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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Susan Hares'" <shares@ndzh.com>, "'Alia Atlas'" <akatlas@gmail.com>
References: <03e701d0faff$b9e484b0$2dad8e10$@olddog.co.uk> <CAG4d1rfoqnfq89rByefqXfCVBc1Sx6iW0Fx-87F4me-q291OCw@mail.gmail.com> <01f701d0fba7$5a00daa0$0e028fe0$@ndzh.com>
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Date: Thu, 1 Oct 2015 16:39:43 +0100
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Subject: Re: [Idr] Alia's AD review of draft-ietf-idr-ls-distribution-10
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Hello,

> One procedural and one technical question.  Did you intend a date of =
June 4, 2015?  If so, why?=20

Not sure to what you are referring. Perhaps you're pointing at the most =
recently posted revision? If so, that was Hannes on, erm, 4th June.

I have only sent email so far and not posted an update. i still need to =
work through Alvaro's review before I can do that. May be a few more =
days, but hopeful before the next 4th June.

> Technical:  Do you believe that sections 6.1.1 and sections 6.1.5 are =
sufficient to describe
> what happens if the extra NLRI do not get sent the private =
infrastructure of route-reflectors
> Sections include below from -11.=20

Actually, my level of anticipation is different from other authors :-)
I don't see why this is necessarily a RR function. Any BGP speaker with =
access to the network topology (e.g., an ASBR) and with suitable policy =
configured, could export as BGP-LS.
The challenges are:
- How does the exporter know on which sessions to do BGP-LS and which =
not?
  I think an RR has the same problem.
- How does a receiver distinguish between normal BGP data and BGP-LS =
data?
  Possibly it should not be receiving both, but if it does, it can look =
at the NLRI.
- Will BGP-LS over-stretch a BGP-speaking router?
  Possibly (in which case use an RR) and possibly not. Depends on =
implementation.
- Will BGP-LS updates swamp other BGP updates?
  Just like IGP-TE updates, this is all about thresholds and policy. =
IMHO, an=20
  implementation should provide knobs for this and an operator should =
choose
  whether to offload to an RR.

Probably could add some scribbles about this.

Adrian


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From: Robert Raszuk <robert@raszuk.net>
To: Adrian Farrel <adrian@olddog.co.uk>
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Cc: "idr@ietf. org" <idr@ietf.org>, draft-ietf-idr-ls-distribution@ietf.org, Alia Atlas <akatlas@juniper.net>, Susan Hares <shares@ndzh.com>
Subject: Re: [Idr] Alia's AD review of draft-ietf-idr-ls-distribution-10
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--089e016818280013a405210d0b2f
Content-Type: text/plain; charset=UTF-8

Adrian,

If you read section 3.2 you realize that BGP-LS uses a new SAFI (71)
therefor most of your questions automatically get's addressed.

Moreover if you go down the same section 3.2 you find out that defined new
SAFI also mandates new BGP capability hence there is no issue on receiving
side either.

As far as "stretching" one may say L3VPN with SAFI 128 can can stretch SAFI
1 speaking BGP router .. however this is up to the deployment model.

Likely and that is what I have heard authors advocating is to use separate
virtual or physical overlay for distributing BGP-LS hence if operator's
endorse this model practically it would have no impact with any other BGP
SAFIs what so ever.

Cheers,
Robert.




On Thu, Oct 1, 2015 at 5:39 PM, Adrian Farrel <adrian@olddog.co.uk> wrote:

> Hello,
>
> > One procedural and one technical question.  Did you intend a date of
> June 4, 2015?  If so, why?
>
> Not sure to what you are referring. Perhaps you're pointing at the most
> recently posted revision? If so, that was Hannes on, erm, 4th June.
>
> I have only sent email so far and not posted an update. i still need to
> work through Alvaro's review before I can do that. May be a few more days,
> but hopeful before the next 4th June.
>
> > Technical:  Do you believe that sections 6.1.1 and sections 6.1.5 are
> sufficient to describe
> > what happens if the extra NLRI do not get sent the private
> infrastructure of route-reflectors
> > Sections include below from -11.
>
> Actually, my level of anticipation is different from other authors :-)
> I don't see why this is necessarily a RR function. Any BGP speaker with
> access to the network topology (e.g., an ASBR) and with suitable policy
> configured, could export as BGP-LS.
> The challenges are:
> - How does the exporter know on which sessions to do BGP-LS and which not?
>   I think an RR has the same problem.
> - How does a receiver distinguish between normal BGP data and BGP-LS data?
>   Possibly it should not be receiving both, but if it does, it can look at
> the NLRI.
> - Will BGP-LS over-stretch a BGP-speaking router?
>   Possibly (in which case use an RR) and possibly not. Depends on
> implementation.
> - Will BGP-LS updates swamp other BGP updates?
>   Just like IGP-TE updates, this is all about thresholds and policy. IMHO,
> an
>   implementation should provide knobs for this and an operator should
> choose
>   whether to offload to an RR.
>
> Probably could add some scribbles about this.
>
> Adrian
>
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr
>

--089e016818280013a405210d0b2f
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small">Adrian,</div><div class=3D"gmail_defaul=
t" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></d=
iv><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-s=
erif;font-size:small">If you read section 3.2 you realize that BGP-LS uses =
a new SAFI (71) therefor most of your questions automatically get&#39;s add=
ressed.=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:arial,=
helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_default=
" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Moreover=
 if you go down the same section 3.2 you find out that defined new SAFI als=
o mandates new BGP capability hence there is no issue on receiving side eit=
her.=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:arial,hel=
vetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_default" s=
tyle=3D"font-family:arial,helvetica,sans-serif;font-size:small">As far as &=
quot;stretching&quot; one may say L3VPN with SAFI 128 can can stretch SAFI =
1 speaking BGP router .. however this is up to the deployment model.=C2=A0<=
/div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans=
-serif;font-size:small"><br></div><div class=3D"gmail_default" style=3D"fon=
t-family:arial,helvetica,sans-serif;font-size:small">Likely and that is wha=
t I have heard authors advocating is to use separate virtual or physical ov=
erlay for distributing BGP-LS hence if operator&#39;s endorse this model pr=
actically it would have no impact with any other BGP SAFIs what so ever.</d=
iv><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-s=
erif;font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-=
family:arial,helvetica,sans-serif;font-size:small">Cheers,<br>Robert.</div>=
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-fam=
ily:arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gma=
il_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small=
"><br></div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote"=
>On Thu, Oct 1, 2015 at 5:39 PM, Adrian Farrel <span dir=3D"ltr">&lt;<a hre=
f=3D"mailto:adrian@olddog.co.uk" target=3D"_blank">adrian@olddog.co.uk</a>&=
gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 =
0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<span class=3D""><br>
&gt; One procedural and one technical question.=C2=A0 Did you intend a date=
 of June 4, 2015?=C2=A0 If so, why?<br>
<br>
</span>Not sure to what you are referring. Perhaps you&#39;re pointing at t=
he most recently posted revision? If so, that was Hannes on, erm, 4th June.=
<br>
<br>
I have only sent email so far and not posted an update. i still need to wor=
k through Alvaro&#39;s review before I can do that. May be a few more days,=
 but hopeful before the next 4th June.<br>
<span class=3D""><br>
&gt; Technical:=C2=A0 Do you believe that sections 6.1.1 and sections 6.1.5=
 are sufficient to describe<br>
&gt; what happens if the extra NLRI do not get sent the private infrastruct=
ure of route-reflectors<br>
&gt; Sections include below from -11.<br>
<br>
</span>Actually, my level of anticipation is different from other authors :=
-)<br>
I don&#39;t see why this is necessarily a RR function. Any BGP speaker with=
 access to the network topology (e.g., an ASBR) and with suitable policy co=
nfigured, could export as BGP-LS.<br>
The challenges are:<br>
- How does the exporter know on which sessions to do BGP-LS and which not?<=
br>
=C2=A0 I think an RR has the same problem.<br>
- How does a receiver distinguish between normal BGP data and BGP-LS data?<=
br>
=C2=A0 Possibly it should not be receiving both, but if it does, it can loo=
k at the NLRI.<br>
- Will BGP-LS over-stretch a BGP-speaking router?<br>
=C2=A0 Possibly (in which case use an RR) and possibly not. Depends on impl=
ementation.<br>
- Will BGP-LS updates swamp other BGP updates?<br>
=C2=A0 Just like IGP-TE updates, this is all about thresholds and policy. I=
MHO, an<br>
=C2=A0 implementation should provide knobs for this and an operator should =
choose<br>
=C2=A0 whether to offload to an RR.<br>
<br>
Probably could add some scribbles about this.<br>
<div class=3D"HOEnZb"><div class=3D"h5"><br>
Adrian<br>
<br>
_______________________________________________<br>
Idr mailing list<br>
<a href=3D"mailto:Idr@ietf.org">Idr@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" rel=3D"noreferrer" ta=
rget=3D"_blank">https://www.ietf.org/mailman/listinfo/idr</a><br>
</div></div></blockquote></div><br></div>

--089e016818280013a405210d0b2f--


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Subject: Re: [Idr] Alia's AD review of draft-ietf-idr-ls-distribution-10
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Adrian: 

Yes -  I was confused about your message and
draft-ietf-idr-ls-distribution-11.  It is my error.  

Sue 

-----Original Message-----
From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Adrian Farrel
Sent: Thursday, October 01, 2015 11:40 AM
To: 'Susan Hares'; 'Alia Atlas'
Cc: 'idr@ietf. org'; draft-ietf-idr-ls-distribution@ietf.org; 'Alia Atlas'
Subject: Re: [Idr] Alia's AD review of draft-ietf-idr-ls-distribution-10

Hello,

> One procedural and one technical question.  Did you intend a date of June
4, 2015?  If so, why? 

Not sure to what you are referring. Perhaps you're pointing at the most
recently posted revision? If so, that was Hannes on, erm, 4th June.

I have only sent email so far and not posted an update. i still need to work
through Alvaro's review before I can do that. May be a few more days, but
hopeful before the next 4th June.

>> Technical:  Do you believe that sections 6.1.1 and sections 6.1.5 are 
>> sufficient to describe what happens if the extra NLRI do not get sent 
>> the private infrastructure of route-reflectors Sections include below
from -11.

>Actually, my level of anticipation is different from other authors :-) I
don't see why this is necessarily a RR function. Any BGP speaker with
>access to the network topology (e.g., an ASBR) and with suitable policy
configured, could export as BGP-LS.
>The challenges are:
> How does the exporter know on which sessions to do BGP-LS and which not?
 > I think an RR has the same problem.

I agree with you that RR does not change the problem. 

> How does a receiver distinguish between normal BGP data and BGP-LS data?
> Possibly it should not be receiving both, but if it does, it can look at
the NLRI.

Stating that the distinguishing is based on the NLRI indicates the NLRI must
be reviewed.
If you have both types of NLRI, you are looking at AFI/SAFI or NRLI
filtering.  This should be stated. 

>- Will BGP-LS over-stretch a BGP-speaking router?
> Possibly (in which case use an RR) and possibly not. Depends on
implementation.

What happens when it over stretches and how do you detect it. 
Is there any guidance for the operations people?  If so, please state it. 

>- Will BGP-LS updates swamp other BGP updates?
> Just like IGP-TE updates, this is all about thresholds and policy. IMHO,
an
> implementation should provide knobs for this and an operator should choose
> whether to offload to an RR.
>Probably could add some scribbles about this.

In the end, this is my point. Describe the knobs that need to be there for
overload and detection. 

Best wishes, 
Sue 
______________________________________________ 



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Subject: [Idr] Alvaro's AD Comments on draft-ietf-idr-ls-distribution
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Thanks, Alvaro, for your review of (I think) version -10 of the draft.

Here are some answers to your questions.

> Major:
>
> Section 5 (IANA Considerations) 
> I didn't see this comment as part of IANA's review, but the text about the
Designated Experts
>  should be clarified.  There is some guidance in RFC5226.

You're right.
I think we should add a new subsection 5.1...

5.1  Guidance for Designated Experts

In all cases of review by Designated Expert (DE) described here, the DE is
expected to ascertain the existence of suitable documentation (a specification)
as described in RFC5226, and to verify the permanent and publically readily
available of the document. The DE is also expected to check the clarity of
purpose and use of the requested code points. Lastly, the DE must verify that
any specification produced in the IETF that requests one of these code points
has been made available for review by the IDR working group, and that any
specification produced outside the IETF does not conflict with work that is
active or already published within the IETF.

> "Note to RFC Editor: this section may be removed on publication as an RFC."
The IANA 
> considerations section should remain because there are in fact considerations
there.

Yes, this text is a hang-over from the document template.

> I would like to have Designated Experts in place soon.  It seems to me that
having 2 of the
> authors volunteer (primary and backup) would be ideal.  Please let me know if
you want to do it.

I think the absence of an answer speaks for itself.

> 6.1.2 (Installation and Initial Setup): [default] "maximum rate at which
Link-State NLRIs will
> be advertised/withdrawn from neighbors is set to 200 updates per second."
Where did the
> number come from?  It does look very big.  Are you assuming just changes or
startup as well?
> One of my concerns is the interaction with other BGP stuff (like regular
routing!).  
> In fact, in 6.1.5 (Impact on Network Operation) you wrote:  "Frequency of
Link-State NLRI
> updates could interfere with regular BGP prefix distribution.  A network
operator MAY use
> a dedicated Route-Reflector infrastructure to distribute Link-State NLRIs."  
> Why not use SHOULD?  If there may be significant operational impact I think
you should be
> more direct with the guidance.

There are several questions folded in here.

Firstly, understand that the maximum rate described here is the default rate if
not overridden by an operator or by an implementation that knows better. So we
shouldn't get too hung up on it. Although, obviously, there is a reasonable
expectation that if an implementation uses this default value the function
should work.

Why 200? Not sure where that came from. I have no evidence that 200 is a problem
and given that IDR has done quite a bit of implementation and interop without
anyone screaming, I assume this is OK.
https://www.ietf.org/id/draft-ietf-idr-ls-distribution-impl-04.txt doesn't
mention any problems. Are you aware of implementations where this is a problem?

Could BGP-LS advertisements impact on "other BGP stuff"? Well, that really is an
implementation and deployment issues? Will the BGP-LS speaker doing the
advertisements also advertise "other BGP stuff" on the same session? Is the
advertisement higher cost than the consolidation of IGP-TE information and the
application of policy to determine what LS information to advertise. Could the
advertisements be prioritised? This has been something of a recent thread on the
IDR list and, although you are raising interesting questions, I don't believe we
have any way to draw a line unless someone reports real problems that are not
caused by implementation choices, yet we are required (by the IESG) to supply
defaults for configurable parameters.

Why "MAY" use a dedicated RR rather than "SHOULD"? Because there really doesn't
appear to be any indication that this is a problem in all networks with all BGP
implementations. 

> 6.2.2 (Fault Management). "If an implementation of BGP-LS detects a malformed
attribute, then
> it SHOULD use the 'Attribute Discard' action.."  Doesn't this mean that the
information may be
> useless, completely missing, or in the best case incomplete?  Aren't we better
off just resetting
> the session or at least requesting a route refresh?

I don't think we are assuming corruption. So the malformed attribute comes as
the result of an implementation difference or a bug at the sender. Requesting a
refresh runs a significant risk of simply thrashing the advertisement since each
time it is sent it will contain the same malformed attribute. This problem is
considerably worsened if the session is reset because then we thrash the whole
session.

> Minor:
>
> 3.1 (TLV Format): "Unrecognized types are preserved and propagated."  This
statement sounds necessary 
> for interoperability and the correct propagation of the information.  Should
it have a "MUST" in it?

Isn't this standard behavior for unknown TLVs in BGP?
E.g., 5512 section 4 "Unknown types are to be ignored and skipped upon receipt."
That said, 5512 section 4 also says "When the TLV is being processed by a BGP
speaker that will be performing encapsulation, any unknown sub-TLVs MUST be
ignored and skipped."
Since the behavior described here is new in as much as it describes processing
of a new NLRI, I think using "MUST" would be OK.

> 3.1 (TLV Format): "If there are more TLVs of the same type, then the TLVs MUST
be ordered
> in ascending order of the TLV value within the TLVs with the same type."
Ordered by value?
>  How is that done?  Some TLVs contain sub-TLVs in the value field, but others
don't.

We could say "treating the entire value field an opaque hexadecimal string and
comparing leftmost octets first regardless of the length of the string."

> 3.2.1 (Node Descriptors):  The BGP-LS Identifier is used, but it is defined
later in 3.2.1.4. 
> Please add a reference so that it is not mistaken for the "Identifier" (in the
NLRIs
> themselves in Section 3.2).

Per Alia's comment replacement text is...
  BGP-LS uses the Autonomous System (AS) Number and BGP-LS Identifier
  (see Section 3.2.1.4) to disambiguate the Router-IDs, as described in
  Section 3.2.1.1.

> 3.3.2 (Link Attribute TLVs):  The attributes used are defined for ISIS, some
are easily 
> derived from OSPF, but other don't map to anything.  For example,
"administrative
> group (color)".  How are these types of undefined parameters in OSPF figured
out?
> I suspect the easy answer is to just say that it is out of scope, but the fact
remains
> that there can be information there that doesn't exist in the original
protocol.  It
> should at least be clarified what is expected.  Note that in 3.3.2.5 (Shared
Risk Link
> Group TLV) a different case of this shows up: the text seems to indicate that
> because there is no SRLG TLV in OSPD-TE, then this information wouldn't be 
> available.  Again, please clarify if there may be procedures outside the scope
of
> the document that could apply.

I'm not sure the missing attributes should be "figured out". The job of BGP-LS
is to collect and distribute information from the IGP. If the information is not
there, it would not be invented by the 
BGP-LS speaker.

The SRLG case has been fixed in -11: it was an error.

> 3.3.2.2 (MPLS Protocol Mask TLV) 
> OLD>  
>   Generation of the MPLS Protocol Mask TLV is only valid for
>   originators which have local link insight, like for example Protocol-
>   IDs 'Static' or 'Direct' as per Table 2.  The 'MPLS Protocol Mask'
>   TLV MUST NOT be included in NLRIs with protocol-IDs 'IS-IS L1', 'IS-
>   IS L2', 'OSPFv2' or 'OSPFv3' as per Table 2.
> NEW>
>   Generation of the MPLS Protocol Mask TLV is only valid for
>   originators which have local link insight, like for example Protocol-
>   IDs 'Static' or 'Direct' as per Table 2.  The 'MPLS Protocol Mask'
>   TLV MUST NOT be included in NLRIs with other protocol-Ids.

Why?
Certainly your proposal appears right: there are only four protocols listed in
Table 2, but there is the question of future IDs. So we could write...

   Generation of the MPLS Protocol Mask TLV is only valid for
   originators which have local link insight, like for example Protocol-
   IDs 'Static' or 'Direct' as per Table 2.  The 'MPLS Protocol Mask'
   TLV MUST NOT be included in NLRIs with the other Protocol-IDs
   listed in Table 2.

I don't object to this change, but struggle to see the value.

>  "LINK_STATE attribute" shows up in 3.3.2 and 3.3.3.  What is it?

Thanks for this catch. Old text. Should now read "BGP-LS attribute with a link
NLRI"

> In 3.3.1.1 (Node Flag Bits TLV) you included the ISIS Overload Bit, but didn't
> say anything about OSPFv3's R-bit or v6-bit; and in 3.3.3.1 (IGP Flags TLV)
you
> included the IS-IS Up/Down Bit in this TLV, but I didn't see the OSPF DN-bit
> anywhere.  Are these opportunities to reuse the same bit with a more generic
> definition while covering a similar option in OSPF?  I know you can't cover
all
> the options, but these two are well-known and seem low hanging fruit.

Although no-one was asking for this and no-one will have implemented it, I can
see no reason not to change to read...

3.3.1.1.  Node Flag Bits TLV

   The Node Flag Bits TLV carries a bit mask describing node attributes.
   The value is a variable length bit array of flags, where each bit
   represents a node capability.

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |              Type             |             Length            |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |O|T|E|B|R|V| Rsvd|
     +-+-+-+-+-+-+-+-+-+

                   Figure 15: Node Flag Bits TLV format

   The bits are defined as follows:

            +----------+-------------------------+-----------+
            |   Bit    | Description             | Reference |
            +----------+-------------------------+-----------+
            |   'O'    | Overload Bit            | [RFC1195] |
            |   'T'    | Attached Bit            | [RFC1195] |
            |   'E'    | External Bit            | [RFC2328] |
            |   'B'    | ABR Bit                 | [RFC2328] |
            |   'R'    | Router Bit              | [RFC5340] |
            |   'V'    | V6 Bit                  | [RFC5340] |
            | Reserved | Reserved for future use |           |
            +----------+-------------------------+-----------+

                    Table 8: Node Flag Bits Definitions


And similarly no-one has asked for the DN-bit from 2328 or 5340 in section
3.3.3.1. I am less sanguine about adding this as I am not quite sure that it is
useful in BGP-LS, but it would certainly be easy to add. With this bit, and with
other potential additions to both bit fields, I suggest we wait for the
need/desire and folk can write new drafts.

> 6.2.5.  (Performance Management)  It might be nice to include updates/second
as 
> one of the performance indicators.

I think that we add to the bottom of 6.2.5 as follows:

"These statistics should be recorded as absolute counts since system or session
start time. An implementation MAY also enhance this information by also
recording peak per-second counts in each case."

> Section 8 (Security Considerations) "The principal attack a consumer may apply
is to 
> attempt to start multiple sessions either sequentially or simultaneously."
Isn't this
> an attack that any other node can try?  Why limit the discussion only to
consumers?

I think you have to be a recognised peer for this attack to have any significant
value that is specific to *this* document.

> Looking at the references, it seems to me that the following changes could
> be made: 
> Make Informative: RFC1918
Sure
> Make Normative: I-D.ietf-idr-error-handling
Yes, and this is now RFC7606

> Curious question:  When encoding a "normal" size node using BGP-LS, what is
the
> resulting size of the UPDATE?

I'll leave this as an exercise for the reader.

> Nits:
> 3.2: s/'Static' protocol types/'Static configuration' protocol types     Again
in 3.3.2.2.
> 3.2.1 and 6.2.3 : What does "Paragraph 2" refer to?
> 3.2.1.2: "mandatory TLV in all three types of NLRIs"  I assume you're
referring to Node, 
> Link and Prefix NLRIs, right?  However, it is confusing because there are in
fact 4 types
> defined.  Please correct.
> 3.2.1.4: "IGP Router ID.mandatory TLV"  Should be sub-TLV.
> 3.2.3.1: "The Route Type TLV allows to discrimination of these
advertisements./The 
> Route Type TLV allows the discrimination of these advertisements.
> 3.3.2.2: Please be consistent in the name.  Is it "MPLS Protocol Mask TLV" or
just
> "MPLS Protocol TLV"?
> The description of the example in 3.7 is easier to read (because of the
formatting) than
> the one in 3.6.  It would be nice to be consistent.
> 3.8 seems to be a better example of simply ships in the night than migration
as the
> emphasis is put on identifying the common links of the two processes.
> 4.1 s/"see" the full topology of AS/"see" the full topology of AS2

I'll work through the nits as well.
New revision "soon".

Thanks,
Adrian



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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "Alvaro Retana (aretana)" <aretana@cisco.com>
Thread-Topic: [Idr] Alvaro's AD Comments on draft-ietf-idr-ls-distribution
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Subject: Re: [Idr] Alvaro's AD Comments on draft-ietf-idr-ls-distribution
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From: "Alvaro Retana (aretana)" <aretana@cisco.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>
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On 10/3/15, 6:48 AM, "Adrian Farrel" <adrian@olddog.co.uk> wrote:

Adrian:

Hi!  Thanks for helping move this document forward.

I=B9m replying only to the points I don=B9t agree with, or just have some
additional comments about.  Please take a look below.

Thanks!

Alvaro.

. . .
>
>> Major:
>>
>> Section 5 (IANA Considerations)
>> I didn't see this comment as part of IANA's review, but the text about
>>the
>Designated Experts
>>  should be clarified.  There is some guidance in RFC5226.
>
>You're right.
>I think we should add a new subsection 5.1...
>
>5.1  Guidance for Designated Experts
>
>In all cases of review by Designated Expert (DE) described here, the DE is
>expected to ascertain the existence of suitable documentation (a
>specification)
>as described in RFC5226, and to verify the permanent and publically
>readily
>available of the document. The DE is also expected to check the clarity of

s/available/availability

>purpose and use of the requested code points. Lastly, the DE must verify
>that
>any specification produced in the IETF that requests one of these code
>points
>has been made available for review by the IDR working group, and that any
>specification produced outside the IETF does not conflict with work that
>is
>active or already published within the IETF.
>
. . .
>
>> I would like to have Designated Experts in place soon.  It seems to me
>>that
>having 2 of the
>> authors volunteer (primary and backup) would be ideal.  Please let me
>>know if
>you want to do it.
>
>I think the absence of an answer speaks for itself.

:-(

Given the potential for extensions, I=B9ll be back knocking soon..

>
>> 6.1.2 (Installation and Initial Setup): [default] "maximum rate at which
>Link-State NLRIs will
>> be advertised/withdrawn from neighbors is set to 200 updates per
>>second."
>Where did the
>> number come from?  It does look very big.  Are you assuming just
>>changes or
>startup as well?
>> One of my concerns is the interaction with other BGP stuff (like regular
>routing!). =20
>> In fact, in 6.1.5 (Impact on Network Operation) you wrote:  "Frequency
>>of
>Link-State NLRI
>> updates could interfere with regular BGP prefix distribution.  A network
>operator MAY use
>> a dedicated Route-Reflector infrastructure to distribute Link-State
>>NLRIs." =20
>> Why not use SHOULD?  If there may be significant operational impact I
>>think
>you should be
>> more direct with the guidance.
>
>There are several questions folded in here.
>
>Firstly, understand that the maximum rate described here is the default
>rate if
>not overridden by an operator or by an implementation that knows better.
>So we
>shouldn't get too hung up on it. Although, obviously, there is a
>reasonable
>expectation that if an implementation uses this default value the function
>should work.
>
>Why 200? Not sure where that came from. I have no evidence that 200 is a
>problem
>and given that IDR has done quite a bit of implementation and interop
>without
>anyone screaming, I assume this is OK.
>https://www.ietf.org/id/draft-ietf-idr-ls-distribution-impl-04.txt doesn't
>mention any problems. Are you aware of implementations where this is a
>problem?

No, but implementation and interop (most likely in a controlled
environment) is very different than operation in the wild.  But I am sure
that you (and everyone else listed as an author) obviously knows that.

>Could BGP-LS advertisements impact on "other BGP stuff"? Well, that
>really is an
>implementation and deployment issues? Will the BGP-LS speaker doing the
>advertisements also advertise "other BGP stuff" on the same session? Is
>the
>advertisement higher cost than the consolidation of IGP-TE information
>and the
>application of policy to determine what LS information to advertise.
>Could the
>advertisements be prioritised? This has been something of a recent thread
>on the
>IDR list and, although you are raising interesting questions, I don't
>believe we
>have any way to draw a line unless someone reports real problems that are
>not
>caused by implementation choices, yet we are required (by the IESG) to
>supply
>defaults for configurable parameters.

Section 6 is the =B3Operational Considerations=B2 section, where I expect y=
ou
to provide operational considerations.  It sounds like you=B9re saying we
need deployment (not just testing) experience so that clear guidance can
be given and that you=B9re otherwise putting numbers in there just because
you have to, am I interpreting this correctly?

>Why "MAY" use a dedicated RR rather than "SHOULD"? Because there really
>doesn't
>appear to be any indication that this is a problem in all networks with
>all BGP
>implementations.=20
>
>> 6.2.2 (Fault Management). "If an implementation of BGP-LS detects a
>>malformed
>attribute, then
>> it SHOULD use the 'Attribute Discard' action.."  Doesn't this mean that
>>the
>information may be
>> useless, completely missing, or in the best case incomplete?  Aren't we
>>better
>off just resetting
>> the session or at least requesting a route refresh?
>
>I don't think we are assuming corruption. So the malformed attribute
>comes as
>the result of an implementation difference or a bug at the sender.

That would still result in the receiver not having the information.  The
cause doesn=B9t seem to matter in this case, the end result does.

>Requesting a
>refresh runs a significant risk of simply thrashing the advertisement
>since each
>time it is sent it will contain the same malformed attribute. This
>problem is
>considerably worsened if the session is reset because then we thrash the
>whole
>session.

Of course.

I was trying (and didn=B9t do a good job) to suggest that if we had
isolation (as in carrying the BGP-LS in a separate session/RR
infrastructure), then a better job could be done at not only isolating
from failure but also at recovering information so that both application
could work better.


. . .
>
>
>> 3.3.2.2 (MPLS Protocol Mask TLV)
>> OLD> =20
>>   Generation of the MPLS Protocol Mask TLV is only valid for
>>   originators which have local link insight, like for example Protocol-
>>   IDs 'Static' or 'Direct' as per Table 2.  The 'MPLS Protocol Mask'
>>   TLV MUST NOT be included in NLRIs with protocol-IDs 'IS-IS L1', 'IS-
>>   IS L2', 'OSPFv2' or 'OSPFv3' as per Table 2.
>> NEW>
>>   Generation of the MPLS Protocol Mask TLV is only valid for
>>   originators which have local link insight, like for example Protocol-
>>   IDs 'Static' or 'Direct' as per Table 2.  The 'MPLS Protocol Mask'
>>   TLV MUST NOT be included in NLRIs with other protocol-Ids.
>
>Why?
>Certainly your proposal appears right: there are only four protocols
>listed in
>Table 2, but there is the question of future IDs. So we could write...
>
>   Generation of the MPLS Protocol Mask TLV is only valid for
>   originators which have local link insight, like for example Protocol-
>   IDs 'Static' or 'Direct' as per Table 2.  The 'MPLS Protocol Mask'
>   TLV MUST NOT be included in NLRIs with the other Protocol-IDs
>   listed in Table 2.
>
>I don't object to this change, but struggle to see the value.

Why?  Potential future IDs..

I think that just listing IDs that are now in Table 2 (as in the original
text, which is the same as saying =B3other..in Table 2=B2), doesn=B9t cover
future IDs that don=B9t have =B3local link insight=B2.  Table 2 already con=
tains
IDs for protocols that have that insight and others that don=B9t..and we (a=
t
least I) don=B9t know what other things will be put in there.  In short, I
think we should just leave it open and not list specifics as those could
change.

Now that I revisit this point, I think that the new text should be
something like this:

   The =8CMPLS Protocol Mask=B9 TLV SHOULD only be used with
   originators that have local link insight, like for example
   Protocol-IDs 'Static' or 'Direct' as per Table 2.

That way, if others come up in the future we=B9re covered and not dependent
on a Table.



. . .
>
>> Section 8 (Security Considerations) "The principal attack a consumer
>>may apply
>is to=20
>> attempt to start multiple sessions either sequentially or
>>simultaneously."
>Isn't this
>> an attack that any other node can try?  Why limit the discussion only to
>consumers?
>
>I think you have to be a recognised peer for this attack to have any
>significant
>value that is specific to *this* document.

I meant that a BGP Speaker could also start multiple sessions with a
consumer, for example.

. . .
>
>> Curious question:  When encoding a "normal" size node using BGP-LS,
>>what is
>the
>> resulting size of the UPDATE?
>
>I'll leave this as an exercise for the reader.

Thanks! :-(

I was mostly wondering if the information is anywhere close to 4k or not.
The implementation report doesn=B9t say anything either. :-(


From nobody Sun Oct  4 10:39:38 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Acee Lindem \(acee\)'" <acee@cisco.com>, "'Alvaro Retana \(aretana\)'" <aretana@cisco.com>
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Subject: Re: [Idr] Alvaro's AD Comments on draft-ietf-idr-ls-distribution
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Thanks Acee,

That's helpful.

Adrian

> Hi Adrian, Alvaro,
>
> >And similarly no-one has asked for the DN-bit from 2328 or 5340 in section
> >3.3.3.1. I am less sanguine about adding this as I am not quite sure that
> >it is useful in BGP-LS, but it would certainly be easy to add. With this bit,
> >and with other potential additions to both bit fields, I suggest we wait
> > for the need/desire and folk can write new drafts.
> 
> The DN-bit is not really applicable to at the Node level in OSPF and
> IS-IS. It is applicable to prefixes and is included in the flags in
> section 3.3.3.1 (See the D-bit). For extra credit, you could add a
> reference to OSPF and RFC 4576. This document started out with very few
> references to the applicable OSPF RFCs but quite a few have been added by
> Alia and me.


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Subject: [Idr] I-D Action: draft-ietf-idr-ls-distribution-12.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Inter-Domain Routing Working Group of the IETF.

        Title           : North-Bound Distribution of Link-State and TE Information using BGP
        Authors         : Hannes Gredler
                          Jan Medved
                          Stefano Previdi
                          Adrian Farrel
                          Saikat Ray
	Filename        : draft-ietf-idr-ls-distribution-12.txt
	Pages           : 47
	Date            : 2015-10-04

Abstract:
   In a number of environments, a component external to a network is
   called upon to perform computations based on the network topology and
   current state of the connections within the network, including
   traffic engineering information.  This is information typically
   distributed by IGP routing protocols within the network.

   This document describes a mechanism by which links state and traffic
   engineering information can be collected from networks and shared
   with external components using the BGP routing protocol.  This is
   achieved using a new BGP Network Layer Reachability Information
   (NLRI) encoding format.  The mechanism is applicable to physical and
   virtual IGP links.  The mechanism described is subject to policy
   control.

   Applications of this technique include Application Layer Traffic
   Optimization (ALTO) servers, and Path Computation Elements (PCEs).



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-idr-ls-distribution/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-idr-ls-distribution-12

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-ls-distribution-12


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


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Cc: idr@ietf.org, draft-ietf-idr-ls-distribution@ietf.org
Subject: Re: [Idr] Alvaro's AD Comments on draft-ietf-idr-ls-distribution
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Thanks for this Alvaro,

I made some further changes and just posted a revised I-D.

I'll spell out the changes for the WG and answer your email shortly.

Adrian

> -----Original Message-----
> From: Alvaro Retana (aretana) [mailto:aretana@cisco.com]
> Sent: 04 October 2015 14:55
> To: adrian@olddog.co.uk
> Cc: draft-ietf-idr-ls-distribution@ietf.org; idr@ietf.org
> Subject: Re: Alvaro's AD Comments on draft-ietf-idr-ls-distribution
>=20
> On 10/3/15, 6:48 AM, "Adrian Farrel" <adrian@olddog.co.uk> wrote:
>=20
> Adrian:
>=20
> Hi!  Thanks for helping move this document forward.
>=20
> I=B9m replying only to the points I don=B9t agree with, or just have =
some
> additional comments about.  Please take a look below.
>=20
> Thanks!
>=20
> Alvaro.
>=20
> . . .
> >
> >> Major:
> >>
> >> Section 5 (IANA Considerations)
> >> I didn't see this comment as part of IANA's review, but the text =
about
> >>the
> >Designated Experts
> >>  should be clarified.  There is some guidance in RFC5226.
> >
> >You're right.
> >I think we should add a new subsection 5.1...
> >
> >5.1  Guidance for Designated Experts
> >
> >In all cases of review by Designated Expert (DE) described here, the =
DE is
> >expected to ascertain the existence of suitable documentation (a
> >specification)
> >as described in RFC5226, and to verify the permanent and publically
> >readily
> >available of the document. The DE is also expected to check the =
clarity of
>=20
> s/available/availability
>=20
> >purpose and use of the requested code points. Lastly, the DE must =
verify
> >that
> >any specification produced in the IETF that requests one of these =
code
> >points
> >has been made available for review by the IDR working group, and that =
any
> >specification produced outside the IETF does not conflict with work =
that
> >is
> >active or already published within the IETF.
> >
> . . .
> >
> >> I would like to have Designated Experts in place soon.  It seems to =
me
> >>that
> >having 2 of the
> >> authors volunteer (primary and backup) would be ideal.  Please let =
me
> >>know if
> >you want to do it.
> >
> >I think the absence of an answer speaks for itself.
>=20
> :-(
>=20
> Given the potential for extensions, I=B9ll be back knocking soon..
>=20
> >
> >> 6.1.2 (Installation and Initial Setup): [default] "maximum rate at =
which
> >Link-State NLRIs will
> >> be advertised/withdrawn from neighbors is set to 200 updates per
> >>second."
> >Where did the
> >> number come from?  It does look very big.  Are you assuming just
> >>changes or
> >startup as well?
> >> One of my concerns is the interaction with other BGP stuff (like =
regular
> >routing!).
> >> In fact, in 6.1.5 (Impact on Network Operation) you wrote:  =
"Frequency
> >>of
> >Link-State NLRI
> >> updates could interfere with regular BGP prefix distribution.  A =
network
> >operator MAY use
> >> a dedicated Route-Reflector infrastructure to distribute Link-State
> >>NLRIs."
> >> Why not use SHOULD?  If there may be significant operational impact =
I
> >>think
> >you should be
> >> more direct with the guidance.
> >
> >There are several questions folded in here.
> >
> >Firstly, understand that the maximum rate described here is the =
default
> >rate if
> >not overridden by an operator or by an implementation that knows =
better.
> >So we
> >shouldn't get too hung up on it. Although, obviously, there is a
> >reasonable
> >expectation that if an implementation uses this default value the =
function
> >should work.
> >
> >Why 200? Not sure where that came from. I have no evidence that 200 =
is a
> >problem
> >and given that IDR has done quite a bit of implementation and interop
> >without
> >anyone screaming, I assume this is OK.
> >https://www.ietf.org/id/draft-ietf-idr-ls-distribution-impl-04.txt =
doesn't
> >mention any problems. Are you aware of implementations where this is =
a
> >problem?
>=20
> No, but implementation and interop (most likely in a controlled
> environment) is very different than operation in the wild.  But I am =
sure
> that you (and everyone else listed as an author) obviously knows that.
>=20
> >Could BGP-LS advertisements impact on "other BGP stuff"? Well, that
> >really is an
> >implementation and deployment issues? Will the BGP-LS speaker doing =
the
> >advertisements also advertise "other BGP stuff" on the same session? =
Is
> >the
> >advertisement higher cost than the consolidation of IGP-TE =
information
> >and the
> >application of policy to determine what LS information to advertise.
> >Could the
> >advertisements be prioritised? This has been something of a recent =
thread
> >on the
> >IDR list and, although you are raising interesting questions, I don't
> >believe we
> >have any way to draw a line unless someone reports real problems that =
are
> >not
> >caused by implementation choices, yet we are required (by the IESG) =
to
> >supply
> >defaults for configurable parameters.
>=20
> Section 6 is the =B3Operational Considerations=B2 section, where I =
expect you
> to provide operational considerations.  It sounds like you=B9re saying =
we
> need deployment (not just testing) experience so that clear guidance =
can
> be given and that you=B9re otherwise putting numbers in there just =
because
> you have to, am I interpreting this correctly?
>=20
> >Why "MAY" use a dedicated RR rather than "SHOULD"? Because there =
really
> >doesn't
> >appear to be any indication that this is a problem in all networks =
with
> >all BGP
> >implementations.
> >
> >> 6.2.2 (Fault Management). "If an implementation of BGP-LS detects a
> >>malformed
> >attribute, then
> >> it SHOULD use the 'Attribute Discard' action.."  Doesn't this mean =
that
> >>the
> >information may be
> >> useless, completely missing, or in the best case incomplete?  =
Aren't we
> >>better
> >off just resetting
> >> the session or at least requesting a route refresh?
> >
> >I don't think we are assuming corruption. So the malformed attribute
> >comes as
> >the result of an implementation difference or a bug at the sender.
>=20
> That would still result in the receiver not having the information.  =
The
> cause doesn=B9t seem to matter in this case, the end result does.
>=20
> >Requesting a
> >refresh runs a significant risk of simply thrashing the advertisement
> >since each
> >time it is sent it will contain the same malformed attribute. This
> >problem is
> >considerably worsened if the session is reset because then we thrash =
the
> >whole
> >session.
>=20
> Of course.
>=20
> I was trying (and didn=B9t do a good job) to suggest that if we had
> isolation (as in carrying the BGP-LS in a separate session/RR
> infrastructure), then a better job could be done at not only isolating
> from failure but also at recovering information so that both =
application
> could work better.
>=20
>=20
> . . .
> >
> >
> >> 3.3.2.2 (MPLS Protocol Mask TLV)
> >> OLD>
> >>   Generation of the MPLS Protocol Mask TLV is only valid for
> >>   originators which have local link insight, like for example =
Protocol-
> >>   IDs 'Static' or 'Direct' as per Table 2.  The 'MPLS Protocol =
Mask'
> >>   TLV MUST NOT be included in NLRIs with protocol-IDs 'IS-IS L1', =
'IS-
> >>   IS L2', 'OSPFv2' or 'OSPFv3' as per Table 2.
> >> NEW>
> >>   Generation of the MPLS Protocol Mask TLV is only valid for
> >>   originators which have local link insight, like for example =
Protocol-
> >>   IDs 'Static' or 'Direct' as per Table 2.  The 'MPLS Protocol =
Mask'
> >>   TLV MUST NOT be included in NLRIs with other protocol-Ids.
> >
> >Why?
> >Certainly your proposal appears right: there are only four protocols
> >listed in
> >Table 2, but there is the question of future IDs. So we could =
write...
> >
> >   Generation of the MPLS Protocol Mask TLV is only valid for
> >   originators which have local link insight, like for example =
Protocol-
> >   IDs 'Static' or 'Direct' as per Table 2.  The 'MPLS Protocol Mask'
> >   TLV MUST NOT be included in NLRIs with the other Protocol-IDs
> >   listed in Table 2.
> >
> >I don't object to this change, but struggle to see the value.
>=20
> Why?  Potential future IDs..
>=20
> I think that just listing IDs that are now in Table 2 (as in the =
original
> text, which is the same as saying =B3other..in Table 2=B2), doesn=B9t =
cover
> future IDs that don=B9t have =B3local link insight=B2.  Table 2 =
already contains
> IDs for protocols that have that insight and others that don=B9t..and =
we (at
> least I) don=B9t know what other things will be put in there.  In =
short, I
> think we should just leave it open and not list specifics as those =
could
> change.
>=20
> Now that I revisit this point, I think that the new text should be
> something like this:
>=20
>    The =8CMPLS Protocol Mask=B9 TLV SHOULD only be used with
>    originators that have local link insight, like for example
>    Protocol-IDs 'Static' or 'Direct' as per Table 2.
>=20
> That way, if others come up in the future we=B9re covered and not =
dependent
> on a Table.
>=20
>=20
>=20
> . . .
> >
> >> Section 8 (Security Considerations) "The principal attack a =
consumer
> >>may apply
> >is to
> >> attempt to start multiple sessions either sequentially or
> >>simultaneously."
> >Isn't this
> >> an attack that any other node can try?  Why limit the discussion =
only to
> >consumers?
> >
> >I think you have to be a recognised peer for this attack to have any
> >significant
> >value that is specific to *this* document.
>=20
> I meant that a BGP Speaker could also start multiple sessions with a
> consumer, for example.
>=20
> . . .
> >
> >> Curious question:  When encoding a "normal" size node using BGP-LS,
> >>what is
> >the
> >> resulting size of the UPDATE?
> >
> >I'll leave this as an exercise for the reader.
>=20
> Thanks! :-(
>=20
> I was mostly wondering if the information is anywhere close to 4k or =
not.
> The implementation report doesn=B9t say anything either. :-(


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Subject: [Idr] Changes to draft-ietf-idr-ls-distribution
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As promised, here is an explanation of the changes for -12 of this draft.

- Hannes' coordinates changed
- Section 3.1. Explain how to order TLVs of the same type.
- Section 3.2. Remove colloquialism.
- Section 3.2. Add reference to RFC 4364 for Route Distinguishers.
- Change 'static' to 'static configuration'.
- Section 3.2.1. Fix reference and remove colloquialism.
- Section 3.2.1.2. Clarify which NLRIs are meant.
- Fix "NRLI" to "NLRI".
- Section 3.3.1.1. Add R and V bits from OSPFv3.
- Fix "LINK_STATE Attribute" to "BGP-LS attribute with a link NLRI".
- Section 3.3.2.2. Wordsmithing.
- Section 3.3.2.3. Wordsmithing.
- Section 3.3.3.4. Add section reference for pointer to RFC 5305.
- Section 3.7. Fix IP addresses.
- Section 5. Remove instruction to RFC Editor.
- Section 5.1. New subsection.
- Section 6.2.1. Complete rewrite.
- draft-ietf-idr-error-handling is now RFC 7606.
- Section 6.2.3. Fix reference.
- Section 6.2.5. Add paragraph on time-based measurements.
- Fiddle with references.

Cheers,
Adrian


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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Alvaro Retana \(aretana\)'" <aretana@cisco.com>
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Subject: Re: [Idr] Alvaro's AD Comments on draft-ietf-idr-ls-distribution
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Hi Alvaro,

Here is a better reply snipped still further.

> >> Major:
> >> I would like to have Designated Experts in place soon.  It seems to =
me
> >> that having 2 of the authors volunteer (primary and backup) would =
be
> >> ideal.  Please let me know if you want to do it.
> >
> >I think the absence of an answer speaks for itself.
>=20
> :-(
>=20
> Given the potential for extensions, I=B9ll be back knocking soon..

I'm not close enough to running code. I'm sure the WG can find stuckees.

> >> 6.1.2 (Installation and Initial Setup): [default] "maximum rate at =
which
> >> Link-State NLRIs will be advertised/withdrawn from neighbors is set =
to
> >> 200 updates per second."
> >>Where did the number come from?  It does look very big.  Are you
> >> assuming just changes or startup as well?
> >> One of my concerns is the interaction with other BGP stuff (like =
regular
> >>routing!).  In fact, in 6.1.5 (Impact on Network Operation) you =
wrote:
> >> "Frequency of Link-State NLRI updates could interfere with regular =
BGP
> >> prefix distribution.  A network operator MAY use a dedicated Route-
> >> Reflector infrastructure to distribute Link-State NLRIs."
> >> Why not use SHOULD?  If there may be significant operational impact =
I
> >>think you should be more direct with the guidance.
> >
> >There are several questions folded in here.
> >
> >Firstly, understand that the maximum rate described here is the =
default
> > rate if not overridden by an operator or by an implementation that
> > knows better.
> > So we shouldn't get too hung up on it. Although, obviously, there is =
a
> > reasonable expectation that if an implementation uses this default
> > value the function should work.
> >
> > Why 200? Not sure where that came from. I have no evidence that 200
> > is a problem and given that IDR has done quite a bit of =
implementation
> > and interop without anyone screaming, I assume this is OK.
> >https://www.ietf.org/id/draft-ietf-idr-ls-distribution-impl-04.txt =
doesn't
> >mention any problems. Are you aware of implementations where this is =
a
> >problem?
>=20
> No, but implementation and interop (most likely in a controlled
> environment) is very different than operation in the wild.  But I am =
sure
> that you (and everyone else listed as an author) obviously knows that.

I think it is tremendously difficult to work out / predict what a =
reasonable
default value is for operation in  real network. I'd be happy to not =
give any
guidance because of that, but history says that if we don't suggest a =
default we
will be caned by the IESG. You can't win :-)

We have picked a value we believe will not be a problem. But it is art =
not
science.

> > Could BGP-LS advertisements impact on "other BGP stuff"? Well, that
> > really is an implementation and deployment issues? Will the BGP-LS=20
> > speaker doing the advertisements also advertise "other BGP stuff" on
> > the same session? Is the advertisement higher cost than the =
consolidation
> > of IGP-TE information and the application of policy to determine =
what LS
> > information to advertise. Could the advertisements be prioritised? =
This
> > has been something of a recent thread on the IDR list and, although =
you
> > are raising interesting questions, I don't believe we have any way =
to draw
> > a line unless someone reports real problems that are not caused by
> > implementation choices, yet we are required (by the IESG) to supply
> > defaults for configurable parameters.
>=20
> Section 6 is the =B3Operational Considerations=B2 section, where I =
expect you
> to provide operational considerations.  It sounds like you=B9re saying =
we
> need deployment (not just testing) experience so that clear guidance =
can
> be given and that you=B9re otherwise putting numbers in there just =
because
> you have to, am I interpreting this correctly?

I think so.
We can only start to guess at this stage.
Certainly there are things you can do to be "safe". But they might not =
be
optimal.

This remains one of the problems with an Operational Considerations =
section for
a protocol extension where it is unclear what the impact will be.

> > Why "MAY" use a dedicated RR rather than "SHOULD"? Because there =
really
> > doesn't appear to be any indication that this is a problem in all =
networks
with
> > all BGP implementations.

So the bottom line is that I haven't made any changes for this.
If you want to suggest some weasel words about how to monitor your =
deployment
and what to look for that might be a symptom of stuff going wrong, and =
then what
to do about it, we can surely cut and paste your text.

> >> 6.2.2 (Fault Management). "If an implementation of BGP-LS detects a
> >> malformed attribute, then it SHOULD use the 'Attribute Discard' =
action.."
> >> Doesn't this mean that the information may be useless, completely =
missing,
> >> or in the best case incomplete?  Aren't we better off just =
resetting the
> >> session or at least requesting a route refresh?
> >
> > I don't think we are assuming corruption. So the malformed attribute
> > comes as the result of an implementation difference or a bug at the
> > sender.
>=20
> That would still result in the receiver not having the information.  =
The
> cause doesn=B9t seem to matter in this case, the end result does.

Absolutely.
So you have to choose between having most of the info from the network =
minus
some pieces that you couldn't parse, or resetting the session and having =
no
information about the network.
Perhaps we should be "raising an alert to the operator" when this =
happens? (rate
limits may apply)

> > Requesting a refresh runs a significant risk of simply thrashing the
> > advertisement since each time it is sent it will contain the same
> > malformed attribute. This problem is considerably worsened if the
> > session is reset because then we thrash the whole session.
>=20
> Of course.
>=20
> I was trying (and didn=B9t do a good job) to suggest that if we had
> isolation (as in carrying the BGP-LS in a separate session/RR
> infrastructure), then a better job could be done at not only isolating
> from failure but also at recovering information so that both =
application
> could work better.

So I maintain that you can't recover. All you can do is start again, =
which is
worse than helpful.

Certainly, if you choose to reset the session then using a separate =
session for
different things would be a wise idea. But if you do as we suggest then =
I don'
think it matters because you don't perturb the "normal" BGP work.

> >> 3.3.2.2 (MPLS Protocol Mask TLV)
[snip]
> Now that I revisit this point, I think that the new text should be
> something like this:
>=20
>    The =8CMPLS Protocol Mask=B9 TLV SHOULD only be used with
>    originators that have local link insight, like for example
>    Protocol-IDs 'Static' or 'Direct' as per Table 2.
>=20
> That way, if others come up in the future we=B9re covered and not =
dependent
> on a Table.

OK. I reworked this text.

> >> Section 8 (Security Considerations) "The principal attack a =
consumer
> >> may apply is to attempt to start multiple sessions either =
sequentially or
> >> simultaneously."
> >> Isn't this an attack that any other node can try?  Why limit the=20
> >> discussion only to consumers?
> >
> > I think you have to be a recognised peer for this attack to have any
> > significant value that is specific to *this* document.
>=20
> I meant that a BGP Speaker could also start multiple sessions with a
> consumer, for example.

Hmmm. OK.
I suspect that if a core router is compromised to the extent that it =
attacks the
BGP-LS consumers, we have *are* worse problems to contemplate.

> >> Curious question:  When encoding a "normal" size node using BGP-LS,
> >> what is the resulting size of the UPDATE?
> >
> >I'll leave this as an exercise for the reader.
>=20
> Thanks! :-(
>=20
> I was mostly wondering if the information is anywhere close to 4k or =
not.
> The implementation report doesn=B9t say anything either. :-(

OK. I see your point. The problem presumably exists for the IGPs as well =
(maybe
more for OSPF than for ISIS).

Anyone in the DR WG want to do the math?

Thanks,
Adrian


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From: "Alvaro Retana (aretana)" <aretana@cisco.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "idr@ietf.org" <idr@ietf.org>
Thread-Topic: [Idr] Changes to draft-ietf-idr-ls-distribution
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On 10/4/15, 4:57 PM, "Idr on behalf of Adrian Farrel"
<idr-bounces@ietf.org on behalf of adrian@olddog.co.uk> wrote:

>- Section 3.3.2.2. Wordsmithing.

There=B9s a superfluous =B3>=B2 in there...


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From: "Alvaro Retana (aretana)" <aretana@cisco.com>
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On 10/4/15, 4:57 PM, "Adrian Farrel" <adrian@olddog.co.uk> wrote:

Adrian:

>Here is a better reply snipped still further.

Thanks again for pushing this along..  I=B9m putting the draft on the next
Telechat.

Alvaro.


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From: Jeffrey Haas <jhaas@pfrc.org>
To: Lucy yong <lucy.yong@huawei.com>
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References: <D0CC3567-AE4A-4770-B31A-0BFEB72CA577@alcatel-lucent.com> <2691CE0099834E4A9C5044EEC662BB9D571F7224@dfweml701-chm> <90EE5875-ED67-45CD-88AF-D5E8ECDE1774@alcatel-lucent.com> <2691CE0099834E4A9C5044EEC662BB9D571F843E@dfweml701-chm>
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Subject: Re: [Idr] New draft - Flowspec Path Redirect
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On Mon, Sep 28, 2015 at 05:18:43PM +0000, Lucy yong wrote:
> There are active/existing/working vendor implementations of draft-ietf-idr-flowspec-redirect-ip and some SP’s are already using this.
> At the same time the a redirect-ip and a PATH_ID are totally different aspects, even though both are communities…
> [Lucy] if redirect via an IP tunnel, I don’t see much difference for redirect action. BGP can validate the tunnel reachability. If the path identified by PATH_ID is implemented by different technologies and/or protocols, you are right, the aspect can be very different. However, the difference is not at redirect action itself; it is how BGP control plane can validate the path existence on the data plane and control them. If BGP can do that properly, we can apply such path for a router or a flow spec.

This is also one of my two major concerns about this draft.  The path-id is
not only completely arbitrary in the current draft, but also opaque.  This
leads to issues with validation, but it also leads to the question about
synchronization or coordination of path-ids at various routers in the AS.

Are there requirements to synchronize the path-ids?
Are the path-ids intended to have "anycast" type properties?

The second rather large issue is something I'll go into more detail in my
response for draft-eddy-idr-flowspec-exp:  The authors of the redirect-ip
draft ran into issues fairly early on with regard to the coordination of
multiple redirect capabilities for a flowspec route.  You can get a sense of
some of the complexity by examining the rules in that draft.

Any new drafts covering traffic redirection *MUST* document how they operate
with regard to other redirection mechanisms.  This is required not only for
interoperability, but also to be clear about the precedence of forwarding
behaviors when multiple such behaviors are present.

One question I have is whether this behavior is being sought because there
is the impression that arbitrary tunneling is not currently possible.  It's
generally understood in the redirect-ip document that the referenced address
may be at the end of a tunnel.  That tunnel is intended to be discovered by
the BGP speaker in a fashion similar to resolving L3VPN nexthop addresses.
If this mechanism isn't seen to be quite sufficient, perhaps utilizing an
additional flag bit in the Reserved field may help with some additional
semantics?

-- Jeff


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Subject: Re: [Idr] flowspec enhancements
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Wes,

On Tue, Sep 15, 2015 at 01:39:29PM -0400, Wesley Eddy wrote:
> Hello, we've been working on a few enhancements to the BGP flowspec
> capabilities that may be of interest:
> 
> https://tools.ietf.org/html/draft-eddy-idr-flowspec-exp-00
> 
> There are several ideas described in the document that could be
> factored out from one another, but the basic idea is to increase
> the power of flowspec, mainly for its DDoS mitigation purposes.

This I-D serves as an interesting melange of ideas.  I suspect at some later
point you might find it useful to separate the individual changes into
distinct I-Ds.

> Specifically, the suggested enhancements include:
> - add packet rate limitations as an action (not just bitrate)

This one is generally useful and would be a pretty trivial extension.

> - add support for filtering of tunneled traffic (unencrypted)

This is problematic in several interesting ways, some of them implementation
specific.  But perhaps that really suggests a widening of the deployment
domain.

BGP Flowspec is typically deployed in scenarios to effectively program
firewall filtering on BGP speakers.  Pragmatically, this has meant some
level of restricting the operations to filters that can be applied at near
wire-rate and thus we're not always getting a full set of potential
filtering operations that may be available on devices that work at different
scale.  

There's also the second issue in that such directly indexed forms of
filtering may limit the deployment to cases where flowspec routes are
directly advertised and not propagated to other BGP speakers.  This is likey
because when tunneling technologies may change encap/decap on a hop-by-hop
basis, it becomes difficult to adjust the filters to be fully generic using
distribution via a Route Reflector - a common deployment scenario for
Flowspec.  

Of course, these constraints become different once we're talking about
non-traditional BGP speakers such as IPS systems, etc.

> - identifying flow specifications for tracking and communication
>   between providers

You may be aware that some tools vendors already permit DDoS mitigation
signature distribution.  I'd suggest speaking to some of them about the
popularity of the service.

> - cryptographically signing flowspecs

You note the major problems with using BGPSEC for securing Flowspec.  Your
second biggest challenge would be to get some sort of changes in BGPSEC for
covering flowspec.  

> - supporting a more surgical re-route to scrubbing centers
> - providing feedback about flowspecs to the source
> 
> If any of these are interesting to folks, we'll appreciate your
> feedback, comments, questions, etc.  Some are more difficult than
> others.

Lots of interesting ideas, and some that probably should be peeled off and
submitted individually.

-- Jeff


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From nobody Mon Oct  5 12:30:54 2015
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From: Jeffrey Haas <jhaas@pfrc.org>
To: Adrian Farrel <adrian@olddog.co.uk>
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Subject: Re: [Idr] Alvaro's AD Comments on draft-ietf-idr-ls-distribution
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Adrian,

On Sun, Oct 04, 2015 at 09:57:17PM +0100, Adrian Farrel wrote:
> > > Why 200? Not sure where that came from. I have no evidence that 200
> > > is a problem and given that IDR has done quite a bit of implementation
> > > and interop without anyone screaming, I assume this is OK.
> > >https://www.ietf.org/id/draft-ietf-idr-ls-distribution-impl-04.txt doesn't
> > >mention any problems. Are you aware of implementations where this is a
> > >problem?
> > 
> > No, but implementation and interop (most likely in a controlled
> > environment) is very different than operation in the wild.  But I am sure
> > that you (and everyone else listed as an author) obviously knows that.
> 
> I think it is tremendously difficult to work out / predict what a reasonable
> default value is for operation in  real network. I'd be happy to not give any
> guidance because of that, but history says that if we don't suggest a default we
> will be caned by the IESG. You can't win :-)
> 
> We have picked a value we believe will not be a problem. But it is art not
> science.

It is very much art rather than science.  The properties we are looking for
include:
- Distribute LS changes "fast enough"
- Don't propagate thrash; i.e. don't be too fast for some stuff.
- Remember that the cost in BGP is often borne by the receiver rather than
  the sender.

Constants will almost always be wrong at some point in time, so best we can
suggest is an initial value that will eventually be ignored by posterity.

> > >> 6.2.2 (Fault Management). "If an implementation of BGP-LS detects a
> > >> malformed attribute, then it SHOULD use the 'Attribute Discard' action.."
> > >> Doesn't this mean that the information may be useless, completely missing,
> > >> or in the best case incomplete?  Aren't we better off just resetting the
> > >> session or at least requesting a route refresh?
> > >
> > > I don't think we are assuming corruption. So the malformed attribute
> > > comes as the result of an implementation difference or a bug at the
> > > sender.
> > 
> > That would still result in the receiver not having the information.  The
> > cause doesn¹t seem to matter in this case, the end result does.
> 
> Absolutely.
> So you have to choose between having most of the info from the network minus
> some pieces that you couldn't parse, or resetting the session and having no
> information about the network.
> Perhaps we should be "raising an alert to the operator" when this happens? (rate
> limits may apply)

Resetting the session is almost always the wrong thing to do.  Thankfully
the desired behaviors, including operational, are already covered in RFC 7606:

:   Because of these potential issues, a BGP speaker must provide
:   debugging facilities to permit issues caused by a malformed attribute
:   to be diagnosed.  At a minimum, such facilities must include logging
:   an error listing the NLRI involved and containing the entire
:   malformed UPDATE message when such an attribute is detected.  The
:   malformed UPDATE message should be analyzed, and the root cause
:   should be investigated.

> > I was mostly wondering if the information is anywhere close to 4k or not.
> > The implementation report doesn¹t say anything either. :-(
> 
> OK. I see your point. The problem presumably exists for the IGPs as well (maybe
> more for OSPF than for ISIS).
> 
> Anyone in the DR WG want to do the math?

Not particularly.  I think this is a case where we'd really want the IGP
experts to give us ideas of max message sizes and then we'd double-check
BGP-LS.

That said, draft-ietf-idr-bgp-extended-messages is intended to help with
these sorts of situations.  (Although that's not broadly implemented yet.)

-- Jeff


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From: "Alvaro Retana (aretana)" <aretana@cisco.com>
To: Jeffrey Haas <jhaas@pfrc.org>, Adrian Farrel <adrian@olddog.co.uk>
Thread-Topic: [Idr] Alvaro's AD Comments on draft-ietf-idr-ls-distribution
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From nobody Mon Oct  5 13:33:23 2015
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From: Lucy yong <lucy.yong@huawei.com>
To: Jeffrey Haas <jhaas@pfrc.org>
Thread-Topic: [Idr] New draft - Flowspec Path Redirect
Thread-Index: AQHQ/57Lbe2+ZSbC0EiTPnGIEju5O55dSKng
Date: Mon, 5 Oct 2015 20:33:01 +0000
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Cc: "idr@ietf.org" <idr@ietf.org>, "VAN DE VELDE, Gunter \(Gunter\)" <gunter.van_de_velde@alcatel-lucent.com>
Subject: Re: [Idr] New draft - Flowspec Path Redirect
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Subject: [Idr] Protocol Action: 'Autonomous System Migration Mechanisms and Their Effects on the BGP AS_PATH Attribute' to Proposed Standard (draft-ietf-idr-as-migration-06.txt)
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The IESG has approved the following document:
- 'Autonomous System Migration Mechanisms and Their Effects on the BGP
   AS_PATH Attribute'
  (draft-ietf-idr-as-migration-06.txt) as Proposed Standard

This document is the product of the Inter-Domain Routing Working Group.

The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah
Brungard.

A URL of this Internet Draft is:
https://datatracker.ietf.org/doc/draft-ietf-idr-as-migration/





Technical Summary

   This draft discusses some existing commonly-used BGP mechanisms for
   ASN migration that are not formally part of the BGP4 protocol
   specification.  It is necessary to document these de facto standards
   to ensure that they are properly supported in future BGP protocol
   work.


Working Group Summary

  Good Working Group Consensus occurred during WG Review. 


Document Quality

 Implementations and deployments already exist -- that was what prompted this document.  
 A significant number of vendors have shipping implementations.  The WG, and vendors specifically 
 did a thorough review.

Personnel

Document Shepherd: Sure Hares
AD: Alvaro Retana


From nobody Tue Oct  6 12:01:57 2015
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Subject: Re: [Idr] Alvaro's AD Comments on draft-ietf-idr-ls-distribution
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Jeff, Alvaro, and Adrian:=20

I will check with the 2nd implementer of
draft-ietf-idr-bgp-extended-messages to see if he has implemented the =
draft.
The implementation was contingent on the early allocation.=20

Sue=20

-----Original Message-----
From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Alvaro Retana =
(aretana)
Sent: Monday, October 05, 2015 3:53 PM
To: Jeffrey Haas; Adrian Farrel
Cc: idr@ietf.org
Subject: Re: [Idr] Alvaro's AD Comments on =
draft-ietf-idr-ls-distribution

On 10/5/15, 3:34 PM, "Jeffrey Haas" <jhaas@pfrc.org> wrote:

. . .
>>
>>> I was mostly wondering if the information is anywhere close to 4k or =

>>>not.
>>> The implementation report doesn=B9t say anything either. :-(
>>OK. I see your point. The problem presumably exists for the IGPs as=20
>>well (maybe more for OSPF than for ISIS).
>>Anyone in the DR WG want to do the math?
>
>Not particularly.  I think this is a case where we'd really want the=20
>IGP experts to give us ideas of max message sizes and then we'd=20
>double-check BGP-LS.
>
>That said, draft-ietf-idr-bgp-extended-messages is intended to help=20
>with these sorts of situations.  (Although that's not broadly=20
>implemented yet.)

Exactly!  If we're anywhere close (I don't think so) then we might need =
the
extended-messages faster..

Alvaro.

_______________________________________________
Idr mailing list
Idr@ietf.org
https://www.ietf.org/mailman/listinfo/idr


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Adrian :

The next time you edit draft-ietf-idr-ls-distribution in section =
3.3.2.2.

Typo:=20
/>Generation of the MPLS Protocol Mask/Generation of MPLS Protocol Mask/

Sue Hares=20

-----Original Message-----
From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Alvaro Retana =
(aretana)
Sent: Monday, October 05, 2015 3:53 PM
To: Jeffrey Haas; Adrian Farrel
Cc: idr@ietf.org
Subject: Re: [Idr] Alvaro's AD Comments on =
draft-ietf-idr-ls-distribution

On 10/5/15, 3:34 PM, "Jeffrey Haas" <jhaas@pfrc.org> wrote:

. . .
>>
>>> I was mostly wondering if the information is anywhere close to 4k or =

>>>not.
>>> The implementation report doesn=B9t say anything either. :-(
>>OK. I see your point. The problem presumably exists for the IGPs as=20
>>well (maybe more for OSPF than for ISIS).
>>Anyone in the DR WG want to do the math?
>
>Not particularly.  I think this is a case where we'd really want the=20
>IGP experts to give us ideas of max message sizes and then we'd=20
>double-check BGP-LS.
>
>That said, draft-ietf-idr-bgp-extended-messages is intended to help=20
>with these sorts of situations.  (Although that's not broadly=20
>implemented yet.)

Exactly!  If we're anywhere close (I don't think so) then we might need =
the
extended-messages faster..

Alvaro.

_______________________________________________
Idr mailing list
Idr@ietf.org
https://www.ietf.org/mailman/listinfo/idr


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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Inter-Domain Routing Working Group of the IETF.

        Title           : Advertisement of Multiple Paths in BGP
        Authors         : Daniel Walton
                          Alvaro Retana
                          Enke Chen
                          John Scudder
	Filename        : draft-ietf-idr-add-paths-11.txt
	Pages           : 9
	Date            : 2015-10-07

Abstract:
   This document defines a BGP extension that allows the advertisement
   of multiple paths for the same address prefix without the new paths
   implicitly replacing any previous ones.  The essence of the extension
   is that each path is identified by a path identifier in addition to
   the address prefix.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-idr-add-paths/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-idr-add-paths-11

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-add-paths-11


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

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ftp://ftp.ietf.org/internet-drafts/


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From: "Alvaro Retana (aretana)" <aretana@cisco.com>
To: Mach Chen <mach.chen@huawei.com>, "rtg-ads@tools.ietf.org" <rtg-ads@tools.ietf.org>
Thread-Topic: [RTG-DIR] RtgDir review: draft-ietf-idr-add-path-10.txt
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Subject: Re: [Idr] [RTG-DIR] RtgDir review: draft-ietf-idr-add-path-10.txt
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On 5/7/15, 8:52 AM, "Mach Chen" <mach.chen@huawei.com> wrote:

<Wearing author hat.>

Mach:

Hi!

I just published an update that should address your comments.  Please take
a look.

Thanks!

Alvaro.

>Hello,=20
>
>I have been selected as the Routing Directorate reviewer for this draft.
>The Routing Directorate seeks to review all routing or routing-related
>drafts as they pass through IETF last call and IESG review, and sometimes
>on special request. The purpose of the review is to provide assistance to
>the Routing ADs. For more information about the Routing Directorate,
>please see http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir
>
>Although these comments are primarily for the use of the Routing ADs, it
>would be helpful if you could consider them along with any other IETF
>Last Call comments that you receive, and strive to resolve them through
>discussion or by updating the draft.
>
>Document: draft-ietf-idr-add-path-10.txt
>Reviewer: Mach Chen
>Review Date: 2015/05/07
>IETF LC End Date: Not known
>Intended Status: Standards Track
>
>Summary:
> This document is basically ready for publication, but has nits that
>should be considered prior to publication.
>
>Comments:=20
> The document is well written and easy to read.
>=20
>Major Issues:=20
> No major issues found.
>
>Minor Issues:=20
> No minor issues found.
>
>Nits:
>
>Abstract and Introduction
>
>s/In this document we propose/This document defines
>
>
>Introduction
>
>s/"Send-update Process"/Send-update Process, to align with the usage as
>in RFC4271.
>
>Section 4
>
>"Send/Receive:
>
>         This field indicates whether the sender is (a) able to receive
>         multiple paths from its peer (value 1), (b) able to send
>         multiple paths to its peer (value 2), or (c) both (value 3) for
>         the <AFI, SAFI>."
>
>How about other values and what's the process when received value other
>than 1, 2 and 3?
>
>
>Section 5
>
>OLD:
>" A BGP speaker MUST follow the existing procedures in generating an
>   UPDATE message for a particular <AFI, SAFI> to a peer unless the
>BGP..."
>
>NEW:
>"A BGP speaker MUST follow the procedures defined in [RFC4271] in
>generating an
>   UPDATE message for a particular <AFI, SAFI> to a peer unless the
>BGP..."
>"
>
>Best regards,
>Mach


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Subject: [Idr] I-D Action: draft-ietf-idr-route-oscillation-stop-01.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Inter-Domain Routing Working Group of the IETF.

        Title           : BGP Persistent Route Oscillation Solutions
        Authors         : Daniel Walton
                          Alvaro Retana
                          Enke Chen
                          John Scudder
	Filename        : draft-ietf-idr-route-oscillation-stop-01.txt
	Pages           : 9
	Date            : 2015-10-07

Abstract:
   In this document we present two sets of paths for an address prefix
   that can be advertised by a BGP route reflector or confederation ASBR
   to eliminate the MED-induced route oscillations in a network.  The
   first set involves all the available paths, and would achieve the
   same routing consistency as the full IBGP mesh.  The second set,
   which is a subset of the first one, involves the neighbor-AS based
   Group Best Paths, and would be sufficient to eliminate the MED-
   induced route oscillations (subject to certain commonly adopted
   topological constrains).


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-idr-route-oscillation-stop/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-idr-route-oscillation-stop-01

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-route-oscillation-stop-01


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


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From: "Alvaro Retana (aretana)" <aretana@cisco.com>
To: Antoni Przygienda <antoni.przygienda@ericsson.com>, "rtg-ads@tools.ietf.org" <rtg-ads@tools.ietf.org>
Thread-Topic: [Idr] RtgDir review: draft-ietf-idr-route-oscillation-stop-00
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Subject: Re: [Idr] RtgDir review: draft-ietf-idr-route-oscillation-stop-00
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--_000_D1A513CBB846Caretanaciscocom_
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On 5/26/15, 9:36 PM, "Antoni Przygienda" <antoni.przygienda@ericsson.com<ma=
ilto:antoni.przygienda@ericsson.com>> wrote:

[Author hat on.]

Tony:

Hi!

It took me a while to get to this..

I just posted an update with clarifications that I think address your point=
s.   Responses to your comments inline.   I'm just leaving in pieces where =
we have additional comments.

Thanks!

Alvaro.




Network Working Group                                          D. Walton
Internet-Draft                                          Cumulus Networks
Intended status: Standards Track                               A. Retana

PRZ> I would like to question whether this is a standards Track document ?
PRZ> It looks to me more BCP than Standards track. It relies on peers
PRZ> supporting on optional capability and then it only SHOULDs the
PRZ> intended behavior. In fact there is not a single normative MUST in
PRZ> the whole document.

I don't think you don=92t need MUSTs, or even any rfc2119 language for a do=
cument to be a standard.

Personally I don=92t think this is a BCP; it basically specifies how the ME=
D oscillations can be resolved..so I think it should remain on the Standard=
s Track.

Having said that, if the chairs/AD have any guidance they want us to follow=
, then we will.

. . .
   These paths can be advertised using the mechanism described in ADD-
   PATH [I-D.ietf-idr-add-paths] for advertising multiple paths.

PRZ> I suggest to indicate in the document that all routers in AD MUST be
PRZ> configured to behave consistently when comparing MEDs
PRZ> (i.e. always-compare-med, missing-as-worst and so on need to be
PRZ> consistent).
PRZ> There seems to me a hidden assumption
PRZ> in the document
PRZ> albeit likely obvious for the skilled in the art that
PRZ> always-compare-med is used here (and in fact the overall behavior
PRZ> simulates deterministic-MED?) but IMO it must be mentioned what the
PRZ> assumptions are. Especially for routers that want to the RRC but
PRZ> do NOT support add-path e.g.
PRZ> that they are sometimes employed to fix some of
PRZ> those issues and need to be considered.

>From the discussion in rfc3345 (where the oscillations are described), alwa=
ys-compare-med is actually ruled out because it defeats the purpose of sett=
ing the MED.  Missing-as-worst is the default from rfc4271..so we=92re not =
making any assumptions of what knobs are configured beyond the default.

OTOH, yes, deterministic-MED is pretty much what is described in section 4 =
(Advertise the Group Best Paths) as part of the solution.

I added some clarification on assumptions.

. . .


4.  Advertise the Group Best Paths

   The term neighbor-AS for a route refers to the neighboring AS from
   which the route was received.  The calculation of the neighbor-AS is
   specified in Sect. 9.1.2.2 of [RFC4271], and Section 7.2 of
   [RFC5065].  By definition the MED is comparable only among routes
   with the same neighbor-AS.

PRZ> We all know this can be violated by vendor specific configs and
PRZ> merits mentioning as reference to 4456 again since this is a very
PRZ> 'practical deployment'

It must be late..I=92m missing the reference to 4456 when talking about cha=
nges in the default behavior.

PRZ> targeted draft. In fact this draft should reference how two best
PRZ> routes to same prefix via two different ASes (two group best paths
PRZ> to same prefix) should be resolved or ECMP=92ed.

I know that many implementations support that type of ECMP.  However, that =
is not an issue specific to this draft or even ADD-PATH.

If we (the WG) ever wanted to document that internal behavior (similar to j=
ust regular ECMP) it should be in a separate draft.

There is no change to the resolution (finding the bestpath) of two group be=
st paths.


. . .

 PRZ> This needs specification WHAT is advertised to the peers not supporti=
ng
PRZ> add-path? if we follow today's behavior, it would be any
PRZ> of the best-group paths broken on IGP metric.
PRZ> I think it is worth mentioning that if ANY of the involved RRs does
PRZ> not support add-path, the solution COULD loop again using IGP as tie-b=
reaker
PRZ> for routes from different ASes.
PRZ>
PRZ> Or is one of the restrictions this draft suggests
PRZ> that all RRs MUST be
PRZ> add-path capable ?

Yes, we=92re assuming that the solution can be deployed because all routers=
 that need to support ADD-PATH. I think that assumption is clear in the tex=
t as it mentions several times that the solution is based on it.  We didn=
=92t look at partial deployments.

. . .

--_000_D1A513CBB846Caretanaciscocom_
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ly: Calibri, sans-serif;">
<div>On 5/26/15, 9:36 PM, &quot;Antoni Przygienda&quot; &lt;<a href=3D"mail=
to:antoni.przygienda@ericsson.com">antoni.przygienda@ericsson.com</a>&gt; w=
rote:</div>
<div><br>
</div>
<div>[Author hat on.]</div>
<div><br>
</div>
<div>Tony:</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div>Hi!</div>
</span>
<div><br>
</div>
<div>It took me a while to get to this..</div>
<div><br>
</div>
<div>I just posted an update with clarifications that I think address your =
points. &nbsp; Responses to your comments inline. &nbsp; I'm just leaving i=
n pieces where we have additional comments.</div>
<div><br>
</div>
<div>Thanks!</div>
<div><br>
</div>
<div>Alvaro.</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
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--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]-->
<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p><span style=3D"font-family: Fixedsys; font-size: 8pt;">Network Working G=
roup&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp; D. Walton</span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">Internet-Draft&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cumulus =
Networks</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">Intended status: Standards Track&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; A. Retana<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; I would like to question w=
hether this is a standards Track document ?
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; It looks to me more BCP th=
an Standards track. It relies on peers
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; supporting on optional cap=
ability and then it only SHOULDs the
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; intended behavior. In fact=
 there is not a single normative MUST in
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; the whole document.</span>=
</p>
</div>
</div>
</blockquote>
</span>
<div><br>
</div>
<div>I don't think you don=92t need MUSTs, or even any rfc2119 language for=
 a document to be a standard.</div>
<div><br>
</div>
<div>Personally I don=92t think this is a BCP; it basically specifies how t=
he MED oscillations can be resolved..so I think it should remain on the Sta=
ndards Track.</div>
<div><br>
</div>
<div>Having said that, if the chairs/AD have any guidance they want us to f=
ollow, then we will.</div>
<div><br>
</div>
<div>. . .</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div>
<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">&nbsp;&nbsp; These paths can be advertised u=
sing the mechanism described in ADD-</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">&nbsp;&nbsp; PATH [I-D.ietf-idr-add-paths] f=
or advertising multiple paths.</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; I suggest to indicate in t=
he document that all routers in AD MUST be
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; configured to behave consi=
stently when comparing MEDs
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; (i.e. always-compare-med, =
missing-as-worst and so on need to be
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; consistent).
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; There seems to me a hidden=
 assumption
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; in the document</span><spa=
n style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; albeit likely obvious for =
the skilled in the art that
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; always-compare-med is used=
 here (and in fact the overall behavior
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; simulates deterministic-ME=
D?) but IMO it must be mentioned what the
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; assumptions are. Especiall=
y for routers that want to the RRC but
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; do NOT support add-path e.=
g.
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; that they are sometimes em=
ployed to fix some of
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; those issues and need to b=
e considered.</span></p>
</div>
</div>
</div>
</blockquote>
</span>
<div><br>
</div>
<div>From the discussion in rfc3345 (where the oscillations are described),=
 always-compare-med is actually ruled out because it defeats the purpose of=
 setting the MED. &nbsp;Missing-as-worst is the default from rfc4271..so we=
=92re not making any assumptions of what
 knobs are configured beyond the default.</div>
<div><br>
</div>
<div>OTOH, yes, deterministic-MED is pretty much what is described in secti=
on 4 (Advertise the Group Best Paths) as part of the solution.</div>
<div><br>
</div>
<div>I added some clarification on assumptions.</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal" style=3D"text-autospace:none">. . .</p>
</div>
</div>
</span>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div>
<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red"></span><span style=3D"color:red"><=
o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">4.&nbsp; Advertise the Group Best Paths</spa=
n><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">&nbsp;&nbsp; The term neighbor-AS for a rout=
e refers to the neighboring AS from</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">&nbsp;&nbsp; which the route was received.&n=
bsp; The calculation of the neighbor-AS is</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">&nbsp;&nbsp; specified in Sect. 9.1.2.2 of [=
RFC4271], and Section 7.2 of</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">&nbsp;&nbsp; [RFC5065].&nbsp; By definition =
the MED is comparable only among routes</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">&nbsp;&nbsp; with the same neighbor-AS.
</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys">&nbsp;&nbsp;&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; We all know this can be vi=
olated by vendor specific configs and</span><span style=3D"color:red"><o:p>=
</o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; merits mentioning as refer=
ence to 4456 again since this is a very
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; 'practical deployment'</sp=
an></p>
</div>
</div>
</div>
</blockquote>
</span>
<div><br>
</div>
<div>It must be late..I=92m missing the reference to 4456 when talking abou=
t changes in the default behavior.</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div>
<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red"></span><span style=3D"color:red"><=
o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; targeted draft.&nbsp;In fa=
ct this draft should reference how two best
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; routes to same prefix via =
two different ASes (two group best paths
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; to same prefix) should be =
resolved or ECMP=92ed. &nbsp;</span></p>
</div>
</div>
</div>
</blockquote>
</span>
<div><br>
</div>
<div>I know that many implementations support that type of ECMP. &nbsp;Howe=
ver, that is not an issue specific to this draft or even ADD-PATH.</div>
<div><br>
</div>
<div>If we (the WG) ever wanted to document that internal behavior (similar=
 to just regular ECMP) it should be in a separate draft.</div>
<div><br>
</div>
<div>There is no change to the resolution (finding the bestpath) of two gro=
up best paths.</div>
<div><br>
</div>
<div><br>
</div>
<div>. . .</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div>
<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"color:r=
ed"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-fa=
mily: Fixedsys; font-size: 8pt;"><br>
</span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-fa=
mily: Fixedsys; font-size: 8pt;">&nbsp;</span><span style=3D"color: red; fo=
nt-family: Fixedsys; font-size: 8pt;">PRZ&gt; This needs specification WHAT=
 is advertised to the peers not supporting</span></p>
</div>
</div>
</div>
</blockquote>
</span><span id=3D"OLK_SRC_BODY_SECTION">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; add-path? if we follow tod=
ay's behavior, it would be any
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; of the best-group paths br=
oken on IGP metric.
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; I think it is worth mentio=
ning that if ANY of the involved RRs does</span><span style=3D"color:red"><=
o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; not support add-path, the =
solution COULD loop again using IGP as tie-breaker</span><span style=3D"col=
or:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; for routes from different =
ASes.
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt;</span><span style=3D"color=
:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; Or is one of the restricti=
ons this draft suggests
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; that all RRs MUST be
</span><span style=3D"color:red"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; add-path capable ?</span><=
/p>
</div>
</div>
</blockquote>
</span>
<div><br>
</div>
<div>Yes, we=92re assuming that the solution can be deployed because all ro=
uters that need to support ADD-PATH. I think that assumption is clear in th=
e text as it mentions several times that the solution is based on it. &nbsp=
;We didn=92t look at partial deployments.
 &nbsp;&nbsp;</div>
<div><br>
</div>
<div>. . .</div>
</body>
</html>

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From: Antoni Przygienda <antoni.przygienda@ericsson.com>
To: "Alvaro Retana (aretana)" <aretana@cisco.com>, "rtg-ads@tools.ietf.org" <rtg-ads@tools.ietf.org>
Thread-Topic: [Idr] RtgDir review: draft-ietf-idr-route-oscillation-stop-00
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Date: Wed, 7 Oct 2015 21:03:58 +0000
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Subject: Re: [Idr] RtgDir review: draft-ietf-idr-route-oscillation-stop-00
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--_000_2E4BB27CAB87BF43B4207C0E55860F180EADF50Ceusaamb103erics_
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Uff, lost all the context after 5 months of having been on it.  Lez take it=
 to the beer bar @ yokohama and you enlighten me. Some of the stuff you wri=
te I agree with, some I lost context && need reconstruction. I only hope th=
at meantime no one shipped an 'almost-never-not-compare-med'  knob to compl=
icate discussion further ;-) ...

--- tony


There are basically two types of people. People who accomplish things, and =
people who claim to have accomplished things. The first group is less crowd=
ed.<http://www.brainyquote.com/quotes/quotes/m/marktwain393535.html>
~~~ Mark Twain<http://www.brainyquote.com/quotes/quotes/m/marktwain393535.h=
tml>

From: Alvaro Retana (aretana) [mailto:aretana@cisco.com]
Sent: Wednesday, October 07, 2015 1:42 PM
To: Antoni Przygienda; rtg-ads@tools.ietf.org
Cc: rtg-dir@ietf.org; draft-ietf-idr-route-oscillation-stop.all@tools.ietf.=
org; idr wg (idr@ietf.org)
Subject: Re: [Idr] RtgDir review: draft-ietf-idr-route-oscillation-stop-00

On 5/26/15, 9:36 PM, "Antoni Przygienda" <antoni.przygienda@ericsson.com<ma=
ilto:antoni.przygienda@ericsson.com>> wrote:

[Author hat on.]

Tony:

Hi!

It took me a while to get to this..

I just posted an update with clarifications that I think address your point=
s.   Responses to your comments inline.   I'm just leaving in pieces where =
we have additional comments.

Thanks!

Alvaro.




Network Working Group                                          D. Walton
Internet-Draft                                          Cumulus Networks
Intended status: Standards Track                               A. Retana

PRZ> I would like to question whether this is a standards Track document ?
PRZ> It looks to me more BCP than Standards track. It relies on peers
PRZ> supporting on optional capability and then it only SHOULDs the
PRZ> intended behavior. In fact there is not a single normative MUST in
PRZ> the whole document.

I don't think you don't need MUSTs, or even any rfc2119 language for a docu=
ment to be a standard.

Personally I don't think this is a BCP; it basically specifies how the MED =
oscillations can be resolved..so I think it should remain on the Standards =
Track.

Having said that, if the chairs/AD have any guidance they want us to follow=
, then we will.

. . .
   These paths can be advertised using the mechanism described in ADD-
   PATH [I-D.ietf-idr-add-paths] for advertising multiple paths.

PRZ> I suggest to indicate in the document that all routers in AD MUST be
PRZ> configured to behave consistently when comparing MEDs
PRZ> (i.e. always-compare-med, missing-as-worst and so on need to be
PRZ> consistent).
PRZ> There seems to me a hidden assumption
PRZ> in the document
PRZ> albeit likely obvious for the skilled in the art that
PRZ> always-compare-med is used here (and in fact the overall behavior
PRZ> simulates deterministic-MED?) but IMO it must be mentioned what the
PRZ> assumptions are. Especially for routers that want to the RRC but
PRZ> do NOT support add-path e.g.
PRZ> that they are sometimes employed to fix some of
PRZ> those issues and need to be considered.

>From the discussion in rfc3345 (where the oscillations are described), alwa=
ys-compare-med is actually ruled out because it defeats the purpose of sett=
ing the MED.  Missing-as-worst is the default from rfc4271..so we're not ma=
king any assumptions of what knobs are configured beyond the default.

OTOH, yes, deterministic-MED is pretty much what is described in section 4 =
(Advertise the Group Best Paths) as part of the solution.

I added some clarification on assumptions.

. . .


4.  Advertise the Group Best Paths

   The term neighbor-AS for a route refers to the neighboring AS from
   which the route was received.  The calculation of the neighbor-AS is
   specified in Sect. 9.1.2.2 of [RFC4271], and Section 7.2 of
   [RFC5065].  By definition the MED is comparable only among routes
   with the same neighbor-AS.

PRZ> We all know this can be violated by vendor specific configs and
PRZ> merits mentioning as reference to 4456 again since this is a very
PRZ> 'practical deployment'

It must be late..I'm missing the reference to 4456 when talking about chang=
es in the default behavior.

PRZ> targeted draft. In fact this draft should reference how two best
PRZ> routes to same prefix via two different ASes (two group best paths
PRZ> to same prefix) should be resolved or ECMP'ed.

I know that many implementations support that type of ECMP.  However, that =
is not an issue specific to this draft or even ADD-PATH.

If we (the WG) ever wanted to document that internal behavior (similar to j=
ust regular ECMP) it should be in a separate draft.

There is no change to the resolution (finding the bestpath) of two group be=
st paths.


. . .

 PRZ> This needs specification WHAT is advertised to the peers not supporti=
ng
PRZ> add-path? if we follow today's behavior, it would be any
PRZ> of the best-group paths broken on IGP metric.
PRZ> I think it is worth mentioning that if ANY of the involved RRs does
PRZ> not support add-path, the solution COULD loop again using IGP as tie-b=
reaker
PRZ> for routes from different ASes.
PRZ>
PRZ> Or is one of the restrictions this draft suggests
PRZ> that all RRs MUST be
PRZ> add-path capable ?

Yes, we're assuming that the solution can be deployed because all routers t=
hat need to support ADD-PATH. I think that assumption is clear in the text =
as it mentions several times that the solution is based on it.  We didn't l=
ook at partial deployments.

. . .

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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Uff, lost all the cont=
ext after 5 months of having been on it.&nbsp; Lez take it to the beer bar =
@ yokohama and you enlighten me. Some of the stuff you write I agree with, =
some I lost context &amp;&amp; need reconstruction.
 I only hope that meantime no one shipped an &#8216;almost-never-not-compar=
e-med&#8217;&nbsp; knob to complicate discussion further ;-) &#8230;
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">--- tony <o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<div>
<div style=3D"mso-element:para-border-div;border:none;border-bottom:solid w=
indowtext 1.0pt;padding:0in 0in 1.0pt 0in">
<p class=3D"MsoNormal" style=3D"border:none;padding:0in"><i><span style=3D"=
font-size:10.0pt;font-family:&quot;Bookman Old Style&quot;,&quot;serif&quot=
;;color:#A6A6A6"><o:p>&nbsp;</o:p></span></i></p>
</div>
<p class=3D"MsoNormal"><i><span style=3D"font-size:9.0pt;font-family:&quot;=
Bookman Old Style&quot;,&quot;serif&quot;;color:#A6A6A6"><a href=3D"http://=
www.brainyquote.com/quotes/quotes/m/marktwain393535.html" title=3D"view quo=
te"><span style=3D"color:#A6A6A6;text-decoration:none">There are
 basically two types of people. People who accomplish things, and people wh=
o claim to have accomplished things. The first group is less crowded.</span=
></a><o:p></o:p></span></i></p>
<p class=3D"MsoNormal"><i><span style=3D"font-size:8.0pt;font-family:&quot;=
Bookman Old Style&quot;,&quot;serif&quot;;color:#A6A6A6">~~~
<a href=3D"http://www.brainyquote.com/quotes/quotes/m/marktwain393535.html"=
 title=3D"view quote">
<span style=3D"color:#A6A6A6;text-decoration:none">Mark Twain</span></a><o:=
p></o:p></span></i></p>
</div>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:&quot=
;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> Alvaro R=
etana (aretana) [mailto:aretana@cisco.com]
<br>
<b>Sent:</b> Wednesday, October 07, 2015 1:42 PM<br>
<b>To:</b> Antoni Przygienda; rtg-ads@tools.ietf.org<br>
<b>Cc:</b> rtg-dir@ietf.org; draft-ietf-idr-route-oscillation-stop.all@tool=
s.ietf.org; idr wg (idr@ietf.org)<br>
<b>Subject:</b> Re: [Idr] RtgDir review: draft-ietf-idr-route-oscillation-s=
top-00<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">On 5/26=
/15, 9:36 PM, &quot;Antoni Przygienda&quot; &lt;<a href=3D"mailto:antoni.pr=
zygienda@ericsson.com">antoni.przygienda@ericsson.com</a>&gt; wrote:<o:p></=
o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">[Author=
 hat on.]<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">Tony:<o=
:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">Hi!<o:p=
></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">It took=
 me a while to get to this..<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">I just =
posted an update with clarifications that I think address your points. &nbs=
p; Responses to your comments inline. &nbsp; I'm just leaving in pieces whe=
re we have additional comments.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">Thanks!=
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">Alvaro.=
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #B5C4DF 4.5pt;padding:0i=
n 0in 0in 4.0pt;margin-left:3.75pt;margin-right:0in" id=3D"MAC_OUTLOOK_ATTR=
IBUTION_BLOCKQUOTE">
<div>
<p><span style=3D"font-size:8.0pt;font-family:Fixedsys;color:black">Network=
 Working Group&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; D. Walton</span><span style=3D"color:bl=
ack"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">Internet-Draft&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp; Cumulus Networks</span><span style=3D"color:black"><o:p></o:p></span></=
p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">Intended status: Standards Track=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A. Retana</span><span style=3D"color:black">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;</span><span style=3D"colo=
r:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; I would like to question w=
hether this is a standards Track document ?
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; It looks to me more BCP th=
an Standards track. It relies on peers
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; supporting on optional cap=
ability and then it only SHOULDs the
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; intended behavior. In fact=
 there is not a single normative MUST in
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; the whole document.</span>=
<span style=3D"color:black"><o:p></o:p></span></p>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">I don't=
 think you don&#8217;t need MUSTs, or even any rfc2119 language for a docum=
ent to be a standard.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">Persona=
lly I don&#8217;t think this is a BCP; it basically specifies how the MED o=
scillations can be resolved..so I think it should remain on the Standards T=
rack.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">Having =
said that, if the chairs/AD have any guidance they want us to follow, then =
we will.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">. . .<o=
:p></o:p></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #B5C4DF 4.5pt;padding:0i=
n 0in 0in 4.0pt;margin-left:3.75pt;margin-right:0in" id=3D"MAC_OUTLOOK_ATTR=
IBUTION_BLOCKQUOTE">
<div>
<div>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;&nbsp; These paths can be =
advertised using the mechanism described in ADD-</span><span style=3D"color=
:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;&nbsp; PATH [I-D.ietf-idr-=
add-paths] for advertising multiple paths.</span><span style=3D"color:black=
"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;</span><span style=3D"colo=
r:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; I suggest to indicate in t=
he document that all routers in AD MUST be
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; configured to behave consi=
stently when comparing MEDs
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; (i.e. always-compare-med, =
missing-as-worst and so on need to be
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; consistent).
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; There seems to me a hidden=
 assumption
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; in the document</span><spa=
n style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; albeit likely obvious for =
the skilled in the art that
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; always-compare-med is used=
 here (and in fact the overall behavior
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; simulates deterministic-ME=
D?) but IMO it must be mentioned what the
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; assumptions are. Especiall=
y for routers that want to the RRC but
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; do NOT support add-path e.=
g.
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; that they are sometimes em=
ployed to fix some of
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; those issues and need to b=
e considered.</span><span style=3D"color:black"><o:p></o:p></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">From th=
e discussion in rfc3345 (where the oscillations are described), always-comp=
are-med is actually ruled out because it defeats the purpose of setting the=
 MED. &nbsp;Missing-as-worst is the default
 from rfc4271..so we&#8217;re not making any assumptions of what knobs are =
configured beyond the default.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">OTOH, y=
es, deterministic-MED is pretty much what is described in section 4 (Advert=
ise the Group Best Paths) as part of the solution.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">I added=
 some clarification on assumptions.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"color:b=
lack">. . .<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #B5C4DF 4.5pt;padding:0i=
n 0in 0in 4.0pt;margin-left:3.75pt;margin-right:0in" id=3D"MAC_OUTLOOK_ATTR=
IBUTION_BLOCKQUOTE">
<div>
<div>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;</span><span style=3D"colo=
r:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">4.&nbsp; Advertise the Group Bes=
t Paths</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;</span><span style=3D"colo=
r:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;&nbsp; The term neighbor-A=
S for a route refers to the neighboring AS from</span><span style=3D"color:=
black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;&nbsp; which the route was=
 received.&nbsp; The calculation of the neighbor-AS is</span><span style=3D=
"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;&nbsp; specified in Sect. =
9.1.2.2 of [RFC4271], and Section 7.2 of</span><span style=3D"color:black">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;&nbsp; [RFC5065].&nbsp; By=
 definition the MED is comparable only among routes</span><span style=3D"co=
lor:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;&nbsp; with the same neigh=
bor-AS.
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;&nbsp;&nbsp;</span><span s=
tyle=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; We all know this can be vi=
olated by vendor specific configs and</span><span style=3D"color:black"><o:=
p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; merits mentioning as refer=
ence to 4456 again since this is a very
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; 'practical deployment'</sp=
an><span style=3D"color:black"><o:p></o:p></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">It must=
 be late..I&#8217;m missing the reference to 4456 when talking about change=
s in the default behavior.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #B5C4DF 4.5pt;padding:0i=
n 0in 0in 4.0pt;margin-left:3.75pt;margin-right:0in" id=3D"MAC_OUTLOOK_ATTR=
IBUTION_BLOCKQUOTE">
<div>
<div>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; targeted draft.&nbsp;In fa=
ct this draft should reference how two best
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; routes to same prefix via =
two different ASes (two group best paths
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; to same prefix) should be =
resolved or ECMP&#8217;ed. &nbsp;</span><span style=3D"color:black"><o:p></=
o:p></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">I know =
that many implementations support that type of ECMP. &nbsp;However, that is=
 not an issue specific to this draft or even ADD-PATH.<o:p></o:p></span></p=
>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">If we (=
the WG) ever wanted to document that internal behavior (similar to just reg=
ular ECMP) it should be in a separate draft.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">There i=
s no change to the resolution (finding the bestpath) of two group best path=
s.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">. . .<o=
:p></o:p></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #B5C4DF 4.5pt;padding:0i=
n 0in 0in 4.0pt;margin-left:3.75pt;margin-right:0in" id=3D"MAC_OUTLOOK_ATTR=
IBUTION_BLOCKQUOTE">
<div>
<div>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"color:b=
lack"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:black">&nbsp;</span><span style=3D"font=
-size:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; This needs specificatio=
n WHAT is advertised to the peers not supporting</span><span style=3D"color=
:black"><o:p></o:p></span></p>
</div>
</div>
</blockquote>
<blockquote style=3D"border:none;border-left:solid #B5C4DF 4.5pt;padding:0i=
n 0in 0in 4.0pt;margin-left:3.75pt;margin-right:0in" id=3D"MAC_OUTLOOK_ATTR=
IBUTION_BLOCKQUOTE">
<div>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; add-path? if we follow tod=
ay's behavior, it would be any
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; of the best-group paths br=
oken on IGP metric.
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; I think it is worth mentio=
ning that if ANY of the involved RRs does</span><span style=3D"color:black"=
><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; not support add-path, the =
solution COULD loop again using IGP as tie-breaker</span><span style=3D"col=
or:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; for routes from different =
ASes.
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt;</span><span style=3D"color=
:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; Or is one of the restricti=
ons this draft suggests
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; that all RRs MUST be
</span><span style=3D"color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:8.0pt;font-family:Fixedsys;color:red">PRZ&gt; add-path capable ?</span><=
span style=3D"color:black"><o:p></o:p></span></p>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">Yes, we=
&#8217;re assuming that the solution can be deployed because all routers th=
at need to support ADD-PATH. I think that assumption is clear in the text a=
s it mentions several times that the solution
 is based on it. &nbsp;We didn&#8217;t look at partial deployments. &nbsp;&=
nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;color:black">. . .<o=
:p></o:p></span></p>
</div>
</div>
</div>
</body>
</html>

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From: "Alvaro Retana (aretana)" <aretana@cisco.com>
To: Antoni Przygienda <antoni.przygienda@ericsson.com>, "rtg-ads@tools.ietf.org" <rtg-ads@tools.ietf.org>
Thread-Topic: [Idr] RtgDir review: draft-ietf-idr-route-oscillation-stop-00
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Subject: Re: [Idr] RtgDir review: draft-ietf-idr-route-oscillation-stop-00
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--_000_D23B01EFD8D89aretanaciscocom_
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On 10/7/15, 5:03 PM, "Antoni Przygienda" <antoni.przygienda@ericsson.com<ma=
ilto:antoni.przygienda@ericsson.com>> wrote:

Uff, lost all the context after 5 months of having been on it.  Lez take it=
 to the beer bar @ yokohama and you enlighten me.

You got it!

Some of the stuff you write I agree with, some I lost context && need recon=
struction. I only hope that meantime no one shipped an =91almost-never-not-=
compare-med=92  knob to complicate discussion further ;-)

Nope..just the new 'randomly-compare-med', which is of course the new defau=
lt.

Alvaro.

--_000_D23B01EFD8D89aretanaciscocom_
Content-Type: text/html; charset="Windows-1252"
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<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DWindows-1=
252">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif;">
<div>On 10/7/15, 5:03 PM, &quot;Antoni Przygienda&quot; &lt;<a href=3D"mail=
to:antoni.przygienda@ericsson.com">antoni.przygienda@ericsson.com</a>&gt; w=
rote:</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div><br>
</div>
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<span style=3D"color: rgb(31, 73, 125); font-family: Calibri, sans-serif; f=
ont-size: 15px; font-style: normal; font-variant: normal; font-weight: norm=
al; letter-spacing: normal; line-height: normal; orphans: auto; text-align:=
 start; text-indent: 0px; text-transform: none; white-space: normal; widows=
: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; dis=
play: inline !important;">Uff,
 lost all the context after 5 months of having been on it.&nbsp; Lez take i=
t to the beer bar @ yokohama and you enlighten me.
</span></blockquote>
</span>
<div><br>
</div>
<div>You got it! &nbsp;&nbsp;</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<span style=3D"color: rgb(31, 73, 125); font-family: Calibri, sans-serif; f=
ont-size: 15px; font-style: normal; font-variant: normal; font-weight: norm=
al; letter-spacing: normal; line-height: normal; orphans: auto; text-align:=
 start; text-indent: 0px; text-transform: none; white-space: normal; widows=
: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; dis=
play: inline !important;">Some
 of the stuff you write I agree with, some I lost context &amp;&amp; need r=
econstruction. I only hope that meantime no one shipped an =91almost-never-=
not-compare-med=92&nbsp; knob to complicate discussion further ;-)<span cla=
ss=3D"Apple-converted-space">&nbsp;</span></span></blockquote>
</span>
<div><br>
</div>
<div>Nope..just the new 'randomly-compare-med', which is of course the new =
default.</div>
<div><br>
</div>
<div>Alvaro.</div>
</body>
</html>

--_000_D23B01EFD8D89aretanaciscocom_--


From nobody Thu Oct  8 03:23:33 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Alvaro Retana \(aretana\)'" <aretana@cisco.com>, <idr@ietf.org>
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Subject: Re: [Idr] Changes to draft-ietf-idr-ls-distribution
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Ack

> -----Original Message-----
> From: Alvaro Retana (aretana) [mailto:aretana@cisco.com]
> Sent: 05 October 2015 13:10
> To: adrian@olddog.co.uk; idr@ietf.org
> Subject: Re: [Idr] Changes to draft-ietf-idr-ls-distribution
>=20
> On 10/4/15, 4:57 PM, "Idr on behalf of Adrian Farrel"
> <idr-bounces@ietf.org on behalf of adrian@olddog.co.uk> wrote:
>=20
> >- Section 3.3.2.2. Wordsmithing.
>=20
> There=B9s a superfluous =B3>=B2 in there...


From nobody Thu Oct  8 03:23:34 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
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Subject: Re: [Idr] Alvaro's AD Comments on draft-ietf-idr-ls-distribution
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Ack

> The next time you edit draft-ietf-idr-ls-distribution in section 3.3.2.2.
> 
> Typo:
> />Generation of the MPLS Protocol Mask/Generation of MPLS Protocol Mask/


From nobody Thu Oct  8 09:58:53 2015
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From: "Susan Hares" <shares@ndzh.com>
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Subject: [Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements from Stefano and Adrian Farell
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Stefano and Adrian: 

 

We cannot finishing processing of draft-ietf-idr-ls-distribution until you
answers the WG LC IPR Statement

 

Do you know if any IPR other than the disclosure WG IPR at: 

 

https://datatracker.ietf.org/ipr/1864/

 

Sue Hares 

For Shepherd Jie Dong


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>Stefano =
and Adrian: <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>We cannot finishing processing of =
draft-ietf-idr-ls-distribution until you answers the WG LC IPR =
Statement<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Do you know if any IPR other than the disclosure WG =
IPR at: <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><a =
href=3D"https://datatracker.ietf.org/ipr/1864/">https://datatracker.ietf.=
org/ipr/1864/</a><o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sue Hares =
<o:p></o:p></p><p class=3DMsoNormal>For Shepherd Jie =
Dong<o:p></o:p></p></div></body></html>
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Subject: Re: [Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements from Stefano and Adrian Farell
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Resending with Stefano's correct email address. 

 

Sue Hares

 

PS - Thank you to Acee Lindem for noticing my error. 

 

From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Susan Hares
Sent: Thursday, October 08, 2015 12:59 PM
To: idr@ietf.org; 'Adrian Farrel'; sprevidi@cisco.com'
Subject: [Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements
from Stefano and Adrian Farell

 

Stefano and Adrian: 

 

We cannot finishing processing of draft-ietf-idr-ls-distribution until you
answers the WG LC IPR Statement

 

Do you know if any IPR other than the disclosure WG IPR at: 

 

https://datatracker.ietf.org/ipr/1864/

 

Sue Hares 

For Shepherd Jie Dong


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Resending with Stefano&#8217;s correct email =
address. <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Sue =
Hares<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>PS &#8211; Thank you to =
Acee Lindem for noticing my error. <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Idr [mailto:idr-bounces@ietf.org] <b>On Behalf Of </b>Susan =
Hares<br><b>Sent:</b> Thursday, October 08, 2015 12:59 PM<br><b>To:</b> =
idr@ietf.org; 'Adrian Farrel'; sprevidi@cisco.com'<br><b>Subject:</b> =
[Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements from =
Stefano and Adrian Farell<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Stefano and =
Adrian: <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>We cannot finishing processing of =
draft-ietf-idr-ls-distribution until you answers the WG LC IPR =
Statement<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Do you know if any IPR other than the disclosure WG =
IPR at: <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><a =
href=3D"https://datatracker.ietf.org/ipr/1864/">https://datatracker.ietf.=
org/ipr/1864/</a><o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sue Hares =
<o:p></o:p></p><p class=3DMsoNormal>For Shepherd Jie =
Dong<o:p></o:p></p></div></body></html>
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From: "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>
To: "idr@ietf.org" <idr@ietf.org>, "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "shares@ndzh.com" <shares@ndzh.com>
Thread-Topic: [Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements from Stefano and Adrian Farell
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Subject: Re: [Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements from Stefano and Adrian Farell
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Hi,

Sorry for being late on this.

I'm not aware of any IPR on this draft.

s.

-----Original Message-----
From: Susan Hares [shares@ndzh.com]
Received: Thursday, 08 Oct 2015, 19:21
To: idr@ietf.org [idr@ietf.org]; 'Adrian Farrel' [adrian@olddog.co.uk]; Ste=
fano Previdi (sprevidi) [sprevidi@cisco.com]
Subject: RE: [Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR Stateme=
nts from Stefano and Adrian Farell

Resending with Stefano=92s correct email address.

Sue Hares

PS =96 Thank you to Acee Lindem for noticing my error.

From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Susan Hares
Sent: Thursday, October 08, 2015 12:59 PM
To: idr@ietf.org; 'Adrian Farrel'; sprevidi@cisco.com'
Subject: [Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements =
from Stefano and Adrian Farell

Stefano and Adrian:

We cannot finishing processing of draft-ietf-idr-ls-distribution until you =
answers the WG LC IPR Statement

Do you know if any IPR other than the disclosure WG IPR at:

https://datatracker.ietf.org/ipr/1864/

Sue Hares
For Shepherd Jie Dong

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<span style=3D"font-family:Calibri,Arial,Helvetica,sans-serif; font-size:11=
pt; color:black">Hi,<br>
<br>
Sorry for being late on this.<br>
<br>
I'm not aware of any IPR on this draft.<br>
<br>
s.<br>
<br>
<span style=3D"color:black">-----Original Message----- <br>
<b>From:</b> Susan Hares [shares@ndzh.com]<br>
<b>Received:</b> Thursday, 08 Oct 2015, 19:21<br>
<b>To:</b> idr@ietf.org [idr@ietf.org]; 'Adrian Farrel' [adrian@olddog.co.u=
k]; Stefano Previdi (sprevidi) [sprevidi@cisco.com]<br>
<b>Subject:</b> RE: [Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR =
Statements from Stefano and Adrian Farell<br>
<br>
</span></span>
<div>
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Resending with Stefano=
=92s correct email address.
</span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Sue Hares</span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">PS =96 Thank you to Ac=
ee Lindem for noticing my error.
</span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;</span></p>
<div>
<div style=3D"border:none; border-top:solid #B5C4DF 1.0pt; padding:3.0pt 0i=
n 0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt; font-family:&quo=
t;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style=3D"font-=
size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> Idr [m=
ailto:idr-bounces@ietf.org]
<b>On Behalf Of </b>Susan Hares<br>
<b>Sent:</b> Thursday, October 08, 2015 12:59 PM<br>
<b>To:</b> idr@ietf.org; 'Adrian Farrel'; sprevidi@cisco.com'<br>
<b>Subject:</b> [Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR Stat=
ements from Stefano and Adrian Farell</span></p>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal">Stefano and Adrian: </p>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal">We cannot finishing processing of draft-ietf-idr-ls-=
distribution until you answers the WG LC IPR Statement</p>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal">Do you know if any IPR other than the disclosure WG =
IPR at: </p>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/ipr/1864/">h=
ttps://datatracker.ietf.org/ipr/1864/</a></p>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal">Sue Hares </p>
<p class=3D"MsoNormal">For Shepherd Jie Dong</p>
</div>
</div>
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</html>

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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Susan Hares'" <shares@ndzh.com>, <idr@ietf.org>
References: <026601d101ea$9d06d220$d7147660$@ndzh.com>
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Date: Thu, 8 Oct 2015 18:39:55 +0100
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Archived-At: <http://mailarchive.ietf.org/arch/msg/idr/YBRkdNC_exsgQjTS1hHd0E3_5LA>
Subject: Re: [Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements from Stefano and Adrian Farell
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Hi Sue,
 
Attached.
 
And then, of course, I just posted the latest revision as can be seen by the
datatracker, and that version includes...
   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.
 
But, to avoid a discussion:
  No, I am not aware of any IPR related to this document that has not already
been disclosed.
 
Thanks,
Adrian
 
 
 
From: Susan Hares [mailto:shares@ndzh.com] 
Sent: 08 October 2015 17:59
To: idr@ietf.org; 'Adrian Farrel'; sprevidi@cisco.com'
Cc: 'Alvaro Retana (aretana)'
Subject: draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements from
Stefano and Adrian Farell 
 
Stefano and Adrian: 
 
We cannot finishing processing of draft-ietf-idr-ls-distribution until you
answers the WG LC IPR Statement
 
Do you know if any IPR other than the disclosure WG IPR at: 
 
https://datatracker.ietf.org/ipr/1864/
 
Sue Hares 
For Shepherd Jie Dong

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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-GB link=3Dblue =
vlink=3Dpurple style=3D'tab-interval:36.0pt'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>Hi =
Sue,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>Attached.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>And then, of course, I =
just posted the latest revision as can be seen by the datatracker, and =
that version includes...<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>This Internet-Draft is =
submitted in full conformance with the<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>provisions of BCP 78 and =
BCP 79.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>But, to avoid a =
discussion:<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp; </span>No, I am not aware of any IPR =
related to this document that has not already been =
disclosed.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>Thanks,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>Adrian<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt'><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-f=
ont-family:"Times New =
Roman";mso-ansi-language:EN-US'>From:</span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-f=
ont-family:"Times New Roman";mso-ansi-language:EN-US'> Susan Hares =
[mailto:shares@ndzh.com] <br><b>Sent:</b> 08 October 2015 =
17:59<br><b>To:</b> idr@ietf.org; 'Adrian Farrel'; =
sprevidi@cisco.com'<br><b>Cc:</b> 'Alvaro Retana =
(aretana)'<br><b>Subject:</b> draft-ietf-idr-ls-distribution-12.txt - =
Need IPR Statements from Stefano and Adrian Farell =
<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'mso-ansi-language:EN-US'>Stefano and Adrian: =
<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US'>We cannot finishing processing of =
draft-ietf-idr-ls-distribution until you answers the WG LC IPR =
Statement<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US'>Do you know if any IPR other than the =
disclosure WG IPR at: <o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US'><a =
href=3D"https://datatracker.ietf.org/ipr/1864/">https://datatracker.ietf.=
org/ipr/1864/</a><o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US'>Sue Hares <o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US'>For Shepherd Jie =
Dong<o:p></o:p></span></p></div></div></body></html>
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Susan Hares'" <shares@ndzh.com>,
	<draft-ietf-idr-ls-distribution@tools.ietf.org>,
	"'Bruno Rijsman'" <brijsman@juniper.net>,
	"'Hannes Gredler'" <hannes@juniper.net>
Cc: "'Alia Atlas'" <akatlas@juniper.net>,
	"'John G. Scudder'" <jgs@juniper.net>
References: <00ad01cf382f$5b670410$12350c30$@ndzh.com>
In-Reply-To: <00ad01cf382f$5b670410$12350c30$@ndzh.com>
Subject: RE: Mail regarding draft-ietf-idr-ls-distribution
Date: Wed, 5 Mar 2014 10:29:05 +0100
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Hi Sue,
 
I am personally unaware of any IPR that has not already been disclosed that
might impact upon this draft.
 
Thanks,
Adrian
 
From: Susan Hares [mailto:shares@ndzh.com] 
Sent: 05 March 2014 04:57
To: draft-ietf-idr-ls-distribution@tools.ietf.org; Bruno Rijsman; Hannes Gredler
Cc: 'Adrian Farrel'; Alia Atlas; John G. Scudder
Subject: Mail regarding draft-ietf-idr-ls-distribution
 
Bruno, Adrian, Hannes, Jan, Stefano, and Saikat
 
Welcome to the phase of the RFC process that can be painful.  I am your document
shepherd as well as WG co-chair.  This message is one of a stream of emails you
will need to respond quickly to in order to push this to RFC quickly.  
 
First of all, please confirm for the RFC process that you have disclosed all
IPR. Please respond to this message. It is a gating factor on the early
allocation that Alia Atlas (our new AD) will perform.  Unfortunately, you will
also be asked to confirm this on-list during the WG LC call. 
 
Here's my current plan for the approval process of this document in March-April.
 
3/5/14 - Update shepherd's write-up gets forwarded to Alia Atlas (new AD) can
approve the early allocation
a)  AFI/SAFI
b)  BGP Path Attribute 
 
3/6-3/11: Editorial comments (see below) will be sent to you from me (and
perhaps Alia) on this document and the implementation report. 
          The first set of these editorial comments is the fixing of the nits
below.
          The second set will be sent on Thursday based on my re-reading the
document and the IETF 89 discussion.
          Please spin this document with the fixes. 
         
 
3/12-3/26: I will do a WG LC 
 
I will do a WG LC, and send this draft to GEN-ART, OPS-DIR, ISIS chairs, I2RS WG
chairs, routing directorate, and Routing AD for early review.  The early review
process allows these groups to provide early review prior to the IESG process.
The benefit to these reviews is that we may spin a copy of the draft prior to
entering the IESG approval process. As Adrian will tell you, a document which
goes in pre-approved by these groups tends to go through quicker.
          Please plan to select members of the team to respond to these
editorials.
 
3/26: Final check before IESG Evaluation
 
If you have responded to the GEN-ART, OPS-IDR, ISIS Chairs, and Routing AD,
We'll do a last email exchange and then I will send it to Alia Atlas and Adrian
for IESG Review.
 
3/27-4/30(?) 
 
Adrian and Alia have the following steps to go through:
a)  IETF LC
b)  Directorate formal reviews (GEN-ART, OPS-DIR, Routing Directorate (if they
wish))
c)  Final IESG review
 
Again, please elect someone to respond quickly to these action.  
 
Thank you,
 
Susan Hares
 
 
===============
 
 
Editorial comments on:  On draft-ietf-idr-ls-distribution: 
 
1)  Please provide XML, TXT, and pdf as input
2)  Please fix the following nits 
 
 
  Checking nits according to http://www.ietf.org/id-info/checklist :
  ----------------------------------------------------------------------------
 
  == There are 1 instance of lines with private range IPv4 addresses in the
     document.  If these are generic example addresses, they should be changed
     to use any of the ranges defined in RFC 5735 (or successor): 192.0.2.x,
     198.51.100.x or 203.0.113.x.
 
 
  Miscellaneous warnings:
  ----------------------------------------------------------------------------
 
  == The copyright year in the IETF Trust and authors Copyright Line does not
     match the current year
 
  == The document seems to lack the recommended RFC 2119 boilerplate, even if
     it appears to use RFC 2119 keywords -- however, there's a paragraph with
     a matching beginning. Boilerplate error?
 
     (The document does seem to have the reference to RFC 2119 which the
     ID-Checklist requires).
  -- The document date (July 15, 2012) is 597 days in the past.  Is this
     intentional?
 
 
  Checking references for intended status: Proposed Standard
  ----------------------------------------------------------------------------
 
     (See RFCs 3967 and 4897 for information about using normative references
     to lower-maturity documents in RFCs)
 
  ** Obsolete normative reference: RFC 4893 (Obsoleted by RFC 6793)
 
  == Outdated reference: A later version (-26) exists of
     draft-ietf-alto-protocol-11
 
  == Outdated reference: draft-ietf-isis-mi has been published as RFC 6822
 
 
     Summary: 1 error (**), 0 flaws (~~), 5 warnings (==), 1 comment (--).
 
     Run idnits with the --verbose option for more detailed information about
     the items above.
 
=========
 
Editorial comments on the implementation report
 
1)  If you have a third implementation - please add it by 3/10
2)  Make sure to provide txt, xml, and pdf - in good forms. 
 

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Content-Type: text/html;
	charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

<html xmlns:v=3D"urn:schemas-microsoft-com:vml" =
xmlns:o=3D"urn:schemas-microsoft-com:office:office" =
xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" =
xmlns=3D"http://www.w3.org/TR/REC-html40"><head>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<meta name=3DProgId content=3DWord.Document><meta name=3DGenerator =
content=3D"Microsoft Word 14"><meta name=3DOriginator =
content=3D"Microsoft Word 14"><link rel=3DFile-List =
href=3D"cid:filelist.xml@01CF3855.5A844FF0"><!--[if gte mso 9]><xml>
<o:OfficeDocumentSettings>
<o:AllowPNG/>
</o:OfficeDocumentSettings>
</xml><![endif]--><!--[if gte mso 9]><xml>
<w:WordDocument>
<w:SpellingState>Clean</w:SpellingState>
<w:TrackMoves/>
<w:TrackFormatting/>
<w:EnvelopeVis/>
<w:ValidateAgainstSchemas/>
<w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid>
<w:IgnoreMixedContent>false</w:IgnoreMixedContent>
<w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText>
<w:DoNotPromoteQF/>
<w:LidThemeOther>EN-GB</w:LidThemeOther>
<w:LidThemeAsian>X-NONE</w:LidThemeAsian>
<w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript>
<w:Compatibility>
<w:DoNotExpandShiftReturn/>
<w:BreakWrappedTables/>
<w:SplitPgBreakAndParaMark/>
<w:EnableOpenTypeKerning/>
</w:Compatibility>
<w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>
<m:mathPr>
<m:mathFont m:val=3D"Cambria Math"/>
<m:brkBin m:val=3D"before"/>
<m:brkBinSub m:val=3D"&#45;-"/>
<m:smallFrac m:val=3D"off"/>
<m:dispDef/>
<m:lMargin m:val=3D"0"/>
<m:rMargin m:val=3D"0"/>
<m:defJc m:val=3D"centerGroup"/>
<m:wrapIndent m:val=3D"1440"/>
<m:intLim m:val=3D"subSup"/>
<m:naryLim m:val=3D"undOvr"/>
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</xml><![endif]--><!--[if gte mso 9]><xml>
<w:LatentStyles DefLockedState=3D"false" DefUnhideWhenUsed=3D"true" =
DefSemiHidden=3D"true" DefQFormat=3D"false" DefPriority=3D"99" =
LatentStyleCount=3D"267">
<w:LsdException Locked=3D"false" Priority=3D"0" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" QFormat=3D"true" Name=3D"Normal"/>
<w:LsdException Locked=3D"false" Priority=3D"9" SemiHidden=3D"false" =
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<w:LsdException Locked=3D"false" Priority=3D"9" QFormat=3D"true" =
Name=3D"heading 2"/>
<w:LsdException Locked=3D"false" Priority=3D"9" QFormat=3D"true" =
Name=3D"heading 3"/>
<w:LsdException Locked=3D"false" Priority=3D"9" QFormat=3D"true" =
Name=3D"heading 4"/>
<w:LsdException Locked=3D"false" Priority=3D"9" QFormat=3D"true" =
Name=3D"heading 5"/>
<w:LsdException Locked=3D"false" Priority=3D"9" QFormat=3D"true" =
Name=3D"heading 6"/>
<w:LsdException Locked=3D"false" Priority=3D"9" QFormat=3D"true" =
Name=3D"heading 7"/>
<w:LsdException Locked=3D"false" Priority=3D"9" QFormat=3D"true" =
Name=3D"heading 8"/>
<w:LsdException Locked=3D"false" Priority=3D"9" QFormat=3D"true" =
Name=3D"heading 9"/>
<w:LsdException Locked=3D"false" Priority=3D"39" Name=3D"toc 1"/>
<w:LsdException Locked=3D"false" Priority=3D"39" Name=3D"toc 2"/>
<w:LsdException Locked=3D"false" Priority=3D"39" Name=3D"toc 3"/>
<w:LsdException Locked=3D"false" Priority=3D"39" Name=3D"toc 4"/>
<w:LsdException Locked=3D"false" Priority=3D"39" Name=3D"toc 5"/>
<w:LsdException Locked=3D"false" Priority=3D"39" Name=3D"toc 6"/>
<w:LsdException Locked=3D"false" Priority=3D"39" Name=3D"toc 7"/>
<w:LsdException Locked=3D"false" Priority=3D"39" Name=3D"toc 8"/>
<w:LsdException Locked=3D"false" Priority=3D"39" Name=3D"toc 9"/>
<w:LsdException Locked=3D"false" Priority=3D"35" QFormat=3D"true" =
Name=3D"caption"/>
<w:LsdException Locked=3D"false" Priority=3D"10" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" QFormat=3D"true" Name=3D"Title"/>
<w:LsdException Locked=3D"false" Priority=3D"1" Name=3D"Default =
Paragraph Font"/>
<w:LsdException Locked=3D"false" Priority=3D"11" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" QFormat=3D"true" Name=3D"Subtitle"/>
<w:LsdException Locked=3D"false" Priority=3D"22" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" QFormat=3D"true" Name=3D"Strong"/>
<w:LsdException Locked=3D"false" Priority=3D"20" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" QFormat=3D"true" Name=3D"Emphasis"/>
<w:LsdException Locked=3D"false" Priority=3D"59" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Table Grid"/>
<w:LsdException Locked=3D"false" UnhideWhenUsed=3D"false" =
Name=3D"Placeholder Text"/>
<w:LsdException Locked=3D"false" Priority=3D"1" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" QFormat=3D"true" Name=3D"No Spacing"/>
<w:LsdException Locked=3D"false" Priority=3D"60" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Shading"/>
<w:LsdException Locked=3D"false" Priority=3D"61" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light List"/>
<w:LsdException Locked=3D"false" Priority=3D"62" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Grid"/>
<w:LsdException Locked=3D"false" Priority=3D"63" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 1"/>
<w:LsdException Locked=3D"false" Priority=3D"64" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 2"/>
<w:LsdException Locked=3D"false" Priority=3D"65" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 1"/>
<w:LsdException Locked=3D"false" Priority=3D"66" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 2"/>
<w:LsdException Locked=3D"false" Priority=3D"67" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 1"/>
<w:LsdException Locked=3D"false" Priority=3D"68" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 2"/>
<w:LsdException Locked=3D"false" Priority=3D"69" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 3"/>
<w:LsdException Locked=3D"false" Priority=3D"70" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Dark List"/>
<w:LsdException Locked=3D"false" Priority=3D"71" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Shading"/>
<w:LsdException Locked=3D"false" Priority=3D"72" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful List"/>
<w:LsdException Locked=3D"false" Priority=3D"73" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Grid"/>
<w:LsdException Locked=3D"false" Priority=3D"60" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Shading Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"61" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light List Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"62" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Grid Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"63" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 1 Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"64" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 2 Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"65" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 1 Accent 1"/>
<w:LsdException Locked=3D"false" UnhideWhenUsed=3D"false" =
Name=3D"Revision"/>
<w:LsdException Locked=3D"false" Priority=3D"34" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" QFormat=3D"true" Name=3D"List Paragraph"/>
<w:LsdException Locked=3D"false" Priority=3D"29" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" QFormat=3D"true" Name=3D"Quote"/>
<w:LsdException Locked=3D"false" Priority=3D"30" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" QFormat=3D"true" Name=3D"Intense Quote"/>
<w:LsdException Locked=3D"false" Priority=3D"66" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 2 Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"67" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 1 Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"68" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 2 Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"69" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 3 Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"70" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Dark List Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"71" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Shading Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"72" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful List Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"73" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Grid Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"60" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Shading Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"61" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light List Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"62" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Grid Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"63" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 1 Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"64" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 2 Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"65" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 1 Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"66" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 2 Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"67" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 1 Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"68" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 2 Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"69" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 3 Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"70" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Dark List Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"71" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Shading Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"72" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful List Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"73" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Grid Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"60" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Shading Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"61" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light List Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"62" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Grid Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"63" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 1 Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"64" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 2 Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"65" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 1 Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"66" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 2 Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"67" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 1 Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"68" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 2 Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"69" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 3 Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"70" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Dark List Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"71" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Shading Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"72" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful List Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"73" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Grid Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"60" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Shading Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"61" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light List Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"62" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Grid Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"63" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 1 Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"64" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 2 Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"65" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 1 Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"66" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 2 Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"67" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 1 Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"68" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 2 Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"69" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 3 Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"70" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Dark List Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"71" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Shading Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"72" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful List Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"73" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Grid Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"60" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Shading Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"61" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light List Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"62" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Grid Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"63" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 1 Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"64" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 2 Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"65" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 1 Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"66" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 2 Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"67" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 1 Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"68" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 2 Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"69" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 3 Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"70" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Dark List Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"71" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Shading Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"72" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful List Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"73" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Grid Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"60" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Shading Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"61" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light List Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"62" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Light Grid Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"63" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 1 Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"64" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Shading 2 Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"65" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 1 Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"66" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium List 2 Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"67" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 1 Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"68" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 2 Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"69" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Medium Grid 3 Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"70" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Dark List Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"71" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful Shading Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"72" SemiHidden=3D"false" =
UnhideWhenUsed=3D"false" Name=3D"Colorful List Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"73" SemiHidden=3D"false" =
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<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
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<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DEN-GB link=3Dblue =
vlink=3Dpurple style=3D'tab-interval:36.0pt'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>Hi =
Sue,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>I am personally =
unaware of any IPR that has not already been disclosed that might impact =
upon this draft.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>Thanks,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>Adrian<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt'><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-f=
ont-family:"Times New =
Roman";mso-ansi-language:EN-US'>From:</span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-f=
ont-family:"Times New Roman";mso-ansi-language:EN-US'> Susan Hares =
[mailto:shares@ndzh.com] <br><b>Sent:</b> 05 March 2014 =
04:57<br><b>To:</b> draft-ietf-idr-ls-distribution@tools.ietf.org; Bruno =
Rijsman; Hannes Gredler<br><b>Cc:</b> 'Adrian Farrel'; Alia Atlas; John =
G. Scudder<br><b>Subject:</b> Mail regarding =
draft-ietf-idr-ls-distribution<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><pre =
style=3D'page-break-before:always'><span lang=3DEN-US =
style=3D'color:black;mso-ansi-language:EN-US'>Bruno, Adrian, Hannes, =
Jan, Stefano, and </span><span lang=3DEN-US =
style=3D'font-size:12.0pt;color:black;mso-ansi-language:EN-US'>Saikat<o:p=
></o:p></span></pre><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>Welcome to the phase of the =
RFC process that can be painful.&nbsp; I am your document shepherd as =
well as WG co-chair. &nbsp;This message is one of a stream of emails you =
will need to respond quickly to in order to push this to RFC =
quickly.&nbsp; <o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>First of all, please confirm =
for the RFC process that you have disclosed all IPR. Please respond to =
this message. It is a gating factor on the early allocation that Alia =
Atlas (our new AD) will perform.&nbsp; Unfortunately, you will also be =
asked to confirm this on-list during the WG LC call. =
<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>Here&#8217;s my current plan =
for the approval process of this document in =
March-April.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>3/5/14 &#8211; Update =
shepherd&#8217;s write-up gets forwarded to Alia Atlas (new AD) can =
approve the early allocation<o:p></o:p></span></p><p =
class=3DMsoListParagraph =
style=3D'margin-left:69.75pt;text-indent:-18.0pt;mso-list:l0 level1 =
lfo2'><![if !supportLists]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";mso-fareast-font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><span =
style=3D'mso-list:Ignore'>a)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>AFI/SAFI<o:p></o:p></span></p><=
p class=3DMsoListParagraph =
style=3D'margin-left:69.75pt;text-indent:-18.0pt;mso-list:l0 level1 =
lfo2'><![if !supportLists]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";mso-fareast-font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><span =
style=3D'mso-list:Ignore'>b)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>BGP Path Attribute =
<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>3/6-3/11: Editorial comments =
(see below) will be sent to you from me (and perhaps Alia) on this =
document and the implementation report. <o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; &nbsp;&nbsp;The first set of these editorial comments is the =
fixing of the nits below.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; &nbsp; The second set will be sent on Thursday based on my =
re-reading the document and the IETF 89 =
discussion.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp; Please spin this document with the fixes. =
<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; &nbsp;<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>3/12-3/26: I will do a WG LC =
<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>I will do a WG LC, and send =
this draft to GEN-ART, OPS-DIR, ISIS chairs, I2RS WG chairs, routing =
directorate, and Routing AD for early review. &nbsp;The early review =
process allows these groups to provide early review prior to the IESG =
process. The benefit to these reviews is that we may spin a copy of the =
draft prior to entering the IESG approval process. As Adrian will tell =
you, a document which goes in pre-approved by these groups tends to go =
through quicker.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; &nbsp; Please plan to select members of the team to respond =
to these editorials.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>3/26: Final check before IESG =
Evaluation<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>If you have responded to the =
GEN-ART, OPS-IDR, ISIS Chairs, and Routing AD, &nbsp;We&#8217;ll do a =
last email exchange and then I will send it to Alia Atlas and Adrian for =
IESG Review.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>3/27-4/30(?) =
<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>Adrian and Alia have the =
following steps to go through:<o:p></o:p></span></p><p =
class=3DMsoListParagraph =
style=3D'margin-left:78.0pt;text-indent:-18.0pt;mso-list:l2 level1 =
lfo4'><![if !supportLists]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";mso-fareast-font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><span =
style=3D'mso-list:Ignore'>a)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>IETF =
LC<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:78.0pt;text-indent:-18.0pt;mso-list:l2 level1 =
lfo4'><![if !supportLists]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";mso-fareast-font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><span =
style=3D'mso-list:Ignore'>b)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>Directorate formal reviews =
(GEN-ART, OPS-DIR, Routing Directorate (if they =
wish))<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:78.0pt;text-indent:-18.0pt;mso-list:l2 level1 =
lfo4'><![if !supportLists]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";mso-fareast-font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><span =
style=3D'mso-list:Ignore'>c)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>Final IESG =
review<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>Again, please elect someone to =
respond quickly to these action. &nbsp;<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>Thank =
you,<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>Susan =
Hares<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>Editorial comments on:&nbsp; =
On draft-ietf-idr-ls-distribution: <o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoListParagraph style=3D'text-indent:-18.0pt;mso-list:l3 level1 =
lfo6'><![if !supportLists]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";mso-fareast-font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><span =
style=3D'mso-list:Ignore'>1)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>Please provide XML, TXT, and =
pdf as input<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-18.0pt;mso-list:l3 level1 lfo6'><![if =
!supportLists]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";mso-fareast-font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><span =
style=3D'mso-list:Ignore'>2)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>Please fix the following nits =
<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; Checking nits according =
to http://www.ietf.org/id-info/checklist :<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; =
-------------------------------------------------------------------------=
---<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; =3D=3D There are 1 =
instance of lines with private range IPv4 addresses in =
the<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; =
document.&nbsp; If these are generic example addresses, they should be =
changed<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; to =
use any of the ranges defined in RFC 5735 (or successor): =
192.0.2.x,<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; =
198.51.100.x or 203.0.113.x.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; Miscellaneous =
warnings:<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; =
-------------------------------------------------------------------------=
---<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; =3D=3D The copyright =
year in the IETF Trust and authors Copyright Line does =
not<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; match =
the current year<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; =3D=3D The document =
seems to lack the recommended RFC 2119 boilerplate, even =
if<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; it =
appears to use RFC 2119 keywords -- however, there's a paragraph =
with<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; a =
matching beginning. Boilerplate error?<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; (The =
document does seem to have the reference to RFC 2119 which =
the<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; =
ID-Checklist requires).<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; -- The document date =
(July 15, 2012) is 597 days in the past.&nbsp; Is =
this<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; =
intentional?<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; Checking references for =
intended status: Proposed Standard<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; =
-------------------------------------------------------------------------=
---<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; (See =
RFCs 3967 and 4897 for information about using normative =
references<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; to =
lower-maturity documents in RFCs)<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; ** Obsolete normative =
reference: RFC 4893 (Obsoleted by RFC 6793)<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; =3D=3D Outdated =
reference: A later version (-26) exists of<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; =
draft-ietf-alto-protocol-11<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp; =3D=3D Outdated =
reference: draft-ietf-isis-mi has been published as RFC =
6822<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; =
Summary: 1 error (**), 0 flaws (~~), 5 warnings (=3D=3D), 1 comment =
(--).<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; Run =
idnits with the --verbose option for more detailed information =
about<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp; the =
items above.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>=3D=3D=3D=3D=3D=3D=3D=3D=3D<o:p=
></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black;mso-ansi-language:EN-US'>Editorial comments on the =
implementation report<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:10.0pt;font-family:"Courier =
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Subject: Re: [Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements from Stefano and Adrian Farell
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Adrian: 

 

Thank you for the mail pointer which I obviously missed in the email search.
This would have been sufficient had your chair found it.  Mea culpa.  

 

I realize you posted the draft with BCP 78 and BCP 79, but I had a request
from my AD and the rest of IESG to have an email thread with your comment
about not being aware that I could point to in the shepherd report.  Thank
you for your kindness in avoiding discussion and giving me 2 email pointers.


 

Your red-faced IDR Co-chair, 

 

Sue 

 

From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Adrian Farrel
Sent: Thursday, October 08, 2015 1:40 PM
To: 'Susan Hares'; idr@ietf.org
Subject: Re: [Idr] draft-ietf-idr-ls-distribution-12.txt - Need IPR
Statements from Stefano and Adrian Farell

 

Hi Sue,

 

Attached.

 

And then, of course, I just posted the latest revision as can be seen by the
datatracker, and that version includes...

   This Internet-Draft is submitted in full conformance with the

   provisions of BCP 78 and BCP 79.

 

But, to avoid a discussion:

  No, I am not aware of any IPR related to this document that has not
already been disclosed.

 

Thanks,

Adrian

 

 

 

From: Susan Hares [mailto:shares@ndzh.com] 
Sent: 08 October 2015 17:59
To: idr@ietf.org; 'Adrian Farrel'; sprevidi@cisco.com'
Cc: 'Alvaro Retana (aretana)'
Subject: draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements from
Stefano and Adrian Farell 

 

Stefano and Adrian: 

 

We cannot finishing processing of draft-ietf-idr-ls-distribution until you
answers the WG LC IPR Statement

 

Do you know if any IPR other than the disclosure WG IPR at: 

 

https://datatracker.ietf.org/ipr/1864/

 

Sue Hares 

For Shepherd Jie Dong


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div.WordSection1
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<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Adrian: <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Thank you for the mail =
pointer which I obviously missed in the email search.&nbsp;&nbsp; This =
would have been sufficient had your chair found it.&nbsp; Mea =
culpa.&nbsp; <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>I realize you posted the =
draft with BCP 78 and BCP 79, but I had a request from my AD and the =
rest of IESG to have an email thread with your comment about not being =
aware that I could point to in the shepherd report. &nbsp;Thank you for =
your kindness in avoiding discussion and giving me 2 email pointers. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Your red-faced IDR =
Co-chair, <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Sue =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Idr [mailto:idr-bounces@ietf.org] <b>On Behalf Of </b>Adrian =
Farrel<br><b>Sent:</b> Thursday, October 08, 2015 1:40 PM<br><b>To:</b> =
'Susan Hares'; idr@ietf.org<br><b>Subject:</b> Re: [Idr] =
draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements from Stefano =
and Adrian Farell<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
lang=3DEN-GB style=3D'color:#1F497D'>Hi Sue,<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB =
style=3D'color:#1F497D'>Attached.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB style=3D'color:#1F497D'>And then, =
of course, I just posted the latest revision as can be seen by the =
datatracker, and that version includes...<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB =
style=3D'color:#1F497D'>&nbsp;&nbsp; This Internet-Draft is submitted in =
full conformance with the<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB =
style=3D'color:#1F497D'>&nbsp;&nbsp; provisions of BCP 78 and BCP =
79.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB style=3D'color:#1F497D'>But, to =
avoid a discussion:<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-GB style=3D'color:#1F497D'>&nbsp; No, I am not aware of any =
IPR related to this document that has not already been =
disclosed.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB =
style=3D'color:#1F497D'>Thanks,<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB =
style=3D'color:#1F497D'>Adrian<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt'><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Susan Hares [<a =
href=3D"mailto:shares@ndzh.com">mailto:shares@ndzh.com</a>] =
<br><b>Sent:</b> 08 October 2015 17:59<br><b>To:</b> <a =
href=3D"mailto:idr@ietf.org">idr@ietf.org</a>; 'Adrian Farrel'; <a =
href=3D"mailto:sprevidi@cisco.com">sprevidi@cisco.com</a>'<br><b>Cc:</b> =
'Alvaro Retana (aretana)'<br><b>Subject:</b> =
draft-ietf-idr-ls-distribution-12.txt - Need IPR Statements from Stefano =
and Adrian Farell <o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><span lang=3DEN-GB><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal>Stefano and Adrian: <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>We cannot =
finishing processing of draft-ietf-idr-ls-distribution until you answers =
the WG LC IPR Statement<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Do you know =
if any IPR other than the disclosure WG IPR at: <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><a =
href=3D"https://datatracker.ietf.org/ipr/1864/">https://datatracker.ietf.=
org/ipr/1864/</a><o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sue Hares =
<o:p></o:p></p><p class=3DMsoNormal>For Shepherd Jie =
Dong<o:p></o:p></p></div></div></body></html>
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IDR interim for 10/12 cancelled. 

 

Sue Hares 


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interim for 10/12 cancelled. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sue Hares =
<o:p></o:p></p></div></body></html>
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From: Mach Chen <mach.chen@huawei.com>
To: "Alvaro Retana (aretana)" <aretana@cisco.com>, "rtg-ads@tools.ietf.org" <rtg-ads@tools.ietf.org>
Thread-Topic: [RTG-DIR] RtgDir review: draft-ietf-idr-add-path-10.txt
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Subject: Re: [Idr] [RTG-DIR] RtgDir review: draft-ietf-idr-add-path-10.txt
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Hi Alvaro,

I have reviewed the latest version, it addresses my comments.

Thanks,
Mach

> -----Original Message-----
> From: Alvaro Retana (aretana) [mailto:aretana@cisco.com]
> Sent: Thursday, October 08, 2015 2:51 AM
> To: Mach Chen; rtg-ads@tools.ietf.org
> Cc: idr@ietf.org; draft-ietf-idr-add-paths.all@tools.ietf.org; rtg-dir@ie=
tf.org
> Subject: Re: [RTG-DIR] RtgDir review: draft-ietf-idr-add-path-10.txt
>=20
> On 5/7/15, 8:52 AM, "Mach Chen" <mach.chen@huawei.com> wrote:
>=20
> <Wearing author hat.>
>=20
> Mach:
>=20
> Hi!
>=20
> I just published an update that should address your comments.  Please tak=
e a
> look.
>=20
> Thanks!
>=20
> Alvaro.
>=20
> >Hello,
> >
> >I have been selected as the Routing Directorate reviewer for this draft.
> >The Routing Directorate seeks to review all routing or routing-related
> >drafts as they pass through IETF last call and IESG review, and
> >sometimes on special request. The purpose of the review is to provide
> >assistance to the Routing ADs. For more information about the Routing
> >Directorate, please see
> >http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir
> >
> >Although these comments are primarily for the use of the Routing ADs,
> >it would be helpful if you could consider them along with any other
> >IETF Last Call comments that you receive, and strive to resolve them
> >through discussion or by updating the draft.
> >
> >Document: draft-ietf-idr-add-path-10.txt
> >Reviewer: Mach Chen
> >Review Date: 2015/05/07
> >IETF LC End Date: Not known
> >Intended Status: Standards Track
> >
> >Summary:
> > This document is basically ready for publication, but has nits that
> >should be considered prior to publication.
> >
> >Comments:
> > The document is well written and easy to read.
> >
> >Major Issues:
> > No major issues found.
> >
> >Minor Issues:
> > No minor issues found.
> >
> >Nits:
> >
> >Abstract and Introduction
> >
> >s/In this document we propose/This document defines
> >
> >
> >Introduction
> >
> >s/"Send-update Process"/Send-update Process, to align with the usage as
> >in RFC4271.
> >
> >Section 4
> >
> >"Send/Receive:
> >
> >         This field indicates whether the sender is (a) able to receive
> >         multiple paths from its peer (value 1), (b) able to send
> >         multiple paths to its peer (value 2), or (c) both (value 3) for
> >         the <AFI, SAFI>."
> >
> >How about other values and what's the process when received value other
> >than 1, 2 and 3?
> >
> >
> >Section 5
> >
> >OLD:
> >" A BGP speaker MUST follow the existing procedures in generating an
> >   UPDATE message for a particular <AFI, SAFI> to a peer unless the
> >BGP..."
> >
> >NEW:
> >"A BGP speaker MUST follow the procedures defined in [RFC4271] in
> >generating an
> >   UPDATE message for a particular <AFI, SAFI> to a peer unless the
> >BGP..."
> >"
> >
> >Best regards,
> >Mach


From nobody Mon Oct 12 05:49:14 2015
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Subject: [Idr] [Errata Held for Document Update] RFC4271 (4496)
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The following errata report has been held for document update 
for RFC4271, "A Border Gateway Protocol 4 (BGP-4)". 

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=4271&eid=4496

--------------------------------------
Status: Held for Document Update
Type: Editorial

Reported by: Alexander Okonnikov <alexander.okonnikov@gmail.com>
Date Reported: 2015-10-10
Held by: Alvaro Retana (IESG)

Section: 9.1.1

Original Text
-------------
... If the return value indicates the route is
      ineligible, the route MAY NOT serve as an input to the next phase
      of route selection; ...

Corrected Text
--------------
... If the return value indicates the route is
      ineligible, the route MUST NOT serve as an input to the next phase
      of route selection; ...

Notes
-----
RFC 2119 does not define special word MAY NOT. Obviously, ineligible route must not be used in route selection.
====

--------------------------------------
RFC4271 (draft-ietf-idr-bgp4-26)
--------------------------------------
Title               : A Border Gateway Protocol 4 (BGP-4)
Publication Date    : January 2006
Author(s)           : Y. Rekhter, Ed., T. Li, Ed., S. Hares, Ed.
Category            : DRAFT STANDARD
Source              : Inter-Domain Routing
Area                : Routing
Stream              : IETF
Verifying Party     : IESG


From nobody Mon Oct 12 07:27:55 2015
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Subject: [Idr] CORRECTED DATE: IDR WG Virtual Interim Meeting: 26 October 2015
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The Inter-Domain Routing (idr) working group will hold a virtual interim meeting on October 26, 2015.  This meeting replaces the previously announced virtual interim meeting for October 30, 2015.

Time for the virtual interim meeting: 22:00 - 23:30 EDT

Preview of IETF Drafts including: 
nexthop drafts 
flow-spec drafts


From nobody Mon Oct 12 19:58:35 2015
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From: "Sriram, Kotikalapudi" <kotikalapudi.sriram@nist.gov>
To: "grow@ietf.org" <grow@ietf.org>
Thread-Topic: [GROW] I-D Action: draft-ietf-grow-route-leak-problem-definition-03.txt
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Subject: Re: [Idr] [GROW] I-D Action: draft-ietf-grow-route-leak-problem-definition-03.txt
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This version (draft-ietf-grow-route-leak-problem-definition-03)=20
is a significantly revised and updated draft relative to version-02.
The document (version-02) was in WGLC in the GROW WG.
Many thanks to Charles, Jeff, Wes and Andrei for their
review, comments, and support in response to WGLC=20
in GROW (it was cross posted to IDR as well).=20
The authors have considered all their comments/suggestions in revising this=
 draft,=20
and we feel that it has significantly benefited  from their recent review/r=
e-review.=20

Cross posting this message to the IDR list because=20
there has been some interest in this document in IDR as well.
A companion draft on route leaks solution is currently a WG draft in IDR.  =
=20

Sriram


________________________________________
From: GROW <grow-bounces@ietf.org> on behalf of internet-drafts@ietf.org <i=
nternet-drafts@ietf.org>
Sent: Monday, October 12, 2015 10:37 PM
To: i-d-announce@ietf.org
Cc: grow@ietf.org
Subject: [GROW] I-D Action:     draft-ietf-grow-route-leak-problem-definiti=
on-03.txt

A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
 This draft is a work item of the Global Routing Operations Working Group o=
f the IETF.

        Title           : Problem Definition and Classification of BGP Rout=
e Leaks
        Authors         : Kotikalapudi Sriram
                          Doug Montgomery
                          Danny McPherson
                          Eric Osterweil
                          Brian Dickson
        Filename        : draft-ietf-grow-route-leak-problem-definition-03.=
txt
        Pages           : 11
        Date            : 2015-10-12

Abstract:
   A systemic vulnerability of the Border Gateway Protocol routing
   system, known as 'route leaks', has received significant attention in
   recent years.  Frequent incidents that result in significant
   disruptions to Internet routing are labeled "route leaks", but to
   date we have lacked a common definition of the term.  In this
   document, we provide a working definition of route leaks, keeping in
   mind the real occurrences that have received significant attention.
   Further, we attempt to enumerate (though not exhaustively) different
   types of route leaks based on observed events on the Internet.  We
   aim to provide a taxonomy that covers several forms of route leaks
   that have been observed and are of concern to Internet user community
   as well as the network operator community.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-grow-route-leak-problem-definit=
ion/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-grow-route-leak-problem-definition-0=
3

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-grow-route-leak-problem-defi=
nition-03


Please note that it may take a couple of minutes from the time of submissio=
n
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
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From: "Susan Hares" <shares@ndzh.com>
To: "'VAN DE VELDE, Gunter \(Gunter\)'" <gunter.van_de_velde@alcatel-lucent.com>,  <idr@ietf.org>
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Cc: "'Keyur Patel \(keyupate\)'" <keyupate@cisco.com>
Subject: Re: [Idr] New draft - Flowspec Path Redirect
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Gunter:=20

=20

I am responding to the beginning of this thread to indicate my review of =
the mail thread from until 10/8.=20

=20

General comment:=20

=C2=B7         Extended community is a redirect =
=E2=80=98path-id=E2=80=99 (128bit/32 bit)  which is similar to the =
draft-hao-idr-flowspec-redirect-tunnel-00.txt.=20

=C2=B7         Your draft assumes as localized path-id indexed table.  =
Draft-hao-idr-flowspec-redirct-tunnel-00.txt assumes an extensions to =
the BGP Tunnel Encapsulation Attribute that points to a tunnel. =20

=C2=B7         Your extended community TID + C (Copy) bit.   The =
draft-hao-idr-flowspec-redirect-tunnel-00.txt contains =E2=80=9CC (Copy) =
bit.=20

=C2=B7         Your TID states =E2=80=93 =E2=80=9Cto provide the router =
consuming the flowspec rule an indication of how and where to use the =
path-id when redirectin traffic=E2=80=9D.  No further details are =
provided for this field so it is difficult to understand it.=20

=20

As far as I can tell you have not answered the following questions:=20

=C2=B7         What is the expected system action when the redirect path =
is down (assuming you have tools to detect it) or next hop you are =
redirecting it to is unreachable ? (Robert Razuk)?

o   [Lucy] We need use case integrity inspection. For this reason, I =
agree with Robert, we need first specifying PATH ID semantics that is =
relevant to BGP. =20

o   [Jeff]: This is also one of my two major concerns about this draft.  =
The path-id is not only completely arbitrary in the current draft, but =
also opaque.  This leads to issues with validation, but it also leads to =
the question about synchronization or coordination of path-ids at =
various routers in the AS.

o   pHeff

=C2=B7         [Jeff/Lucy=E2=80=99s comment]:  How Path-id and redirect =
ID are totally different aspects?=20

o   [Lucy] if redirect via an IP tunnel, I don=E2=80=99t see much =
difference for redirect action. BGP can validate the tunnel =
reachability. If the path identified by PATH_ID is implemented by =
different technologies and/or protocols, you are right, the aspect can =
be very different. However, the difference is not at redirect action =
itself; it is how BGP control plane can validate the path existence on =
the data plane and control them. If BGP can do that properly, we can =
apply such path for a router or a flow spec.

o   [Lucy] We need use case integrity inspection. For this reason, I =
agree with Robert, we need first specifying PATH ID semantics that is =
relevant to BGP. =20

o   [Jeff]: This is also one of my two major concerns about this draft.  =
The path-id is not only completely arbitrary in the current draft, but =
also opaque.  This leads to issues with validation, but it also leads to =
the question about synchronization or coordination of path-ids at =
various routers in the AS.

=C2=A7  Are there requirements to synchronize the path-ids?

=C2=A7  Are the path-ids intended to have "anycast" type properties?

=C2=A7  [Jeff] Any new drafts covering traffic redirection *MUST* =
document how they operate with regard to other redirection mechanisms.  =
This is required not only for interoperability, but also to be clear =
about the precedence of forwarding behaviors when multiple such =
behaviors are present.

o   [Jeff] One question I have is whether this behavior is being sought =
because there is the impression that arbitrary tunneling is not =
currently possible.  It's generally understood in the redirect-ip =
document that the referenced address may be at the end of a tunnel.  =
That tunnel is intended to be discovered by the BGP speaker in a fashion =
similar to resolving L3VPN nexthop addresses.  If this mechanism isn't =
seen to be quite sufficient, perhaps utilizing an additional flag bit in =
the Reserved field may help with some additional semantics?

=20

=C2=B7         Set-up of tunnel

o   Gunter: A tunnel is setup between head-end and tail-end=E2=80=A6 so =
to direct a recipient router to send interesting traffic into an =
engineered tunnel and at the same time  exchange the tunnel setup =
parameters is non-trivial.

o   [Lucy] This is what draft-ietf-idr-redirect-ip specified. To =
redirect a flow over an IP tunnel brings the benefit to keep the flow =
packet IP dest on the tunneled packet and carries the redirect point IP =
address as outer src IP, which is useful for other applications. For =
example, which location the flow packet is sent to and which location =
the flow packet is redirected at. To redirect over an IP tunnel, this =
draft can easily be extended to cover that.

=C2=B7         Why you consider this draft to be =
=E2=80=9Csimple=E2=80=9D [Sue Hares]=20

It would be good to plan to cover this information for interim (if you =
present), and at IETF. We will be scheduling the flowspec and path =
drafts during the same time period. =20

Sue Hares=20

=20

From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of VAN DE VELDE, =
Gunter (Gunter)
Sent: Wednesday, September 23, 2015 4:18 AM
To: idr@ietf.org
Subject: [Idr] New draft - Flowspec Path Redirect

=20

Hi Folks,

=20

We have created a new draft to allow the capability to have Flowspec =
signal a redirect to tunnel/LSP.

=20

https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-path-redirect-0=
0

=20

The base principle is to use the indirection capability of BGP for path =
redirection.

=20

This proposal defines a new flowspec community to signal a redirect =
=E2=80=98path-id=E2=80=99. This path-id is is either a 128bit or 32bit =
value=20

Assumed is that recipient router supporting path-id redirect have a =
localised path-id indexed table containing LSP/tunnel encapsulation =
information.

Existing technology can be used to construct/create this table (LDP, SR, =
RSVP, manual-config, etc=E2=80=A6) on a recipient router. The LSP/tunnel =
encap table is indexed using 32 or 128 bit values.

  =20

Flowspec path-id community is used to activate a redirect LSP/tunnel and =
provide by indirection the LSP/tunnel information for the flowspec =
identified traffic towards the LSP/tunnel.=20

=20

Benefits:=20

*	no need for signalling labels or extra encap in BGP
*	Each path-id indexed LSP/tunnel table is a localised construct
*	existing technology is used to construct the path-id indexed localised =
table
*	Compatibility with technologies already using 32 or 128 bit =
identifiers for paths and sessions
*	Easy for flow spec to signal as it introduces no need to signal labels =
etc=E2=80=A6 no conflicts with existing label exchange technologies

Feedback welcome.

=20

G/


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Gunter: <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>I am responding to the beginning of this thread to indicate my review =
of the mail thread from until 10/8. <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><b><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>General comment: <o:p></o:p></span></b></p><p =
class=3DMsoListParagraph style=3D'text-indent:-.25in;mso-list:l2 level1 =
lfo2'><![if !supportLists]><span =
style=3D'font-size:11.0pt;font-family:Symbol;color:#1F497D'><span =
style=3D'mso-list:Ignore'>=C2=B7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Extended community is a redirect =E2=80=98path-id=E2=80=99 (128bit/32 =
bit) =C2=A0which is similar to the =
draft-hao-idr-flowspec-redirect-tunnel-00.txt. <o:p></o:p></span></p><p =
class=3DMsoListParagraph style=3D'text-indent:-.25in;mso-list:l2 level1 =
lfo2'><![if !supportLists]><span =
style=3D'font-size:11.0pt;font-family:Symbol;color:#1F497D'><span =
style=3D'mso-list:Ignore'>=C2=B7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Your draft assumes as localized path-id indexed table.=C2=A0 =
Draft-hao-idr-flowspec-redirct-tunnel-00.txt assumes an extensions to =
the BGP Tunnel Encapsulation Attribute that points to a tunnel.=C2=A0 =
<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-.25in;mso-list:l2 level1 lfo2'><![if =
!supportLists]><span =
style=3D'font-size:11.0pt;font-family:Symbol;color:#1F497D'><span =
style=3D'mso-list:Ignore'>=C2=B7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Your extended community TID + C (Copy) bit.=C2=A0=C2=A0 The =
draft-hao-idr-flowspec-redirect-tunnel-00.txt contains =E2=80=9CC (Copy) =
bit. <o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-.25in;mso-list:l2 level1 lfo2'><![if =
!supportLists]><span =
style=3D'font-size:11.0pt;font-family:Symbol;color:#1F497D'><span =
style=3D'mso-list:Ignore'>=C2=B7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Your TID states =E2=80=93 =E2=80=9Cto provide the router consuming =
the flowspec rule an indication of how and where to use the path-id when =
redirectin traffic=E2=80=9D.=C2=A0 No further details are provided for =
this field so it is difficult to understand it. <o:p></o:p></span></p><p =
class=3DMsoPlainText><o:p>&nbsp;</o:p></p><p class=3DMsoPlainText>As far =
as I can tell you have not answered the following questions: =
<o:p></o:p></p><p class=3DMsoPlainText =
style=3D'margin-left:.5in;text-indent:-.25in;mso-list:l2 level1 =
lfo2'><![if !supportLists]><span style=3D'font-family:Symbol'><span =
style=3D'mso-list:Ignore'>=C2=B7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]>What is the expected system action when =
the redirect path is down (assuming you have tools to detect it) or next =
hop you are redirecting it to is unreachable ? (Robert =
Razuk)?<o:p></o:p></p><p class=3DMsoPlainText =
style=3D'margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 =
lfo2'><![if !supportLists]><span style=3D'font-family:"Courier =
New"'><span style=3D'mso-list:Ignore'>o<span style=3D'font:7.0pt "Times =
New Roman"'>&nbsp;&nbsp; </span></span></span><![endif]>[Lucy] =
<b><i><span style=3D'color:#1F497D'>We need use case integrity =
inspection. For this reason, I agree with Robert, we need first =
specifying PATH ID semantics that is relevant to BGP. =
&nbsp;</span></i></b><o:p></o:p></p><p class=3DMsoPlainText =
style=3D'margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 =
lfo2'><![if !supportLists]><span style=3D'font-family:"Courier =
New"'><span style=3D'mso-list:Ignore'>o<span style=3D'font:7.0pt "Times =
New Roman"'>&nbsp;&nbsp; </span></span></span><![endif]>[Jeff]: This is =
also one of my two major concerns about this draft.=C2=A0 The path-id is =
not only completely arbitrary in the current draft, but also =
opaque.=C2=A0 This leads to issues with validation, but it also leads to =
the question about synchronization or coordination of path-ids at =
various routers in the AS.<o:p></o:p></p><p class=3DMsoPlainText =
style=3D'margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 =
lfo2'><![if !supportLists]><span style=3D'font-family:"Courier =
New"'><span style=3D'mso-list:Ignore'>o<span style=3D'font:7.0pt "Times =
New Roman"'>&nbsp;&nbsp; =
</span></span></span><![endif]>pHeff<o:p></o:p></p><p =
class=3DMsoPlainText =
style=3D'margin-left:.5in;text-indent:-.25in;mso-list:l2 level1 =
lfo2'><![if !supportLists]><span style=3D'font-family:Symbol'><span =
style=3D'mso-list:Ignore'>=C2=B7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]>[Jeff/Lucy=E2=80=99s comment]: =C2=A0How =
Path-id and redirect ID are totally different aspects? <o:p></o:p></p><p =
class=3DMsoPlainText =
style=3D'margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 =
lfo2'><![if !supportLists]><span style=3D'font-family:"Courier =
New"'><span style=3D'mso-list:Ignore'>o<span style=3D'font:7.0pt "Times =
New Roman"'>&nbsp;&nbsp; </span></span></span><![endif]><b><i><span =
style=3D'color:#1F497D'>[Lucy] if redirect via an IP tunnel, I =
don=E2=80=99t see much difference for redirect action. BGP can validate =
the tunnel reachability. If the path identified by PATH_ID is =
implemented by different technologies and/or protocols, you are right, =
the aspect can be very different. However, the difference is not at =
redirect action itself; it is how BGP control plane can validate the =
path existence on the data plane and control them. If BGP can do that =
properly, we can apply such path for a router or a flow =
spec.</span></i></b><o:p></o:p></p><p class=3DMsoPlainText =
style=3D'margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 =
lfo2'><![if !supportLists]><span style=3D'font-family:"Courier =
New"'><span style=3D'mso-list:Ignore'>o<span style=3D'font:7.0pt "Times =
New Roman"'>&nbsp;&nbsp; </span></span></span><![endif]>[Lucy] =
<b><i><span style=3D'color:#1F497D'>We need use case integrity =
inspection. For this reason, I agree with Robert, we need first =
specifying PATH ID semantics that is relevant to BGP. =
&nbsp;</span></i></b><o:p></o:p></p><p class=3DMsoPlainText =
style=3D'margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 =
lfo2'><![if !supportLists]><span style=3D'font-family:"Courier =
New"'><span style=3D'mso-list:Ignore'>o<span style=3D'font:7.0pt "Times =
New Roman"'>&nbsp;&nbsp; </span></span></span><![endif]>[Jeff]: This is =
also one of my two major concerns about this draft.=C2=A0 The path-id is =
not only completely arbitrary in the current draft, but also =
opaque.=C2=A0 This leads to issues with validation, but it also leads to =
the question about synchronization or coordination of path-ids at =
various routers in the AS.<o:p></o:p></p><p class=3DMsoPlainText =
style=3D'margin-left:1.5in;text-indent:-.25in;mso-list:l2 level3 =
lfo2'><![if !supportLists]><span style=3D'font-family:Wingdings'><span =
style=3D'mso-list:Ignore'>=C2=A7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]>Are there requirements to =
synchronize the path-ids?<o:p></o:p></p><p class=3DMsoPlainText =
style=3D'margin-left:1.5in;text-indent:-.25in;mso-list:l2 level3 =
lfo2'><![if !supportLists]><span style=3D'font-family:Wingdings'><span =
style=3D'mso-list:Ignore'>=C2=A7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]>Are the path-ids intended =
to have &quot;anycast&quot; type properties?<o:p></o:p></p><p =
class=3DMsoPlainText =
style=3D'margin-left:1.5in;text-indent:-.25in;mso-list:l2 level3 =
lfo2'><![if !supportLists]><span style=3D'font-family:Wingdings'><span =
style=3D'mso-list:Ignore'>=C2=A7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp; </span></span></span><![endif]>[Jeff] Any new drafts =
covering traffic redirection *MUST* document how they operate with =
regard to other redirection mechanisms.=C2=A0 This is required not only =
for interoperability, but also to be clear about the precedence of =
forwarding behaviors when multiple such behaviors are =
present.<o:p></o:p></p><p class=3DMsoPlainText =
style=3D'margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 =
lfo2'><![if !supportLists]><span style=3D'font-family:"Courier =
New"'><span style=3D'mso-list:Ignore'>o<span style=3D'font:7.0pt "Times =
New Roman"'>&nbsp;&nbsp; </span></span></span><![endif]>[Jeff] One =
question I have is whether this behavior is being sought because there =
is the impression that arbitrary tunneling is not currently =
possible.=C2=A0 It's generally understood in the redirect-ip document =
that the referenced address may be at the end of a tunnel.=C2=A0 That =
tunnel is intended to be discovered by the BGP speaker in a fashion =
similar to resolving L3VPN nexthop addresses.=C2=A0 If this mechanism =
isn't seen to be quite sufficient, perhaps utilizing an additional flag =
bit in the Reserved field may help with some additional =
semantics?<o:p></o:p></p><p class=3DMsoPlainText =
style=3D'margin-left:.75in'><o:p>&nbsp;</o:p></p><p =
class=3DMsoListParagraph style=3D'text-indent:-.25in;mso-list:l2 level1 =
lfo2'><![if !supportLists]><span =
style=3D'font-size:11.0pt;font-family:Symbol;color:#1F497D'><span =
style=3D'mso-list:Ignore'>=C2=B7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><b><i><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Set-up of tunnel</span></i></b><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 =
lfo2'><![if !supportLists]><span =
style=3D'font-size:11.0pt;font-family:"Courier New";color:#1F497D'><span =
style=3D'mso-list:Ignore'>o<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp; </span></span></span><![endif]>Gunter: A tunnel is =
setup between head-end and tail-end=E2=80=A6 so to direct a recipient =
router to send interesting traffic into an engineered tunnel and at the =
same time&nbsp; exchange the tunnel setup parameters is =
non-trivial.<span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:1.0in;text-indent:-.25in;mso-list:l2 level2 =
lfo2'><![if !supportLists]><span =
style=3D'font-size:11.0pt;font-family:"Courier New";color:#1F497D'><span =
style=3D'mso-list:Ignore'>o<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp; </span></span></span><![endif]><b><i><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>[Lucy] This is what draft-ietf-idr-redirect-ip specified. To redirect =
a flow over an IP tunnel brings the benefit to keep the flow packet IP =
dest on the tunneled packet and carries the redirect point IP address as =
outer src IP, which is useful for other applications. For example, which =
location the flow packet is sent to and which location the flow packet =
is redirected at. To redirect over an IP tunnel, this draft can easily =
be extended to cover that.</span></i></b><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-.25in;mso-list:l2 level1 lfo2'><![if =
!supportLists]><span =
style=3D'font-size:11.0pt;font-family:Symbol;color:#1F497D'><span =
style=3D'mso-list:Ignore'>=C2=B7<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><b><i><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Why you consider this draft to be =E2=80=9Csimple=E2=80=9D [Sue =
Hares] </span></i></b><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>It would be good to plan to cover this information for interim (if you =
present), and at IETF. We will be scheduling the flowspec and path =
drafts during the same time period. =C2=A0<o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>Sue Hares <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Idr [mailto:idr-bounces@ietf.org] <b>On Behalf Of </b>VAN DE VELDE, =
Gunter (Gunter)<br><b>Sent:</b> Wednesday, September 23, 2015 4:18 =
AM<br><b>To:</b> idr@ietf.org<br><b>Subject:</b> [Idr] New draft - =
Flowspec Path Redirect<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>Hi Folks,<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
><o:p>&nbsp;</o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>We have created a new draft to allow the capability to have Flowspec =
signal a redirect to tunnel/LSP.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
><o:p>&nbsp;</o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
><a =
href=3D"https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-path-re=
direct-00">https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-path=
-redirect-00</a><o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
><o:p>&nbsp;</o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>The base principle is to use the indirection capability of BGP for path =
redirection.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
><o:p>&nbsp;</o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>This proposal defines a new flowspec community to signal a redirect =
=E2=80=98path-id=E2=80=99. This path-id is is either a 128bit or 32bit =
value&nbsp;<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>Assumed is that recipient router supporting path-id redirect have a =
localised path-id indexed table containing LSP/tunnel encapsulation =
information.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>Existing technology can be used to construct/create this table (LDP, =
SR, RSVP, manual-config, etc=E2=80=A6) on a recipient router. The =
LSP/tunnel encap table is indexed using 32 or 128 bit =
values.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>&nbsp; &nbsp;<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>Flowspec path-id community is used to activate a redirect LSP/tunnel =
and provide by indirection the LSP/tunnel information for the flowspec =
identified traffic towards the =
LSP/tunnel.&nbsp;<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
><o:p>&nbsp;</o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>Benefits:&nbsp;<o:p></o:p></span></p></div><ul type=3Ddisc><li =
class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l1 level1 lfo1'><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>no need =
for signalling labels or extra encap in BGP<o:p></o:p></span></li><li =
class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l1 level1 lfo1'><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>Each =
path-id indexed LSP/tunnel table is a localised =
construct<o:p></o:p></span></li><li class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l1 level1 lfo1'><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>existing =
technology is used to construct the path-id indexed localised =
table<o:p></o:p></span></li><li class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l1 level1 lfo1'><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>Compatibili=
ty with technologies already using 32 or 128 bit identifiers for paths =
and sessions<o:p></o:p></span></li><li class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l1 level1 lfo1'><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>Easy for =
flow spec to signal as it introduces no need to signal labels =
etc=E2=80=A6 no conflicts with existing label exchange =
technologies<o:p></o:p></span></li></ul><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>Feedback welcome.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
><o:p>&nbsp;</o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>G/<o:p></o:p></span></p></div></div></body></html>
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Subject: [Idr] IETF 94 - IDR session Monday 13:00 - 15:00
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AT IETF 94 IDR has a session on Monday from 13:00 - 15:00.   Please send
your request for meeting slots to the chairs (copying both emails
jgs@bgp.nu, shares@ndzh.com).  Remember the IDR policy, no draft = no time
slot. 

 

IDR will be having a Virtual interim on 10/26/2015 from 10:00am - 12:00pm ET
focusing on drafts on flow specification, tunnels, and nexthop technology.
Also, anyone who cannot present at IETF94 and desires a presentation should
contact the chairs regarding presenting at this virtual interim. 

 

Sue Hares and John Scudder


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>AT IETF 94 =
IDR has a session on Monday from 13:00 &#8211; 15:00.&nbsp;&nbsp; Please =
send your request for meeting slots to the chairs (copying both emails =
<a href=3D"mailto:jgs@bgp.nu">jgs@bgp.nu</a>, <a =
href=3D"mailto:shares@ndzh.com">shares@ndzh.com</a>). &nbsp;Remember the =
IDR policy, no draft =3D no time slot. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>IDR will be =
having a Virtual interim on 10/26/2015 from 10:00am &#8211; 12:00pm ET =
focusing on drafts on flow specification, tunnels, and nexthop =
technology.&nbsp; Also, anyone who cannot present at IETF94 and desires =
a presentation should contact the chairs regarding presenting at this =
virtual interim. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sue Hares =
and John Scudder<o:p></o:p></p></div></body></html>
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Subject: Re: [Idr] IETF 94 - IDR session Monday 13:00 - 15:00  (11/2/2015)
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Hi all: 

 

The date for the IDR meeting is 11/2/2015. 

 

Sue 

 

From: Susan Hares [mailto:shares@ndzh.com] 
Sent: Tuesday, October 13, 2015 8:24 AM
To: idr@ietf.org
Cc: 'John G. Scudder'; 'Susan Hares'
Subject: IETF 94 - IDR session Monday 13:00 - 15:00 

 

AT IETF 94 IDR has a session on Monday from 13:00 - 15:00.   Please send
your request for meeting slots to the chairs (copying both emails
jgs@bgp.nu, shares@ndzh.com).  Remember the IDR policy, no draft = no time
slot. 

 

IDR will be having a Virtual interim on 10/26/2015 from 10:00am - 12:00pm ET
focusing on drafts on flow specification, tunnels, and nexthop technology.
Also, anyone who cannot present at IETF94 and desires a presentation should
contact the chairs regarding presenting at this virtual interim. 

 

Sue Hares and John Scudder


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Hi all: <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>The date for the IDR =
meeting is 11/2/2015. <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Sue =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Susan Hares [mailto:shares@ndzh.com] <br><b>Sent:</b> Tuesday, October =
13, 2015 8:24 AM<br><b>To:</b> idr@ietf.org<br><b>Cc:</b> 'John G. =
Scudder'; 'Susan Hares'<br><b>Subject:</b> IETF 94 - IDR session Monday =
13:00 - 15:00 <o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>AT IETF 94 =
IDR has a session on Monday from 13:00 &#8211; 15:00.&nbsp;&nbsp; Please =
send your request for meeting slots to the chairs (copying both emails =
<a href=3D"mailto:jgs@bgp.nu">jgs@bgp.nu</a>, <a =
href=3D"mailto:shares@ndzh.com">shares@ndzh.com</a>). &nbsp;Remember the =
IDR policy, no draft =3D no time slot. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>IDR will be =
having a Virtual interim on 10/26/2015 from 10:00am &#8211; 12:00pm ET =
focusing on drafts on flow specification, tunnels, and nexthop =
technology.&nbsp; Also, anyone who cannot present at IETF94 and desires =
a presentation should contact the chairs regarding presenting at this =
virtual interim. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sue Hares =
and John Scudder<o:p></o:p></p></div></body></html>
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From nobody Wed Oct 14 03:11:40 2015
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Subject: [Idr] I-D Action: draft-ietf-idr-bgp-prefix-sid-01.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Inter-Domain Routing Working Group of the IETF.

        Title           : Segment Routing Prefix SID extensions for BGP
        Authors         : Stefano Previdi
                          Clarence Filsfils
                          Acee Lindem
                          Keyur Patel
                          Arjun Sreekantiah
                          Saikat Ray
                          Hannes Gredler
	Filename        : draft-ietf-idr-bgp-prefix-sid-01.txt
	Pages           : 15
	Date            : 2015-10-14

Abstract:
   Segment Routing (SR) architecture allows a node to steer a packet
   flow through any topological path and service chain by leveraging
   source routing.  The ingress node prepends a SR header to a packet
   containing a set of "segments".  Each segment represents a
   topological or a service-based instruction.  Per-flow state is
   maintained only at the ingress node of the SR domain.

   This document describes the BGP extension for announcing BGP Prefix
   Segment Identifier (BGP Prefix SID) information.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-idr-bgp-prefix-sid/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-idr-bgp-prefix-sid-01

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-bgp-prefix-sid-01


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


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From: "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>
To: "<idr@ietf.org> list" <idr@ietf.org>
Thread-Topic: I-D Action: draft-ietf-idr-bgp-prefix-sid-01.txt
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Subject: Re: [Idr] I-D Action: draft-ietf-idr-bgp-prefix-sid-01.txt
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Hi,

fixed a typo in the iana section and added clarification text.

Thanks.
s.


> On Oct 14, 2015, at 12:11 PM, internet-drafts@ietf.org wrote:
>=20
>=20
> A New Internet-Draft is available from the on-line Internet-Drafts direct=
ories.
> This draft is a work item of the Inter-Domain Routing Working Group of th=
e IETF.
>=20
>        Title           : Segment Routing Prefix SID extensions for BGP
>        Authors         : Stefano Previdi
>                          Clarence Filsfils
>                          Acee Lindem
>                          Keyur Patel
>                          Arjun Sreekantiah
>                          Saikat Ray
>                          Hannes Gredler
> 	Filename        : draft-ietf-idr-bgp-prefix-sid-01.txt
> 	Pages           : 15
> 	Date            : 2015-10-14
>=20
> Abstract:
>   Segment Routing (SR) architecture allows a node to steer a packet
>   flow through any topological path and service chain by leveraging
>   source routing.  The ingress node prepends a SR header to a packet
>   containing a set of "segments".  Each segment represents a
>   topological or a service-based instruction.  Per-flow state is
>   maintained only at the ingress node of the SR domain.
>=20
>   This document describes the BGP extension for announcing BGP Prefix
>   Segment Identifier (BGP Prefix SID) information.
>=20
>=20
>=20
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-idr-bgp-prefix-sid/
>=20
> There's also a htmlized version available at:
> https://tools.ietf.org/html/draft-ietf-idr-bgp-prefix-sid-01
>=20
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-idr-bgp-prefix-sid-01
>=20
>=20
> Please note that it may take a couple of minutes from the time of submiss=
ion
> until the htmlized version and diff are available at tools.ietf.org.
>=20
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>=20
> _______________________________________________
> I-D-Announce mailing list
> I-D-Announce@ietf.org
> https://www.ietf.org/mailman/listinfo/i-d-announce
> Internet-Draft directories: http://www.ietf.org/shadow.html
> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt


From nobody Wed Oct 14 07:48:42 2015
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From: Jeffrey Haas <jhaas@pfrc.org>
To: "Sriram, Kotikalapudi" <kotikalapudi.sriram@nist.gov>
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Subject: Re: [Idr] [GROW] I-D Action: draft-ietf-grow-route-leak-problem-definition-03.txt
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On Tue, Oct 13, 2015 at 02:58:26AM +0000, Sriram, Kotikalapudi wrote:
> This version (draft-ietf-grow-route-leak-problem-definition-03) 
> is a significantly revised and updated draft relative to version-02.
> The document (version-02) was in WGLC in the GROW WG.
> Many thanks to Charles, Jeff, Wes and Andrei for their
> review, comments, and support in response to WGLC 
> in GROW (it was cross posted to IDR as well). 
> The authors have considered all their comments/suggestions in revising this draft, 
> and we feel that it has significantly benefited  from their recent review/re-review. 

Thanks, Sriram.  You've addressed my comments.

Should there be an additional edits, I'd suggest removing "subprefix" and
consistently using "more specific prefix".  

-- Jeff


From nobody Wed Oct 14 08:45:16 2015
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Ben Campbell has entered the following ballot position for
draft-ietf-idr-ls-distribution-12: No Objection

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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

-section 5: "The SAFI assignment does
   NOT need to be out of the range 1-63 and MAY come out of the "First
   Come First Served" range 128-240."

I suspect the all-caps terms don't really apply (especially the
free-floating NOT).

- section 5.1: "available for review by the IDR working group,"

What if that group concludes?



From nobody Wed Oct 14 08:56:26 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
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Hi Ben,

> -section 5: "The SAFI assignment does
>    NOT need to be out of the range 1-63 and MAY come out of the "First
>    Come First Served" range 128-240."
>=20
> I suspect the all-caps terms don't really apply (especially the
> free-floating NOT).

Agreed. 2119 words or other capitalisation in section 5 is bogus.

> - section 5.1: "available for review by the IDR working group,"
>=20
> What if that group concludes?

If that happens before I retire then the Internet is doomed. If it =
happens after  retire,  don't care :-)

OLD
available for review by the IDR working group
NEW
available for review by the IDR working group or the design authority =
for BGP appointed by the IESG in the event that the IDR working group is =
closed.
END

Cheers,
Adrian
--
Read my latest...
Tales from the Wood - Eighteen new fairy tales
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From nobody Wed Oct 14 09:01:23 2015
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Subject: Re: [Idr] Ben Campbell's No Objection on draft-ietf-idr-ls-distribution-12: (with COMMENT)
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On 14 Oct 2015, at 10:55, Adrian Farrel wrote:

> If that happens before I retire then the Internet is doomed. If it 
> happens after  retire,  don't care :-)
>
> OLD
> available for review by the IDR working group
> NEW
> available for review by the IDR working group or the design authority 
> for BGP appointed by the IESG in the event that the IDR working group 
> is closed.
> END

You are not the first to be entertained by that comment--and I only 
entered it a few minutes ago ;-)

But as I said to the first: Even extremely long-lived groups do get 
closed or refactored from time to time. I mentioned this because the RAI 
area had a process RFC that assigned responsibility to specifically 
named, assumed-to-be-long-lived groups (and the area itself), and we now 
need to update it due to the ART merger.

But in any case, your suggested edit looks good to me.


From nobody Wed Oct 14 11:59:03 2015
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Subject: [Idr] Barry Leiba's No Objection on draft-ietf-idr-ls-distribution-12: (with COMMENT)
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Barry Leiba has entered the following ballot position for
draft-ietf-idr-ls-distribution-12: No Objection

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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Nicely written; thanks.  And a particular thanks for the clear guidance
to the DEs in Section 5.1.  I might want to point to this from 5226bis,
which means this might get me off my bum on that.

A minor editorial thing in the Introduction:

   The contents of a Link State Database (LSDB) or a Traffic Engineering
   Database (TED) has the scope of an IGP area.

I don't know what that means.  Might it be this (and might this be a
clearer way to say it)?:

NEW
   The contents of a Link State Database (LSDB) or a Traffic Engineering
   Database (TED) are only visible within their IGP area.
END



From nobody Wed Oct 14 12:13:57 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Barry Leiba'" <barryleiba@computer.org>, "'The IESG'" <iesg@ietf.org>
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Subject: Re: [Idr] Barry Leiba's No Objection on draft-ietf-idr-ls-distribution-12: (with COMMENT)
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Hi Barry,

> A minor editorial thing in the Introduction:
>=20
>    The contents of a Link State Database (LSDB) or a Traffic =
Engineering
>    Database (TED) has the scope of an IGP area.
>=20
> I don't know what that means.  Might it be this (and might this be a
> clearer way to say it)?:
>=20
> NEW
>    The contents of a Link State Database (LSDB) or a Traffic =
Engineering
>    Database (TED) are only visible within their IGP area.
> END

Hmmm. Who can look at these DBs is moot: everything is available at a =
price.

The intent is that the content only refers to information about the =
resources in an IGP area. That is, it is the content that is scoped to =
the area.

Happy to try another form of words, just that the text n the -D =
currently seems cleaner than what  just wrote to explain to you.

Thoughts?

A






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Subject: Re: [Idr] Barry Leiba's No Objection on draft-ietf-idr-ls-distribution-12: (with COMMENT)
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>>    The contents of a Link State Database (LSDB) or a Traffic Engineering
>>    Database (TED) has the scope of an IGP area.
>>
>> I don't know what that means.  Might it be this (and might this be a
>> clearer way to say it)?:
>>
>> NEW
>>    The contents of a Link State Database (LSDB) or a Traffic Engineering
>>    Database (TED) are only visible within their IGP area.
>> END
>
> Hmmm. Who can look at these DBs is moot: everything is available at a price.

Ah.  I was confused because the next sentence talks about wider visibility.

> The intent is that the content only refers to information about the resources
> in an IGP area. That is, it is the content that is scoped to the area.

Does this work, then?:

NEW
   The contents of a Link State Database (LSDB) or a Traffic Engineering
   Database (TED) are only about the resources within their IGP area.
END

b


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From nobody Wed Oct 14 12:31:29 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Barry Leiba'" <barryleiba@computer.org>
References: <20151014185859.13331.31090.idtracker@ietfa.amsl.com>	<087c01d106b4$6cd93830$468ba890$@olddog.co.uk> <CALaySJ+gDxHDdTNXDZWJCTeeLOgD7idqe7o4608WAM6W1=q6dg@mail.gmail.com>
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Date: Wed, 14 Oct 2015 20:31:08 +0100
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Subject: Re: [Idr] Barry Leiba's No Objection on draft-ietf-idr-ls-distribution-12: (with COMMENT)
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Yup.

Maybe s/are only about/only describe/

A

> -----Original Message-----
> From: barryleiba@gmail.com [mailto:barryleiba@gmail.com] On Behalf Of =
Barry
> Leiba
> Sent: 14 October 2015 20:27
> To: adrian@olddog.co.uk
> Cc: The IESG; idr-chairs@ietf.org; =
draft-ietf-idr-ls-distribution@ietf.org;
> idr@ietf.org; aretana@cisco.com; Jie Dong
> Subject: Re: Barry Leiba's No Objection on =
draft-ietf-idr-ls-distribution-12: (with
> COMMENT)
>=20
> >>    The contents of a Link State Database (LSDB) or a Traffic =
Engineering
> >>    Database (TED) has the scope of an IGP area.
> >>
> >> I don't know what that means.  Might it be this (and might this be =
a
> >> clearer way to say it)?:
> >>
> >> NEW
> >>    The contents of a Link State Database (LSDB) or a Traffic =
Engineering
> >>    Database (TED) are only visible within their IGP area.
> >> END
> >
> > Hmmm. Who can look at these DBs is moot: everything is available at =
a price.
>=20
> Ah.  I was confused because the next sentence talks about wider =
visibility.
>=20
> > The intent is that the content only refers to information about the =
resources
> > in an IGP area. That is, it is the content that is scoped to the =
area.
>=20
> Does this work, then?:
>=20
> NEW
>    The contents of a Link State Database (LSDB) or a Traffic =
Engineering
>    Database (TED) are only about the resources within their IGP area.
> END
>=20
> b


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Subject: Re: [Idr] Barry Leiba's No Objection on draft-ietf-idr-ls-distribution-12: (with COMMENT)
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>>Ah.  I was confused because the next sentence talks about wider
>>visibility.
>>
>>> The intent is that the content only refers to information about the
>>>resources
>>> in an IGP area. That is, it is the content that is scoped to the area.
>>
>>Does this work, then?:
>>
>>NEW
>>   The contents of a Link State Database (LSDB) or a Traffic Engineering
>>   Database (TED) are only about the resources within their IGP area.
>>END
>
> True - but it doesn=E2=80=99t capture the necessity for BGP-LS for these
> databases.
>
> I agree with Adrian - any SNMP client (and soon NETCONF client) can =E2=
=80=9Csee=E2=80=9D
> the databases from outside the area as long as there is reachability. If
> =E2=80=9Chas the scope of an IGP area.=E2=80=9D is confusing, one could s=
ay =E2=80=9Cis only
> advertised within an IGP area.=E2=80=9De

That would be clearer to me.  Adrian's "only describe" would work too,
though the two suggestions mean different things, so that has to be
sorted out.

Anyway, you guys have all the input you need from me now, I think.
It's a minor comment, so do what you think is best, and thanks for
considering my comment.

Barry


From nobody Wed Oct 14 14:14:28 2015
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Subject: [Idr] RFC 7674 on Clarification of the Flowspec Redirect Extended Community
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A new Request for Comments is now available in online RFC libraries.

        
        RFC 7674

        Title:      Clarification of the Flowspec Redirect 
                    Extended Community 
        Author:     J. Haas, Ed.
        Status:     Standards Track
        Stream:     IETF
        Date:       October 2015
        Mailbox:    jhaas@juniper.net
        Pages:      7
        Characters: 12704
        Updates:    RFC 5575

        I-D Tag:    draft-ietf-idr-flowspec-redirect-rt-bis-05.txt

        URL:        https://www.rfc-editor.org/info/rfc7674

        DOI:        http://dx.doi.org/10.17487/RFC7674

This document updates RFC 5575 ("Dissemination of Flow Specification
Rules") to clarify the formatting of the BGP Flowspec Redirect
Extended Community.

This document is a product of the Inter-Domain Routing Working Group of the IETF.

This is now a Proposed Standard.

STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the Official
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From nobody Wed Oct 14 14:16:52 2015
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Subject: [Idr] CORRECTED TIME: IDR WG Virtual Interim Meeting: October 26, 2015
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The Inter-Domain Routing (idr) working group will hold a virtual interim meeting on October 26, 2015.  This meeting replaces the previously announced virtual interim meeting for October 30, 2015.

Time for the virtual interim meeting: 10:00-11:30am EDT

Preview of IETF Drafts including: 
nexthop drafts 
flow-spec drafts


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Hi Jeff, I had a couple comments to your message inline below:


On 10/5/2015 3:11 PM, Jeffrey Haas wrote:
> 
> This I-D serves as an interesting melange of ideas.  I suspect at some later
> point you might find it useful to separate the individual changes into
> distinct I-Ds.
> 


Splitting out any good ideas, and leaving the bad or more difficult
ones behind, is definitely the plan.


>> Specifically, the suggested enhancements include:
>> - add packet rate limitations as an action (not just bitrate)
> 
> This one is generally useful and would be a pretty trivial extension.


Everyone that we've talked to has seemed to agree on this, so I think
it looks like we should pull it out into its own document.  We aren't
an equipment vendor with an implementation that could do packet rate
limiting, so I'd think it would be great if we could get a co-editor
from some vendor who could actually implement this ... if you or
someone else might be interested.


>> - add support for filtering of tunneled traffic (unencrypted)
> 
> This is problematic in several interesting ways, some of them implementation
> specific.  But perhaps that really suggests a widening of the deployment
> domain.
> 
> BGP Flowspec is typically deployed in scenarios to effectively program
> firewall filtering on BGP speakers.  Pragmatically, this has meant some
> level of restricting the operations to filters that can be applied at near
> wire-rate and thus we're not always getting a full set of potential
> filtering operations that may be available on devices that work at different
> scale.  
> 
> There's also the second issue in that such directly indexed forms of
> filtering may limit the deployment to cases where flowspec routes are
> directly advertised and not propagated to other BGP speakers.  This is likey
> because when tunneling technologies may change encap/decap on a hop-by-hop
> basis, it becomes difficult to adjust the filters to be fully generic using
> distribution via a Route Reflector - a common deployment scenario for
> Flowspec.  
> 
> Of course, these constraints become different once we're talking about
> non-traditional BGP speakers such as IPS systems, etc.


Agreed on all counts.  I think it motivates having a discussion "up one
level" first, to see what the community believe the future of flowspec
is, in terms of what types of devices in the near future are envisioned
to be utilizing flowspec routes, whether everyone only intends to use
them intra-domain or across one or more AS hops, etc.

Maybe everyone already implicitly agrees on these, and I just haven't
understood, but I think it would help to be explicit.


-- 
Wes Eddy
MTI Systems


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Benoit Claise has entered the following ballot position for
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Thanks for the Manageability Considerations section.
Hopefully draft-ietf-idr-bgp-model covers the BGP-LS specifics



From nobody Thu Oct 15 04:37:26 2015
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----------------------------------------------------------------------
DISCUSS:
----------------------------------------------------------------------


Note: This may sound like a scary discuss, and who knows but
it might lead to us recognising that some significant work is
needed in future, but I think this should be easily fixed for
this particular document... 

This document does recognise that there can be confidentiality
or privacy issues with exporting information in this way. And
it correctly (I think) says that just not sending that
sensitive data is a good way to handle this and that
mechanisms for e.g.  aggregating to ensure privacy are out of
scope. (As an aside: strengthening that recommendation would
be a good thing I think.)

However, noting that e.g. ALTO servers can be handling data
that is privacy sensitive for specific users (e.g. see
https://tools.ietf.org/html/rfc7285#section-15.3 and
https://tools.ietf.org/html/rfc7285#section-15.4), I think
there are two more things that need to be noted here, but that
are not.

(1) First is that this document does change (what I understand,
perhaps imperfectly, as) the security model for BGP, in that
previously we have assumed that BGP speakers are not exposing
user-specific privacy sensitive information. This draft seems
to me to change that. (If it does not, then a reference to
where that was previously done would be needed, or an
explanation of why I'm wrong:-) If you could add a strong
recommendation to not do that, I think that'd be good. (I
do get that that can't be an easily implemented MUST NOT
statement though, so I'm not quite sure what text to
suggest, but it oughtn't be too hard to figure something
out.)

(2) Second, I wonder if the above change means that we need to
seriously consider confidentiality for BGP. The RPKI does not,
but then neither did DNSSEC for years until we belatedly
realised that that was a real issue. I'm not asking that this
draft provide a mechanism for confidentiality for BGP, but
that at least recognising the issue as real (if it is) seems
to be required. (And nor am I asking that a confidentiality
system as complex as the rpki be developed, I think that if
anything is needed here beyond data minimisation, then
transport layer security would be as good as it'd get.) The
change here would be to simply recognise this consequence,
if it is real, and that could be a simple sentennce in the
draft, e.g. saying that these changes to BGP might result
in PII being emitted, and hence might cause a real need
for confidentiality for BGP.





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From: "Adrian Farrel" <adrian@olddog.co.uk>
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Morning Stephen,

> This document does recognise that there can be confidentiality
> or privacy issues with exporting information in this way. And
> it correctly (I think) says that just not sending that
> sensitive data is a good way to handle this and that
> mechanisms for e.g.  aggregating to ensure privacy are out of
> scope. (As an aside: strengthening that recommendation would
> be a good thing I think.)

Just checking which recommendation you are suggesting to strengthen.
The one to not export information you don't want others to see?

> However, noting that e.g. ALTO servers can be handling data
> that is privacy sensitive for specific users (e.g. see
> https://tools.ietf.org/html/rfc7285#section-15.3 and
> https://tools.ietf.org/html/rfc7285#section-15.4), I think
> there are two more things that need to be noted here, but that
> are not.

BGP-LS is not ALTO :-)
The information exchanged is specific to the topology of the network and =
not the location of applications or user resources.

> (1) First is that this document does change (what I understand,
> perhaps imperfectly, as) the security model for BGP, in that
> previously we have assumed that BGP speakers are not exposing
> user-specific privacy sensitive information. This draft seems
> to me to change that. (If it does not, then a reference to
> where that was previously done would be needed, or an
> explanation of why I'm wrong:-)

It is not that is doesn't make the change in the sense you are =
describing it, it is that it does not expose user-specific information =
(unless I am missing something!).

It exposes network-specific information. Someone intercepting a BGP-LS =
message is like someone snooping on an IGP (modulo post-processing =
policy applied to the IGP snoop). I can't see a way in which this =
reveals user-specific information.  Well, I suppose that if you could =
see both the whole topology and the policy filtered topology for a =
specific user you might be able to deduce something - but I don't know =
what.

On the whole, however, I think that "confidentiality" here applies to =
the network operator's information, not to details of the user.

> If you could add a strong
> recommendation to not do that, I think that'd be good. (I
> do get that that can't be an easily implemented MUST NOT
> statement though, so I'm not quite sure what text to
> suggest, but it oughtn't be too hard to figure something
> out.)

I think you are asking for a strong statement recommending that BGP-LS =
not be used to distribute information that could reveal user-specific =
privacy information.

I'd like not to add unfocused apple pie statements (don't use BGP-LS to =
carry your bank details) when there is currently no intent or way to =
carry that information. So, can you clarify what user-specific =
information you think this document is proposing should be carried in =
BGP-LS.

Or are you saying we should add something like:

It should be noted that BGP-LS is a change in paradigm because it is =
used to export information from a network where previously the =
information was retained within that network. Not only should =
deployments be aware of this and consider the confidentiality and =
security implications of distributing routing and topology information =
about a network to nodes outside that network, but future protocol =
extensions defining further information that can be exported northbound =
using BGP-LS should consider carefully whether interception of such =
information could have a negative impact on the confidentiality of users =
of the network.

It's a bit vague!

Furthermore, it is precisely what BGP already does east-west. That is, =
the purpose of BGP is to leak routing information 9at some level of =
detail and aggregation) from inside a routing domain to nodes outside =
that domain.

> (2) Second, I wonder if the above change means that we need to
> seriously consider confidentiality for BGP. The RPKI does not,
> but then neither did DNSSEC for years until we belatedly
> realised that that was a real issue. I'm not asking that this
> draft provide a mechanism for confidentiality for BGP, but
> that at least recognising the issue as real (if it is) seems
> to be required. (And nor am I asking that a confidentiality
> system as complex as the rpki be developed, I think that if
> anything is needed here beyond data minimisation, then
> transport layer security would be as good as it'd get.) The
> change here would be to simply recognise this consequence,
> if it is real, and that could be a simple sentennce in the
> draft, e.g. saying that these changes to BGP might result
> in PII being emitted, and hence might cause a real need
> for confidentiality for BGP.

Please consider as much as you can!
I think the key is to build the threat analysis : what confidential =
information might be leaked?; whose information is it?; who might be =
able to access it?; what might they be able to do with it?
If you, or someone you know who has spare cycles brings this to IDR or =
GROW then I am sure it will be discussed.

Wrt this document, can you convince me that the consequence is real? =
What PII might be emitted using BGP-LS as described here? What more than =
is already stated needs to be added?

Cheers,
Adrian




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Subject: Re: [Idr] Stephen Farrell's Discuss on draft-ietf-idr-ls-distribution-12: (with DISCUSS)
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Hiya,

On 15/10/15 15:00, Adrian Farrel wrote:
> Morning Stephen,
> 
>> This document does recognise that there can be confidentiality or
>> privacy issues with exporting information in this way. And it
>> correctly (I think) says that just not sending that sensitive data
>> is a good way to handle this and that mechanisms for e.g.
>> aggregating to ensure privacy are out of scope. (As an aside:
>> strengthening that recommendation would be a good thing I think.)
> 
> Just checking which recommendation you are suggesting to strengthen. 
> The one to not export information you don't want others to see?

Yes. While it may sound obvious as you state it, it seems that
people constantly do do the wrong thing here and often accidentally,
or not fully considering the scope in which that information will
be visible.

If some text here can help avoid someone writing code that makes
that happen too easily then that could be worthwhile. (But that
general point is not blocking.)

> 
>> However, noting that e.g. ALTO servers can be handling data that is
>> privacy sensitive for specific users (e.g. see 
>> https://tools.ietf.org/html/rfc7285#section-15.3 and 
>> https://tools.ietf.org/html/rfc7285#section-15.4), I think there
>> are two more things that need to be noted here, but that are not.
> 
> BGP-LS is not ALTO :-) The information exchanged is specific to the
> topology of the network and not the location of applications or user
> resources.

Where does it say that? It may well, and I missed it, or it may
say it in a way that's too subtle for me;-)

If that was clearly stated then that would be good.

> 
>> (1) First is that this document does change (what I understand, 
>> perhaps imperfectly, as) the security model for BGP, in that 
>> previously we have assumed that BGP speakers are not exposing 
>> user-specific privacy sensitive information. This draft seems to me
>> to change that. (If it does not, then a reference to where that was
>> previously done would be needed, or an explanation of why I'm
>> wrong:-)
> 
> It is not that is doesn't make the change in the sense you are
> describing it, it is that it does not expose user-specific
> information (unless I am missing something!).
> 
> It exposes network-specific information. Someone intercepting a
> BGP-LS message is like someone snooping on an IGP (modulo
> post-processing policy applied to the IGP snoop). I can't see a way
> in which this reveals user-specific information.  Well, I suppose
> that if you could see both the whole topology and the policy filtered
> topology for a specific user you might be able to deduce something -
> but I don't know what.
> 
> On the whole, however, I think that "confidentiality" here applies to
> the network operator's information, not to details of the user.

If the above is the case then I would agree that this is not a change.

> 
>> If you could add a strong recommendation to not do that, I think
>> that'd be good. (I do get that that can't be an easily implemented
>> MUST NOT statement though, so I'm not quite sure what text to 
>> suggest, but it oughtn't be too hard to figure something out.)
> 
> I think you are asking for a strong statement recommending that
> BGP-LS not be used to distribute information that could reveal
> user-specific privacy information.
> 
> I'd like not to add unfocused apple pie statements (don't use BGP-LS
> to carry your bank details) when there is currently no intent or way

Relying on good intentions will get us where? I do think this draft
provides a way to carry PII, should one want to do that.

For example, an ALTO server may know that it can reach an IPv6 address
in my home. Couldn't that be passed on via this mechanism? And in some
cases, couldn't one regard that prefix as being personally identifying?

> to carry that information. So, can you clarify what user-specific
> information you think this document is proposing should be carried in
> BGP-LS.
> 
> Or are you saying we should add something like:
> 
> It should be noted that BGP-LS is a change in paradigm because it is
> used to export information from a network where previously the
> information was retained within that network. Not only should
> deployments be aware of this and consider the confidentiality and
> security implications of distributing routing and topology
> information about a network to nodes outside that network, but future
> protocol extensions defining further information that can be exported
> northbound using BGP-LS should consider carefully whether
> interception of such information could have a negative impact on the
> confidentiality of users of the network.
> 
> It's a bit vague!

Yep. That change is a good start though.

> Furthermore, it is precisely what BGP already does east-west. That
> is, the purpose of BGP is to leak routing information 9at some level
> of detail and aggregation) from inside a routing domain to nodes
> outside that domain.

Well perhaps it's not too late to (start to) recognise the
increasing security, and now perhaps privacy, implications of
constantly extending BGP to carry more and more stuff? And
in that way to avoid ending up with BGP carrying PII up, down
or sideways.

> 
>> (2) Second, I wonder if the above change means that we need to 
>> seriously consider confidentiality for BGP. The RPKI does not, but
>> then neither did DNSSEC for years until we belatedly realised that
>> that was a real issue. I'm not asking that this draft provide a
>> mechanism for confidentiality for BGP, but that at least
>> recognising the issue as real (if it is) seems to be required. (And
>> nor am I asking that a confidentiality system as complex as the
>> rpki be developed, I think that if anything is needed here beyond
>> data minimisation, then transport layer security would be as good
>> as it'd get.) The change here would be to simply recognise this
>> consequence, if it is real, and that could be a simple sentennce in
>> the draft, e.g. saying that these changes to BGP might result in
>> PII being emitted, and hence might cause a real need for
>> confidentiality for BGP.
> 
> Please consider as much as you can! I think the key is to build the
> threat analysis : what confidential information might be leaked?;
> whose information is it?; who might be able to access it?; what might
> they be able to do with it? If you, or someone you know who has spare
> cycles brings this to IDR or GROW then I am sure it will be
> discussed.
> 
> Wrt this document, can you convince me that the consequence is real?
> What PII might be emitted using BGP-LS as described here? What more
> than is already stated needs to be added?

See above. If I'm wrong that PII available to an ALTO server or to
another BGP speaker could be passed on in this way, then I'll just
clear. If not, then adding your text suggested above could be enough
for me to clear. (We might want to try improve it of course.)

Cheers,
S.

> 
> Cheers, Adrian
> 
> 
> 


From nobody Fri Oct 16 08:09:27 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Stephen Farrell'" <stephen.farrell@cs.tcd.ie>, "'The IESG'" <iesg@ietf.org>
References: <20151015113723.18800.55730.idtracker@ietfa.amsl.com> <01a101d10751$eda42cc0$c8ec8640$@olddog.co.uk> <5621039B.9070808@cs.tcd.ie>
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Cc: draft-ietf-idr-ls-distribution@ietf.org, idr@ietf.org, idr-chairs@ietf.org
Subject: Re: [Idr] Stephen Farrell's Discuss on draft-ietf-idr-ls-distribution-12: (with DISCUSS)
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> > Just checking which recommendation you are suggesting to strengthen.
> > The one to not export information you don't want others to see?
>=20
> Yes. While it may sound obvious as you state it, it seems that
> people constantly do do the wrong thing here and often accidentally,
> or not fully considering the scope in which that information will
> be visible.
>=20
> If some text here can help avoid someone writing code that makes
> that happen too easily then that could be worthwhile. (But that
> general point is not blocking.)

OK.
In other news: don't run with scissors.

> >> However, noting that e.g. ALTO servers can be handling data that is
> >> privacy sensitive for specific users (e.g. see
> >> https://tools.ietf.org/html/rfc7285#section-15.3 and
> >> https://tools.ietf.org/html/rfc7285#section-15.4), I think there
> >> are two more things that need to be noted here, but that are not.
> >
> > BGP-LS is not ALTO :-) The information exchanged is specific to the
> > topology of the network and not the location of applications or user
> > resources.
>=20
> Where does it say that? It may well, and I missed it, or it may
> say it in a way that's too subtle for me;-)
>=20
> If that was clearly stated then that would be good.

How about "North-Bound Distribution of Link-State and TE Information =
using BGP" :-)

> >> (1) First is that this document does change (what I understand,
> >> perhaps imperfectly, as) the security model for BGP, in that
> >> previously we have assumed that BGP speakers are not exposing
> >> user-specific privacy sensitive information. This draft seems to me
> >> to change that. (If it does not, then a reference to where that was
> >> previously done would be needed, or an explanation of why I'm
> >> wrong:-)
> >
> > It is not that is doesn't make the change in the sense you are
> > describing it, it is that it does not expose user-specific
> > information (unless I am missing something!).
> >
> > It exposes network-specific information. Someone intercepting a
> > BGP-LS message is like someone snooping on an IGP (modulo
> > post-processing policy applied to the IGP snoop). I can't see a way
> > in which this reveals user-specific information.  Well, I suppose
> > that if you could see both the whole topology and the policy =
filtered
> > topology for a specific user you might be able to deduce something -
> > but I don't know what.
> >
> > On the whole, however, I think that "confidentiality" here applies =
to
> > the network operator's information, not to details of the user.
>=20
> If the above is the case then I would agree that this is not a change.
>=20
> >
> >> If you could add a strong recommendation to not do that, I think
> >> that'd be good. (I do get that that can't be an easily implemented
> >> MUST NOT statement though, so I'm not quite sure what text to
> >> suggest, but it oughtn't be too hard to figure something out.)
> >
> > I think you are asking for a strong statement recommending that
> > BGP-LS not be used to distribute information that could reveal
> > user-specific privacy information.
> >
> > I'd like not to add unfocused apple pie statements (don't use BGP-LS
> > to carry your bank details) when there is currently no intent or way
>=20
> Relying on good intentions will get us where? I do think this draft
> provides a way to carry PII, should one want to do that.

Yes, but *every* protocol that allows any form of extension to carry =
data that is not yet defined is documented in a "draft [that] provides a =
way to carry PII".=20

I am reminded of the lady who sued her refrigerator manufacturer because =
it fell on her when she stood on the open door to try to change the =
light bulb in her kitchen.

> For example, an ALTO server may know that it can reach an IPv6 address
> in my home. Couldn't that be passed on via this mechanism? And in some
> cases, couldn't one regard that prefix as being personally =
identifying?

Where did ALTO come into this? Second time you've mentioned it, but I =
don't understand why. I think possibly you have misunderstood Figure 3. =
In that picture, BGP-LS is used to provide information to the ALTO =
server, not (as your text seems to suggest) that information from the =
ALTO server is distributed using BGP-LS (see the arrow heads in the =
figure - or read the text ;-)

However, it *is* true that you could choose to run BGP-LS to distribute =
information about what addresses are reachable in a specific network. =
That seems to be the point of a routing protocol! I hope you are not =
going to say that BGP needs a health warning because it leaks =
reachability information from within one network to make it visible in =
another network. The whole point of routing is that it knows what =
addresses exist in your home - without that knowledge, it is pretty =
tough to route packets there.  (And if you decide to "hide" behind a NAT =
or some such, then obviously you have no intention of facilitating =
external influencing of TE within your network, so not only would you =
not use BGP-LS to advertise which addresses are in your network, you =
wouldn't use BGP-LS at all.)

> > to carry that information. So, can you clarify what user-specific
> > information you think this document is proposing should be carried =
in
> > BGP-LS.
> >
> > Or are you saying we should add something like:
> >
> > It should be noted that BGP-LS is a change in paradigm because it is
> > used to export information from a network where previously the
> > information was retained within that network. Not only should
> > deployments be aware of this and consider the confidentiality and
> > security implications of distributing routing and topology
> > information about a network to nodes outside that network, but =
future
> > protocol extensions defining further information that can be =
exported
> > northbound using BGP-LS should consider carefully whether
> > interception of such information could have a negative impact on the
> > confidentiality of users of the network.
> >
> > It's a bit vague!
>=20
> Yep. That change is a good start though.

If it is a "start" then we need to work on it more?
Please suggest changes.
Please don't suggest "Future extensions to BGP-LS SHOULD NOT be used to =
distribute the marital status or sexual orientation of any user of a =
network."

> > Furthermore, it is precisely what BGP already does east-west. That
> > is, the purpose of BGP is to leak routing information 9at some level
> > of detail and aggregation) from inside a routing domain to nodes
> > outside that domain.
>=20
> Well perhaps it's not too late to (start to) recognise the
> increasing security, and now perhaps privacy, implications of
> constantly extending BGP to carry more and more stuff? And
> in that way to avoid ending up with BGP carrying PII up, down
> or sideways.

Who is "constantly extending BGP to carry more and more stuff"?

But on this point, please ask for a slot on the IDR agenda to explain =
the issues to them or write a draft on the dangers. While you are having =
a Discussion (which is the point of a Discuss) I don't think you are =
Discussing this document.

> >> (2) Second, I wonder if the above change means that we need to
> >> seriously consider confidentiality for BGP. The RPKI does not, but
> >> then neither did DNSSEC for years until we belatedly realised that
> >> that was a real issue. I'm not asking that this draft provide a
> >> mechanism for confidentiality for BGP, but that at least
> >> recognising the issue as real (if it is) seems to be required. (And
> >> nor am I asking that a confidentiality system as complex as the
> >> rpki be developed, I think that if anything is needed here beyond
> >> data minimisation, then transport layer security would be as good
> >> as it'd get.) The change here would be to simply recognise this
> >> consequence, if it is real, and that could be a simple sentennce in
> >> the draft, e.g. saying that these changes to BGP might result in
> >> PII being emitted, and hence might cause a real need for
> >> confidentiality for BGP.
> >
> > Please consider as much as you can! I think the key is to build the
> > threat analysis : what confidential information might be leaked?;
> > whose information is it?; who might be able to access it?; what =
might
> > they be able to do with it? If you, or someone you know who has =
spare
> > cycles brings this to IDR or GROW then I am sure it will be
> > discussed.
> >
> > Wrt this document, can you convince me that the consequence is real?
> > What PII might be emitted using BGP-LS as described here? What more
> > than is already stated needs to be added?
>=20
> See above. If I'm wrong that PII available to an ALTO server or to
> another BGP speaker could be passed on in this way, then I'll just
> clear. If not, then adding your text suggested above could be enough
> for me to clear. (We might want to try improve it of course.)

For "we" read "you" :-)

Where I am at the moment is that I don't have any concrete changes to =
make to the document to address your discuss. I do have a woolly =
paragraph that would not be harmful to add (but that would, IMHO, be =
pointless), but that you say is a "start" and you "might want to =
improve". That means I am stuck for a way to advance this document.

Alvaro, can you help?

Thanks,
Adrian






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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Subject: Re: [Idr] Stephen Farrell's Discuss on draft-ietf-idr-ls-distribution-12: (with DISCUSS)
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On 16/10/15 16:08, Adrian Farrel wrote:
> Where did ALTO come into this? Second time you've mentioned it, but I
> don't understand why. I think possibly you have misunderstood Figure
> 3. In that picture, BGP-LS is used to provide information to the ALTO
> server, not (as your text seems to suggest) that information from the
> ALTO server is distributed using BGP-LS (see the arrow heads in the
> figure - or read the text ;-)

Ah. Crap. Mea culpa.

Much as I hate to admit it to your good self, I had gotten the
direction of that arrow arse-ways. And that does mean that there
is no new issue, yes.

I've cleared.

S.


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Subject: [Idr] I-D Action: draft-ietf-idr-ls-distribution-13.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Inter-Domain Routing Working Group of the IETF.

        Title           : North-Bound Distribution of Link-State and TE Information using BGP
        Authors         : Hannes Gredler
                          Jan Medved
                          Stefano Previdi
                          Adrian Farrel
                          Saikat Ray
	Filename        : draft-ietf-idr-ls-distribution-13.txt
	Pages           : 47
	Date            : 2015-10-16

Abstract:
   In a number of environments, a component external to a network is
   called upon to perform computations based on the network topology and
   current state of the connections within the network, including
   traffic engineering information.  This is information typically
   distributed by IGP routing protocols within the network.

   This document describes a mechanism by which links state and traffic
   engineering information can be collected from networks and shared
   with external components using the BGP routing protocol.  This is
   achieved using a new BGP Network Layer Reachability Information
   (NLRI) encoding format.  The mechanism is applicable to physical and
   virtual IGP links.  The mechanism described is subject to policy
   control.

   Applications of this technique include Application Layer Traffic
   Optimization (ALTO) servers, and Path Computation Elements (PCEs).



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-idr-ls-distribution/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-idr-ls-distribution-13

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-ls-distribution-13


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


From nobody Fri Oct 16 09:54:38 2015
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Subject: [Idr] "Final" revision : draft-ietf-idr-ls-distribution-13.txt
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Hi,

This revision has just a couple of very minor nits from IESG review.

Adrian

> -----Original Message-----
> From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of internet-drafts@ietf.org
> Sent: 16 October 2015 17:52
> To: i-d-announce@ietf.org
> Cc: idr@ietf.org
> Subject: [Idr] I-D Action: draft-ietf-idr-ls-distribution-13.txt
> 
> 
> A New Internet-Draft is available from the on-line Internet-Drafts
directories.
>  This draft is a work item of the Inter-Domain Routing Working Group of the
IETF.
> 
>         Title           : North-Bound Distribution of Link-State and TE
Information using
> BGP
>         Authors         : Hannes Gredler
>                           Jan Medved
>                           Stefano Previdi
>                           Adrian Farrel
>                           Saikat Ray
> 	Filename        : draft-ietf-idr-ls-distribution-13.txt
> 	Pages           : 47
> 	Date            : 2015-10-16
> 
> Abstract:
>    In a number of environments, a component external to a network is
>    called upon to perform computations based on the network topology and
>    current state of the connections within the network, including
>    traffic engineering information.  This is information typically
>    distributed by IGP routing protocols within the network.
> 
>    This document describes a mechanism by which links state and traffic
>    engineering information can be collected from networks and shared
>    with external components using the BGP routing protocol.  This is
>    achieved using a new BGP Network Layer Reachability Information
>    (NLRI) encoding format.  The mechanism is applicable to physical and
>    virtual IGP links.  The mechanism described is subject to policy
>    control.
> 
>    Applications of this technique include Application Layer Traffic
>    Optimization (ALTO) servers, and Path Computation Elements (PCEs).
> 
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-idr-ls-distribution/
> 
> There's also a htmlized version available at:
> https://tools.ietf.org/html/draft-ietf-idr-ls-distribution-13
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-ls-distribution-13
> 
> 
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr


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From: Uma Chunduri <uma.chunduri@ericsson.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "idr@ietf.org" <idr@ietf.org>
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Subject: Re: [Idr] "Final" revision : draft-ietf-idr-ls-distribution-13.txt
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Could glanced through "-12" updates too.

Have minor suggestions:


1. Section 3.2.1.4 - BGP-LS Identifier:
     "The ASN, BGP Router-ID tuple (which is globally unique
      [RFC6286] ) of one of the BGP-LS speakers within the flooding-set
      (or IGP domain) may be used for all BGP-LS speakers in that
      flooding-set (or IGP domain)."

      Would suggest "may be used" to "MAY be used"

      Perhaps this has been discussed earlier, but RFC 6286 requirement is =
"unique" with in AS, which fits well for=20
      a router-ID but the LS-Identifier being talked about has to be "same"=
 with the IGP flooding domain.=20
      So to me, actually I am not really sure why we should add this statem=
ent at all.

Typo?:

2.  Section 3.3.3:
     "   Prefixes are learned from the IGP topology (IS-IS or OSPF) with a =
set
   of IGP attributes (such as metric, route tags, etc.) that MUST be
   reflected into the BGP-LS attribute with a link NLRI."

   =20
    ".. attribute with a link NLRI" =3D=3D> ".. attribute with a prefix NLR=
I"

Nit:
3. Section 3.1:

     "of the
   string. .  All TLVs that are not specified as mandatory are
   considered optional."

--
Uma C.

-----Original Message-----
From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Adrian Farrel
Sent: Friday, October 16, 2015 9:54 AM
To: idr@ietf.org
Subject: [Idr] "Final" revision : draft-ietf-idr-ls-distribution-13.txt

Hi,

This revision has just a couple of very minor nits from IESG review.

Adrian

> -----Original Message-----
> From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of=20
> internet-drafts@ietf.org
> Sent: 16 October 2015 17:52
> To: i-d-announce@ietf.org
> Cc: idr@ietf.org
> Subject: [Idr] I-D Action: draft-ietf-idr-ls-distribution-13.txt
>=20
>=20
> A New Internet-Draft is available from the on-line Internet-Drafts
directories.
>  This draft is a work item of the Inter-Domain Routing Working Group=20
> of the
IETF.
>=20
>         Title           : North-Bound Distribution of Link-State and TE
Information using
> BGP
>         Authors         : Hannes Gredler
>                           Jan Medved
>                           Stefano Previdi
>                           Adrian Farrel
>                           Saikat Ray
> 	Filename        : draft-ietf-idr-ls-distribution-13.txt
> 	Pages           : 47
> 	Date            : 2015-10-16
>=20
> Abstract:
>    In a number of environments, a component external to a network is
>    called upon to perform computations based on the network topology and
>    current state of the connections within the network, including
>    traffic engineering information.  This is information typically
>    distributed by IGP routing protocols within the network.
>=20
>    This document describes a mechanism by which links state and traffic
>    engineering information can be collected from networks and shared
>    with external components using the BGP routing protocol.  This is
>    achieved using a new BGP Network Layer Reachability Information
>    (NLRI) encoding format.  The mechanism is applicable to physical and
>    virtual IGP links.  The mechanism described is subject to policy
>    control.
>=20
>    Applications of this technique include Application Layer Traffic
>    Optimization (ALTO) servers, and Path Computation Elements (PCEs).
>=20
>=20
>=20
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-idr-ls-distribution/
>=20
> There's also a htmlized version available at:
> https://tools.ietf.org/html/draft-ietf-idr-ls-distribution-13
>=20
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-idr-ls-distribution-13
>=20
>=20
> Please note that it may take a couple of minutes from the time of=20
> submission until the htmlized version and diff are available at tools.iet=
f.org.
>=20
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>=20
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr

_______________________________________________
Idr mailing list
Idr@ietf.org
https://www.ietf.org/mailman/listinfo/idr


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Subject: [Idr] I-D Action: draft-ietf-idr-legacy-rtc-06.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Inter-Domain Routing Working Group of the IETF.

        Title           : Automatic Route Target Filtering for legacy PEs 
        Authors         : Pradosh Mohapatra
                          Arjun Sreekantiah
                          Keyur Patel
                          Burjiz Pithawala
                          Alton Lo
	Filename        : draft-ietf-idr-legacy-rtc-06.txt
	Pages           : 9
	Date            : 2015-10-16

Abstract:
   This document describes a simple procedure that allows "legacy" BGP
   speakers to exchange route target membership information in BGP
   without using mechanisms specified in [RFC4684].  The intention of
   the proposed technique is to help in partial deployment scenarios and
   is not meant to replace [RFC4684].


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-idr-legacy-rtc/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-idr-legacy-rtc-06

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-legacy-rtc-06


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


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From: Youjianjie <youjianjie@huawei.com>
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Thread-Topic: New Version Notification for draft-liang-idr-bgp-flowspec-time-00.txt
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From nobody Sun Oct 18 22:58:46 2015
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From: "Thomas Mangin" <thomas.mangin@exa-networks.co.uk>
To: "idr@ietf.org" <idr@ietf.org>
Date: Mon, 19 Oct 2015 06:58:36 +0100
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Subject: Re: [Idr] New Version Notification for draft-liang-idr-bgp-flowspec-time-00.txt
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Hello Jianjie,

Could you please explain why you choose a TLV vs individual new flow 
components. Naively, I would have thought that it would be easier to 
create a number of new individual tests (start time, duration, delay, 
..).

While I am sympathetic to the idea, many of ExaBGP’s users have asked 
me to introduce a similar feature in the code, I would rather not see 
yet another TLV requiring yes another custom parser to be handled when 
RFC 5575 has a perfectly good generic mechanism to handle tests on flow 
routes.

Yours sincerely,

Thomas Mangin

http://exa.net.uk/about/contact-us
On 19 Oct 2015, at 3:08, Youjianjie wrote:

> Dear all,
>
> This document proposes a new BGP path attribute called "Flow Extended 
> Attribute", which carries expected valid period information for a 
> FlowSpec rule.
> Could you please review? Your comments are welcome.
>
> Thanks,
> Jianjie
>
> -----邮件原件-----
> 发件人: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org]
> 发送时间: 2015年10月19日 9:58
> 收件人: Liangqiandeng; Zhuangshunwan; Youjianjie; Zhuangshunwan; 
> Youjianjie; Liangqiandeng
> 主题: New Version Notification for 
> draft-liang-idr-bgp-flowspec-time-00.txt
>
>
> A new version of I-D, draft-liang-idr-bgp-flowspec-time-00.txt
> has been successfully submitted by Jianjie You and posted to the IETF 
> repository.
>
> Name:		draft-liang-idr-bgp-flowspec-time
> Revision:	00
> Title:		BGP FlowSpec with Time Constraints
> Document date:	2015-10-18
> Group:		Individual Submission
> Pages:		9
> URL:            
> https://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowspec-time-00.txt
> Status:         
> https://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/
> Htmlized:       
> https://tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00
>
>
> Abstract:
> The BGP flow specification (FlowSpec) is an additional tool to
> mitigate the effects of Distributed Denial of Service (DDoS) attacks.
> Since DDoS attacks are dynamic, filtering of a flow may only be
> necessary for some specified time, and be undesirable at other times.
> This document proposes a new BGP path attribute called "Flow Extended
> Attribute", which carries expected valid period information for a
> FlowSpec rule.  So network administrators can control certain types
> of traffic in a specified period.
>
>
>
>
>
> Please note that it may take a couple of minutes from the time of 
> submission until the htmlized version and diff are available at 
> tools.ietf.org.
>
> The IETF Secretariat
>
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr


From nobody Mon Oct 19 00:31:36 2015
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To: Youjianjie <youjianjie@huawei.com>
From: Gunter Van De Velde <guntervandeveldecc@icloud.com>
Date: Mon, 19 Oct 2015 07:31:33 +0000 (GMT)
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Subject: Re: [Idr] =?utf-8?q?New_Version_Notification_for_draft-liang-idr-bgp-?= =?utf-8?q?flowspec-time-00=2Etxt?=
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--Boundary_(ID_yKU4AudtrTPrrzoNBbAc8g)
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Hi Youjianjie,=0A=0AI would expect a flow spec rule to be valid for consum=
ption from the moment its originated from a flow spec controller until it =
is withdrawn by the controller.=C2=A0In the text proposed you relate to di=
fferent forwarding delays for a router to receive the flow spec rule and h=
ence justifies a need for new community to specify 'valid-time' for the fl=
ow spec route. This seems as a pretty light reason for such a complex prop=
osed logical machine.=0A=0ABe well,=0AG/=0ASent from iCloud=0A=0AOn Oct 19=
, 2015, at 04:08 AM, Youjianjie <youjianjie@huawei.com> wrote:=0A=0ADear a=
ll,=0A=0AThis document proposes a new BGP path attribute called "Flow Exte=
nded Attribute", which carries expected valid period information for a Flo=
wSpec rule.=0ACould you please review? Your comments are welcome.=0A=0ATha=
nks,=0AJianjie=0A=0A-----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6-----=0A=E5=8F=
=91=E4=BB=B6=E4=BA=BA: internet-drafts@ietf.org [mailto:internet-drafts@ie=
tf.org] =0A=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=881=
9=E6=97=A5 9:58=0A=E6=94=B6=E4=BB=B6=E4=BA=BA: Liangqiandeng; Zhuangshunwa=
n; Youjianjie; Zhuangshunwan; Youjianjie; Liangqiandeng=0A=E4=B8=BB=E9=A2=98=
: New Version Notification for draft-liang-idr-bgp-flowspec-time-00.txt=0A=
=0A=0AA new version of I-D, draft-liang-idr-bgp-flowspec-time-00.txt=0Ahas=
 been successfully submitted by Jianjie You and posted to the IETF reposit=
ory.=0A=0AName: =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0dra=
ft-liang-idr-bgp-flowspec-time=0ARevision: =C2=A0 =C2=A000=0ATitle: =C2=A0=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0BGP FlowSpec with Time Co=
nstraints=0ADocument date: =C2=A0 =C2=A0 =C2=A0 =C2=A02015-10-18=0AGroup: =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Individual Submissi=
on=0APages: =C2=A0 =C2=A0 =C2=A09=0AURL: https://www.ietf.org/internet-dra=
fts/draft-liang-idr-bgp-flowspec-time-00.txt=0AStatus: https://datatracker=
.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/=0AHtmlized: https://tools=
.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00=0A=0A=0AAbstract:=0ATh=
e BGP flow specification (FlowSpec) is an additional tool to=0Amitigate th=
e effects of Distributed Denial of Service (DDoS) attacks.=0ASince DDoS at=
tacks are dynamic, filtering of a flow may only be=0Anecessary for some sp=
ecified time, and be undesirable at other times.=0AThis document proposes =
a new BGP path attribute called "Flow Extended=0AAttribute", which carries=
 expected valid period information for a=0AFlowSpec rule. So network admin=
istrators can control certain types=0Aof traffic in a specified period.=0A=
=0A=0A=0A=0A=0APlease note that it may take a couple of minutes from the t=
ime of submission until the htmlized version and diff are available at too=
ls.ietf.org.=0A=0AThe IETF Secretariat=0A=0A______________________________=
_________________=0AIdr mailing list=0AIdr@ietf.org=0Ahttps://www.ietf.org=
/mailman/listinfo/idr=0A=

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<html><body><div>Hi Youjianjie,</div><div><br data-mce-bogus=3D"1"></div><div>I would =
expect a flow spec rule to be valid for consumption from the moment its or=
iginated from a flow spec controller until it is withdrawn by the controll=
er.&nbsp;In the text proposed you relate to different forwarding delays fo=
r a router to receive the flow spec rule and hence justifies a need for ne=
w community to specify 'valid-time' for the flow spec route. This seems as=
 a pretty light reason for such a complex proposed logical machine.</div><=
div><br></div><div>Be well,</div><div>G/</div><div class=3D"x-apple-signat=
ure"><pre style=3D"font-family: 'SFNSText','Helvetica Neue', Helvetica, sa=
ns-serif; font-size: 15px; white-space: pre-wrap; word-wrap: break-word;" =
data-mce-style=3D"font-family: 'SFNSText','Helvetica Neue', Helvetica, san=
s-serif; font-size: 15px; white-space: pre-wrap; word-wrap: break-word;">S=
ent from iCloud</pre></div><div><br>On Oct 19, 2015, at 04:08 AM, Youjianj=
ie &lt;youjianjie@huawei.com&gt; wrote:<br><br></div><div><blockquote type=
=3D"cite"><div class=3D"msg-quote"><div class=3D"_stretch"><span class=3D"=
body-text-content">Dear all,<br><br>This document proposes a new BGP path =
attribute called "Flow Extended Attribute", which carries expected valid p=
eriod information for a FlowSpec rule.<br>Could you please review? Your co=
mments are welcome.<br><br>Thanks,<br>Jianjie<br><br>-----=E9=82=AE=E4=BB=B6=
=E5=8E=9F=E4=BB=B6-----<br>=E5=8F=91=E4=BB=B6=E4=BA=BA: <a href=3D"mailto:=
internet-drafts@ietf.org" data-mce-href=3D"mailto:internet-drafts@ietf.org=
">internet-drafts@ietf.org</a> [mailto:internet-drafts@ietf.org] <br>=E5=8F=
=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8819=E6=97=A5 9:58<b=
r>=E6=94=B6=E4=BB=B6=E4=BA=BA: Liangqiandeng; Zhuangshunwan; Youjianjie; Z=
huangshunwan; Youjianjie; Liangqiandeng<br>=E4=B8=BB=E9=A2=98: New Version=
 Notification for draft-liang-idr-bgp-flowspec-time-00.txt<br><br><br>A ne=
w version of I-D, draft-liang-idr-bgp-flowspec-time-00.txt<br>has been suc=
cessfully submitted by Jianjie You and posted to the IETF repository.<br><=
br>Name: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;draft-lian=
g-idr-bgp-flowspec-time<br>Revision: &nbsp; &nbsp;00<br>Title: &nbsp; &nbs=
p; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;BGP FlowSpec with Time Constra=
ints<br>Document date: &nbsp; &nbsp; &nbsp; &nbsp;2015-10-18<br>Group: &nb=
sp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Individual Submission<=
br>Pages: &nbsp; &nbsp; &nbsp;9<br>URL: <a href=3D"https://www.ietf.org/in=
ternet-drafts/draft-liang-idr-bgp-flowspec-time-00.txt" data-mce-href=3D"h=
ttps://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowspec-time-00.t=
xt">https://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowspec-time=
-00.txt</a><br>Status: <a href=3D"https://datatracker.ietf.org/doc/draft-l=
iang-idr-bgp-flowspec-time/" data-mce-href=3D"https://datatracker.ietf.org=
/doc/draft-liang-idr-bgp-flowspec-time/">https://datatracker.ietf.org/doc/=
draft-liang-idr-bgp-flowspec-time/</a><br>Htmlized: <a href=3D"https://too=
ls.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00" data-mce-href=3D"ht=
tps://tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00">https://to=
ols.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00</a><br><br><br>Abst=
ract:<br> The BGP flow specification (FlowSpec) is an additional tool to<b=
r> mitigate the effects of Distributed Denial of Service (DDoS) attacks.<b=
r> Since DDoS attacks are dynamic, filtering of a flow may only be<br> nec=
essary for some specified time, and be undesirable at other times.<br> Thi=
s document proposes a new BGP path attribute called "Flow Extended<br> Att=
ribute", which carries expected valid period information for a<br> FlowSpe=
c rule. So network administrators can control certain types<br> of traffic=
 in a specified period.<br><br><br> <br><br><br>Please note that it may ta=
ke a couple of minutes from the time of submission until the htmlized vers=
ion and diff are available at tools.ietf.org.<br><br>The IETF Secretariat<=
br><br>_______________________________________________<br>Idr mailing list=
<br><a href=3D"mailto:Idr@ietf.org" data-mce-href=3D"mailto:Idr@ietf.org">=
Idr@ietf.org</a><br><a href=3D"https://www.ietf.org/mailman/listinfo/idr" =
data-mce-href=3D"https://www.ietf.org/mailman/listinfo/idr">https://www.ie=
tf.org/mailman/listinfo/idr</a><br></span></div></div></blockquote></div></body></html>=

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Hi Gunter,

You are right if we would limit flowspec to only DDoS mitigation tool.

Apparently number of other use cases popped up since flowspec was first
defined.

So while as Thomas already mentioned we could/should discuss choice of
encoding I am quite sympathetic to the idea proposed by Jianjie.

Along the same lines today in general we have dropped number of proposals
which if not rolled out in the same time would create loops. Perhaps there
is light in the end of the tunnel to be also able to activate specific
control plane or forwarding behavior at specific time set or for specific
time set.

Best,
r.


On Mon, Oct 19, 2015 at 9:31 AM, Gunter Van De Velde <
guntervandeveldecc@icloud.com> wrote:

> Hi Youjianjie,
>
> I would expect a flow spec rule to be valid for consumption from the
> moment its originated from a flow spec controller until it is withdrawn b=
y
> the controller. In the text proposed you relate to different forwarding
> delays for a router to receive the flow spec rule and hence justifies a
> need for new community to specify 'valid-time' for the flow spec route.
> This seems as a pretty light reason for such a complex proposed logical
> machine.
>
> Be well,
> G/
>
> Sent from iCloud
>
>
> On Oct 19, 2015, at 04:08 AM, Youjianjie <youjianjie@huawei.com> wrote:
>
> Dear all,
>
> This document proposes a new BGP path attribute called "Flow Extended
> Attribute", which carries expected valid period information for a FlowSpe=
c
> rule.
> Could you please review? Your comments are welcome.
>
> Thanks,
> Jianjie
>
> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6-----
> =E5=8F=91=E4=BB=B6=E4=BA=BA: internet-drafts@ietf.org [mailto:internet-dr=
afts@ietf.org]
> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8819=E6=97=A5=
 9:58
> =E6=94=B6=E4=BB=B6=E4=BA=BA: Liangqiandeng; Zhuangshunwan; Youjianjie; Zh=
uangshunwan; Youjianjie;
> Liangqiandeng
> =E4=B8=BB=E9=A2=98: New Version Notification for draft-liang-idr-bgp-flow=
spec-time-00.txt
>
>
> A new version of I-D, draft-liang-idr-bgp-flowspec-time-00.txt
> has been successfully submitted by Jianjie You and posted to the IETF
> repository.
>
> Name:                draft-liang-idr-bgp-flowspec-time
> Revision:    00
> Title:                BGP FlowSpec with Time Constraints
> Document date:        2015-10-18
> Group:                Individual Submission
> Pages:      9
> URL:
> https://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowspec-time-00=
.txt
> Status:
> https://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/
> Htmlized: https://tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-0=
0
>
>
> Abstract:
> The BGP flow specification (FlowSpec) is an additional tool to
> mitigate the effects of Distributed Denial of Service (DDoS) attacks.
> Since DDoS attacks are dynamic, filtering of a flow may only be
> necessary for some specified time, and be undesirable at other times.
> This document proposes a new BGP path attribute called "Flow Extended
> Attribute", which carries expected valid period information for a
> FlowSpec rule. So network administrators can control certain types
> of traffic in a specified period.
>
>
>
>
>
> Please note that it may take a couple of minutes from the time of
> submission until the htmlized version and diff are available at
> tools.ietf.org.
>
> The IETF Secretariat
>
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr
>
>
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr
>
>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small">Hi Gunter,</div><div class=3D"gmail_def=
ault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br>=
</div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,san=
s-serif;font-size:small">You are right if we would limit flowspec to only D=
DoS mitigation tool.=C2=A0</div><div class=3D"gmail_default" style=3D"font-=
family:arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"=
gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:sm=
all">Apparently number of other use cases popped up since flowspec was firs=
t defined.</div><div class=3D"gmail_default" style=3D"font-family:arial,hel=
vetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_default" s=
tyle=3D"font-family:arial,helvetica,sans-serif;font-size:small">So while as=
 Thomas already mentioned we could/should discuss choice of encoding I am q=
uite sympathetic to the idea proposed by=C2=A0<span style=3D"font-size:12.8=
px;font-family:arial,sans-serif">Jianjie.</span></div><div class=3D"gmail_d=
efault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><b=
r></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,s=
ans-serif;font-size:small">Along the same lines today in general we have dr=
opped number of proposals which if not rolled out in the same time would cr=
eate loops. Perhaps there is light in the end of the tunnel to be also able=
 to activate specific control plane or forwarding behavior at specific time=
 set or for specific time set.=C2=A0</div><div class=3D"gmail_default" styl=
e=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div=
 class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;fo=
nt-size:small">Best,</div><div class=3D"gmail_default" style=3D"font-family=
:arial,helvetica,sans-serif;font-size:small">r.</div><div class=3D"gmail_de=
fault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br=
></div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On M=
on, Oct 19, 2015 at 9:31 AM, Gunter Van De Velde <span dir=3D"ltr">&lt;<a h=
ref=3D"mailto:guntervandeveldecc@icloud.com" target=3D"_blank">guntervandev=
eldecc@icloud.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote=
" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><=
div><div>Hi Youjianjie,</div><div><br></div><div>I would expect a flow spec=
 rule to be valid for consumption from the moment its originated from a flo=
w spec controller until it is withdrawn by the controller.=C2=A0In the text=
 proposed you relate to different forwarding delays for a router to receive=
 the flow spec rule and hence justifies a need for new community to specify=
 &#39;valid-time&#39; for the flow spec route. This seems as a pretty light=
 reason for such a complex proposed logical machine.</div><div><br></div><d=
iv>Be well,</div><div>G/</div><div><pre style=3D"font-family:&#39;SFNSText&=
#39;,&#39;Helvetica Neue&#39;,Helvetica,sans-serif;font-size:15px;white-spa=
ce:pre-wrap;word-wrap:break-word">Sent from iCloud</pre></div><div><div cla=
ss=3D"h5"><div><br>On Oct 19, 2015, at 04:08 AM, Youjianjie &lt;<a href=3D"=
mailto:youjianjie@huawei.com" target=3D"_blank">youjianjie@huawei.com</a>&g=
t; wrote:<br><br></div><div><blockquote type=3D"cite"><div><div><span>Dear =
all,<br><br>This document proposes a new BGP path attribute called &quot;Fl=
ow Extended Attribute&quot;, which carries expected valid period informatio=
n for a FlowSpec rule.<br>Could you please review? Your comments are welcom=
e.<br><br>Thanks,<br>Jianjie<br><br>-----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=
=B6-----<br>=E5=8F=91=E4=BB=B6=E4=BA=BA: <a href=3D"mailto:internet-drafts@=
ietf.org" target=3D"_blank">internet-drafts@ietf.org</a> [mailto:<a href=3D=
"mailto:internet-drafts@ietf.org" target=3D"_blank">internet-drafts@ietf.or=
g</a>] <br>=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8819=
=E6=97=A5 9:58<br>=E6=94=B6=E4=BB=B6=E4=BA=BA: Liangqiandeng; Zhuangshunwan=
; Youjianjie; Zhuangshunwan; Youjianjie; Liangqiandeng<br>=E4=B8=BB=E9=A2=
=98: New Version Notification for draft-liang-idr-bgp-flowspec-time-00.txt<=
br><br><br>A new version of I-D, draft-liang-idr-bgp-flowspec-time-00.txt<b=
r>has been successfully submitted by Jianjie You and posted to the IETF rep=
ository.<br><br>Name: =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0draft-liang-idr-bgp-flowspec-time<br>Revision: =C2=A0 =C2=A000<br>Title:=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0BGP FlowSpec with T=
ime Constraints<br>Document date: =C2=A0 =C2=A0 =C2=A0 =C2=A02015-10-18<br>=
Group: =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Individual Su=
bmission<br>Pages: =C2=A0 =C2=A0 =C2=A09<br>URL: <a href=3D"https://www.iet=
f.org/internet-drafts/draft-liang-idr-bgp-flowspec-time-00.txt" target=3D"_=
blank">https://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowspec-ti=
me-00.txt</a><br>Status: <a href=3D"https://datatracker.ietf.org/doc/draft-=
liang-idr-bgp-flowspec-time/" target=3D"_blank">https://datatracker.ietf.or=
g/doc/draft-liang-idr-bgp-flowspec-time/</a><br>Htmlized: <a href=3D"https:=
//tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00" target=3D"_blan=
k">https://tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00</a><br>=
<br><br>Abstract:<br> The BGP flow specification (FlowSpec) is an additiona=
l tool to<br> mitigate the effects of Distributed Denial of Service (DDoS) =
attacks.<br> Since DDoS attacks are dynamic, filtering of a flow may only b=
e<br> necessary for some specified time, and be undesirable at other times.=
<br> This document proposes a new BGP path attribute called &quot;Flow Exte=
nded<br> Attribute&quot;, which carries expected valid period information f=
or a<br> FlowSpec rule. So network administrators can control certain types=
<br> of traffic in a specified period.<br><br><br> <br><br><br>Please note =
that it may take a couple of minutes from the time of submission until the =
htmlized version and diff are available at <a href=3D"http://tools.ietf.org=
" target=3D"_blank">tools.ietf.org</a>.<br><br>The IETF Secretariat<br><br>=
_______________________________________________<br>Idr mailing list<br><a h=
ref=3D"mailto:Idr@ietf.org" target=3D"_blank">Idr@ietf.org</a><br><a href=
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w.ietf.org/mailman/listinfo/idr</a><br></span></div></div></blockquote></di=
v></div></div></div><br>_______________________________________________<br>
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From nobody Mon Oct 19 08:39:22 2015
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Subject: [Idr] I-D Action: draft-ietf-idr-ix-bgp-route-server-09.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Inter-Domain Routing Working Group of the IETF.

        Title           : Internet Exchange BGP Route Server
        Authors         : Elisa Jasinska
                          Nick Hilliard
                          Robert Raszuk
                          Niels Bakker
	Filename        : draft-ietf-idr-ix-bgp-route-server-09.txt
	Pages           : 10
	Date            : 2015-10-19

Abstract:
   This document outlines a specification for multilateral
   interconnections at Internet exchange points (IXPs).  Multilateral
   interconnection is a method of exchanging routing information between
   three or more exterior BGP speakers using a single intermediate
   broker system, referred to as a route server.  Route servers are
   typically used on shared access media networks, such as Internet
   exchange points (IXPs), to facilitate simplified interconnection
   between multiple Internet routers.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-idr-ix-bgp-route-server/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-idr-ix-bgp-route-server-09

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-ix-bgp-route-server-09


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


From nobody Mon Oct 19 08:54:44 2015
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Subject: Re: [Idr] RtgDir review: draft-ietf-idr-ix-bgp-route-server-08.txt
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Geoff, ADs,

thanks for your review.

>From a technical correctness point of view, the text in section 2.3 is
indeed "speculative".  It's not possible within the scope of this document
to change rfc6774 to be standards track or to get the add-paths draft to
rfc stage.  You're also correct that there is no formal description about
how to handle multiple loc-ribs, even though there are several of
production implementations which do this.

Having said that, the authors would feel uncomfortable about writing a
document about how to approach an RS implementation without flagging path
hiding and its potential workarounds.  Production IXPs tend to view this as
being an important part of RS implementations.

We've taken your comments on board and have explicitly noted that section
2.3 and all its subsections are informational only.  The rfc2119 language
in this section has also been toned down to remove any implication that the
section could be interpreted as normative.

Separate to this, the wording has been changed for the minor issue.

Draft -09 has now been published; hopefully this will address the concerns
you raised.

Nick

On 08/09/2015 00:59, Geoff Huston wrote:
> Hello,
> 
> I have been selected as the Routing Directorate reviewer for this draft. The Routing Directorate seeks to review all routing or routing-related drafts as they pass through IETF last call and IESG review, and sometimes on special request. The purpose of the review is to provide assistance to the Routing ADs. For more information about the Routing Directorate, please see ​http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir
> 
> Although these comments are primarily for the use of the Routing ADs, it would be helpful if you could consider them along with any other IETF Last Call comments that you receive, and strive to resolve them through discussion or by updating the draft.
> 
> Document: draft-ietf-idr-ix-bgp-route-server-08.txt
> Reviewer: Geoff Huston
> Review Date: 8 September 2015
> IETF LC End Date: 
> Intended Status: Standards Track
> 
> 
> Summary: 
> 
>   I have significant concerns about this document and recommend that the 
>   Routing ADs discuss these issues further with the authors.
> 
> Comments:
> 
>   The document is clear, and easily read. 
>   
>   Sections 2.1 and 2.2 are consistent with a Standards Track specification
>   document
>   
>   Section 2.3 appears to be more speculative in nature and the text is
>   consistent with an informational document, but not necessarily consistent
>   with a Standards Track specification.
>   
> Major Issues:
> 
>   2.3.  Per-Client Policy Control in Multilateral Interconnection
> 
>   I am having a lot of difficulty understanding the role of this section in
>   a standards track document. The section describes a problem of a route
>   server exercising unilateral route policy selection, and thereby
>   occluding potential routes from the route server's clients.
>   
>   The document then describes three potential approaches for addressing
>   this issue:
>   
>   2.3.2.1 Multiple Route Server RIBS
>   
>   Is there a reference for this approach? If not, then is this text intended
>   to be the reference specification for multi-RIBs? 
>   
>   I'm not entirely comfortable with this section as part of a Standards
>   Track specification given the lack of a clear specification of this
>   routing behaviour. The informal two paragraph description of the intended
>   behaviour seems to me to be inconsistent with a standards track
>   specification.
>   
>   2.3.2.2.1.  Diverse BGP Path Approach
>   
>   This references RFC6774, an Informational document.
>   
>   Given that the document subsequently states that "A route server SHOULD
>   implement one of the methods described in Section 2.3.2 to allow
>   per-client routing policy control without "path hiding"." then I am very
>   surprised to see RFC6774 listed as Informative rather than Normative. It
>   should be Normative. But then as its Informational, this becomes a
>   downref in this document which the authors need to address.
>   
>   2.3.2.2.2.  BGP ADD-PATH Approach
>   
>   This references [I-D.ietf-idr-add-paths].
>   
>   Same comment as above.
> 
>   
>   The Standards track document is saying that a Route Server SHOULD implement
>   one of three approaches where one is unreferenced, one is informataional and
>   one is still a draft.
>   
>   I think this is a major impediment to the document's progress as a Standards
>   Track document.
> 
> 
> Minor Issues:
> 
>   1. Introduction, Second Paragraph:
> 
>   The unilateral assertion about scaling is perhaps over-doing it. The text
>   should add a qualifier such as "in large exchanges" or "in some
>   circumstances" so that the sentence is not interpreted as a universal
>   condition, but one that arises as the number of peer sessions increases
>   at an exchange
>   
> 
> 
> 
> 
>   
>   
>   
> 
> 
> 


-- 
Network Ability Ltd. | Chief Technical Officer | Tel: +353 1 5313339
52 Lower Sandwith St | INEX - Internet Neutral |
Dublin 2, Ireland    | Exchange Association    | Email: nick@inex.ie


From nobody Mon Oct 19 11:48:12 2015
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Subject: [Idr] RFC 4721 FSM - Clarification needed for optional attribute "PassiveTcpEstablishment"
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Hello BGP-experts,

While re-reading the main BGP4 RFC (4271) and re-viewing my 
implementation (which I did some time ago) of the FSM described therein
I came across a question concerning the optional FSM-attribute 
"PassiveTcpEstablishment".

What is it really for?

My original interpretation of its meaning was, that it allows to 
configure the local BGP4-speaker to just listen for incoming connections 
from a BGP4-peer, instead of ever trying to actively initiate one.

I thought of this being a sensible interpretation as I could imagine 
some use-cases where it would be handy to just wait for incoming 
connections instead of trying to initiate one.

This would also comply with what was stated in its description. [1]

However, the description of the FSM-states made me rethink.

In state IDLE, if started with "PassiveTcpEstablishment enabled, via 
event 4 ("ManualStart_with_PassiveTcpEstablishment") or event 5 
("AutomaticStart_with_PassiveTcpEstablishment"), the FSM among other 
things starts the "ConnectRetryTimer" and transitions into state ACTIVE. [2]
Then, in state ACTIVE, the "ConnectRetryTimer" could run out and 
FSM-event 9 ("ConnectRetryTimer_Expires") would get triggered, which as 
a result _actively_ initiates a TCP-connection to the other BGP-peer and 
transitions into state CONNECT. [3]

So, if the FSM just has to wait long enough, it actively tries to 
initiate a TCP-connection whether "PassiveTcpEstablishment" was enabled 
or not.

So it seems, my original interpretation of the meaning of the optional 
FSM-attribute "PassiveTcpEstablishment" (as well as its description [1]) 
are not fully accurate.
Or the described handling of "ConnectRetryTimer_Expires" events in state 
ACTIVE [3] is missing some special behavior in case the 
"PassiveTcpEstablishment" is enabled.

Note: I wrote "special behavior" instead of "different behavior" because 
there might be some other ways to reach state ACTIVE and receive a 
"ConnectRetryTimer_Expires" event, even if started without 
"PassiveTcpEstablishment". E.g. by receiving event 18 
("TcpConnectionFails") in state CONNECT while the "DelayOpenTimer" was 
running, in which case the FSM would transition into state ACTIVE and 
could then receive the "ConnectRetryTimer_Expires" event. In that 
situation it would make sense to initiate a new TCP-connection to the 
peer and transition back to state CONNECT.

I hope, someone of you could clarify this situation and the meaning of 
"PassiveTcpEstablishment".

Thanks in advance,
Deniz Bahadir


References:

[1] Quote from pages 39 and 40, RFC 4271:

       Group 3: TCP processing

          Optional Session Attributes: PassiveTcpEstablishment,
                                       TrackTcpState

          Option 1:    PassiveTcpEstablishment

          Description: This option indicates that the BGP FSM will
                       passively wait for the remote BGP peer to
                       establish the BGP TCP connection.

          value:       TRUE or FALSE

          Option 2:    TrackTcpState
          [...]

[2] Quote from page 53, RFC 4271:

       In response to a ManualStart_with_PassiveTcpEstablishment event
       (Event 4) or AutomaticStart_with_PassiveTcpEstablishment event
       (Event 5), the local system:

         - initializes all BGP resources,

         - sets the ConnectRetryCounter to zero,

         - starts the ConnectRetryTimer with the initial value,

         - listens for a connection that may be initiated by the remote
           peer, and

         - changes its state to Active.

[3] Quote from page 59, RFC 4271:

       In response to a ConnectRetryTimer_Expires event (Event 9), the
       local system:

         - restarts the ConnectRetryTimer (with initial value),

         - initiates a TCP connection to the other BGP peer,

         - continues to listen for a TCP connection that may be initiated
           by a remote BGP peer, and

         - changes its state to Connect.

       The exact value of the ConnectRetryTimer is a local matter, but it
       SHOULD be sufficiently large to allow TCP initialization.


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Cc: "'Keyur Patel \(keyupate\)'" <keyupate@cisco.com>, "idr@ietf.org" <idr@ietf.org>
Subject: Re: [Idr] New draft - Flowspec Path Redirect
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From: Geoff Huston <gih@apnic.net>
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Cc: rtg-dir@ietf.org, Nick Hilliard <nick@inex.ie>, draft-ietf-idr-ix-bgp-route-server@tools.ietf.org, "idr@ietf.org wg" <idr@ietf.org>
Subject: Re: [Idr] RtgDir review: draft-ietf-idr-ix-bgp-route-server
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I can conform that draft -09 addresses the concerns I raised in my =
review, and I have no
further concerns with this document - as far as I am concerned it=E2=80=99=
s good to go!

thanks,

   Geoff

> On 20 Oct 2015, at 2:54 AM, Nick Hilliard <nick@inex.ie> wrote:
>=20
> Geoff, ADs,
>=20
> thanks for your review.
>=20
> =46rom a technical correctness point of view, the text in section 2.3 =
is
> indeed "speculative".  It's not possible within the scope of this =
document
> to change rfc6774 to be standards track or to get the add-paths draft =
to
> rfc stage.  You're also correct that there is no formal description =
about
> how to handle multiple loc-ribs, even though there are several of
> production implementations which do this.
>=20
> Having said that, the authors would feel uncomfortable about writing a
> document about how to approach an RS implementation without flagging =
path
> hiding and its potential workarounds.  Production IXPs tend to view =
this as
> being an important part of RS implementations.
>=20
> We've taken your comments on board and have explicitly noted that =
section
> 2.3 and all its subsections are informational only.  The rfc2119 =
language
> in this section has also been toned down to remove any implication =
that the
> section could be interpreted as normative.
>=20
> Separate to this, the wording has been changed for the minor issue.
>=20
> Draft -09 has now been published; hopefully this will address the =
concerns
> you raised.
>=20
> Nick
>=20
> On 08/09/2015 00:59, Geoff Huston wrote:
>> Hello,
>>=20
>> I have been selected as the Routing Directorate reviewer for this =
draft. The Routing Directorate seeks to review all routing or =
routing-related drafts as they pass through IETF last call and IESG =
review, and sometimes on special request. The purpose of the review is =
to provide assistance to the Routing ADs. For more information about the =
Routing Directorate, please see =
=E2=80=8Bhttp://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir
>>=20
>> Although these comments are primarily for the use of the Routing ADs, =
it would be helpful if you could consider them along with any other IETF =
Last Call comments that you receive, and strive to resolve them through =
discussion or by updating the draft.
>>=20
>> Document: draft-ietf-idr-ix-bgp-route-server-08.txt
>> Reviewer: Geoff Huston
>> Review Date: 8 September 2015
>> IETF LC End Date:=20
>> Intended Status: Standards Track
>>=20
>>=20
>> Summary:=20
>>=20
>>  I have significant concerns about this document and recommend that =
the=20
>>  Routing ADs discuss these issues further with the authors.
>>=20
>> Comments:
>>=20
>>  The document is clear, and easily read.=20
>>=20
>>  Sections 2.1 and 2.2 are consistent with a Standards Track =
specification
>>  document
>>=20
>>  Section 2.3 appears to be more speculative in nature and the text is
>>  consistent with an informational document, but not necessarily =
consistent
>>  with a Standards Track specification.
>>=20
>> Major Issues:
>>=20
>>  2.3.  Per-Client Policy Control in Multilateral Interconnection
>>=20
>>  I am having a lot of difficulty understanding the role of this =
section in
>>  a standards track document. The section describes a problem of a =
route
>>  server exercising unilateral route policy selection, and thereby
>>  occluding potential routes from the route server's clients.
>>=20
>>  The document then describes three potential approaches for =
addressing
>>  this issue:
>>=20
>>  2.3.2.1 Multiple Route Server RIBS
>>=20
>>  Is there a reference for this approach? If not, then is this text =
intended
>>  to be the reference specification for multi-RIBs?=20
>>=20
>>  I'm not entirely comfortable with this section as part of a =
Standards
>>  Track specification given the lack of a clear specification of this
>>  routing behaviour. The informal two paragraph description of the =
intended
>>  behaviour seems to me to be inconsistent with a standards track
>>  specification.
>>=20
>>  2.3.2.2.1.  Diverse BGP Path Approach
>>=20
>>  This references RFC6774, an Informational document.
>>=20
>>  Given that the document subsequently states that "A route server =
SHOULD
>>  implement one of the methods described in Section 2.3.2 to allow
>>  per-client routing policy control without "path hiding"." then I am =
very
>>  surprised to see RFC6774 listed as Informative rather than =
Normative. It
>>  should be Normative. But then as its Informational, this becomes a
>>  downref in this document which the authors need to address.
>>=20
>>  2.3.2.2.2.  BGP ADD-PATH Approach
>>=20
>>  This references [I-D.ietf-idr-add-paths].
>>=20
>>  Same comment as above.
>>=20
>>=20
>>  The Standards track document is saying that a Route Server SHOULD =
implement
>>  one of three approaches where one is unreferenced, one is =
informataional and
>>  one is still a draft.
>>=20
>>  I think this is a major impediment to the document's progress as a =
Standards
>>  Track document.
>>=20
>>=20
>> Minor Issues:
>>=20
>>  1. Introduction, Second Paragraph:
>>=20
>>  The unilateral assertion about scaling is perhaps over-doing it. The =
text
>>  should add a qualifier such as "in large exchanges" or "in some
>>  circumstances" so that the sentence is not interpreted as a =
universal
>>  condition, but one that arises as the number of peer sessions =
increases
>>  at an exchange
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>=20
>=20
> --=20
> Network Ability Ltd. | Chief Technical Officer | Tel: +353 1 5313339
> 52 Lower Sandwith St | INEX - Internet Neutral |
> Dublin 2, Ireland    | Exchange Association    | Email: nick@inex.ie


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Subject: Re: [Idr] New Version Notification for draft-liang-idr-bgp-flowspec-time-00.txt
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If the purpose is to communicate timing properties attached a NLRI, then =
why limit it to =E2=80=98just=E2=80=99 flow spec AF? it could =
potentially be used for any type NLRI.

To understand the potential, could you share the list of those proposals =
that were not rolled out due to a micro-second BGP signalled timing =
requirements?

I am trying to understand if for those BGP signalling would make sense =
or if there would be better options.

G/



> On 19 Oct 2015, at 10:43, Robert Raszuk <robert@raszuk.net> wrote:
>=20
> Hi Gunter,
>=20
> You are right if we would limit flowspec to only DDoS mitigation tool.=20=

>=20
> Apparently number of other use cases popped up since flowspec was =
first defined.
>=20
> So while as Thomas already mentioned we could/should discuss choice of =
encoding I am quite sympathetic to the idea proposed by Jianjie.
>=20
> Along the same lines today in general we have dropped number of =
proposals which if not rolled out in the same time would create loops. =
Perhaps there is light in the end of the tunnel to be also able to =
activate specific control plane or forwarding behavior at specific time =
set or for specific time set.=20
>=20
> Best,
> r.
>=20
>=20
> On Mon, Oct 19, 2015 at 9:31 AM, Gunter Van De Velde =
<guntervandeveldecc@icloud.com <mailto:guntervandeveldecc@icloud.com>> =
wrote:
> Hi Youjianjie,
>=20
> I would expect a flow spec rule to be valid for consumption from the =
moment its originated from a flow spec controller until it is withdrawn =
by the controller. In the text proposed you relate to different =
forwarding delays for a router to receive the flow spec rule and hence =
justifies a need for new community to specify 'valid-time' for the flow =
spec route. This seems as a pretty light reason for such a complex =
proposed logical machine.
>=20
> Be well,
> G/
> Sent from iCloud
>=20
> On Oct 19, 2015, at 04:08 AM, Youjianjie <youjianjie@huawei.com =
<mailto:youjianjie@huawei.com>> wrote:
>=20
>> Dear all,
>>=20
>> This document proposes a new BGP path attribute called "Flow Extended =
Attribute", which carries expected valid period information for a =
FlowSpec rule.
>> Could you please review? Your comments are welcome.
>>=20
>> Thanks,
>> Jianjie
>>=20
>> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6-----
>> =E5=8F=91=E4=BB=B6=E4=BA=BA: internet-drafts@ietf.org =
<mailto:internet-drafts@ietf.org> [mailto:internet-drafts@ietf.org =
<mailto:internet-drafts@ietf.org>]=20
>> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8819=E6=97=A5=
 9:58
>> =E6=94=B6=E4=BB=B6=E4=BA=BA: Liangqiandeng; Zhuangshunwan; =
Youjianjie; Zhuangshunwan; Youjianjie; Liangqiandeng
>> =E4=B8=BB=E9=A2=98: New Version Notification for =
draft-liang-idr-bgp-flowspec-time-00.txt
>>=20
>>=20
>> A new version of I-D, draft-liang-idr-bgp-flowspec-time-00.txt
>> has been successfully submitted by Jianjie You and posted to the IETF =
repository.
>>=20
>> Name:                draft-liang-idr-bgp-flowspec-time
>> Revision:    00
>> Title:                BGP FlowSpec with Time Constraints
>> Document date:        2015-10-18
>> Group:                Individual Submission
>> Pages:      9
>> URL: =
https://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowspec-time-00.=
txt =
<https://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowspec-time-00=
.txt>
>> Status: =
https://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/ =
<https://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/>
>> Htmlized: =
https://tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00 =
<https://tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00>
>>=20
>>=20
>> Abstract:
>> The BGP flow specification (FlowSpec) is an additional tool to
>> mitigate the effects of Distributed Denial of Service (DDoS) attacks.
>> Since DDoS attacks are dynamic, filtering of a flow may only be
>> necessary for some specified time, and be undesirable at other times.
>> This document proposes a new BGP path attribute called "Flow Extended
>> Attribute", which carries expected valid period information for a
>> FlowSpec rule. So network administrators can control certain types
>> of traffic in a specified period.
>>=20
>>=20
>>=20
>>=20
>>=20
>> Please note that it may take a couple of minutes from the time of =
submission until the htmlized version and diff are available at =
tools.ietf.org <http://tools.ietf.org/>.
>>=20
>> The IETF Secretariat
>>=20
>> _______________________________________________
>> Idr mailing list
>> Idr@ietf.org <mailto:Idr@ietf.org>
>> https://www.ietf.org/mailman/listinfo/idr =
<https://www.ietf.org/mailman/listinfo/idr>
>=20
> _______________________________________________
> Idr mailing list
> Idr@ietf.org <mailto:Idr@ietf.org>
> https://www.ietf.org/mailman/listinfo/idr =
<https://www.ietf.org/mailman/listinfo/idr>
>=20
>=20


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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">If the purpose is to communicate timing properties attached a =
NLRI, then why limit it to =E2=80=98just=E2=80=99 flow spec AF? it could =
potentially be used for any type NLRI.<div class=3D""><br =
class=3D""></div><div class=3D"">To understand the potential, could you =
share the list of those proposals that were not rolled out due to a =
micro-second BGP signalled timing requirements?</div><div class=3D""><br =
class=3D""></div><div class=3D"">I am trying to understand if for those =
BGP signalling would make sense or if there would be better =
options.</div><div class=3D""><br class=3D""></div><div class=3D"">G/<br =
class=3D""><div class=3D""><br class=3D""></div><div class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""><div><blockquote =
type=3D"cite" class=3D""><div class=3D"">On 19 Oct 2015, at 10:43, =
Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" =
class=3D"">robert@raszuk.net</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div dir=3D"ltr" =
class=3D""><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Hi =
Gunter,</div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">You are =
right if we would limit flowspec to only DDoS mitigation =
tool.&nbsp;</div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Apparentl=
y number of other use cases popped up since flowspec was first =
defined.</div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">So =
while as Thomas already mentioned we could/should discuss choice of =
encoding I am quite sympathetic to the idea proposed by&nbsp;<span =
style=3D"font-size:12.8px;font-family:arial,sans-serif" =
class=3D"">Jianjie.</span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Along =
the same lines today in general we have dropped number of proposals =
which if not rolled out in the same time would create loops. Perhaps =
there is light in the end of the tunnel to be also able to activate =
specific control plane or forwarding behavior at specific time set or =
for specific time set.&nbsp;</div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Best,</di=
v><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">r.</div><=
div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div></div><div class=3D"gmail_extra"><br class=3D""><div =
class=3D"gmail_quote">On Mon, Oct 19, 2015 at 9:31 AM, Gunter Van De =
Velde <span dir=3D"ltr" class=3D"">&lt;<a =
href=3D"mailto:guntervandeveldecc@icloud.com" target=3D"_blank" =
class=3D"">guntervandeveldecc@icloud.com</a>&gt;</span> wrote:<br =
class=3D""><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex"><div class=3D""><div =
class=3D"">Hi Youjianjie,</div><div class=3D""><br class=3D""></div><div =
class=3D"">I would expect a flow spec rule to be valid for consumption =
from the moment its originated from a flow spec controller until it is =
withdrawn by the controller.&nbsp;In the text proposed you relate to =
different forwarding delays for a router to receive the flow spec rule =
and hence justifies a need for new community to specify 'valid-time' for =
the flow spec route. This seems as a pretty light reason for such a =
complex proposed logical machine.</div><div class=3D""><br =
class=3D""></div><div class=3D"">Be well,</div><div =
class=3D"">G/</div><div class=3D""><pre =
style=3D"font-family:'SFNSText','Helvetica =
Neue',Helvetica,sans-serif;font-size:15px;white-space:pre-wrap;word-wrap:b=
reak-word" class=3D"">Sent from iCloud</pre></div><div class=3D""><div =
class=3D"h5"><div class=3D""><br class=3D"">On Oct 19, 2015, at 04:08 =
AM, Youjianjie &lt;<a href=3D"mailto:youjianjie@huawei.com" =
target=3D"_blank" class=3D"">youjianjie@huawei.com</a>&gt; wrote:<br =
class=3D""><br class=3D""></div><div class=3D""><blockquote type=3D"cite" =
class=3D""><div class=3D""><div class=3D""><span class=3D"">Dear all,<br =
class=3D""><br class=3D"">This document proposes a new BGP path =
attribute called "Flow Extended Attribute", which carries expected valid =
period information for a FlowSpec rule.<br class=3D"">Could you please =
review? Your comments are welcome.<br class=3D""><br class=3D"">Thanks,<br=
 class=3D"">Jianjie<br class=3D""><br class=3D"">-----=E9=82=AE=E4=BB=B6=E5=
=8E=9F=E4=BB=B6-----<br class=3D"">=E5=8F=91=E4=BB=B6=E4=BA=BA: <a =
href=3D"mailto:internet-drafts@ietf.org" target=3D"_blank" =
class=3D"">internet-drafts@ietf.org</a> [mailto:<a =
href=3D"mailto:internet-drafts@ietf.org" target=3D"_blank" =
class=3D"">internet-drafts@ietf.org</a>] <br class=3D"">=E5=8F=91=E9=80=81=
=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8819=E6=97=A5 9:58<br =
class=3D"">=E6=94=B6=E4=BB=B6=E4=BA=BA: Liangqiandeng; Zhuangshunwan; =
Youjianjie; Zhuangshunwan; Youjianjie; Liangqiandeng<br class=3D"">=E4=B8=BB=
=E9=A2=98: New Version Notification for =
draft-liang-idr-bgp-flowspec-time-00.txt<br class=3D""><br class=3D""><br =
class=3D"">A new version of I-D, =
draft-liang-idr-bgp-flowspec-time-00.txt<br class=3D"">has been =
successfully submitted by Jianjie You and posted to the IETF =
repository.<br class=3D""><br class=3D"">Name: &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;draft-liang-idr-bgp-flowspec-time<br =
class=3D"">Revision: &nbsp; &nbsp;00<br class=3D"">Title: &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;BGP FlowSpec with Time =
Constraints<br class=3D"">Document date: &nbsp; &nbsp; &nbsp; =
&nbsp;2015-10-18<br class=3D"">Group: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp;Individual Submission<br class=3D"">Pages: &nbsp; =
&nbsp; &nbsp;9<br class=3D"">URL: <a =
href=3D"https://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowspec-=
time-00.txt" target=3D"_blank" =
class=3D"">https://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowsp=
ec-time-00.txt</a><br class=3D"">Status: <a =
href=3D"https://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time=
/" target=3D"_blank" =
class=3D"">https://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-t=
ime/</a><br class=3D"">Htmlized: <a =
href=3D"https://tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00" =
target=3D"_blank" =
class=3D"">https://tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-0=
0</a><br class=3D""><br class=3D""><br class=3D"">Abstract:<br class=3D"">=
 The BGP flow specification (FlowSpec) is an additional tool to<br =
class=3D""> mitigate the effects of Distributed Denial of Service (DDoS) =
attacks.<br class=3D""> Since DDoS attacks are dynamic, filtering of a =
flow may only be<br class=3D""> necessary for some specified time, and =
be undesirable at other times.<br class=3D""> This document proposes a =
new BGP path attribute called "Flow Extended<br class=3D""> Attribute", =
which carries expected valid period information for a<br class=3D""> =
FlowSpec rule. So network administrators can control certain types<br =
class=3D""> of traffic in a specified period.<br class=3D""><br =
class=3D""><br class=3D""> <br class=3D""><br class=3D""><br =
class=3D"">Please note that it may take a couple of minutes from the =
time of submission until the htmlized version and diff are available at =
<a href=3D"http://tools.ietf.org/" target=3D"_blank" =
class=3D"">tools.ietf.org</a>.<br class=3D""><br class=3D"">The IETF =
Secretariat<br class=3D""><br =
class=3D"">_______________________________________________<br =
class=3D"">Idr mailing list<br class=3D""><a href=3D"mailto:Idr@ietf.org" =
target=3D"_blank" class=3D"">Idr@ietf.org</a><br class=3D""><a =
href=3D"https://www.ietf.org/mailman/listinfo/idr" target=3D"_blank" =
class=3D"">https://www.ietf.org/mailman/listinfo/idr</a><br =
class=3D""></span></div></div></blockquote></div></div></div></div><br =
class=3D"">_______________________________________________<br class=3D"">
Idr mailing list<br class=3D"">
<a href=3D"mailto:Idr@ietf.org" class=3D"">Idr@ietf.org</a><br class=3D"">=

<a href=3D"https://www.ietf.org/mailman/listinfo/idr" rel=3D"noreferrer" =
target=3D"_blank" =
class=3D"">https://www.ietf.org/mailman/listinfo/idr</a><br class=3D"">
<br class=3D""></blockquote></div><br class=3D""></div>
</div></blockquote></div><br class=3D""></div></div></body></html>=

--Apple-Mail=_8C74F86F-2644-40BB-91AF-D215B9991E9B--


From nobody Mon Oct 19 12:59:24 2015
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From: Jeffrey Haas <jhaas@pfrc.org>
To: Deniz Bahadir <deniz.bahadir@benocs.com>
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Cc: idr@ietf.org
Subject: Re: [Idr] RFC 4721 FSM - Clarification needed for optional attribute "PassiveTcpEstablishment"
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Deniz,

On Mon, Oct 19, 2015 at 08:48:04PM +0200, Deniz Bahadir wrote:
> While re-reading the main BGP4 RFC (4271) and re-viewing my
> implementation (which I did some time ago) of the FSM described
> therein
> I came across a question concerning the optional FSM-attribute
> "PassiveTcpEstablishment".
> 
> What is it really for?

Caveat: RFC 4271 went out with small issues with the FSM.  Unfortunately I
lost my errata list while changing jobs.  Most are subtle things and require
actively listing all FSM states and transititions to find, but most people
implement some variation on the simpler mechanism from 1771 instead anyway.

There are two types of passive BGP peering that are common.
1. Configured peers that do not initiate outbound peering.  This is the
intended item in the FSM.
2. Peers that are configured via an allowed prefix range and not explicitly
configured.  This is not really in the FSM but is largely indistinguishable
from 1 with the exception that the FSM is intended to be per-peer and these
"allow" prefix ranges don't fit into the FSM model.

Passive peers do not actively try to establish outbound connections.  I
think you can reach the opposite conclusion from the current FSM text.

-- Jeff


From nobody Mon Oct 19 13:12:34 2015
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From: Jeffrey Haas <jhaas@pfrc.org>
To: Gunter Van De Velde <guntervandeveldecc@icloud.com>
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References: <0fb08854-77ad-41fd-bc8e-49621e1e013f@me.com> <CA+b+ERkuW4npZasCJ8ctExJ81E=2PjMPSvpzKjUKsuT5evJfOw@mail.gmail.com> <F42272F9-0836-41A6-B131-19EF705EDCB5@icloud.com>
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Subject: Re: [Idr] New Version Notification for draft-liang-idr-bgp-flowspec-time-00.txt
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On Mon, Oct 19, 2015 at 09:50:10PM +0200, Gunter Van De Velde wrote:
> If the purpose is to communicate timing properties attached a NLRI, then why limit it to ‘just’ flow spec AF? it could potentially be used for any type NLRI.
> 
> To understand the potential, could you share the list of those proposals that were not rolled out due to a micro-second BGP signalled timing requirements?
> 
> I am trying to understand if for those BGP signalling would make sense or if there would be better options.

At the moment, I'm generally opposed to this time-based routes for a few
reasons:

1. They're "time bombs", network behavior becomes tricky to troubleshoot
based on some box's perception of time.  If the impact is intended to apply
to multiple routers, having skew of time may do bad things.  Robert
suggested route loops as an example.

2. Incremental roll-out will be painful.  Some routers will apply the route
immediately, others will wait on the time-bomb.

3. Other service providers probably don't want time bomb semantics of
someone else's route.  As it is, the Internet penalizes route instability.
this makes the feature problematic from a transitivity standpoint.

4. In the absence of add-path routes, these routes seem a bit weird anyway.
You're injecting a route that must be selected to become propagated, but
then you have to distinguish selected vs. installable.

-- Jeff


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From: Jeffrey Haas <jhaas@pfrc.org>
To: Youjianjie <youjianjie@huawei.com>
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Subject: Re: [Idr] Fwd: New Version Notification for draft-liang-idr-bgp-flowspec-time-00.txt
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Jianjie,

On Mon, Oct 19, 2015 at 02:08:35AM +0000, Youjianjie wrote:
> This document proposes a new BGP path attribute called "Flow Extended Attribute", which carries expected valid period information for a FlowSpec rule.
> Could you please review? Your comments are welcome.

I've given some commentary on the time constraints later in the thread.

The description TLV is problematic for a few reasons:
0. Please use UTF-8 encoding for proposals rather than ASCII. :-)

1. They take space in the PDU.  In some cases we're getting close to packing
full BGP PDUs and I suspect the operational benefit of a description is low.
If you must use space for such things, consider some sort of 64-bit number
instead.  Community encoding may be more appropriate.

2. The scoping of this information is a bit too broad.  Especially in a DoS
mitigation context, do you *really* want to tell your downstreams the
information that's attached to the description?  The security ADs might call
this a privacy consideration.

-- Jeff


From nobody Mon Oct 19 15:03:34 2015
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Subject: [Idr] I-D Action: draft-ietf-idr-route-leak-detection-mitigation-01.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Inter-Domain Routing Working Group of the IETF.

        Title           : Methods for Detection and Mitigation of BGP Route Leaks
        Authors         : Kotikalapudi Sriram
                          Doug Montgomery
                          Brian Dickson
                          Keyur Patel
                          Andrei Robachevsky
	Filename        : draft-ietf-idr-route-leak-detection-mitigation-01.txt
	Pages           : 18
	Date            : 2015-10-19

Abstract:
   In [I-D.ietf-grow-route-leak-problem-definition], the authors have
   provided a definition of the route leak problem, and also enumerated
   several types of route leaks.  In this document, we first examine
   which of those route-leak types are detected and mitigated by the
   existing origin validation (OV) [RFC 6811] and BGPSEC path validation
   [I-D.ietf-sidr-bgpsec-protocol].  Where the current OV and BGPSEC
   protocols don't offer a solution, this document suggests an
   enhancement that would extend the route-leak detection and mitigation
   capability of BGPSEC.  The solution can be implemented in BGP without
   necessarily tying it to BGPSEC.  Incorporating the solution in BGPSEC
   is one way of implementing it in a secure way.  We do not claim to
   have provided a solution for all possible types of route leaks, but
   the solution covers several, especially considering some significant
   route-leak attacks or occurrences that have been observed in recent
   years.  The document also includes a stopgap method for detection and
   mitigation of route leaks for the phase when BGPSEC (path validation)
   is not yet deployed but only origin validation is deployed.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-idr-route-leak-detection-mitigation/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-idr-route-leak-detection-mitigation-01

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-route-leak-detection-mitigation-01


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


From nobody Tue Oct 20 02:20:27 2015
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To: Jeffrey Haas <jhaas@pfrc.org>
From: Deniz Bahadir <deniz.bahadir@benocs.com>
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Subject: Re: [Idr] RFC 4721 FSM - Clarification needed for optional attribute "PassiveTcpEstablishment"
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Jeffrey,

Am 19.10.2015 um 22:03 schrieb Jeffrey Haas:
> Deniz,
>
> On Mon, Oct 19, 2015 at 08:48:04PM +0200, Deniz Bahadir wrote:
>> While re-reading the main BGP4 RFC (4271) and re-viewing my
>> implementation (which I did some time ago) of the FSM described
>> therein
>> I came across a question concerning the optional FSM-attribute
>> "PassiveTcpEstablishment".
>>
>> What is it really for?
>
> Caveat: RFC 4271 went out with small issues with the FSM.  Unfortunately I
> lost my errata list while changing jobs.  Most are subtle things and require
> actively listing all FSM states and transititions to find, but most people
> implement some variation on the simpler mechanism from 1771 instead anyway.
>
> There are two types of passive BGP peering that are common.
> 1. Configured peers that do not initiate outbound peering.  This is the
> intended item in the FSM.
> 2. Peers that are configured via an allowed prefix range and not explicitly
> configured.  This is not really in the FSM but is largely indistinguishable
> from 1 with the exception that the FSM is intended to be per-peer and these
> "allow" prefix ranges don't fit into the FSM model.
>
> Passanywayive peers do not actively try to establish outbound connections.  I
> think you can reach the opposite conclusion from the current FSM text.
>
> -- Jeff
>

Thank you for your clarification.

I think, I will then extend my implementation to incorporate "special 
behavior" for the case of "PassiveTcpEstablishment" being enabled.
I will implement it as if the paragraph for state ACTIVE in RFC 4271 
reads like this:

       In response to a ConnectRetryTimer_Expires event (Event 9), the
       local system checks the PassiveTcpEstablishment optional attribute
       prior to processing.

         If the PassiveTcpEstablishment attribute is set to TRUE, the
         local system:

           - restarts the ConnectRetryTimer (with initial value),

           - continues to listen for a TCP connection that may be
             initiated by a remote BGP peer, and

           - stays in the Active state.

         If the PassiveTcpEstablishment attribute is set to FALSE, the
         local system:

           - restarts the ConnectRetryTimer (with initial value),

           - initiates a TCP connection to the other BGP peer,

           - continues to listen for a TCP connection that may be
             initiated by a remote BGP peer, and

           - changes its state to Connect.


Should I commit this as error-report? Or is it too technical and, 
because it changes the behavior described in the RFC, would be rejected 
anyway?

Deniz

-- 
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From: Jeffrey Haas <jhaas@pfrc.org>
To: Deniz Bahadir <deniz.bahadir@benocs.com>
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Subject: Re: [Idr] RFC 4721 FSM - Clarification needed for optional attribute "PassiveTcpEstablishment"
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Deniz,

On Tue, Oct 20, 2015 at 11:20:11AM +0200, Deniz Bahadir wrote:
> I think, I will then extend my implementation to incorporate
> "special behavior" for the case of "PassiveTcpEstablishment" being
> enabled.
> I will implement it as if the paragraph for state ACTIVE in RFC 4271
> reads like this:
> 
>       In response to a ConnectRetryTimer_Expires event (Event 9), the
>       local system checks the PassiveTcpEstablishment optional attribute
>       prior to processing.
> 
>         If the PassiveTcpEstablishment attribute is set to TRUE, the
>         local system:
> 
>           - restarts the ConnectRetryTimer (with initial value),

The ConnectRetryTimer is intended to provide an upper bound to an outbound
TCP session that hasn't reached the established state.  In passive mode, no
outbound session should be happening and thus no timer should be started.

> Should I commit this as error-report? Or is it too technical and,
> because it changes the behavior described in the RFC, would be
> rejected anyway?

In IETF, correct technical errata are always worth reporting.  In this
specific case, the BGP state machine is complicated enough that I would
consider auditing the states to look for side effects needed for correct
functioning before filing such errata.  In this particular case, I think
this is simply wrong and the errata would be clear as noted above with the
connectretrytimer not being started when in passive mode.

It should be noted that the FSM doesn't really accommodate reconfiguration
events that may toggle flags such as passive, and thus excessive pedantry in
the specification will still not cover all possible changes.

-- Jeff


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To: Jeffrey Haas <jhaas@pfrc.org>
From: Deniz Bahadir <deniz.bahadir@benocs.com>
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Subject: Re: [Idr] RFC 4721 FSM - Clarification needed for optional attribute "PassiveTcpEstablishment"
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Jeffrey,

Am 20.10.2015 um 15:00 schrieb Jeffrey Haas:
>
> The ConnectRetryTimer is intended to provide an upper bound to an outbound
> TCP session that hasn't reached the established state.  In passive mode, no
> outbound session should be happening and thus no timer should be started.

If this is the intention of the ConnectRetryTimer then it probably 
should be mentioned in the RFC. I quickly searched through it but did 
not find a real definition of what this timer and its counter really 
should be used for.
To be fair, the name might be a hint to its intended meaning, but an 
explicit definition in the RFC would be more helpful.

However, if the ConnectRetryTimer should not be started/used when using 
PassiveTcpEstablishment why is it started in the first place when the 
FSM starts with event 4 (ManualStart_with_PassiveTcpEstablishment) or 
event 5 (AutomaticStart_with_PassiveTcpEstablishment)?

I guess, this is one of the several (minor) issues with the FSM you 
mentioned in your earlier email.

>> Should I commit this as error-report? Or is it too technical and,
>> because it changes the behavior described in the RFC, would be
>> rejected anyway?
>
> In IETF, correct technical errata are always worth reporting.  In this
> specific case, the BGP state machine is complicated enough that I would
> consider auditing the states to look for side effects needed for correct
> functioning before filing such errata.  In this particular case, I think
> this is simply wrong and the errata would be clear as noted above with the
> connectretrytimer not being started when in passive mode.

Sounds quite complicated and time-consuming but I will try it, when I 
find some time for it.

> It should be noted that the FSM doesn't really accommodate reconfiguration
> events that may toggle flags such as passive, and thus excessive pedantry in
> the specification will still not cover all possible changes.

Maybe it is time for an RFC revising and clarifying the BGP FSM (similar 
to RFC 7606)? ;-)
But I assume, that there will not be too much interest in it, as most 
(or all?) implementations work to satisfaction.

Thanks again,
Deniz

-- 
BENOCS GmbH
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10781 Berlin
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From nobody Tue Oct 20 08:06:55 2015
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On 27/08/2015 01:48, Susan Hares wrote:
> Editorial Nit:
> 
> Please add to the third paragraph of section 5 the following sentence.
> 
> “Please note that RFC1863 has been made historical by RFC4223.”

Due to some git related stupidity, this comment was accidentally dropped
from -09.  I've added the comment back into the git repo and it will be
reappear in draft -10, which we'll post as soon as the submission tool is
open again.  Doh.

Nick


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From nobody Tue Oct 20 08:09:12 2015
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From: "Susan Hares" <shares@ndzh.com>
To: "'Nick Hilliard'" <nick@inex.ie>, <draft-ietf-idr-ix-bgp-route-server@ietf.org>, <idr@ietf.org>
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Subject: Re: [Idr] Shepherd report on draft-ietf-idr-ixp-bgp-router-server-07
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Nick: 

Do not worry.   I'm just trying to make sure I get the outstanding WG LC
through the IESG in early November. 

Sue 

-----Original Message-----
From: Nick Hilliard [mailto:nick@inex.ie] 
Sent: Tuesday, October 20, 2015 10:59 AM
To: Susan Hares; draft-ietf-idr-ix-bgp-route-server@ietf.org; idr@ietf.org
Cc: 'Alvaro Retana (aretana)'
Subject: Re: Shepherd report on draft-ietf-idr-ixp-bgp-router-server-07

On 27/08/2015 01:48, Susan Hares wrote:
> Editorial Nit:
> 
> Please add to the third paragraph of section 5 the following sentence.
> 
> "Please note that RFC1863 has been made historical by RFC4223."

Due to some git related stupidity, this comment was accidentally dropped
from -09.  I've added the comment back into the git repo and it will be
reappear in draft -10, which we'll post as soon as the submission tool is
open again.  Doh.

Nick



From nobody Thu Oct 22 02:22:38 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Uma Chunduri'" <uma.chunduri@ericsson.com>, "Alvaro Retana" <aretana@cisco.com>
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Subject: Re: [Idr] "Final" revision : draft-ietf-idr-ls-distribution-13.txt
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Hello Uma,

[Alvaro: What would you like us to do with these late-breaking comments?]

> 1. Section 3.2.1.4 - BGP-LS Identifier:
>      "The ASN, BGP Router-ID tuple (which is globally unique
>       [RFC6286] ) of one of the BGP-LS speakers within the flooding-set
>       (or IGP domain) may be used for all BGP-LS speakers in that
>       flooding-set (or IGP domain)."
> 
>       Would suggest "may be used" to "MAY be used"
>
>       Perhaps this has been discussed earlier, but RFC 6286 requirement is
"unique"
>       with in AS, which fits well for  a router-ID but the LS-Identifier being
talked
>       about has to be "same" with the IGP flooding domain.
>       So to me, actually I am not really sure why we should add this statement
at all.

I think I agree that 
      All BGP-LS speakers
      within an IGP flooding-set (set of IGP nodes within which an LSP/
      LSA is flooded) MUST use the same ASN, BGP-LS ID tuple.
makes 
     The ASN, BGP Router-ID tuple (which is globally unique
      [RFC6286] ) of one of the BGP-LS speakers within the flooding-set
      (or IGP domain) may be used for all BGP-LS speakers in that
      flooding-set (or IGP domain).
redundant. I suspect it is old text that was better stated by new text inserted
above.

It is not wrong, but could safely be deleted.

> Typo?:
> 
> 2.  Section 3.3.3:
>      "   Prefixes are learned from the IGP topology (IS-IS or OSPF) with a set
>    of IGP attributes (such as metric, route tags, etc.) that MUST be
>    reflected into the BGP-LS attribute with a link NLRI."
> 
> 
>     ".. attribute with a link NLRI" ==> ".. attribute with a prefix NLRI"

Yes, I think that is right.
 
> Nit:
> 3. Section 3.1:
> 
>    "of the
>    string. .  All TLVs that are not specified as mandatory are
>    considered optional."

Shock! ;-)

Thanks,
Adrian



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From: "Alvaro Retana (aretana)" <aretana@cisco.com>
To: Adrian Farrel <adrian@olddog.co.uk>, "'Uma Chunduri'" <uma.chunduri@ericsson.com>
Thread-Topic: [Idr] "Final" revision : draft-ietf-idr-ls-distribution-13.txt
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Subject: Re: [Idr] "Final" revision : draft-ietf-idr-ls-distribution-13.txt
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On 10/22/15, 5:22 AM, "Adrian Farrel" <adrian@olddog.co.uk> wrote:

Adrian:

Hi!

>[Alvaro: What would you like us to do with these late-breaking comments?]

I'll put in a note to the RFC Editor and move this document forward.  See
below.

Thanks!

Alvaro.

>
>> 1. Section 3.2.1.4 - BGP-LS Identifier:
>>      "The ASN, BGP Router-ID tuple (which is globally unique
>>       [RFC6286] ) of one of the BGP-LS speakers within the flooding-set
>>       (or IGP domain) may be used for all BGP-LS speakers in that
>>       flooding-set (or IGP domain)."
>>=20
>>       Would suggest "may be used" to "MAY be used"
>>
>>       Perhaps this has been discussed earlier, but RFC 6286 requirement
>>is
>"unique"
>>       with in AS, which fits well for  a router-ID but the
>>LS-Identifier being
>talked
>>       about has to be "same" with the IGP flooding domain.
>>       So to me, actually I am not really sure why we should add this
>>statement
>at all.
>
>I think I agree that
>      All BGP-LS speakers
>      within an IGP flooding-set (set of IGP nodes within which an LSP/
>      LSA is flooded) MUST use the same ASN, BGP-LS ID tuple.
>makes=20
>     The ASN, BGP Router-ID tuple (which is globally unique
>      [RFC6286] ) of one of the BGP-LS speakers within the flooding-set
>      (or IGP domain) may be used for all BGP-LS speakers in that
>      flooding-set (or IGP domain).
>redundant. I suspect it is old text that was better stated by new text
>inserted
>above.
>
>It is not wrong, but could safely be deleted.

I'll ask for that last sentence in the description of the BGP-LS
Identifier to be deleted.


>
>> Typo?:
>>=20
>> 2.  Section 3.3.3:
>>      "   Prefixes are learned from the IGP topology (IS-IS or OSPF)
>>with a set
>>    of IGP attributes (such as metric, route tags, etc.) that MUST be
>>    reflected into the BGP-LS attribute with a link NLRI."
>>=20
>>=20
>>     ".. attribute with a link NLRI" =3D=3D> ".. attribute with a prefix
>>NLRI"
>
>Yes, I think that is right.

Including this too.



>=20
>> Nit:
>> 3. Section 3.1:
>>=20
>>    "of the
>>    string. .  All TLVs that are not specified as mandatory are
>>    considered optional."
>
>Shock! ;-)

The nit was in the double ".".


From nobody Thu Oct 22 06:05:40 2015
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Subject: [Idr] Protocol Action: 'North-Bound Distribution of Link-State and TE Information using BGP' to Proposed Standard (draft-ietf-idr-ls-distribution-13.txt)
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The IESG has approved the following document:
- 'North-Bound Distribution of Link-State and TE Information using BGP'
  (draft-ietf-idr-ls-distribution-13.txt) as Proposed Standard

This document is the product of the Inter-Domain Routing Working Group.

The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah
Brungard.

A URL of this Internet Draft is:
https://datatracker.ietf.org/doc/draft-ietf-idr-ls-distribution/





Technical Summary

   In a number of environments, a component external to a network is
   called upon to perform computations based on the network topology and
   current state of the connections within the network, including
   traffic engineering information.  This is information typically
   distributed by IGP routing protocols within the network.

   This document describes a mechanism by which links state and traffic
   engineering information can be collected from networks and shared
   with external components using the BGP routing protocol.  This is
   achieved using a new BGP Network Layer Reachability Information
   (NLRI) encoding format.  The mechanism is applicable to physical and
   virtual IGP links.  The mechanism described is subject to policy
   control.

   Applications of this technique include Application Layer Traffic
   Optimization (ALTO) servers, and Path Computation Elements (PCEs).

Working Group Summary

  The idr WG has had discussions and extensive reviews for several years.
  There is strong consensus in publication.

Document Quality

  The document has has extensive reviews in the idr WG for several years.  There have been 7 implementations reported.
  Implementation report:  https://tools.ietf.org/html/draft-ietf-idr-ls-distribution-impl

Personnel

Document Shepherd: Jie Ding (jie.dong@huawei.com)
Responsible AD: Alvaro Retana (aretana@cisco.com)

RFC Editor Note

RFC Editor: a couple of late editorial changes.
1. Section 3.2.1.4: The last sentence ("The ASN...or IGP domain).") in the description of BGP-LS Identifier should be deleted.
2. Section 3.3.3: Change "with a link NLRI" to "with a prefix NLRI" in the first sentence.
3. Section 3.1: There's an extra "." right before the last sentence.


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Archived-At: <http://mailarchive.ietf.org/arch/msg/idr/1m4aZ9mZzNXgwgeU7pWnVK0o8wI>
Subject: [Idr] Comments on draft-ietf-idr-bgp-prefix-sid-01
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I'd like to make some suggestions for textual changes to sections 3.1 and
4.3 of draft-ietf-idr-prefix-sid.  The main purpose of these suggestions is
to clarify the use of the Originator SRGB TLV, and to remove what I
think is an excessive and distracting amount of repetition about the
inadvisability of allowing different nodes to use different SRGBs.

My proposal for the text of these sections follows.  In addition to the
changes I mentioned above, some typos in the original text are fixed, and
there is a suggestion (explained below in brackets) for slightly modifying
the text about the AFI/SAFIs with which the Prefix-SID attribute may be
used.  A few other explanations can be found in brackets below inside the
proposed text.

--------------------

3.1.  MPLS Prefix Segment

    In this document, we specify "MPLS Prefix Segments" only for BGP routes
    that have an AFI/SAFI of 1/4 or 2/4.  The applicability of MPLS prefix
    segments to other AFI/SAFIs is outside the scope of this document.

[The original text said "A Multiprotocol BGP labeled IPv4/IPv6 Unicast
([RFC3107]) session type is required", I don't think that is quite precise.
If a session has multiple AFI/SAFIs, including 1/4, I don't think we 
want to
say that the attribute can be placed in any UPDATE on that session.  Also,
it's not quite accurate to say that RFC3107 is restricted to 1/4 and 2/4;
RFC3107 doesn't mention the AFI.  And we may want to leave it open that the
Prefix Segment notion may eventually be applied somehow to SAFI-128 
routes.]

    The BGP Prefix Segment is realized on the MPLS dataplane in the
    following way:

       As described in [I-D.ietf-spring-segment-routing-msdc] the
       operator assigns a globally unique "index", L_I, to a locally
       sourced prefix of a BGP speaker N which is advertised to all other
       BGP speakers in the SR domain.

       According to [I-D.ietf-spring-segment-routing], each BGP speaker
       is configured with a label block called the Segment Routing Global
       Block (SRGB).  (While it is recommended to use the same SRGB across
       all the nodes within the SR domain, the SRGB of a node is a local
       property and could be different on different speakers).

       The index L_I is a 32 bit offset in the SRGB.  Each BGP speaker
       derives its local MPLS label, L, by adding L_I to the start value
       of its own SRGB, and programs L in its MPLS dataplane as its
       incoming/local label for the prefix.  (See section 5.1 for more
       details.)

[Added reference to section 5.1.]

       The outgoing label for the prefix is found in the NLRI of the
       Multiprotocol BGP labeled IPv4/IPv6 Unicast prefix advertisement.
       The index L_I is only used as a hint to derive the local/incoming
       label.

    Section 4.1 of this document specifies the Label-Index TLV of the BGP
    Prefix-SID attribute; this TLV can be used to advertise the label index
    of a given prefix.

    If the BGP speakers are not all configured with the same SRGB, and if
    traffic-engineering within the SR domain is required, each node may be
    required to advertise its local SRGB.  One way of advertising the local
    SRGB is to use the segment routing extensions of BGP-LS
    (draft-gredler-idr-bgp-ls-segment-routing-ext-00.txt). An alternative
    option is to use the Originator SRGB TLV of the prefix-SID 
attribute, as
    specified in Section 4.3 of this document.

[Rearranged last paragraphs slightly to improve flow, imo.]



4.3.  Originator SRGB TLV

    The Originator SRGB TLV is an optional TLV and has the following
    format:

      0                   1 2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Type      |          Length               | Flags      |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |     Flags     |
     +-+-+-+-+-+-+-+-+

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |         SRGB 1 (6 octets)                                     |
     | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |         SRGB n (6 octets)                                     |
     | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

[I can rarely get the ascii art to render correctly, but the diagram above
is supposed to be unchanged from what appears in the draft.]

    where:

    o  Type is 3.

    o  Length is the total length of the value portion of the TLV: 2 +
       multiple of 6.

    o  Flags: 16 bits of flags.  None are defined in this document.
       Flags SHOULD be clear on transmission and MUST be ignored at
       reception.

    o  SRGB: 3 octets of base followed by 3 octets of range.  Note that the
       SRGB field MAY appear multiple times.  If the SRGB field appears
       multiple times, the SRGB consists of multiple ranges.  The 
meaning of
       an SRGB with multiple ranges is explained in Section 3.2 ("SID/Label
       Range TLV") of [I-D.ietf-ospf-segment-routing-extensions].

[Added some text about the semantics of the SRGB field appearing multiple
times, with reference to a document that actually explains it.]

    When a BGP speaker attaches a Prefix-SID attribute to a given route, 
the
    Originator SRGB TLV MUST NOT be included in the attribute unless the
    following conditions hold:

    - The prefix field of the route's NLRI contains a host address (i.e., a
      /32 IPv4 address or a /128 IPv6 address).

    - The value of the Originator SRGB TLV specifies the SRGB of the node
      that is identified by the prefix field of the NLRI.

[This paragraph and bullet items are added in order to make clear just what
the semantics of the TLV are.]

    If a BGP route is received that contains a Prefix-SID attribute with an
    Originator SRGB TLV, but the prefix field of the NLRI does not 
contain a
    host address, the attribute SHOULD be regarded as malformed. If a
    Prefix-SID attribute contains more than one SRGB TLV, it SHOULD be
    regarded as malformed.  See section 7 for the treatment of a malformed
    Prefix-SID attribute.

    When a route carrying the Prefix-SID attribute is propagated, the
    Originator SRGB TLV (if present) MUST NOT be changed.

-----------------




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    <meta http-equiv="content-type" content="text/html; charset=utf-8">
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  <body bgcolor="#FFFFFF" text="#000000">
    <div class="moz-text-flowed" style="font-family: -moz-fixed;
      font-size: 14px;" lang="x-unicode">I'd like to make some
      suggestions for textual changes to sections 3.1 and
      <br>
      4.3 of draft-ietf-idr-prefix-sid.  The main purpose of these
      suggestions is
      <br>
      to clarify the use of the Originator SRGB TLV, and to remove what
      I
      <br>
      think is an excessive and distracting amount of repetition about
      the
      <br>
      inadvisability of allowing different nodes to use different SRGBs.
      <br>
      <br>
      My proposal for the text of these sections follows.  In addition
      to the
      <br>
      changes I mentioned above, some typos in the original text are
      fixed, and
      <br>
      there is a suggestion (explained below in brackets) for slightly
      modifying
      <br>
      the text about the AFI/SAFIs with which the Prefix-SID attribute
      may be
      <br>
      used.  A few other explanations can be found in brackets below
      inside the
      <br>
      proposed text.
      <br>
      <br>
      --------------------
      <br>
      <br>
      3.1.  MPLS Prefix Segment
      <br>
      <br>
         In this document, we specify "MPLS Prefix Segments" only for
      BGP routes
      <br>
         that have an AFI/SAFI of 1/4 or 2/4.  The applicability of MPLS
      prefix
      <br>
         segments to other AFI/SAFIs is outside the scope of this
      document.
      <br>
      <br>
      [The original text said "A Multiprotocol BGP labeled IPv4/IPv6
      Unicast
      <br>
      ([RFC3107]) session type is required", I don't think that is quite
      precise.
      <br>
      If a session has multiple AFI/SAFIs, including 1/4, I don't think
      we want to
      <br>
      say that the attribute can be placed in any UPDATE on that
      session.  Also,
      <br>
      it's not quite accurate to say that RFC3107 is restricted to 1/4
      and 2/4;
      <br>
      RFC3107 doesn't mention the AFI.  And we may want to leave it open
      that the
      <br>
      Prefix Segment notion may eventually be applied somehow to
      SAFI-128 routes.]
      <br>
      <br>
         The BGP Prefix Segment is realized on the MPLS dataplane in the
      <br>
         following way:
      <br>
      <br>
            As described in [I-D.ietf-spring-segment-routing-msdc] the
      <br>
            operator assigns a globally unique "index", L_I, to a
      locally
      <br>
            sourced prefix of a BGP speaker N which is advertised to all
      other
      <br>
            BGP speakers in the SR domain.
      <br>
      <br>
            According to [I-D.ietf-spring-segment-routing], each BGP
      speaker
      <br>
            is configured with a label block called the Segment Routing
      Global
      <br>
            Block (SRGB).  (While it is recommended to use the same SRGB
      across
      <br>
            all the nodes within the SR domain, the SRGB of a node is a
      local
      <br>
            property and could be different on different speakers).
      <br>
      <br>
            The index L_I is a 32 bit offset in the SRGB.  Each BGP
      speaker
      <br>
            derives its local MPLS label, L, by adding L_I to the start
      value
      <br>
            of its own SRGB, and programs L in its MPLS dataplane as its
      <br>
            incoming/local label for the prefix.  (See section 5.1 for
      more
      <br>
            details.)
      <br>
      <br>
      [Added reference to section 5.1.]
      <br>
      <br>
            The outgoing label for the prefix is found in the NLRI of
      the
      <br>
            Multiprotocol BGP labeled IPv4/IPv6 Unicast prefix
      advertisement.
      <br>
            The index L_I is only used as a hint to derive the
      local/incoming
      <br>
            label.
      <br>
      <br>
         Section 4.1 of this document specifies the Label-Index TLV of
      the BGP
      <br>
         Prefix-SID attribute; this TLV can be used to advertise the
      label index
      <br>
         of a given prefix.
      <br>
      <br>
         If the BGP speakers are not all configured with the same SRGB,
      and if
      <br>
         traffic-engineering within the SR domain is required, each node
      may be
      <br>
         required to advertise its local SRGB.  One way of advertising
      the local
      <br>
         SRGB is to use the segment routing extensions of BGP-LS
      <br>
         (draft-gredler-idr-bgp-ls-segment-routing-ext-00.txt). An
      alternative
      <br>
         option is to use the Originator SRGB TLV of the prefix-SID
      attribute, as
      <br>
         specified in Section 4.3 of this document.
      <br>
      <br>
      [Rearranged last paragraphs slightly to improve flow, imo.]
      <br>
      <br>
      <br>
      <br>
      4.3.  Originator SRGB TLV
      <br>
      <br>
         The Originator SRGB TLV is an optional TLV and has the
      following
      <br>
         format:
      <br>
      <br>
           0                   1 2                   3
      <br>
           0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
      1
      <br>
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      <br>
          |     Type      |          Length               | Flags      |
      <br>
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      <br>
          |     Flags     |
      <br>
          +-+-+-+-+-+-+-+-+
      <br>
      <br>
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      <br>
          |         SRGB 1 (6
      octets)                                     |
      <br>
          | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      <br>
          |                               |
      <br>
          +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      <br>
      <br>
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      <br>
          |         SRGB n (6
      octets)                                     |
      <br>
          | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      <br>
          |                               |
      <br>
          +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      <br>
      <br>
      [I can rarely get the ascii art to render correctly, but the
      diagram above
      <br>
      is supposed to be unchanged from what appears in the draft.]
      <br>
      <br>
         where:
      <br>
      <br>
         o  Type is 3.
      <br>
      <br>
         o  Length is the total length of the value portion of the TLV:
      2 +
      <br>
            multiple of 6.
      <br>
      <br>
         o  Flags: 16 bits of flags.  None are defined in this document.
      <br>
            Flags SHOULD be clear on transmission and MUST be ignored at
      <br>
            reception.
      <br>
      <br>
         o  SRGB: 3 octets of base followed by 3 octets of range.  Note
      that the
      <br>
            SRGB field MAY appear multiple times.  If the SRGB field
      appears
      <br>
            multiple times, the SRGB consists of multiple ranges.  The
      meaning of
      <br>
            an SRGB with multiple ranges is explained in Section 3.2
      ("SID/Label
      <br>
            Range TLV") of [I-D.ietf-ospf-segment-routing-extensions].
      <br>
      <br>
      [Added some text about the semantics of the SRGB field appearing
      multiple
      <br>
      times, with reference to a document that actually explains it.]
      <br>
      <br>
         When a BGP speaker attaches a Prefix-SID attribute to a given
      route, the
      <br>
         Originator SRGB TLV MUST NOT be included in the attribute
      unless the
      <br>
         following conditions hold:
      <br>
      <br>
         - The prefix field of the route's NLRI contains a host address
      (i.e., a
      <br>
           /32 IPv4 address or a /128 IPv6 address).
      <br>
      <br>
         - The value of the Originator SRGB TLV specifies the SRGB of
      the node
      <br>
           that is identified by the prefix field of the NLRI.
      <br>
      <br>
      [This paragraph and bullet items are added in order to make clear
      just what
      <br>
      the semantics of the TLV are.]
      <br>
      <br>
         If a BGP route is received that contains a Prefix-SID attribute
      with an
      <br>
         Originator SRGB TLV, but the prefix field of the NLRI does not
      contain a
      <br>
         host address, the attribute SHOULD be regarded as malformed. If
      a
      <br>
         Prefix-SID attribute contains more than one SRGB TLV, it SHOULD
      be
      <br>
         regarded as malformed.  See section 7 for the treatment of a
      malformed
      <br>
         Prefix-SID attribute.
      <br>
      <br>
         When a route carrying the Prefix-SID attribute is propagated,
      the
      <br>
         Originator SRGB TLV (if present) MUST NOT be changed.
      <br>
      <br>
      -----------------
      <br>
      <br>
      <br>
      <br>
    </div>
  </body>
</html>

--------------060503040909080405030207--


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Thread-Topic: [Idr] New Version Notification for draft-liang-idr-bgp-flowspec-time-00.txt
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From: Youjianjie <youjianjie@huawei.com>
To: Gunter Van De Velde <guntervandeveldecc@icloud.com>
Thread-Topic: [Idr] New Version Notification for draft-liang-idr-bgp-flowspec-time-00.txt
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Date: Fri, 23 Oct 2015 06:35:06 +0000
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--_000_F6C28B32DA084644BB6C8D0BD65B669D1FABC4nkgeml509mbschina_--


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From: Gunter Van De Velde <guntervandeveldecc@icloud.com>
In-reply-to: <F6C28B32DA084644BB6C8D0BD65B669D1FAB9D@nkgeml509-mbs.china.huawei.com>
Date: Fri, 23 Oct 2015 09:16:52 +0200
Message-id: <7DA0A712-F2B6-43F6-8270-6E677A9A4A2F@icloud.com>
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To: Youjianjie <youjianjie@huawei.com>
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Subject: Re: [Idr] New Version Notification for draft-liang-idr-bgp-flowspec-time-00.txt
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Hi Jianjie,

I can understand the desire to have particular filter rules active on =
particular times of the day. I am not convinced that sending timing =
context along with a BGP NLRI is the way to achieve this.

A relevant difference between ACL and BGP is that ACL tends to be static =
and BGP is dynamic by nature.

By announcing and withdrawing a BGP NLRI you can make a rule dynamic, =
unless there is an absolute need to have activation/de-activation in =
msec sync=E2=80=99d.
Hence, we have a solution with BGP that is dynamic and provides relative =
network wide synchronised network behaviour (announce/withdraw), but it =
is indeed not synchronous to the msec. =20

Making network control sync on msec is not easy and a valid question is =
if BGP should be part in such a goal?=20
(There are also operational aspects to troubleshoot the network in case =
of unexpected behaviour =E2=80=A6 )

Brgds,
G/





> On 23 Oct 2015, at 08:35, Youjianjie <youjianjie@huawei.com> wrote:
>=20
> Hi Gunter,
> =20
> We collect the requirements from our customers. Actually traditional =
ACLs already support similar functions.
> For the last sentence, could you please explain a little more? Why do =
you think it is complex?
> =20
> Thanks,
> Jianjie
> =20
> =E5=8F=91=E4=BB=B6=E4=BA=BA: Gunter Van De Velde =
[mailto:guntervandeveldecc@icloud.com]=20
> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8819=E6=97=A5=
 15:32
> =E6=94=B6=E4=BB=B6=E4=BA=BA: Youjianjie
> =E6=8A=84=E9=80=81: idr@ietf.org
> =E4=B8=BB=E9=A2=98: Re: [Idr] New Version Notification for =
draft-liang-idr-bgp-flowspec-time-00.txt
> =20
> Hi Youjianjie,
> =20
> I would expect a flow spec rule to be valid for consumption from the =
moment its originated from a flow spec controller until it is withdrawn =
by the controller. In the text proposed you relate to different =
forwarding delays for a router to receive the flow spec rule and hence =
justifies a need for new community to specify 'valid-time' for the flow =
spec route. This seems as a pretty light reason for such a complex =
proposed logical machine.
> =20
> Be well,
> G/
> Sent from iCloud
>=20
> On Oct 19, 2015, at 04:08 AM, Youjianjie <youjianjie@huawei.com =
<mailto:youjianjie@huawei.com>> wrote:
>=20
> Dear all,
>=20
> This document proposes a new BGP path attribute called "Flow Extended =
Attribute", which carries expected valid period information for a =
FlowSpec rule.
> Could you please review? Your comments are welcome.
>=20
> Thanks,
> Jianjie
>=20
> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6-----
> =E5=8F=91=E4=BB=B6=E4=BA=BA: internet-drafts@ietf.org =
<mailto:internet-drafts@ietf.org> [mailto:internet-drafts@ietf.org =
<mailto:internet-drafts@ietf.org>]=20
> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8819=E6=97=A5=
 9:58
> =E6=94=B6=E4=BB=B6=E4=BA=BA: Liangqiandeng; Zhuangshunwan; Youjianjie; =
Zhuangshunwan; Youjianjie; Liangqiandeng
> =E4=B8=BB=E9=A2=98: New Version Notification for =
draft-liang-idr-bgp-flowspec-time-00.txt
>=20
>=20
> A new version of I-D, draft-liang-idr-bgp-flowspec-time-00.txt
> has been successfully submitted by Jianjie You and posted to the IETF =
repository.
>=20
> Name:                draft-liang-idr-bgp-flowspec-time
> Revision:    00
> Title:                BGP FlowSpec with Time Constraints
> Document date:        2015-10-18
> Group:                Individual Submission
> Pages:      9
> URL: =
https://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowspec-time-00.=
txt =
<https://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowspec-time-00=
.txt>
> Status: =
https://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/ =
<https://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/>
> Htmlized: =
https://tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00 =
<https://tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00>
>=20
>=20
> Abstract:
> The BGP flow specification (FlowSpec) is an additional tool to
> mitigate the effects of Distributed Denial of Service (DDoS) attacks.
> Since DDoS attacks are dynamic, filtering of a flow may only be
> necessary for some specified time, and be undesirable at other times.
> This document proposes a new BGP path attribute called "Flow Extended
> Attribute", which carries expected valid period information for a
> FlowSpec rule. So network administrators can control certain types
> of traffic in a specified period.
>=20
>=20
>=20
>=20
>=20
> Please note that it may take a couple of minutes from the time of =
submission until the htmlized version and diff are available at =
tools.ietf.org.
>=20
> The IETF Secretariat
>=20
> _______________________________________________
> Idr mailing list
> Idr@ietf.org <mailto:Idr@ietf.org>
> https://www.ietf.org/mailman/listinfo/idr =
<https://www.ietf.org/mailman/listinfo/idr>

--Apple-Mail=_82C822EA-2E79-4500-BB16-B93F7F5819F8
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><div class=3D"">Hi Jianjie,</div><div class=3D""><br =
class=3D""></div><div class=3D"">I can understand the desire to have =
particular filter rules active on particular times of the day. I am not =
convinced that sending timing context along with a BGP NLRI is the way =
to achieve this.</div><div class=3D""><br class=3D""></div><div =
class=3D"">A relevant difference between ACL and BGP is that ACL tends =
to be static and BGP is dynamic by nature.</div><div class=3D""><br =
class=3D""></div><div class=3D"">By announcing and withdrawing a BGP =
NLRI you can make a rule dynamic, unless there is an absolute need to =
have activation/de-activation in msec sync=E2=80=99d.</div><div =
class=3D"">Hence, we have a solution with BGP that is dynamic and =
provides relative network wide synchronised network behaviour =
(announce/withdraw), but it is indeed not synchronous to the msec. =
&nbsp;</div><div class=3D""><br class=3D""></div><div class=3D"">Making =
network control sync on msec is not easy and a valid question is if BGP =
should be part in such a goal?&nbsp;</div><div class=3D"">(There are =
also operational aspects to troubleshoot the network in case of =
unexpected behaviour =E2=80=A6 )</div><div class=3D""><br =
class=3D""></div><div class=3D"">Brgds,</div><div class=3D"">G/</div><div =
class=3D""><br class=3D""></div><div class=3D""><br class=3D""></div><div =
class=3D""><br class=3D""></div><div class=3D""><br class=3D""></div><br =
class=3D""><div><blockquote type=3D"cite" class=3D""><div class=3D"">On =
23 Oct 2015, at 08:35, Youjianjie &lt;<a =
href=3D"mailto:youjianjie@huawei.com" =
class=3D"">youjianjie@huawei.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div =
class=3D"WordSection1" style=3D"page: WordSection1; font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: =
=E5=AE=8B=E4=BD=93;" class=3D""><span lang=3D"EN-US" style=3D"font-size: =
10.5pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" =
class=3D"">Hi Gunter,<o:p class=3D""></o:p></span></div><div =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: =
=E5=AE=8B=E4=BD=93;" class=3D""><span lang=3D"EN-US" style=3D"font-size: =
10.5pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" =
class=3D""><o:p class=3D"">&nbsp;</o:p></span></div><div style=3D"margin: =
0cm 0cm 0.0001pt; font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93;" =
class=3D""><span lang=3D"EN-US" style=3D"font-size: 10.5pt; font-family: =
Calibri, sans-serif; color: rgb(31, 73, 125);" class=3D"">We collect the =
requirements from our customers. Actually traditional ACLs already =
support similar functions.<o:p class=3D""></o:p></span></div><div =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: =
=E5=AE=8B=E4=BD=93;" class=3D""><span lang=3D"EN-US" style=3D"font-size: =
10.5pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" =
class=3D"">For the last sentence, could you please explain a little =
more? Why do you think it is complex?<o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0cm 0cm 0.0001pt; =
font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93;" class=3D""><span =
lang=3D"EN-US" style=3D"font-size: 10.5pt; font-family: Calibri, =
sans-serif; color: rgb(31, 73, 125);" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div style=3D"margin: 0cm 0cm =
0.0001pt; font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93;" =
class=3D""><span lang=3D"EN-US" style=3D"font-size: 10.5pt; font-family: =
Calibri, sans-serif; color: rgb(31, 73, 125);" class=3D"">Thanks,<o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0cm 0cm 0.0001pt; =
font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93;" class=3D""><span =
lang=3D"EN-US" style=3D"font-size: 10.5pt; font-family: Calibri, =
sans-serif; color: rgb(31, 73, 125);" class=3D"">Jianjie<o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0cm 0cm 0.0001pt; =
font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93;" class=3D""><span =
lang=3D"EN-US" style=3D"font-size: 10.5pt; font-family: Calibri, =
sans-serif; color: rgb(31, 73, 125);" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div style=3D"border-style: none =
none none solid; border-left-color: blue; border-left-width: 1.5pt; =
padding: 0cm 0cm 0cm 4pt;" class=3D""><div class=3D""><div =
style=3D"border-style: solid none none; border-top-color: rgb(181, 196, =
223); border-top-width: 1pt; padding: 3pt 0cm 0cm;" class=3D""><div =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: =
=E5=AE=8B=E4=BD=93;" class=3D""><b class=3D""><span style=3D"font-size: =
10pt;" class=3D"">=E5=8F=91=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US" =
class=3D"">:</span></span></b><span lang=3D"EN-US" style=3D"font-size: =
10pt;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>Gunter Van De Velde [<a =
href=3D"mailto:guntervandeveldecc@icloud.com" =
class=3D"">mailto:guntervandeveldecc@icloud.com</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span><br class=3D""></span><b =
class=3D""><span style=3D"font-size: 10pt;" class=3D"">=E5=8F=91=E9=80=81=E6=
=97=B6=E9=97=B4<span lang=3D"EN-US" class=3D"">:</span></span></b><span =
lang=3D"EN-US" style=3D"font-size: 10pt;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>2015</span><span =
style=3D"font-size: 10pt;" class=3D"">=E5=B9=B4<span lang=3D"EN-US" =
class=3D"">10</span>=E6=9C=88<span lang=3D"EN-US" =
class=3D"">19</span>=E6=97=A5<span lang=3D"EN-US" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>15:32<br class=3D""></span><b=
 class=3D"">=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US" =
class=3D"">:</span></b><span lang=3D"EN-US" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>Youjianjie<br =
class=3D""></span><b class=3D"">=E6=8A=84=E9=80=81<span lang=3D"EN-US" =
class=3D"">:</span></b><span lang=3D"EN-US" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:idr@ietf.org" class=3D"">idr@ietf.org</a><br =
class=3D""></span><b class=3D"">=E4=B8=BB=E9=A2=98<span lang=3D"EN-US" =
class=3D"">:</span></b><span lang=3D"EN-US" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>Re: [Idr] New Version =
Notification for draft-liang-idr-bgp-flowspec-time-00.txt<o:p =
class=3D""></o:p></span></span></div></div></div><div style=3D"margin: =
0cm 0cm 0.0001pt; font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93;" =
class=3D""><span lang=3D"EN-US" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div class=3D""><div style=3D"margin: =
0cm 0cm 0.0001pt; font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93;" =
class=3D""><span lang=3D"EN-US" class=3D"">Hi Youjianjie,<o:p =
class=3D""></o:p></span></div></div><div class=3D""><div style=3D"margin: =
0cm 0cm 0.0001pt; font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93;" =
class=3D""><span lang=3D"EN-US" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div></div><div class=3D""><div =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: =
=E5=AE=8B=E4=BD=93;" class=3D""><span lang=3D"EN-US" class=3D"">I would =
expect a flow spec rule to be valid for consumption from the moment its =
originated from a flow spec controller until it is withdrawn by the =
controller.&nbsp;In the text proposed you relate to different forwarding =
delays for a router to receive the flow spec rule and hence justifies a =
need for new community to specify 'valid-time' for the flow spec route. =
This seems as a pretty light reason for such a complex proposed logical =
machine.<o:p class=3D""></o:p></span></div></div><div class=3D""><div =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: =
=E5=AE=8B=E4=BD=93;" class=3D""><span lang=3D"EN-US" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div></div><div class=3D""><div =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: =
=E5=AE=8B=E4=BD=93;" class=3D""><span lang=3D"EN-US" class=3D"">Be =
well,<o:p class=3D""></o:p></span></div></div><div class=3D""><div =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: =
=E5=AE=8B=E4=BD=93;" class=3D""><span lang=3D"EN-US" class=3D"">G/<o:p =
class=3D""></o:p></span></div></div><div class=3D""><pre style=3D"margin: =
0cm 0cm 0.0001pt; font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93; =
white-space: pre-wrap; word-wrap: break-word;" class=3D""><span =
lang=3D"EN-US" style=3D"font-size: 11.5pt; font-family: Helvetica, =
sans-serif;" class=3D"">Sent from iCloud<o:p =
class=3D""></o:p></span></pre></div><div class=3D""><p class=3D"MsoNormal"=
 style=3D"margin: 0cm 0cm 12pt; font-size: 12pt; font-family: =
=E5=AE=8B=E4=BD=93;"><span lang=3D"EN-US" class=3D""><br class=3D"">On =
Oct 19, 2015, at 04:08 AM, Youjianjie &lt;<a =
href=3D"mailto:youjianjie@huawei.com" style=3D"color: purple; =
text-decoration: underline;" class=3D"">youjianjie@huawei.com</a>&gt; =
wrote:<o:p class=3D""></o:p></span></p></div><div class=3D""><blockquote =
style=3D"margin-top: 5pt; margin-bottom: 5pt;" class=3D""><div =
class=3D""><div class=3D""><div style=3D"margin: 0cm 0cm 0.0001pt; =
font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93;" class=3D""><span =
class=3D"body-text-content"><span lang=3D"EN-US" class=3D"">Dear =
all,</span></span><span lang=3D"EN-US" class=3D""><br class=3D""><br =
class=3D""><span class=3D"body-text-content">This document proposes a =
new BGP path attribute called "Flow Extended Attribute", which carries =
expected valid period information for a FlowSpec rule.</span><br =
class=3D""><span class=3D"body-text-content">Could you please review? =
Your comments are welcome.</span><br class=3D""><br class=3D""><span =
class=3D"body-text-content">Thanks,</span><br class=3D""><span =
class=3D"body-text-content">Jianjie</span><br class=3D""><br =
class=3D""><span class=3D"body-text-content">-----</span></span><span =
class=3D"body-text-content">=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6<span =
lang=3D"EN-US" class=3D"">-----</span></span><span lang=3D"EN-US" =
class=3D""><br class=3D""></span><span =
class=3D"body-text-content">=E5=8F=91=E4=BB=B6=E4=BA=BA<span =
lang=3D"EN-US" class=3D"">:<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:internet-drafts@ietf.org" style=3D"color: purple; =
text-decoration: underline;" class=3D"">internet-drafts@ietf.org</a><span =
class=3D"Apple-converted-space">&nbsp;</span>[<a =
href=3D"mailto:internet-drafts@ietf.org" style=3D"color: purple; =
text-decoration: underline;" =
class=3D"">mailto:internet-drafts@ietf.org</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span></span></span><span =
lang=3D"EN-US" class=3D""><br class=3D""></span><span =
class=3D"body-text-content">=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span =
lang=3D"EN-US" class=3D"">: 2015</span>=E5=B9=B4<span lang=3D"EN-US" =
class=3D"">10</span>=E6=9C=88<span lang=3D"EN-US" =
class=3D"">19</span>=E6=97=A5<span lang=3D"EN-US" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>9:58</span></span><span =
lang=3D"EN-US" class=3D""><br class=3D""></span><span =
class=3D"body-text-content">=E6=94=B6=E4=BB=B6=E4=BA=BA<span =
lang=3D"EN-US" class=3D"">: Liangqiandeng; Zhuangshunwan; Youjianjie; =
Zhuangshunwan; Youjianjie; Liangqiandeng</span></span><span lang=3D"EN-US"=
 class=3D""><br class=3D""></span><span =
class=3D"body-text-content">=E4=B8=BB=E9=A2=98<span lang=3D"EN-US" =
class=3D"">: New Version Notification for =
draft-liang-idr-bgp-flowspec-time-00.txt</span></span><span lang=3D"EN-US"=
 class=3D""><br class=3D""><br class=3D""><br class=3D""><span =
class=3D"body-text-content">A new version of I-D, =
draft-liang-idr-bgp-flowspec-time-00.txt</span><br class=3D""><span =
class=3D"body-text-content">has been successfully submitted by Jianjie =
You and posted to the IETF repository.</span><br class=3D""><br =
class=3D""><span class=3D"body-text-content">Name: &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp;draft-liang-idr-bgp-flowspec-time</span><br class=3D""><span =
class=3D"body-text-content">Revision: &nbsp; &nbsp;00</span><br =
class=3D""><span class=3D"body-text-content">Title: &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;BGP FlowSpec with Time =
Constraints</span><br class=3D""><span =
class=3D"body-text-content">Document date: &nbsp; &nbsp; &nbsp; =
&nbsp;2015-10-18</span><br class=3D""><span =
class=3D"body-text-content">Group: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp;Individual Submission</span><br class=3D""><span =
class=3D"body-text-content">Pages: &nbsp; &nbsp; &nbsp;9</span><br =
class=3D""><span class=3D"body-text-content">URL:<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"https://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowspec-=
time-00.txt" style=3D"color: purple; text-decoration: underline;" =
class=3D"">https://www.ietf.org/internet-drafts/draft-liang-idr-bgp-flowsp=
ec-time-00.txt</a></span><br class=3D""><span =
class=3D"body-text-content">Status:<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"https://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time=
/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">https://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-t=
ime/</a></span><br class=3D""><span =
class=3D"body-text-content">Htmlized:<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"https://tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-00" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">https://tools.ietf.org/html/draft-liang-idr-bgp-flowspec-time-0=
0</a></span><br class=3D""><br class=3D""><br class=3D""><span =
class=3D"body-text-content">Abstract:</span><br class=3D""><span =
class=3D"body-text-content">The BGP flow specification (FlowSpec) is an =
additional tool to</span><br class=3D""><span =
class=3D"body-text-content">mitigate the effects of Distributed Denial =
of Service (DDoS) attacks.</span><br class=3D""><span =
class=3D"body-text-content">Since DDoS attacks are dynamic, filtering of =
a flow may only be</span><br class=3D""><span =
class=3D"body-text-content">necessary for some specified time, and be =
undesirable at other times.</span><br class=3D""><span =
class=3D"body-text-content">This document proposes a new BGP path =
attribute called "Flow Extended</span><br class=3D""><span =
class=3D"body-text-content">Attribute", which carries expected valid =
period information for a</span><br class=3D""><span =
class=3D"body-text-content">FlowSpec rule. So network administrators can =
control certain types</span><br class=3D""><span =
class=3D"body-text-content">of traffic in a specified period.</span><br =
class=3D""><br class=3D""><br class=3D""><br class=3D""><br class=3D""><br=
 class=3D""><span class=3D"body-text-content">Please note that it may =
take a couple of minutes from the time of submission until the htmlized =
version and diff are available at <a href=3D"http://tools.ietf.org" =
class=3D"">tools.ietf.org</a>.</span><br class=3D""><br class=3D""><span =
class=3D"body-text-content">The IETF Secretariat</span><br class=3D""><br =
class=3D""><span =
class=3D"body-text-content">______________________________________________=
_</span><br class=3D""><span class=3D"body-text-content">Idr mailing =
list</span><br class=3D""><span class=3D"body-text-content"><a =
href=3D"mailto:Idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">Idr@ietf.org</a></span><br class=3D""><span =
class=3D"body-text-content"><a =
href=3D"https://www.ietf.org/mailman/listinfo/idr" style=3D"color: =
purple; text-decoration: underline;" =
class=3D"">https://www.ietf.org/mailman/listinfo/idr</a></span></span></di=
v></div></div></blockquote></div></div></div></div></blockquote></div><br =
class=3D""></body></html>=

--Apple-Mail=_82C822EA-2E79-4500-BB16-B93F7F5819F8--


From nobody Fri Oct 23 00:48:49 2015
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From: Youjianjie <youjianjie@huawei.com>
To: Jeffrey Haas <jhaas@pfrc.org>
Thread-Topic: [Idr] Fwd: New Version Notification for draft-liang-idr-bgp-flowspec-time-00.txt
Thread-Index: AQHRChGgxqAXHE5ijUa50tGg9c/2Xp5yETIggACrjoCABfdVEA==
Date: Fri, 23 Oct 2015 07:48:31 +0000
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References: <F6C28B32DA084644BB6C8D0BD65B669D1F8421@nkgeml509-mbs.china.huawei.com> <20151019201947.GL15569@pfrc.org>
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From: Youjianjie <youjianjie@huawei.com>
To: Gunter Van De Velde <guntervandeveldecc@icloud.com>
Thread-Topic: [Idr] New Version Notification for draft-liang-idr-bgp-flowspec-time-00.txt
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Date: Fri, 23 Oct 2015 09:15:23 +0000
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IDR interim October 26, 2015 

10:00 - 11:30am ET  

 

Agenda

 

1. Chair's slides [10:00-10:05]

 

1. draft-litkowski-idr-flowspec-interfaceset-01.txt

   speaker: Stephane Litowski  

   Time: 10:05-10:15

   

2. draft-hao-idr-flowspec-redirect-tunnel-00

   Speaker: Weiguo Hao/Lucy Yong

   Time: 10:15 - 10:25 

   

3. draft-vandevelde-idr-flowspec-path-redirect

   Speaker: Guner Van De Velde

   Time: 10:25- 10:35

   

   

4. Draft Name: draft-hao-idr-flowspec-nvo3-01 

   Speaker: Weiguo Hao

   Duration: 10:35-10:45 

 

5. draft-liang-idr-bgp-flowspec-label-01.txt.

   Speaker: 10:45-10:55 

 

6. Draft Name: draft-li-idr-mpls-path-programming-02

   Speaker: Zhenbin Li

   Duration: 10:55-11:05 

 

7. Draft Name: draft-li-idr-flowspec-rpd-01

   Speaker: Shunwan Zhuang

   Duration: 11:05 - 11:15 

   

8.  Discussion of Flowspec drafts

    11:15 - 11:30am 

 

 Meeting Web-ex information 

 Monday, October 26, 2015 

10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs 

 

webex infor: 

https://ietf.webex.com/ietf/j.php?MTID=mae6cf241d3adf214033e599c3ff3143f

 

Meeting number:            644 964 970 

Meeting password:         flow.in.nets

 

 

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<html xmlns:v=3D"urn:schemas-microsoft-com:vml" =
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<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>IDR =
interim October 26, 2015 <o:p></o:p></p><p class=3DMsoNormal>10:00 - =
11:30am ET &nbsp;<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Agenda<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>1. Chair's =
slides [10:00-10:05]<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>1. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; speaker: Stephane Litowski&nbsp; =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Time: =
10:05-10:15<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; =
<o:p></o:p></p><p class=3DMsoNormal>2. =
draft-hao-idr-flowspec-redirect-tunnel-00<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Weiguo Hao/Lucy =
Yong<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; Time: 10:15 - 10:25 =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>3. =
draft-vandevelde-idr-flowspec-path-redirect<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Guner Van De =
Velde<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; Time: 10:25- =
10:35<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>4. Draft Name: draft-hao-idr-flowspec-nvo3-01 =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Speaker: Weiguo =
Hao<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; Duration: =
10:35-10:45 <o:p></o:p></p><p class=3DMsoNormal>&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>5. =
draft-liang-idr-bgp-flowspec-label-01.txt.<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: 10:45-10:55 <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>6. Draft =
Name: draft-li-idr-mpls-path-programming-02<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Zhenbin Li<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Duration: 10:55-11:05 <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>7. Draft =
Name: draft-li-idr-flowspec-rpd-01<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Shunwan Zhuang<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Duration: 11:05 - 11:15 <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>8.&nbsp; Discussion of Flowspec =
drafts<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp; 11:15 - =
11:30am <o:p></o:p></p><p class=3DMsoNormal>&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;Meeting Web-ex information <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;Monday, October 26, 2015 <o:p></o:p></p><p =
class=3DMsoNormal>10:00 am&nbsp; |&nbsp; Eastern Daylight Time (New =
York, GMT-04:00)&nbsp; |&nbsp; 2 hrs <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>webex infor: =
<o:p></o:p></p><p =
class=3DMsoNormal>https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf=
214033e599c3ff3143f<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Meeting =
number: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 =
964 970 <o:p></o:p></p><p class=3DMsoNormal>Meeting =
password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
flow.in.nets<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Join by =
phone<o:p></o:p></p><p class=3DMsoNormal>1-877-668-4493 Call-in toll =
free number (US/Canada)<o:p></o:p></p><p =
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(US/Canada)<o:p></o:p></p><p class=3DMsoNormal>Access code: 644 964 =
970<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal> <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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Subject: [Idr] Agenda for IETF94 - Please
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Below is the agenda for the IDR meeting at IETF 94.   If you requested a
time slot, and I did not include it in the agenda - please drop me a note.
We have a few extra time slots - so I'm concerned I missed someone. 

 

Sue Hares 

 

 

==============

IDR Meeting IETF 94  13:00-15:00 Monday 11/2/2015 

 

1) Chair's slides  [13:00-13:10]

2) draft-keyupate-idr-bgp-attribute-announcement.txt

   presenter: Keyur Patel 

   time: 13:10-13:20 

 

Flowspec Drafts: 

3. draft-litkowski-idr-flowspec-interfaceset-01.txt

   speaker: Stephane Litowski  

   Time: 10:05-10:15

 

4.  draft-liang-idr-bgp-flowspec-label-01.txt.

   presenter: Jianjie You 

   time: 13:20 - 13:30 

   

5. Draft Name: draft-hao-idr-flowspec-nvo3-01 

   Speaker: Weiguo Hao

   Duration: 13:30 - 13:40 

 

6. Draft Name: draft-hao-idr-flowspec-redirect-tunnel-00

   Speaker: Weiguo Hao/Lucy Yong

   Duration: 13:40-13:50 

 

7. Draft Name: draft-li-idr-mpls-path-programming-02

   Speaker: Zhenbin Li

   Duration: 13:50 - 14:00 

 

8. Draft Name: draft-li-idr-flowspec-rpd-01

   Speaker: Shunwan Zhuang

   Duration: 14:00 - 14:10 

 

9.  draft-vandevelde-idr-flowspec-path-redirect

    Speaker: Guner Van De Velde

    Time: 14:10 - 14:20 

 

10. draft-litkowski-idr-flowspec-interfaceset-01.txt

   speaker: Stephane Litowski  

   Time: 14:20 - 14:40 

   

 

Open Time (for other proposals)

   Time: 14:40 - 15:00 

 


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>Below is =
the agenda for the IDR meeting at IETF 94.&nbsp;&nbsp; If you requested =
a time slot, and I did not include it in the agenda &#8211; please drop =
me a note. &nbsp;We have a few extra time slots &#8211; so I&#8217;m =
concerned I missed someone. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sue Hares =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<o:p></o:p></=
p><p class=3DMsoNormal>IDR Meeting IETF 94&nbsp; 13:00-15:00 Monday =
11/2/2015 <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>1) Chair's slides&nbsp; [13:00-13:10]<o:p></o:p></p><p =
class=3DMsoNormal> <o:p></o:p></p><p class=3DMsoNormal>2) =
draft-keyupate-idr-bgp-attribute-announcement.txt<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; presenter: Keyur Patel <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;time: 13:10-13:20 <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Flowspec =
Drafts: <o:p></o:p></p><p class=3DMsoNormal>3. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; speaker: Stephane Litowski&nbsp; =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Time: =
10:05-10:15<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>4.&nbsp; =
draft-liang-idr-bgp-flowspec-label-01.txt.<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; presenter: Jianjie You <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;time: 13:20 - 13:30 =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>5. Draft Name: draft-hao-idr-flowspec-nvo3-01 =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Speaker: Weiguo =
Hao<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; Duration: 13:30 - =
13:40 <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>6. Draft Name: =
draft-hao-idr-flowspec-redirect-tunnel-00<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Weiguo Hao/Lucy =
Yong<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; Duration: =
13:40-13:50 <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>7. Draft Name: =
draft-li-idr-mpls-path-programming-02<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Zhenbin Li<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Duration: 13:50 - 14:00 <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>8. Draft =
Name: draft-li-idr-flowspec-rpd-01<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Shunwan Zhuang<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Duration: 14:00 - 14:10 <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p><p class=3DMsoNormal>9.&nbsp; =
draft-vandevelde-idr-flowspec-path-redirect<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp; Speaker: Guner Van De =
Velde<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp; Time: 14:10 =
- 14:20 <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>10. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; speaker: Stephane Litowski&nbsp; =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Time: 14:20 - =
14:40 <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p><p class=3DMsoNormal>Open Time =
(for other proposals)<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; =
Time: 14:40 - 15:00 <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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Subject: Re: [Idr] Agenda for IETF94 - Revised agenda
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------=_NextPart_000_0366_01D10DB6.28ACB070
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Content-Transfer-Encoding: 7bit

 

IDR Meeting IETF 94  13:00-15:00 Monday 11/2/2015 

 

 

1) Chair's slides  [13:00-13:10]

2) draft-keyupate-idr-bgp-attribute-announcement.txt

   presenter: Keyur Patel 

   time: 13:10-13:20 

   

3) draft-wu-idr-bgp-segment-allocation-ext-00

https://datatracker.ietf.org/doc/draft-wu-idr-bgp-segment-allocation-ext/

  presenter: Shunwan Zhuang

  time: 13:20 - 13:30 

 

Flowspec Drafts: 

3. draft-litkowski-idr-flowspec-interfaceset-01.txt

   speaker: Stephane Litowski  

   Time: 13:30-13:40  

 

4.  draft-liang-idr-bgp-flowspec-label-01.txt.

   presenter: Jianjie You 

   time: 13:40-13:50 

   

5. Draft Name: draft-hao-idr-flowspec-nvo3-01 

   Speaker: Weiguo Hao

   Duration: 13:50-14:00  

 

6. Draft Name: draft-hao-idr-flowspec-redirect-tunnel-00

   Speaker: Weiguo Hao/Lucy Yong

   Duration: 14:00 -14:10 

 

7. Draft Name: draft-li-idr-mpls-path-programming-02

   Speaker: Zhenbin Li

   Duration: 14:10 - 14:20 

 

8. Draft Name: draft-li-idr-flowspec-rpd-01

   Speaker: Shunwan Zhuang

   Duration: 14:20 - 14:40 

 

9.  draft-vandevelde-idr-flowspec-path-redirect

    Speaker: Gunter Van De Velde

    Time: 14:40 - 14:50  

 

Close 14:50

 

From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Susan Hares
Sent: Friday, October 23, 2015 12:20 PM
To: idr@ietf.org
Cc: 'John G. Scudder'
Subject: [Idr] Agenda for IETF94 - Please

 

Below is the agenda for the IDR meeting at IETF 94.   If you requested a
time slot, and I did not include it in the agenda - please drop me a note.
We have a few extra time slots - so I'm concerned I missed someone. 

 

Sue Hares 

 

 

==============

IDR Meeting IETF 94  13:00-15:00 Monday 11/2/2015 

 

1) Chair's slides  [13:00-13:10]

 

2) draft-keyupate-idr-bgp-attribute-announcement.txt

   presenter: Keyur Patel 

   time: 13:10-13:20 

 

Flowspec Drafts: 

3. draft-litkowski-idr-flowspec-interfaceset-01.txt

   speaker: Stephane Litowski  

   Time: 10:05-10:15

 

4.  draft-liang-idr-bgp-flowspec-label-01.txt.

   presenter: Jianjie You 

   time: 13:20 - 13:30 

   

5. Draft Name: draft-hao-idr-flowspec-nvo3-01 

   Speaker: Weiguo Hao

   Duration: 13:30 - 13:40 

 

6. Draft Name: draft-hao-idr-flowspec-redirect-tunnel-00

   Speaker: Weiguo Hao/Lucy Yong

   Duration: 13:40-13:50 

 

7. Draft Name: draft-li-idr-mpls-path-programming-02

   Speaker: Zhenbin Li

   Duration: 13:50 - 14:00 

 

8. Draft Name: draft-li-idr-flowspec-rpd-01

   Speaker: Shunwan Zhuang

   Duration: 14:00 - 14:10 

 

9.  draft-vandevelde-idr-flowspec-path-redirect

    Speaker: Guner Van De Velde

    Time: 14:10 - 14:20 

 

10. draft-litkowski-idr-flowspec-interfaceset-01.txt

   speaker: Stephane Litowski  

   Time: 14:20 - 14:40 

   

 

Open Time (for other proposals)

   Time: 14:40 - 15:00 

 


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>IDR Meeting IETF =
94&nbsp; 13:00-15:00 Monday 11/2/2015 <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>1) Chair's slides&nbsp; =
[13:00-13:10]<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'> <o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>2) =
draft-keyupate-idr-bgp-attribute-announcement.txt<o:p></o:p></span></p><p=
 class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; presenter: =
Keyur Patel <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;time: 13:10-13:20 =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>3) =
draft-wu-idr-bgp-segment-allocation-ext-00<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>https://datatracker.ietf.org/doc/draft-wu-idr-bgp=
-segment-allocation-ext/<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp; presenter: Shunwan =
Zhuang<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp; time: 13:20 - 13:30 =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Flowspec Drafts: =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>3. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; speaker: =
Stephane Litowski&nbsp; <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;Time: 13:30-13:40&nbsp; =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>4.&nbsp; =
draft-liang-idr-bgp-flowspec-label-01.txt.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; presenter: =
Jianjie You <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;time: 13:40-13:50 =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>5. Draft Name: =
draft-hao-idr-flowspec-nvo3-01 <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;Speaker: Weiguo =
Hao<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; Duration: 13:50-14:00&nbsp; =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>6. Draft Name: =
draft-hao-idr-flowspec-redirect-tunnel-00<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; Speaker: =
Weiguo Hao/Lucy Yong<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; Duration: 14:00 -14:10 =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>7. Draft Name: =
draft-li-idr-mpls-path-programming-02<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; Speaker: =
Zhenbin Li<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; Duration: 14:10 - 14:20 =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>8. Draft Name: =
draft-li-idr-flowspec-rpd-01<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; Speaker: =
Shunwan Zhuang<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; Duration: 14:20 - 14:40 =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>9.&nbsp; =
draft-vandevelde-idr-flowspec-path-redirect<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp; =
&nbsp;&nbsp;Speaker: Gunter Van De Velde<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp; Time: =
14:40 - 14:50&nbsp; <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'> Close =
14:50<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Idr [mailto:idr-bounces@ietf.org] <b>On Behalf Of </b>Susan =
Hares<br><b>Sent:</b> Friday, October 23, 2015 12:20 PM<br><b>To:</b> =
idr@ietf.org<br><b>Cc:</b> 'John G. Scudder'<br><b>Subject:</b> [Idr] =
Agenda for IETF94 - Please<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Below is the =
agenda for the IDR meeting at IETF 94.&nbsp;&nbsp; If you requested a =
time slot, and I did not include it in the agenda &#8211; please drop me =
a note. &nbsp;We have a few extra time slots &#8211; so I&#8217;m =
concerned I missed someone. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sue Hares =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<o:p></o:p></=
p><p class=3DMsoNormal>IDR Meeting IETF 94&nbsp; 13:00-15:00 Monday =
11/2/2015 <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>1) Chair's slides&nbsp; [13:00-13:10]<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>2) =
draft-keyupate-idr-bgp-attribute-announcement.txt<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; presenter: Keyur Patel <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;time: 13:10-13:20 <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Flowspec =
Drafts: <o:p></o:p></p><p class=3DMsoNormal>3. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; speaker: Stephane Litowski&nbsp; =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Time: =
10:05-10:15<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>4.&nbsp; =
draft-liang-idr-bgp-flowspec-label-01.txt.<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; presenter: Jianjie You <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;time: 13:20 - 13:30 =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>5. Draft Name: draft-hao-idr-flowspec-nvo3-01 =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Speaker: Weiguo =
Hao<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; Duration: 13:30 - =
13:40 <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>6. Draft Name: =
draft-hao-idr-flowspec-redirect-tunnel-00<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Weiguo Hao/Lucy =
Yong<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; Duration: =
13:40-13:50 <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>7. Draft Name: =
draft-li-idr-mpls-path-programming-02<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Zhenbin Li<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Duration: 13:50 - 14:00 <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>8. Draft =
Name: draft-li-idr-flowspec-rpd-01<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Shunwan Zhuang<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Duration: 14:00 - 14:10 <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p><p class=3DMsoNormal>9.&nbsp; =
draft-vandevelde-idr-flowspec-path-redirect<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp; Speaker: Guner Van De =
Velde<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp; Time: 14:10 =
- 14:20 <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>10. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; speaker: Stephane Litowski&nbsp; =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Time: 14:20 - =
14:40 <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p><p class=3DMsoNormal>Open Time =
(for other proposals)<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; =
Time: 14:40 - 15:00 <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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IDR WG members: 

 

Below is an updated agenda for the IDR interim on 10/26/2015.

 

Sue 

 

------------

IDR interim October 26, 2015 

10:00 - 11:30am 

 

1. Chair's slides [10:00-10:05]

 

1. draft-litkowski-idr-flowspec-interfaceset-01.txt

   speaker: Stephane Litowski  

   Time: 10:05-10:15

 
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/

   

2. draft-hao-idr-flowspec-redirect-tunnel-00

   Speaker: Weiguo Hao

   Time: 10:15 - 10:25 

   http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/

   

   

3. draft-vandevelde-idr-flowspec-path-redirect

   Speaker: Gunter Van De Velde

   Time: 10:25- 10:35

 
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect/

   

   

4. Draft Name: draft-hao-idr-flowspec-nvo3-02 

   Speaker: Weiguo Hao

   Duration: 10:35-10:40 

   http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/

   

 

5. draft-liang-idr-bgp-flowspec-label-01.txt.

   Speaker: 

   Duration: 10:40-10:45 

  http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/

   

6. draft-liang-idr-bgp-flowspec-time

   presenter: Jianjie You

   time: 10:45-10:55

   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/

 

7. Draft Name: draft-li-idr-mpls-path-programming-02

   Speaker: Zhenbin Li

   Duration: 10:55-11:05 

   http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/

 

7. Draft Name: draft-li-idr-flowspec-rpd-01

   Speaker: Shunwan Zhuang

   Duration: 11:05 - 11:15 

   http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/

   

8.  Discussion of Flowspec drafts

    11:15 - 11:30am 

 

 Meeting Web-ex information 

 Monday, October 26, 2015 

10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs 

 

webex infor: 

https://ietf.webex.com/ietf/j.php?MTID=mae6cf241d3adf214033e599c3ff3143f

 

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Meeting password:         flow.in.nets

 

 

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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>IDR WG =
members: <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Below is an updated agenda for the IDR interim on =
10/26/2015.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Sue <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>------------<o:p></o:p></p><p class=3DMsoNormal>IDR =
interim October 26, 2015 <o:p></o:p></p><p class=3DMsoNormal>10:00 - =
11:30am <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>1. Chair's slides [10:00-10:05]<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>1. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; speaker: Stephane Litowski&nbsp; =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Time: =
10:05-10:15<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; =
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; <o:p></o:p></p><p =
class=3DMsoNormal>2. =
draft-hao-idr-flowspec-redirect-tunnel-00<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Weiguo Hao<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Time: 10:15 - 10:25 <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;http://datatracker.ietf.org/doc/draft=
-hao-idr-flowspec-redirect-tunnel/<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>3. =
draft-vandevelde-idr-flowspec-path-redirect<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Gunter Van De =
Velde<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; Time: 10:25- =
10:35<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; =
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>4. Draft Name: draft-hao-idr-flowspec-nvo3-02 =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Speaker: Weiguo =
Hao<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; Duration: =
10:35-10:40 <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;http://datatracker.ietf.org/doc/draft=
-hao-idr-flowspec-nvo3/<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>5. =
draft-liang-idr-bgp-flowspec-label-01.txt.<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Duration: 10:40-10:45 =
<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;http://datatracker.ietf.org/doc/draft-liang=
-idr-bgp-flowspec-label/<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; =
<o:p></o:p></p><p class=3DMsoNormal>6. =
draft-liang-idr-bgp-flowspec-time<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; presenter: Jianjie You<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; time: 10:45-10:55<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; =
http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/<o:p></=
o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>7. Draft Name: =
draft-li-idr-mpls-path-programming-02<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Zhenbin Li<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Duration: 10:55-11:05 <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;http://datatracker.ietf.org/doc/draft=
-li-idr-mpls-path-programming/<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>7. Draft =
Name: draft-li-idr-flowspec-rpd-01<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Shunwan Zhuang<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp; Duration: 11:05 - 11:15 <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;http://datatracker.ietf.org/doc/draft=
-li-idr-flowspec-rpd/<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp; =
<o:p></o:p></p><p class=3DMsoNormal>8.&nbsp; Discussion of Flowspec =
drafts<o:p></o:p></p><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp; 11:15 - =
11:30am <o:p></o:p></p><p class=3DMsoNormal>&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;Meeting Web-ex information <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;Monday, October 26, 2015 <o:p></o:p></p><p =
class=3DMsoNormal>10:00 am&nbsp; |&nbsp; Eastern Daylight Time (New =
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To: Susan Hares <shares@ndzh.com>
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Subject: Re: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET update
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Sue,

The interim shows as scheduled for the PM rather than AM time slot:

https://www.ietf.org/meeting/interim/idr-2015-10-26.txt


On Sun, Oct 25, 2015 at 10:06:36AM -0400, Susan Hares wrote:
> IDR WG members: 
> 
>  
> 
> Below is an updated agenda for the IDR interim on 10/26/2015.
> 
>  
> 
> Sue 
> 
>  
> 
> ------------
> 
> IDR interim October 26, 2015 
> 
> 10:00 - 11:30am 
> 
>  
> 
> 1. Chair's slides [10:00-10:05]
> 
>  
> 
> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
> 
>    speaker: Stephane Litowski  
> 
>    Time: 10:05-10:15
> 
>  
> https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/
> 
>    
> 
> 2. draft-hao-idr-flowspec-redirect-tunnel-00
> 
>    Speaker: Weiguo Hao
> 
>    Time: 10:15 - 10:25 
> 
>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/
> 
>    
> 
>    
> 
> 3. draft-vandevelde-idr-flowspec-path-redirect
> 
>    Speaker: Gunter Van De Velde
> 
>    Time: 10:25- 10:35
> 
>  
> http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect/
> 
>    
> 
>    
> 
> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02 
> 
>    Speaker: Weiguo Hao
> 
>    Duration: 10:35-10:40 
> 
>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/
> 
>    
> 
>  
> 
> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
> 
>    Speaker: 
> 
>    Duration: 10:40-10:45 
> 
>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/
> 
>    
> 
> 6. draft-liang-idr-bgp-flowspec-time
> 
>    presenter: Jianjie You
> 
>    time: 10:45-10:55
> 
>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/
> 
>  
> 
> 7. Draft Name: draft-li-idr-mpls-path-programming-02
> 
>    Speaker: Zhenbin Li
> 
>    Duration: 10:55-11:05 
> 
>    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/
> 
>  
> 
> 7. Draft Name: draft-li-idr-flowspec-rpd-01
> 
>    Speaker: Shunwan Zhuang
> 
>    Duration: 11:05 - 11:15 
> 
>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/
> 
>    
> 
> 8.  Discussion of Flowspec drafts
> 
>     11:15 - 11:30am 
> 
>  
> 
>  Meeting Web-ex information 
> 
>  Monday, October 26, 2015 
> 
> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs 
> 
>  
> 
> webex infor: 
> 
> https://ietf.webex.com/ietf/j.php?MTID=mae6cf241d3adf214033e599c3ff3143f
> 
>  
> 
> Meeting number:            644 964 970 
> 
> Meeting password:         flow.in.nets
> 
>  
> 
>  
> 
> Join by phone
> 
> 1-877-668-4493 Call-in toll free number (US/Canada)
> 
> 1-650-479-3208 Call-in toll number (US/Canada)
> 
> Access code: 644 964 970
> 
>  
> 
>  
> 

> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr


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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Jeffrey Haas <jhaas@pfrc.org>, Susan Hares <shares@ndzh.com>
Thread-Topic: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET update
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References: <009b01d10f2e$5cc28820$16479860$@ndzh.com> <20151025151334.GA15422@pfrc.org>
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From nobody Sun Oct 25 13:18:16 2015
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From: "Susan Hares" <shares@ndzh.com>
To: "'Jeffrey Haas'" <jhaas@pfrc.org>
References: <009b01d10f2e$5cc28820$16479860$@ndzh.com> <20151025151334.GA15422@pfrc.org>
In-Reply-To: <20151025151334.GA15422@pfrc.org>
Date: Sun, 25 Oct 2015 16:18:05 -0400
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Subject: Re: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET update
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Jeff: 

It should be listed on the interim page correctly. 

Sue 

-----Original Message-----
From: Jeffrey Haas [mailto:jhaas@pfrc.org] 
Sent: Sunday, October 25, 2015 11:14 AM
To: Susan Hares
Cc: idr@ietf.org; jgs@bgp.nu
Subject: Re: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET update

Sue,

The interim shows as scheduled for the PM rather than AM time slot:

https://www.ietf.org/meeting/interim/idr-2015-10-26.txt


On Sun, Oct 25, 2015 at 10:06:36AM -0400, Susan Hares wrote:
> IDR WG members: 
> 
>  
> 
> Below is an updated agenda for the IDR interim on 10/26/2015.
> 
>  
> 
> Sue 
> 
>  
> 
> ------------
> 
> IDR interim October 26, 2015 
> 
> 10:00 - 11:30am 
> 
>  
> 
> 1. Chair's slides [10:00-10:05]
> 
>  
> 
> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
> 
>    speaker: Stephane Litowski  
> 
>    Time: 10:05-10:15
> 
>  
>
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/
> 
>    
> 
> 2. draft-hao-idr-flowspec-redirect-tunnel-00
> 
>    Speaker: Weiguo Hao
> 
>    Time: 10:15 - 10:25 
> 
>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/
> 
>    
> 
>    
> 
> 3. draft-vandevelde-idr-flowspec-path-redirect
> 
>    Speaker: Gunter Van De Velde
> 
>    Time: 10:25- 10:35
> 
>  
>
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect/
> 
>    
> 
>    
> 
> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02 
> 
>    Speaker: Weiguo Hao
> 
>    Duration: 10:35-10:40 
> 
>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/
> 
>    
> 
>  
> 
> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
> 
>    Speaker: 
> 
>    Duration: 10:40-10:45 
> 
>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/
> 
>    
> 
> 6. draft-liang-idr-bgp-flowspec-time
> 
>    presenter: Jianjie You
> 
>    time: 10:45-10:55
> 
>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/
> 
>  
> 
> 7. Draft Name: draft-li-idr-mpls-path-programming-02
> 
>    Speaker: Zhenbin Li
> 
>    Duration: 10:55-11:05 
> 
>    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/
> 
>  
> 
> 7. Draft Name: draft-li-idr-flowspec-rpd-01
> 
>    Speaker: Shunwan Zhuang
> 
>    Duration: 11:05 - 11:15 
> 
>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/
> 
>    
> 
> 8.  Discussion of Flowspec drafts
> 
>     11:15 - 11:30am 
> 
>  
> 
>  Meeting Web-ex information 
> 
>  Monday, October 26, 2015 
> 
> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs 
> 
>  
> 
> webex infor: 
> 
> https://ietf.webex.com/ietf/j.php?MTID=mae6cf241d3adf214033e599c3ff3143f
> 
>  
> 
> Meeting number:            644 964 970 
> 
> Meeting password:         flow.in.nets
> 
>  
> 
>  
> 
> Join by phone
> 
> 1-877-668-4493 Call-in toll free number (US/Canada)
> 
> 1-650-479-3208 Call-in toll number (US/Canada)
> 
> Access code: 644 964 970
> 
>  
> 
>  
> 

> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr



From nobody Sun Oct 25 16:41:06 2015
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Date: Sun, 25 Oct 2015 19:41:07 -0400
From: Jeffrey Haas <jhaas@pfrc.org>
To: Susan Hares <shares@ndzh.com>
Message-ID: <20151025234107.GA16588@pfrc.org>
References: <009b01d10f2e$5cc28820$16479860$@ndzh.com> <20151025151334.GA15422@pfrc.org> <00e501d10f62$42741310$c75c3930$@ndzh.com>
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Cc: idr@ietf.org, jgs@bgp.nu
Subject: Re: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET update
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Sue, the reason I point this out is this is the contents posted from the
interim page.


On Sun, Oct 25, 2015 at 04:18:05PM -0400, Susan Hares wrote:
> Jeff: 
> 
> It should be listed on the interim page correctly. 
> 
> Sue 
> 
> -----Original Message-----
> From: Jeffrey Haas [mailto:jhaas@pfrc.org] 
> Sent: Sunday, October 25, 2015 11:14 AM
> To: Susan Hares
> Cc: idr@ietf.org; jgs@bgp.nu
> Subject: Re: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET update
> 
> Sue,
> 
> The interim shows as scheduled for the PM rather than AM time slot:
> 
> https://www.ietf.org/meeting/interim/idr-2015-10-26.txt
> 
> 
> On Sun, Oct 25, 2015 at 10:06:36AM -0400, Susan Hares wrote:
> > IDR WG members: 
> > 
> >  
> > 
> > Below is an updated agenda for the IDR interim on 10/26/2015.
> > 
> >  
> > 
> > Sue 
> > 
> >  
> > 
> > ------------
> > 
> > IDR interim October 26, 2015 
> > 
> > 10:00 - 11:30am 
> > 
> >  
> > 
> > 1. Chair's slides [10:00-10:05]
> > 
> >  
> > 
> > 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
> > 
> >    speaker: Stephane Litowski  
> > 
> >    Time: 10:05-10:15
> > 
> >  
> >
> https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/
> > 
> >    
> > 
> > 2. draft-hao-idr-flowspec-redirect-tunnel-00
> > 
> >    Speaker: Weiguo Hao
> > 
> >    Time: 10:15 - 10:25 
> > 
> >    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/
> > 
> >    
> > 
> >    
> > 
> > 3. draft-vandevelde-idr-flowspec-path-redirect
> > 
> >    Speaker: Gunter Van De Velde
> > 
> >    Time: 10:25- 10:35
> > 
> >  
> >
> http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect/
> > 
> >    
> > 
> >    
> > 
> > 4. Draft Name: draft-hao-idr-flowspec-nvo3-02 
> > 
> >    Speaker: Weiguo Hao
> > 
> >    Duration: 10:35-10:40 
> > 
> >    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/
> > 
> >    
> > 
> >  
> > 
> > 5. draft-liang-idr-bgp-flowspec-label-01.txt.
> > 
> >    Speaker: 
> > 
> >    Duration: 10:40-10:45 
> > 
> >   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/
> > 
> >    
> > 
> > 6. draft-liang-idr-bgp-flowspec-time
> > 
> >    presenter: Jianjie You
> > 
> >    time: 10:45-10:55
> > 
> >    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/
> > 
> >  
> > 
> > 7. Draft Name: draft-li-idr-mpls-path-programming-02
> > 
> >    Speaker: Zhenbin Li
> > 
> >    Duration: 10:55-11:05 
> > 
> >    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/
> > 
> >  
> > 
> > 7. Draft Name: draft-li-idr-flowspec-rpd-01
> > 
> >    Speaker: Shunwan Zhuang
> > 
> >    Duration: 11:05 - 11:15 
> > 
> >    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/
> > 
> >    
> > 
> > 8.  Discussion of Flowspec drafts
> > 
> >     11:15 - 11:30am 
> > 
> >  
> > 
> >  Meeting Web-ex information 
> > 
> >  Monday, October 26, 2015 
> > 
> > 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs 
> > 
> >  
> > 
> > webex infor: 
> > 
> > https://ietf.webex.com/ietf/j.php?MTID=mae6cf241d3adf214033e599c3ff3143f
> > 
> >  
> > 
> > Meeting number:            644 964 970 
> > 
> > Meeting password:         flow.in.nets
> > 
> >  
> > 
> >  
> > 
> > Join by phone
> > 
> > 1-877-668-4493 Call-in toll free number (US/Canada)
> > 
> > 1-650-479-3208 Call-in toll number (US/Canada)
> > 
> > Access code: 644 964 970
> > 
> >  
> > 
> >  
> > 
> 
> > _______________________________________________
> > Idr mailing list
> > Idr@ietf.org
> > https://www.ietf.org/mailman/listinfo/idr
> 


From nobody Mon Oct 26 08:51:50 2015
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From: Lizhenbin <lizhenbin@huawei.com>
To: Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Hi Gunter,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Regarding your presentation, I have following comments:<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal t=
unnel setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffi=
c to the tunnel instead of signal tunnel
 setup. <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in=
 the draft make you confused? We just hope to &nbsp;just reuses the attribu=
tes of to specify the tunnel type to help steering
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">the traffic to tunnel. If this is not a good way, maybe we can de=
fine new attributes.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Best Regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Robin<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:=CB=
=CE=CC=E5">=B7=A2=BC=FE=C8=CB<span lang=3D"EN-US">:</span></span></b><span =
lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5"> Idr [ma=
ilto:idr-bounces@ietf.org]
</span><b><span style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5">=B4=FA=
=B1=ED </span></b><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-famil=
y:=CB=CE=CC=E5">Susan Hares<br>
</span><b><span style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5">=B7=A2=
=CB=CD=CA=B1=BC=E4<span lang=3D"EN-US">:</span></span></b><span lang=3D"EN-=
US" style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5"> 2015</span><span s=
tyle=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5">=C4=EA<span lang=3D"EN-U=
S">10</span>=D4=C2<span lang=3D"EN-US">25</span>=C8=D5<span lang=3D"EN-US">
 22:07<br>
</span><b>=CA=D5=BC=FE=C8=CB<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> idr@ietf.org<br>
</span><b>=B3=AD=CB=CD<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> jgs@bgp.nu<br>
</span><b>=D6=F7=CC=E2<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET update<o:p></o:p></sp=
an></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">IDR WG members: <o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Below is an updated agenda for =
the IDR interim on 10/26/2015.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Sue <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">------------<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">IDR interim October 26, 2015 <o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">10:00 - 11:30am <o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">1. Chair's slides [10:00-10:05]=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">1. draft-litkowski-idr-flowspec=
-interfaceset-01.txt<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; speaker: Stephane =
Litowski&nbsp; <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;Time: 10:05-1=
0:15<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; <a href=3D"https:/=
/datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/">
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/=
</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; <o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">2. draft-hao-idr-flowspec-redir=
ect-tunnel-00<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Speaker: Weiguo Ha=
o<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Time: 10:15 - 10:2=
5 <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/">http=
://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/</a><o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; <o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">3. draft-vandevelde-idr-flowspe=
c-path-redirect<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Speaker: Gunter Va=
n De Velde<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Time: 10:25- 10:35=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; <a href=3D"http://=
datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect/">
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect=
/</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; <o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">4. Draft Name: draft-hao-idr-fl=
owspec-nvo3-02
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;Speaker: Weig=
uo Hao<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Duration: 10:35-10=
:40 <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/">http://datatrac=
ker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; <o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">5. draft-liang-idr-bgp-flowspec=
-label-01.txt.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Speaker: <o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;Duration: 10:=
40-10:45 <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;<a href=3D"http://d=
atatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/">http://datatra=
cker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/</a><o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; <o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">6. draft-liang-idr-bgp-flowspec=
-time<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; presenter: Jianjie=
 You<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; time: 10:45-10:55<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; <a href=3D"http://=
datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/">
http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/</a><o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">7. Draft Name: draft-li-idr-mpl=
s-path-programming-02<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Speaker: Zhenbin L=
i<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Duration: 10:55-11=
:05 <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/">http://d=
atatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/</a><o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">7. Draft Name: draft-li-idr-flo=
wspec-rpd-01<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Speaker: Shunwan Z=
huang<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Duration: 11:05 - =
11:15 <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/">http://datatracke=
r.ietf.org/doc/draft-li-idr-flowspec-rpd/</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; <o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">8.&nbsp; Discussion of Flowspec=
 drafts<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp; 11:15 - 11:3=
0am <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;Meeting Web-ex informatio=
n <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;Monday, October 26, 2015 =
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">10:00 am&nbsp; |&nbsp; Eastern =
Daylight Time (New York, GMT-04:00)&nbsp; |&nbsp; 2 hrs
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">webex infor: <o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://ietf.webex.c=
om/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f">https://ietf.webex.=
com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f</a><o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Meeting number: &nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 964 970 <o:p>
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Meeting password:&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; flow.in.nets<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Join by phone<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">1-877-668-4493 Call-in toll fre=
e number (US/Canada)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">1-650-479-3208 Call-in toll num=
ber (US/Canada)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Access code: 644 964 970<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
</body>
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--_000_5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5C638nkgeml506mbxchi_--


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From: Robert Raszuk <robert@raszuk.net>
To: "VAN DE VELDE, Gunter (Gunter)" <gunter.van_de_velde@alcatel-lucent.com>
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Hi Gunter,

Let's observe that BGP signalling is p2mp.

Now let's also notice that as you correctly state TE tunnels are rather
custom crafted p2p entities.

Then natural question comes to mind ...

How good does it serve to signal identical PATH_ID to all head ends for a
given flow while what you need to do is to map it rather uniquely in the
network ?

While in theory one could construct number of mp2p TE forwarding graphs
each with identical PATH_ID on a per flow basis I bet in practice this was
not the application you had in mind as its opex would be rather high as
compared to real practical usefulness :)

Side question ... How are you going to provision mp2p TE ? Are you going to
dust-off some proposals for it from the past ? Example:
https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06

Or was perhaps your plan to provision number of p2p TE tunnels from
PCE/Controller with the identical PATH_IDs ?

Cheers,
R.


On Mon, Oct 26, 2015 at 5:26 PM, VAN DE VELDE, Gunter (Gunter) <
gunter.van_de_velde@alcatel-lucent.com> wrote:

> Hi Robin,
>
> Thanks for your note.
>
> A tunnel is not always going over shortest path. Some tunnels are TE
> tunnels and are deliberately not going over a shortest path. This is
> something that draft-rosen-idr-tunnel-encaps-00 will not help to signal
> because the tunnel-encap attribute indicates tunnel parameters used by th=
e
> tail-end.
>
> If a redirect tunnel represents a particular redirect/steering service
> (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then it=
 does
> become rather complex for BGP as signalling technology because a tunnel
> relationship is a unique between 'a headend' and =E2=80=98a tailed' devic=
e. It
> seems better to leave tunnel-setup to dedicated tunnel-setup mechanisms
> like PCEP, SR, etc=E2=80=A6.
>
> The draft redirect-to-PATH_ID is providing the means to signal a
> flow-based redirect/steering service, and have each recipient router
> identify using local recursion for the PATH_IDs the corresponding
> tunnels/redirect-info. This allows for tunnel setup complexity to be take=
n
> away from BGP, while at the same time BGP is doing what it is very good a=
t
> doing: "It signals a policy=E2=80=9D in reliable fashion.
>
> Kind Regards,
> G/
>
>
>
> From:  Idr <idr-bounces@ietf.org> on behalf of Lizhenbin <
> lizhenbin@huawei.com>
> Date: Monday 26 October 2015 at 16:51
> To: Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
> Cc: "jgs@bgp.nu" <jgs@bgp.nu>
> Subject: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//=E7=
=AD=94=E5=A4=8D:
> IDR interim (10/26/2015) 10:00am - 11:30am ET update
>
> Hi Gunter,
>
> Regarding your presentation, I have following comments:
>
> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel
> setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic to
> the tunnel instead of signal tunnel setup.
>
> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the
> draft make you confused? We just hope to  just reuses the attributes of t=
o
> specify the tunnel type to help steering
>
> the traffic to tunnel. If this is not a good way, maybe we can define new
> attributes.
>
>
>
>
>
> Best Regards,
>
> Robin
>
>
>
>
>
>
>
>
>
>
>
> *=E5=8F=91=E4=BB=B6=E4=BA=BA:* Idr [mailto:idr-bounces@ietf.org <idr-boun=
ces@ietf.org>] *=E4=BB=A3=E8=A1=A8 *Susan
> Hares
> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:* 2015=E5=B9=B410=E6=9C=8825=E6=97=
=A5 22:07
> *=E6=94=B6=E4=BB=B6=E4=BA=BA:* idr@ietf.org
> *=E6=8A=84=E9=80=81:* jgs@bgp.nu
> *=E4=B8=BB=E9=A2=98:* [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET=
 update
>
>
>
> IDR WG members:
>
>
>
> Below is an updated agenda for the IDR interim on 10/26/2015.
>
>
>
> Sue
>
>
>
> ------------
>
> IDR interim October 26, 2015
>
> 10:00 - 11:30am
>
>
>
> 1. Chair's slides [10:00-10:05]
>
>
>
> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>
>    speaker: Stephane Litowski
>
>    Time: 10:05-10:15
>
>
> https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/
>
>
>
> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>
>    Speaker: Weiguo Hao
>
>    Time: 10:15 - 10:25
>
>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel=
/
>
>
>
>
>
> 3. draft-vandevelde-idr-flowspec-path-redirect
>
>    Speaker: Gunter Van De Velde
>
>    Time: 10:25- 10:35
>
>
> http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/
>
>
>
>
>
> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02
>
>    Speaker: Weiguo Hao
>
>    Duration: 10:35-10:40
>
>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/
>
>
>
>
>
> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>
>    Speaker:
>
>    Duration: 10:40-10:45
>
>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/
>
>
>
> 6. draft-liang-idr-bgp-flowspec-time
>
>    presenter: Jianjie You
>
>    time: 10:45-10:55
>
>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/
>
>
>
> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>
>    Speaker: Zhenbin Li
>
>    Duration: 10:55-11:05
>
>    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/
>
>
>
> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>
>    Speaker: Shunwan Zhuang
>
>    Duration: 11:05 - 11:15
>
>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/
>
>
>
> 8.  Discussion of Flowspec drafts
>
>     11:15 - 11:30am
>
>
>
>  Meeting Web-ex information
>
>  Monday, October 26, 2015
>
> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs
>
>
>
> webex infor:
>
> https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f
>
>
>
> Meeting number:            644 964 970
>
> Meeting password:         flow.in.nets
>
>
>
>
>
> Join by phone
>
> 1-877-668-4493 Call-in toll free number (US/Canada)
>
> 1-650-479-3208 Call-in toll number (US/Canada)
>
> Access code: 644 964 970
>
>
>
>
>
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr
>
>

--f46d043c7d80ecfbbc052304a2da
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small">Hi Gunter,</div><div class=3D"gmail_def=
ault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br>=
</div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,san=
s-serif;font-size:small">Let&#39;s observe that BGP signalling is p2mp.=C2=
=A0</div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small"><br></div><div class=3D"gmail_default" style=3D=
"font-family:arial,helvetica,sans-serif;font-size:small">Now let&#39;s also=
 notice that as you correctly state TE tunnels are rather custom crafted p2=
p entities.=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:ar=
ial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_def=
ault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Then=
 natural question comes to mind ...=C2=A0</div><div class=3D"gmail_default"=
 style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div=
><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-ser=
if;font-size:small">How good does it serve to signal identical PATH_ID to a=
ll head ends for a given flow while what you need to do is to map it rather=
 uniquely in the network ?</div><div class=3D"gmail_default" style=3D"font-=
family:arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"=
gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:sm=
all">While in theory one could construct number of mp2p TE forwarding graph=
s each with identical PATH_ID on a per flow basis I bet in practice this wa=
s not the application you had in mind as its opex would be rather high as c=
ompared to real practical usefulness :)</div><div class=3D"gmail_default" s=
tyle=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div><=
div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif=
;font-size:small">Side question ... How are you going to provision mp2p TE =
? Are you going to dust-off some proposals for it from the past ? Example: =
<a href=3D"https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06">=
https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06</a>=C2=A0</d=
iv><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-s=
erif;font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-=
family:arial,helvetica,sans-serif;font-size:small">Or was perhaps your plan=
 to provision number of p2p TE tunnels from PCE/Controller with the identic=
al PATH_IDs ?=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:=
arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_d=
efault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Ch=
eers,<br>R.</div><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small"><br></div></div><div class=3D"gmail_ext=
ra"><br><div class=3D"gmail_quote">On Mon, Oct 26, 2015 at 5:26 PM, VAN DE =
VELDE, Gunter (Gunter) <span dir=3D"ltr">&lt;<a href=3D"mailto:gunter.van_d=
e_velde@alcatel-lucent.com" target=3D"_blank">gunter.van_de_velde@alcatel-l=
ucent.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">



<div style=3D"word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-fam=
ily:Calibri,sans-serif">
<div>
<div>Hi Robin,</div>
<div><br>
</div>
<div>Thanks for your note.</div>
<div><br>
</div>
<div>A tunnel is not always going over shortest path. Some tunnels are TE t=
unnels and are deliberately not going over a shortest path. This is somethi=
ng that=C2=A0<span style=3D"color:rgb(31,73,125)">draft-rosen-idr-tunnel-en=
caps-00=C2=A0</span>will not help to signal
 because the tunnel-encap attribute indicates tunnel parameters used by the=
 tail-end.</div>
<div><br>
</div>
<div>If a redirect tunnel represents a particular redirect/steering service=
 (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then it =
does become rather complex for BGP as signalling technology because a tunne=
l relationship is a unique between &#39;a headend&#39;
 and =E2=80=98a tailed&#39; device. It seems better to leave tunnel-setup t=
o dedicated tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.</div>
<div><br>
</div>
<div>The draft redirect-to-PATH_ID is providing the means to signal a flow-=
based redirect/steering service, and have each recipient router identify us=
ing local recursion for the PATH_IDs the corresponding tunnels/redirect-inf=
o. This allows for tunnel setup
 complexity to be taken away from BGP, while at the same time BGP is doing =
what it is very good at doing: &quot;It signals a policy=E2=80=9D in reliab=
le fashion.</div>
</div>
<div><br>
</div>
<div>Kind Regards,</div>
<div>G/</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<span>
<div style=3D"font-family:Calibri;font-size:12pt;text-align:left;color:blac=
k;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADD=
ING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:me=
dium none;PADDING-TOP:3pt">
<span style=3D"font-weight:bold">From:=C2=A0</span> Idr &lt;<a href=3D"mail=
to:idr-bounces@ietf.org" target=3D"_blank">idr-bounces@ietf.org</a>&gt; on =
behalf of Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com" target=3D"_=
blank">lizhenbin@huawei.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday 26 October 2015 at 16:=
51<br>
<span style=3D"font-weight:bold">To: </span>Susan Hares &lt;<a href=3D"mail=
to:shares@ndzh.com" target=3D"_blank">shares@ndzh.com</a>&gt;, &quot;<a hre=
f=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</a>&quot; &lt;<a h=
ref=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:jgs@bgp=
.nu" target=3D"_blank">jgs@bgp.nu</a>&quot; &lt;<a href=3D"mailto:jgs@bgp.n=
u" target=3D"_blank">jgs@bgp.nu</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[Idr] Regarding draft-vand=
evelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR interim (10/26/2=
015) 10:00am - 11:30am ET update<br>
</div><div><div class=3D"h5">
<div><br>
</div>
<div>


<div lang=3D"ZH-CN" link=3D"blue" vlink=3D"purple">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Hi Gunter,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Regarding your presentation, I have following comments:<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal t=
unnel setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffi=
c to the tunnel instead of signal tunnel
 setup. <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in=
 the draft make you confused? We just hope to =C2=A0just reuses the attribu=
tes of to specify the tunnel type to help steering
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">the traffic to tunnel. If this is not a good way, maybe we can de=
fine new attributes.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Best Regards,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Robin<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<div>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:=E5=
=AE=8B=E4=BD=93">=E5=8F=91=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></=
span></b><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:=E5=AE=
=8B=E4=BD=93"> Idr [<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blan=
k">mailto:idr-bounces@ietf.org</a>]
</span><b><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93">=
=E4=BB=A3=E8=A1=A8 </span></b><span lang=3D"EN-US" style=3D"font-size:10.0p=
t;font-family:=E5=AE=8B=E4=BD=93">Susan Hares<br>
</span><b><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93">=
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span lang=3D"EN-US">:</span></span></b=
><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=
=93"> 2015</span><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=
=BD=93">=E5=B9=B4<span lang=3D"EN-US">10</span>=E6=9C=88<span lang=3D"EN-US=
">25</span>=E6=97=A5<span lang=3D"EN-US">
 22:07<br>
</span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></b><span=
 lang=3D"EN-US"> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">
idr@ietf.org</a><br>
</span><b>=E6=8A=84=E9=80=81<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> <a href=3D"mailto:jgs@bgp.nu" target=3D"_blank">
jgs@bgp.nu</a><br>
</span><b>=E4=B8=BB=E9=A2=98<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET update<u></u><u=
></u></span></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">IDR WG members: <u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Below is an updated agenda for =
the IDR interim on 10/26/2015.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Sue <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">------------<u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">IDR interim October 26, 2015 <u=
></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">10:00 - 11:30am <u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">1. Chair&#39;s slides [10:00-10=
:05]<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">1. draft-litkowski-idr-flowspec=
-interfaceset-01.txt<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 speaker: Stephane =
Litowski=C2=A0 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0Time: 10:05-1=
0:15<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <a href=3D"https:/=
/datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/" targe=
t=3D"_blank">
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/=
</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">2. draft-hao-idr-flowspec-redir=
ect-tunnel-00<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Weiguo Ha=
o<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Time: 10:15 - 10:2=
5 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/" targ=
et=3D"_blank">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redire=
ct-tunnel/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<u></u><u></u=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">3. draft-vandevelde-idr-flowspe=
c-path-redirect<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Gunter Va=
n De Velde<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Time: 10:25- 10:35=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <a href=3D"http://=
datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect/" targ=
et=3D"_blank">
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect=
/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<u></u><u></u=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">4. Draft Name: draft-hao-idr-fl=
owspec-nvo3-02
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0Speaker: Weig=
uo Hao<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Duration: 10:35-10=
:40 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/" target=3D"_blan=
k">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a><u></u><=
u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">5. draft-liang-idr-bgp-flowspec=
-label-01.txt.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: <u></u><u=
></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0Duration: 10:=
40-10:45 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0<a href=3D"http://d=
atatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/" target=3D"_bla=
nk">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/</a>=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">6. draft-liang-idr-bgp-flowspec=
-time<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 presenter: Jianjie=
 You<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 time: 10:45-10:55<=
u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <a href=3D"http://=
datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/" target=3D"_bla=
nk">
http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/</a><u></=
u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">7. Draft Name: draft-li-idr-mpl=
s-path-programming-02<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Zhenbin L=
i<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Duration: 10:55-11=
:05 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/" target=
=3D"_blank">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">7. Draft Name: draft-li-idr-flo=
wspec-rpd-01<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Shunwan Z=
huang<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Duration: 11:05 - =
11:15 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/" target=3D"_blank"=
>http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/</a><u></u><u></=
u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">8.=C2=A0 Discussion of Flowspec=
 drafts<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0 11:15 - 11:3=
0am <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0Meeting Web-ex informatio=
n <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0Monday, October 26, 2015 =
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">10:00 am=C2=A0 |=C2=A0 Eastern =
Daylight Time (New York, GMT-04:00)=C2=A0 |=C2=A0 2 hrs
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">webex infor: <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://ietf.webex.c=
om/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f" target=3D"_blank">h=
ttps://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f</=
a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Meeting number: =C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 644 964 970 <u></u>
<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Meeting password:=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 flow.in.nets<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Join by phone<u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"tel:1-877-668-4493" =
value=3D"+18776684493" target=3D"_blank">1-877-668-4493</a> Call-in toll fr=
ee number (US/Canada)<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"tel:1-650-479-3208" =
value=3D"+16504793208" target=3D"_blank">1-650-479-3208</a> Call-in toll nu=
mber (US/Canada)<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Access code: 644 964 970<u></u>=
<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
</div>
</div>
</div></div></span>
</div>

<br>_______________________________________________<br>
Idr mailing list<br>
<a href=3D"mailto:Idr@ietf.org">Idr@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" rel=3D"noreferrer" ta=
rget=3D"_blank">https://www.ietf.org/mailman/listinfo/idr</a><br>
<br></blockquote></div><br></div>

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From: "VAN DE VELDE, Gunter (Gunter)" <gunter.van_de_velde@alcatel-lucent.com>
To: Lizhenbin <lizhenbin@huawei.com>, Gunter Van De Velde <guntervandeveldecc@icloud.com>, Robert Raszuk <robert@raszuk.net>
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On 4/22/15, 3:53 AM, "Idr on behalf of bruno.decraene@orange.com<mailto:bru=
no.decraene@orange.com>" <idr-bounces@ietf.org<mailto:idr-bounces@ietf.org>=
 on behalf of bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>> =
wrote:

Bruno:

Hi!  Sorry for the long delay..

Since we missed the ID deadline, I'm attaching what will be version =9607 a=
nd the diffs..along with specific answers to your comments below.

Thanks!!

Alvaro.


Hi all,

Please find below some comments on the document:

=A7 Abstract
*) =93It is cumbersome (if at all possible) for the end user to define poli=
cies that will select, after partial comparison, a path based on subjective=
 local (domain and/or node) criteria.=94
IMHO the sentence may be reworded. e.g. using a more factual/neutral orient=
ation. (Alternatively, the document would need to elaborate on how much =93=
cumbersome=94/=94impossible=94 is saved by using this new tool. (definitely=
 not all IMO)).

Yes.

OLD
   The BGP specification defines a Decision Process for installation of
   routes into the Loc-RIB.  This process takes into account an
   extensive series of path attributes, which can be manipulated to
   indicate preference for specific paths.  It is cumbersome (if at all
   possible) for the end user to define policies that will select, after
   partial comparison, a path based on subjective local (domain and/or
   node) criteria.

NEW
   The BGP specification describes a Decision Process for selecting the
   best route.  This process uses a series of steps, made up of path
   attributes and other values, to first determine the Degree of
   Preference of a route and later as tie breakers.  While existing
   mechanisms may achieve some of the same results described in this
   document, they can only do so through extensive configuration such as
   matching communities to explicit policy and/or route preference
   configurations present on each BGP speaker within their
   administrative domain (autonomous system).  Implementing some
   specific fine grained policies through such mechanisms is cumbersome,
   if even possible.





=A73.  The BGP Cost Community
*) =93The Point of Insertion sub-field contains the value of the path attri=
bute *after* which this community MUST be considered during the best path s=
election process.=94
- My reading of =93value of the path attribute=94 is http://www.iana.org/as=
signments/bgp-parameters/bgp-parameters.xhtml#bgp-parameters-2  Is this cor=
rect? Probably not as the IANA section of this draft propose a new/differen=
t registry for POI.

We put in a new sentence to clarify:

         This document creates a new Cost Community Point of Insertion
         Registry (Section 7.1) that includes the relevant path
         attributes and these other values.


 *) =93The high-order bit is reserved to indicate that the Cost Community M=
UST replace the path attribute specified by the Point of Insertion during t=
he best path selection process.=94
=93reserved=94 does not seem to be the best word given that the bit is not =
reserved (for future use) but specified in this document.

s/is reserved to indicate/indicates


 *) =93Multiple Cost Communities may indicate the same Point of Insertion. =
 In this case, the Cost Community with the lowest Community-ID is considere=
d first.=94
Multiple cost communities may be received with the same Point of Insertion =
and the same Community-ID. Please specific which one is to be taken or the =
error handling.

The same Community-ID is OK as long as it comes from different peers =97 in=
 the end the winner should be the one with the lowest cost.

OLD>
   Multiple Cost Communities may indicate the same Point of Insertion.
   In this case, the Cost Community with the lowest Community-ID is
   considered first.  In other words, all the Cost Communities for a
   specific Point of Insertion MUST be considered, starting with the one
   with the lowest Community-ID.


NEW>
   Multiple Cost Communities may indicate the same POI.  All the Cost
   Communities for a specific POI MUST be considered starting with the
   one(s) with the lowest Community-ID.  If multiple Cost Communities,
   for the same POI, with the same Community-ID are received for the
   same route from the same peer, then all except the one with the
   lowest Cost MUST be silently ignored.


=A7 5.  Deployment Considerations
*) =93It is important that a  consistent path selection process be maintain=
ed across the local  Autonomous System to avoid potential routing loops.=94
How much important?
Given the (below) use of a few SHOULD (vs MUST) there is no real assurance =
that no routing loops will form:
- =93If a BGP speaker receives a path that contains the Cost Community, it =
SHOULD consider its value at the Point of Insertion specified, when  calcul=
ating the best path=94
- =93if the Cost Community is used, all the nodes in the AS that may have t=
o consider this new community at any Point of Insertion SHOULD be  aware of=
 the mechanisms described in this document.=94

IMO, either :s/SHOULD/MUST in the 2 above sentence, or the document must di=
scuss the conditions which are safe and the ones which are not.

*) =93be  aware of the mechanisms described in this document=94 is not enou=
gh. It also needs to support the specific POI used.

Obviously avoiding loops is very important. ;-)

We also added some additional text.

NEW
   The mechanisms described in this document may be used to modify the
   Decision Process arbitrarily.  It is important that a consistent
   Decision Process be maintained across the local Autonomous System to
   avoid potential routing loops.  In other words, all the nodes in the
   AS that may have to consider the Cost Community at any POI MUST
   support the mechanisms described in this document.

   Any mechanism which allows the modification of the Decision Process
   is capable of forming persistent routing loops in the control plane.
   Network administrators deploying the Cost Community MUST ensure that
   each impacted router in the network supports them, including the POIs
   deployed within their network.  This is similar in scope to a network
   administrator who uses communities [RFC1997] combined with filters or
   other policies to modify the Decision Process of BGP speakers.
   Consistency must be enforced at an administrative level.


=A76.  Security Considerations

*) =93This document introduces no new security concerns to BGP or other spe=
cifications referenced in this document.=94
Really?? That sentence would rather make me feel that this document is not =
ready for RFC publication.
IMO a real consideration of the security aspects should be done.

e.g. (for free):
a) by default, this mechanism is activated.
b) non compliant implementation will accept and pass transitive Opaque comm=
unity (0x03)


a)      + b): anyone in the Internet can influence the routing in my AS; wh=
ich is not acceptable.

Yes, you're right.  We added considerations to turn it off by default.


=A7 7.  IANA Considerations
=93Some of the values in this new registry match the values assigned in the=
 BGP Path Attributes registry [BGP_PAR].  It is RECOMMENDED that an effort =
be made to assign the same values in both tables when applicable.=94
If this is the goal
- both allocation policies should probably be the same.
- IMHO the draft should comment on the POI value already assigned to BGP at=
tribute. Should they be considered =93reserved=94 of free to use as =93non =
applicable=94?
- it could be discussed that POI 129 =93IGP_COST=94 may best match BG Attri=
bute 3 NEXT_HOP

We decided to completely decouple the two registries.


 =A7 Appendix A.  Cost Community Point of Insertion Registry
*) It looks like this whole section should be in the IANA section, rather t=
han an appendix.

Yes, we moved it.

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ize: 14px;">
On 4/22/15, 3:53 AM, &quot;Idr on behalf of <a href=3D"mailto:bruno.decraen=
e@orange.com">
bruno.decraene@orange.com</a>&quot; &lt;<a href=3D"mailto:idr-bounces@ietf.=
org">idr-bounces@ietf.org</a> on behalf of
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gt; wrote:</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
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Bruno:</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Hi! &nbsp;Sorry for the long delay..</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Since we missed the ID deadline, I'm attaching what will be version =9607 a=
nd the diffs..along with specific answers to your comments below.</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Thanks!!</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
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Alvaro.</div>
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<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">Hi all,=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">Please =
find below some comments on the document:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">=A7 Abs=
tract<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">*) =93I=
t is cumbersome (if at all possible) for the end user to define policies th=
at will select, after partial comparison, a path based on subjective local =
(domain and/or node) criteria.=94<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">IMHO th=
e sentence may be reworded. e.g. using a more factual/neutral orientation. =
(Alternatively, the document would need to elaborate on how much =93cumbers=
ome=94/=94impossible=94 is saved by using this
 new tool. (definitely not all IMO)).</span></p>
</div>
</div>
</div>
</blockquote>
</span>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Yes.</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
OLD</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;The BGP specification d=
efines a Decision Process for installation of</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;routes into the Loc-RIB=
. &nbsp;This process takes into account an</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;extensive series of pat=
h attributes, which can be manipulated to</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;indicate preference for=
 specific paths. &nbsp;It is cumbersome (if at all</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;possible) for the end u=
ser to define policies that will select, after</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;partial comparison, a p=
ath based on subjective local (domain and/or</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;node) criteria.</font><=
/div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
NEW</div>
<div>
<div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;The BGP specification d=
escribes a Decision Process for selecting the</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;best route. &nbsp;This =
process uses a series of steps, made up of path</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;attributes and other va=
lues, to first determine the Degree of</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;Preference of a route a=
nd later as tie breakers. &nbsp;While existing</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;mechanisms may achieve =
some of the same results described in this</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;document, they can only=
 do so through extensive configuration such as</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;matching communities to=
 explicit policy and/or route preference</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;configurations present =
on each BGP speaker within their</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;administrative domain (=
autonomous system). &nbsp;Implementing some</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;specific fine grained p=
olicies through such mechanisms is cumbersome,</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;if even possible.</font=
></div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
</div>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
mlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:/=
/www.w3.org/TR/REC-html40">
<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">=A7</sp=
an><span lang=3D"EN-US"></span><span lang=3D"EN-US" style=3D"color:#1F497D"=
>3.&nbsp; The BGP Cost Community<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">*) =93T=
he Point of Insertion sub-field contains the value of the path attribute *a=
fter* which this community MUST be considered during the best path selectio=
n process.=94<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">- My re=
ading of =93value of the path attribute=94 is
<a href=3D"http://www.iana.org/assignments/bgp-parameters/bgp-parameters.xh=
tml#bgp-parameters-2">
http://www.iana.org/assignments/bgp-parameters/bgp-parameters.xhtml#bgp-par=
ameters-2</a>&nbsp; Is this correct? Probably not as the IANA section of th=
is draft propose a new/different registry for POI.</span></p>
</div>
</div>
</div>
</blockquote>
</span>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
We put in a new sentence to clarify:</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div>
<div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Th=
is document creates a new Cost Community Point of Insertion</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Re=
gistry (Section 7.1) that includes the relevant path</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;at=
tributes and these other values.</font></div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
</div>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
mlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:/=
/www.w3.org/TR/REC-html40">
<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span><span style=3D"color: rgb(31, 73, 125); font-family: Calib=
ri, sans-serif; font-size: 11pt;">*) =93The high-order bit is reserved to i=
ndicate that the Cost Community MUST replace the
 path attribute specified by the Point of Insertion during the best path se=
lection process.=94</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">=93rese=
rved=94 does not seem to be the best word given that the bit is not reserve=
d (for future use) but specified in this document.</span></p>
</div>
</div>
</div>
</blockquote>
</span>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
s/is reserved to indicate/indicates</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
mlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:/=
/www.w3.org/TR/REC-html40">
<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span><span style=3D"color: rgb(31, 73, 125); font-family: Calib=
ri, sans-serif; font-size: 11pt;">*) =93Multiple Cost Communities may indic=
ate the same Point of Insertion.&nbsp; In this case,
 the Cost Community with the lowest Community-ID is considered first.=94</s=
pan></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">Multipl=
e cost communities may be received with the same Point of Insertion and the=
 same Community-ID. Please specific which one is to be taken or the error h=
andling.</span></p>
</div>
</div>
</div>
</blockquote>
</span>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
The same Community-ID is OK as long as it comes from different peers =97 in=
 the end the winner should be the one with the lowest cost.</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<div><font face=3D"Calibri,sans-serif">OLD&gt;</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;Multiple Cost Communiti=
es may indicate the same Point of Insertion.</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;In this case, the Cost =
Community with the lowest Community-ID is</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;considered first. &nbsp=
;In other words, all the Cost Communities for a</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;specific Point of Inser=
tion MUST be considered, starting with the one</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;with the lowest Communi=
ty-ID.</font></div>
<div><font face=3D"Calibri,sans-serif"><br>
</font></div>
<div><font face=3D"Calibri,sans-serif"><br>
</font></div>
<div><font face=3D"Calibri,sans-serif">NEW&gt;</font></div>
<div>
<div>
<div>
<div>&nbsp; &nbsp;Multiple Cost Communities may indicate the same POI. &nbs=
p;All the Cost</div>
<div>&nbsp; &nbsp;Communities for a specific POI MUST be considered startin=
g with the</div>
<div>&nbsp; &nbsp;one(s) with the lowest Community-ID. &nbsp;If multiple Co=
st Communities,</div>
<div>&nbsp; &nbsp;for the same POI, with the same Community-ID are received=
 for the</div>
<div>&nbsp; &nbsp;same route from the same peer, then all except the one wi=
th the</div>
<div>&nbsp; &nbsp;lowest Cost MUST be silently ignored.</div>
</div>
</div>
</div>
<div><br>
</div>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
mlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:/=
/www.w3.org/TR/REC-html40">
<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color: rgb(31, 73, 125); font-family:=
 Calibri, sans-serif; font-size: 11pt;">=A7 5.&nbsp; Deployment Considerati=
ons</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">*) =93I=
t is important that a&nbsp; consistent path selection process be maintained=
 across the local&nbsp; Autonomous System to avoid potential routing loops.=
=94<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">How muc=
h important?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">Given t=
he (below) use of a few SHOULD (vs MUST) there is no real assurance that no=
 routing loops will form:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">- =93If=
 a BGP speaker receives a path that contains the Cost Community, it SHOULD =
consider its value at the Point of Insertion specified, when&nbsp; calculat=
ing the best path=94<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">- =93if=
 the Cost Community is used, all the nodes in the AS that may have to consi=
der this new community at any Point of Insertion SHOULD be&nbsp; aware of t=
he mechanisms described in this document.=94<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">IMO, ei=
ther :s/SHOULD/MUST in the 2 above sentence, or the document must discuss t=
he conditions which are safe and the ones which are not.</span></p>
</div>
</div>
</div>
</blockquote>
</span><span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font=
-family: Calibri, sans-serif; font-size: 14px;">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
mlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:/=
/www.w3.org/TR/REC-html40">
<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">*) =93b=
e&nbsp; aware of the mechanisms described in this document=94 is not enough=
. It also needs to support the specific POI used.<o:p></o:p></span></p>
</div>
</div>
</div>
</blockquote>
</span>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Obviously avoiding loops is very important. ;-)</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
We also added some additional text.</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
NEW</div>
<div>
<div>
<div>
<div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;The mechanisms describe=
d in this document may be used to modify the</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;Decision Process arbitr=
arily. &nbsp;It is important that a consistent</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;Decision Process be mai=
ntained across the local Autonomous System to</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;avoid potential routing=
 loops. &nbsp;In other words, all the nodes in the</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;AS that may have to con=
sider the Cost Community at any POI MUST</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;support the mechanisms =
described in this document.</font></div>
<div><font face=3D"Calibri,sans-serif"><br>
</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;Any mechanism which all=
ows the modification of the Decision Process</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;is capable of forming p=
ersistent routing loops in the control plane.</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;Network administrators =
deploying the Cost Community MUST ensure that</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;each impacted router in=
 the network supports them, including the POIs</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;deployed within their n=
etwork. &nbsp;This is similar in scope to a network</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;administrator who uses =
communities [RFC1997] combined with filters or</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;other policies to modif=
y the Decision Process of BGP speakers.</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;Consistency must be enf=
orced at an administrative level.</font></div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
</div>
</div>
</div>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
mlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:/=
/www.w3.org/TR/REC-html40">
<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family: Calibri, =
sans-serif; font-size: 11pt; color: rgb(31, 73, 125);">=A7</span><span lang=
=3D"EN-US" style=3D"font-family: Calibri, sans-serif; font-size: 11pt;"></s=
pan><span lang=3D"EN-US" style=3D"font-family: Calibri, sans-serif; font-si=
ze: 11pt; color: rgb(31, 73, 125);">6.&nbsp;
 Security Considerations</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">*) =93T=
his document introduces no new security concerns to BGP or other specificat=
ions referenced in this document.=94<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">Really?=
? That sentence would rather make me feel that this document is not ready f=
or RFC publication.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">IMO a r=
eal consideration of the security aspects should be done.<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">e.g. (f=
or free): <o:p>
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">a) by d=
efault, this mechanism is activated.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">b) non =
compliant implementation will accept and pass transitive Opaque community (=
0x03)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-18.0pt;mso-list:l1 leve=
l1 lfo3"><!--[if !supportLists]--><span lang=3D"EN-US" style=3D"color:#1F49=
7D"><span style=3D"mso-list:Ignore">a)<span style=3D"font-style: normal; fo=
nt-variant: normal; font-weight: normal; font-size: 7pt; line-height: norma=
l; font-family: 'Times New Roman';">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><!--[endif]--><span lang=3D"EN-US" style=3D"color:#1F4=
97D">&#43; b): anyone in the Internet can influence the routing in my AS; w=
hich is not acceptable.</span></p>
</div>
</div>
</div>
</blockquote>
</span>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Yes, you're right. &nbsp;We added considerations to turn it off by default.=
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
mlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:/=
/www.w3.org/TR/REC-html40">
<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoListParagraph" style=3D"text-indent:-18.0pt;mso-list:l1 leve=
l1 lfo3"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span style=3D"color: rgb(31, 73, 125); font-family:=
 Calibri, sans-serif; font-size: 11pt;">=A7 7.&nbsp; IANA Considerations</s=
pan></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">=93Some=
 of the values in this new registry match the values assigned in the BGP Pa=
th Attributes registry [BGP_PAR].&nbsp; It is RECOMMENDED that an effort be=
 made to assign the same values in both tables
 when applicable.=94<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">If this=
 is the goal<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">- both =
allocation policies should probably be the same.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">- IMHO =
the draft should comment on the POI value already assigned to BGP attribute=
. Should they be considered =93reserved=94 of free to use as =93non applica=
ble=94?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">- it co=
uld be discussed that POI 129 =93IGP_COST=94 may best match BG Attribute 3 =
NEXT_HOP</span></p>
</div>
</div>
</div>
</blockquote>
</span>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
We decided to completely decouple the two registries.</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION" style=3D"color: rgb(0, 0, 0); font-family=
: Calibri, sans-serif; font-size: 14px;">
<blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=3D"BORDER-LEFT:=
 #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;">
<div xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micro=
soft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" x=
mlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:/=
/www.w3.org/TR/REC-html40">
<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span><span style=3D"color: rgb(31, 73, 125); font-family: Calib=
ri, sans-serif; font-size: 11pt;">=A7 Appendix A.&nbsp; Cost Community Poin=
t of Insertion Registry</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">*) It l=
ooks like this whole section should be in the IANA section, rather than an =
appendix.<o:p></o:p></span></p>
</div>
</div>
</div>
</blockquote>
</span>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-s=
ize: 14px;">
Yes, we moved it.</div>
</body>
</html>

--_000_D24E929AE0D85aretanaciscocom_--

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From: "Alvaro Retana (aretana)" <aretana@cisco.com>
To: Eric C Rosen <erosen@juniper.net>
Thread-Topic: [Idr] 2 week WG LC for draft-ietf-custom-decision (4/20 to 5/4/2015)
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Subject: Re: [Idr] 2 week WG LC for draft-ietf-custom-decision (4/20 to 5/4/2015)
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On 4/28/15, 3:44 PM, "Idr on behalf of Eric C Rosen" <idr-bounces@ietf.org
on behalf of erosen@juniper.net> wrote:

Eric:

Hi!  Sorry for the long delay..

Since we missed the ID deadline (several of them), I'm attaching what will
be version =AD07 and the diffs..along with specific answers to your comment=
s
below.

Thanks!!

Alvaro.




>I think there are a few issues that should be addressed before
>publication of this draft is requested.
>
>1. IANA Considerations and Extended Community Sub-Type Registries
>
>The document should be brought into conformance with RFC 7153 ("IANA
>Registries for BGP Extended Communities").
>
>Specifically, I think section 3 should begin something like:
>
>"IANA has assigned the codepoint value 1 to 'Cost Community' in both the
>Transitive Opaque Extended Community Sub-Types registry and the
>Non-Transitive Opaque Extended Community Sub-Types registry."  When a
>Cost Community is attached to a BGP Update, it is determined by
>provisioning whether the transitive or the non-transitve Cost Community
>is used.
>
>Then just go on to define the Value field.
>
>Similarly, the first paragraph of the IANA Considerations section should
>be:
>
>IANA has assigned the codepoint value 1 to 'Cost Community' in both the
>Transitive Opaque Extended Community Sub-Types registry and the
>Non-Transitive Opaque Extended Community Sub-Types registry."

Both sections were updated.


>2. Mandatory features?
>
>The draft doesn't say anything about which PoIs, if any, are mandatory
>to implement if Cost Community is supported.  Is it the intention that
>none of the PoIs be mandatory?
>
>Whether a given PoI is mandatory or not, is it required that a given PoI
>not be used in a given AS unless all BGP speakers in that AS support it?
>  If not, how is consistency of routing ensured?

We added some text in both the Deployment and Security Consideration
sections.  The bottom line is that the need to support a specific POI
depends on the policy in a specific AS.  This leads to making the operator
responsible for the proper design (where all the impacted routers in the
network support the needed POIs) and deployment of the policies.

While the Cost Community is a general mechanism, our deployment experience
tells us that the most used POIs are ABSOLUTE_VALUE and IGP_COST.


>3. Community-ID high order bit
>
>       "The Community-ID sub-field contains an identifier to distinguish
>       between multiple instances of the Cost Community.  The high-order
>       bit is reserved to indicate that the Cost Community MUST replace
>       the path attribute specified by the Point of Insertion during the
>       best path selection process."
>
>Before this paragraph, the draft talks about considering the Cost
>Community AFTER considering the attribute identified by the PoI.  This
>paragraph suggests that if the high-order bit of the Community-ID is
>set, the Cost Community is considered INSTEAD of the attribute
>identified by the PoI.  It might be better if the previous text in the
>draft talked about considering the Cost Community "after or instead of
>..., depending on the setting of the high-order bit of the Community-ID."

We added that to the POI field description:

      The Point of Insertion (POI) sub-field indicates *after*, or
      *instead of*, which step in the Decision Process the Cost
      Community MUST be considered.




>However, I don't understand what to do if you are comparing two routes,
>and for a given PoI and Community-ID, one of them has the high order bit
>set in the Community-ID and one does not.

Note that setting the high-order bit makes the POI slightly different: it
is now replacing the step in the selection process.

If we then receive a route with the high-bit set and another w/out it, we
wouldn't compare them directly.  We would first consider the one w/the
high-bit set *instead* of the attribute it replaces..and then consider the
one w/out the high-bit set.


>Similarly, if one route has a particular Community-ID for a given PoI,
>and another does not have that Community-ID for that PoI, how do we
>react to the setting of the high-order bit when we compare the two routes?

If the route that has a Community-ID for a POI also has the high-order bit
set, then that Cost Community would be considered instead of the attribute
it replaces.  The other route, which doesn't have a Cost Community for
that POI would still have the "normal" attribute to compare.


>4. Questions about particular PoIs
>
>a. ABSOLUTE_VALUE.  Is the intention here that ABSOLUTE_VALUE be used to
>assign the "degree of preference" (RFC4271 section 9.1.1) to a route,
>and that LOCAL_PREF, if present, be used as a tie-breaker when all the
>feasible routes have the same ABSOLUTE_VALUE?  If so, it would be good
>to say that explicitly.  Other text in the draft suggests that Cost
>Community is only used for "breaking a tie among generally equal paths",
>while text in RFC4271 suggests that LOCAL_PREF is used to assign degree
>of preference and not to break ties.

We clarified the definition.

>
>Is there any signficance to the high-order bit of the Community-ID if
>the PoI is ABSOLUTE_VALUE?

No.  We added text to say that it "MUST be ignored when used with the
ABSOLUTE_VALUE POI".


>b. EXTERNAL_INTERNAL.  I think this needs a better explanation of just
>when in the decision process it is considered.  Does this refer to
>paragraph d of section 9.1.2.2 of RFC 4271?

Yes.

>c. IGP_COST.  It's not clear to me whether this PoI has any significance
>when AIGP is used.

Ah, yes.

There are 3 cases.=20

(1) AIGP is "executed BEFORE any of the tie-breaking procedures".  This is
just another step in the decision process, already covered in the POI
Table.

(2) AIGP replaces the IGP_COST and the Cost Community is examined *after*
that.  Nothing special here because we don=B9t care what the value was at
the step before..

(3) AIGRP replaces the IGP_COST and the high-order bit is set.  In this
case both would try to replace the same value.  We added this text:

         If the Accumulated IGP Metric Attribute (AIGP) [RFC7311] is
         used such that the "AIGP-enhanced interior cost" replaces the
         "interior cost" tie breaker in the Decision Process, and the
         high-order bit is set with the IGP_COST POI, then the Cost
         Community SHOULD be ignored in favor of the process described
         in Section 4.2 of [RFC7311].






>d. AS_PATH.  Presumably if the high-order bit of the Community-ID is
>set, the length of the AS_PATH is not used as a tie breaker, but the
>AS_PATH would still be used to prevent loops.  If this interpretation is
>correct, that would be good to mention explicitly; othewise someone
>might assume that the AS_PATH is completely ignored in this case.

Yes, this may be a general interpretation issue.

NEW
         If the high-order bit is set, the Cost in the Cost Community
         may replace the value of a path attribute at a specific step in
         the Decision Process, but not the attribute itself.  For
         example, if the high-order bit is set with the AS_PATH POI, the
         AS_PATH attribute would still be used for loop prevention
         [RFC4271], but the Cost would replace its length in the
         Decision Process.




>e LOCAL_PREF.  If a route has both a LOCAL_PREF and a Cost Community
>with the LOCAL_PREF PoI, and if the high-order bit of the Community-ID
>is set, then the LOCAL_PREF would be ignored.  Is there a use case for
>this particular combination?

In that case, the result of using LOCAL_PREF or the Cost Community would
be the same.

>5. Security Considerations
>
>Considering the havoc that could be wreaked if a Cost Community gets
>improperly added or modified, through either error or malfeasance, it
>doesn't seem right to just say "no security considerations".

Yes, we rewrote this section to turn it off my default.


>6. Terminological Consistency
>
>It's a bit of a chore to figure out the relationship between "metrics",
>"attributes", "points of insertion", and "communities".  These terms do
>not appear to be used consistently through the document.  Terms like
>"tie breaker" and "degree of preference" do not appear to be used the
>same way they are used in RFC 4271.  Undefined terms like "generally
>equal paths" are used freely.  I think interoperability will be
>facilitated by a greater degree of precision and consistency in the
>terminology.

Point taken..we did a general edit of the document to be more consistent.


>
>
>Additional comments interspersed in the text, look for lines beginning
>with "Eric>".
>
>
>Inter-Domain Routing                                           A. Retana
>Internet-Draft                                       Cisco Systems, Inc.
>Intended status: Standards Track                                R. White
>Expires: October 22, 2015                                       Ericsson
>                                                           April 20, 2015
>
>
>                       BGP Custom Decision Process
>                    draft-ietf-idr-custom-decision-06
>
>Abstract
>
>    The BGP specification defines a Decision Process for installation of
>    routes into the Loc-RIB.  This process takes into account an
>    extensive series of path attributes, which can be manipulated to
>    indicate preference for specific paths.  It is cumbersome (if at all
>    possible) for the end user to define policies that will select, after
>    partial comparison, a path based on subjective local (domain and/or
>    node) criteria.
>
>Eric> I doubt that "subjective" is what is meant here; generally routing
>is based on objective criteria.  The above also seems to suggest that
>the criteria can be specific to a particular node; that seems strange,
>given the need for consistent routing within a domain.

NEW
   The BGP specification describes a Decision Process for selecting the
   best route.  This process uses a series of steps, made up of path
   attributes and other values, to first determine the Degree of
   Preference of a route and later as tie breakers.  While existing
   mechanisms may achieve some of the same results described in this
   document, they can only do so through extensive configuration such as
   matching communities to explicit policy and/or route preference
   configurations present on each BGP speaker within their
   administrative domain (autonomous system).  Implementing some
   specific fine grained policies through such mechanisms is cumbersome,
   if even possible.





>
>    This document defines a new Extended Community, called the Cost
>    Community, which may be used in tie breaking during the best path
>    selection process.  The end result is a local custom decision
>    process.
>
>
>1.  Introduction
>
>    There are a number of metrics available within the BGP decision
>    process [RFC4271] which can be used to determine the exit point for
>    traffic, but there is no metric, or combination of metrics, which can
>    be used to break a tie among generally equal paths.
>
>Eric> What is meant by "Generally equal paths"?
>
>Eric> RFC 4271 section 9.1.2.2 is called "Breaking Ties".  Yet the above
>suggests that there is no way to break ties.

NEW>
   The BGP specification defines a Decision Process [RFC4271] for
   selecting the best route.  This process uses a series of steps, made
   up of path attributes and other values, to first determine the Degree
   of Preference of a route and later as tie breakers.  While existing
   mechanisms may achieve some of the same results described in this
   document, they can only do so through extensive configuration such as
   matching communities to explicit policy and/or route preference
   configurations present on each BGP speaker within their
   administrative domain (autonomous system).  Implementing some
   specific fine grained policies through such mechanisms is cumbersome,
   if even possible.



>
>    o  LOCAL_PREF: The LOCAL_PREF is an absolute tie breaker near the
>
>Eric> RFC 4271 talks about LOCAL_PREF to establish the degree of
>preference, not to break ties.  In general, the terminology in this
>draft is not well-aligned with the terminology in section 9.1 of RFC 4271.
>
>       beginning of the decision process.  There is no way to configure
>       the LOCAL_PREF such that the MED, IGP metric, and other metrics
>       are considered before breaking a tie.
>
>Eric> I do not understand what this paragraph is trying to say.  I
>thought the whole point of LOCAL_PREF was to establish a degree of
>preference that does not take these other factors into account.

We did a general review to be in alignment and consistent.

NEW>
   o  Local Preference: The LOCAL_PREF is an attribute used to calculate
      the Degree of Preference in the Decision Process.  There is no
      secondary degree of preference indicator available that can be
      considered after the MED, IGP metric, or other attributes.





>
>    o  MED: The MULTI_EXIT_DISC is an indicator of which local entrance
>       point an AS would like a peering AS to use; MED isn't suitable to
>       break the tie between two equal cost paths learned from two peer
>       ASes.  MED is also compared before the IGP metric; there is no way
>       to set the MED so a path with a higher IGP metric is preferred
>       over a path with a lower IGP metric.
>
>Eric> I don't follow this; if MED is compared before the IGP metric is
>considered, why can't it cause a route with lower IGP metric to be
>eliminated from consideration while a route with higher IGP metric
>continues to be considered?  A route via a different peering AS will
>still be preferred if it has a lower IGP metric; is that what the above
>is trying to say?

What we were trying to say was that after the MED is compared, there's no
way to come back to it to indicate that a higher metric route is preferred.

>
>    o  IGP Metric: It is possible, using the IGP metric, to influence
>       individual paths with otherwise equal cost metrics, but only by
>
>Eric> It is really not clear what is meant by "otherwise equal cost
>metrics".

We meant that if the routes had the same next hop ("otherwise equal cost
metrics")...  In any case, we removed that phrase and think that it is
clearer now.

>
>       changing the next hop towards each path, and configuring the IGP
>       costs of reaching each next hop.  This method is cumbersome, and
>       prone to confusion and error.
>
>    The BGP specification defines a Decision Process for installation of
>    routes into the Loc-RIB.  This process takes into account an
>    extensive series of path attributes, which can be manipulated to
>    indicate preference for specific paths.  It is cumbersome (if at all
>    possible) for the end user to define policies that will select, after
>    partial comparison, a path based on subjective local (domain and/or
>    node) criteria.
>
>Eric> See comment above re "subjective criteria" and "node criteria".

Yes..clarified.

>
>...
>
>3.  The BGP Cost Community
>
>    The BGP Cost Community is an Opaque Extended Community [RFC4360]
>    defined as follows:
>
>    Type Field:
>       The value of the high-order octet of this Opaque Extended
>       Community is 0x03 or 0x43.  The value of the low-order octet of
>       the extended type field for this community is 0x01.
>
>Eric> Above should be brought into alignment with RFC 7153, as suggested
>at the start of this message.

Done.

>
>    Value Field:
>       The Value field contains three distinct sub-fields, described
>       below:
>
>
>                      +------------------------------+
>                      | Point of Insertion (1 octet) |
>                      +------------------------------+
>                      | Community-ID (1 octet)       |
>                      +------------------------------+
>                      | Cost (4 octets)              |
>                      +------------------------------+
>
>       The Point of Insertion sub-field contains the value of the path
>       attribute *after* which this community MUST be considered during
>       the best path selection process.
>
>
>
>          The BGP decision process includes some steps that do not
>          correspond to any path attribute; the following values are
>          defined:
>
>          128  ABSOLUTE_VALUE - Indicates that the Cost Community MUST be
>             considered as the first step in determining the Degree of
>             Preference of a path.
>
>          129  IGP_COST - Indicates that the Cost Community MUST be
>             considered after the interior (IGP) distance to the next-hop
>             has been compared.
>
>          130  EXTERNAL_INTERNAL - Indicates that the Cost Community MUST
>             be considered after the paths advertised by BGP speakers in
>             a neighboring autonomous system (if any) have been selected.
>
>          131  BGP_ID - Indicates that the Cost Community MUST be
>             considered after the BGP Identifier (or ORIGINATOR_ID
>             [RFC4456]) has been compared.
>
>       The Community-ID sub-field contains an identifier to distinguish
>       between multiple instances of the Cost Community.  The high-order
>       bit is reserved to indicate that the Cost Community MUST replace
>       the path attribute specified by the Point of Insertion during the
>       best path selection process.
>
>Eric> See above questions about the semantics of the Community-ID
>sub-field when the high-order bit does not have the same setting for all
>the communities at a given Point of Insertion.

Answered above.

>
>       The Cost sub-field contains a value assigned by the network
>       administrator and that is significant to the local autonomous
>       system.  The lower cost MUST be preferred.  The default value is
>       0x7FFFFFFF (half the maximum value).
>
>Eric> Is this supposed to be a 32-bit unsigned integer?  If so, that
>needs to be said.

Done.

>
>
>4.  Operation
>
>    The network administrator may use the Cost Community to assign a
>    value to a path originated or learned from a peer in any part of the
>    local domain.  The Point of Insertion MUST also be specified using
>    the values defined in Appendix A.
>
>Eric> Please define "local domain".

Clarified "local domain" > administrative domain =3D autonomous system

>
>    If a BGP speaker receives a path that contains the Cost Community, it
>    SHOULD consider its value at the Point of Insertion specified, when
>    calculating the best path [RFC4271].
>
>    If the Point of Insertion is not valid for the local best path
>    selection implementation, then the Cost Community SHOULD be silently
>    ignored.  Paths that do not contain the Cost Community (for a valid,
>    particular Point of Insertion) MUST be considered to have the default
>    value.
>
>Eric> If a path has the cost community for a particular PoI, I think the
>intention is that it is considered to have the default value for all
>Community-IDs that do not appear in the list of communities for that
>PoI.  This is never actually said anywhere.

Yes, we added that explicitly.

>
>    Multiple Cost Communities may indicate the same Point of Insertion.
>    In this case, the Cost Community with the lowest Community-ID is
>    considered first.  In other words, all the Cost Communities for a
>    specific Point of Insertion MUST be considered, starting with the one
>    with the lowest Community-ID.
>
>    If a range of routes is to be aggregated and the resultant aggregate
>    path attributes do not carry the ATOMIC_AGGREGATE attribute, then the
>    resulting aggregate SHOULD have an Extended Communities path
>    attribute which contains the set union of all the Cost Communities
>    from all of the aggregated routes.  If multiple Cost Communities for
>    the same Point of Insertion (and with the same Community-ID) exist,
>    then only the ones with the highest Cost SHOULD be included.
>
>    If the non-transitive version of a Cost Community is received across
>    an Autonomous System boundary, then the receiver MUST strip it off
>    the BGP update, and ignore it when running the selection process.
>
>5.  Deployment Considerations
>
>    The mechanisms described in this document may be used to modify the
>    BGP path selection process arbitrarily.  It is important that a
>    consistent path selection process be maintained across the local
>    Autonomous System to avoid potential routing loops.  In other words,
>    if the Cost Community is used, all the nodes in the AS that may have
>    to consider this new community at any Point of Insertion SHOULD be
>    aware of the mechanisms described in this document.
>
>Eric> It's not clear what "SHOULD be aware of the mechanisms" means.  Do
>all nodes in a "local domain" have to support the exact same set of PoIs?

We changed the text to this:

NEW>
   The mechanisms described in this document may be used to modify the
   Decision Process arbitrarily.  It is important that a consistent
   Decision Process be maintained across the local Autonomous System to
   avoid potential routing loops.  In other words, all the nodes in the
   AS that may have to consider the Cost Community at any POI MUST
   support the mechanisms described in this document.

   Any mechanism which allows the modification of the Decision Process
   is capable of forming persistent routing loops in the control plane.
   Network administrators deploying the Cost Community MUST ensure that
   each impacted router in the network supports them, including the POIs
   deployed within their network.  This is similar in scope to a network
   administrator who uses communities [RFC1997] combined with filters or
   other policies to modify the Decision Process of BGP speakers.
   Consistency must be enforced at an administrative level.



>
>
>6.  Security Considerations
>
>    This document introduces no new security concerns to BGP or other
>    specifications referenced in this document.
>
>Eric> This doesn't seem true.

Right..this is the new text.

NEW>
   This document defines a new Extended Community, called the Cost
   Community, which may be used to customize the Decision Process.  As
   such, the considerations outlined in [RFC4360] and [RFC4271] do not
   change.

   To minimize the potential of creating routing loops (Section 5) or
   otherwise affecting the Decision Process in unintended ways, the
   propagation of Cost Communities MUST be disabled by default and MUST
   be explicitly enabled by the network administrator.  Furthermore, all
   transitive Cost Communities received across an Autonomous System
   boundary without explicit configuration MUST be stripped off the BGP
   update, and ignored during the Decision Process.

   An ill-designed policy deployment using the Cost Community (e.g. one
   where there is no consistent POI support throughout the AS) may
   result in persistent routing loops that could result in loss of
   traffic.  The design and implementation of policies for best route
   selection are outside the scope of this document.



>
>7.  IANA Considerations
>
>    IANA is asked to assign the type values indicated in Section 3 to the
>    Cost Community in the BGP Opaque Extended Community registry
>    [BGP_EXT].
>
>Eric> Align with RFC 7311 as suggested above.

Done.

>
>    Section 3 also defines a series of values to be used to indicate
>    steps in the best path selection process that do not map directly to
>    a path attribute.  IANA is expected to maintain a registry for the
>    Cost Community Point of Insertion values.  Values 1 through 127 are
>    to be assigned using the "Standards Action" policy or the Early
>    Allocation process [RFC7120].  Values 128 through 191 are to be
>    assigned using the "IETF Consensus" policy.  Values 192 through 254
>    are to be assigned using the "First Come First Served" policy.
>    Values 0 and 255 are reserved for future use and SHOULD NOT be used.
>
>Eric> This last sentence should probably just be "Values 0 and 255 are
>reserved."

Yes.

>
>_______________________________________________
>Idr mailing list
>Idr@ietf.org
>https://www.ietf.org/mailman/listinfo/idr


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--_003_D24E9494E0D99aretanaciscocom_--


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To: "VAN DE VELDE, Gunter (Gunter)" <gunter.van_de_velde@alcatel-lucent.com>
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Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiBJRFIgaW50ZXJpbSAoMTAvMjYvMjAxNSkgMTA6MDBh?= =?utf-8?q?m_-_11=3A30am_ET_update?=
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Gunter,

Sorry but I am afraid this does not work :(.

BGP uses notion of implicit withdraw for a given NLRI.

So for particular flow NLRI I can advertise only single PATH_ID as
subsequent NLRI with different PATH_ID will be treated as withdraw of the
former.

So if indeed as you said "..each PE the redirect tunnel will share the
unique PATH_ID .." that effectively means that for a given flow NLRI I can
advertise redirect service to only one PE pretty much killing p2mp
advantage of BGP and what's worse blocking from advertising the same flow
NLRI with any different set of actions.

Best,
R.




On Mon, Oct 26, 2015 at 6:15 PM, VAN DE VELDE, Gunter (Gunter) <
gunter.van_de_velde@alcatel-lucent.com> wrote:

> Robert,
>
> Yeah, BGP is indeed p2mp relationship=E2=80=A6 This is important to keep =
in mind,
> and that it is exactly why PATH-ID makes sense.
>
> With 32-bit you have 2^32 and with 128-bit you have 2^128 unique
> identifiers. That is quite a lot and will serve redirect policies in most
> networks I would assume.
>
> In manual setup it is simple for a single PE:
>
>    - Preconfigure the PE with a tunnel and map it to a given unique
>    PATH_ID
>    - This tunnel now exists, however it is not used
>    -  Now the controller (i.e. vRR) sends a flow spec rule to identify
>    the traffic using this tunnel and steers traffic into this tunnel
>
> When you have multiple PE=E2=80=99s using a single redirect service:
>
>    - Same setup as above, but on each PE the redirect tunnel will share
>    the unique PATH_ID reflecting the redirect tunnel service
>    - (there is no relationship that the destination is the same=E2=80=A6 =
just the
>    redirect service is the same)
>
> When you have 5000 of these Redirect services planned:
>
>    - Manual config will make you go crazy very soon
>    - The above can be 100% orchestrated or a mix of manual/orchestrated
>    could be used
>
>
> The benefit of redirect-to-PATH_ID facilitates that network redirect
> service it decoupled from the tunnel creation/characteristics. hence the
> setup of a mp2p tunnel is beyond the scope the path_ID redirect draft if
> that happens to be the redirect service you had in mind.
>
> G/
>
>
> From: <rraszuk@gmail.com> on behalf of Robert Raszuk <robert@raszuk.net>
> Date: Monday 26 October 2015 at 17:41
> To: Gunter Van de Velde <gunter.van_de_velde@alcatel-lucent.com>
> Cc: Lizhenbin <lizhenbin@huawei.com>, Susan Hares <shares@ndzh.com>, "
> idr@ietf.org" <idr@ietf.org>, "jgs@bgp.nu" <jgs@bgp.nu>
> Subject: Re: [Idr] Regarding
> draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR inte=
rim (10/26/2015)
> 10:00am - 11:30am ET update
>
> Hi Gunter,
>
> Let's observe that BGP signalling is p2mp.
>
> Now let's also notice that as you correctly state TE tunnels are rather
> custom crafted p2p entities.
>
> Then natural question comes to mind ...
>
> How good does it serve to signal identical PATH_ID to all head ends for a
> given flow while what you need to do is to map it rather uniquely in the
> network ?
>
> While in theory one could construct number of mp2p TE forwarding graphs
> each with identical PATH_ID on a per flow basis I bet in practice this wa=
s
> not the application you had in mind as its opex would be rather high as
> compared to real practical usefulness :)
>
> Side question ... How are you going to provision mp2p TE ? Are you going
> to dust-off some proposals for it from the past ? Example:
> https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06
>
> Or was perhaps your plan to provision number of p2p TE tunnels from
> PCE/Controller with the identical PATH_IDs ?
>
> Cheers,
> R.
>
>
> On Mon, Oct 26, 2015 at 5:26 PM, VAN DE VELDE, Gunter (Gunter) <
> gunter.van_de_velde@alcatel-lucent.com> wrote:
>
>> Hi Robin,
>>
>> Thanks for your note.
>>
>> A tunnel is not always going over shortest path. Some tunnels are TE
>> tunnels and are deliberately not going over a shortest path. This is
>> something that draft-rosen-idr-tunnel-encaps-00 will not help to signal
>> because the tunnel-encap attribute indicates tunnel parameters used by t=
he
>> tail-end.
>>
>> If a redirect tunnel represents a particular redirect/steering service
>> (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then i=
t does
>> become rather complex for BGP as signalling technology because a tunnel
>> relationship is a unique between 'a headend' and =E2=80=98a tailed' devi=
ce. It
>> seems better to leave tunnel-setup to dedicated tunnel-setup mechanisms
>> like PCEP, SR, etc=E2=80=A6.
>>
>> The draft redirect-to-PATH_ID is providing the means to signal a
>> flow-based redirect/steering service, and have each recipient router
>> identify using local recursion for the PATH_IDs the corresponding
>> tunnels/redirect-info. This allows for tunnel setup complexity to be tak=
en
>> away from BGP, while at the same time BGP is doing what it is very good =
at
>> doing: "It signals a policy=E2=80=9D in reliable fashion.
>>
>> Kind Regards,
>> G/
>>
>>
>>
>> From:  Idr <idr-bounces@ietf.org> on behalf of Lizhenbin <
>> lizhenbin@huawei.com>
>> Date: Monday 26 October 2015 at 16:51
>> To: Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
>> Cc: "jgs@bgp.nu" <jgs@bgp.nu>
>> Subject: [Idr] Regarding
>> draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR int=
erim (10/26/2015)
>> 10:00am - 11:30am ET update
>>
>> Hi Gunter,
>>
>> Regarding your presentation, I have following comments:
>>
>> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel
>> setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic t=
o
>> the tunnel instead of signal tunnel setup.
>>
>> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the
>> draft make you confused? We just hope to  just reuses the attributes of =
to
>> specify the tunnel type to help steering
>>
>> the traffic to tunnel. If this is not a good way, maybe we can define ne=
w
>> attributes.
>>
>>
>>
>>
>>
>> Best Regards,
>>
>> Robin
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> *=E5=8F=91=E4=BB=B6=E4=BA=BA:* Idr [mailto:idr-bounces@ietf.org <idr-bou=
nces@ietf.org>] *=E4=BB=A3=E8=A1=A8 *Susan
>> Hares
>> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:* 2015=E5=B9=B410=E6=9C=8825=E6=97=
=A5 22:07
>> *=E6=94=B6=E4=BB=B6=E4=BA=BA:* idr@ietf.org
>> *=E6=8A=84=E9=80=81:* jgs@bgp.nu
>> *=E4=B8=BB=E9=A2=98:* [Idr] IDR interim (10/26/2015) 10:00am - 11:30am E=
T update
>>
>>
>>
>> IDR WG members:
>>
>>
>>
>> Below is an updated agenda for the IDR interim on 10/26/2015.
>>
>>
>>
>> Sue
>>
>>
>>
>> ------------
>>
>> IDR interim October 26, 2015
>>
>> 10:00 - 11:30am
>>
>>
>>
>> 1. Chair's slides [10:00-10:05]
>>
>>
>>
>> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>>
>>    speaker: Stephane Litowski
>>
>>    Time: 10:05-10:15
>>
>>
>> https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaces=
et/
>>
>>
>>
>> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>>
>>    Speaker: Weiguo Hao
>>
>>    Time: 10:15 - 10:25
>>
>>
>> http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/
>>
>>
>>
>>
>>
>> 3. draft-vandevelde-idr-flowspec-path-redirect
>>
>>    Speaker: Gunter Van De Velde
>>
>>    Time: 10:25- 10:35
>>
>>
>> http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redir=
ect/
>>
>>
>>
>>
>>
>> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02
>>
>>    Speaker: Weiguo Hao
>>
>>    Duration: 10:35-10:40
>>
>>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/
>>
>>
>>
>>
>>
>> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>>
>>    Speaker:
>>
>>    Duration: 10:40-10:45
>>
>>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/
>>
>>
>>
>> 6. draft-liang-idr-bgp-flowspec-time
>>
>>    presenter: Jianjie You
>>
>>    time: 10:45-10:55
>>
>>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/
>>
>>
>>
>> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>>
>>    Speaker: Zhenbin Li
>>
>>    Duration: 10:55-11:05
>>
>>    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/
>>
>>
>>
>> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>>
>>    Speaker: Shunwan Zhuang
>>
>>    Duration: 11:05 - 11:15
>>
>>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/
>>
>>
>>
>> 8.  Discussion of Flowspec drafts
>>
>>     11:15 - 11:30am
>>
>>
>>
>>  Meeting Web-ex information
>>
>>  Monday, October 26, 2015
>>
>> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs
>>
>>
>>
>> webex infor:
>>
>> https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff314=
3f
>>
>>
>>
>> Meeting number:            644 964 970
>>
>> Meeting password:         flow.in.nets
>>
>>
>>
>>
>>
>> Join by phone
>>
>> 1-877-668-4493 Call-in toll free number (US/Canada)
>>
>> 1-650-479-3208 Call-in toll number (US/Canada)
>>
>> Access code: 644 964 970
>>
>>
>>
>>
>>
>> _______________________________________________
>> Idr mailing list
>> Idr@ietf.org
>> https://www.ietf.org/mailman/listinfo/idr
>>
>>
>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small">Gunter,</div><div class=3D"gmail_defaul=
t" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></d=
iv><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-s=
erif;font-size:small">Sorry but I am afraid this does not work :(.=C2=A0</d=
iv><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-s=
erif;font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-=
family:arial,helvetica,sans-serif;font-size:small">BGP uses notion of impli=
cit withdraw for a given NLRI.=C2=A0</div><div class=3D"gmail_default" styl=
e=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div=
 class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;fo=
nt-size:small">So for particular flow NLRI I can advertise only single PATH=
_ID as subsequent NLRI with different PATH_ID will be treated as withdraw o=
f the former.=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:=
arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_d=
efault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">So=
 if indeed as you said &quot;..each PE the redirect tunnel will share the u=
nique PATH_ID ..&quot; that effectively means that for a given flow NLRI I =
can advertise redirect service to only one PE pretty much killing p2mp adva=
ntage of BGP and what&#39;s worse blocking from advertising the same flow N=
LRI with any different set of actions.=C2=A0</div><div class=3D"gmail_defau=
lt" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></=
div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-=
serif;font-size:small">Best,</div><div class=3D"gmail_default" style=3D"fon=
t-family:arial,helvetica,sans-serif;font-size:small">R.</div><div class=3D"=
gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:sm=
all"><br></div><div class=3D"gmail_default" style=3D"font-family:arial,helv=
etica,sans-serif;font-size:small"><br></div><div class=3D"gmail_default" st=
yle=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div></=
div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Mon, Oct 2=
6, 2015 at 6:15 PM, VAN DE VELDE, Gunter (Gunter) <span dir=3D"ltr">&lt;<a =
href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank">gu=
nter.van_de_velde@alcatel-lucent.com</a>&gt;</span> wrote:<br><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;=
padding-left:1ex">



<div style=3D"word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-fam=
ily:Calibri,sans-serif">
<div>
<div>Robert,</div>
<div><br>
</div>
<div>Yeah, BGP is indeed p2mp relationship=E2=80=A6 This is important to ke=
ep in mind, and that it is exactly why PATH-ID makes sense.</div>
<div><br>
</div>
<div>With 32-bit you have 2^32 and with 128-bit you have 2^128 unique ident=
ifiers. That is quite a lot and will serve redirect policies in most networ=
ks I would assume.</div>
<div><br>
</div>
<div>In manual setup it is simple for a single PE:</div>
<ul>
<li>Preconfigure the PE with a tunnel and map it to a given unique PATH_ID<=
/li><li>This tunnel now exists, however it is not used</li><li>=C2=A0Now th=
e controller (i.e. vRR) sends a flow spec rule to identify the traffic usin=
g this tunnel and steers traffic into this tunnel</li></ul>
<div>When you have multiple PE=E2=80=99s using a single redirect service:</=
div>
<ul>
<li>Same setup as above, but on each PE the redirect tunnel will share the =
unique PATH_ID reflecting the redirect tunnel service</li><li>(there is no =
relationship that the destination is the same=E2=80=A6 just the redirect se=
rvice is the same)</li></ul>
<div>When you have 5000 of these Redirect services planned:</div>
<ul>
<li>Manual config will make you go crazy very soon</li><li>The above can be=
 100% orchestrated or a mix of manual/orchestrated could be used</li></ul>
<div><br>
</div>
<div>The benefit of redirect-to-PATH_ID facilitates that network redirect s=
ervice it decoupled from the tunnel creation/characteristics. hence the set=
up of a mp2p tunnel is beyond the scope the path_ID redirect draft if that =
happens to be the redirect service
 you had in mind.</div>
<div><br>
</div>
<div>G/=C2=A0</div>
<div><br>
</div>
<div>
<div></div>
</div>
</div>
<div><br>
</div>
<span>
<div style=3D"font-family:Calibri;font-size:12pt;text-align:left;color:blac=
k;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADD=
ING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:me=
dium none;PADDING-TOP:3pt">
<span style=3D"font-weight:bold">From: </span>&lt;<a href=3D"mailto:rraszuk=
@gmail.com" target=3D"_blank">rraszuk@gmail.com</a>&gt; on behalf of Robert=
 Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_blank">robert@r=
aszuk.net</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday 26 October 2015 at 17:=
41<br>
<span style=3D"font-weight:bold">To: </span>Gunter Van de Velde &lt;<a href=
=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank">gunter=
.van_de_velde@alcatel-lucent.com</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>Lizhenbin &lt;<a href=3D"mailto=
:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;, Susa=
n Hares &lt;<a href=3D"mailto:shares@ndzh.com" target=3D"_blank">shares@ndz=
h.com</a>&gt;, &quot;<a href=3D"mailto:idr@ietf.org" target=3D"_blank">idr@=
ietf.org</a>&quot; &lt;<a href=3D"mailto:idr@ietf.org" target=3D"_blank">id=
r@ietf.org</a>&gt;,
 &quot;<a href=3D"mailto:jgs@bgp.nu" target=3D"_blank">jgs@bgp.nu</a>&quot;=
 &lt;<a href=3D"mailto:jgs@bgp.nu" target=3D"_blank">jgs@bgp.nu</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Idr] Regarding draft-=
vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR interim (10/=
26/2015) 10:00am - 11:30am ET update<br>
</div><div><div class=3D"h5">
<div><br>
</div>
<div>
<div>
<div dir=3D"ltr">
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Hi Gunter,</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Let&#39;s observe that BGP signalling is p2mp.=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Now let&#39;s also notice that as you correctly state TE tunnels are rather=
 custom crafted p2p entities.=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Then natural question comes to mind ...=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
How good does it serve to signal identical PATH_ID to all head ends for a g=
iven flow while what you need to do is to map it rather uniquely in the net=
work ?</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
While in theory one could construct number of mp2p TE forwarding graphs eac=
h with identical PATH_ID on a per flow basis I bet in practice this was not=
 the application you had in mind as its opex would be rather high as compar=
ed to real practical usefulness
 :)</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Side question ... How are you going to provision mp2p TE ? Are you going to=
 dust-off some proposals for it from the past ? Example:
<a href=3D"https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06" =
target=3D"_blank">https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvp=
te-06</a>=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Or was perhaps your plan to provision number of p2p TE tunnels from PCE/Con=
troller with the identical PATH_IDs ?=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Cheers,<br>
R.</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
</div>
<div class=3D"gmail_extra"><br>
<div class=3D"gmail_quote">On Mon, Oct 26, 2015 at 5:26 PM, VAN DE VELDE, G=
unter (Gunter)
<span dir=3D"ltr">&lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.=
com" target=3D"_blank">gunter.van_de_velde@alcatel-lucent.com</a>&gt;</span=
> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<div style=3D"word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-fam=
ily:Calibri,sans-serif">
<div>
<div>Hi Robin,</div>
<div><br>
</div>
<div>Thanks for your note.</div>
<div><br>
</div>
<div>A tunnel is not always going over shortest path. Some tunnels are TE t=
unnels and are deliberately not going over a shortest path. This is somethi=
ng that=C2=A0<span style=3D"color:rgb(31,73,125)">draft-rosen-idr-tunnel-en=
caps-00=C2=A0</span>will not help to signal
 because the tunnel-encap attribute indicates tunnel parameters used by the=
 tail-end.</div>
<div><br>
</div>
<div>If a redirect tunnel represents a particular redirect/steering service=
 (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then it =
does become rather complex for BGP as signalling technology because a tunne=
l relationship is a unique between &#39;a headend&#39;
 and =E2=80=98a tailed&#39; device. It seems better to leave tunnel-setup t=
o dedicated tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.</div>
<div><br>
</div>
<div>The draft redirect-to-PATH_ID is providing the means to signal a flow-=
based redirect/steering service, and have each recipient router identify us=
ing local recursion for the PATH_IDs the corresponding tunnels/redirect-inf=
o. This allows for tunnel setup
 complexity to be taken away from BGP, while at the same time BGP is doing =
what it is very good at doing: &quot;It signals a policy=E2=80=9D in reliab=
le fashion.</div>
</div>
<div><br>
</div>
<div>Kind Regards,</div>
<div>G/</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<span>
<div style=3D"font-family:Calibri;font-size:12pt;text-align:left;color:blac=
k;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADD=
ING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:me=
dium none;PADDING-TOP:3pt">
<span style=3D"font-weight:bold">From:=C2=A0</span> Idr &lt;<a href=3D"mail=
to:idr-bounces@ietf.org" target=3D"_blank">idr-bounces@ietf.org</a>&gt; on =
behalf of Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com" target=3D"_=
blank">lizhenbin@huawei.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday 26 October 2015 at 16:=
51<br>
<span style=3D"font-weight:bold">To: </span>Susan Hares &lt;<a href=3D"mail=
to:shares@ndzh.com" target=3D"_blank">shares@ndzh.com</a>&gt;, &quot;<a hre=
f=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</a>&quot; &lt;<a h=
ref=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:jgs@bgp=
.nu" target=3D"_blank">jgs@bgp.nu</a>&quot; &lt;<a href=3D"mailto:jgs@bgp.n=
u" target=3D"_blank">jgs@bgp.nu</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[Idr] Regarding draft-vand=
evelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR interim (10/26/2=
015) 10:00am - 11:30am ET update<br>
</div>
<div>
<div>
<div><br>
</div>
<div>
<div lang=3D"ZH-CN" link=3D"blue" vlink=3D"purple">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Hi Gunter,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Regarding your presentation, I have following comments:<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal t=
unnel setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffi=
c to the tunnel instead of signal tunnel
 setup. <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in=
 the draft make you confused? We just hope to =C2=A0just reuses the attribu=
tes of to specify the tunnel type to help steering
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">the traffic to tunnel. If this is not a good way, maybe we can de=
fine new attributes.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Best Regards,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Robin<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<div>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:=E5=
=AE=8B=E4=BD=93">=E5=8F=91=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></=
span></b><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:=E5=AE=
=8B=E4=BD=93"> Idr [<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blan=
k">mailto:idr-bounces@ietf.org</a>]
</span><b><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93">=
=E4=BB=A3=E8=A1=A8 </span></b><span lang=3D"EN-US" style=3D"font-size:10.0p=
t;font-family:=E5=AE=8B=E4=BD=93">Susan Hares<br>
</span><b><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93">=
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span lang=3D"EN-US">:</span></span></b=
><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=
=93"> 2015</span><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=
=BD=93">=E5=B9=B4<span lang=3D"EN-US">10</span>=E6=9C=88<span lang=3D"EN-US=
">25</span>=E6=97=A5<span lang=3D"EN-US">
 22:07<br>
</span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></b><span=
 lang=3D"EN-US"> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">
idr@ietf.org</a><br>
</span><b>=E6=8A=84=E9=80=81<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> <a href=3D"mailto:jgs@bgp.nu" target=3D"_blank">
jgs@bgp.nu</a><br>
</span><b>=E4=B8=BB=E9=A2=98<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET update<u></u><u=
></u></span></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">IDR WG members: <u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Below is an updated agenda for =
the IDR interim on 10/26/2015.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Sue <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">------------<u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">IDR interim October 26, 2015 <u=
></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">10:00 - 11:30am <u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">1. Chair&#39;s slides [10:00-10=
:05]<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">1. draft-litkowski-idr-flowspec=
-interfaceset-01.txt<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 speaker: Stephane =
Litowski=C2=A0 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0Time: 10:05-1=
0:15<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <a href=3D"https:/=
/datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/" targe=
t=3D"_blank">
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/=
</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">2. draft-hao-idr-flowspec-redir=
ect-tunnel-00<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Weiguo Ha=
o<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Time: 10:15 - 10:2=
5 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/" targ=
et=3D"_blank">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redire=
ct-tunnel/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<u></u><u></u=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">3. draft-vandevelde-idr-flowspe=
c-path-redirect<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Gunter Va=
n De Velde<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Time: 10:25- 10:35=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <a href=3D"http://=
datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect/" targ=
et=3D"_blank">
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect=
/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<u></u><u></u=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">4. Draft Name: draft-hao-idr-fl=
owspec-nvo3-02
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0Speaker: Weig=
uo Hao<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Duration: 10:35-10=
:40 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/" target=3D"_blan=
k">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a><u></u><=
u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">5. draft-liang-idr-bgp-flowspec=
-label-01.txt.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: <u></u><u=
></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0Duration: 10:=
40-10:45 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0<a href=3D"http://d=
atatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/" target=3D"_bla=
nk">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/</a>=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">6. draft-liang-idr-bgp-flowspec=
-time<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 presenter: Jianjie=
 You<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 time: 10:45-10:55<=
u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <a href=3D"http://=
datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/" target=3D"_bla=
nk">
http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/</a><u></=
u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">7. Draft Name: draft-li-idr-mpl=
s-path-programming-02<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Zhenbin L=
i<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Duration: 10:55-11=
:05 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/" target=
=3D"_blank">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">7. Draft Name: draft-li-idr-flo=
wspec-rpd-01<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Shunwan Z=
huang<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Duration: 11:05 - =
11:15 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/" target=3D"_blank"=
>http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/</a><u></u><u></=
u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">8.=C2=A0 Discussion of Flowspec=
 drafts<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0 11:15 - 11:3=
0am <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0Meeting Web-ex informatio=
n <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0Monday, October 26, 2015 =
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">10:00 am=C2=A0 |=C2=A0 Eastern =
Daylight Time (New York, GMT-04:00)=C2=A0 |=C2=A0 2 hrs
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<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
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ttps://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f</=
a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Meeting number: =C2=A0=C2=A0=C2=
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<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
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<p class=3D"MsoNormal"><span lang=3D"EN-US">Join by phone<u></u><u></u></sp=
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</blockquote></div><br></div>

--047d7b5d23e21b427c05230561a4--


From nobody Mon Oct 26 10:47:49 2015
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From: Gunter Van De Velde <guntervandeveldecc@icloud.com>
To: Robert Raszuk <robert@raszuk.net>
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Date: Mon, 26 Oct 2015 18:47:35 +0100
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Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiBJRFIgaW50ZXJpbSAoMTAvMjYvMjAxNSkgMTA6MDBh?= =?utf-8?q?m_-_11=3A30am_ET_update?=
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------sinikael-?=_1-14458816593080.14325668849051
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There is miscommunication somewhere.

Why do i wanna send another PATH_ID =
in a new NLRI? That does indeed do what you
indicate. However that is not =
the intention.

I see no difference as with traditional flowspec where =
redirect is to VRF or
even IP address... Its same situation there.

G/



Sent using CloudMagic Email
[https://cloudmagic.com/k/d/mailapp?=
ct=3Dpa&cv=3D7.4.10&pv=3D6.0&source=3Demail_footer_2] On Mon, Oct 26, 2015 =
at 6:35 PM, Robert Raszuk < robert@raszuk.net [robert@raszuk.net] > wrote:
Gunter,
Sorry but I am afraid this does not work :(.
BGP uses notion of implicit withdraw for a given NLRI.
So for particular flow NLRI I can advertise only single PATH_ID as =
subsequent
NLRI with different PATH_ID will be treated as withdraw of the =
former.
So if indeed as you said "..each PE the redirect tunnel will share =
the unique
PATH_ID .." that effectively means that for a given flow NLRI I =
can advertise
redirect service to only one PE pretty much killing p2mp =
advantage of BGP and
what's worse blocking from advertising the same flow =
NLRI with any different set
of actions.
Best, R.



On Mon, Oct 26, 2015 at 6:15 PM, VAN DE VELDE, Gunter (Gunter) < gunter.=
van_de_velde@alcatel-lucent.com [gunter.van_de_velde@alcatel-lucent.com] > =
wrote:
Robert,
Yeah, BGP is indeed p2mp relationship=E2=80=A6 This is =
important to keep in mind, and
that it is exactly why PATH-ID makes sense.
With 32-bit you have 2^32 and with 128-bit you have 2^128 unique =
identifiers.
That is quite a lot and will serve redirect policies in most =
networks I would
assume.
In manual setup it is simple for a single PE: * =
Preconfigure the PE with a tunnel and map it to a given unique PATH_ID
 * This tunnel now exists, however it is not used
 * Now the controller (i.=
e. vRR) sends a flow spec rule to identify the traffic
   using this tunnel and steers traffic into this tunnel

When you have multiple PE=E2=80=99s using a single redirect service: * Same=
 setup as above, but on each PE the redirect tunnel will share the unique
   PATH_ID reflecting the redirect tunnel service
 * (there is no =
relationship that the destination is the same=E2=80=A6 just the redirect
   service is the same)

When you have 5000 of these Redirect services =
planned: * Manual config will make you go crazy very soon
 * The above can be 100% orchestrated or a mix of manual/orchestrated could=
 be
   used


The benefit of redirect-to-PATH_ID facilitates that network =
redirect service it
decoupled from the tunnel creation/characteristics. =
hence the setup of a mp2p
tunnel is beyond the scope the path_ID redirect =
draft if that happens to be the
redirect service you had in mind.
G/

From: < rraszuk@gmail.com [rraszuk@gmail.com] > on behalf of Robert Raszuk =
< robert@raszuk.net [robert@raszuk.net] >
Date: Monday 26 October 2015 at =
17:41
To: Gunter Van de Velde < gunter.van_de_velde@alcatel-lucent.com =
[gunter.van_de_velde@alcatel-lucent.com] >
Cc: Lizhenbin < lizhenbin@huawei=
.com [lizhenbin@huawei.com] >, Susan Hares < shares@ndzh.com [shares@ndzh.=
com] >, " idr@ietf.org [idr@ietf.org] " < idr@ietf.org [idr@ietf.org] >, " =
jgs@bgp.nu [jgs@bgp.nu] " < jgs@bgp.nu [jgs@bgp.nu] >
Subject: Re: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//=
=E7=AD=94=E5=A4=8D: IDR
interim (10/26/2015) 10:00am - 11:30am ET update

Hi Gunter,
Let's observe that BGP signalling is p2mp.
Now let's also notice that as you correctly state TE tunnels are rather =
custom
crafted p2p entities.
Then natural question comes to mind ...
How good does it serve to signal identical PATH_ID to all head ends for a =
given
flow while what you need to do is to map it rather uniquely in the =
network ?
While in theory one could construct number of mp2p TE forwarding =
graphs each
with identical PATH_ID on a per flow basis I bet in practice =
this was not the
application you had in mind as its opex would be rather =
high as compared to real
practical usefulness :)
Side question ... How are =
you going to provision mp2p TE ? Are you going to
dust-off some proposals =
for it from the past ? Example: https://tools.ietf.org/html/draft-yasukawa-=
mpls-mp2p-rsvpte-06
[https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-r=
svpte-06]
Or was perhaps your plan to provision number of p2p TE tunnels =
from
PCE/Controller with the identical PATH_IDs ?
Cheers,
R.

On Mon, Oct 26, 2015 at 5:26 PM, VAN DE VELDE, Gunter (Gunter) < gunter.=
van_de_velde@alcatel-lucent.com [gunter.van_de_velde@alcatel-lucent.com] > =
wrote:
Hi Robin,
Thanks for your note.
A tunnel is not always going over =
shortest path. Some tunnels are TE tunnels and
are deliberately not going =
over a shortest path. This is something that draft-rosen-idr-tunnel-encaps-=
00 will not help to signal because the tunnel-encap attribute indicates =
tunnel
parameters used by the tail-end.
If a redirect tunnel represents a =
particular redirect/steering service (better
delay, less packet loss, =
non-SRLG, more BW, etc=E2=80=A6) then it does become rather
complex for BGP as signalling technology because a tunnel relationship is a
unique between 'a headend' and =E2=80=98a tailed' device. It seems better =
to leave
tunnel-setup to dedicated tunnel-setup mechanisms like PCEP, SR, =
etc=E2=80=A6.
The draft redirect-to-PATH_ID is providing the means to =
signal a flow-based
redirect/steering service, and have each recipient =
router identify using local
recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows
for tunnel setup complexity to be taken =
away from BGP, while at the same time
BGP is doing what it is very good at =
doing: "It signals a policy=E2=80=9D in reliable
fashion.
Kind Regards, G/


From: Idr < idr-bounces@ietf.org [idr-bounces@ietf.org] > on behalf of =
Lizhenbin < lizhenbin@huawei.com [lizhenbin@huawei.com] >
Date: Monday 26 October 2015 at 16:51
To: Susan Hares < shares@ndzh.com =
[shares@ndzh.com] >, " idr@ietf.org [idr@ietf.org] " < idr@ietf.org =
[idr@ietf.org] >
Cc: " jgs@bgp.nu [jgs@bgp.nu] " < jgs@bgp.nu [jgs@bgp.nu] =
>
Subject: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//=
=E7=AD=94=E5=A4=8D: IDR interim
(10/26/2015) 10:00am - 11:30am ET update

Hi Gunter,

Regarding your presentation, I have following comments:

Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel =
setup
info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic to =
the tunnel
instead of signal tunnel setup.

I am not sure if the reuse of =
draft-rosen-idr-tunnel-encaps-00 in the draft make
you confused? We just =
hope to just reuses the attributes of to specify the
tunnel type to help steering

the traffic to tunnel. If this is not a good =
way, maybe we can define new
attributes.





Best Regards,

Robin











=E5=8F=91=E4=BB=B6=E4=BA=BA : Idr [ mailto:idr-bounces@ietf.org =
[idr-bounces@ietf.org] ] =E4=BB=A3=E8=A1=A8 Susan Hares
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4 : 2015 =E5=B9=B4 10 =E6=9C=88 25 =
=E6=97=A5 22:07
=E6=94=B6=E4=BB=B6=E4=BA=BA : idr@ietf.org [idr@ietf.org]
=E6=8A=84=E9=80=81 : jgs@bgp.nu [jgs@bgp.nu]
=E4=B8=BB=E9=A2=98 : [Idr] IDR=
 interim (10/26/2015) 10:00am - 11:30am ET update



IDR WG members:



Below is an updated agenda for the IDR interim on 10/26/2015.



Sue



------------

IDR interim October 26, 2015

10:00 - 11:30am



1. Chair's slides [10:00-10:05]



1. draft-litkowski-idr-flowspec-interfac=
eset-01.txt

speaker: Stephane Litowski

Time: 10:05-10:15

https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/
[https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset=
/]



2. draft-hao-idr-flowspec-redirect-tunnel-00

Speaker: Weiguo Hao

Time: 10:15 - 10:25

http://datatracker.ietf.org/doc/draft-hao-idr-flowspec=
-redirect-tunnel/
[http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-r=
edirect-tunnel/]





3. draft-vandevelde-idr-flowspec-path-redirect

Speaker: Gunter Van De Velde

Time: 10:25- 10:35

http://datatracker.ietf.=
org/doc/draft-vandevelde-idr-flowspec-path-redirect/
[http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirec=
t/]





4. Draft Name: draft-hao-idr-flowspec-nvo3-02

Speaker: Weiguo Hao

Duration: 10:35-10:40

http://datatracker.ietf.org/doc/draft-hao-idr-flows=
pec-nvo3/
[http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/]





5. draft-liang-idr-bgp-flowspec-label-01.txt.

Speaker:

Duration: 10:40-10:45

http://datatracker.ietf.org/doc/draft-liang-idr-bgp-=
flowspec-label/
[http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowsp=
ec-label/]



6. draft-liang-idr-bgp-flowspec-time

presenter: Jianjie You

time: 10:45-10:55

http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flow=
spec-time/
[http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-ti=
me/]



7. Draft Name: draft-li-idr-mpls-path-programming-02

Speaker: Zhenbin Li

Duration: 10:55-11:05

http://datatracker.ietf.=
org/doc/draft-li-idr-mpls-path-programming/
[http://datatracker.ietf.=
org/doc/draft-li-idr-mpls-path-programming/]



7. Draft Name: =
draft-li-idr-flowspec-rpd-01

Speaker: Shunwan Zhuang

Duration: 11:05 - 11:15

http://datatracker.ietf.org/doc/draft-li-idr-flows=
pec-rpd/
[http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/]



8. Discussion of Flowspec drafts

11:15 - 11:30am



Meeting Web-ex information

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<p dir=3D"ltr">There is miscommunication somewhere.</p>
<p dir=3D"ltr">Why do i wanna send another PATH_ID in a new NLRI? That does=
 indeed do what you indicate. However that is not the intention.</p>
<p dir=3D"ltr">I see no difference as with traditional flowspec where =
redirect is to VRF or even IP address... Its same situation there. </p>
<p dir=3D"ltr">G/</p>
<div id=3D'cm_signature'> <br><br>Sent using <a =
href=3D"https://cloudmagic.com/k/d/mailapp?ct=3Dpa&amp;cv=3D7.4.=
10&amp;pv=3D6.0&amp;source=3Demail_footer_2">CloudMagic Email</a> =
</div><div class=3D"cm_quote" style=3D" color: #787878">On Mon, Oct 26, =
2015 at 6:35 PM, Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.=
net">robert@raszuk.net</a>&gt; wrote:</div><br><div id=3D"oldcontent" =
style=3D"background: rgb(255, 255, 255);"><blockquote style=3D""> <div =
dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,=
helvetica,sans-serif;font-size:small">Gunter,</div><div =
class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small"><br></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Sorry but =
I am afraid this does not work :(.&nbsp;</div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div>=
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">BGP uses notion of implicit withdraw for a =
given NLRI.&nbsp;</div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div>=
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">So for particular flow NLRI I can advertise =
only single PATH_ID as subsequent NLRI with different PATH_ID will be =
treated as withdraw of the former.&nbsp;</div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div>=
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">So if indeed as you said "..each PE the =
redirect tunnel will share the unique PATH_ID .." that effectively means =
that for a given flow NLRI I can advertise redirect service to only one PE =
pretty much killing p2mp advantage of BGP and what's worse blocking from =
advertising the same flow NLRI with any different set of actions.=
&nbsp;</div><div class=3D"gmail_default" style=3D"font-family:arial,=
helvetica,sans-serif;font-size:small"><br></div><div =
class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">Best,</div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">R.=
</div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small"><br></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div>=
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small"><br></div></div><div class=3D"gmail_extra"><br>=
<div class=3D"gmail_quote">On Mon, Oct 26, 2015 at 6:15 PM, VAN DE VELDE, =
Gunter (Gunter) <span dir=3D"ltr">&lt;<a href=3D"mailto:gunter.=
van_de_velde@alcatel-lucent.com">gunter.van_de_velde@alcatel-lucent.=
com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" =
style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">



<div style=3D"word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-fam=
ily:Calibri,sans-serif">
<div>
<div>Robert,</div>
<div><br>
</div>
<div>Yeah, BGP is indeed p2mp relationship=E2=80=A6 This is important to =
keep in mind, and that it is exactly why PATH-ID makes sense.</div>
<div><br>
</div>
<div>With 32-bit you have 2^32 and with 128-bit you have =
2^128 unique identifiers. That is quite a lot and will serve redirect =
policies in most networks I would assume.</div>
<div><br>
</div>
<div>In manual setup it is simple for a single PE:</div>
<ul>
<li>Preconfigure the PE with a tunnel and map it to a given unique =
PATH_ID</li><li>This tunnel now exists, however it is not =
used</li><li>&nbsp;Now the controller (i.e. vRR) sends a flow spec rule to =
identify the traffic using this tunnel and steers traffic into this =
tunnel</li></ul>
<div>When you have multiple PE=E2=80=99s using a single =
redirect service:</div>
<ul>
<li>Same setup as above, but on each PE the =
redirect tunnel will share the unique PATH_ID reflecting the redirect =
tunnel service</li><li>(there is no relationship that the destination is =
the same=E2=80=A6 just the redirect service is the same)</li></ul>
<div>When you have 5000 of these Redirect services planned:</div>
<ul>
<li>Manual config will make you go crazy very soon</li><li>The above can be=
 100% orchestrated or a mix of manual/orchestrated could be used</li></ul>
<div><br>
</div>
<div>The benefit of redirect-to-PATH_ID facilitates that =
network redirect service it decoupled from the tunnel =
creation/characteristics. hence the setup of a mp2p tunnel is beyond the =
scope the path_ID redirect draft if that happens to be the redirect service
 you had in mind.</div>
<div><br>
</div>
<div>G/&nbsp;</div>
<div><br>
</div>
<div>
<div></div>
</div>
</div>
<div><br>
</div>
<span>
<div style=3D"font-family:Calibri;font-size:12pt;text-align:left;color:blac=
k;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADD=
ING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt =
solid;BORDER-RIGHT:medium none;PADDING-TOP:3pt">
<span =
style=3D"font-weight:bold">From: </span>&lt;<a href=3D"mailto:rraszuk@gmail=
.com">rraszuk@gmail.com</a>&gt; on behalf of Robert Raszuk &lt;<a =
href=3D"mailto:robert@raszuk.net">robert@raszuk.net</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday 26 October 2015 at =
17:41<br>
<span style=3D"font-weight:bold">To: </span>Gunter Van de Velde =
&lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com">gunter.=
van_de_velde@alcatel-lucent.com</a>&gt;<br>
<span style=3D"font-weight:bold=
">Cc: </span>Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.=
com">lizhenbin@huawei.com</a>&gt;, Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com">shares@ndzh.com</a>&gt;, "<a =
href=3D"mailto:idr@ietf.org">idr@ietf.org</a>" &lt;<a =
href=3D"mailto:idr@ietf.org">idr@ietf.org</a>&gt;,
 "<a =
href=3D"mailto:jgs@bgp.nu">jgs@bgp.nu</a>" &lt;<a href=3D"mailto:jgs@bgp.=
nu">jgs@bgp.nu</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: =
</span>Re: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//=
=E7=AD=94=E5=A4=8D: IDR interim (10/26/2015) 10:00am - 11:30am ET =
update<br>
</div><div><div class=3D"h5">
<div><br>
</div>
<div>
<div>
<div dir=3D"ltr">
<div class=3D"gmail_default" style=3D"font-family:arial,=
helvetica,sans-serif;font-size:small">
Hi Gunter,</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">
<br>
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Let's observe that BGP signalling is p2mp.&nbsp;</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">
<br>
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Now let's also notice that as you correctly state TE tunnels are rather =
custom crafted p2p entities.&nbsp;</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">
Then natural question comes to mind ...=
&nbsp;</div>
<div class=3D"gmail_default" style=3D"font-family:arial,=
helvetica,sans-serif;font-size:small">
<br>
</div>
<div =
class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">
How good does it serve to signal identical =
PATH_ID to all head ends for a given flow while what you need to do is to =
map it rather uniquely in the network ?</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">
While in theory one could construct number of =
mp2p TE forwarding graphs each with identical PATH_ID on a per flow basis I=
 bet in practice this was not the application you had in mind as its opex =
would be rather high as compared to real practical usefulness
 :)</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">
<br>
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Side question ... How are you going to provision mp2p TE ? Are you going to=
 dust-off some proposals for it from the past ? Example:
<a href=3D"https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06">=
https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06</a>&nbsp;</d=
iv>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">
<br>
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Or was perhaps your plan to provision number of p2p TE tunnels from =
PCE/Controller with the identical PATH_IDs ?&nbsp;</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">
<br>
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Cheers,<br>
R.</div>
<div class=3D"gmail_default" style=3D"font-family:aria=
l,helvetica,sans-serif;font-size:small">
<br>
</div>
</div>
<div class=3D"gmail_extra"><br>
<div class=3D"gmail_quote">On Mon, Oct 26, =
2015 at 5:26 PM, VAN DE VELDE, Gunter (Gunter)
<span dir=3D"ltr">&lt;<a =
href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com">gunter.=
van_de_velde@alcatel-lucent.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .=
8ex;border-left:1px #ccc solid;padding-left:1ex">
<div =
style=3D"word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-family:C=
alibri,sans-serif">
<div>
<div>Hi Robin,</div>
<div><br>
</div>
<div>Thanks for your note.</div>
<div><br>
</div>
<div>A tunnel is not =
always going over shortest path. Some tunnels are TE tunnels and are =
deliberately not going over a shortest path. This is something =
that&nbsp;<span style=3D"color:rgb(31,73,125)">draft-rosen-idr-tunnel-encap=
s-00&nbsp;</span>will not help to signal
 because the tunnel-encap =
attribute indicates tunnel parameters used by the tail-end.</div>
<div><br>
</div>
<div>If a redirect tunnel represents a particular redirect/steering =
service (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) =
then it does become rather complex for BGP as signalling technology because=
 a tunnel relationship is a unique between 'a headend'
 and =E2=80=98a tailed' device. It seems better to leave tunnel-setup to =
dedicated tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.</div>
<div><br>
</div>
<div>The draft redirect-to-PATH_ID is providing the means =
to signal a flow-based redirect/steering service, and have each recipient =
router identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup
 complexity to be taken away from BGP, while at the same time BGP is doing =
what it is very good at doing: "It signals a policy=E2=80=9D in reliable =
fashion.</div>
</div>
<div><br>
</div>
<div>Kind Regards,</div>
<div>G/</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<span>
<div style=3D"font-family:Calibri;font-size:12pt;text-align:left;color:blac=
k;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADD=
ING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt =
solid;BORDER-RIGHT:medium none;PADDING-TOP:3pt">
<span =
style=3D"font-weight:bold">From:&nbsp;</span> Idr &lt;<a =
href=3D"mailto:idr-bounces@ietf.org">idr-bounces@ietf.org</a>&gt; on behalf=
 of Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com">lizhenbin@huawei.=
com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday 26 =
October 2015 at 16:51<br>
<span style=3D"font-weight:bold">To: </span>Susan=
 Hares &lt;<a href=3D"mailto:shares@ndzh.com">shares@ndzh.com</a>&gt;, "<a =
href=3D"mailto:idr@ietf.org">idr@ietf.org</a>" &lt;<a =
href=3D"mailto:idr@ietf.org">idr@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>"<a href=3D"mailto:jgs@bgp.=
nu">jgs@bgp.nu</a>" &lt;<a href=3D"mailto:jgs@bgp.nu">jgs@bgp.=
nu</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[Idr] =
Regarding draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: =
IDR interim (10/26/2015) 10:00am - 11:30am ET update<br>
</div>
<div>
<div>
<div><br>
</div>
<div>
<div lang=3D"ZH-CN">
<div>
<p =
class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.=
5pt;color:#1f497d">Hi Gunter,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.=
5pt;color:#1f497d">Regarding your presentation, I have following =
comments:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d">Do you mean =
draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel setup info? =
draft-hao-idr-flowspec-redirect-tunnel is to steer traffic to the tunnel =
instead of signal tunnel
 setup. <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.=
5pt;color:#1f497d">I am not sure if the reuse of draft-rosen-idr-tunnel-enc=
aps-00 in the draft make you confused? We just hope to &nbsp;just reuses =
the attributes of to specify the tunnel type to help steering
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d">the traffic to tunnel. If this is =
not a good way, maybe we can define new attributes.<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.=
5pt;color:#1f497d"><u></u>&nbsp;<u></u></span></p>
<p =
class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.=
5pt;color:#1f497d"><u></u>&nbsp;<u></u></span></p>
<p =
class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.=
5pt;color:#1f497d">Best Regards,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.=
5pt;color:#1f497d">Robin<u></u><u></u></span></p>
<p =
class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.=
5pt;color:#1f497d"><u></u>&nbsp;<u></u></span></p>
<p =
class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.=
5pt;color:#1f497d"><u></u>&nbsp;<u></u></span></p>
<p =
class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.=
5pt;color:#1f497d"><u></u>&nbsp;<u></u></span></p>
<p =
class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.=
5pt;color:#1f497d"><u></u>&nbsp;<u></u></span></p>
<p =
class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.=
5pt;color:#1f497d"><u></u>&nbsp;<u></u></span></p>
<div>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.=
0pt;font-family:=E5=AE=8B=E4=BD=93">=E5=8F=91=E4=BB=B6=E4=BA=BA<span =
lang=3D"EN-US">:</span></span></b><span lang=3D"EN-US" =
style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93"> Idr [<a =
href=3D"mailto:idr-bounces@ietf.org">mailto:idr-bounces@ietf.org</a>]
</span><b><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93">=
=E4=BB=A3=E8=A1=A8 </span></b><span lang=3D"EN-US" style=3D"font-size:10.=
0pt;font-family:=E5=AE=8B=E4=BD=93">Susan Hares<br>
</span><b><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93">=
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span lang=3D"EN-US">:</span></span></b=
><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:=E5=AE=8B=
=E4=BD=93"> 2015</span><span style=3D"font-size:10.0pt;font-family:=
=E5=AE=8B=E4=BD=93">=E5=B9=B4<span lang=3D"EN-US">10</span>=E6=9C=88<span =
lang=3D"EN-US">25</span>=E6=97=A5<span lang=3D"EN-US">
 22:07<br>
</span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></b><span=
 lang=3D"EN-US"> <a href=3D"mailto:idr@ietf.org">
idr@ietf.org</a><br>
</span><b>=E6=8A=84=E9=80=81<span lang=3D"EN-US">:</span></b><span =
lang=3D"EN-US"> <a href=3D"mailto:jgs@bgp.nu">
jgs@bgp.nu</a><br>
</span><b>=E4=B8=BB=E9=A2=98<span lang=3D"EN-US">:</span></b><span =
lang=3D"EN-US"> [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET =
update<u></u><u></u></span></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">IDR WG members: =
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span=
 lang=3D"EN-US">Below is an updated agenda for the IDR interim on =
10/26/2015.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span=
 lang=3D"EN-US">Sue <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span=
 lang=3D"EN-US">------------<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">IDR interim October 26, 2015 =
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">10:00=
 - 11:30am <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span=
 lang=3D"EN-US">1. Chair's slides [10:00-10:05]<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">1. draft-litkowski-idr-flowspec=
-interfaceset-01.txt<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp; speaker: Stephane Litowski&nbsp; =
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp;&nbsp;Time: 10:05-10:15<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; <a =
href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-inter=
faceset/">
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-in=
terfaceset/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp; <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">2. draft-hao-idr-flowspec-redir=
ect-tunnel-00<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp; Speaker: Weiguo Hao<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Time: 10:15 - =
10:25 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp;&nbsp;<a href=3D"http://datatracker.ietf.=
org/doc/draft-hao-idr-flowspec-redirect-tunnel/">http://datatracker.ietf.=
org/doc/draft-hao-idr-flowspec-redirect-tunnel/</a><u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; =
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp;&nbsp;<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">3. draft-vandevelde-idr-flowspe=
c-path-redirect<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp; Speaker: Gunter Van De Velde<u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Time: =
10:25- 10:35<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp; <a href=3D"http://datatracker.ietf.=
org/doc/draft-vandevelde-idr-flowspec-path-redirect/">
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect=
/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp; <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;<u></u><u></u=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">4. Draft Name: =
draft-hao-idr-flowspec-nvo3-02
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;Speaker: =
Weiguo Hao<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp; Duration: 10:35-10:40 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/">http:=
//datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a><u></u><u></u></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; =
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span=
 lang=3D"EN-US">5. draft-liang-idr-bgp-flowspec-label-01.txt.=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp; Speaker: <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;Duration: =
10:40-10:45 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp;<a href=3D"http://datatracker.ietf.=
org/doc/draft-liang-idr-bgp-flowspec-label/">http://datatracker.ietf.=
org/doc/draft-liang-idr-bgp-flowspec-label/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; =
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">6. =
draft-liang-idr-bgp-flowspec-time<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; presenter: Jianjie=
 You<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp; time: 10:45-10:55<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; <a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/"=
>
http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/</a><u>=
</u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span=
 lang=3D"EN-US">7. Draft Name: draft-li-idr-mpls-path-programming-02<u></u>=
<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;=
 Speaker: Zhenbin Li<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp; Duration: 10:55-11:05 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/=
">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/</a><u=
></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span=
 lang=3D"EN-US">7. Draft Name: draft-li-idr-flowspec-rpd-01<u></u><u></u></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Speaker:=
 Shunwan Zhuang<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp; Duration: 11:05 - 11:15 =
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;&nbsp;&nbsp;<a href=3D"http://datatracker.ietf.=
org/doc/draft-li-idr-flowspec-rpd/">http://datatracker.ietf.=
org/doc/draft-li-idr-flowspec-rpd/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; =
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">8.=
&nbsp; Discussion of Flowspec drafts<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp; 11:15 - =
11:30am <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">&nbsp;<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span=
 lang=3D"EN-US">&nbsp;Meeting Web-ex information <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;Monday, October 26, 2015 =
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">10:00=
 am&nbsp; |&nbsp; Eastern Daylight Time (New York, GMT-04:00)&nbsp; |&nbsp;=
 2 hrs
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span=
 lang=3D"EN-US">webex infor: <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://ietf.webex.=
com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f">https://ietf.webex=
.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f</a><u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>&nbsp;<u></u>=
</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Meeting number: =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 964 970 =
<u>
</u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">Meeting password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp; flow.in.nets<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span=
 lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><spa=
n lang=3D"EN-US">Join by phone<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"tel:1-877-668-4493">=
1-877-668-4493</a> Call-in toll free number (US/Canada)<u></u><u></u></span=
></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a =
href=3D"tel:1-650-479-3208">1-650-479-3208</a> Call-in toll number =
(US/Canada)<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span =
lang=3D"EN-US">Access code: 644 964 970<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>&nbsp;<u></u></span></p>
</div>
</div>
</div>
</div>
</div>
</span></div>
<br>
_______________________________________________<br>
Idr mailing list<br>
<a href=3D"mailto:Idr@ietf.org">Idr@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" =
rel=3D"noreferrer">https://www.ietf.org/mailman/listinfo/idr</a><br>
<br>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</div></div></span>
</div>

</blockquote></div><br></div>
</blockquote></div>
------sinikael-?=_1-14458816593080.14325668849051--


From nobody Mon Oct 26 11:49:18 2015
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From: Lucy yong <lucy.yong@huawei.com>
To: "VAN DE VELDE, Gunter (Gunter)" <gunter.van_de_velde@alcatel-lucent.com>,  Lizhenbin <lizhenbin@huawei.com>, Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
Thread-Topic: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//??:  IDR interim (10/26/2015) 10:00am - 11:30am ET update
Thread-Index: AQHREAlwO8s6ONBcQEeQ1uTwpaWSm55+a1CA//+quBA=
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Subject: Re: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//??: IDR interim (10/26/2015) 10:00am - 11:30am ET update
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--_000_2691CE0099834E4A9C5044EEC662BB9D57200661dfweml701chm_--


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> I see no difference as with traditional flowspec where
> redirect is to VRF or even IP address... Its same situation
> there.

I don't think it is same situation.

Redirect to VRF provides local indirection. VRF can be the same on all PEs
where you map redirected data to whatever you like.

Redirect to IP also is very different as the IP address typically
represents a single point (or anycast point) of processing device for all
redirected flows from all PEs.

The draft in the subject however as you have also explained targets to
provide mapping to unique per PE PATH_IDs for the same flow.

Perhaps you can illustrate on example how flowspec update coming from PE1
via RR can influence for a given NLRI matching traffic to take different
PATH-IDs on PE2 and PE3.

Cheers,
r.




On Mon, Oct 26, 2015 at 6:47 PM, Gunter Van De Velde <
guntervandeveldecc@icloud.com> wrote:

> There is miscommunication somewhere.
>
> Why do i wanna send another PATH_ID in a new NLRI? That does indeed do
> what you indicate. However that is not the intention.
>
> I see no difference as with traditional flowspec where redirect is to VRF
> or even IP address... Its same situation there.
>
> G/
>
>
> Sent using CloudMagic Email
> <https://cloudmagic.com/k/d/mailapp?ct=3Dpa&cv=3D7.4.10&pv=3D6.0&source=
=3Demail_footer_2>
> On Mon, Oct 26, 2015 at 6:35 PM, Robert Raszuk <robert@raszuk.net> wrote:
>
> Gunter,
>
> Sorry but I am afraid this does not work :(.
>
> BGP uses notion of implicit withdraw for a given NLRI.
>
> So for particular flow NLRI I can advertise only single PATH_ID as
> subsequent NLRI with different PATH_ID will be treated as withdraw of the
> former.
>
> So if indeed as you said "..each PE the redirect tunnel will share the
> unique PATH_ID .." that effectively means that for a given flow NLRI I ca=
n
> advertise redirect service to only one PE pretty much killing p2mp
> advantage of BGP and what's worse blocking from advertising the same flow
> NLRI with any different set of actions.
>
> Best,
> R.
>
>
>
>
> On Mon, Oct 26, 2015 at 6:15 PM, VAN DE VELDE, Gunter (Gunter) <
> gunter.van_de_velde@alcatel-lucent.com> wrote:
>
>> Robert,
>>
>> Yeah, BGP is indeed p2mp relationship=E2=80=A6 This is important to keep=
 in mind,
>> and that it is exactly why PATH-ID makes sense.
>>
>> With 32-bit you have 2^32 and with 128-bit you have 2^128 unique
>> identifiers. That is quite a lot and will serve redirect policies in mos=
t
>> networks I would assume.
>>
>> In manual setup it is simple for a single PE:
>>
>>    - Preconfigure the PE with a tunnel and map it to a given unique
>>    PATH_ID
>>    - This tunnel now exists, however it is not used
>>    -  Now the controller (i.e. vRR) sends a flow spec rule to identify
>>    the traffic using this tunnel and steers traffic into this tunnel
>>
>> When you have multiple PE=E2=80=99s using a single redirect service:
>>
>>    - Same setup as above, but on each PE the redirect tunnel will share
>>    the unique PATH_ID reflecting the redirect tunnel service
>>    - (there is no relationship that the destination is the same=E2=80=A6=
 just
>>    the redirect service is the same)
>>
>> When you have 5000 of these Redirect services planned:
>>
>>    - Manual config will make you go crazy very soon
>>    - The above can be 100% orchestrated or a mix of manual/orchestrated
>>    could be used
>>
>>
>> The benefit of redirect-to-PATH_ID facilitates that network redirect
>> service it decoupled from the tunnel creation/characteristics. hence the
>> setup of a mp2p tunnel is beyond the scope the path_ID redirect draft if
>> that happens to be the redirect service you had in mind.
>>
>> G/
>>
>>
>> From: <rraszuk@gmail.com> on behalf of Robert Raszuk <robert@raszuk.net>
>> Date: Monday 26 October 2015 at 17:41
>> To: Gunter Van de Velde <gunter.van_de_velde@alcatel-lucent.com>
>> Cc: Lizhenbin <lizhenbin@huawei.com>, Susan Hares <shares@ndzh.com>, "
>> idr@ietf.org" <idr@ietf.org>, "jgs@bgp.nu" <jgs@bgp.nu>
>> Subject: Re: [Idr] Regarding
>> draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR int=
erim (10/26/2015)
>> 10:00am - 11:30am ET update
>>
>> Hi Gunter,
>>
>> Let's observe that BGP signalling is p2mp.
>>
>> Now let's also notice that as you correctly state TE tunnels are rather
>> custom crafted p2p entities.
>>
>> Then natural question comes to mind ...
>>
>> How good does it serve to signal identical PATH_ID to all head ends for =
a
>> given flow while what you need to do is to map it rather uniquely in the
>> network ?
>>
>> While in theory one could construct number of mp2p TE forwarding graphs
>> each with identical PATH_ID on a per flow basis I bet in practice this w=
as
>> not the application you had in mind as its opex would be rather high as
>> compared to real practical usefulness :)
>>
>> Side question ... How are you going to provision mp2p TE ? Are you going
>> to dust-off some proposals for it from the past ? Example:
>> https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06
>>
>> Or was perhaps your plan to provision number of p2p TE tunnels from
>> PCE/Controller with the identical PATH_IDs ?
>>
>> Cheers,
>> R.
>>
>>
>> On Mon, Oct 26, 2015 at 5:26 PM, VAN DE VELDE, Gunter (Gunter) <
>> gunter.van_de_velde@alcatel-lucent.com> wrote:
>>
>>> Hi Robin,
>>>
>>> Thanks for your note.
>>>
>>> A tunnel is not always going over shortest path. Some tunnels are TE
>>> tunnels and are deliberately not going over a shortest path. This is
>>> something that draft-rosen-idr-tunnel-encaps-00 will not help to signal
>>> because the tunnel-encap attribute indicates tunnel parameters used by =
the
>>> tail-end.
>>>
>>> If a redirect tunnel represents a particular redirect/steering service
>>> (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then =
it does
>>> become rather complex for BGP as signalling technology because a tunnel
>>> relationship is a unique between 'a headend' and =E2=80=98a tailed' dev=
ice. It
>>> seems better to leave tunnel-setup to dedicated tunnel-setup mechanisms
>>> like PCEP, SR, etc=E2=80=A6.
>>>
>>> The draft redirect-to-PATH_ID is providing the means to signal a
>>> flow-based redirect/steering service, and have each recipient router
>>> identify using local recursion for the PATH_IDs the corresponding
>>> tunnels/redirect-info. This allows for tunnel setup complexity to be ta=
ken
>>> away from BGP, while at the same time BGP is doing what it is very good=
 at
>>> doing: "It signals a policy=E2=80=9D in reliable fashion.
>>>
>>> Kind Regards,
>>> G/
>>>
>>>
>>>
>>> From:  Idr <idr-bounces@ietf.org> on behalf of Lizhenbin <
>>> lizhenbin@huawei.com>
>>> Date: Monday 26 October 2015 at 16:51
>>> To: Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
>>> Cc: "jgs@bgp.nu" <jgs@bgp.nu>
>>> Subject: [Idr] Regarding
>>> draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR in=
terim (10/26/2015)
>>> 10:00am - 11:30am ET update
>>>
>>> Hi Gunter,
>>>
>>> Regarding your presentation, I have following comments:
>>>
>>> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel
>>> setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic =
to
>>> the tunnel instead of signal tunnel setup.
>>>
>>> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the
>>> draft make you confused? We just hope to  just reuses the attributes of=
 to
>>> specify the tunnel type to help steering
>>>
>>> the traffic to tunnel. If this is not a good way, maybe we can define
>>> new attributes.
>>>
>>>
>>>
>>>
>>>
>>> Best Regards,
>>>
>>> Robin
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> *=E5=8F=91=E4=BB=B6=E4=BA=BA:* Idr [mailto:idr-bounces@ietf.org <idr-bo=
unces@ietf.org>] *=E4=BB=A3=E8=A1=A8 *Susan
>>> Hares
>>> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:* 2015=E5=B9=B410=E6=9C=8825=E6=
=97=A5 22:07
>>> *=E6=94=B6=E4=BB=B6=E4=BA=BA:* idr@ietf.org
>>> *=E6=8A=84=E9=80=81:* jgs@bgp.nu
>>> *=E4=B8=BB=E9=A2=98:* [Idr] IDR interim (10/26/2015) 10:00am - 11:30am =
ET update
>>>
>>>
>>>
>>> IDR WG members:
>>>
>>>
>>>
>>> Below is an updated agenda for the IDR interim on 10/26/2015.
>>>
>>>
>>>
>>> Sue
>>>
>>>
>>>
>>> ------------
>>>
>>> IDR interim October 26, 2015
>>>
>>> 10:00 - 11:30am
>>>
>>>
>>>
>>> 1. Chair's slides [10:00-10:05]
>>>
>>>
>>>
>>> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>>>
>>>    speaker: Stephane Litowski
>>>
>>>    Time: 10:05-10:15
>>>
>>>
>>> https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interface=
set/
>>>
>>>
>>>
>>> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>>>
>>>    Speaker: Weiguo Hao
>>>
>>>    Time: 10:15 - 10:25
>>>
>>>
>>> http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/
>>>
>>>
>>>
>>>
>>>
>>> 3. draft-vandevelde-idr-flowspec-path-redirect
>>>
>>>    Speaker: Gunter Van De Velde
>>>
>>>    Time: 10:25- 10:35
>>>
>>>
>>> http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redi=
rect/
>>>
>>>
>>>
>>>
>>>
>>> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02
>>>
>>>    Speaker: Weiguo Hao
>>>
>>>    Duration: 10:35-10:40
>>>
>>>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/
>>>
>>>
>>>
>>>
>>>
>>> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>>>
>>>    Speaker:
>>>
>>>    Duration: 10:40-10:45
>>>
>>>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/
>>>
>>>
>>>
>>> 6. draft-liang-idr-bgp-flowspec-time
>>>
>>>    presenter: Jianjie You
>>>
>>>    time: 10:45-10:55
>>>
>>>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/
>>>
>>>
>>>
>>> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>>>
>>>    Speaker: Zhenbin Li
>>>
>>>    Duration: 10:55-11:05
>>>
>>>    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/
>>>
>>>
>>>
>>> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>>>
>>>    Speaker: Shunwan Zhuang
>>>
>>>    Duration: 11:05 - 11:15
>>>
>>>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/
>>>
>>>
>>>
>>> 8.  Discussion of Flowspec drafts
>>>
>>>     11:15 - 11:30am
>>>
>>>
>>>
>>>  Meeting Web-ex information
>>>
>>>  Monday, October 26, 2015
>>>
>>> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs
>>>
>>>
>>>
>>> webex infor:
>>>
>>> https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff31=
43f
>>>
>>>
>>>
>>> Meeting number:            644 964 970
>>>
>>> Meeting password:         flow.in.nets
>>>
>>>
>>>
>>>
>>>
>>> Join by phone
>>>
>>> 1-877-668-4493 Call-in toll free number (US/Canada)
>>>
>>> 1-650-479-3208 Call-in toll number (US/Canada)
>>>
>>> Access code: 644 964 970
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Idr mailing list
>>> Idr@ietf.org
>>> https://www.ietf.org/mailman/listinfo/idr
>>>
>>>
>>
>

--f46d043c7d802856d0052306b87f
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small"><span style=3D"font-family:arial,sans-s=
erif;font-size:12.8px">&gt; I see no difference as with traditional flowspe=
c where=C2=A0</span></div><div class=3D"gmail_default" style=3D"font-family=
:arial,helvetica,sans-serif;font-size:small"><span style=3D"font-family:ari=
al,sans-serif;font-size:12.8px">&gt; redirect is to VRF or even IP address.=
.. Its same situation=C2=A0</span></div><div class=3D"gmail_default" style=
=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span style=3D"=
font-family:arial,sans-serif;font-size:12.8px">&gt; there.</span><br></div>=
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small"><span style=3D"font-family:arial,sans-serif;font-size:12=
.8px"><br></span></div><div class=3D"gmail_default" style=3D"font-family:ar=
ial,helvetica,sans-serif;font-size:small"><span style=3D"font-family:arial,=
sans-serif;font-size:12.8px">I don&#39;t think it is same situation.=C2=A0<=
/span></div><div class=3D"gmail_default" style=3D"font-family:arial,helveti=
ca,sans-serif;font-size:small"><span style=3D"font-family:arial,sans-serif;=
font-size:12.8px"><br></span></div><div class=3D"gmail_default" style=3D"fo=
nt-family:arial,helvetica,sans-serif;font-size:small"><span style=3D"font-f=
amily:arial,sans-serif;font-size:12.8px">Redirect to VRF provides local ind=
irection. VRF can be the same on all PEs where you map redirected data to w=
hatever you like.=C2=A0</span></div><div class=3D"gmail_default" style=3D"f=
ont-family:arial,helvetica,sans-serif;font-size:small"><span style=3D"font-=
family:arial,sans-serif;font-size:12.8px"><br></span></div><div class=3D"gm=
ail_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:smal=
l"><span style=3D"font-family:arial,sans-serif;font-size:12.8px">Redirect t=
o IP also is very different as the IP address typically represents a single=
 point (or anycast point) of processing device for all redirected flows fro=
m all PEs.=C2=A0</span></div><div class=3D"gmail_default" style=3D"font-fam=
ily:arial,helvetica,sans-serif;font-size:small"><span style=3D"font-family:=
arial,sans-serif;font-size:12.8px"><br></span></div><div class=3D"gmail_def=
ault"><span style=3D"font-size:12.8px">The draft in the subject however as =
you have also explained targets to provide mapping to unique per PE PATH_ID=
s for the same flow.=C2=A0</span></div><div class=3D"gmail_default"><span s=
tyle=3D"font-size:12.8px"><br></span></div><div class=3D"gmail_default"><sp=
an style=3D"font-size:12.8px">Perhaps you can illustrate on example how flo=
wspec update coming from PE1 via RR can influence for a given NLRI matching=
 traffic to take different PATH-IDs on PE2 and PE3.=C2=A0</span></div><div =
class=3D"gmail_default"><span style=3D"font-size:12.8px"><br></span></div><=
div class=3D"gmail_default"><span style=3D"font-size:12.8px">Cheers,<br>r.<=
/span></div><div class=3D"gmail_default"><span style=3D"font-size:12.8px"><=
br></span></div><div class=3D"gmail_default"><span style=3D"font-size:12.8p=
x"><br></span></div><div class=3D"gmail_default"><span style=3D"font-size:1=
2.8px"><br></span></div></div><div class=3D"gmail_extra"><br><div class=3D"=
gmail_quote">On Mon, Oct 26, 2015 at 6:47 PM, Gunter Van De Velde <span dir=
=3D"ltr">&lt;<a href=3D"mailto:guntervandeveldecc@icloud.com" target=3D"_bl=
ank">guntervandeveldecc@icloud.com</a>&gt;</span> wrote:<br><blockquote cla=
ss=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;pa=
dding-left:1ex"><p dir=3D"ltr">There is miscommunication somewhere.</p>
<p dir=3D"ltr">Why do i wanna send another PATH_ID in a new NLRI? That does=
 indeed do what you indicate. However that is not the intention.</p>
<p dir=3D"ltr">I see no difference as with traditional flowspec where redir=
ect is to VRF or even IP address... Its same situation there. </p>
<p dir=3D"ltr">G/</p>
<div> <br><br>Sent using <a href=3D"https://cloudmagic.com/k/d/mailapp?ct=
=3Dpa&amp;cv=3D7.4.10&amp;pv=3D6.0&amp;source=3Demail_footer_2" target=3D"_=
blank">CloudMagic Email</a> </div><div class=3D"HOEnZb"><div class=3D"h5"><=
div style=3D"color:#787878">On Mon, Oct 26, 2015 at 6:35 PM, Robert Raszuk =
&lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_blank">robert@raszuk.ne=
t</a>&gt; wrote:</div><br><div style=3D"background:rgb(255,255,255)"><block=
quote> <div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:a=
rial,helvetica,sans-serif;font-size:small">Gunter,</div><div class=3D"gmail=
_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">=
<br></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica=
,sans-serif;font-size:small">Sorry but I am afraid this does not work :(.=
=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:arial,helveti=
ca,sans-serif;font-size:small"><br></div><div class=3D"gmail_default" style=
=3D"font-family:arial,helvetica,sans-serif;font-size:small">BGP uses notion=
 of implicit withdraw for a given NLRI.=C2=A0</div><div class=3D"gmail_defa=
ult" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br><=
/div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans=
-serif;font-size:small">So for particular flow NLRI I can advertise only si=
ngle PATH_ID as subsequent NLRI with different PATH_ID will be treated as w=
ithdraw of the former.=C2=A0</div><div class=3D"gmail_default" style=3D"fon=
t-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class=
=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-siz=
e:small">So if indeed as you said &quot;..each PE the redirect tunnel will =
share the unique PATH_ID ..&quot; that effectively means that for a given f=
low NLRI I can advertise redirect service to only one PE pretty much killin=
g p2mp advantage of BGP and what&#39;s worse blocking from advertising the =
same flow NLRI with any different set of actions.=C2=A0</div><div class=3D"=
gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:sm=
all"><br></div><div class=3D"gmail_default" style=3D"font-family:arial,helv=
etica,sans-serif;font-size:small">Best,</div><div class=3D"gmail_default" s=
tyle=3D"font-family:arial,helvetica,sans-serif;font-size:small">R.</div><di=
v class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;f=
ont-size:small"><br></div><div class=3D"gmail_default" style=3D"font-family=
:arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_=
default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><=
br></div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On=
 Mon, Oct 26, 2015 at 6:15 PM, VAN DE VELDE, Gunter (Gunter) <span dir=3D"l=
tr">&lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D=
"_blank">gunter.van_de_velde@alcatel-lucent.com</a>&gt;</span> wrote:<br><b=
lockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px =
#ccc solid;padding-left:1ex">



<div style=3D"word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-fam=
ily:Calibri,sans-serif">
<div>
<div>Robert,</div>
<div><br>
</div>
<div>Yeah, BGP is indeed p2mp relationship=E2=80=A6 This is important to ke=
ep in mind, and that it is exactly why PATH-ID makes sense.</div>
<div><br>
</div>
<div>With 32-bit you have 2^32 and with 128-bit you have 2^128 unique ident=
ifiers. That is quite a lot and will serve redirect policies in most networ=
ks I would assume.</div>
<div><br>
</div>
<div>In manual setup it is simple for a single PE:</div>
<ul>
<li>Preconfigure the PE with a tunnel and map it to a given unique PATH_ID<=
/li><li>This tunnel now exists, however it is not used</li><li>=C2=A0Now th=
e controller (i.e. vRR) sends a flow spec rule to identify the traffic usin=
g this tunnel and steers traffic into this tunnel</li></ul>
<div>When you have multiple PE=E2=80=99s using a single redirect service:</=
div>
<ul>
<li>Same setup as above, but on each PE the redirect tunnel will share the =
unique PATH_ID reflecting the redirect tunnel service</li><li>(there is no =
relationship that the destination is the same=E2=80=A6 just the redirect se=
rvice is the same)</li></ul>
<div>When you have 5000 of these Redirect services planned:</div>
<ul>
<li>Manual config will make you go crazy very soon</li><li>The above can be=
 100% orchestrated or a mix of manual/orchestrated could be used</li></ul>
<div><br>
</div>
<div>The benefit of redirect-to-PATH_ID facilitates that network redirect s=
ervice it decoupled from the tunnel creation/characteristics. hence the set=
up of a mp2p tunnel is beyond the scope the path_ID redirect draft if that =
happens to be the redirect service
 you had in mind.</div>
<div><br>
</div>
<div>G/=C2=A0</div>
<div><br>
</div>
<div>
<div></div>
</div>
</div>
<div><br>
</div>
<span>
<div style=3D"font-family:Calibri;font-size:12pt;text-align:left;color:blac=
k;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADD=
ING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:me=
dium none;PADDING-TOP:3pt">
<span style=3D"font-weight:bold">From: </span>&lt;<a href=3D"mailto:rraszuk=
@gmail.com" target=3D"_blank">rraszuk@gmail.com</a>&gt; on behalf of Robert=
 Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_blank">robert@r=
aszuk.net</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday 26 October 2015 at 17:=
41<br>
<span style=3D"font-weight:bold">To: </span>Gunter Van de Velde &lt;<a href=
=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank">gunter=
.van_de_velde@alcatel-lucent.com</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>Lizhenbin &lt;<a href=3D"mailto=
:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;, Susa=
n Hares &lt;<a href=3D"mailto:shares@ndzh.com" target=3D"_blank">shares@ndz=
h.com</a>&gt;, &quot;<a href=3D"mailto:idr@ietf.org" target=3D"_blank">idr@=
ietf.org</a>&quot; &lt;<a href=3D"mailto:idr@ietf.org" target=3D"_blank">id=
r@ietf.org</a>&gt;,
 &quot;<a href=3D"mailto:jgs@bgp.nu" target=3D"_blank">jgs@bgp.nu</a>&quot;=
 &lt;<a href=3D"mailto:jgs@bgp.nu" target=3D"_blank">jgs@bgp.nu</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Idr] Regarding draft-=
vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR interim (10/=
26/2015) 10:00am - 11:30am ET update<br>
</div><div><div>
<div><br>
</div>
<div>
<div>
<div dir=3D"ltr">
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Hi Gunter,</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Let&#39;s observe that BGP signalling is p2mp.=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Now let&#39;s also notice that as you correctly state TE tunnels are rather=
 custom crafted p2p entities.=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Then natural question comes to mind ...=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
How good does it serve to signal identical PATH_ID to all head ends for a g=
iven flow while what you need to do is to map it rather uniquely in the net=
work ?</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
While in theory one could construct number of mp2p TE forwarding graphs eac=
h with identical PATH_ID on a per flow basis I bet in practice this was not=
 the application you had in mind as its opex would be rather high as compar=
ed to real practical usefulness
 :)</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Side question ... How are you going to provision mp2p TE ? Are you going to=
 dust-off some proposals for it from the past ? Example:
<a href=3D"https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06" =
target=3D"_blank">https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvp=
te-06</a>=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Or was perhaps your plan to provision number of p2p TE tunnels from PCE/Con=
troller with the identical PATH_IDs ?=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Cheers,<br>
R.</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
</div>
<div class=3D"gmail_extra"><br>
<div class=3D"gmail_quote">On Mon, Oct 26, 2015 at 5:26 PM, VAN DE VELDE, G=
unter (Gunter)
<span dir=3D"ltr">&lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.=
com" target=3D"_blank">gunter.van_de_velde@alcatel-lucent.com</a>&gt;</span=
> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<div style=3D"word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-fam=
ily:Calibri,sans-serif">
<div>
<div>Hi Robin,</div>
<div><br>
</div>
<div>Thanks for your note.</div>
<div><br>
</div>
<div>A tunnel is not always going over shortest path. Some tunnels are TE t=
unnels and are deliberately not going over a shortest path. This is somethi=
ng that=C2=A0<span style=3D"color:rgb(31,73,125)">draft-rosen-idr-tunnel-en=
caps-00=C2=A0</span>will not help to signal
 because the tunnel-encap attribute indicates tunnel parameters used by the=
 tail-end.</div>
<div><br>
</div>
<div>If a redirect tunnel represents a particular redirect/steering service=
 (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then it =
does become rather complex for BGP as signalling technology because a tunne=
l relationship is a unique between &#39;a headend&#39;
 and =E2=80=98a tailed&#39; device. It seems better to leave tunnel-setup t=
o dedicated tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.</div>
<div><br>
</div>
<div>The draft redirect-to-PATH_ID is providing the means to signal a flow-=
based redirect/steering service, and have each recipient router identify us=
ing local recursion for the PATH_IDs the corresponding tunnels/redirect-inf=
o. This allows for tunnel setup
 complexity to be taken away from BGP, while at the same time BGP is doing =
what it is very good at doing: &quot;It signals a policy=E2=80=9D in reliab=
le fashion.</div>
</div>
<div><br>
</div>
<div>Kind Regards,</div>
<div>G/</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<span>
<div style=3D"font-family:Calibri;font-size:12pt;text-align:left;color:blac=
k;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADD=
ING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:me=
dium none;PADDING-TOP:3pt">
<span style=3D"font-weight:bold">From:=C2=A0</span> Idr &lt;<a href=3D"mail=
to:idr-bounces@ietf.org" target=3D"_blank">idr-bounces@ietf.org</a>&gt; on =
behalf of Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com" target=3D"_=
blank">lizhenbin@huawei.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday 26 October 2015 at 16:=
51<br>
<span style=3D"font-weight:bold">To: </span>Susan Hares &lt;<a href=3D"mail=
to:shares@ndzh.com" target=3D"_blank">shares@ndzh.com</a>&gt;, &quot;<a hre=
f=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</a>&quot; &lt;<a h=
ref=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:jgs@bgp=
.nu" target=3D"_blank">jgs@bgp.nu</a>&quot; &lt;<a href=3D"mailto:jgs@bgp.n=
u" target=3D"_blank">jgs@bgp.nu</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[Idr] Regarding draft-vand=
evelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR interim (10/26/2=
015) 10:00am - 11:30am ET update<br>
</div>
<div>
<div>
<div><br>
</div>
<div>
<div lang=3D"ZH-CN">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Hi Gunter,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Regarding your presentation, I have following comments:<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal t=
unnel setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffi=
c to the tunnel instead of signal tunnel
 setup. <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in=
 the draft make you confused? We just hope to =C2=A0just reuses the attribu=
tes of to specify the tunnel type to help steering
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">the traffic to tunnel. If this is not a good way, maybe we can de=
fine new attributes.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Best Regards,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d">Robin<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1f497d"><u></u>=C2=A0<u></u></span></p>
<div>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:=E5=
=AE=8B=E4=BD=93">=E5=8F=91=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></=
span></b><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:=E5=AE=
=8B=E4=BD=93"> Idr [<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blan=
k">mailto:idr-bounces@ietf.org</a>]
</span><b><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93">=
=E4=BB=A3=E8=A1=A8 </span></b><span lang=3D"EN-US" style=3D"font-size:10.0p=
t;font-family:=E5=AE=8B=E4=BD=93">Susan Hares<br>
</span><b><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93">=
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span lang=3D"EN-US">:</span></span></b=
><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=
=93"> 2015</span><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=
=BD=93">=E5=B9=B4<span lang=3D"EN-US">10</span>=E6=9C=88<span lang=3D"EN-US=
">25</span>=E6=97=A5<span lang=3D"EN-US">
 22:07<br>
</span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></b><span=
 lang=3D"EN-US"> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">
idr@ietf.org</a><br>
</span><b>=E6=8A=84=E9=80=81<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> <a href=3D"mailto:jgs@bgp.nu" target=3D"_blank">
jgs@bgp.nu</a><br>
</span><b>=E4=B8=BB=E9=A2=98<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET update<u></u><u=
></u></span></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">IDR WG members: <u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Below is an updated agenda for =
the IDR interim on 10/26/2015.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Sue <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">------------<u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">IDR interim October 26, 2015 <u=
></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">10:00 - 11:30am <u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">1. Chair&#39;s slides [10:00-10=
:05]<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">1. draft-litkowski-idr-flowspec=
-interfaceset-01.txt<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 speaker: Stephane =
Litowski=C2=A0 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0Time: 10:05-1=
0:15<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <a href=3D"https:/=
/datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/" targe=
t=3D"_blank">
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/=
</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">2. draft-hao-idr-flowspec-redir=
ect-tunnel-00<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Weiguo Ha=
o<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Time: 10:15 - 10:2=
5 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/" targ=
et=3D"_blank">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redire=
ct-tunnel/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<u></u><u></u=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">3. draft-vandevelde-idr-flowspe=
c-path-redirect<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Gunter Va=
n De Velde<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Time: 10:25- 10:35=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <a href=3D"http://=
datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect/" targ=
et=3D"_blank">
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect=
/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<u></u><u></u=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">4. Draft Name: draft-hao-idr-fl=
owspec-nvo3-02
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0Speaker: Weig=
uo Hao<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Duration: 10:35-10=
:40 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/" target=3D"_blan=
k">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a><u></u><=
u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">5. draft-liang-idr-bgp-flowspec=
-label-01.txt.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: <u></u><u=
></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0Duration: 10:=
40-10:45 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0<a href=3D"http://d=
atatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/" target=3D"_bla=
nk">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/</a>=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">6. draft-liang-idr-bgp-flowspec=
-time<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 presenter: Jianjie=
 You<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 time: 10:45-10:55<=
u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <a href=3D"http://=
datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/" target=3D"_bla=
nk">
http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/</a><u></=
u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">7. Draft Name: draft-li-idr-mpl=
s-path-programming-02<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Zhenbin L=
i<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Duration: 10:55-11=
:05 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/" target=
=3D"_blank">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">7. Draft Name: draft-li-idr-flo=
wspec-rpd-01<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Shunwan Z=
huang<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Duration: 11:05 - =
11:15 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/" target=3D"_blank"=
>http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/</a><u></u><u></=
u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">8.=C2=A0 Discussion of Flowspec=
 drafts<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0 11:15 - 11:3=
0am <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0Meeting Web-ex informatio=
n <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0Monday, October 26, 2015 =
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">10:00 am=C2=A0 |=C2=A0 Eastern =
Daylight Time (New York, GMT-04:00)=C2=A0 |=C2=A0 2 hrs
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">webex infor: <u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://ietf.webex.c=
om/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f" target=3D"_blank">h=
ttps://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f</=
a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Meeting number: =C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 644 964 970 <u>
</u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Meeting password:=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 flow.in.nets<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Join by phone<u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"tel:1-877-668-4493" =
target=3D"_blank">1-877-668-4493</a> Call-in toll free number (US/Canada)<u=
></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"tel:1-650-479-3208" =
target=3D"_blank">1-650-479-3208</a> Call-in toll number (US/Canada)<u></u>=
<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Access code: 644 964 970<u></u>=
<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
</div>
</div>
</div>
</div>
</span></div>
<br>
_______________________________________________<br>
Idr mailing list<br>
<a href=3D"mailto:Idr@ietf.org" target=3D"_blank">Idr@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" rel=3D"noreferrer" ta=
rget=3D"_blank">https://www.ietf.org/mailman/listinfo/idr</a><br>
<br>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</div></div></span>
</div>

</blockquote></div><br></div>
</blockquote></div></div></div></blockquote></div><br></div>

--f46d043c7d802856d0052306b87f--


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From: Gunter Van De Velde <guntervandeveldecc@icloud.com>
In-reply-to: <CA+b+ERm8PaptB-ZYPWT8M-hhUkABR_h2SQQXZQWVXCOHDVBsPA@mail.gmail.com>
Date: Mon, 26 Oct 2015 20:33:20 +0100
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References: <009b01d10f2e$5cc28820$16479860$@ndzh.com> <5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5C638@nkgeml506-mbx.china.huawei.com> <4D6BC339-51BE-4F90-8858-9B81859858F0@alcatel-lucent.com> <CA+b+ERnU_sXmxzoEj9M=V+6_izqO2ZBTgS0QCJ0HF1h6qqXL-A@mail.gmail.com> <2F377A27-8529-416E-A3E8-BF2B3B6C9C50@alcatel-lucent.com> <CA+b+ERmnkajGwDSEDcPwMXj_QqCwAHydRgDe=Oyg+otpDTqY5A@mail.gmail.com> <1445881659836-b092aa37-9aa8905c-fae8f9db@icloud.com> <CA+b+ERm8PaptB-ZYPWT8M-hhUkABR_h2SQQXZQWVXCOHDVBsPA@mail.gmail.com>
To: Robert Raszuk <robert@raszuk.net>
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Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiBJRFIgaW50ZXJpbSAoMTAvMjYvMjAxNSkgMTA6MDBh?= =?utf-8?q?m_-_11=3A30am_ET_update?=
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Ah=E2=80=A6 i think i see where the misunderstanding came from=E2=80=A6

Assume:
Flowspec rule 1 =3D [MATCH1] & [redirect_to_PATH_ID1]

PATH_ID1 =3D redirect identifier to redirect_service_1

Redirect service has localised meaning:
On PE1 the localised mapping of PATH_ID1 goes to Tunnel 1
On PE2 the localised mapping of PATH_ID1 goes to Tunnel 2
Hence PATH_ID provides localised indirection, just like in the VRF =
case=E2=80=A6=20
(the mapping of PATH_ID to the tunnel is done by a localised PATH_ID =
indexed table)

i.e. look at an extreme use-case example: assume a VRF has only a single =
route (0/0) then the PATH_ID could=20
seen as this VRF=E2=80=A6. it would result in exactly the same =
forwarding compared to using VRF redirect=20
or PATH_ID redirect in this extreme case=E2=80=A6=20


G/




> On 26 Oct 2015, at 20:10, Robert Raszuk <robert@raszuk.net> wrote:
>=20
> > I see no difference as with traditional flowspec where=20
> > redirect is to VRF or even IP address... Its same situation=20
> > there.
>=20
> I don't think it is same situation.=20
>=20
> Redirect to VRF provides local indirection. VRF can be the same on all =
PEs where you map redirected data to whatever you like.=20
>=20
> Redirect to IP also is very different as the IP address typically =
represents a single point (or anycast point) of processing device for =
all redirected flows from all PEs.=20
>=20
> The draft in the subject however as you have also explained targets to =
provide mapping to unique per PE PATH_IDs for the same flow.=20
>=20
> Perhaps you can illustrate on example how flowspec update coming from =
PE1 via RR can influence for a given NLRI matching traffic to take =
different PATH-IDs on PE2 and PE3.=20
>=20
> Cheers,
> r.
>=20
>=20
>=20
>=20
> On Mon, Oct 26, 2015 at 6:47 PM, Gunter Van De Velde =
<guntervandeveldecc@icloud.com <mailto:guntervandeveldecc@icloud.com>> =
wrote:
> There is miscommunication somewhere.
>=20
> Why do i wanna send another PATH_ID in a new NLRI? That does indeed do =
what you indicate. However that is not the intention.
>=20
> I see no difference as with traditional flowspec where redirect is to =
VRF or even IP address... Its same situation there.
>=20
> G/
>=20
>=20
>=20
> Sent using CloudMagic Email =
<https://cloudmagic.com/k/d/mailapp?ct=3Dpa&cv=3D7.4.10&pv=3D6.0&source=3D=
email_footer_2>
> On Mon, Oct 26, 2015 at 6:35 PM, Robert Raszuk <robert@raszuk.net =
<mailto:robert@raszuk.net>> wrote:
>=20
> Gunter,
>=20
> Sorry but I am afraid this does not work :(.=20
>=20
> BGP uses notion of implicit withdraw for a given NLRI.=20
>=20
> So for particular flow NLRI I can advertise only single PATH_ID as =
subsequent NLRI with different PATH_ID will be treated as withdraw of =
the former.=20
>=20
> So if indeed as you said "..each PE the redirect tunnel will share the =
unique PATH_ID .." that effectively means that for a given flow NLRI I =
can advertise redirect service to only one PE pretty much killing p2mp =
advantage of BGP and what's worse blocking from advertising the same =
flow NLRI with any different set of actions.=20
>=20
> Best,
> R.
>=20
>=20
>=20
>=20
> On Mon, Oct 26, 2015 at 6:15 PM, VAN DE VELDE, Gunter (Gunter) =
<gunter.van_de_velde@alcatel-lucent.com =
<mailto:gunter.van_de_velde@alcatel-lucent.com>> wrote:
> Robert,
>=20
> Yeah, BGP is indeed p2mp relationship=E2=80=A6 This is important to =
keep in mind, and that it is exactly why PATH-ID makes sense.
>=20
> With 32-bit you have 2^32 and with 128-bit you have 2^128 unique =
identifiers. That is quite a lot and will serve redirect policies in =
most networks I would assume.
>=20
> In manual setup it is simple for a single PE:
> Preconfigure the PE with a tunnel and map it to a given unique PATH_ID
> This tunnel now exists, however it is not used
>  Now the controller (i.e. vRR) sends a flow spec rule to identify the =
traffic using this tunnel and steers traffic into this tunnel
> When you have multiple PE=E2=80=99s using a single redirect service:
> Same setup as above, but on each PE the redirect tunnel will share the =
unique PATH_ID reflecting the redirect tunnel service
> (there is no relationship that the destination is the same=E2=80=A6 =
just the redirect service is the same)
> When you have 5000 of these Redirect services planned:
> Manual config will make you go crazy very soon
> The above can be 100% orchestrated or a mix of manual/orchestrated =
could be used
>=20
> The benefit of redirect-to-PATH_ID facilitates that network redirect =
service it decoupled from the tunnel creation/characteristics. hence the =
setup of a mp2p tunnel is beyond the scope the path_ID redirect draft if =
that happens to be the redirect service you had in mind.
>=20
> G/=20
>=20
>=20
> From: <rraszuk@gmail.com <mailto:rraszuk@gmail.com>> on behalf of =
Robert Raszuk <robert@raszuk.net <mailto:robert@raszuk.net>>
> Date: Monday 26 October 2015 at 17:41
> To: Gunter Van de Velde <gunter.van_de_velde@alcatel-lucent.com =
<mailto:gunter.van_de_velde@alcatel-lucent.com>>
> Cc: Lizhenbin <lizhenbin@huawei.com <mailto:lizhenbin@huawei.com>>, =
Susan Hares <shares@ndzh.com <mailto:shares@ndzh.com>>, "idr@ietf.org =
<mailto:idr@ietf.org>" <idr@ietf.org <mailto:idr@ietf.org>>, "jgs@bgp.nu =
<mailto:jgs@bgp.nu>" <jgs@bgp.nu <mailto:jgs@bgp.nu>>
> Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
>=20
> Hi Gunter,
>=20
> Let's observe that BGP signalling is p2mp.=20
>=20
> Now let's also notice that as you correctly state TE tunnels are =
rather custom crafted p2p entities.=20
>=20
> Then natural question comes to mind ...=20
>=20
> How good does it serve to signal identical PATH_ID to all head ends =
for a given flow while what you need to do is to map it rather uniquely =
in the network ?
>=20
> While in theory one could construct number of mp2p TE forwarding =
graphs each with identical PATH_ID on a per flow basis I bet in practice =
this was not the application you had in mind as its opex would be rather =
high as compared to real practical usefulness :)
>=20
> Side question ... How are you going to provision mp2p TE ? Are you =
going to dust-off some proposals for it from the past ? Example: =
https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06 =
<https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06>=20
>=20
> Or was perhaps your plan to provision number of p2p TE tunnels from =
PCE/Controller with the identical PATH_IDs ?=20
>=20
> Cheers,
> R.
>=20
>=20
> On Mon, Oct 26, 2015 at 5:26 PM, VAN DE VELDE, Gunter (Gunter) =
<gunter.van_de_velde@alcatel-lucent.com =
<mailto:gunter.van_de_velde@alcatel-lucent.com>> wrote:
> Hi Robin,
>=20
> Thanks for your note.
>=20
> A tunnel is not always going over shortest path. Some tunnels are TE =
tunnels and are deliberately not going over a shortest path. This is =
something that draft-rosen-idr-tunnel-encaps-00 will not help to signal =
because the tunnel-encap attribute indicates tunnel parameters used by =
the tail-end.
>=20
> If a redirect tunnel represents a particular redirect/steering service =
(better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then =
it does become rather complex for BGP as signalling technology because a =
tunnel relationship is a unique between 'a headend' and =E2=80=98a =
tailed' device. It seems better to leave tunnel-setup to dedicated =
tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.
>=20
> The draft redirect-to-PATH_ID is providing the means to signal a =
flow-based redirect/steering service, and have each recipient router =
identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable fashion.
>=20
> Kind Regards,
> G/
>=20
>=20
>=20
> From:  Idr <idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>> on =
behalf of Lizhenbin <lizhenbin@huawei.com <mailto:lizhenbin@huawei.com>>
> Date: Monday 26 October 2015 at 16:51
> To: Susan Hares <shares@ndzh.com <mailto:shares@ndzh.com>>, =
"idr@ietf.org <mailto:idr@ietf.org>" <idr@ietf.org =
<mailto:idr@ietf.org>>
> Cc: "jgs@bgp.nu <mailto:jgs@bgp.nu>" <jgs@bgp.nu <mailto:jgs@bgp.nu>>
> Subject: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
>=20
> Hi Gunter,
>=20
> Regarding your presentation, I have following comments:
>=20
> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel =
setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic =
to the tunnel instead of signal tunnel setup.=20
>=20
> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the =
draft make you confused? We just hope to  just reuses the attributes of =
to specify the tunnel type to help steering=20
>=20
> the traffic to tunnel. If this is not a good way, maybe we can define =
new attributes.
>=20
> =20
>=20
> =20
>=20
> Best Regards,
>=20
> Robin
>=20
> =20
>=20
> =20
>=20
> =20
>=20
> =20
>=20
> =20
>=20
> =E5=8F=91=E4=BB=B6=E4=BA=BA: Idr [mailto:idr-bounces@ietf.org =
<mailto:idr-bounces@ietf.org>] =E4=BB=A3=E8=A1=A8 Susan Hares
> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8825=E6=97=A5=
 22:07
> =E6=94=B6=E4=BB=B6=E4=BA=BA: idr@ietf.org <mailto:idr@ietf.org>
> =E6=8A=84=E9=80=81: jgs@bgp.nu <mailto:jgs@bgp.nu>
> =E4=B8=BB=E9=A2=98: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am =
ET update
>=20
> =20
>=20
> IDR WG members:
>=20
> =20
>=20
> Below is an updated agenda for the IDR interim on 10/26/2015.
>=20
> =20
>=20
> Sue
>=20
> =20
>=20
> ------------
>=20
> IDR interim October 26, 2015
>=20
> 10:00 - 11:30am
>=20
> =20
>=20
> 1. Chair's slides [10:00-10:05]
>=20
> =20
>=20
> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>=20
>    speaker: Stephane Litowski=20
>=20
>    Time: 10:05-10:15
>=20
>    =
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset=
/ =
<https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/>
>  =20
>=20
> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>=20
>    Speaker: Weiguo Hao
>=20
>    Time: 10:15 - 10:25
>=20
>    =
http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/>
>  =20
>=20
>   =20
>=20
> 3. draft-vandevelde-idr-flowspec-path-redirect
>=20
>    Speaker: Gunter Van De Velde
>=20
>    Time: 10:25- 10:35
>=20
>    =
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirec=
t/ =
<http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/>
>  =20
>=20
>   =20
>=20
> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02
>=20
>    Speaker: Weiguo Hao
>=20
>    Duration: 10:35-10:40
>=20
>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/>
>  =20
>=20
> =20
>=20
> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>=20
>    Speaker:
>=20
>    Duration: 10:40-10:45
>=20
>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/>
>  =20
>=20
> 6. draft-liang-idr-bgp-flowspec-time
>=20
>    presenter: Jianjie You
>=20
>    time: 10:45-10:55
>=20
>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/>
> =20
>=20
> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>=20
>    Speaker: Zhenbin Li
>=20
>    Duration: 10:55-11:05
>=20
>    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/ =
<http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/>
> =20
>=20
> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>=20
>    Speaker: Shunwan Zhuang
>=20
>    Duration: 11:05 - 11:15
>=20
>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/ =
<http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/>
>  =20
>=20
> 8.  Discussion of Flowspec drafts
>=20
>     11:15 - 11:30am
>=20
> =20
>=20
>  Meeting Web-ex information
>=20
>  Monday, October 26, 2015
>=20
> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs
>=20
> =20
>=20
> webex infor:
>=20
> =
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<https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f>
> =20
>=20
> Meeting number:            644 964 970
>=20
> Meeting password:         flow.in.nets
>=20
> =20
>=20
> =20
>=20
> Join by phone
>=20
> 1-877-668-4493 <tel:1-877-668-4493> Call-in toll free number =
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> 1-650-479-3208 <tel:1-650-479-3208> Call-in toll number (US/Canada)
>=20
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>=20
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><div class=3D"">Ah=E2=80=A6 i think i see where the =
misunderstanding came from=E2=80=A6</div><div class=3D""><br =
class=3D""></div><div class=3D"">Assume:</div><div class=3D"">Flowspec =
rule 1 =3D [MATCH1] &amp; [redirect_to_PATH_ID1]</div><div class=3D""><br =
class=3D""></div><div class=3D"">PATH_ID1 =3D redirect identifier to =
redirect_service_1</div><div class=3D""><br class=3D""></div><div =
class=3D"">Redirect service has localised meaning:</div><div class=3D"">On=
 PE1 the localised mapping of PATH_ID1 goes to Tunnel 1</div><div =
class=3D"">On PE2 the localised mapping of PATH_ID1 goes to Tunnel =
2</div><div class=3D"">Hence PATH_ID provides localised indirection, =
just like in the VRF case=E2=80=A6&nbsp;</div><div class=3D"">(the =
mapping of PATH_ID to the tunnel is done by a localised PATH_ID indexed =
table)</div><div class=3D""><br class=3D""></div><div class=3D"">i.e. =
look at an extreme use-case example: assume a VRF has only a single =
route (0/0) then the PATH_ID could&nbsp;</div><div class=3D"">seen as =
this VRF=E2=80=A6. it would result in exactly the same forwarding =
compared to using VRF redirect&nbsp;</div><div class=3D"">or PATH_ID =
redirect in this extreme case=E2=80=A6&nbsp;</div><div class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""></div><div =
class=3D"">G/</div><div class=3D""><br class=3D""></div><div =
class=3D""><br class=3D""></div><div class=3D""><br class=3D""></div><br =
class=3D""><div><blockquote type=3D"cite" class=3D""><div class=3D"">On =
26 Oct 2015, at 20:10, Robert Raszuk &lt;<a =
href=3D"mailto:robert@raszuk.net" class=3D"">robert@raszuk.net</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><div =
dir=3D"ltr" class=3D""><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D"">&gt; =
I see no difference as with traditional flowspec =
where&nbsp;</span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D"">&gt; =
redirect is to VRF or even IP address... Its same =
situation&nbsp;</span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D"">&gt; =
there.</span><br class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><br =
class=3D""></span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D"">I =
don't think it is same situation.&nbsp;</span></div><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><br =
class=3D""></span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" =
class=3D"">Redirect to VRF provides local indirection. VRF can be the =
same on all PEs where you map redirected data to whatever you =
like.&nbsp;</span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><br =
class=3D""></span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" =
class=3D"">Redirect to IP also is very different as the IP address =
typically represents a single point (or anycast point) of processing =
device for all redirected flows from all PEs.&nbsp;</span></div><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><br =
class=3D""></span></div><div class=3D"gmail_default"><span =
style=3D"font-size:12.8px" class=3D"">The draft in the subject however =
as you have also explained targets to provide mapping to unique per PE =
PATH_IDs for the same flow.&nbsp;</span></div><div =
class=3D"gmail_default"><span style=3D"font-size:12.8px" class=3D""><br =
class=3D""></span></div><div class=3D"gmail_default"><span =
style=3D"font-size:12.8px" class=3D"">Perhaps you can illustrate on =
example how flowspec update coming from PE1 via RR can influence for a =
given NLRI matching traffic to take different PATH-IDs on PE2 and =
PE3.&nbsp;</span></div><div class=3D"gmail_default"><span =
style=3D"font-size:12.8px" class=3D""><br class=3D""></span></div><div =
class=3D"gmail_default"><span style=3D"font-size:12.8px" =
class=3D"">Cheers,<br class=3D"">r.</span></div><div =
class=3D"gmail_default"><span style=3D"font-size:12.8px" class=3D""><br =
class=3D""></span></div><div class=3D"gmail_default"><span =
style=3D"font-size:12.8px" class=3D""><br class=3D""></span></div><div =
class=3D"gmail_default"><span style=3D"font-size:12.8px" class=3D""><br =
class=3D""></span></div></div><div class=3D"gmail_extra"><br =
class=3D""><div class=3D"gmail_quote">On Mon, Oct 26, 2015 at 6:47 PM, =
Gunter Van De Velde <span dir=3D"ltr" class=3D"">&lt;<a =
href=3D"mailto:guntervandeveldecc@icloud.com" target=3D"_blank" =
class=3D"">guntervandeveldecc@icloud.com</a>&gt;</span> wrote:<br =
class=3D""><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir=3D"ltr" =
class=3D"">There is miscommunication somewhere.</p><p dir=3D"ltr" =
class=3D"">Why do i wanna send another PATH_ID in a new NLRI? That does =
indeed do what you indicate. However that is not the intention.</p><p =
dir=3D"ltr" class=3D"">I see no difference as with traditional flowspec =
where redirect is to VRF or even IP address... Its same situation there. =
</p><p dir=3D"ltr" class=3D"">G/</p>
<div class=3D""> <br class=3D""><br class=3D"">Sent using <a =
href=3D"https://cloudmagic.com/k/d/mailapp?ct=3Dpa&amp;cv=3D7.4.10&amp;pv=3D=
6.0&amp;source=3Demail_footer_2" target=3D"_blank" class=3D"">CloudMagic =
Email</a> </div><div class=3D"HOEnZb"><div class=3D"h5"><div =
style=3D"color:#787878" class=3D"">On Mon, Oct 26, 2015 at 6:35 PM, =
Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_blank" =
class=3D"">robert@raszuk.net</a>&gt; wrote:</div><br class=3D""><div =
style=3D"background:rgb(255,255,255)" class=3D""><blockquote class=3D""> =
<div dir=3D"ltr" class=3D""><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Gunter,</=
div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Sorry =
but I am afraid this does not work :(.&nbsp;</div><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">BGP =
uses notion of implicit withdraw for a given NLRI.&nbsp;</div><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">So for =
particular flow NLRI I can advertise only single PATH_ID as subsequent =
NLRI with different PATH_ID will be treated as withdraw of the =
former.&nbsp;</div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">So if =
indeed as you said "..each PE the redirect tunnel will share the unique =
PATH_ID .." that effectively means that for a given flow NLRI I can =
advertise redirect service to only one PE pretty much killing p2mp =
advantage of BGP and what's worse blocking from advertising the same =
flow NLRI with any different set of actions.&nbsp;</div><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Best,</di=
v><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">R.</div><=
div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div></div><div class=3D"gmail_extra"><br class=3D""><div =
class=3D"gmail_quote">On Mon, Oct 26, 2015 at 6:15 PM, VAN DE VELDE, =
Gunter (Gunter) <span dir=3D"ltr" class=3D"">&lt;<a =
href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank" =
class=3D"">gunter.van_de_velde@alcatel-lucent.com</a>&gt;</span> =
wrote:<br class=3D""><blockquote class=3D"gmail_quote" style=3D"margin:0 =
0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">



<div style=3D"word-wrap: break-word; font-size: 14px; font-family: =
Calibri, sans-serif;" class=3D"">
<div class=3D"">
<div class=3D"">Robert,</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Yeah, BGP is indeed p2mp relationship=E2=80=A6 This is =
important to keep in mind, and that it is exactly why PATH-ID makes =
sense.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">With 32-bit you have 2^32 and with 128-bit you have =
2^128 unique identifiers. That is quite a lot and will serve redirect =
policies in most networks I would assume.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">In manual setup it is simple for a single PE:</div>
<ul class=3D"">
<li class=3D"">Preconfigure the PE with a tunnel and map it to a given =
unique PATH_ID</li><li class=3D"">This tunnel now exists, however it is =
not used</li><li class=3D"">&nbsp;Now the controller (i.e. vRR) sends a =
flow spec rule to identify the traffic using this tunnel and steers =
traffic into this tunnel</li></ul>
<div class=3D"">When you have multiple PE=E2=80=99s using a single =
redirect service:</div>
<ul class=3D"">
<li class=3D"">Same setup as above, but on each PE the redirect tunnel =
will share the unique PATH_ID reflecting the redirect tunnel =
service</li><li class=3D"">(there is no relationship that the =
destination is the same=E2=80=A6 just the redirect service is the =
same)</li></ul>
<div class=3D"">When you have 5000 of these Redirect services =
planned:</div>
<ul class=3D"">
<li class=3D"">Manual config will make you go crazy very soon</li><li =
class=3D"">The above can be 100% orchestrated or a mix of =
manual/orchestrated could be used</li></ul>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">The benefit of redirect-to-PATH_ID facilitates that =
network redirect service it decoupled from the tunnel =
creation/characteristics. hence the setup of a mp2p tunnel is beyond the =
scope the path_ID redirect draft if that happens to be the redirect =
service
 you had in mind.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">G/&nbsp;</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">
<div class=3D""></div>
</div>
</div>
<div class=3D""><br class=3D"">
</div>
<span class=3D"">
<div style=3D"font-family: Calibri; font-size: 12pt; text-align: left; =
border-width: 1pt medium medium; border-style: solid none none; padding: =
3pt 0in 0in; border-top-color: rgb(181, 196, 223);" class=3D"">
<span style=3D"font-weight:bold" class=3D"">From: </span>&lt;<a =
href=3D"mailto:rraszuk@gmail.com" target=3D"_blank" =
class=3D"">rraszuk@gmail.com</a>&gt; on behalf of Robert Raszuk &lt;<a =
href=3D"mailto:robert@raszuk.net" target=3D"_blank" =
class=3D"">robert@raszuk.net</a>&gt;<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">Date: </span>Monday 26 =
October 2015 at 17:41<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">To: </span>Gunter Van de =
Velde &lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" =
target=3D"_blank" =
class=3D"">gunter.van_de_velde@alcatel-lucent.com</a>&gt;<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">Cc: </span>Lizhenbin &lt;<a =
href=3D"mailto:lizhenbin@huawei.com" target=3D"_blank" =
class=3D"">lizhenbin@huawei.com</a>&gt;, Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com" target=3D"_blank" =
class=3D"">shares@ndzh.com</a>&gt;, "<a href=3D"mailto:idr@ietf.org" =
target=3D"_blank" class=3D"">idr@ietf.org</a>" &lt;<a =
href=3D"mailto:idr@ietf.org" target=3D"_blank" =
class=3D"">idr@ietf.org</a>&gt;,
 "<a href=3D"mailto:jgs@bgp.nu" target=3D"_blank" =
class=3D"">jgs@bgp.nu</a>" &lt;<a href=3D"mailto:jgs@bgp.nu" =
target=3D"_blank" class=3D"">jgs@bgp.nu</a>&gt;<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">Subject: </span>Re: [Idr] =
Regarding draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D:=
 IDR interim (10/26/2015) 10:00am - 11:30am ET update<br class=3D"">
</div><div class=3D""><div class=3D"">
<div class=3D""><br class=3D"">
</div>
<div class=3D"">
<div class=3D"">
<div dir=3D"ltr" class=3D"">
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Hi Gunter,</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Let's observe that BGP signalling is p2mp.&nbsp;</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Now let's also notice that as you correctly state TE tunnels are rather =
custom crafted p2p entities.&nbsp;</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Then natural question comes to mind ...&nbsp;</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
How good does it serve to signal identical PATH_ID to all head ends for =
a given flow while what you need to do is to map it rather uniquely in =
the network ?</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
While in theory one could construct number of mp2p TE forwarding graphs =
each with identical PATH_ID on a per flow basis I bet in practice this =
was not the application you had in mind as its opex would be rather high =
as compared to real practical usefulness
 :)</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Side question ... How are you going to provision mp2p TE ? Are you going =
to dust-off some proposals for it from the past ? Example:
<a href=3D"https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06"=
 target=3D"_blank" =
class=3D"">https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06<=
/a>&nbsp;</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Or was perhaps your plan to provision number of p2p TE tunnels from =
PCE/Controller with the identical PATH_IDs ?&nbsp;</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Cheers,<br class=3D"">
R.</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
</div>
<div class=3D"gmail_extra"><br class=3D"">
<div class=3D"gmail_quote">On Mon, Oct 26, 2015 at 5:26 PM, VAN DE =
VELDE, Gunter (Gunter)
<span dir=3D"ltr" class=3D"">&lt;<a =
href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank" =
class=3D"">gunter.van_de_velde@alcatel-lucent.com</a>&gt;</span> =
wrote:<br class=3D"">
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style=3D"word-wrap: break-word; font-size: 14px; font-family: =
Calibri, sans-serif;" class=3D"">
<div class=3D"">
<div class=3D"">Hi Robin,</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Thanks for your note.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">A tunnel is not always going over shortest path. Some =
tunnels are TE tunnels and are deliberately not going over a shortest =
path. This is something that&nbsp;<span style=3D"color:rgb(31,73,125)" =
class=3D"">draft-rosen-idr-tunnel-encaps-00&nbsp;</span>will not help to =
signal
 because the tunnel-encap attribute indicates tunnel parameters used by =
the tail-end.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">If a redirect tunnel represents a particular =
redirect/steering service (better delay, less packet loss, non-SRLG, =
more BW, etc=E2=80=A6) then it does become rather complex for BGP as =
signalling technology because a tunnel relationship is a unique between =
'a headend'
 and =E2=80=98a tailed' device. It seems better to leave tunnel-setup to =
dedicated tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">The draft redirect-to-PATH_ID is providing the means to =
signal a flow-based redirect/steering service, and have each recipient =
router identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup
 complexity to be taken away from BGP, while at the same time BGP is =
doing what it is very good at doing: "It signals a policy=E2=80=9D in =
reliable fashion.</div>
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Kind Regards,</div>
<div class=3D"">G/</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<span class=3D"">
<div style=3D"font-family: Calibri; font-size: 12pt; text-align: left; =
border-width: 1pt medium medium; border-style: solid none none; padding: =
3pt 0in 0in; border-top-color: rgb(181, 196, 223);" class=3D"">
<span style=3D"font-weight:bold" class=3D"">From:&nbsp;</span> Idr =
&lt;<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank" =
class=3D"">idr-bounces@ietf.org</a>&gt; on behalf of Lizhenbin &lt;<a =
href=3D"mailto:lizhenbin@huawei.com" target=3D"_blank" =
class=3D"">lizhenbin@huawei.com</a>&gt;<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">Date: </span>Monday 26 =
October 2015 at 16:51<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">To: </span>Susan Hares =
&lt;<a href=3D"mailto:shares@ndzh.com" target=3D"_blank" =
class=3D"">shares@ndzh.com</a>&gt;, "<a href=3D"mailto:idr@ietf.org" =
target=3D"_blank" class=3D"">idr@ietf.org</a>" &lt;<a =
href=3D"mailto:idr@ietf.org" target=3D"_blank" =
class=3D"">idr@ietf.org</a>&gt;<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">Cc: </span>"<a =
href=3D"mailto:jgs@bgp.nu" target=3D"_blank" class=3D"">jgs@bgp.nu</a>" =
&lt;<a href=3D"mailto:jgs@bgp.nu" target=3D"_blank" =
class=3D"">jgs@bgp.nu</a>&gt;<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">Subject: </span>[Idr] =
Regarding draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D:=
 IDR interim (10/26/2015) 10:00am - 11:30am ET update<br class=3D"">
</div>
<div class=3D"">
<div class=3D"">
<div class=3D""><br class=3D"">
</div>
<div class=3D"">
<div lang=3D"ZH-CN" class=3D"">
<div class=3D""><p class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D"">Hi Gunter,<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d" =
class=3D"">Regarding your presentation, I have following comments:<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d" class=3D"">Do =
you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel =
setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic =
to the tunnel instead of signal tunnel
 setup. <u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D"">I am not sure if the =
reuse of draft-rosen-idr-tunnel-encaps-00 in the draft make you =
confused? We just hope to &nbsp;just reuses the attributes of to specify =
the tunnel type to help steering
<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D"">the traffic to =
tunnel. If this is not a good way, maybe we can define new attributes.<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D"">Best Regards,<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d" class=3D"">Robin<u=
 class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p>
<div class=3D"">
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt =
0cm 0cm 0cm" class=3D""><p class=3D"MsoNormal"><b class=3D""><span =
style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93" =
class=3D"">=E5=8F=91=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US" =
class=3D"">:</span></span></b><span lang=3D"EN-US" =
style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93" class=3D""> =
Idr [<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank" =
class=3D"">mailto:idr-bounces@ietf.org</a>]
</span><b class=3D""><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=
=E4=BD=93" class=3D"">=E4=BB=A3=E8=A1=A8 </span></b><span lang=3D"EN-US" =
style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93" class=3D"">Susan=
 Hares<br class=3D"">
</span><b class=3D""><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=
=E4=BD=93" class=3D"">=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span =
lang=3D"EN-US" class=3D"">:</span></span></b><span lang=3D"EN-US" =
style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93" class=3D""> =
2015</span><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93"=
 class=3D"">=E5=B9=B4<span lang=3D"EN-US" class=3D"">10</span>=E6=9C=88<sp=
an lang=3D"EN-US" class=3D"">25</span>=E6=97=A5<span lang=3D"EN-US" =
class=3D"">
 22:07<br class=3D"">
</span><b class=3D"">=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US" =
class=3D"">:</span></b><span lang=3D"EN-US" class=3D""> <a =
href=3D"mailto:idr@ietf.org" target=3D"_blank" class=3D"">
idr@ietf.org</a><br class=3D"">
</span><b class=3D"">=E6=8A=84=E9=80=81<span lang=3D"EN-US" =
class=3D"">:</span></b><span lang=3D"EN-US" class=3D""> <a =
href=3D"mailto:jgs@bgp.nu" target=3D"_blank" class=3D"">
jgs@bgp.nu</a><br class=3D"">
</span><b class=3D"">=E4=B8=BB=E9=A2=98<span lang=3D"EN-US" =
class=3D"">:</span></b><span lang=3D"EN-US" class=3D""> [Idr] IDR =
interim (10/26/2015) 10:00am - 11:30am ET update<u class=3D""></u><u =
class=3D""></u></span></span></p>
</div>
</div><p class=3D"MsoNormal"><span lang=3D"EN-US" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">IDR WG members: <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">Below is an updated agenda for the IDR interim on =
10/26/2015.<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">Sue <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">------------<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">IDR interim October =
26, 2015 <u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">10:00 - 11:30am <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">1. Chair's slides [10:00-10:05]<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D""><u class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">1. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp; speaker: Stephane Litowski&nbsp; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;Time: 10:05-10:15<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <a =
href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-inte=
rfaceset/" target=3D"_blank" class=3D"">
=
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset=
/</a><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">2. draft-hao-idr-flowspec-redirect-tunnel-00<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Speaker: Weiguo Hao<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Time: 10:15 - 10:25 <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tu=
nnel/" target=3D"_blank" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect=
-tunnel/</a><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">3. draft-vandevelde-idr-flowspec-path-redirect<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Speaker: Gunter Van De Velde<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Time: 10:25- 10:35<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <a =
href=3D"http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path=
-redirect/" target=3D"_blank" class=3D"">
=
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirec=
t/</a><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">4. Draft Name: draft-hao-idr-flowspec-nvo3-02
<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;&nbsp;Speaker: Weiguo Hao<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp; Duration: 10:35-10:40 <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/" =
target=3D"_blank" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a=
><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">5. draft-liang-idr-bgp-flowspec-label-01.txt.<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Speaker: <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;&nbsp;Duration: 10:40-10:45 <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label=
/" target=3D"_blank" =
class=3D"">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-la=
bel/</a><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">6. draft-liang-idr-bgp-flowspec-time<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; presenter: Jianjie You<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; time: 10:45-10:55<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/=
" target=3D"_blank" class=3D"">
http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/</a><u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">7. Draft Name: draft-li-idr-mpls-path-programming-02<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Speaker: Zhenbin Li<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Duration: 10:55-11:05 <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming=
/" target=3D"_blank" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</a><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">7. Draft Name: =
draft-li-idr-flowspec-rpd-01<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp; Speaker: Shunwan Zhuang<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp; Duration: 11:05 - 11:15 <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/" =
target=3D"_blank" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/</a><=
u class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span=
 lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">8.&nbsp; Discussion of Flowspec drafts<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;&nbsp; 11:15 - 11:30am <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;Meeting Web-ex =
information <u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;Monday, =
October 26, 2015 <u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">10:00 am&nbsp; =
|&nbsp; Eastern Daylight Time (New York, GMT-04:00)&nbsp; |&nbsp; 2 hrs
<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">webex infor: <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><a =
href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c=
3ff3143f" target=3D"_blank" =
class=3D"">https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e5=
99c3ff3143f</a><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">Meeting number: =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 964 970 =
<u class=3D"">
</u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">Meeting =
password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; flow.in.nets<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D""><u class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">Join by phone<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><a href=3D"tel:1-877-668-4493" target=3D"_blank"=
 class=3D"">1-877-668-4493</a> Call-in toll free number (US/Canada)<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><a href=3D"tel:1-650-479-3208" target=3D"_blank"=
 class=3D"">1-650-479-3208</a> Call-in toll number (US/Canada)<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">Access code: 644 964 970<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D""><u class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p>
</div>
</div>
</div>
</div>
</div>
</span></div>
<br class=3D"">
_______________________________________________<br class=3D"">
Idr mailing list<br class=3D"">
<a href=3D"mailto:Idr@ietf.org" target=3D"_blank" =
class=3D"">Idr@ietf.org</a><br class=3D"">
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" rel=3D"noreferrer" =
target=3D"_blank" =
class=3D"">https://www.ietf.org/mailman/listinfo/idr</a><br class=3D"">
<br class=3D"">
</blockquote>
</div>
<br class=3D"">
</div>
</div>
</div>
</div></div></span>
</div>

</blockquote></div><br class=3D""></div>
</blockquote></div></div></div></blockquote></div><br class=3D""></div>
</div></blockquote></div><br class=3D""></body></html>=

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Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiBJRFIgaW50ZXJpbSAoMTAvMjYvMjAxNSkgMTA6MDBh?= =?utf-8?q?m_-_11=3A30am_ET_update?=
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> On PE1 the localised mapping of PATH_ID1 goes to Tunnel 1
> On PE2 the localised mapping of PATH_ID1 goes to Tunnel 2

That would be highly confusing operationally.

> then the PATH_ID could seen as this VRF

If so why not to use VRF which is already supported by all implementations?
Having N ways to signal the same is never good idea.

Moreover you are not to worry about new mapping entity on all PEs of
PATH_IDs to forwarding.

But at least you got my point :)

Cheers,
R.




On Mon, Oct 26, 2015 at 8:33 PM, Gunter Van De Velde <
guntervandeveldecc@icloud.com> wrote:

> Ah=E2=80=A6 i think i see where the misunderstanding came from=E2=80=A6
>
> Assume:
> Flowspec rule 1 =3D [MATCH1] & [redirect_to_PATH_ID1]
>
> PATH_ID1 =3D redirect identifier to redirect_service_1
>
> Redirect service has localised meaning:
> On PE1 the localised mapping of PATH_ID1 goes to Tunnel 1
> On PE2 the localised mapping of PATH_ID1 goes to Tunnel 2
> Hence PATH_ID provides localised indirection, just like in the VRF case=
=E2=80=A6
> (the mapping of PATH_ID to the tunnel is done by a localised PATH_ID
> indexed table)
>
> i.e. look at an extreme use-case example: assume a VRF has only a single
> route (0/0) then the PATH_ID could
> seen as this VRF=E2=80=A6. it would result in exactly the same forwarding=
 compared
> to using VRF redirect
> or PATH_ID redirect in this extreme case=E2=80=A6
>
>
> G/
>
>
>
>
> On 26 Oct 2015, at 20:10, Robert Raszuk <robert@raszuk.net> wrote:
>
> > I see no difference as with traditional flowspec where
> > redirect is to VRF or even IP address... Its same situation
> > there.
>
> I don't think it is same situation.
>
> Redirect to VRF provides local indirection. VRF can be the same on all PE=
s
> where you map redirected data to whatever you like.
>
> Redirect to IP also is very different as the IP address typically
> represents a single point (or anycast point) of processing device for all
> redirected flows from all PEs.
>
> The draft in the subject however as you have also explained targets to
> provide mapping to unique per PE PATH_IDs for the same flow.
>
> Perhaps you can illustrate on example how flowspec update coming from PE1
> via RR can influence for a given NLRI matching traffic to take different
> PATH-IDs on PE2 and PE3.
>
> Cheers,
> r.
>
>
>
>
> On Mon, Oct 26, 2015 at 6:47 PM, Gunter Van De Velde <
> guntervandeveldecc@icloud.com> wrote:
>
>> There is miscommunication somewhere.
>>
>> Why do i wanna send another PATH_ID in a new NLRI? That does indeed do
>> what you indicate. However that is not the intention.
>>
>> I see no difference as with traditional flowspec where redirect is to VR=
F
>> or even IP address... Its same situation there.
>>
>> G/
>>
>>
>> Sent using CloudMagic Email
>> <https://cloudmagic.com/k/d/mailapp?ct=3Dpa&cv=3D7.4.10&pv=3D6.0&source=
=3Demail_footer_2>
>> On Mon, Oct 26, 2015 at 6:35 PM, Robert Raszuk <robert@raszuk.net> wrote=
:
>>
>> Gunter,
>>
>> Sorry but I am afraid this does not work :(.
>>
>> BGP uses notion of implicit withdraw for a given NLRI.
>>
>> So for particular flow NLRI I can advertise only single PATH_ID as
>> subsequent NLRI with different PATH_ID will be treated as withdraw of th=
e
>> former.
>>
>> So if indeed as you said "..each PE the redirect tunnel will share the
>> unique PATH_ID .." that effectively means that for a given flow NLRI I c=
an
>> advertise redirect service to only one PE pretty much killing p2mp
>> advantage of BGP and what's worse blocking from advertising the same flo=
w
>> NLRI with any different set of actions.
>>
>> Best,
>> R.
>>
>>
>>
>>
>> On Mon, Oct 26, 2015 at 6:15 PM, VAN DE VELDE, Gunter (Gunter) <
>> gunter.van_de_velde@alcatel-lucent.com> wrote:
>>
>>> Robert,
>>>
>>> Yeah, BGP is indeed p2mp relationship=E2=80=A6 This is important to kee=
p in
>>> mind, and that it is exactly why PATH-ID makes sense.
>>>
>>> With 32-bit you have 2^32 and with 128-bit you have 2^128 unique
>>> identifiers. That is quite a lot and will serve redirect policies in mo=
st
>>> networks I would assume.
>>>
>>> In manual setup it is simple for a single PE:
>>>
>>>    - Preconfigure the PE with a tunnel and map it to a given unique
>>>    PATH_ID
>>>    - This tunnel now exists, however it is not used
>>>    -  Now the controller (i.e. vRR) sends a flow spec rule to identify
>>>    the traffic using this tunnel and steers traffic into this tunnel
>>>
>>> When you have multiple PE=E2=80=99s using a single redirect service:
>>>
>>>    - Same setup as above, but on each PE the redirect tunnel will share
>>>    the unique PATH_ID reflecting the redirect tunnel service
>>>    - (there is no relationship that the destination is the same=E2=80=
=A6 just
>>>    the redirect service is the same)
>>>
>>> When you have 5000 of these Redirect services planned:
>>>
>>>    - Manual config will make you go crazy very soon
>>>    - The above can be 100% orchestrated or a mix of manual/orchestrated
>>>    could be used
>>>
>>>
>>> The benefit of redirect-to-PATH_ID facilitates that network redirect
>>> service it decoupled from the tunnel creation/characteristics. hence th=
e
>>> setup of a mp2p tunnel is beyond the scope the path_ID redirect draft i=
f
>>> that happens to be the redirect service you had in mind.
>>>
>>> G/
>>>
>>>
>>> From: <rraszuk@gmail.com> on behalf of Robert Raszuk <robert@raszuk.net=
>
>>> Date: Monday 26 October 2015 at 17:41
>>> To: Gunter Van de Velde <gunter.van_de_velde@alcatel-lucent.com>
>>> Cc: Lizhenbin <lizhenbin@huawei.com>, Susan Hares <shares@ndzh.com>, "
>>> idr@ietf.org" <idr@ietf.org>, "jgs@bgp.nu" <jgs@bgp.nu>
>>> Subject: Re: [Idr] Regarding
>>> draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR in=
terim (10/26/2015)
>>> 10:00am - 11:30am ET update
>>>
>>> Hi Gunter,
>>>
>>> Let's observe that BGP signalling is p2mp.
>>>
>>> Now let's also notice that as you correctly state TE tunnels are rather
>>> custom crafted p2p entities.
>>>
>>> Then natural question comes to mind ...
>>>
>>> How good does it serve to signal identical PATH_ID to all head ends for
>>> a given flow while what you need to do is to map it rather uniquely in =
the
>>> network ?
>>>
>>> While in theory one could construct number of mp2p TE forwarding graphs
>>> each with identical PATH_ID on a per flow basis I bet in practice this =
was
>>> not the application you had in mind as its opex would be rather high as
>>> compared to real practical usefulness :)
>>>
>>> Side question ... How are you going to provision mp2p TE ? Are you goin=
g
>>> to dust-off some proposals for it from the past ? Example:
>>> https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06
>>>
>>> Or was perhaps your plan to provision number of p2p TE tunnels from
>>> PCE/Controller with the identical PATH_IDs ?
>>>
>>> Cheers,
>>> R.
>>>
>>>
>>> On Mon, Oct 26, 2015 at 5:26 PM, VAN DE VELDE, Gunter (Gunter) <
>>> gunter.van_de_velde@alcatel-lucent.com> wrote:
>>>
>>>> Hi Robin,
>>>>
>>>> Thanks for your note.
>>>>
>>>> A tunnel is not always going over shortest path. Some tunnels are TE
>>>> tunnels and are deliberately not going over a shortest path. This is
>>>> something that draft-rosen-idr-tunnel-encaps-00 will not help to
>>>> signal because the tunnel-encap attribute indicates tunnel parameters =
used
>>>> by the tail-end.
>>>>
>>>> If a redirect tunnel represents a particular redirect/steering service
>>>> (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then=
 it does
>>>> become rather complex for BGP as signalling technology because a tunne=
l
>>>> relationship is a unique between 'a headend' and =E2=80=98a tailed' de=
vice. It
>>>> seems better to leave tunnel-setup to dedicated tunnel-setup mechanism=
s
>>>> like PCEP, SR, etc=E2=80=A6.
>>>>
>>>> The draft redirect-to-PATH_ID is providing the means to signal a
>>>> flow-based redirect/steering service, and have each recipient router
>>>> identify using local recursion for the PATH_IDs the corresponding
>>>> tunnels/redirect-info. This allows for tunnel setup complexity to be t=
aken
>>>> away from BGP, while at the same time BGP is doing what it is very goo=
d at
>>>> doing: "It signals a policy=E2=80=9D in reliable fashion.
>>>>
>>>> Kind Regards,
>>>> G/
>>>>
>>>>
>>>>
>>>> From:  Idr <idr-bounces@ietf.org> on behalf of Lizhenbin <
>>>> lizhenbin@huawei.com>
>>>> Date: Monday 26 October 2015 at 16:51
>>>> To: Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
>>>> Cc: "jgs@bgp.nu" <jgs@bgp.nu>
>>>> Subject: [Idr] Regarding
>>>> draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR i=
nterim (10/26/2015)
>>>> 10:00am - 11:30am ET update
>>>>
>>>> Hi Gunter,
>>>>
>>>> Regarding your presentation, I have following comments:
>>>>
>>>> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel
>>>> setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic=
 to
>>>> the tunnel instead of signal tunnel setup.
>>>>
>>>> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the
>>>> draft make you confused? We just hope to  just reuses the attributes o=
f to
>>>> specify the tunnel type to help steering
>>>>
>>>> the traffic to tunnel. If this is not a good way, maybe we can define
>>>> new attributes.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Best Regards,
>>>>
>>>> Robin
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> *=E5=8F=91=E4=BB=B6=E4=BA=BA:* Idr [mailto:idr-bounces@ietf.org <idr-b=
ounces@ietf.org>] *=E4=BB=A3=E8=A1=A8 *Susan
>>>> Hares
>>>> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:* 2015=E5=B9=B410=E6=9C=8825=E6=
=97=A5 22:07
>>>> *=E6=94=B6=E4=BB=B6=E4=BA=BA:* idr@ietf.org
>>>> *=E6=8A=84=E9=80=81:* jgs@bgp.nu
>>>> *=E4=B8=BB=E9=A2=98:* [Idr] IDR interim (10/26/2015) 10:00am - 11:30am=
 ET update
>>>>
>>>>
>>>>
>>>> IDR WG members:
>>>>
>>>>
>>>>
>>>> Below is an updated agenda for the IDR interim on 10/26/2015.
>>>>
>>>>
>>>>
>>>> Sue
>>>>
>>>>
>>>>
>>>> ------------
>>>>
>>>> IDR interim October 26, 2015
>>>>
>>>> 10:00 - 11:30am
>>>>
>>>>
>>>>
>>>> 1. Chair's slides [10:00-10:05]
>>>>
>>>>
>>>>
>>>> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>>>>
>>>>    speaker: Stephane Litowski
>>>>
>>>>    Time: 10:05-10:15
>>>>
>>>>
>>>> https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfac=
eset/
>>>>
>>>>
>>>>
>>>> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>>>>
>>>>    Speaker: Weiguo Hao
>>>>
>>>>    Time: 10:15 - 10:25
>>>>
>>>>
>>>> http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel=
/
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> 3. draft-vandevelde-idr-flowspec-path-redirect
>>>>
>>>>    Speaker: Gunter Van De Velde
>>>>
>>>>    Time: 10:25- 10:35
>>>>
>>>>
>>>> http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-red=
irect/
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02
>>>>
>>>>    Speaker: Weiguo Hao
>>>>
>>>>    Duration: 10:35-10:40
>>>>
>>>>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>>>>
>>>>    Speaker:
>>>>
>>>>    Duration: 10:40-10:45
>>>>
>>>>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/
>>>>
>>>>
>>>>
>>>> 6. draft-liang-idr-bgp-flowspec-time
>>>>
>>>>    presenter: Jianjie You
>>>>
>>>>    time: 10:45-10:55
>>>>
>>>>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/
>>>>
>>>>
>>>>
>>>> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>>>>
>>>>    Speaker: Zhenbin Li
>>>>
>>>>    Duration: 10:55-11:05
>>>>
>>>>    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/
>>>>
>>>>
>>>>
>>>> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>>>>
>>>>    Speaker: Shunwan Zhuang
>>>>
>>>>    Duration: 11:05 - 11:15
>>>>
>>>>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/
>>>>
>>>>
>>>>
>>>> 8.  Discussion of Flowspec drafts
>>>>
>>>>     11:15 - 11:30am
>>>>
>>>>
>>>>
>>>>  Meeting Web-ex information
>>>>
>>>>  Monday, October 26, 2015
>>>>
>>>> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs
>>>>
>>>>
>>>>
>>>> webex infor:
>>>>
>>>> https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3=
143f
>>>>
>>>>
>>>>
>>>> Meeting number:            644 964 970
>>>>
>>>> Meeting password:         flow.in.nets
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Join by phone
>>>>
>>>> 1-877-668-4493 Call-in toll free number (US/Canada)
>>>>
>>>> 1-650-479-3208 Call-in toll number (US/Canada)
>>>>
>>>> Access code: 644 964 970
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Idr mailing list
>>>> Idr@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/idr
>>>>
>>>>
>>>
>>
>
>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small"><div style=3D"font-family:arial,sans-se=
rif;font-size:12.8px">&gt; On PE1 the localised mapping of PATH_ID1 goes to=
 Tunnel 1</div><div style=3D"font-family:arial,sans-serif;font-size:12.8px"=
>&gt; On PE2 the localised mapping of PATH_ID1 goes to Tunnel 2</div><div s=
tyle=3D"font-family:arial,sans-serif;font-size:12.8px"><br></div><div style=
=3D"font-family:arial,sans-serif;font-size:12.8px">That would be highly con=
fusing operationally.=C2=A0</div><div style=3D"font-family:arial,sans-serif=
;font-size:12.8px"><br></div><div style=3D"font-family:arial,sans-serif;fon=
t-size:12.8px"><div style=3D"font-size:12.8px">&gt; then the PATH_ID could=
=C2=A0<span style=3D"font-size:12.8px">seen as this VRF</span></div><div st=
yle=3D"font-size:12.8px"><span style=3D"font-size:12.8px"><br></span></div>=
<div style=3D"font-size:12.8px"><span style=3D"font-size:12.8px">If so why =
not to use VRF which is already supported by all implementations? Having N =
ways to signal the same is never good idea.=C2=A0</span></div><div style=3D=
"font-size:12.8px"><span style=3D"font-size:12.8px"><br></span></div><div s=
tyle=3D"font-size:12.8px"><span style=3D"font-size:12.8px">Moreover you are=
 not to worry about new mapping entity on all PEs of PATH_IDs to forwarding=
.=C2=A0</span></div><div style=3D"font-size:12.8px"><span style=3D"font-siz=
e:12.8px"><br></span></div><div style=3D"font-size:12.8px"><span style=3D"f=
ont-size:12.8px">But at least you got my point :)</span></div><div style=3D=
"font-size:12.8px"><span style=3D"font-size:12.8px"><br></span></div><div s=
tyle=3D"font-size:12.8px"><span style=3D"font-size:12.8px">Cheers,<br>R.</s=
pan></div><div style=3D"font-size:12.8px"><span style=3D"font-size:12.8px">=
<br></span></div><div style=3D"font-size:12.8px"><span style=3D"font-size:1=
2.8px"><br></span></div><div style=3D"font-size:12.8px"><span style=3D"font=
-size:12.8px"><br></span></div></div></div></div><div class=3D"gmail_extra"=
><br><div class=3D"gmail_quote">On Mon, Oct 26, 2015 at 8:33 PM, Gunter Van=
 De Velde <span dir=3D"ltr">&lt;<a href=3D"mailto:guntervandeveldecc@icloud=
.com" target=3D"_blank">guntervandeveldecc@icloud.com</a>&gt;</span> wrote:=
<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-lef=
t:1px #ccc solid;padding-left:1ex"><div style=3D"word-wrap:break-word"><div=
>Ah=E2=80=A6 i think i see where the misunderstanding came from=E2=80=A6</d=
iv><div><br></div><div>Assume:</div><div>Flowspec rule 1 =3D [MATCH1] &amp;=
 [redirect_to_PATH_ID1]</div><div><br></div><div>PATH_ID1 =3D redirect iden=
tifier to redirect_service_1</div><div><br></div><div>Redirect service has =
localised meaning:</div><div>On PE1 the localised mapping of PATH_ID1 goes =
to Tunnel 1</div><div>On PE2 the localised mapping of PATH_ID1 goes to Tunn=
el 2</div><div>Hence PATH_ID provides localised indirection, just like in t=
he VRF case=E2=80=A6=C2=A0</div><div>(the mapping of PATH_ID to the tunnel =
is done by a localised PATH_ID indexed table)</div><div><br></div><div>i.e.=
 look at an extreme use-case example: assume a VRF has only a single route =
(0/0) then the PATH_ID could=C2=A0</div><div>seen as this VRF=E2=80=A6. it =
would result in exactly the same forwarding compared to using VRF redirect=
=C2=A0</div><div>or PATH_ID redirect in this extreme case=E2=80=A6=C2=A0</d=
iv><span class=3D"HOEnZb"><font color=3D"#888888"><div><br></div><div><br><=
/div><div>G/</div></font></span><div><div class=3D"h5"><div><br></div><div>=
<br></div><div><br></div><br><div><blockquote type=3D"cite"><div>On 26 Oct =
2015, at 20:10, Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" targ=
et=3D"_blank">robert@raszuk.net</a>&gt; wrote:</div><br><div><div dir=3D"lt=
r"><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-s=
erif;font-size:small"><span style=3D"font-family:arial,sans-serif;font-size=
:12.8px">&gt; I see no difference as with traditional flowspec where=C2=A0<=
/span></div><div class=3D"gmail_default" style=3D"font-family:arial,helveti=
ca,sans-serif;font-size:small"><span style=3D"font-family:arial,sans-serif;=
font-size:12.8px">&gt; redirect is to VRF or even IP address... Its same si=
tuation=C2=A0</span></div><div class=3D"gmail_default" style=3D"font-family=
:arial,helvetica,sans-serif;font-size:small"><span style=3D"font-family:ari=
al,sans-serif;font-size:12.8px">&gt; there.</span><br></div><div class=3D"g=
mail_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:sma=
ll"><span style=3D"font-family:arial,sans-serif;font-size:12.8px"><br></spa=
n></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,s=
ans-serif;font-size:small"><span style=3D"font-family:arial,sans-serif;font=
-size:12.8px">I don&#39;t think it is same situation.=C2=A0</span></div><di=
v class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;f=
ont-size:small"><span style=3D"font-family:arial,sans-serif;font-size:12.8p=
x"><br></span></div><div class=3D"gmail_default" style=3D"font-family:arial=
,helvetica,sans-serif;font-size:small"><span style=3D"font-family:arial,san=
s-serif;font-size:12.8px">Redirect to VRF provides local indirection. VRF c=
an be the same on all PEs where you map redirected data to whatever you lik=
e.=C2=A0</span></div><div class=3D"gmail_default" style=3D"font-family:aria=
l,helvetica,sans-serif;font-size:small"><span style=3D"font-family:arial,sa=
ns-serif;font-size:12.8px"><br></span></div><div class=3D"gmail_default" st=
yle=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span style=
=3D"font-family:arial,sans-serif;font-size:12.8px">Redirect to IP also is v=
ery different as the IP address typically represents a single point (or any=
cast point) of processing device for all redirected flows from all PEs.=C2=
=A0</span></div><div class=3D"gmail_default" style=3D"font-family:arial,hel=
vetica,sans-serif;font-size:small"><span style=3D"font-family:arial,sans-se=
rif;font-size:12.8px"><br></span></div><div class=3D"gmail_default"><span s=
tyle=3D"font-size:12.8px">The draft in the subject however as you have also=
 explained targets to provide mapping to unique per PE PATH_IDs for the sam=
e flow.=C2=A0</span></div><div class=3D"gmail_default"><span style=3D"font-=
size:12.8px"><br></span></div><div class=3D"gmail_default"><span style=3D"f=
ont-size:12.8px">Perhaps you can illustrate on example how flowspec update =
coming from PE1 via RR can influence for a given NLRI matching traffic to t=
ake different PATH-IDs on PE2 and PE3.=C2=A0</span></div><div class=3D"gmai=
l_default"><span style=3D"font-size:12.8px"><br></span></div><div class=3D"=
gmail_default"><span style=3D"font-size:12.8px">Cheers,<br>r.</span></div><=
div class=3D"gmail_default"><span style=3D"font-size:12.8px"><br></span></d=
iv><div class=3D"gmail_default"><span style=3D"font-size:12.8px"><br></span=
></div><div class=3D"gmail_default"><span style=3D"font-size:12.8px"><br></=
span></div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">=
On Mon, Oct 26, 2015 at 6:47 PM, Gunter Van De Velde <span dir=3D"ltr">&lt;=
<a href=3D"mailto:guntervandeveldecc@icloud.com" target=3D"_blank">gunterva=
ndeveldecc@icloud.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_q=
uote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1e=
x"><p dir=3D"ltr">There is miscommunication somewhere.</p><p dir=3D"ltr">Wh=
y do i wanna send another PATH_ID in a new NLRI? That does indeed do what y=
ou indicate. However that is not the intention.</p><p dir=3D"ltr">I see no =
difference as with traditional flowspec where redirect is to VRF or even IP=
 address... Its same situation there. </p><p dir=3D"ltr">G/</p>
<div> <br><br>Sent using <a href=3D"https://cloudmagic.com/k/d/mailapp?ct=
=3Dpa&amp;cv=3D7.4.10&amp;pv=3D6.0&amp;source=3Demail_footer_2" target=3D"_=
blank">CloudMagic Email</a> </div><div><div><div style=3D"color:#787878">On=
 Mon, Oct 26, 2015 at 6:35 PM, Robert Raszuk &lt;<a href=3D"mailto:robert@r=
aszuk.net" target=3D"_blank">robert@raszuk.net</a>&gt; wrote:</div><br><div=
 style=3D"background:rgb(255,255,255)"><blockquote> <div dir=3D"ltr"><div c=
lass=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font=
-size:small">Gunter,</div><div class=3D"gmail_default" style=3D"font-family=
:arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_=
default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">S=
orry but I am afraid this does not work :(.=C2=A0</div><div class=3D"gmail_=
default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><=
br></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,=
sans-serif;font-size:small">BGP uses notion of implicit withdraw for a give=
n NLRI.=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:arial,=
helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_default=
" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">So for p=
articular flow NLRI I can advertise only single PATH_ID as subsequent NLRI =
with different PATH_ID will be treated as withdraw of the former.=C2=A0</di=
v><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-se=
rif;font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-f=
amily:arial,helvetica,sans-serif;font-size:small">So if indeed as you said =
&quot;..each PE the redirect tunnel will share the unique PATH_ID ..&quot; =
that effectively means that for a given flow NLRI I can advertise redirect =
service to only one PE pretty much killing p2mp advantage of BGP and what&#=
39;s worse blocking from advertising the same flow NLRI with any different =
set of actions.=C2=A0</div><div class=3D"gmail_default" style=3D"font-famil=
y:arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail=
_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">=
Best,</div><div class=3D"gmail_default" style=3D"font-family:arial,helvetic=
a,sans-serif;font-size:small">R.</div><div class=3D"gmail_default" style=3D=
"font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div cla=
ss=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-s=
ize:small"><br></div><div class=3D"gmail_default" style=3D"font-family:aria=
l,helvetica,sans-serif;font-size:small"><br></div></div><div class=3D"gmail=
_extra"><br><div class=3D"gmail_quote">On Mon, Oct 26, 2015 at 6:15 PM, VAN=
 DE VELDE, Gunter (Gunter) <span dir=3D"ltr">&lt;<a href=3D"mailto:gunter.v=
an_de_velde@alcatel-lucent.com" target=3D"_blank">gunter.van_de_velde@alcat=
el-lucent.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" st=
yle=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">



<div style=3D"word-wrap:break-word;font-size:14px;font-family:Calibri,sans-=
serif">
<div>
<div>Robert,</div>
<div><br>
</div>
<div>Yeah, BGP is indeed p2mp relationship=E2=80=A6 This is important to ke=
ep in mind, and that it is exactly why PATH-ID makes sense.</div>
<div><br>
</div>
<div>With 32-bit you have 2^32 and with 128-bit you have 2^128 unique ident=
ifiers. That is quite a lot and will serve redirect policies in most networ=
ks I would assume.</div>
<div><br>
</div>
<div>In manual setup it is simple for a single PE:</div>
<ul>
<li>Preconfigure the PE with a tunnel and map it to a given unique PATH_ID<=
/li><li>This tunnel now exists, however it is not used</li><li>=C2=A0Now th=
e controller (i.e. vRR) sends a flow spec rule to identify the traffic usin=
g this tunnel and steers traffic into this tunnel</li></ul>
<div>When you have multiple PE=E2=80=99s using a single redirect service:</=
div>
<ul>
<li>Same setup as above, but on each PE the redirect tunnel will share the =
unique PATH_ID reflecting the redirect tunnel service</li><li>(there is no =
relationship that the destination is the same=E2=80=A6 just the redirect se=
rvice is the same)</li></ul>
<div>When you have 5000 of these Redirect services planned:</div>
<ul>
<li>Manual config will make you go crazy very soon</li><li>The above can be=
 100% orchestrated or a mix of manual/orchestrated could be used</li></ul>
<div><br>
</div>
<div>The benefit of redirect-to-PATH_ID facilitates that network redirect s=
ervice it decoupled from the tunnel creation/characteristics. hence the set=
up of a mp2p tunnel is beyond the scope the path_ID redirect draft if that =
happens to be the redirect service
 you had in mind.</div>
<div><br>
</div>
<div>G/=C2=A0</div>
<div><br>
</div>
<div>
<div></div>
</div>
</div>
<div><br>
</div>
<span>
<div style=3D"font-family:Calibri;font-size:12pt;text-align:left;border-wid=
th:1pt medium medium;border-style:solid none none;padding:3pt 0in 0in;borde=
r-top-color:rgb(181,196,223)">
<span style=3D"font-weight:bold">From: </span>&lt;<a href=3D"mailto:rraszuk=
@gmail.com" target=3D"_blank">rraszuk@gmail.com</a>&gt; on behalf of Robert=
 Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_blank">robert@r=
aszuk.net</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday 26 October 2015 at 17:=
41<br>
<span style=3D"font-weight:bold">To: </span>Gunter Van de Velde &lt;<a href=
=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank">gunter=
.van_de_velde@alcatel-lucent.com</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>Lizhenbin &lt;<a href=3D"mailto=
:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;, Susa=
n Hares &lt;<a href=3D"mailto:shares@ndzh.com" target=3D"_blank">shares@ndz=
h.com</a>&gt;, &quot;<a href=3D"mailto:idr@ietf.org" target=3D"_blank">idr@=
ietf.org</a>&quot; &lt;<a href=3D"mailto:idr@ietf.org" target=3D"_blank">id=
r@ietf.org</a>&gt;,
 &quot;<a href=3D"mailto:jgs@bgp.nu" target=3D"_blank">jgs@bgp.nu</a>&quot;=
 &lt;<a href=3D"mailto:jgs@bgp.nu" target=3D"_blank">jgs@bgp.nu</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Idr] Regarding draft-=
vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR interim (10/=
26/2015) 10:00am - 11:30am ET update<br>
</div><div><div>
<div><br>
</div>
<div>
<div>
<div dir=3D"ltr">
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Hi Gunter,</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Let&#39;s observe that BGP signalling is p2mp.=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Now let&#39;s also notice that as you correctly state TE tunnels are rather=
 custom crafted p2p entities.=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Then natural question comes to mind ...=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
How good does it serve to signal identical PATH_ID to all head ends for a g=
iven flow while what you need to do is to map it rather uniquely in the net=
work ?</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
While in theory one could construct number of mp2p TE forwarding graphs eac=
h with identical PATH_ID on a per flow basis I bet in practice this was not=
 the application you had in mind as its opex would be rather high as compar=
ed to real practical usefulness
 :)</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Side question ... How are you going to provision mp2p TE ? Are you going to=
 dust-off some proposals for it from the past ? Example:
<a href=3D"https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06" =
target=3D"_blank">https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvp=
te-06</a>=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Or was perhaps your plan to provision number of p2p TE tunnels from PCE/Con=
troller with the identical PATH_IDs ?=C2=A0</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
Cheers,<br>
R.</div>
<div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-seri=
f;font-size:small">
<br>
</div>
</div>
<div class=3D"gmail_extra"><br>
<div class=3D"gmail_quote">On Mon, Oct 26, 2015 at 5:26 PM, VAN DE VELDE, G=
unter (Gunter)
<span dir=3D"ltr">&lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.=
com" target=3D"_blank">gunter.van_de_velde@alcatel-lucent.com</a>&gt;</span=
> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<div style=3D"word-wrap:break-word;font-size:14px;font-family:Calibri,sans-=
serif">
<div>
<div>Hi Robin,</div>
<div><br>
</div>
<div>Thanks for your note.</div>
<div><br>
</div>
<div>A tunnel is not always going over shortest path. Some tunnels are TE t=
unnels and are deliberately not going over a shortest path. This is somethi=
ng that=C2=A0<span style=3D"color:rgb(31,73,125)">draft-rosen-idr-tunnel-en=
caps-00=C2=A0</span>will not help to signal
 because the tunnel-encap attribute indicates tunnel parameters used by the=
 tail-end.</div>
<div><br>
</div>
<div>If a redirect tunnel represents a particular redirect/steering service=
 (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then it =
does become rather complex for BGP as signalling technology because a tunne=
l relationship is a unique between &#39;a headend&#39;
 and =E2=80=98a tailed&#39; device. It seems better to leave tunnel-setup t=
o dedicated tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.</div>
<div><br>
</div>
<div>The draft redirect-to-PATH_ID is providing the means to signal a flow-=
based redirect/steering service, and have each recipient router identify us=
ing local recursion for the PATH_IDs the corresponding tunnels/redirect-inf=
o. This allows for tunnel setup
 complexity to be taken away from BGP, while at the same time BGP is doing =
what it is very good at doing: &quot;It signals a policy=E2=80=9D in reliab=
le fashion.</div>
</div>
<div><br>
</div>
<div>Kind Regards,</div>
<div>G/</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<span>
<div style=3D"font-family:Calibri;font-size:12pt;text-align:left;border-wid=
th:1pt medium medium;border-style:solid none none;padding:3pt 0in 0in;borde=
r-top-color:rgb(181,196,223)">
<span style=3D"font-weight:bold">From:=C2=A0</span> Idr &lt;<a href=3D"mail=
to:idr-bounces@ietf.org" target=3D"_blank">idr-bounces@ietf.org</a>&gt; on =
behalf of Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com" target=3D"_=
blank">lizhenbin@huawei.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday 26 October 2015 at 16:=
51<br>
<span style=3D"font-weight:bold">To: </span>Susan Hares &lt;<a href=3D"mail=
to:shares@ndzh.com" target=3D"_blank">shares@ndzh.com</a>&gt;, &quot;<a hre=
f=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</a>&quot; &lt;<a h=
ref=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:jgs@bgp=
.nu" target=3D"_blank">jgs@bgp.nu</a>&quot; &lt;<a href=3D"mailto:jgs@bgp.n=
u" target=3D"_blank">jgs@bgp.nu</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>[Idr] Regarding draft-vand=
evelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR interim (10/26/2=
015) 10:00am - 11:30am ET update<br>
</div>
<div>
<div>
<div><br>
</div>
<div>
<div lang=3D"ZH-CN">
<div><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;=
color:#1f497d">Hi Gunter,<u></u><u></u></span></p><p class=3D"MsoNormal"><s=
pan lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d">Regarding your =
presentation, I have following comments:<u></u><u></u></span></p><p class=
=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d=
">Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel se=
tup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic to the=
 tunnel instead of signal tunnel
 setup. <u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US=
" style=3D"font-size:10.5pt;color:#1f497d">I am not sure if the reuse of dr=
aft-rosen-idr-tunnel-encaps-00 in the draft make you confused? We just hope=
 to =C2=A0just reuses the attributes of to specify the tunnel type to help =
steering
<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=
=3D"font-size:10.5pt;color:#1f497d">the traffic to tunnel. If this is not a=
 good way, maybe we can define new attributes.<u></u><u></u></span></p><p c=
lass=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f=
497d"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span lang=3D"E=
N-US" style=3D"font-size:10.5pt;color:#1f497d"><u></u>=C2=A0<u></u></span><=
/p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;co=
lor:#1f497d">Best Regards,<u></u><u></u></span></p><p class=3D"MsoNormal"><=
span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d">Robin<u></u><u=
></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-s=
ize:10.5pt;color:#1f497d"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNor=
mal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d"><u></u>=
=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=
=3D"font-size:10.5pt;color:#1f497d"><u></u>=C2=A0<u></u></span></p><p class=
=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d=
"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US=
" style=3D"font-size:10.5pt;color:#1f497d"><u></u>=C2=A0<u></u></span></p>
<div>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm =
0cm 0cm"><p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-fam=
ily:=E5=AE=8B=E4=BD=93">=E5=8F=91=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</=
span></span></b><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:=
=E5=AE=8B=E4=BD=93"> Idr [<a href=3D"mailto:idr-bounces@ietf.org" target=3D=
"_blank">mailto:idr-bounces@ietf.org</a>]
</span><b><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93">=
=E4=BB=A3=E8=A1=A8 </span></b><span lang=3D"EN-US" style=3D"font-size:10.0p=
t;font-family:=E5=AE=8B=E4=BD=93">Susan Hares<br>
</span><b><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93">=
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span lang=3D"EN-US">:</span></span></b=
><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=
=93"> 2015</span><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=
=BD=93">=E5=B9=B4<span lang=3D"EN-US">10</span>=E6=9C=88<span lang=3D"EN-US=
">25</span>=E6=97=A5<span lang=3D"EN-US">
 22:07<br>
</span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></b><span=
 lang=3D"EN-US"> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">
idr@ietf.org</a><br>
</span><b>=E6=8A=84=E9=80=81<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> <a href=3D"mailto:jgs@bgp.nu" target=3D"_blank">
jgs@bgp.nu</a><br>
</span><b>=E4=B8=BB=E9=A2=98<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET update<u></u><u=
></u></span></span></p>
</div>
</div><p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></spa=
n></p><p class=3D"MsoNormal"><span lang=3D"EN-US">IDR WG members: <u></u><u=
></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u=
></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">Below is an upd=
ated agenda for the IDR interim on 10/26/2015.<u></u><u></u></span></p><p c=
lass=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p><p c=
lass=3D"MsoNormal"><span lang=3D"EN-US">Sue <u></u><u></u></span></p><p cla=
ss=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p><p cla=
ss=3D"MsoNormal"><span lang=3D"EN-US">------------<u></u><u></u></span></p>=
<p class=3D"MsoNormal"><span lang=3D"EN-US">IDR interim October 26, 2015 <u=
></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">10:00 - =
11:30am <u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US=
"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US=
">1. Chair&#39;s slides [10:00-10:05]<u></u><u></u></span></p><p class=3D"M=
soNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p><p class=3D"M=
soNormal"><span lang=3D"EN-US">1. draft-litkowski-idr-flowspec-interfaceset=
-01.txt<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US"=
>=C2=A0=C2=A0 speaker: Stephane Litowski=C2=A0 <u></u><u></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0Time: 10:05-10:1=
5<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=
=A0=C2=A0 <a href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-f=
lowspec-interfaceset/" target=3D"_blank">
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/=
</a><u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=
=C2=A0=C2=A0 <u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"=
EN-US">2. draft-hao-idr-flowspec-redirect-tunnel-00<u></u><u></u></span></p=
><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Weiguo H=
ao<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=
=A0=C2=A0 Time: 10:15 - 10:25 <u></u><u></u></span></p><p class=3D"MsoNorma=
l"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"http://datatracker.iet=
f.org/doc/draft-hao-idr-flowspec-redirect-tunnel/" target=3D"_blank">http:/=
/datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/</a><u></u=
><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=
 <u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=
=3D"EN-US">3. draft-vandevelde-idr-flowspec-path-redirect<u></u><u></u></sp=
an></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Gu=
nter Van De Velde<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=
=3D"EN-US">=C2=A0=C2=A0 Time: 10:25- 10:35<u></u><u></u></span></p><p class=
=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <a href=3D"http://datatrac=
ker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect/" target=3D"_b=
lank">
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect=
/</a><u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=
=C2=A0=C2=A0 <u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"=
EN-US">=C2=A0=C2=A0=C2=A0<u></u><u></u></span></p><p class=3D"MsoNormal"><s=
pan lang=3D"EN-US">4. Draft Name: draft-hao-idr-flowspec-nvo3-02
<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=
=C2=A0=C2=A0Speaker: Weiguo Hao<u></u><u></u></span></p><p class=3D"MsoNorm=
al"><span lang=3D"EN-US">=C2=A0=C2=A0 Duration: 10:35-10:40 <u></u><u></u><=
/span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/" targe=
t=3D"_blank">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</=
a><u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=
=A0=C2=A0 <u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-=
US">=C2=A0<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-=
US">5. draft-liang-idr-bgp-flowspec-label-01.txt.<u></u><u></u></span></p><=
p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: <u></u><u>=
</u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=
=A0Duration: 10:40-10:45 <u></u><u></u></span></p><p class=3D"MsoNormal"><s=
pan lang=3D"EN-US">=C2=A0=C2=A0<a href=3D"http://datatracker.ietf.org/doc/d=
raft-liang-idr-bgp-flowspec-label/" target=3D"_blank">http://datatracker.ie=
tf.org/doc/draft-liang-idr-bgp-flowspec-label/</a><u></u><u></u></span></p>=
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></sp=
an></p><p class=3D"MsoNormal"><span lang=3D"EN-US">6. draft-liang-idr-bgp-f=
lowspec-time<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"E=
N-US">=C2=A0=C2=A0 presenter: Jianjie You<u></u><u></u></span></p><p class=
=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 time: 10:45-10:55<u></u><u=
></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 <a=
 href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/=
" target=3D"_blank">
http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/</a><u></=
u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=
=A0<u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">7. Draft N=
ame: draft-li-idr-mpls-path-programming-02<u></u><u></u></span></p><p class=
=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Speaker: Zhenbin Li<u></u>=
<u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 =
Duration: 10:55-11:05 <u></u><u></u></span></p><p class=3D"MsoNormal"><span=
 lang=3D"EN-US">=C2=A0=C2=A0=C2=A0<a href=3D"http://datatracker.ietf.org/do=
c/draft-li-idr-mpls-path-programming/" target=3D"_blank">http://datatracker=
.ietf.org/doc/draft-li-idr-mpls-path-programming/</a><u></u><u></u></span><=
/p><p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span><=
/p><p class=3D"MsoNormal"><span lang=3D"EN-US">7. Draft Name: draft-li-idr-=
flowspec-rpd-01<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=
=3D"EN-US">=C2=A0=C2=A0 Speaker: Shunwan Zhuang<u></u><u></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 Duration: 11:05 - 11:=
15 <u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=
=A0=C2=A0=C2=A0<a href=3D"http://datatracker.ietf.org/doc/draft-li-idr-flow=
spec-rpd/" target=3D"_blank">http://datatracker.ietf.org/doc/draft-li-idr-f=
lowspec-rpd/</a><u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=
=3D"EN-US">=C2=A0=C2=A0 <u></u><u></u></span></p><p class=3D"MsoNormal"><sp=
an lang=3D"EN-US">8.=C2=A0 Discussion of Flowspec drafts<u></u><u></u></spa=
n></p><p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0 11:15 =
- 11:30am <u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-=
US">=C2=A0<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-=
US">=C2=A0Meeting Web-ex information <u></u><u></u></span></p><p class=3D"M=
soNormal"><span lang=3D"EN-US">=C2=A0Monday, October 26, 2015 <u></u><u></u=
></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">10:00 am=C2=A0 |=C2=
=A0 Eastern Daylight Time (New York, GMT-04:00)=C2=A0 |=C2=A0 2 hrs
<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u=
>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">webex =
infor: <u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US"=
><a href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e5=
99c3ff3143f" target=3D"_blank">https://ietf.webex.com/ietf/j.php?MTID=3Dmae=
6cf241d3adf214033e599c3ff3143f</a><u></u><u></u></span></p><p class=3D"MsoN=
ormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoN=
ormal"><span lang=3D"EN-US">Meeting number: =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 644 964 970 <u>
</u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">Meeting p=
assword:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 flow.in.nets<u></u=
><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=
=A0<u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=
=A0<u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">Join by ph=
one<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US"><a =
href=3D"tel:1-877-668-4493" target=3D"_blank">1-877-668-4493</a> Call-in to=
ll free number (US/Canada)<u></u><u></u></span></p><p class=3D"MsoNormal"><=
span lang=3D"EN-US"><a href=3D"tel:1-650-479-3208" target=3D"_blank">1-650-=
479-3208</a> Call-in toll number (US/Canada)<u></u><u></u></span></p><p cla=
ss=3D"MsoNormal"><span lang=3D"EN-US">Access code: 644 964 970<u></u><u></u=
></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u=
></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u=
></span></p>
</div>
</div>
</div>
</div>
</div>
</span></div>
<br>
_______________________________________________<br>
Idr mailing list<br>
<a href=3D"mailto:Idr@ietf.org" target=3D"_blank">Idr@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" rel=3D"noreferrer" ta=
rget=3D"_blank">https://www.ietf.org/mailman/listinfo/idr</a><br>
<br>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</div></div></span>
</div>

</blockquote></div><br></div>
</blockquote></div></div></div></blockquote></div><br></div>
</div></blockquote></div><br></div></div></div></blockquote></div><br></div=
>

--f46d043c7d80b20d4705230734a8--


From nobody Mon Oct 26 12:52:33 2015
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References: <009b01d10f2e$5cc28820$16479860$@ndzh.com> <5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5C638@nkgeml506-mbx.china.huawei.com> <4D6BC339-51BE-4F90-8858-9B81859858F0@alcatel-lucent.com> <CA+b+ERnU_sXmxzoEj9M=V+6_izqO2ZBTgS0QCJ0HF1h6qqXL-A@mail.gmail.com> <2F377A27-8529-416E-A3E8-BF2B3B6C9C50@alcatel-lucent.com> <CA+b+ERmnkajGwDSEDcPwMXj_QqCwAHydRgDe=Oyg+otpDTqY5A@mail.gmail.com> <1445881659836-b092aa37-9aa8905c-fae8f9db@icloud.com> <CA+b+ERm8PaptB-ZYPWT8M-hhUkABR_h2SQQXZQWVXCOHDVBsPA@mail.gmail.com> <42E7A0B2-5765-4F40-B908-216A95688690@icloud.com> <CA+b+ERmi_Hbd15VRdZz_bTQKPXVYjQmPDaQX2tFvAQrvyJpNdg@mail.gmail.com>
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Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiBJRFIgaW50ZXJpbSAoMTAvMjYvMjAxNSkgMTA6MDBh?= =?utf-8?q?m_-_11=3A30am_ET_update?=
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> On 26 Oct 2015, at 20:45, Robert Raszuk <robert@raszuk.net> wrote:
>=20
> > On PE1 the localised mapping of PATH_ID1 goes to Tunnel 1
> > On PE2 the localised mapping of PATH_ID1 goes to Tunnel 2
>=20
> That would be highly confusing operationally.=20
>=20

It is an example to make a point=E2=80=A6 Its upto the operator of the =
PE how this is practically achieved. Its advisable for him to create =
something that makes sense :-)


> > then the PATH_ID could seen as this VRF
>=20
> If so why not to use VRF which is already supported by all =
implementations? Having N ways to signal the same is never good idea.=20
>=20

Its not the same either=E2=80=A6 i hinted that this is an extreme =
use-case of PATH_IDs :-)=20


G/

> Moreover you are not to worry about new mapping entity on all PEs of =
PATH_IDs to forwarding.=20
>=20
> But at least you got my point :)
>=20
> Cheers,
> R.
>=20
>=20
>=20
>=20
> On Mon, Oct 26, 2015 at 8:33 PM, Gunter Van De Velde =
<guntervandeveldecc@icloud.com <mailto:guntervandeveldecc@icloud.com>> =
wrote:
> Ah=E2=80=A6 i think i see where the misunderstanding came from=E2=80=A6
>=20
> Assume:
> Flowspec rule 1 =3D [MATCH1] & [redirect_to_PATH_ID1]
>=20
> PATH_ID1 =3D redirect identifier to redirect_service_1
>=20
> Redirect service has localised meaning:
> On PE1 the localised mapping of PATH_ID1 goes to Tunnel 1
> On PE2 the localised mapping of PATH_ID1 goes to Tunnel 2
> Hence PATH_ID provides localised indirection, just like in the VRF =
case=E2=80=A6=20
> (the mapping of PATH_ID to the tunnel is done by a localised PATH_ID =
indexed table)
>=20
> i.e. look at an extreme use-case example: assume a VRF has only a =
single route (0/0) then the PATH_ID could=20
> seen as this VRF=E2=80=A6. it would result in exactly the same =
forwarding compared to using VRF redirect=20
> or PATH_ID redirect in this extreme case=E2=80=A6=20
>=20
>=20
> G/
>=20
>=20
>=20
>=20
>> On 26 Oct 2015, at 20:10, Robert Raszuk <robert@raszuk.net =
<mailto:robert@raszuk.net>> wrote:
>>=20
>> > I see no difference as with traditional flowspec where=20
>> > redirect is to VRF or even IP address... Its same situation=20
>> > there.
>>=20
>> I don't think it is same situation.=20
>>=20
>> Redirect to VRF provides local indirection. VRF can be the same on =
all PEs where you map redirected data to whatever you like.=20
>>=20
>> Redirect to IP also is very different as the IP address typically =
represents a single point (or anycast point) of processing device for =
all redirected flows from all PEs.=20
>>=20
>> The draft in the subject however as you have also explained targets =
to provide mapping to unique per PE PATH_IDs for the same flow.=20
>>=20
>> Perhaps you can illustrate on example how flowspec update coming from =
PE1 via RR can influence for a given NLRI matching traffic to take =
different PATH-IDs on PE2 and PE3.=20
>>=20
>> Cheers,
>> r.
>>=20
>>=20
>>=20
>>=20
>> On Mon, Oct 26, 2015 at 6:47 PM, Gunter Van De Velde =
<guntervandeveldecc@icloud.com <mailto:guntervandeveldecc@icloud.com>> =
wrote:
>> There is miscommunication somewhere.
>>=20
>> Why do i wanna send another PATH_ID in a new NLRI? That does indeed =
do what you indicate. However that is not the intention.
>>=20
>> I see no difference as with traditional flowspec where redirect is to =
VRF or even IP address... Its same situation there.
>>=20
>> G/
>>=20
>>=20
>>=20
>> Sent using CloudMagic Email =
<https://cloudmagic.com/k/d/mailapp?ct=3Dpa&cv=3D7.4.10&pv=3D6.0&source=3D=
email_footer_2>
>> On Mon, Oct 26, 2015 at 6:35 PM, Robert Raszuk <robert@raszuk.net =
<mailto:robert@raszuk.net>> wrote:
>>=20
>> Gunter,
>>=20
>> Sorry but I am afraid this does not work :(.=20
>>=20
>> BGP uses notion of implicit withdraw for a given NLRI.=20
>>=20
>> So for particular flow NLRI I can advertise only single PATH_ID as =
subsequent NLRI with different PATH_ID will be treated as withdraw of =
the former.=20
>>=20
>> So if indeed as you said "..each PE the redirect tunnel will share =
the unique PATH_ID .." that effectively means that for a given flow NLRI =
I can advertise redirect service to only one PE pretty much killing p2mp =
advantage of BGP and what's worse blocking from advertising the same =
flow NLRI with any different set of actions.=20
>>=20
>> Best,
>> R.
>>=20
>>=20
>>=20
>>=20
>> On Mon, Oct 26, 2015 at 6:15 PM, VAN DE VELDE, Gunter (Gunter) =
<gunter.van_de_velde@alcatel-lucent.com =
<mailto:gunter.van_de_velde@alcatel-lucent.com>> wrote:
>> Robert,
>>=20
>> Yeah, BGP is indeed p2mp relationship=E2=80=A6 This is important to =
keep in mind, and that it is exactly why PATH-ID makes sense.
>>=20
>> With 32-bit you have 2^32 and with 128-bit you have 2^128 unique =
identifiers. That is quite a lot and will serve redirect policies in =
most networks I would assume.
>>=20
>> In manual setup it is simple for a single PE:
>> Preconfigure the PE with a tunnel and map it to a given unique =
PATH_ID
>> This tunnel now exists, however it is not used
>>  Now the controller (i.e. vRR) sends a flow spec rule to identify the =
traffic using this tunnel and steers traffic into this tunnel
>> When you have multiple PE=E2=80=99s using a single redirect service:
>> Same setup as above, but on each PE the redirect tunnel will share =
the unique PATH_ID reflecting the redirect tunnel service
>> (there is no relationship that the destination is the same=E2=80=A6 =
just the redirect service is the same)
>> When you have 5000 of these Redirect services planned:
>> Manual config will make you go crazy very soon
>> The above can be 100% orchestrated or a mix of manual/orchestrated =
could be used
>>=20
>> The benefit of redirect-to-PATH_ID facilitates that network redirect =
service it decoupled from the tunnel creation/characteristics. hence the =
setup of a mp2p tunnel is beyond the scope the path_ID redirect draft if =
that happens to be the redirect service you had in mind.
>>=20
>> G/=20
>>=20
>>=20
>> From: <rraszuk@gmail.com <mailto:rraszuk@gmail.com>> on behalf of =
Robert Raszuk <robert@raszuk.net <mailto:robert@raszuk.net>>
>> Date: Monday 26 October 2015 at 17:41
>> To: Gunter Van de Velde <gunter.van_de_velde@alcatel-lucent.com =
<mailto:gunter.van_de_velde@alcatel-lucent.com>>
>> Cc: Lizhenbin <lizhenbin@huawei.com <mailto:lizhenbin@huawei.com>>, =
Susan Hares <shares@ndzh.com <mailto:shares@ndzh.com>>, "idr@ietf.org =
<mailto:idr@ietf.org>" <idr@ietf.org <mailto:idr@ietf.org>>, "jgs@bgp.nu =
<mailto:jgs@bgp.nu>" <jgs@bgp.nu <mailto:jgs@bgp.nu>>
>> Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
>>=20
>> Hi Gunter,
>>=20
>> Let's observe that BGP signalling is p2mp.=20
>>=20
>> Now let's also notice that as you correctly state TE tunnels are =
rather custom crafted p2p entities.=20
>>=20
>> Then natural question comes to mind ...=20
>>=20
>> How good does it serve to signal identical PATH_ID to all head ends =
for a given flow while what you need to do is to map it rather uniquely =
in the network ?
>>=20
>> While in theory one could construct number of mp2p TE forwarding =
graphs each with identical PATH_ID on a per flow basis I bet in practice =
this was not the application you had in mind as its opex would be rather =
high as compared to real practical usefulness :)
>>=20
>> Side question ... How are you going to provision mp2p TE ? Are you =
going to dust-off some proposals for it from the past ? Example: =
https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06 =
<https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06>=20
>>=20
>> Or was perhaps your plan to provision number of p2p TE tunnels from =
PCE/Controller with the identical PATH_IDs ?=20
>>=20
>> Cheers,
>> R.
>>=20
>>=20
>> On Mon, Oct 26, 2015 at 5:26 PM, VAN DE VELDE, Gunter (Gunter) =
<gunter.van_de_velde@alcatel-lucent.com =
<mailto:gunter.van_de_velde@alcatel-lucent.com>> wrote:
>> Hi Robin,
>>=20
>> Thanks for your note.
>>=20
>> A tunnel is not always going over shortest path. Some tunnels are TE =
tunnels and are deliberately not going over a shortest path. This is =
something that draft-rosen-idr-tunnel-encaps-00 will not help to signal =
because the tunnel-encap attribute indicates tunnel parameters used by =
the tail-end.
>>=20
>> If a redirect tunnel represents a particular redirect/steering =
service (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) =
then it does become rather complex for BGP as signalling technology =
because a tunnel relationship is a unique between 'a headend' and =E2=80=98=
a tailed' device. It seems better to leave tunnel-setup to dedicated =
tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.
>>=20
>> The draft redirect-to-PATH_ID is providing the means to signal a =
flow-based redirect/steering service, and have each recipient router =
identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable fashion.
>>=20
>> Kind Regards,
>> G/
>>=20
>>=20
>>=20
>> From:  Idr <idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>> on =
behalf of Lizhenbin <lizhenbin@huawei.com <mailto:lizhenbin@huawei.com>>
>> Date: Monday 26 October 2015 at 16:51
>> To: Susan Hares <shares@ndzh.com <mailto:shares@ndzh.com>>, =
"idr@ietf.org <mailto:idr@ietf.org>" <idr@ietf.org =
<mailto:idr@ietf.org>>
>> Cc: "jgs@bgp.nu <mailto:jgs@bgp.nu>" <jgs@bgp.nu <mailto:jgs@bgp.nu>>
>> Subject: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
>>=20
>> Hi Gunter,
>>=20
>> Regarding your presentation, I have following comments:
>>=20
>> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal =
tunnel setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer =
traffic to the tunnel instead of signal tunnel setup.
>>=20
>> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the =
draft make you confused? We just hope to  just reuses the attributes of =
to specify the tunnel type to help steering
>>=20
>> the traffic to tunnel. If this is not a good way, maybe we can define =
new attributes.
>>=20
>> =20
>>=20
>> =20
>>=20
>> Best Regards,
>>=20
>> Robin
>>=20
>> =20
>>=20
>> =20
>>=20
>> =20
>>=20
>> =20
>>=20
>> =20
>>=20
>> =E5=8F=91=E4=BB=B6=E4=BA=BA: Idr [mailto:idr-bounces@ietf.org =
<mailto:idr-bounces@ietf.org>] =E4=BB=A3=E8=A1=A8 Susan Hares
>> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8825=E6=97=A5=
 22:07
>> =E6=94=B6=E4=BB=B6=E4=BA=BA: idr@ietf.org <mailto:idr@ietf.org>
>> =E6=8A=84=E9=80=81: jgs@bgp.nu <mailto:jgs@bgp.nu>
>> =E4=B8=BB=E9=A2=98: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am =
ET update
>>=20
>> =20
>>=20
>> IDR WG members:
>>=20
>> =20
>>=20
>> Below is an updated agenda for the IDR interim on 10/26/2015.
>>=20
>> =20
>>=20
>> Sue
>>=20
>> =20
>>=20
>> ------------
>>=20
>> IDR interim October 26, 2015
>>=20
>> 10:00 - 11:30am
>>=20
>> =20
>>=20
>> 1. Chair's slides [10:00-10:05]
>>=20
>> =20
>>=20
>> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>>=20
>>    speaker: Stephane Litowski=20
>>=20
>>    Time: 10:05-10:15
>>=20
>>    =
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset=
/ =
<https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/>
>>  =20
>>=20
>> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>>=20
>>    Speaker: Weiguo Hao
>>=20
>>    Time: 10:15 - 10:25
>>=20
>>    =
http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/>
>>  =20
>>=20
>>   =20
>>=20
>> 3. draft-vandevelde-idr-flowspec-path-redirect
>>=20
>>    Speaker: Gunter Van De Velde
>>=20
>>    Time: 10:25- 10:35
>>=20
>>    =
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirec=
t/ =
<http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/>
>>  =20
>>=20
>>   =20
>>=20
>> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02
>>=20
>>    Speaker: Weiguo Hao
>>=20
>>    Duration: 10:35-10:40
>>=20
>>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/>
>>  =20
>>=20
>> =20
>>=20
>> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>>=20
>>    Speaker:
>>=20
>>    Duration: 10:40-10:45
>>=20
>>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/>
>>  =20
>>=20
>> 6. draft-liang-idr-bgp-flowspec-time
>>=20
>>    presenter: Jianjie You
>>=20
>>    time: 10:45-10:55
>>=20
>>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/>
>> =20
>>=20
>> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>>=20
>>    Speaker: Zhenbin Li
>>=20
>>    Duration: 10:55-11:05
>>=20
>>    =
http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/ =
<http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/>
>> =20
>>=20
>> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>>=20
>>    Speaker: Shunwan Zhuang
>>=20
>>    Duration: 11:05 - 11:15
>>=20
>>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/ =
<http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/>
>>  =20
>>=20
>> 8.  Discussion of Flowspec drafts
>>=20
>>     11:15 - 11:30am
>>=20
>> =20
>>=20
>>  Meeting Web-ex information
>>=20
>>  Monday, October 26, 2015
>>=20
>> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs
>>=20
>> =20
>>=20
>> webex infor:
>>=20
>> =
https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f=
 =
<https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f>
>> =20
>>=20
>> Meeting number:            644 964 970
>>=20
>> Meeting password:         flow.in.nets
>>=20
>> =20
>>=20
>> =20
>>=20
>> Join by phone
>>=20
>> 1-877-668-4493 <tel:1-877-668-4493> Call-in toll free number =
(US/Canada)
>>=20
>> 1-650-479-3208 <tel:1-650-479-3208> Call-in toll number (US/Canada)
>>=20
>> Access code: 644 964 970
>>=20
>> =20
>>=20
>> =20
>>=20
>>=20
>> _______________________________________________
>> Idr mailing list
>> Idr@ietf.org <mailto:Idr@ietf.org>
>> https://www.ietf.org/mailman/listinfo/idr =
<https://www.ietf.org/mailman/listinfo/idr>
>>=20
>>=20
>>=20
>>=20
>=20
>=20


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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote type=3D"cite" class=3D""><div =
class=3D"">On 26 Oct 2015, at 20:45, Robert Raszuk &lt;<a =
href=3D"mailto:robert@raszuk.net" class=3D"">robert@raszuk.net</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><div =
dir=3D"ltr" class=3D""><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><div =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D"">&gt; =
On PE1 the localised mapping of PATH_ID1 goes to Tunnel 1</div><div =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D"">&gt; =
On PE2 the localised mapping of PATH_ID1 goes to Tunnel 2</div><div =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><br =
class=3D""></div><div =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D"">That =
would be highly confusing operationally.&nbsp;</div><div =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><br =
class=3D""></div></div></div></div></blockquote><div><br =
class=3D""></div><div>It is an example to make a point=E2=80=A6 Its upto =
the operator of the PE how this is practically achieved. Its advisable =
for him to create something that makes sense :-)</div><div><br =
class=3D""></div><br class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D""><div dir=3D"ltr" class=3D""><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><div =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><div =
style=3D"font-size:12.8px" class=3D"">&gt; then the PATH_ID =
could&nbsp;<span style=3D"font-size:12.8px" class=3D"">seen as this =
VRF</span></div><div style=3D"font-size:12.8px" class=3D""><span =
style=3D"font-size:12.8px" class=3D""><br class=3D""></span></div><div =
style=3D"font-size:12.8px" class=3D""><span style=3D"font-size:12.8px" =
class=3D"">If so why not to use VRF which is already supported by all =
implementations? Having N ways to signal the same is never good =
idea.&nbsp;</span></div><div style=3D"font-size:12.8px" class=3D""><span =
style=3D"font-size:12.8px" class=3D""><br =
class=3D""></span></div></div></div></div></div></blockquote><div><br =
class=3D""></div><div>Its not the same either=E2=80=A6 i hinted that =
this is an extreme use-case of PATH_IDs :-)&nbsp;</div><div><br =
class=3D""></div><div><br class=3D""></div><div>G/</div><div><br =
class=3D""></div><blockquote type=3D"cite" class=3D""><div class=3D""><div=
 dir=3D"ltr" class=3D""><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><div =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><div =
style=3D"font-size:12.8px" class=3D""><span style=3D"font-size:12.8px" =
class=3D"">Moreover you are not to worry about new mapping entity on all =
PEs of PATH_IDs to forwarding.&nbsp;</span></div><div =
style=3D"font-size:12.8px" class=3D""><span style=3D"font-size:12.8px" =
class=3D""><br class=3D""></span></div><div style=3D"font-size:12.8px" =
class=3D""><span style=3D"font-size:12.8px" class=3D"">But at least you =
got my point :)</span></div><div style=3D"font-size:12.8px" class=3D""><br=
 class=3D""></div></div></div></div></div></blockquote><blockquote =
type=3D"cite" class=3D""><div class=3D""><div dir=3D"ltr" class=3D""><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><div =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><div =
style=3D"font-size:12.8px" class=3D""><span style=3D"font-size:12.8px" =
class=3D"">Cheers,<br class=3D"">R.</span></div><div =
style=3D"font-size:12.8px" class=3D""><span style=3D"font-size:12.8px" =
class=3D""><br class=3D""></span></div><div style=3D"font-size:12.8px" =
class=3D""><span style=3D"font-size:12.8px" class=3D""><br =
class=3D""></span></div><div style=3D"font-size:12.8px" class=3D""><span =
style=3D"font-size:12.8px" class=3D""><br =
class=3D""></span></div></div></div></div><div class=3D"gmail_extra"><br =
class=3D""><div class=3D"gmail_quote">On Mon, Oct 26, 2015 at 8:33 PM, =
Gunter Van De Velde <span dir=3D"ltr" class=3D"">&lt;<a =
href=3D"mailto:guntervandeveldecc@icloud.com" target=3D"_blank" =
class=3D"">guntervandeveldecc@icloud.com</a>&gt;</span> wrote:<br =
class=3D""><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex"><div =
style=3D"word-wrap:break-word" class=3D""><div class=3D"">Ah=E2=80=A6 i =
think i see where the misunderstanding came from=E2=80=A6</div><div =
class=3D""><br class=3D""></div><div class=3D"">Assume:</div><div =
class=3D"">Flowspec rule 1 =3D [MATCH1] &amp; =
[redirect_to_PATH_ID1]</div><div class=3D""><br class=3D""></div><div =
class=3D"">PATH_ID1 =3D redirect identifier to =
redirect_service_1</div><div class=3D""><br class=3D""></div><div =
class=3D"">Redirect service has localised meaning:</div><div class=3D"">On=
 PE1 the localised mapping of PATH_ID1 goes to Tunnel 1</div><div =
class=3D"">On PE2 the localised mapping of PATH_ID1 goes to Tunnel =
2</div><div class=3D"">Hence PATH_ID provides localised indirection, =
just like in the VRF case=E2=80=A6&nbsp;</div><div class=3D"">(the =
mapping of PATH_ID to the tunnel is done by a localised PATH_ID indexed =
table)</div><div class=3D""><br class=3D""></div><div class=3D"">i.e. =
look at an extreme use-case example: assume a VRF has only a single =
route (0/0) then the PATH_ID could&nbsp;</div><div class=3D"">seen as =
this VRF=E2=80=A6. it would result in exactly the same forwarding =
compared to using VRF redirect&nbsp;</div><div class=3D"">or PATH_ID =
redirect in this extreme case=E2=80=A6&nbsp;</div><span =
class=3D"HOEnZb"><font color=3D"#888888" class=3D""><div class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""></div><div =
class=3D"">G/</div></font></span><div class=3D""><div class=3D"h5"><div =
class=3D""><br class=3D""></div><div class=3D""><br class=3D""></div><div =
class=3D""><br class=3D""></div><br class=3D""><div class=3D""><blockquote=
 type=3D"cite" class=3D""><div class=3D"">On 26 Oct 2015, at 20:10, =
Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_blank" =
class=3D"">robert@raszuk.net</a>&gt; wrote:</div><br class=3D""><div =
class=3D""><div dir=3D"ltr" class=3D""><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D"">&gt; =
I see no difference as with traditional flowspec =
where&nbsp;</span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D"">&gt; =
redirect is to VRF or even IP address... Its same =
situation&nbsp;</span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D"">&gt; =
there.</span><br class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><br =
class=3D""></span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D"">I =
don't think it is same situation.&nbsp;</span></div><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><br =
class=3D""></span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" =
class=3D"">Redirect to VRF provides local indirection. VRF can be the =
same on all PEs where you map redirected data to whatever you =
like.&nbsp;</span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><br =
class=3D""></span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" =
class=3D"">Redirect to IP also is very different as the IP address =
typically represents a single point (or anycast point) of processing =
device for all redirected flows from all PEs.&nbsp;</span></div><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"font-family:arial,sans-serif;font-size:12.8px" class=3D""><br =
class=3D""></span></div><div class=3D"gmail_default"><span =
style=3D"font-size:12.8px" class=3D"">The draft in the subject however =
as you have also explained targets to provide mapping to unique per PE =
PATH_IDs for the same flow.&nbsp;</span></div><div =
class=3D"gmail_default"><span style=3D"font-size:12.8px" class=3D""><br =
class=3D""></span></div><div class=3D"gmail_default"><span =
style=3D"font-size:12.8px" class=3D"">Perhaps you can illustrate on =
example how flowspec update coming from PE1 via RR can influence for a =
given NLRI matching traffic to take different PATH-IDs on PE2 and =
PE3.&nbsp;</span></div><div class=3D"gmail_default"><span =
style=3D"font-size:12.8px" class=3D""><br class=3D""></span></div><div =
class=3D"gmail_default"><span style=3D"font-size:12.8px" =
class=3D"">Cheers,<br class=3D"">r.</span></div><div =
class=3D"gmail_default"><span style=3D"font-size:12.8px" class=3D""><br =
class=3D""></span></div><div class=3D"gmail_default"><span =
style=3D"font-size:12.8px" class=3D""><br class=3D""></span></div><div =
class=3D"gmail_default"><span style=3D"font-size:12.8px" class=3D""><br =
class=3D""></span></div></div><div class=3D"gmail_extra"><br =
class=3D""><div class=3D"gmail_quote">On Mon, Oct 26, 2015 at 6:47 PM, =
Gunter Van De Velde <span dir=3D"ltr" class=3D"">&lt;<a =
href=3D"mailto:guntervandeveldecc@icloud.com" target=3D"_blank" =
class=3D"">guntervandeveldecc@icloud.com</a>&gt;</span> wrote:<br =
class=3D""><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir=3D"ltr" =
class=3D"">There is miscommunication somewhere.</p><p dir=3D"ltr" =
class=3D"">Why do i wanna send another PATH_ID in a new NLRI? That does =
indeed do what you indicate. However that is not the intention.</p><p =
dir=3D"ltr" class=3D"">I see no difference as with traditional flowspec =
where redirect is to VRF or even IP address... Its same situation there. =
</p><p dir=3D"ltr" class=3D"">G/</p>
<div class=3D""> <br class=3D""><br class=3D"">Sent using <a =
href=3D"https://cloudmagic.com/k/d/mailapp?ct=3Dpa&amp;cv=3D7.4.10&amp;pv=3D=
6.0&amp;source=3Demail_footer_2" target=3D"_blank" class=3D"">CloudMagic =
Email</a> </div><div class=3D""><div class=3D""><div =
style=3D"color:#787878" class=3D"">On Mon, Oct 26, 2015 at 6:35 PM, =
Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_blank" =
class=3D"">robert@raszuk.net</a>&gt; wrote:</div><br class=3D""><div =
style=3D"background:rgb(255,255,255)" class=3D""><blockquote class=3D""> =
<div dir=3D"ltr" class=3D""><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Gunter,</=
div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Sorry =
but I am afraid this does not work :(.&nbsp;</div><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">BGP =
uses notion of implicit withdraw for a given NLRI.&nbsp;</div><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">So for =
particular flow NLRI I can advertise only single PATH_ID as subsequent =
NLRI with different PATH_ID will be treated as withdraw of the =
former.&nbsp;</div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">So if =
indeed as you said "..each PE the redirect tunnel will share the unique =
PATH_ID .." that effectively means that for a given flow NLRI I can =
advertise redirect service to only one PE pretty much killing p2mp =
advantage of BGP and what's worse blocking from advertising the same =
flow NLRI with any different set of actions.&nbsp;</div><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Best,</di=
v><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">R.</div><=
div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div></div><div class=3D"gmail_extra"><br class=3D""><div =
class=3D"gmail_quote">On Mon, Oct 26, 2015 at 6:15 PM, VAN DE VELDE, =
Gunter (Gunter) <span dir=3D"ltr" class=3D"">&lt;<a =
href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank" =
class=3D"">gunter.van_de_velde@alcatel-lucent.com</a>&gt;</span> =
wrote:<br class=3D""><blockquote class=3D"gmail_quote" style=3D"margin:0 =
0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">



<div =
style=3D"word-wrap:break-word;font-size:14px;font-family:Calibri,sans-seri=
f" class=3D"">
<div class=3D"">
<div class=3D"">Robert,</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Yeah, BGP is indeed p2mp relationship=E2=80=A6 This is =
important to keep in mind, and that it is exactly why PATH-ID makes =
sense.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">With 32-bit you have 2^32 and with 128-bit you have =
2^128 unique identifiers. That is quite a lot and will serve redirect =
policies in most networks I would assume.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">In manual setup it is simple for a single PE:</div>
<ul class=3D"">
<li class=3D"">Preconfigure the PE with a tunnel and map it to a given =
unique PATH_ID</li><li class=3D"">This tunnel now exists, however it is =
not used</li><li class=3D"">&nbsp;Now the controller (i.e. vRR) sends a =
flow spec rule to identify the traffic using this tunnel and steers =
traffic into this tunnel</li></ul>
<div class=3D"">When you have multiple PE=E2=80=99s using a single =
redirect service:</div>
<ul class=3D"">
<li class=3D"">Same setup as above, but on each PE the redirect tunnel =
will share the unique PATH_ID reflecting the redirect tunnel =
service</li><li class=3D"">(there is no relationship that the =
destination is the same=E2=80=A6 just the redirect service is the =
same)</li></ul>
<div class=3D"">When you have 5000 of these Redirect services =
planned:</div>
<ul class=3D"">
<li class=3D"">Manual config will make you go crazy very soon</li><li =
class=3D"">The above can be 100% orchestrated or a mix of =
manual/orchestrated could be used</li></ul>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">The benefit of redirect-to-PATH_ID facilitates that =
network redirect service it decoupled from the tunnel =
creation/characteristics. hence the setup of a mp2p tunnel is beyond the =
scope the path_ID redirect draft if that happens to be the redirect =
service
 you had in mind.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">G/&nbsp;</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">
<div class=3D""></div>
</div>
</div>
<div class=3D""><br class=3D"">
</div>
<span class=3D"">
<div =
style=3D"font-family:Calibri;font-size:12pt;text-align:left;border-width:1=
pt medium medium;border-style:solid none none;padding:3pt 0in =
0in;border-top-color:rgb(181,196,223)" class=3D"">
<span style=3D"font-weight:bold" class=3D"">From: </span>&lt;<a =
href=3D"mailto:rraszuk@gmail.com" target=3D"_blank" =
class=3D"">rraszuk@gmail.com</a>&gt; on behalf of Robert Raszuk &lt;<a =
href=3D"mailto:robert@raszuk.net" target=3D"_blank" =
class=3D"">robert@raszuk.net</a>&gt;<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">Date: </span>Monday 26 =
October 2015 at 17:41<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">To: </span>Gunter Van de =
Velde &lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" =
target=3D"_blank" =
class=3D"">gunter.van_de_velde@alcatel-lucent.com</a>&gt;<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">Cc: </span>Lizhenbin &lt;<a =
href=3D"mailto:lizhenbin@huawei.com" target=3D"_blank" =
class=3D"">lizhenbin@huawei.com</a>&gt;, Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com" target=3D"_blank" =
class=3D"">shares@ndzh.com</a>&gt;, "<a href=3D"mailto:idr@ietf.org" =
target=3D"_blank" class=3D"">idr@ietf.org</a>" &lt;<a =
href=3D"mailto:idr@ietf.org" target=3D"_blank" =
class=3D"">idr@ietf.org</a>&gt;,
 "<a href=3D"mailto:jgs@bgp.nu" target=3D"_blank" =
class=3D"">jgs@bgp.nu</a>" &lt;<a href=3D"mailto:jgs@bgp.nu" =
target=3D"_blank" class=3D"">jgs@bgp.nu</a>&gt;<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">Subject: </span>Re: [Idr] =
Regarding draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D:=
 IDR interim (10/26/2015) 10:00am - 11:30am ET update<br class=3D"">
</div><div class=3D""><div class=3D"">
<div class=3D""><br class=3D"">
</div>
<div class=3D"">
<div class=3D"">
<div dir=3D"ltr" class=3D"">
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Hi Gunter,</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Let's observe that BGP signalling is p2mp.&nbsp;</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Now let's also notice that as you correctly state TE tunnels are rather =
custom crafted p2p entities.&nbsp;</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Then natural question comes to mind ...&nbsp;</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
How good does it serve to signal identical PATH_ID to all head ends for =
a given flow while what you need to do is to map it rather uniquely in =
the network ?</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
While in theory one could construct number of mp2p TE forwarding graphs =
each with identical PATH_ID on a per flow basis I bet in practice this =
was not the application you had in mind as its opex would be rather high =
as compared to real practical usefulness
 :)</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Side question ... How are you going to provision mp2p TE ? Are you going =
to dust-off some proposals for it from the past ? Example:
<a href=3D"https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06"=
 target=3D"_blank" =
class=3D"">https://tools.ietf.org/html/draft-yasukawa-mpls-mp2p-rsvpte-06<=
/a>&nbsp;</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Or was perhaps your plan to provision number of p2p TE tunnels from =
PCE/Controller with the identical PATH_IDs ?&nbsp;</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
Cheers,<br class=3D"">
R.</div>
<div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">
<br class=3D"">
</div>
</div>
<div class=3D"gmail_extra"><br class=3D"">
<div class=3D"gmail_quote">On Mon, Oct 26, 2015 at 5:26 PM, VAN DE =
VELDE, Gunter (Gunter)
<span dir=3D"ltr" class=3D"">&lt;<a =
href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank" =
class=3D"">gunter.van_de_velde@alcatel-lucent.com</a>&gt;</span> =
wrote:<br class=3D"">
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div =
style=3D"word-wrap:break-word;font-size:14px;font-family:Calibri,sans-seri=
f" class=3D"">
<div class=3D"">
<div class=3D"">Hi Robin,</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Thanks for your note.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">A tunnel is not always going over shortest path. Some =
tunnels are TE tunnels and are deliberately not going over a shortest =
path. This is something that&nbsp;<span style=3D"color:rgb(31,73,125)" =
class=3D"">draft-rosen-idr-tunnel-encaps-00&nbsp;</span>will not help to =
signal
 because the tunnel-encap attribute indicates tunnel parameters used by =
the tail-end.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">If a redirect tunnel represents a particular =
redirect/steering service (better delay, less packet loss, non-SRLG, =
more BW, etc=E2=80=A6) then it does become rather complex for BGP as =
signalling technology because a tunnel relationship is a unique between =
'a headend'
 and =E2=80=98a tailed' device. It seems better to leave tunnel-setup to =
dedicated tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">The draft redirect-to-PATH_ID is providing the means to =
signal a flow-based redirect/steering service, and have each recipient =
router identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup
 complexity to be taken away from BGP, while at the same time BGP is =
doing what it is very good at doing: "It signals a policy=E2=80=9D in =
reliable fashion.</div>
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Kind Regards,</div>
<div class=3D"">G/</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<span class=3D"">
<div =
style=3D"font-family:Calibri;font-size:12pt;text-align:left;border-width:1=
pt medium medium;border-style:solid none none;padding:3pt 0in =
0in;border-top-color:rgb(181,196,223)" class=3D"">
<span style=3D"font-weight:bold" class=3D"">From:&nbsp;</span> Idr =
&lt;<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank" =
class=3D"">idr-bounces@ietf.org</a>&gt; on behalf of Lizhenbin &lt;<a =
href=3D"mailto:lizhenbin@huawei.com" target=3D"_blank" =
class=3D"">lizhenbin@huawei.com</a>&gt;<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">Date: </span>Monday 26 =
October 2015 at 16:51<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">To: </span>Susan Hares =
&lt;<a href=3D"mailto:shares@ndzh.com" target=3D"_blank" =
class=3D"">shares@ndzh.com</a>&gt;, "<a href=3D"mailto:idr@ietf.org" =
target=3D"_blank" class=3D"">idr@ietf.org</a>" &lt;<a =
href=3D"mailto:idr@ietf.org" target=3D"_blank" =
class=3D"">idr@ietf.org</a>&gt;<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">Cc: </span>"<a =
href=3D"mailto:jgs@bgp.nu" target=3D"_blank" class=3D"">jgs@bgp.nu</a>" =
&lt;<a href=3D"mailto:jgs@bgp.nu" target=3D"_blank" =
class=3D"">jgs@bgp.nu</a>&gt;<br class=3D"">
<span style=3D"font-weight:bold" class=3D"">Subject: </span>[Idr] =
Regarding draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D:=
 IDR interim (10/26/2015) 10:00am - 11:30am ET update<br class=3D"">
</div>
<div class=3D"">
<div class=3D"">
<div class=3D""><br class=3D"">
</div>
<div class=3D"">
<div lang=3D"ZH-CN" class=3D"">
<div class=3D""><p class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D"">Hi Gunter,<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d" =
class=3D"">Regarding your presentation, I have following comments:<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d" class=3D"">Do =
you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel =
setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic =
to the tunnel instead of signal tunnel
 setup. <u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D"">I am not sure if the =
reuse of draft-rosen-idr-tunnel-encaps-00 in the draft make you =
confused? We just hope to &nbsp;just reuses the attributes of to specify =
the tunnel type to help steering
<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D"">the traffic to =
tunnel. If this is not a good way, maybe we can define new attributes.<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D"">Best Regards,<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d" class=3D"">Robin<u=
 class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
style=3D"font-size:10.5pt;color:#1f497d" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p>
<div class=3D"">
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt =
0cm 0cm 0cm" class=3D""><p class=3D"MsoNormal"><b class=3D""><span =
style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93" =
class=3D"">=E5=8F=91=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US" =
class=3D"">:</span></span></b><span lang=3D"EN-US" =
style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93" class=3D""> =
Idr [<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank" =
class=3D"">mailto:idr-bounces@ietf.org</a>]
</span><b class=3D""><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=
=E4=BD=93" class=3D"">=E4=BB=A3=E8=A1=A8 </span></b><span lang=3D"EN-US" =
style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93" class=3D"">Susan=
 Hares<br class=3D"">
</span><b class=3D""><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=
=E4=BD=93" class=3D"">=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span =
lang=3D"EN-US" class=3D"">:</span></span></b><span lang=3D"EN-US" =
style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93" class=3D""> =
2015</span><span style=3D"font-size:10.0pt;font-family:=E5=AE=8B=E4=BD=93"=
 class=3D"">=E5=B9=B4<span lang=3D"EN-US" class=3D"">10</span>=E6=9C=88<sp=
an lang=3D"EN-US" class=3D"">25</span>=E6=97=A5<span lang=3D"EN-US" =
class=3D"">
 22:07<br class=3D"">
</span><b class=3D"">=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US" =
class=3D"">:</span></b><span lang=3D"EN-US" class=3D""> <a =
href=3D"mailto:idr@ietf.org" target=3D"_blank" class=3D"">
idr@ietf.org</a><br class=3D"">
</span><b class=3D"">=E6=8A=84=E9=80=81<span lang=3D"EN-US" =
class=3D"">:</span></b><span lang=3D"EN-US" class=3D""> <a =
href=3D"mailto:jgs@bgp.nu" target=3D"_blank" class=3D"">
jgs@bgp.nu</a><br class=3D"">
</span><b class=3D"">=E4=B8=BB=E9=A2=98<span lang=3D"EN-US" =
class=3D"">:</span></b><span lang=3D"EN-US" class=3D""> [Idr] IDR =
interim (10/26/2015) 10:00am - 11:30am ET update<u class=3D""></u><u =
class=3D""></u></span></span></p>
</div>
</div><p class=3D"MsoNormal"><span lang=3D"EN-US" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">IDR WG members: <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">Below is an updated agenda for the IDR interim on =
10/26/2015.<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">Sue <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">------------<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">IDR interim October =
26, 2015 <u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">10:00 - 11:30am <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">1. Chair's slides [10:00-10:05]<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D""><u class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">1. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp; speaker: Stephane Litowski&nbsp; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;Time: 10:05-10:15<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <a =
href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-inte=
rfaceset/" target=3D"_blank" class=3D"">
=
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset=
/</a><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">2. draft-hao-idr-flowspec-redirect-tunnel-00<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Speaker: Weiguo Hao<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Time: 10:15 - 10:25 <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tu=
nnel/" target=3D"_blank" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect=
-tunnel/</a><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">3. draft-vandevelde-idr-flowspec-path-redirect<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Speaker: Gunter Van De Velde<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Time: 10:25- 10:35<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <a =
href=3D"http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path=
-redirect/" target=3D"_blank" class=3D"">
=
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirec=
t/</a><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">4. Draft Name: draft-hao-idr-flowspec-nvo3-02
<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;&nbsp;Speaker: Weiguo Hao<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp; Duration: 10:35-10:40 <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/" =
target=3D"_blank" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a=
><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">5. draft-liang-idr-bgp-flowspec-label-01.txt.<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Speaker: <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;&nbsp;Duration: 10:40-10:45 <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label=
/" target=3D"_blank" =
class=3D"">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-la=
bel/</a><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">6. draft-liang-idr-bgp-flowspec-time<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; presenter: Jianjie You<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; time: 10:45-10:55<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/=
" target=3D"_blank" class=3D"">
http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/</a><u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">7. Draft Name: draft-li-idr-mpls-path-programming-02<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Speaker: Zhenbin Li<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp; Duration: 10:55-11:05 <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming=
/" target=3D"_blank" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</a><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">7. Draft Name: =
draft-li-idr-flowspec-rpd-01<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp; Speaker: Shunwan Zhuang<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp; Duration: 11:05 - 11:15 <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/" =
target=3D"_blank" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/</a><=
u class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span=
 lang=3D"EN-US" class=3D"">&nbsp;&nbsp; <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">8.&nbsp; Discussion of Flowspec drafts<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;&nbsp;&nbsp; 11:15 - 11:30am <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D"">&nbsp;<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;Meeting Web-ex =
information <u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">&nbsp;Monday, =
October 26, 2015 <u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">10:00 am&nbsp; =
|&nbsp; Eastern Daylight Time (New York, GMT-04:00)&nbsp; |&nbsp; 2 hrs
<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">webex infor: <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><a =
href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c=
3ff3143f" target=3D"_blank" =
class=3D"">https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e5=
99c3ff3143f</a><u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">Meeting number: =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 964 970 =
<u class=3D"">
</u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">Meeting =
password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; flow.in.nets<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D""><u class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D"">Join by phone<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><a href=3D"tel:1-877-668-4493" target=3D"_blank"=
 class=3D"">1-877-668-4493</a> Call-in toll free number (US/Canada)<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D""><a href=3D"tel:1-650-479-3208" target=3D"_blank"=
 class=3D"">1-650-479-3208</a> Call-in toll number (US/Canada)<u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
lang=3D"EN-US" class=3D"">Access code: 644 964 970<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" =
class=3D""><u class=3D""></u>&nbsp;<u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-US" class=3D""><u =
class=3D""></u>&nbsp;<u class=3D""></u></span></p>
</div>
</div>
</div>
</div>
</div>
</span></div>
<br class=3D"">
_______________________________________________<br class=3D"">
Idr mailing list<br class=3D"">
<a href=3D"mailto:Idr@ietf.org" target=3D"_blank" =
class=3D"">Idr@ietf.org</a><br class=3D"">
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" rel=3D"noreferrer" =
target=3D"_blank" =
class=3D"">https://www.ietf.org/mailman/listinfo/idr</a><br class=3D"">
<br class=3D"">
</blockquote>
</div>
<br class=3D"">
</div>
</div>
</div>
</div></div></span>
</div>

</blockquote></div><br class=3D""></div>
</blockquote></div></div></div></blockquote></div><br class=3D""></div>
</div></blockquote></div><br =
class=3D""></div></div></div></blockquote></div><br class=3D""></div>
</div></blockquote></div><br class=3D""></body></html>=

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From: Haoweiguo <haoweiguo@huawei.com>
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--_000_DD5FC8DE455C3348B94340C0AB5517334F8D370Ankgeml501mbschi_
Content-Type: text/html; charset="gb2312"
Content-Transfer-Encoding: quoted-printable

<html dir=3D"ltr">
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<style id=3D"owaParaStyle">P {
	MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px
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</style>
</head>
<body style=3D"FONT-FAMILY: Calibri,sans-serif; WORD-WRAP: break-word; COLO=
R: rgb(0,0,0); FONT-SIZE: 14px" fPStyle=3D"1" ocsi=3D"0">
<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">
<p><font size=3D"3" face=3D"Times New Roman">Hi Gunter,</font></p>
<p><font size=3D"3" face=3D"Times New Roman">Understood your design method =
is to just specify PATH_ID in flowspec message, and let the routers do loca=
l recursive action to select a set of specific tunnel(s), the tunnel and PA=
TH_ID association should be configured
 beforehand at each router. The BGP flowspec initiator doesn't need to spec=
ify detail tunnel attributes, the flowspec message is tunnel semantic agnos=
tic. The router local decision is totally unrestrictive, the validation and=
 security seems to be hard to be
 controlled.</font></p>
<p><font size=3D"3" face=3D"Times New Roman">In traditional BGP flowspec de=
signing, BGP flowspec initiator specifies detail match fields and actions, =
the routers only enforce the actions without any flexibility for local deci=
sion. If using the traditional method,
 you worry about the complexity to specify detail tunnel attributes. </font=
></p>
<p><font size=3D"3" face=3D"Times New Roman">If the BGP flowspec initiator =
only cares about the redirect target IP address and tunnel type like NVO3, =
the tunnel attribute only need to include head-end information.
</font><font size=3D"3" face=3D"Times New Roman">The attribute can be descr=
ibed by <span style=3D"COLOR: rgb(31,73,125)">
draft-rosen-idr-tunnel-encaps-00, we only need to extend the draft usage fo=
r flowspec application.</span></font></p>
<p><font size=3D"3" face=3D"Times New Roman"><span style=3D"COLOR: rgb(31,7=
3,125)"><font color=3D"#000000">If the BGP flowspec initiator cares about t=
he redirect target IP address and other QOS attributes such as BW, we can s=
pecify the additional attribute using BGP
 to notify the router, then the router perform local tunnel selection per t=
he attribute.</font></span></font></p>
<p><font color=3D"#000000" size=3D"3" face=3D"Times New Roman"><span style=
=3D"COLOR: rgb(31,73,125)">In summary, i think the router local decision sh=
ould not be completely unrestrictive, the BGP flowspec initiator should spe=
cify some constraint tunnel attribute to
 restrict local tunnel selection. The most relaxing mode is to only specify=
 redirect target IP address. More strictly attribute specification will&nbs=
p;strengthen the constraint for each router's local tunnel selection. This =
method will faciliate the validation
 and security concern.</span></font></p>
<p><font color=3D"#000000" size=3D"3" face=3D"Times New Roman"><span style=
=3D"COLOR: rgb(31,73,125)"></span></font><font color=3D"#000000" size=3D"3"=
 face=3D"Times New Roman"><span style=3D"COLOR: rgb(31,73,125)">Thanks,</sp=
an></font></p>
<p><font color=3D"#000000" size=3D"3" face=3D"Times New Roman"><span style=
=3D"COLOR: rgb(31,73,125)">weiguo</span></font></p>
<p></p>
<hr tabindex=3D"-1">
<p></p>
<div style=3D"FONT-FAMILY: Times New Roman; COLOR: #000000; FONT-SIZE: 16px=
">
<div style=3D"DIRECTION: ltr" id=3D"divRpF943520"><font size=3D"2" face=3D"=
Tahoma"><b>From:</b> Idr [idr-bounces@ietf.org] on behalf of VAN DE VELDE, =
Gunter (Gunter) [gunter.van_de_velde@alcatel-lucent.com]<br>
<b>Sent:</b> Tuesday, October 27, 2015 0:47<br>
<b>To:</b> Lizhenbin; Gunter Van De Velde; Robert Raszuk<br>
<b>Cc:</b> idr@ietf.org; spring@ietf.org; rtgwg@ietf.org<br>
<b>Subject:</b> Re: [Idr] Regarding &quot;Semantics Independent&quot; Flows=
pec//=B4=F0=B8=B4: =B4=F0=B8=B4: New draft - Flowspec Path Redirect<br>
</font><br>
</div>
<div></div>
<div>
<div>
<div>
<div>
<div>
<div>Let me just copy the answer I sent to another email I just sent to IDR=
:</div>
<div><br>
</div>
<div>&lt;&gt;start snip&lt;&gt;</div>
<div>Hi Robin,</div>
<div><br>
</div>
<div>Thanks for your note.</div>
<div><br>
</div>
<div>A tunnel is not always going over shortest path. Some tunnels are TE t=
unnels and are deliberately not going over a shortest path. This is somethi=
ng that&nbsp;<span style=3D"COLOR: rgb(31,73,125)">draft-rosen-idr-tunnel-e=
ncaps-00&nbsp;</span>will not help to signal
 because the tunnel-encap attribute indicates tunnel parameters used by the=
 tail-end.</div>
<div><br>
</div>
<div>If a redirect tunnel represents a particular redirect/steering service=
 (better delay, less packet loss, non-SRLG, more BW, etc=A1=AD) then it doe=
s become rather complex for BGP as signalling technology because a tunnel r=
elationship is a unique between 'a headend'
 and =A1=AEa tailed' device. It seems better to leave tunnel-setup to dedic=
ated tunnel-setup mechanisms like PCEP, SR, etc=A1=AD.</div>
<div><br>
</div>
<div>The draft redirect-to-PATH_ID is providing the means to signal a flow-=
based redirect/steering service, and have each recipient router identify us=
ing local recursion for the PATH_IDs the corresponding tunnels/redirect-inf=
o. This allows for tunnel setup
 complexity to be taken away from BGP, while at the same time BGP is doing =
what it is very good at doing: &quot;It signals a policy=A1=B1 in reliable =
fashion.</div>
</div>
<div><br>
</div>
<div>Kind Regards,</div>
<div>G/</div>
</div>
<div>
<div id=3D"MAC_OUTLOOK_SIGNATURE"></div>
</div>
</div>
</div>
<div><br>
</div>
<div>&lt;&gt;send snip&lt;&gt;</div>
<div><br>
</div>
<div>When looking at:&nbsp;<span style=3D"COLOR: rgb(31,73,125)">draft-litk=
owski-idr-flowspec-interfaceset t</span>hen find that this is a signalling =
method to identify on which interfaces the rule needs to be activated upon.=
 It is orthogonal from Redirect-to-path.</div>
<div><br>
</div>
<div>Segment Routing is a fine technology to built shortest Path and TE tun=
nels. Traffic steering is much more then redirecting to a Segment ID.&nbsp;=
</div>
<div><br>
</div>
<div>Looking at the above, I see little logic in your proposal Robin.</div>
<div><br>
</div>
<div>G/</div>
<div><br>
</div>
<span id=3D"OLK_SRC_BODY_SECTION">
<div style=3D"BORDER-BOTTOM: medium none; TEXT-ALIGN: left; BORDER-LEFT: me=
dium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; FONT=
-FAMILY: Calibri; COLOR: black; FONT-SIZE: 12pt; BORDER-TOP: #b5c4df 1pt so=
lid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<span style=3D"FONT-WEIGHT: bold">From: </span>Lizhenbin &lt;<a href=3D"mai=
lto:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;<br=
>
<span style=3D"FONT-WEIGHT: bold">Date: </span>Monday 26 October 2015 at 17=
:19<br>
<span style=3D"FONT-WEIGHT: bold">To: </span>Gunter Van de Velde &lt;<a hre=
f=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank">gunte=
r.van_de_velde@alcatel-lucent.com</a>&gt;, Gunter Van De Velde &lt;<a href=
=3D"mailto:guntervandeveldecc@icloud.com" target=3D"_blank">guntervandeveld=
ecc@icloud.com</a>&gt;,
 Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_blank">r=
obert@raszuk.net</a>&gt;<br>
<span style=3D"FONT-WEIGHT: bold">Cc: </span>&quot;<a href=3D"mailto:idr@ie=
tf.org" target=3D"_blank">idr@ietf.org</a>&quot; &lt;<a href=3D"mailto:idr@=
ietf.org" target=3D"_blank">idr@ietf.org</a>&gt;, &quot;<a href=3D"mailto:r=
tgwg@ietf.org" target=3D"_blank">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"ma=
ilto:rtgwg@ietf.org" target=3D"_blank">rtgwg@ietf.org</a>&gt;,
 &quot;<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org=
</a>&quot; &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@=
ietf.org</a>&gt;<br>
<span style=3D"FONT-WEIGHT: bold">Subject: </span>Regarding &quot;Semantics=
 Independent&quot; Flowspec//=B4=F0=B8=B4: =B4=F0=B8=B4: [Idr] New draft - =
Flowspec Path Redirect<br>
</div>
<div><br>
</div>
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<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">Hi Folks,</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">I think now the drafts=
 of BGP Flowspec for redirect to VRF/IP/Tunnel keeps the traditional way to=
 &nbsp;extend BGP Flowspec to redirect to an
 entity with explicit meaning which has been defined clearly in the existin=
g work.
</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">Now draft-vandevelde-i=
dr-flowspec-path-redirect is to introduce the Path ID which can represent m=
any forwarding entities. draft-litkowski-idr-flowspec-interfaceset
 is also to introduce the new =A1=B0group ID=A1=B1 concepts. </span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">There will be the prob=
lem how to define the path ID and group ID. In fact, my early comments prop=
osed the suggestion that we can reuse
 some work of segment routing and generalize the concept of Segment, then i=
t </span>
</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">can provide a base for=
 the abstracted view of different forwarding entities. In order to explain =
the usage, I proposed the draft draft-li-spring-segment-path-programming
 to try to explain the idea clearly. Since now </span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">segment ID can be the =
indicator of interface, node, tunnel, if we do not map segment ID to MPLS l=
abel or IPv6 address, it can be an identifier
 of all kinds of forwarding entities in the control plane which can be used=
 outside.
</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">Please refer to the Pl=
ease refer to =A1=B05.&nbsp; Usecases of Segment Path Programming=A1=B1 of =
draft-li-spring-segment-path-programming:
</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">-- 5.3.&nbsp; Steering=
 Traffic without Mapping Segment to Label: This is the usecase to use segme=
nt ID to implement =A1=B0redirect to IP/Link=A1=B1.</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">-- 5.4.&nbsp; Centrali=
zed Mapping Service to Tunnels: This is the usecase to use segment ID to im=
plement =A1=B0redirect to tunnel=A1=B1.</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">If BGP Flowspec can ca=
rry multiple segment IDs which represent different links of nodes, it can i=
mplement =A1=B0redirect to interface group=A1=B1.</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">So I think if we can c=
onsolidate work of draft-vandevelde-idr-flowspec-path-redirect/ draft-litko=
wski-idr-flowspec-interfaceset/ draft-li-spring-segment-path-programming
 to propose the draft of BGP Flowspec =A1=B0Redirect to Segment ID=A1=B1 </=
span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">to implement =A1=B0Sem=
antics Independent=A1=B1 Flowspec. The existing SRGB info advertisement and=
 SID allocation mechanism can be easily reused and
 enhanced to provide the base instead of defining the new idea and implemen=
tation of
</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">Path ID/Group ID.</spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">Best Regards,</span></=
p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">Zhenbin(Robin)</span><=
/p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
<div>
<div style=3D"BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING=
-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; BORDER-TOP: #b5c4df 1p=
t solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<p class=3D"MsoNormal"><b><span style=3D"FONT-SIZE: 10pt">=B7=A2=BC=FE=C8=
=CB<span lang=3D"EN-US">:</span></span></b><span style=3D"FONT-SIZE: 10pt" =
lang=3D"EN-US"> VAN DE VELDE, Gunter (Gunter) [<a href=3D"mailto:gunter.van=
_de_velde@alcatel-lucent.com" target=3D"_blank">mailto:gunter.van_de_velde@=
alcatel-lucent.com</a>]
<br>
</span><b><span style=3D"FONT-SIZE: 10pt">=B7=A2=CB=CD=CA=B1=BC=E4<span lan=
g=3D"EN-US">:</span></span></b><span style=3D"FONT-SIZE: 10pt" lang=3D"EN-U=
S"> 2015</span><span style=3D"FONT-SIZE: 10pt">=C4=EA<span lang=3D"EN-US">9=
</span>=D4=C2<span lang=3D"EN-US">28</span>=C8=D5<span lang=3D"EN-US"> 20:2=
9<br>
</span><b>=CA=D5=BC=FE=C8=CB<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> Lizhenbin; Gunter Van De Velde; Robert Raszuk<br>
</span><b>=B3=AD=CB=CD<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">
idr@ietf.org</a>; <a href=3D"mailto:pce@ietf.org" target=3D"_blank">pce@iet=
f.org</a><br>
</span><b>=D6=F7=CC=E2<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> Re: </span>=B4=F0=B8=B4<span lang=3D"EN-US">: [Idr] New draft - Flowspec =
Path Redirect</span></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US">Dear Zhenbin,</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US">For (1.) I=A1=AFll compose some=
 more text in a -01 version of the existing draft to document Flowspec PATH=
=A8CID. I assumed that it was clear with text
 already in the document, however, confusion seems to happen nevertheless.&=
nbsp;</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US">For (2.) the indirection by abs=
traction is the beauty of the idea and that is why its offering a more flex=
ible solution then other idea's around
 the topic out there. Its an abstract forwarding indirection ID provided by=
 BGP flow spec. Existing technology (PCE, SR, RSVP, manual-config, orchestr=
ation, etc=A1=AD) can be used to create/signal/maintain/etc the tunnel/LSP/=
redirect-next-hop per application/service.&nbsp;</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US">The proposal&nbsp;<a href=3D"ht=
tps://tools.ietf.org/html/draft-vandevelde-idr-flowspec-path-redirect-00" t=
arget=3D"_blank"><span style=3D"FONT-FAMILY: =CB=CE=CC=E5; FONT-SIZE: 12pt"=
>draft-vandevelde-idr-flowspec-path-redirect-00</span></a>&nbsp;does
 not provide a label or encap information but recipient uses localised redi=
rect information from existing and fine working technologies.</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US">Btw, your statement below that =
only one Path-ID can be signalled is wrong and is to some degree documented=
 in the existing draft.</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US">G/</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
</div>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
</div>
<div style=3D"BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING=
-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; BORDER-TOP: #b5c4df 1p=
t solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<p class=3D"MsoNormal"><b><span style=3D"FONT-FAMILY: Calibri,sans-serif; C=
OLOR: black" lang=3D"EN-US">From:
</span></b><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLOR: black" la=
ng=3D"EN-US">Lizhenbin<br>
<b>Date: </b>Monday 28 September 2015 13:16<br>
<b>To: </b>Gunter Van De Velde, Robert Raszuk<br>
<b>Cc: </b>&quot;<a href=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf=
.org</a>&quot;, Gunter Van de Velde, &quot;<a href=3D"mailto:pce@ietf.org" =
target=3D"_blank">pce@ietf.org</a>&quot;<br>
<b>Subject: </b></span><span style=3D"COLOR: black">=B4=F0=B8=B4</span><spa=
n style=3D"FONT-FAMILY: Calibri,sans-serif; COLOR: black" lang=3D"EN-US">: =
[Idr] New draft - Flowspec Path Redirect</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: black; FONT-SIZE: 10.5pt" lang=3D"EN-US"></span>&nbsp;</p>
</div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">Hi Gunter and Robert,<=
/span><span style=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">We are also doing simi=
lar work. Regarding the draft, the major concern is as follows:</span><span=
 style=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">1. What does the PATH_=
ID represent? Does it mean only tunnel/LSP or all possible forwarding path =
including tunnel/LSP, interface, VRF,
 nexthop, etc?</span><span style=3D"COLOR: black" lang=3D"EN-US"></span></p=
>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">2. How to allocate the=
 PATH_ID for the forwarding path?</span><span style=3D"COLOR: black" lang=
=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">We think the forwardin=
g behavior for Flowspec is always actual forwarding concepts including VRF,=
 nexthop, etc. So we proposed =A1=AEredirect
 to tunnel=A1=AF in similar way. But for PATH_ID you proposed is another wa=
y to generalize all possible forwarding path. It may be a new way to define=
 forwarding behavior for BGP Flowspec.</span><span style=3D"COLOR: black" l=
ang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">Regarding redirecting =
tunnel, we proposed several drafts for your reference:</span><span style=3D=
"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">-- draft-hao-idr-flows=
pec-nvo3-00</span><span style=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">-- draft-li-idr-mpls-p=
ath-programming-01</span><span style=3D"COLOR: black" lang=3D"EN-US"></span=
></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">-- draft-li-spring-tun=
nel-segment-00</span><span style=3D"COLOR: black" lang=3D"EN-US"></span></p=
>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">-- draft-chen-pce-pce-=
initiated-ip-tunnel-00</span><span style=3D"COLOR: black" lang=3D"EN-US"></=
span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">-- draft-li-pce-tunnel=
-segment-00</span><span style=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">As Weiguo mentioned, t=
he &quot;redirect to Tunnel&quot; for BGP Flowspec has been described brief=
ly in draft-hao-idr-flowspec-nvo3-00. We will split
 it into two drafts: 1. draft-hao-idr-flowspec-nvo3-01; 2. one independent =
draft to define the &quot;redirect to tunnel&quot; for BGP Flowspec.</span>=
<span style=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">For &quot;redirect to =
tunnel&quot; for BGP flowspec, in fact there can be two types of such behav=
iors:</span><span style=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">1. Specify the tunnel =
type:</span><span style=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">For this behavior, we =
will reuse the IP tunnel types defined in [draft-rosen-idr-tunnel-encaps-00=
] and the MPLS tunnel types defined in
 [draft-li-idr-mpls-path-programming-01].</span><span style=3D"COLOR: black=
" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">2. Specify the specifi=
c tunnel:</span><span style=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">For MPLS TE tunnel, th=
ere can be multiple MPLS TE tunnels for a specific destination. The tunnel =
type may be not enough. Then it is necessary
 to specify the specific MPLS TE tunnel through Tunnel Identifier. [RFC3209=
] defined the Tunnel Identifier for MPLS TE tunnel. PCE-initiated LSP adopt=
ed the Tunnel Identifier for which tunnel ID can be allocated by PCE. [draf=
t-li-idr-mpls-path-programming-01]
 will try to reuse the tunnel identifier and define it in the tunnel attrib=
ute which can be used for &quot;redirect to tunnel&quot; in [draft-hao-idr-=
flowspec-nvo3-00].
</span><span style=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">For IP tunnel, there i=
s always only one IP forwarding path for a specific destination. So When de=
fine &quot;redirect to specific IP tunnel&quot;
 the nexthop plus the tunnel type may be enough in the existing deployment.=
 As the development of IP tunnels, it may be popular to configure multiple =
IP tunnels for the specific destination. For examples we can define multipl=
e MPLS-in-UDP tunnels for which
 the destination is same and the port number can be different for the purpo=
se of ECMP. In order to cope with such development, [draft-chen-pce-pce-ini=
tiated-ip-tunnel-00] is proposed to introduce the tunnel identifier for IP =
tunnels for which tunnel ID can
 also be allocated by PCE as the MPLS TE tunnel. It may be also reused in t=
he tunnel attributes for the &quot;redirect to tunnel&quot;.</span><span st=
yle=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">We think if it is only=
 to think about &quot;redirect to tunnel&quot; for the BGP Flowspec there h=
as already been much existing work and it is better
 to reuse them. </span><span style=3D"COLOR: black" lang=3D"EN-US"></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">In fact the existing w=
ork to specify a specific tunnel the tunnel identifier is a combination wit=
h the ingress address/egress address and
 tunnel ID. But for the draft draft-vandevelde-idr-flowspec-path-redirect-0=
0, PATH_ID can be only one value to represent one tunnel. Recently we propo=
sed the drafts draft-li-spring-tunnel-segment-00/ draft-li-pce-tunnel-segme=
nt-00 in which the segment ID/label
 can be allocated for a tunnel. This is also to use one value to represent =
a tunnel. Now Segment Routing has defined many types segments which can map=
 to different forwarding path such as interface, node, tunnel, etc. From my=
 point of view, the work to define
 Segment-ID/Label and PATH-ID for the forwarding path can be consolidated a=
nd incorporated in the SRPING work. If we hope to define the generalized co=
ncept, maybe we can define =A1=B0Redirect to Segment=A1=B1 for the BGP Flow=
spec. In [draft-li-idr-mpls-path-programming-01],
 we define the label combination attributes to map the service to the MPLS =
forwarding path. Maybe it can be enhanced to SID stack attribute to map to =
general forwarding path which can be used for multiple BGP address family i=
ncluding BGP Flowspec.</span><span style=3D"COLOR: black" lang=3D"EN-US"></=
span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">This is about our thin=
king on the &quot;redirect to tunnel/path&quot; work. Hope to get your opin=
ion on it.
</span><span style=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
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R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">Best Regards,</span><s=
pan style=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US">Zhenbin(Robin)</span><=
span style=3D"COLOR: black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: Calibri,sans-serif; COLO=
R: rgb(31,73,125); FONT-SIZE: 10.5pt" lang=3D"EN-US"></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span>&nbsp;</p>
<div style=3D"BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING=
-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; BORDER-TOP: #b5c4df 1p=
t solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<p class=3D"MsoNormal"><b><span style=3D"COLOR: black; FONT-SIZE: 10pt">=B7=
=A2=BC=FE=C8=CB<span lang=3D"EN-US">:</span></span></b><span style=3D"COLOR=
: black; FONT-SIZE: 10pt" lang=3D"EN-US"> Idr [<a href=3D"mailto:idr-bounce=
s@ietf.org" target=3D"_blank">mailto:idr-bounces@ietf.org</a>]
</span><b><span style=3D"COLOR: black; FONT-SIZE: 10pt">=B4=FA=B1=ED </span=
></b><span style=3D"COLOR: black; FONT-SIZE: 10pt" lang=3D"EN-US">Gunter Va=
n De Velde<br>
</span><b><span style=3D"COLOR: black; FONT-SIZE: 10pt">=B7=A2=CB=CD=CA=B1=
=BC=E4<span lang=3D"EN-US">:</span></span></b><span style=3D"COLOR: black; =
FONT-SIZE: 10pt" lang=3D"EN-US"> 2015</span><span style=3D"COLOR: black; FO=
NT-SIZE: 10pt">=C4=EA<span lang=3D"EN-US">9</span>=D4=C2<span lang=3D"EN-US=
">23</span>=C8=D5<span lang=3D"EN-US">
 20:44<br>
</span><b>=CA=D5=BC=FE=C8=CB<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> Robert Raszuk<br>
</span><b>=B3=AD=CB=CD<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">
idr@ietf.org</a>; VAN DE VELDE, Gunter (Gunter)<br>
</span><b>=D6=F7=CC=E2<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> Re: [Idr] New draft - Flowspec Path Redirect</span></span><span style=3D"=
COLOR: black" lang=3D"EN-US"></span></p>
</div>
<p class=3D"MsoNormal"><span style=3D"COLOR: black" lang=3D"EN-US"></span>&=
nbsp;</p>
<p><span style=3D"COLOR: black" lang=3D"EN-US">Interresting question... I s=
ee few options to address this. (And fwiw, i left this currently intentiona=
lly out the text to see if some ideas pop-up to confirm or deny the ideas t=
he authors had on this topic)</span></p>
<p><span style=3D"COLOR: black" lang=3D"EN-US">The one which currently to m=
e resonates most is to treat the path-id similar as a traditional bgp next-=
hop address... Meaning, that if the receiving router does't have a &quot;va=
lid&quot; entry in the locallised path-id table
 it treats flowspec rule as withdraw.</span></p>
<p><span style=3D"COLOR: black" lang=3D"EN-US">Decision on what is consider=
ed &quot;valid&quot; is at first glance a local router decision.</span></p>
<p><span style=3D"COLOR: black" lang=3D"EN-US">If you have another proposal=
 i would be happy to learn and see if it resonates.</span></p>
<p><span style=3D"COLOR: black" lang=3D"EN-US">Ciao,<br>
G/</span></p>
<div id=3D"cm_signature">
<p class=3D"MsoNormal"><span style=3D"COLOR: black" lang=3D"EN-US"><br>
<br>
Sent using <a href=3D"https://cloudmagic.com/k/d/mailapp?ct=3Dpa&amp;cv=3D7=
.3.5&amp;pv=3D5.1.1&amp;source=3Demail_footer_2" target=3D"_blank">
CloudMagic Email</a> </span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"COLOR: #787878" lang=3D"EN-US">On Wed=
, Sep 23, 2015 at 10:56 AM, Robert Raszuk &lt;<a href=3D"mailto:robert@rasz=
uk.net" target=3D"_blank">robert@raszuk.net</a>&gt; wrote:</span><span styl=
e=3D"COLOR: black" lang=3D"EN-US"></span></p>
</div>
<p class=3D"MsoNormal"><span style=3D"COLOR: black" lang=3D"EN-US"></span>&=
nbsp;</p>
<div id=3D"oldcontent">
<blockquote style=3D"MARGIN-TOP: 5pt; MARGIN-BOTTOM: 5pt">
<p style=3D"BACKGROUND: white"><span style=3D"COLOR: black" lang=3D"EN-US">=
Hey Gunter,</span></p>
<p style=3D"BACKGROUND: white"><span style=3D"COLOR: black" lang=3D"EN-US">=
Let me ask you a question (which in fact also applies to redirect to<br>
next hop draft).</span></p>
<p style=3D"BACKGROUND: white"><span style=3D"COLOR: black" lang=3D"EN-US">=
What is the expected system action when the redirect path is down<br>
(assuming you have tools to detect it) or next hop you are redirecting<br>
it to is unreachable ?</span></p>
<p style=3D"BACKGROUND: white"><span style=3D"COLOR: black" lang=3D"EN-US">=
I read your draft but other then definition of the encoding I was not<br>
able to find answers for this.</span></p>
<p style=3D"BACKGROUND: white"><span style=3D"COLOR: black" lang=3D"EN-US">=
The original RFC5575 recommended redirect to local VRF which is just<br>
as loopback normally up and within that VRF your orchestration can<br>
redirect to next hop or path with whatever encapsulation you like.</span></=
p>
<p style=3D"BACKGROUND: white"><span style=3D"COLOR: black" lang=3D"EN-US">=
Here you (and redirect to next hop folks) are making a shortcut<br>
however in both works I have not seen a proper discussion nor<br>
definition of set of procedures which need to be executed upon your<br>
redirect entity failure.</span></p>
<p style=3D"BACKGROUND: white"><span style=3D"COLOR: black" lang=3D"EN-US">=
I suggest both documents are updated with that before we proceed<br>
further with both proposals.</span></p>
<p style=3D"MARGIN-BOTTOM: 12pt; BACKGROUND: white"><span style=3D"COLOR: b=
lack" lang=3D"EN-US">Cheers,<br>
R.<br>
<br>
<br>
<br>
<br>
</span></p>
<p style=3D"BACKGROUND: white"><span style=3D"COLOR: black" lang=3D"EN-US">=
On Wed, Sep 23, 2015 at 10:18 AM, VAN DE VELDE, Gunter (Gunter)<br>
&lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_bl=
ank">gunter.van_de_velde@alcatel-lucent.com</a>&gt; wrote:<br>
&gt; Hi Folks,<br>
&gt;<br>
&gt; We have created a new draft to allow the capability to have Flowspec s=
ignal<br>
&gt; a redirect to tunnel/LSP.<br>
&gt;<br>
&gt; <a href=3D"https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-p=
ath-redirect-00" target=3D"_blank">
https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-path-redirect-00<=
/a><br>
&gt;<br>
&gt; The base principle is to use the indirection capability of BGP for pat=
h<br>
&gt; redirection.<br>
&gt;<br>
&gt; This proposal defines a new flowspec community to signal a redirect<br=
>
&gt; </span><span style=3D"COLOR: black">=A1=AE<span lang=3D"EN-US">path-id=
</span>=A1=AF<span lang=3D"EN-US">. This path-id is is either a 128bit or 3=
2bit value<br>
&gt; Assumed is that recipient router supporting path-id redirect have a<br=
>
&gt; localised path-id indexed table containing LSP/tunnel encapsulation<br=
>
&gt; information.<br>
&gt; Existing technology can be used to construct/create this table (LDP, S=
R,<br>
&gt; RSVP, manual-config, etc</span>=A1=AD<span lang=3D"EN-US">) on a recip=
ient router. The LSP/tunnel encap table<br>
&gt; is indexed using 32 or 128 bit values.<br>
&gt;<br>
&gt; Flowspec path-id community is used to activate a redirect LSP/tunnel a=
nd<br>
&gt; provide by indirection the LSP/tunnel information for the flowspec<br>
&gt; identified traffic towards the LSP/tunnel.<br>
&gt;<br>
&gt; Benefits:<br>
&gt;<br>
&gt; no need for signalling labels or extra encap in BGP<br>
&gt; Each path-id indexed LSP/tunnel table is a localised construct<br>
&gt; existing technology is used to construct the path-id indexed localised=
 table<br>
&gt; Compatibility with technologies already using 32 or 128 bit identifier=
s for<br>
&gt; paths and sessions<br>
&gt; Easy for flow spec to signal as it introduces no need to signal labels=
 etc</span>=A1=AD<span lang=3D"EN-US"><br>
&gt; no conflicts with existing label exchange technologies<br>
&gt;<br>
&gt; Feedback welcome.<br>
&gt;<br>
&gt; G/<br>
&gt;<br>
&gt; _______________________________________________<br>
&gt; Idr mailing list<br>
&gt; <a href=3D"mailto:Idr@ietf.org" target=3D"_blank">Idr@ietf.org</a><br>
&gt; <a href=3D"https://www.ietf.org/mailman/listinfo/idr" target=3D"_blank=
">https://www.ietf.org/mailman/listinfo/idr</a><br>
&gt;</span></span></p>
<p style=3D"BACKGROUND: white"><span style=3D"COLOR: black" lang=3D"EN-US">=
_______________________________________________<br>
Idr mailing list<br>
<a href=3D"mailto:Idr@ietf.org" target=3D"_blank">Idr@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" target=3D"_blank">htt=
ps://www.ietf.org/mailman/listinfo/idr</a></span></p>
</blockquote>
</div>
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From: Robert Raszuk <robert@raszuk.net>
To: "VAN DE VELDE, Gunter (Gunter)" <gunter.van_de_velde@alcatel-lucent.com>
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Subject: Re: [Idr] =?utf-8?q?Regarding_=22Semantics_Independent=22_Flowspec//?= =?utf-8?b?562U5aSNOiDnrZTlpI06IE5ldyBkcmFmdCAtIEZsb3dzcGVjIFBhdGggUmVk?= =?utf-8?q?irect?=
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--089e013d14c284f6b7052312d411
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Gunter,

No one in BGP land will question that decoupling and indirection is a good
thing.

But why do you need new PATH_ID rather then just using community as a
marker ? Be it regular, extended or wide ?

Cheers,
R.
On Oct 27, 2015 10:01 AM, "VAN DE VELDE, Gunter (Gunter)" <
gunter.van_de_velde@alcatel-lucent.com> wrote:

> When configuring a PBR on a router using CLI you identify the
> =E2=80=98interesting=E2=80=99 traffic and the =E2=80=98actions=E2=80=99  =
upon the interesting traffic.
>
> PBR does not do anything for tunnel-setup or signaling=E2=80=A6 I do not =
think
> that Flowspec should be involved at all with set-up or
> tunnel initiation as there are much better solutions to achieve that goal
> in existence already. Flowspec can be used by a controller
> to signal policies, and a next to traffic conditioning instructions a
> redirect policy seems as a reasonable fit.
>
> Long story short: BGP Flowspec allows a controller to signal in a
> decoupled fashion both flow conditioning (already
> exists) and flow steering (PATH_ID) meta-data. The receiving router
> consumes this meta-data and takes based upon that
> meta-data localised decisions. Decoupling is a very powerful tool.
>
> G/
>
> From: Haoweiguo <haoweiguo@huawei.com>
> Date: Tuesday 27 October 2015 at 03:24
> To: Gunter Van de Velde <gunter.van_de_velde@alcatel-lucent.com>,
> Lizhenbin <lizhenbin@huawei.com>, Gunter Van De Velde <
> guntervandeveldecc@icloud.com>, Robert Raszuk <robert@raszuk.net>
> Cc: "idr@ietf.org" <idr@ietf.org>, "spring@ietf.org" <spring@ietf.org>, "
> rtgwg@ietf.org" <rtgwg@ietf.org>
> Subject: RE: [Idr] Regarding "Semantics Independent" Flowspec//=E7=AD=94=
=E5=A4=8D: =E7=AD=94=E5=A4=8D:
> New draft - Flowspec Path Redirect
>
> Hi Gunter,
>
> Understood your design method is to just specify PATH_ID in flowspec
> message, and let the routers do local recursive action to select a set of
> specific tunnel(s), the tunnel and PATH_ID association should be configur=
ed
> beforehand at each router. The BGP flowspec initiator doesn't need to
> specify detail tunnel attributes, the flowspec message is tunnel semantic
> agnostic. The router local decision is totally unrestrictive, the
> validation and security seems to be hard to be controlled.
>
> In traditional BGP flowspec designing, BGP flowspec initiator specifies
> detail match fields and actions, the routers only enforce the actions
> without any flexibility for local decision. If using the traditional
> method, you worry about the complexity to specify detail tunnel attribute=
s.
>
> If the BGP flowspec initiator only cares about the redirect target IP
> address and tunnel type like NVO3, the tunnel attribute only need to
> include head-end information. The attribute can be described by draft-ros=
en-idr-tunnel-encaps-00,
> we only need to extend the draft usage for flowspec application.
>
> If the BGP flowspec initiator cares about the redirect target IP address
> and other QOS attributes such as BW, we can specify the additional
> attribute using BGP to notify the router, then the router perform local
> tunnel selection per the attribute.
>
> In summary, i think the router local decision should not be completely
> unrestrictive, the BGP flowspec initiator should specify some constraint
> tunnel attribute to restrict local tunnel selection. The most relaxing mo=
de
> is to only specify redirect target IP address. More strictly attribute
> specification will strengthen the constraint for each router's local tunn=
el
> selection. This method will faciliate the validation and security concern=
.
>
> Thanks,
>
> weiguo
>
> ------------------------------
>
> *From:* Idr [idr-bounces@ietf.org] on behalf of VAN DE VELDE, Gunter
> (Gunter) [gunter.van_de_velde@alcatel-lucent.com]
> *Sent:* Tuesday, October 27, 2015 0:47
> *To:* Lizhenbin; Gunter Van De Velde; Robert Raszuk
> *Cc:* idr@ietf.org; spring@ietf.org; rtgwg@ietf.org
> *Subject:* Re: [Idr] Regarding "Semantics Independent" Flowspec//=E7=AD=
=94=E5=A4=8D: =E7=AD=94=E5=A4=8D:
> New draft - Flowspec Path Redirect
>
> Let me just copy the answer I sent to another email I just sent to IDR:
>
> <>start snip<>
> Hi Robin,
>
> Thanks for your note.
>
> A tunnel is not always going over shortest path. Some tunnels are TE
> tunnels and are deliberately not going over a shortest path. This is
> something that draft-rosen-idr-tunnel-encaps-00 will not help to signal
> because the tunnel-encap attribute indicates tunnel parameters used by th=
e
> tail-end.
>
> If a redirect tunnel represents a particular redirect/steering service
> (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then it=
 does
> become rather complex for BGP as signalling technology because a tunnel
> relationship is a unique between 'a headend' and =E2=80=98a tailed' devic=
e. It
> seems better to leave tunnel-setup to dedicated tunnel-setup mechanisms
> like PCEP, SR, etc=E2=80=A6.
>
> The draft redirect-to-PATH_ID is providing the means to signal a
> flow-based redirect/steering service, and have each recipient router
> identify using local recursion for the PATH_IDs the corresponding
> tunnels/redirect-info. This allows for tunnel setup complexity to be take=
n
> away from BGP, while at the same time BGP is doing what it is very good a=
t
> doing: "It signals a policy=E2=80=9D in reliable fashion.
>
> Kind Regards,
> G/
>
> <>send snip<>
>
> When looking at: draft-litkowski-idr-flowspec-interfaceset then find that
> this is a signalling method to identify on which interfaces the rule need=
s
> to be activated upon. It is orthogonal from Redirect-to-path.
>
> Segment Routing is a fine technology to built shortest Path and TE
> tunnels. Traffic steering is much more then redirecting to a Segment ID.
>
> Looking at the above, I see little logic in your proposal Robin.
>
> G/
>
> From: Lizhenbin <lizhenbin@huawei.com>
> Date: Monday 26 October 2015 at 17:19
> To: Gunter Van de Velde <gunter.van_de_velde@alcatel-lucent.com>, Gunter
> Van De Velde <guntervandeveldecc@icloud.com>, Robert Raszuk <
> robert@raszuk.net>
> Cc: "idr@ietf.org" <idr@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>, "
> spring@ietf.org" <spring@ietf.org>
> Subject: Regarding "Semantics Independent" Flowspec//=E7=AD=94=E5=A4=8D: =
=E7=AD=94=E5=A4=8D: [Idr] New
> draft - Flowspec Path Redirect
>
> Hi Folks,
>
> I think now the drafts of BGP Flowspec for redirect to VRF/IP/Tunnel keep=
s
> the traditional way to  extend BGP Flowspec to redirect to an entity with
> explicit meaning which has been defined clearly in the existing work.
>
> Now draft-vandevelde-idr-flowspec-path-redirect is to introduce the Path
> ID which can represent many forwarding entities.
> draft-litkowski-idr-flowspec-interfaceset is also to introduce the new
> =E2=80=9Cgroup ID=E2=80=9D concepts.
>
> There will be the problem how to define the path ID and group ID. In fact=
,
> my early comments proposed the suggestion that we can reuse some work of
> segment routing and generalize the concept of Segment, then it
>
> can provide a base for the abstracted view of different forwarding
> entities. In order to explain the usage, I proposed the draft
> draft-li-spring-segment-path-programming to try to explain the idea
> clearly. Since now
>
> segment ID can be the indicator of interface, node, tunnel, if we do not
> map segment ID to MPLS label or IPv6 address, it can be an identifier of
> all kinds of forwarding entities in the control plane which can be used
> outside.
>
> Please refer to the Please refer to =E2=80=9C5.  Usecases of Segment Path
> Programming=E2=80=9D of draft-li-spring-segment-path-programming:
>
> -- 5.3.  Steering Traffic without Mapping Segment to Label: This is the
> usecase to use segment ID to implement =E2=80=9Credirect to IP/Link=E2=80=
=9D.
>
> -- 5.4.  Centralized Mapping Service to Tunnels: This is the usecase to
> use segment ID to implement =E2=80=9Credirect to tunnel=E2=80=9D.
>
> If BGP Flowspec can carry multiple segment IDs which represent different
> links of nodes, it can implement =E2=80=9Credirect to interface group=E2=
=80=9D.
>
> So I think if we can consolidate work of
> draft-vandevelde-idr-flowspec-path-redirect/
> draft-litkowski-idr-flowspec-interfaceset/
> draft-li-spring-segment-path-programming to propose the draft of BGP
> Flowspec =E2=80=9CRedirect to Segment ID=E2=80=9D
>
> to implement =E2=80=9CSemantics Independent=E2=80=9D Flowspec. The existi=
ng SRGB info
> advertisement and SID allocation mechanism can be easily reused and
> enhanced to provide the base instead of defining the new idea and
> implementation of
>
> Path ID/Group ID.
>
>
>
>
>
>
>
> Best Regards,
>
> Zhenbin(Robin)
>
>
>
>
>
> *=E5=8F=91=E4=BB=B6=E4=BA=BA:* VAN DE VELDE, Gunter (Gunter) [
> mailto:gunter.van_de_velde@alcatel-lucent.com
> <gunter.van_de_velde@alcatel-lucent.com>]
> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:* 2015=E5=B9=B49=E6=9C=8828=E6=97=
=A5 20:29
> *=E6=94=B6=E4=BB=B6=E4=BA=BA:* Lizhenbin; Gunter Van De Velde; Robert Ras=
zuk
> *=E6=8A=84=E9=80=81:* idr@ietf.org; pce@ietf.org
> *=E4=B8=BB=E9=A2=98:* Re: =E7=AD=94=E5=A4=8D: [Idr] New draft - Flowspec =
Path Redirect
>
>
>
> Dear Zhenbin,
>
>
>
> For (1.) I=E2=80=99ll compose some more text in a -01 version of the exis=
ting
> draft to document Flowspec PATH=E2=80=93ID. I assumed that it was clear w=
ith text
> already in the document, however, confusion seems to happen nevertheless.
>
>
>
> For (2.) the indirection by abstraction is the beauty of the idea and tha=
t
> is why its offering a more flexible solution then other idea's around the
> topic out there. Its an abstract forwarding indirection ID provided by BG=
P
> flow spec. Existing technology (PCE, SR, RSVP, manual-config,
> orchestration, etc=E2=80=A6) can be used to create/signal/maintain/etc th=
e
> tunnel/LSP/redirect-next-hop per application/service.
>
>
>
> The proposal draft-vandevelde-idr-flowspec-path-redirect-00
> <https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-path-redirect-=
00> does
> not provide a label or encap information but recipient uses localised
> redirect information from existing and fine working technologies.
>
>
>
> Btw, your statement below that only one Path-ID can be signalled is wrong
> and is to some degree documented in the existing draft.
>
>
>
> G/
>
>
>
>
>
>
>
> *From: *Lizhenbin
> *Date: *Monday 28 September 2015 13:16
> *To: *Gunter Van De Velde, Robert Raszuk
> *Cc: *"idr@ietf.org", Gunter Van de Velde, "pce@ietf.org"
> *Subject: *=E7=AD=94=E5=A4=8D: [Idr] New draft - Flowspec Path Redirect
>
>
>
> Hi Gunter and Robert,
>
> We are also doing similar work. Regarding the draft, the major concern is
> as follows:
>
> 1. What does the PATH_ID represent? Does it mean only tunnel/LSP or all
> possible forwarding path including tunnel/LSP, interface, VRF, nexthop, e=
tc?
>
> 2. How to allocate the PATH_ID for the forwarding path?
>
> We think the forwarding behavior for Flowspec is always actual forwarding
> concepts including VRF, nexthop, etc. So we proposed =E2=80=98redirect to=
 tunnel=E2=80=99
> in similar way. But for PATH_ID you proposed is another way to generalize
> all possible forwarding path. It may be a new way to define forwarding
> behavior for BGP Flowspec.
>
>
>
> Regarding redirecting tunnel, we proposed several drafts for your
> reference:
>
> -- draft-hao-idr-flowspec-nvo3-00
>
> -- draft-li-idr-mpls-path-programming-01
>
> -- draft-li-spring-tunnel-segment-00
>
> -- draft-chen-pce-pce-initiated-ip-tunnel-00
>
> -- draft-li-pce-tunnel-segment-00
>
>
>
> As Weiguo mentioned, the "redirect to Tunnel" for BGP Flowspec has been
> described briefly in draft-hao-idr-flowspec-nvo3-00. We will split it int=
o
> two drafts: 1. draft-hao-idr-flowspec-nvo3-01; 2. one independent draft t=
o
> define the "redirect to tunnel" for BGP Flowspec.
>
>
>
> For "redirect to tunnel" for BGP flowspec, in fact there can be two types
> of such behaviors:
>
> 1. Specify the tunnel type:
>
> For this behavior, we will reuse the IP tunnel types defined in
> [draft-rosen-idr-tunnel-encaps-00] and the MPLS tunnel types defined in
> [draft-li-idr-mpls-path-programming-01].
>
> 2. Specify the specific tunnel:
>
> For MPLS TE tunnel, there can be multiple MPLS TE tunnels for a specific
> destination. The tunnel type may be not enough. Then it is necessary to
> specify the specific MPLS TE tunnel through Tunnel Identifier. [RFC3209]
> defined the Tunnel Identifier for MPLS TE tunnel. PCE-initiated LSP adopt=
ed
> the Tunnel Identifier for which tunnel ID can be allocated by PCE.
> [draft-li-idr-mpls-path-programming-01] will try to reuse the tunnel
> identifier and define it in the tunnel attribute which can be used for
> "redirect to tunnel" in [draft-hao-idr-flowspec-nvo3-00].
>
> For IP tunnel, there is always only one IP forwarding path for a specific
> destination. So When define "redirect to specific IP tunnel" the nexthop
> plus the tunnel type may be enough in the existing deployment. As the
> development of IP tunnels, it may be popular to configure multiple IP
> tunnels for the specific destination. For examples we can define multiple
> MPLS-in-UDP tunnels for which the destination is same and the port number
> can be different for the purpose of ECMP. In order to cope with such
> development, [draft-chen-pce-pce-initiated-ip-tunnel-00] is proposed to
> introduce the tunnel identifier for IP tunnels for which tunnel ID can al=
so
> be allocated by PCE as the MPLS TE tunnel. It may be also reused in the
> tunnel attributes for the "redirect to tunnel".
>
>
>
> We think if it is only to think about "redirect to tunnel" for the BGP
> Flowspec there has already been much existing work and it is better to
> reuse them.
>
>
>
> In fact the existing work to specify a specific tunnel the tunnel
> identifier is a combination with the ingress address/egress address and
> tunnel ID. But for the draft
> draft-vandevelde-idr-flowspec-path-redirect-00, PATH_ID can be only one
> value to represent one tunnel. Recently we proposed the drafts
> draft-li-spring-tunnel-segment-00/ draft-li-pce-tunnel-segment-00 in whic=
h
> the segment ID/label can be allocated for a tunnel. This is also to use o=
ne
> value to represent a tunnel. Now Segment Routing has defined many types
> segments which can map to different forwarding path such as interface,
> node, tunnel, etc. From my point of view, the work to define
> Segment-ID/Label and PATH-ID for the forwarding path can be consolidated
> and incorporated in the SRPING work. If we hope to define the generalized
> concept, maybe we can define =E2=80=9CRedirect to Segment=E2=80=9D for th=
e BGP Flowspec. In
> [draft-li-idr-mpls-path-programming-01], we define the label combination
> attributes to map the service to the MPLS forwarding path. Maybe it can b=
e
> enhanced to SID stack attribute to map to general forwarding path which c=
an
> be used for multiple BGP address family including BGP Flowspec.
>
>
>
> This is about our thinking on the "redirect to tunnel/path" work. Hope to
> get your opinion on it.
>
>
>
>
>
> Best Regards,
>
> Zhenbin(Robin)
>
>
>
>
>
>
>
>
>
>
>
>
>
> *=E5=8F=91=E4=BB=B6=E4=BA=BA:* Idr [mailto:idr-bounces@ietf.org <idr-boun=
ces@ietf.org>] *=E4=BB=A3=E8=A1=A8 *Gunter
> Van De Velde
> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:* 2015=E5=B9=B49=E6=9C=8823=E6=97=
=A5 20:44
> *=E6=94=B6=E4=BB=B6=E4=BA=BA:* Robert Raszuk
> *=E6=8A=84=E9=80=81:* idr@ietf.org; VAN DE VELDE, Gunter (Gunter)
> *=E4=B8=BB=E9=A2=98:* Re: [Idr] New draft - Flowspec Path Redirect
>
>
>
> Interresting question... I see few options to address this. (And fwiw, i
> left this currently intentionally out the text to see if some ideas pop-u=
p
> to confirm or deny the ideas the authors had on this topic)
>
> The one which currently to me resonates most is to treat the path-id
> similar as a traditional bgp next-hop address... Meaning, that if the
> receiving router does't have a "valid" entry in the locallised path-id
> table it treats flowspec rule as withdraw.
>
> Decision on what is considered "valid" is at first glance a local router
> decision.
>
> If you have another proposal i would be happy to learn and see if it
> resonates.
>
> Ciao,
> G/
>
>
>
> Sent using CloudMagic Email
> <https://cloudmagic.com/k/d/mailapp?ct=3Dpa&cv=3D7.3.5&pv=3D5.1.1&source=
=3Demail_footer_2>
>
> On Wed, Sep 23, 2015 at 10:56 AM, Robert Raszuk <robert@raszuk.net> wrote=
:
>
>
>
> Hey Gunter,
>
> Let me ask you a question (which in fact also applies to redirect to
> next hop draft).
>
> What is the expected system action when the redirect path is down
> (assuming you have tools to detect it) or next hop you are redirecting
> it to is unreachable ?
>
> I read your draft but other then definition of the encoding I was not
> able to find answers for this.
>
> The original RFC5575 recommended redirect to local VRF which is just
> as loopback normally up and within that VRF your orchestration can
> redirect to next hop or path with whatever encapsulation you like.
>
> Here you (and redirect to next hop folks) are making a shortcut
> however in both works I have not seen a proper discussion nor
> definition of set of procedures which need to be executed upon your
> redirect entity failure.
>
> I suggest both documents are updated with that before we proceed
> further with both proposals.
>
> Cheers,
> R.
>
>
>
>
> On Wed, Sep 23, 2015 at 10:18 AM, VAN DE VELDE, Gunter (Gunter)
> <gunter.van_de_velde@alcatel-lucent.com> wrote:
> > Hi Folks,
> >
> > We have created a new draft to allow the capability to have Flowspec
> signal
> > a redirect to tunnel/LSP.
> >
> >
> https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-path-redirect-0=
0
> >
> > The base principle is to use the indirection capability of BGP for path
> > redirection.
> >
> > This proposal defines a new flowspec community to signal a redirect
> > =E2=80=98path-id=E2=80=99. This path-id is is either a 128bit or 32bit =
value
> > Assumed is that recipient router supporting path-id redirect have a
> > localised path-id indexed table containing LSP/tunnel encapsulation
> > information.
> > Existing technology can be used to construct/create this table (LDP, SR=
,
> > RSVP, manual-config, etc=E2=80=A6) on a recipient router. The LSP/tunne=
l encap
> table
> > is indexed using 32 or 128 bit values.
> >
> > Flowspec path-id community is used to activate a redirect LSP/tunnel an=
d
> > provide by indirection the LSP/tunnel information for the flowspec
> > identified traffic towards the LSP/tunnel.
> >
> > Benefits:
> >
> > no need for signalling labels or extra encap in BGP
> > Each path-id indexed LSP/tunnel table is a localised construct
> > existing technology is used to construct the path-id indexed localised
> table
> > Compatibility with technologies already using 32 or 128 bit identifiers
> for
> > paths and sessions
> > Easy for flow spec to signal as it introduces no need to signal labels
> etc=E2=80=A6
> > no conflicts with existing label exchange technologies
> >
> > Feedback welcome.
> >
> > G/
> >
> > _______________________________________________
> > Idr mailing list
> > Idr@ietf.org
> > https://www.ietf.org/mailman/listinfo/idr
> >
>
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr
>
>

--089e013d14c284f6b7052312d411
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<p dir=3D"ltr">Gunter,</p>
<p dir=3D"ltr">No one in BGP land will question that decoupling and indirec=
tion is a good thing.</p>
<p dir=3D"ltr">But why do you need new PATH_ID rather then just using commu=
nity as a marker ? Be it regular, extended or wide ?</p>
<p dir=3D"ltr">Cheers,<br>
R.</p>
<div class=3D"gmail_quote">On Oct 27, 2015 10:01 AM, &quot;VAN DE VELDE, Gu=
nter (Gunter)&quot; &lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucen=
t.com">gunter.van_de_velde@alcatel-lucent.com</a>&gt; wrote:<br type=3D"att=
ribution"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bord=
er-left:1px #ccc solid;padding-left:1ex">



<div style=3D"word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-fam=
ily:Calibri,sans-serif">
<div>
<div>
<div>When configuring a PBR on a router using CLI you identify the =E2=80=
=98interesting=E2=80=99 traffic and the =E2=80=98actions=E2=80=99 =C2=A0upo=
n the interesting traffic.</div>
<div>
<div></div>
</div>
</div>
</div>
<div><br>
</div>
<div>PBR does not do anything for tunnel-setup or signaling=E2=80=A6 I do n=
ot think that Flowspec should be involved at all with set-up or=C2=A0</div>
<div>tunnel initiation as there are much better solutions to achieve that g=
oal in existence already. Flowspec can be used by a controller=C2=A0</div>
<div>to signal policies, and a next to traffic conditioning instructions a =
redirect policy seems as a reasonable fit.=C2=A0</div>
<div><br>
</div>
<div>Long story short: BGP Flowspec allows a controller to signal in a deco=
upled fashion both flow conditioning (already=C2=A0</div>
<div>exists) and flow steering (PATH_ID) meta-data. The receiving router co=
nsumes this meta-data and takes based upon that=C2=A0</div>
<div>meta-data localised decisions. Decoupling is a very powerful tool.</di=
v>
<div><br>
</div>
<div>G/</div>
<div><br>
</div>
<span>
<div style=3D"font-family:Calibri;font-size:12pt;text-align:left;color:blac=
k;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADD=
ING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:me=
dium none;PADDING-TOP:3pt">
<span style=3D"font-weight:bold">From: </span>Haoweiguo &lt;<a href=3D"mail=
to:haoweiguo@huawei.com" target=3D"_blank">haoweiguo@huawei.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Tuesday 27 October 2015 at 03=
:24<br>
<span style=3D"font-weight:bold">To: </span>Gunter Van de Velde &lt;<a href=
=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank">gunter=
.van_de_velde@alcatel-lucent.com</a>&gt;, Lizhenbin &lt;<a href=3D"mailto:l=
izhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;, Gunter=
 Van De Velde
 &lt;<a href=3D"mailto:guntervandeveldecc@icloud.com" target=3D"_blank">gun=
tervandeveldecc@icloud.com</a>&gt;, Robert Raszuk &lt;<a href=3D"mailto:rob=
ert@raszuk.net" target=3D"_blank">robert@raszuk.net</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:idr@iet=
f.org" target=3D"_blank">idr@ietf.org</a>&quot; &lt;<a href=3D"mailto:idr@i=
etf.org" target=3D"_blank">idr@ietf.org</a>&gt;, &quot;<a href=3D"mailto:sp=
ring@ietf.org" target=3D"_blank">spring@ietf.org</a>&quot; &lt;<a href=3D"m=
ailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a>&gt;, &quot;<a =
href=3D"mailto:rtgwg@ietf.org" target=3D"_blank">rtgwg@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:rtgwg@ietf.org" target=3D"_blank">rtgwg@ietf.org</a>=
&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>RE: [Idr] Regarding &quot;=
Semantics Independent&quot; Flowspec//=E7=AD=94=E5=A4=8D: =E7=AD=94=E5=A4=
=8D: New draft - Flowspec Path Redirect<br>
</div>
<div><br>
</div>
<div dir=3D"ltr">
<div style=3D"FONT-FAMILY:Calibri,sans-serif;WORD-WRAP:break-word;COLOR:rgb=
(0,0,0);FONT-SIZE:14px">
<div style=3D"direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt=
">
<p><font size=3D"3" face=3D"Times New Roman">Hi Gunter,</font></p>
<p><font size=3D"3" face=3D"Times New Roman">Understood your design method =
is to just specify PATH_ID in flowspec message, and let the routers do loca=
l recursive action to select a set of specific tunnel(s), the tunnel and PA=
TH_ID association should be configured
 beforehand at each router. The BGP flowspec initiator doesn&#39;t need to =
specify detail tunnel attributes, the flowspec message is tunnel semantic a=
gnostic. The router local decision is totally unrestrictive, the validation=
 and security seems to be hard to be
 controlled.</font></p>
<p><font size=3D"3" face=3D"Times New Roman">In traditional BGP flowspec de=
signing, BGP flowspec initiator specifies detail match fields and actions, =
the routers only enforce the actions without any flexibility for local deci=
sion. If using the traditional method,
 you worry about the complexity to specify detail tunnel attributes. </font=
></p>
<p><font size=3D"3" face=3D"Times New Roman">If the BGP flowspec initiator =
only cares about the redirect target IP address and tunnel type like NVO3, =
the tunnel attribute only need to include head-end information.
</font><font size=3D"3" face=3D"Times New Roman">The attribute can be descr=
ibed by <span style=3D"COLOR:rgb(31,73,125)">
draft-rosen-idr-tunnel-encaps-00, we only need to extend the draft usage fo=
r flowspec application.</span></font></p>
<p><font size=3D"3" face=3D"Times New Roman"><span style=3D"COLOR:rgb(31,73=
,125)"><font color=3D"#000000">If the BGP flowspec initiator cares about th=
e redirect target IP address and other QOS attributes such as BW, we can sp=
ecify the additional attribute using BGP
 to notify the router, then the router perform local tunnel selection per t=
he attribute.</font></span></font></p>
<p><font color=3D"#000000" size=3D"3" face=3D"Times New Roman"><span style=
=3D"COLOR:rgb(31,73,125)">In summary, i think the router local decision sho=
uld not be completely unrestrictive, the BGP flowspec initiator should spec=
ify some constraint tunnel attribute to
 restrict local tunnel selection. The most relaxing mode is to only specify=
 redirect target IP address. More strictly attribute specification will=C2=
=A0strengthen the constraint for each router&#39;s local tunnel selection. =
This method will faciliate the validation
 and security concern.</span></font></p>
<p><font color=3D"#000000" size=3D"3" face=3D"Times New Roman"><span style=
=3D"COLOR:rgb(31,73,125)"></span></font><font color=3D"#000000" size=3D"3" =
face=3D"Times New Roman"><span style=3D"COLOR:rgb(31,73,125)">Thanks,</span=
></font></p>
<p><font color=3D"#000000" size=3D"3" face=3D"Times New Roman"><span style=
=3D"COLOR:rgb(31,73,125)">weiguo</span></font></p>
<p></p>
<hr>
<p></p>
<div style=3D"FONT-FAMILY:Times New Roman;COLOR:#000000;FONT-SIZE:16px">
<div style=3D"DIRECTION:ltr"><font size=3D"2" face=3D"Tahoma"><b>From:</b> =
Idr [<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank">idr-bounces@=
ietf.org</a>] on behalf of VAN DE VELDE, Gunter (Gunter) [<a href=3D"mailto=
:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank">gunter.van_de_ve=
lde@alcatel-lucent.com</a>]<br>
<b>Sent:</b> Tuesday, October 27, 2015 0:47<br>
<b>To:</b> Lizhenbin; Gunter Van De Velde; Robert Raszuk<br>
<b>Cc:</b> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</=
a>; <a href=3D"mailto:spring@ietf.org" target=3D"_blank">
spring@ietf.org</a>; <a href=3D"mailto:rtgwg@ietf.org" target=3D"_blank">rt=
gwg@ietf.org</a><br>
<b>Subject:</b> Re: [Idr] Regarding &quot;Semantics Independent&quot; Flows=
pec//=E7=AD=94=E5=A4=8D: =E7=AD=94=E5=A4=8D: New draft - Flowspec Path Redi=
rect<br>
</font><br>
</div>
<div></div>
<div>
<div>
<div>
<div>
<div>
<div>Let me just copy the answer I sent to another email I just sent to IDR=
:</div>
<div><br>
</div>
<div>&lt;&gt;start snip&lt;&gt;</div>
<div>Hi Robin,</div>
<div><br>
</div>
<div>Thanks for your note.</div>
<div><br>
</div>
<div>A tunnel is not always going over shortest path. Some tunnels are TE t=
unnels and are deliberately not going over a shortest path. This is somethi=
ng that=C2=A0<span style=3D"COLOR:rgb(31,73,125)">draft-rosen-idr-tunnel-en=
caps-00=C2=A0</span>will not help to signal
 because the tunnel-encap attribute indicates tunnel parameters used by the=
 tail-end.</div>
<div><br>
</div>
<div>If a redirect tunnel represents a particular redirect/steering service=
 (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then it =
does become rather complex for BGP as signalling technology because a tunne=
l relationship is a unique between &#39;a headend&#39;
 and =E2=80=98a tailed&#39; device. It seems better to leave tunnel-setup t=
o dedicated tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.</div>
<div><br>
</div>
<div>The draft redirect-to-PATH_ID is providing the means to signal a flow-=
based redirect/steering service, and have each recipient router identify us=
ing local recursion for the PATH_IDs the corresponding tunnels/redirect-inf=
o. This allows for tunnel setup
 complexity to be taken away from BGP, while at the same time BGP is doing =
what it is very good at doing: &quot;It signals a policy=E2=80=9D in reliab=
le fashion.</div>
</div>
<div><br>
</div>
<div>Kind Regards,</div>
<div>G/</div>
</div>
<div>
<div></div>
</div>
</div>
</div>
<div><br>
</div>
<div>&lt;&gt;send snip&lt;&gt;</div>
<div><br>
</div>
<div>When looking at:=C2=A0<span style=3D"COLOR:rgb(31,73,125)">draft-litko=
wski-idr-flowspec-interfaceset t</span>hen find that this is a signalling m=
ethod to identify on which interfaces the rule needs to be activated upon. =
It is orthogonal from Redirect-to-path.</div>
<div><br>
</div>
<div>Segment Routing is a fine technology to built shortest Path and TE tun=
nels. Traffic steering is much more then redirecting to a Segment ID.=C2=A0=
</div>
<div><br>
</div>
<div>Looking at the above, I see little logic in your proposal Robin.</div>
<div><br>
</div>
<div>G/</div>
<div><br>
</div>
<span>
<div style=3D"BORDER-BOTTOM:medium none;TEXT-ALIGN:left;BORDER-LEFT:medium =
none;PADDING-BOTTOM:0in;PADDING-LEFT:0in;PADDING-RIGHT:0in;FONT-FAMILY:Cali=
bri;COLOR:black;FONT-SIZE:12pt;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:me=
dium none;PADDING-TOP:3pt">
<span style=3D"FONT-WEIGHT:bold">From: </span>Lizhenbin &lt;<a href=3D"mail=
to:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;<br>
<span style=3D"FONT-WEIGHT:bold">Date: </span>Monday 26 October 2015 at 17:=
19<br>
<span style=3D"FONT-WEIGHT:bold">To: </span>Gunter Van de Velde &lt;<a href=
=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank">gunter=
.van_de_velde@alcatel-lucent.com</a>&gt;, Gunter Van De Velde &lt;<a href=
=3D"mailto:guntervandeveldecc@icloud.com" target=3D"_blank">guntervandeveld=
ecc@icloud.com</a>&gt;,
 Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_blank">r=
obert@raszuk.net</a>&gt;<br>
<span style=3D"FONT-WEIGHT:bold">Cc: </span>&quot;<a href=3D"mailto:idr@iet=
f.org" target=3D"_blank">idr@ietf.org</a>&quot; &lt;<a href=3D"mailto:idr@i=
etf.org" target=3D"_blank">idr@ietf.org</a>&gt;, &quot;<a href=3D"mailto:rt=
gwg@ietf.org" target=3D"_blank">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mai=
lto:rtgwg@ietf.org" target=3D"_blank">rtgwg@ietf.org</a>&gt;,
 &quot;<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org=
</a>&quot; &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@=
ietf.org</a>&gt;<br>
<span style=3D"FONT-WEIGHT:bold">Subject: </span>Regarding &quot;Semantics =
Independent&quot; Flowspec//=E7=AD=94=E5=A4=8D: =E7=AD=94=E5=A4=8D: [Idr] N=
ew draft - Flowspec Path Redirect<br>
</div>
<div><br>
</div>
<div>
<div lang=3D"ZH-CN">
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Hi Folks,</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">I think now the drafts of B=
GP Flowspec for redirect to VRF/IP/Tunnel keeps the traditional way to =C2=
=A0extend BGP Flowspec to redirect to an
 entity with explicit meaning which has been defined clearly in the existin=
g work.
</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Now draft-vandevelde-idr-fl=
owspec-path-redirect is to introduce the Path ID which can represent many f=
orwarding entities. draft-litkowski-idr-flowspec-interfaceset
 is also to introduce the new =E2=80=9Cgroup ID=E2=80=9D concepts. </span><=
/p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">There will be the problem h=
ow to define the path ID and group ID. In fact, my early comments proposed =
the suggestion that we can reuse
 some work of segment routing and generalize the concept of Segment, then i=
t </span>
</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">can provide a base for the =
abstracted view of different forwarding entities. In order to explain the u=
sage, I proposed the draft draft-li-spring-segment-path-programming
 to try to explain the idea clearly. Since now </span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">segment ID can be the indic=
ator of interface, node, tunnel, if we do not map segment ID to MPLS label =
or IPv6 address, it can be an identifier
 of all kinds of forwarding entities in the control plane which can be used=
 outside.
</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Please refer to the Please =
refer to =E2=80=9C5.=C2=A0 Usecases of Segment Path Programming=E2=80=9D of=
 draft-li-spring-segment-path-programming:
</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- 5.3.=C2=A0 Steering Traf=
fic without Mapping Segment to Label: This is the usecase to use segment ID=
 to implement =E2=80=9Credirect to IP/Link=E2=80=9D.</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- 5.4.=C2=A0 Centralized M=
apping Service to Tunnels: This is the usecase to use segment ID to impleme=
nt =E2=80=9Credirect to tunnel=E2=80=9D.</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">If BGP Flowspec can carry m=
ultiple segment IDs which represent different links of nodes, it can implem=
ent =E2=80=9Credirect to interface group=E2=80=9D.</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">So I think if we can consol=
idate work of draft-vandevelde-idr-flowspec-path-redirect/ draft-litkowski-=
idr-flowspec-interfaceset/ draft-li-spring-segment-path-programming
 to propose the draft of BGP Flowspec =E2=80=9CRedirect to Segment ID=E2=80=
=9D </span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">to implement =E2=80=9CSeman=
tics Independent=E2=80=9D Flowspec. The existing SRGB info advertisement an=
d SID allocation mechanism can be easily reused and
 enhanced to provide the base instead of defining the new idea and implemen=
tation of
</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Path ID/Group ID.</span></p=
>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Best Regards,</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Zhenbin(Robin)</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
<div>
<div style=3D"BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOT=
TOM:0cm;PADDING-LEFT:0cm;PADDING-RIGHT:0cm;BORDER-TOP:#b5c4df 1pt solid;BOR=
DER-RIGHT:medium none;PADDING-TOP:3pt">
<p class=3D"MsoNormal"><b><span style=3D"FONT-SIZE:10pt">=E5=8F=91=E4=BB=B6=
=E4=BA=BA<span lang=3D"EN-US">:</span></span></b><span style=3D"FONT-SIZE:1=
0pt" lang=3D"EN-US"> VAN DE VELDE, Gunter (Gunter) [<a href=3D"mailto:gunte=
r.van_de_velde@alcatel-lucent.com" target=3D"_blank">mailto:gunter.van_de_v=
elde@alcatel-lucent.com</a>]
<br>
</span><b><span style=3D"FONT-SIZE:10pt">=E5=8F=91=E9=80=81=E6=97=B6=E9=97=
=B4<span lang=3D"EN-US">:</span></span></b><span style=3D"FONT-SIZE:10pt" l=
ang=3D"EN-US"> 2015</span><span style=3D"FONT-SIZE:10pt">=E5=B9=B4<span lan=
g=3D"EN-US">9</span>=E6=9C=88<span lang=3D"EN-US">28</span>=E6=97=A5<span l=
ang=3D"EN-US"> 20:29<br>
</span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></b><span=
 lang=3D"EN-US"> Lizhenbin; Gunter Van De Velde; Robert Raszuk<br>
</span><b>=E6=8A=84=E9=80=81<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">
idr@ietf.org</a>; <a href=3D"mailto:pce@ietf.org" target=3D"_blank">pce@iet=
f.org</a><br>
</span><b>=E4=B8=BB=E9=A2=98<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> Re: </span>=E7=AD=94=E5=A4=8D<span lang=3D"EN-US">: [Idr] New draft=
 - Flowspec Path Redirect</span></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US">Dear Zhenbin,</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US">For (1.) I=E2=80=99ll compose some m=
ore text in a -01 version of the existing draft to document Flowspec PATH=
=E2=80=93ID. I assumed that it was clear with text
 already in the document, however, confusion seems to happen nevertheless.=
=C2=A0</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US">For (2.) the indirection by abstract=
ion is the beauty of the idea and that is why its offering a more flexible =
solution then other idea&#39;s around
 the topic out there. Its an abstract forwarding indirection ID provided by=
 BGP flow spec. Existing technology (PCE, SR, RSVP, manual-config, orchestr=
ation, etc=E2=80=A6) can be used to create/signal/maintain/etc the tunnel/L=
SP/redirect-next-hop per application/service.=C2=A0</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US">The proposal=C2=A0<a href=3D"https:/=
/tools.ietf.org/html/draft-vandevelde-idr-flowspec-path-redirect-00" target=
=3D"_blank"><span style=3D"FONT-FAMILY:=E5=AE=8B=E4=BD=93;FONT-SIZE:12pt">d=
raft-vandevelde-idr-flowspec-path-redirect-00</span></a>=C2=A0does
 not provide a label or encap information but recipient uses localised redi=
rect information from existing and fine working technologies.</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US">Btw, your statement below that only =
one Path-ID can be signalled is wrong and is to some degree documented in t=
he existing draft.</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US">G/</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div style=3D"BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOT=
TOM:0cm;PADDING-LEFT:0cm;PADDING-RIGHT:0cm;BORDER-TOP:#b5c4df 1pt solid;BOR=
DER-RIGHT:medium none;PADDING-TOP:3pt">
<p class=3D"MsoNormal"><b><span style=3D"FONT-FAMILY:Calibri,sans-serif;COL=
OR:black" lang=3D"EN-US">From:
</span></b><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:black" lang=
=3D"EN-US">Lizhenbin<br>
<b>Date: </b>Monday 28 September 2015 13:16<br>
<b>To: </b>Gunter Van De Velde, Robert Raszuk<br>
<b>Cc: </b>&quot;<a href=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf=
.org</a>&quot;, Gunter Van de Velde, &quot;<a href=3D"mailto:pce@ietf.org" =
target=3D"_blank">pce@ietf.org</a>&quot;<br>
<b>Subject: </b></span><span style=3D"COLOR:black">=E7=AD=94=E5=A4=8D</span=
><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:black" lang=3D"EN-US">=
: [Idr] New draft - Flowspec Path Redirect</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Hi Gunter and Robert,</span=
><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">We are also doing similar w=
ork. Regarding the draft, the major concern is as follows:</span><span styl=
e=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">1. What does the PATH_ID re=
present? Does it mean only tunnel/LSP or all possible forwarding path inclu=
ding tunnel/LSP, interface, VRF,
 nexthop, etc?</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">2. How to allocate the PATH=
_ID for the forwarding path?</span><span style=3D"COLOR:black" lang=3D"EN-U=
S"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">We think the forwarding beh=
avior for Flowspec is always actual forwarding concepts including VRF, next=
hop, etc. So we proposed =E2=80=98redirect
 to tunnel=E2=80=99 in similar way. But for PATH_ID you proposed is another=
 way to generalize all possible forwarding path. It may be a new way to def=
ine forwarding behavior for BGP Flowspec.</span><span style=3D"COLOR:black"=
 lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Regarding redirecting tunne=
l, we proposed several drafts for your reference:</span><span style=3D"COLO=
R:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- draft-hao-idr-flowspec-n=
vo3-00</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- draft-li-idr-mpls-path-p=
rogramming-01</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- draft-li-spring-tunnel-s=
egment-00</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- draft-chen-pce-pce-initi=
ated-ip-tunnel-00</span><span style=3D"COLOR:black" lang=3D"EN-US"></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- draft-li-pce-tunnel-segm=
ent-00</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">As Weiguo mentioned, the &q=
uot;redirect to Tunnel&quot; for BGP Flowspec has been described briefly in=
 draft-hao-idr-flowspec-nvo3-00. We will split
 it into two drafts: 1. draft-hao-idr-flowspec-nvo3-01; 2. one independent =
draft to define the &quot;redirect to tunnel&quot; for BGP Flowspec.</span>=
<span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">For &quot;redirect to tunne=
l&quot; for BGP flowspec, in fact there can be two types of such behaviors:=
</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">1. Specify the tunnel type:=
</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">For this behavior, we will =
reuse the IP tunnel types defined in [draft-rosen-idr-tunnel-encaps-00] and=
 the MPLS tunnel types defined in
 [draft-li-idr-mpls-path-programming-01].</span><span style=3D"COLOR:black"=
 lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">2. Specify the specific tun=
nel:</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">For MPLS TE tunnel, there c=
an be multiple MPLS TE tunnels for a specific destination. The tunnel type =
may be not enough. Then it is necessary
 to specify the specific MPLS TE tunnel through Tunnel Identifier. [RFC3209=
] defined the Tunnel Identifier for MPLS TE tunnel. PCE-initiated LSP adopt=
ed the Tunnel Identifier for which tunnel ID can be allocated by PCE. [draf=
t-li-idr-mpls-path-programming-01]
 will try to reuse the tunnel identifier and define it in the tunnel attrib=
ute which can be used for &quot;redirect to tunnel&quot; in [draft-hao-idr-=
flowspec-nvo3-00].
</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">For IP tunnel, there is alw=
ays only one IP forwarding path for a specific destination. So When define =
&quot;redirect to specific IP tunnel&quot;
 the nexthop plus the tunnel type may be enough in the existing deployment.=
 As the development of IP tunnels, it may be popular to configure multiple =
IP tunnels for the specific destination. For examples we can define multipl=
e MPLS-in-UDP tunnels for which
 the destination is same and the port number can be different for the purpo=
se of ECMP. In order to cope with such development, [draft-chen-pce-pce-ini=
tiated-ip-tunnel-00] is proposed to introduce the tunnel identifier for IP =
tunnels for which tunnel ID can
 also be allocated by PCE as the MPLS TE tunnel. It may be also reused in t=
he tunnel attributes for the &quot;redirect to tunnel&quot;.</span><span st=
yle=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">We think if it is only to t=
hink about &quot;redirect to tunnel&quot; for the BGP Flowspec there has al=
ready been much existing work and it is better
 to reuse them. </span><span style=3D"COLOR:black" lang=3D"EN-US"></span></=
p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">In fact the existing work t=
o specify a specific tunnel the tunnel identifier is a combination with the=
 ingress address/egress address and
 tunnel ID. But for the draft draft-vandevelde-idr-flowspec-path-redirect-0=
0, PATH_ID can be only one value to represent one tunnel. Recently we propo=
sed the drafts draft-li-spring-tunnel-segment-00/ draft-li-pce-tunnel-segme=
nt-00 in which the segment ID/label
 can be allocated for a tunnel. This is also to use one value to represent =
a tunnel. Now Segment Routing has defined many types segments which can map=
 to different forwarding path such as interface, node, tunnel, etc. From my=
 point of view, the work to define
 Segment-ID/Label and PATH-ID for the forwarding path can be consolidated a=
nd incorporated in the SRPING work. If we hope to define the generalized co=
ncept, maybe we can define =E2=80=9CRedirect to Segment=E2=80=9D for the BG=
P Flowspec. In [draft-li-idr-mpls-path-programming-01],
 we define the label combination attributes to map the service to the MPLS =
forwarding path. Maybe it can be enhanced to SID stack attribute to map to =
general forwarding path which can be used for multiple BGP address family i=
ncluding BGP Flowspec.</span><span style=3D"COLOR:black" lang=3D"EN-US"></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">This is about our thinking =
on the &quot;redirect to tunnel/path&quot; work. Hope to get your opinion o=
n it.
</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Best Regards,</span><span s=
tyle=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Zhenbin(Robin)</span><span =
style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<div style=3D"BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOT=
TOM:0cm;PADDING-LEFT:0cm;PADDING-RIGHT:0cm;BORDER-TOP:#b5c4df 1pt solid;BOR=
DER-RIGHT:medium none;PADDING-TOP:3pt">
<p class=3D"MsoNormal"><b><span style=3D"COLOR:black;FONT-SIZE:10pt">=E5=8F=
=91=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></span></b><span style=3D=
"COLOR:black;FONT-SIZE:10pt" lang=3D"EN-US"> Idr [<a href=3D"mailto:idr-bou=
nces@ietf.org" target=3D"_blank">mailto:idr-bounces@ietf.org</a>]
</span><b><span style=3D"COLOR:black;FONT-SIZE:10pt">=E4=BB=A3=E8=A1=A8 </s=
pan></b><span style=3D"COLOR:black;FONT-SIZE:10pt" lang=3D"EN-US">Gunter Va=
n De Velde<br>
</span><b><span style=3D"COLOR:black;FONT-SIZE:10pt">=E5=8F=91=E9=80=81=E6=
=97=B6=E9=97=B4<span lang=3D"EN-US">:</span></span></b><span style=3D"COLOR=
:black;FONT-SIZE:10pt" lang=3D"EN-US"> 2015</span><span style=3D"COLOR:blac=
k;FONT-SIZE:10pt">=E5=B9=B4<span lang=3D"EN-US">9</span>=E6=9C=88<span lang=
=3D"EN-US">23</span>=E6=97=A5<span lang=3D"EN-US">
 20:44<br>
</span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></b><span=
 lang=3D"EN-US"> Robert Raszuk<br>
</span><b>=E6=8A=84=E9=80=81<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">
idr@ietf.org</a>; VAN DE VELDE, Gunter (Gunter)<br>
</span><b>=E4=B8=BB=E9=A2=98<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> Re: [Idr] New draft - Flowspec Path Redirect</span></span><span sty=
le=3D"COLOR:black" lang=3D"EN-US"></span></p>
</div>
<p class=3D"MsoNormal"><span style=3D"COLOR:black" lang=3D"EN-US"></span>=
=C2=A0</p>
<p><span style=3D"COLOR:black" lang=3D"EN-US">Interresting question... I se=
e few options to address this. (And fwiw, i left this currently intentional=
ly out the text to see if some ideas pop-up to confirm or deny the ideas th=
e authors had on this topic)</span></p>
<p><span style=3D"COLOR:black" lang=3D"EN-US">The one which currently to me=
 resonates most is to treat the path-id similar as a traditional bgp next-h=
op address... Meaning, that if the receiving router does&#39;t have a &quot=
;valid&quot; entry in the locallised path-id table
 it treats flowspec rule as withdraw.</span></p>
<p><span style=3D"COLOR:black" lang=3D"EN-US">Decision on what is considere=
d &quot;valid&quot; is at first glance a local router decision.</span></p>
<p><span style=3D"COLOR:black" lang=3D"EN-US">If you have another proposal =
i would be happy to learn and see if it resonates.</span></p>
<p><span style=3D"COLOR:black" lang=3D"EN-US">Ciao,<br>
G/</span></p>
<div>
<p class=3D"MsoNormal"><span style=3D"COLOR:black" lang=3D"EN-US"><br>
<br>
Sent using <a href=3D"https://cloudmagic.com/k/d/mailapp?ct=3Dpa&amp;cv=3D7=
.3.5&amp;pv=3D5.1.1&amp;source=3Demail_footer_2" target=3D"_blank">
CloudMagic Email</a> </span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"COLOR:#787878" lang=3D"EN-US">On Wed,=
 Sep 23, 2015 at 10:56 AM, Robert Raszuk &lt;<a href=3D"mailto:robert@raszu=
k.net" target=3D"_blank">robert@raszuk.net</a>&gt; wrote:</span><span style=
=3D"COLOR:black" lang=3D"EN-US"></span></p>
</div>
<p class=3D"MsoNormal"><span style=3D"COLOR:black" lang=3D"EN-US"></span>=
=C2=A0</p>
<div>
<blockquote style=3D"MARGIN-TOP:5pt;MARGIN-BOTTOM:5pt">
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">He=
y Gunter,</span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">Le=
t me ask you a question (which in fact also applies to redirect to<br>
next hop draft).</span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">Wh=
at is the expected system action when the redirect path is down<br>
(assuming you have tools to detect it) or next hop you are redirecting<br>
it to is unreachable ?</span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">I =
read your draft but other then definition of the encoding I was not<br>
able to find answers for this.</span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">Th=
e original RFC5575 recommended redirect to local VRF which is just<br>
as loopback normally up and within that VRF your orchestration can<br>
redirect to next hop or path with whatever encapsulation you like.</span></=
p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">He=
re you (and redirect to next hop folks) are making a shortcut<br>
however in both works I have not seen a proper discussion nor<br>
definition of set of procedures which need to be executed upon your<br>
redirect entity failure.</span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">I =
suggest both documents are updated with that before we proceed<br>
further with both proposals.</span></p>
<p style=3D"MARGIN-BOTTOM:12pt;BACKGROUND:white"><span style=3D"COLOR:black=
" lang=3D"EN-US">Cheers,<br>
R.<br>
<br>
<br>
<br>
<br>
</span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">On=
 Wed, Sep 23, 2015 at 10:18 AM, VAN DE VELDE, Gunter (Gunter)<br>
&lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_bl=
ank">gunter.van_de_velde@alcatel-lucent.com</a>&gt; wrote:<br>
&gt; Hi Folks,<br>
&gt;<br>
&gt; We have created a new draft to allow the capability to have Flowspec s=
ignal<br>
&gt; a redirect to tunnel/LSP.<br>
&gt;<br>
&gt; <a href=3D"https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-p=
ath-redirect-00" target=3D"_blank">
https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-path-redirect-00<=
/a><br>
&gt;<br>
&gt; The base principle is to use the indirection capability of BGP for pat=
h<br>
&gt; redirection.<br>
&gt;<br>
&gt; This proposal defines a new flowspec community to signal a redirect<br=
>
&gt; </span><span style=3D"COLOR:black">=E2=80=98<span lang=3D"EN-US">path-=
id</span>=E2=80=99<span lang=3D"EN-US">. This path-id is is either a 128bit=
 or 32bit value<br>
&gt; Assumed is that recipient router supporting path-id redirect have a<br=
>
&gt; localised path-id indexed table containing LSP/tunnel encapsulation<br=
>
&gt; information.<br>
&gt; Existing technology can be used to construct/create this table (LDP, S=
R,<br>
&gt; RSVP, manual-config, etc</span>=E2=80=A6<span lang=3D"EN-US">) on a re=
cipient router. The LSP/tunnel encap table<br>
&gt; is indexed using 32 or 128 bit values.<br>
&gt;<br>
&gt; Flowspec path-id community is used to activate a redirect LSP/tunnel a=
nd<br>
&gt; provide by indirection the LSP/tunnel information for the flowspec<br>
&gt; identified traffic towards the LSP/tunnel.<br>
&gt;<br>
&gt; Benefits:<br>
&gt;<br>
&gt; no need for signalling labels or extra encap in BGP<br>
&gt; Each path-id indexed LSP/tunnel table is a localised construct<br>
&gt; existing technology is used to construct the path-id indexed localised=
 table<br>
&gt; Compatibility with technologies already using 32 or 128 bit identifier=
s for<br>
&gt; paths and sessions<br>
&gt; Easy for flow spec to signal as it introduces no need to signal labels=
 etc</span>=E2=80=A6<span lang=3D"EN-US"><br>
&gt; no conflicts with existing label exchange technologies<br>
&gt;<br>
&gt; Feedback welcome.<br>
&gt;<br>
&gt; G/<br>
&gt;<br>
&gt; _______________________________________________<br>
&gt; Idr mailing list<br>
&gt; <a href=3D"mailto:Idr@ietf.org" target=3D"_blank">Idr@ietf.org</a><br>
&gt; <a href=3D"https://www.ietf.org/mailman/listinfo/idr" target=3D"_blank=
">https://www.ietf.org/mailman/listinfo/idr</a><br>
&gt;</span></span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">__=
_____________________________________________<br>
Idr mailing list<br>
<a href=3D"mailto:Idr@ietf.org" target=3D"_blank">Idr@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" target=3D"_blank">htt=
ps://www.ietf.org/mailman/listinfo/idr</a></span></p>
</blockquote>
</div>
</div>
</div>
</div>
</div>
</div>
</span></div>
</div>
</div>
</div>
</div>
</span>
</div>

</blockquote></div>

--089e013d14c284f6b7052312d411--


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From: "VAN DE VELDE, Gunter (Gunter)" <gunter.van_de_velde@alcatel-lucent.com>
To: Robert Raszuk <robert@raszuk.net>
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To: "VAN DE VELDE, Gunter (Gunter)" <gunter.van_de_velde@alcatel-lucent.com>
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Subject: Re: [Idr] =?utf-8?q?Regarding_=22Semantics_Independent=22_Flowspec//?= =?utf-8?b?562U5aSNOiDnrZTlpI06IE5ldyBkcmFmdCAtIEZsb3dzcGVjIFBhdGggUmVk?= =?utf-8?q?irect?=
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My question was specifically why *new* one is needed to just work as a
marker ?

R.
On Oct 27, 2015 10:44 AM, "VAN DE VELDE, Gunter (Gunter)" <
gunter.van_de_velde@alcatel-lucent.com> wrote:

> It =E2=80=98is' a community=E2=80=A6 just one used to indicate a
> redirection/traffic-steering service=E2=80=A6
>
> G/
>
> From: <rraszuk@gmail.com> on behalf of Robert Raszuk <robert@raszuk.net>
> Date: Tuesday 27 October 2015 at 10:37
> To: Gunter Van de Velde <gunter.van_de_velde@alcatel-lucent.com>
> Cc: "rtgwg@ietf.org" <rtgwg@ietf.org>, "spring@ietf.org" <spring@ietf.org=
>,
> "idr@ietf.org" <idr@ietf.org>, Gunter Van De Velde <
> guntervandeveldecc@icloud.com>, Lizhenbin <lizhenbin@huawei.com>,
> Haoweiguo <haoweiguo@huawei.com>
> Subject: Re: [Idr] Regarding "Semantics Independent" Flowspec//=E7=AD=94=
=E5=A4=8D: =E7=AD=94=E5=A4=8D:
> New draft - Flowspec Path Redirect
>
> Gunter,
>
> No one in BGP land will question that decoupling and indirection is a goo=
d
> thing.
>
> But why do you need new PATH_ID rather then just using community as a
> marker ? Be it regular, extended or wide ?
>
> Cheers,
> R.
> On Oct 27, 2015 10:01 AM, "VAN DE VELDE, Gunter (Gunter)" <
> gunter.van_de_velde@alcatel-lucent.com> wrote:
>
>> When configuring a PBR on a router using CLI you identify the
>> =E2=80=98interesting=E2=80=99 traffic and the =E2=80=98actions=E2=80=99 =
 upon the interesting traffic.
>>
>> PBR does not do anything for tunnel-setup or signaling=E2=80=A6 I do not=
 think
>> that Flowspec should be involved at all with set-up or
>> tunnel initiation as there are much better solutions to achieve that goa=
l
>> in existence already. Flowspec can be used by a controller
>> to signal policies, and a next to traffic conditioning instructions a
>> redirect policy seems as a reasonable fit.
>>
>> Long story short: BGP Flowspec allows a controller to signal in a
>> decoupled fashion both flow conditioning (already
>> exists) and flow steering (PATH_ID) meta-data. The receiving router
>> consumes this meta-data and takes based upon that
>> meta-data localised decisions. Decoupling is a very powerful tool.
>>
>> G/
>>
>> From: Haoweiguo <haoweiguo@huawei.com>
>> Date: Tuesday 27 October 2015 at 03:24
>> To: Gunter Van de Velde <gunter.van_de_velde@alcatel-lucent.com>,
>> Lizhenbin <lizhenbin@huawei.com>, Gunter Van De Velde <
>> guntervandeveldecc@icloud.com>, Robert Raszuk <robert@raszuk.net>
>> Cc: "idr@ietf.org" <idr@ietf.org>, "spring@ietf.org" <spring@ietf.org>, =
"
>> rtgwg@ietf.org" <rtgwg@ietf.org>
>> Subject: RE: [Idr] Regarding "Semantics Independent" Flowspec//=E7=AD=94=
=E5=A4=8D: =E7=AD=94=E5=A4=8D:
>> New draft - Flowspec Path Redirect
>>
>> Hi Gunter,
>>
>> Understood your design method is to just specify PATH_ID in flowspec
>> message, and let the routers do local recursive action to select a set o=
f
>> specific tunnel(s), the tunnel and PATH_ID association should be configu=
red
>> beforehand at each router. The BGP flowspec initiator doesn't need to
>> specify detail tunnel attributes, the flowspec message is tunnel semanti=
c
>> agnostic. The router local decision is totally unrestrictive, the
>> validation and security seems to be hard to be controlled.
>>
>> In traditional BGP flowspec designing, BGP flowspec initiator specifies
>> detail match fields and actions, the routers only enforce the actions
>> without any flexibility for local decision. If using the traditional
>> method, you worry about the complexity to specify detail tunnel attribut=
es.
>>
>> If the BGP flowspec initiator only cares about the redirect target IP
>> address and tunnel type like NVO3, the tunnel attribute only need to
>> include head-end information. The attribute can be described by draft-ro=
sen-idr-tunnel-encaps-00,
>> we only need to extend the draft usage for flowspec application.
>>
>> If the BGP flowspec initiator cares about the redirect target IP address
>> and other QOS attributes such as BW, we can specify the additional
>> attribute using BGP to notify the router, then the router perform local
>> tunnel selection per the attribute.
>>
>> In summary, i think the router local decision should not be completely
>> unrestrictive, the BGP flowspec initiator should specify some constraint
>> tunnel attribute to restrict local tunnel selection. The most relaxing m=
ode
>> is to only specify redirect target IP address. More strictly attribute
>> specification will strengthen the constraint for each router's local tun=
nel
>> selection. This method will faciliate the validation and security concer=
n.
>>
>> Thanks,
>>
>> weiguo
>>
>> ------------------------------
>>
>> *From:* Idr [idr-bounces@ietf.org] on behalf of VAN DE VELDE, Gunter
>> (Gunter) [gunter.van_de_velde@alcatel-lucent.com]
>> *Sent:* Tuesday, October 27, 2015 0:47
>> *To:* Lizhenbin; Gunter Van De Velde; Robert Raszuk
>> *Cc:* idr@ietf.org; spring@ietf.org; rtgwg@ietf.org
>> *Subject:* Re: [Idr] Regarding "Semantics Independent" Flowspec//=E7=AD=
=94=E5=A4=8D: =E7=AD=94=E5=A4=8D:
>> New draft - Flowspec Path Redirect
>>
>> Let me just copy the answer I sent to another email I just sent to IDR:
>>
>> <>start snip<>
>> Hi Robin,
>>
>> Thanks for your note.
>>
>> A tunnel is not always going over shortest path. Some tunnels are TE
>> tunnels and are deliberately not going over a shortest path. This is
>> something that draft-rosen-idr-tunnel-encaps-00 will not help to signal
>> because the tunnel-encap attribute indicates tunnel parameters used by t=
he
>> tail-end.
>>
>> If a redirect tunnel represents a particular redirect/steering service
>> (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then i=
t does
>> become rather complex for BGP as signalling technology because a tunnel
>> relationship is a unique between 'a headend' and =E2=80=98a tailed' devi=
ce. It
>> seems better to leave tunnel-setup to dedicated tunnel-setup mechanisms
>> like PCEP, SR, etc=E2=80=A6.
>>
>> The draft redirect-to-PATH_ID is providing the means to signal a
>> flow-based redirect/steering service, and have each recipient router
>> identify using local recursion for the PATH_IDs the corresponding
>> tunnels/redirect-info. This allows for tunnel setup complexity to be tak=
en
>> away from BGP, while at the same time BGP is doing what it is very good =
at
>> doing: "It signals a policy=E2=80=9D in reliable fashion.
>>
>> Kind Regards,
>> G/
>>
>> <>send snip<>
>>
>> When looking at: draft-litkowski-idr-flowspec-interfaceset then find
>> that this is a signalling method to identify on which interfaces the rul=
e
>> needs to be activated upon. It is orthogonal from Redirect-to-path.
>>
>> Segment Routing is a fine technology to built shortest Path and TE
>> tunnels. Traffic steering is much more then redirecting to a Segment ID.
>>
>> Looking at the above, I see little logic in your proposal Robin.
>>
>> G/
>>
>> From: Lizhenbin <lizhenbin@huawei.com>
>> Date: Monday 26 October 2015 at 17:19
>> To: Gunter Van de Velde <gunter.van_de_velde@alcatel-lucent.com>, Gunter
>> Van De Velde <guntervandeveldecc@icloud.com>, Robert Raszuk <
>> robert@raszuk.net>
>> Cc: "idr@ietf.org" <idr@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>, "
>> spring@ietf.org" <spring@ietf.org>
>> Subject: Regarding "Semantics Independent" Flowspec//=E7=AD=94=E5=A4=8D:=
 =E7=AD=94=E5=A4=8D: [Idr] New
>> draft - Flowspec Path Redirect
>>
>> Hi Folks,
>>
>> I think now the drafts of BGP Flowspec for redirect to VRF/IP/Tunnel
>> keeps the traditional way to  extend BGP Flowspec to redirect to an enti=
ty
>> with explicit meaning which has been defined clearly in the existing wor=
k.
>>
>> Now draft-vandevelde-idr-flowspec-path-redirect is to introduce the Path
>> ID which can represent many forwarding entities.
>> draft-litkowski-idr-flowspec-interfaceset is also to introduce the new
>> =E2=80=9Cgroup ID=E2=80=9D concepts.
>>
>> There will be the problem how to define the path ID and group ID. In
>> fact, my early comments proposed the suggestion that we can reuse some w=
ork
>> of segment routing and generalize the concept of Segment, then it
>>
>> can provide a base for the abstracted view of different forwarding
>> entities. In order to explain the usage, I proposed the draft
>> draft-li-spring-segment-path-programming to try to explain the idea
>> clearly. Since now
>>
>> segment ID can be the indicator of interface, node, tunnel, if we do not
>> map segment ID to MPLS label or IPv6 address, it can be an identifier of
>> all kinds of forwarding entities in the control plane which can be used
>> outside.
>>
>> Please refer to the Please refer to =E2=80=9C5.  Usecases of Segment Pat=
h
>> Programming=E2=80=9D of draft-li-spring-segment-path-programming:
>>
>> -- 5.3.  Steering Traffic without Mapping Segment to Label: This is the
>> usecase to use segment ID to implement =E2=80=9Credirect to IP/Link=E2=
=80=9D.
>>
>> -- 5.4.  Centralized Mapping Service to Tunnels: This is the usecase to
>> use segment ID to implement =E2=80=9Credirect to tunnel=E2=80=9D.
>>
>> If BGP Flowspec can carry multiple segment IDs which represent different
>> links of nodes, it can implement =E2=80=9Credirect to interface group=E2=
=80=9D.
>>
>> So I think if we can consolidate work of
>> draft-vandevelde-idr-flowspec-path-redirect/
>> draft-litkowski-idr-flowspec-interfaceset/
>> draft-li-spring-segment-path-programming to propose the draft of BGP
>> Flowspec =E2=80=9CRedirect to Segment ID=E2=80=9D
>>
>> to implement =E2=80=9CSemantics Independent=E2=80=9D Flowspec. The exist=
ing SRGB info
>> advertisement and SID allocation mechanism can be easily reused and
>> enhanced to provide the base instead of defining the new idea and
>> implementation of
>>
>> Path ID/Group ID.
>>
>>
>>
>>
>>
>>
>>
>> Best Regards,
>>
>> Zhenbin(Robin)
>>
>>
>>
>>
>>
>> *=E5=8F=91=E4=BB=B6=E4=BA=BA:* VAN DE VELDE, Gunter (Gunter) [
>> mailto:gunter.van_de_velde@alcatel-lucent.com
>> <gunter.van_de_velde@alcatel-lucent.com>]
>> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:* 2015=E5=B9=B49=E6=9C=8828=E6=97=
=A5 20:29
>> *=E6=94=B6=E4=BB=B6=E4=BA=BA:* Lizhenbin; Gunter Van De Velde; Robert Ra=
szuk
>> *=E6=8A=84=E9=80=81:* idr@ietf.org; pce@ietf.org
>> *=E4=B8=BB=E9=A2=98:* Re: =E7=AD=94=E5=A4=8D: [Idr] New draft - Flowspec=
 Path Redirect
>>
>>
>>
>> Dear Zhenbin,
>>
>>
>>
>> For (1.) I=E2=80=99ll compose some more text in a -01 version of the exi=
sting
>> draft to document Flowspec PATH=E2=80=93ID. I assumed that it was clear =
with text
>> already in the document, however, confusion seems to happen nevertheless=
.
>>
>>
>>
>> For (2.) the indirection by abstraction is the beauty of the idea and
>> that is why its offering a more flexible solution then other idea's arou=
nd
>> the topic out there. Its an abstract forwarding indirection ID provided =
by
>> BGP flow spec. Existing technology (PCE, SR, RSVP, manual-config,
>> orchestration, etc=E2=80=A6) can be used to create/signal/maintain/etc t=
he
>> tunnel/LSP/redirect-next-hop per application/service.
>>
>>
>>
>> The proposal draft-vandevelde-idr-flowspec-path-redirect-00
>> <https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-path-redirect=
-00> does
>> not provide a label or encap information but recipient uses localised
>> redirect information from existing and fine working technologies.
>>
>>
>>
>> Btw, your statement below that only one Path-ID can be signalled is wron=
g
>> and is to some degree documented in the existing draft.
>>
>>
>>
>> G/
>>
>>
>>
>>
>>
>>
>>
>> *From: *Lizhenbin
>> *Date: *Monday 28 September 2015 13:16
>> *To: *Gunter Van De Velde, Robert Raszuk
>> *Cc: *"idr@ietf.org", Gunter Van de Velde, "pce@ietf.org"
>> *Subject: *=E7=AD=94=E5=A4=8D: [Idr] New draft - Flowspec Path Redirect
>>
>>
>>
>> Hi Gunter and Robert,
>>
>> We are also doing similar work. Regarding the draft, the major concern i=
s
>> as follows:
>>
>> 1. What does the PATH_ID represent? Does it mean only tunnel/LSP or all
>> possible forwarding path including tunnel/LSP, interface, VRF, nexthop, =
etc?
>>
>> 2. How to allocate the PATH_ID for the forwarding path?
>>
>> We think the forwarding behavior for Flowspec is always actual forwardin=
g
>> concepts including VRF, nexthop, etc. So we proposed =E2=80=98redirect t=
o tunnel=E2=80=99
>> in similar way. But for PATH_ID you proposed is another way to generaliz=
e
>> all possible forwarding path. It may be a new way to define forwarding
>> behavior for BGP Flowspec.
>>
>>
>>
>> Regarding redirecting tunnel, we proposed several drafts for your
>> reference:
>>
>> -- draft-hao-idr-flowspec-nvo3-00
>>
>> -- draft-li-idr-mpls-path-programming-01
>>
>> -- draft-li-spring-tunnel-segment-00
>>
>> -- draft-chen-pce-pce-initiated-ip-tunnel-00
>>
>> -- draft-li-pce-tunnel-segment-00
>>
>>
>>
>> As Weiguo mentioned, the "redirect to Tunnel" for BGP Flowspec has been
>> described briefly in draft-hao-idr-flowspec-nvo3-00. We will split it in=
to
>> two drafts: 1. draft-hao-idr-flowspec-nvo3-01; 2. one independent draft =
to
>> define the "redirect to tunnel" for BGP Flowspec.
>>
>>
>>
>> For "redirect to tunnel" for BGP flowspec, in fact there can be two type=
s
>> of such behaviors:
>>
>> 1. Specify the tunnel type:
>>
>> For this behavior, we will reuse the IP tunnel types defined in
>> [draft-rosen-idr-tunnel-encaps-00] and the MPLS tunnel types defined in
>> [draft-li-idr-mpls-path-programming-01].
>>
>> 2. Specify the specific tunnel:
>>
>> For MPLS TE tunnel, there can be multiple MPLS TE tunnels for a specific
>> destination. The tunnel type may be not enough. Then it is necessary to
>> specify the specific MPLS TE tunnel through Tunnel Identifier. [RFC3209]
>> defined the Tunnel Identifier for MPLS TE tunnel. PCE-initiated LSP adop=
ted
>> the Tunnel Identifier for which tunnel ID can be allocated by PCE.
>> [draft-li-idr-mpls-path-programming-01] will try to reuse the tunnel
>> identifier and define it in the tunnel attribute which can be used for
>> "redirect to tunnel" in [draft-hao-idr-flowspec-nvo3-00].
>>
>> For IP tunnel, there is always only one IP forwarding path for a specifi=
c
>> destination. So When define "redirect to specific IP tunnel" the nexthop
>> plus the tunnel type may be enough in the existing deployment. As the
>> development of IP tunnels, it may be popular to configure multiple IP
>> tunnels for the specific destination. For examples we can define multipl=
e
>> MPLS-in-UDP tunnels for which the destination is same and the port numbe=
r
>> can be different for the purpose of ECMP. In order to cope with such
>> development, [draft-chen-pce-pce-initiated-ip-tunnel-00] is proposed to
>> introduce the tunnel identifier for IP tunnels for which tunnel ID can a=
lso
>> be allocated by PCE as the MPLS TE tunnel. It may be also reused in the
>> tunnel attributes for the "redirect to tunnel".
>>
>>
>>
>> We think if it is only to think about "redirect to tunnel" for the BGP
>> Flowspec there has already been much existing work and it is better to
>> reuse them.
>>
>>
>>
>> In fact the existing work to specify a specific tunnel the tunnel
>> identifier is a combination with the ingress address/egress address and
>> tunnel ID. But for the draft
>> draft-vandevelde-idr-flowspec-path-redirect-00, PATH_ID can be only one
>> value to represent one tunnel. Recently we proposed the drafts
>> draft-li-spring-tunnel-segment-00/ draft-li-pce-tunnel-segment-00 in whi=
ch
>> the segment ID/label can be allocated for a tunnel. This is also to use =
one
>> value to represent a tunnel. Now Segment Routing has defined many types
>> segments which can map to different forwarding path such as interface,
>> node, tunnel, etc. From my point of view, the work to define
>> Segment-ID/Label and PATH-ID for the forwarding path can be consolidated
>> and incorporated in the SRPING work. If we hope to define the generalize=
d
>> concept, maybe we can define =E2=80=9CRedirect to Segment=E2=80=9D for t=
he BGP Flowspec. In
>> [draft-li-idr-mpls-path-programming-01], we define the label combination
>> attributes to map the service to the MPLS forwarding path. Maybe it can =
be
>> enhanced to SID stack attribute to map to general forwarding path which =
can
>> be used for multiple BGP address family including BGP Flowspec.
>>
>>
>>
>> This is about our thinking on the "redirect to tunnel/path" work. Hope t=
o
>> get your opinion on it.
>>
>>
>>
>>
>>
>> Best Regards,
>>
>> Zhenbin(Robin)
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> *=E5=8F=91=E4=BB=B6=E4=BA=BA:* Idr [mailto:idr-bounces@ietf.org <idr-bou=
nces@ietf.org>] *=E4=BB=A3=E8=A1=A8 *Gunter
>> Van De Velde
>> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:* 2015=E5=B9=B49=E6=9C=8823=E6=97=
=A5 20:44
>> *=E6=94=B6=E4=BB=B6=E4=BA=BA:* Robert Raszuk
>> *=E6=8A=84=E9=80=81:* idr@ietf.org; VAN DE VELDE, Gunter (Gunter)
>> *=E4=B8=BB=E9=A2=98:* Re: [Idr] New draft - Flowspec Path Redirect
>>
>>
>>
>> Interresting question... I see few options to address this. (And fwiw, i
>> left this currently intentionally out the text to see if some ideas pop-=
up
>> to confirm or deny the ideas the authors had on this topic)
>>
>> The one which currently to me resonates most is to treat the path-id
>> similar as a traditional bgp next-hop address... Meaning, that if the
>> receiving router does't have a "valid" entry in the locallised path-id
>> table it treats flowspec rule as withdraw.
>>
>> Decision on what is considered "valid" is at first glance a local router
>> decision.
>>
>> If you have another proposal i would be happy to learn and see if it
>> resonates.
>>
>> Ciao,
>> G/
>>
>>
>>
>> Sent using CloudMagic Email
>> <https://cloudmagic.com/k/d/mailapp?ct=3Dpa&cv=3D7.3.5&pv=3D5.1.1&source=
=3Demail_footer_2>
>>
>> On Wed, Sep 23, 2015 at 10:56 AM, Robert Raszuk <robert@raszuk.net>
>> wrote:
>>
>>
>>
>> Hey Gunter,
>>
>> Let me ask you a question (which in fact also applies to redirect to
>> next hop draft).
>>
>> What is the expected system action when the redirect path is down
>> (assuming you have tools to detect it) or next hop you are redirecting
>> it to is unreachable ?
>>
>> I read your draft but other then definition of the encoding I was not
>> able to find answers for this.
>>
>> The original RFC5575 recommended redirect to local VRF which is just
>> as loopback normally up and within that VRF your orchestration can
>> redirect to next hop or path with whatever encapsulation you like.
>>
>> Here you (and redirect to next hop folks) are making a shortcut
>> however in both works I have not seen a proper discussion nor
>> definition of set of procedures which need to be executed upon your
>> redirect entity failure.
>>
>> I suggest both documents are updated with that before we proceed
>> further with both proposals.
>>
>> Cheers,
>> R.
>>
>>
>>
>>
>> On Wed, Sep 23, 2015 at 10:18 AM, VAN DE VELDE, Gunter (Gunter)
>> <gunter.van_de_velde@alcatel-lucent.com> wrote:
>> > Hi Folks,
>> >
>> > We have created a new draft to allow the capability to have Flowspec
>> signal
>> > a redirect to tunnel/LSP.
>> >
>> >
>> https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-path-redirect-=
00
>> >
>> > The base principle is to use the indirection capability of BGP for pat=
h
>> > redirection.
>> >
>> > This proposal defines a new flowspec community to signal a redirect
>> > =E2=80=98path-id=E2=80=99. This path-id is is either a 128bit or 32bit=
 value
>> > Assumed is that recipient router supporting path-id redirect have a
>> > localised path-id indexed table containing LSP/tunnel encapsulation
>> > information.
>> > Existing technology can be used to construct/create this table (LDP, S=
R,
>> > RSVP, manual-config, etc=E2=80=A6) on a recipient router. The LSP/tunn=
el encap
>> table
>> > is indexed using 32 or 128 bit values.
>> >
>> > Flowspec path-id community is used to activate a redirect LSP/tunnel a=
nd
>> > provide by indirection the LSP/tunnel information for the flowspec
>> > identified traffic towards the LSP/tunnel.
>> >
>> > Benefits:
>> >
>> > no need for signalling labels or extra encap in BGP
>> > Each path-id indexed LSP/tunnel table is a localised construct
>> > existing technology is used to construct the path-id indexed localised
>> table
>> > Compatibility with technologies already using 32 or 128 bit identifier=
s
>> for
>> > paths and sessions
>> > Easy for flow spec to signal as it introduces no need to signal labels
>> etc=E2=80=A6
>> > no conflicts with existing label exchange technologies
>> >
>> > Feedback welcome.
>> >
>> > G/
>> >
>> > _______________________________________________
>> > Idr mailing list
>> > Idr@ietf.org
>> > https://www.ietf.org/mailman/listinfo/idr
>> >
>>
>> _______________________________________________
>> Idr mailing list
>> Idr@ietf.org
>> https://www.ietf.org/mailman/listinfo/idr
>>
>>

--f46d043c7d807a4f4e0523133718
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<p dir=3D"ltr">My question was specifically why *new* one is needed to just=
 work as a marker ?</p>
<p dir=3D"ltr">R.</p>
<div class=3D"gmail_quote">On Oct 27, 2015 10:44 AM, &quot;VAN DE VELDE, Gu=
nter (Gunter)&quot; &lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucen=
t.com">gunter.van_de_velde@alcatel-lucent.com</a>&gt; wrote:<br type=3D"att=
ribution"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bord=
er-left:1px #ccc solid;padding-left:1ex">



<div style=3D"word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-fam=
ily:Calibri,sans-serif">
<div>
<div>It =E2=80=98is&#39; a community=E2=80=A6 just one used to indicate a r=
edirection/traffic-steering service=E2=80=A6=C2=A0</div>
<div><br>
</div>
<div>
<div></div>
</div>
</div>
<div>G/</div>
<div><br>
</div>
<span>
<div style=3D"font-family:Calibri;font-size:12pt;text-align:left;color:blac=
k;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADD=
ING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:me=
dium none;PADDING-TOP:3pt">
<span style=3D"font-weight:bold">From: </span>&lt;<a href=3D"mailto:rraszuk=
@gmail.com" target=3D"_blank">rraszuk@gmail.com</a>&gt; on behalf of Robert=
 Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_blank">robert@r=
aszuk.net</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Tuesday 27 October 2015 at 10=
:37<br>
<span style=3D"font-weight:bold">To: </span>Gunter Van de Velde &lt;<a href=
=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank">gunter=
.van_de_velde@alcatel-lucent.com</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:rtgwg@i=
etf.org" target=3D"_blank">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mailto:r=
tgwg@ietf.org" target=3D"_blank">rtgwg@ietf.org</a>&gt;, &quot;<a href=3D"m=
ailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a>&quot; &lt;<a h=
ref=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a>&gt;,
 &quot;<a href=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</a>&q=
uot; &lt;<a href=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</a>=
&gt;, Gunter Van De Velde &lt;<a href=3D"mailto:guntervandeveldecc@icloud.c=
om" target=3D"_blank">guntervandeveldecc@icloud.com</a>&gt;, Lizhenbin &lt;=
<a href=3D"mailto:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.=
com</a>&gt;,
 Haoweiguo &lt;<a href=3D"mailto:haoweiguo@huawei.com" target=3D"_blank">ha=
oweiguo@huawei.com</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>Re: [Idr] Regarding &quot;=
Semantics Independent&quot; Flowspec//=E7=AD=94=E5=A4=8D: =E7=AD=94=E5=A4=
=8D: New draft - Flowspec Path Redirect<br>
</div>
<div><br>
</div>
<div>
<div>
<p dir=3D"ltr">Gunter,</p>
<p dir=3D"ltr">No one in BGP land will question that decoupling and indirec=
tion is a good thing.</p>
<p dir=3D"ltr">But why do you need new PATH_ID rather then just using commu=
nity as a marker ? Be it regular, extended or wide ?</p>
<p dir=3D"ltr">Cheers,<br>
R.</p>
<div class=3D"gmail_quote">On Oct 27, 2015 10:01 AM, &quot;VAN DE VELDE, Gu=
nter (Gunter)&quot; &lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucen=
t.com" target=3D"_blank">gunter.van_de_velde@alcatel-lucent.com</a>&gt; wro=
te:<br type=3D"attribution">
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<div style=3D"word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-fam=
ily:Calibri,sans-serif">
<div>
<div>
<div>When configuring a PBR on a router using CLI you identify the =E2=80=
=98interesting=E2=80=99 traffic and the =E2=80=98actions=E2=80=99 =C2=A0upo=
n the interesting traffic.</div>
<div>
<div></div>
</div>
</div>
</div>
<div><br>
</div>
<div>PBR does not do anything for tunnel-setup or signaling=E2=80=A6 I do n=
ot think that Flowspec should be involved at all with set-up or=C2=A0</div>
<div>tunnel initiation as there are much better solutions to achieve that g=
oal in existence already. Flowspec can be used by a controller=C2=A0</div>
<div>to signal policies, and a next to traffic conditioning instructions a =
redirect policy seems as a reasonable fit.=C2=A0</div>
<div><br>
</div>
<div>Long story short: BGP Flowspec allows a controller to signal in a deco=
upled fashion both flow conditioning (already=C2=A0</div>
<div>exists) and flow steering (PATH_ID) meta-data. The receiving router co=
nsumes this meta-data and takes based upon that=C2=A0</div>
<div>meta-data localised decisions. Decoupling is a very powerful tool.</di=
v>
<div><br>
</div>
<div>G/</div>
<div><br>
</div>
<span>
<div style=3D"font-family:Calibri;font-size:12pt;text-align:left;color:blac=
k;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADD=
ING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:me=
dium none;PADDING-TOP:3pt">
<span style=3D"font-weight:bold">From: </span>Haoweiguo &lt;<a href=3D"mail=
to:haoweiguo@huawei.com" target=3D"_blank">haoweiguo@huawei.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Tuesday 27 October 2015 at 03=
:24<br>
<span style=3D"font-weight:bold">To: </span>Gunter Van de Velde &lt;<a href=
=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank">gunter=
.van_de_velde@alcatel-lucent.com</a>&gt;, Lizhenbin &lt;<a href=3D"mailto:l=
izhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;,
 Gunter Van De Velde &lt;<a href=3D"mailto:guntervandeveldecc@icloud.com" t=
arget=3D"_blank">guntervandeveldecc@icloud.com</a>&gt;, Robert Raszuk &lt;<=
a href=3D"mailto:robert@raszuk.net" target=3D"_blank">robert@raszuk.net</a>=
&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>&quot;<a href=3D"mailto:idr@iet=
f.org" target=3D"_blank">idr@ietf.org</a>&quot; &lt;<a href=3D"mailto:idr@i=
etf.org" target=3D"_blank">idr@ietf.org</a>&gt;, &quot;<a href=3D"mailto:sp=
ring@ietf.org" target=3D"_blank">spring@ietf.org</a>&quot; &lt;<a href=3D"m=
ailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a>&gt;,
 &quot;<a href=3D"mailto:rtgwg@ietf.org" target=3D"_blank">rtgwg@ietf.org</=
a>&quot; &lt;<a href=3D"mailto:rtgwg@ietf.org" target=3D"_blank">rtgwg@ietf=
.org</a>&gt;<br>
<span style=3D"font-weight:bold">Subject: </span>RE: [Idr] Regarding &quot;=
Semantics Independent&quot; Flowspec//=E7=AD=94=E5=A4=8D: =E7=AD=94=E5=A4=
=8D: New draft - Flowspec Path Redirect<br>
</div>
<div><br>
</div>
<div dir=3D"ltr">
<div style=3D"FONT-FAMILY:Calibri,sans-serif;WORD-WRAP:break-word;COLOR:rgb=
(0,0,0);FONT-SIZE:14px">
<div style=3D"direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt=
">
<p><font size=3D"3" face=3D"Times New Roman">Hi Gunter,</font></p>
<p><font size=3D"3" face=3D"Times New Roman">Understood your design method =
is to just specify PATH_ID in flowspec message, and let the routers do loca=
l recursive action to select a set of specific tunnel(s), the tunnel and PA=
TH_ID association should be configured
 beforehand at each router. The BGP flowspec initiator doesn&#39;t need to =
specify detail tunnel attributes, the flowspec message is tunnel semantic a=
gnostic. The router local decision is totally unrestrictive, the validation=
 and security seems to be hard to be
 controlled.</font></p>
<p><font size=3D"3" face=3D"Times New Roman">In traditional BGP flowspec de=
signing, BGP flowspec initiator specifies detail match fields and actions, =
the routers only enforce the actions without any flexibility for local deci=
sion. If using the traditional method,
 you worry about the complexity to specify detail tunnel attributes. </font=
></p>
<p><font size=3D"3" face=3D"Times New Roman">If the BGP flowspec initiator =
only cares about the redirect target IP address and tunnel type like NVO3, =
the tunnel attribute only need to include head-end information.
</font><font size=3D"3" face=3D"Times New Roman">The attribute can be descr=
ibed by <span style=3D"COLOR:rgb(31,73,125)">
draft-rosen-idr-tunnel-encaps-00, we only need to extend the draft usage fo=
r flowspec application.</span></font></p>
<p><font size=3D"3" face=3D"Times New Roman"><span style=3D"COLOR:rgb(31,73=
,125)"><font color=3D"#000000">If the BGP flowspec initiator cares about th=
e redirect target IP address and other QOS attributes such as BW, we can sp=
ecify the additional attribute using BGP
 to notify the router, then the router perform local tunnel selection per t=
he attribute.</font></span></font></p>
<p><font color=3D"#000000" size=3D"3" face=3D"Times New Roman"><span style=
=3D"COLOR:rgb(31,73,125)">In summary, i think the router local decision sho=
uld not be completely unrestrictive, the BGP flowspec initiator should spec=
ify some constraint tunnel attribute to restrict
 local tunnel selection. The most relaxing mode is to only specify redirect=
 target IP address. More strictly attribute specification will=C2=A0strengt=
hen the constraint for each router&#39;s local tunnel selection. This metho=
d will faciliate the validation and security
 concern.</span></font></p>
<p><font color=3D"#000000" size=3D"3" face=3D"Times New Roman"><span style=
=3D"COLOR:rgb(31,73,125)"></span></font><font color=3D"#000000" size=3D"3" =
face=3D"Times New Roman"><span style=3D"COLOR:rgb(31,73,125)">Thanks,</span=
></font></p>
<p><font color=3D"#000000" size=3D"3" face=3D"Times New Roman"><span style=
=3D"COLOR:rgb(31,73,125)">weiguo</span></font></p>
<p></p>
<hr>
<p></p>
<div style=3D"FONT-FAMILY:Times New Roman;COLOR:#000000;FONT-SIZE:16px">
<div style=3D"DIRECTION:ltr"><font size=3D"2" face=3D"Tahoma"><b>From:</b> =
Idr [<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank">idr-bounces@=
ietf.org</a>] on behalf of VAN DE VELDE, Gunter (Gunter) [<a href=3D"mailto=
:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank">gunter.van_de_ve=
lde@alcatel-lucent.com</a>]<br>
<b>Sent:</b> Tuesday, October 27, 2015 0:47<br>
<b>To:</b> Lizhenbin; Gunter Van De Velde; Robert Raszuk<br>
<b>Cc:</b> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</=
a>; <a href=3D"mailto:spring@ietf.org" target=3D"_blank">
spring@ietf.org</a>; <a href=3D"mailto:rtgwg@ietf.org" target=3D"_blank">rt=
gwg@ietf.org</a><br>
<b>Subject:</b> Re: [Idr] Regarding &quot;Semantics Independent&quot; Flows=
pec//=E7=AD=94=E5=A4=8D: =E7=AD=94=E5=A4=8D: New draft - Flowspec Path Redi=
rect<br>
</font><br>
</div>
<div></div>
<div>
<div>
<div>
<div>
<div>
<div>Let me just copy the answer I sent to another email I just sent to IDR=
:</div>
<div><br>
</div>
<div>&lt;&gt;start snip&lt;&gt;</div>
<div>Hi Robin,</div>
<div><br>
</div>
<div>Thanks for your note.</div>
<div><br>
</div>
<div>A tunnel is not always going over shortest path. Some tunnels are TE t=
unnels and are deliberately not going over a shortest path. This is somethi=
ng that=C2=A0<span style=3D"COLOR:rgb(31,73,125)">draft-rosen-idr-tunnel-en=
caps-00=C2=A0</span>will not help to signal
 because the tunnel-encap attribute indicates tunnel parameters used by the=
 tail-end.</div>
<div><br>
</div>
<div>If a redirect tunnel represents a particular redirect/steering service=
 (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then it =
does become rather complex for BGP as signalling technology because a tunne=
l relationship is a unique between &#39;a headend&#39;
 and =E2=80=98a tailed&#39; device. It seems better to leave tunnel-setup t=
o dedicated tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.</div>
<div><br>
</div>
<div>The draft redirect-to-PATH_ID is providing the means to signal a flow-=
based redirect/steering service, and have each recipient router identify us=
ing local recursion for the PATH_IDs the corresponding tunnels/redirect-inf=
o. This allows for tunnel setup
 complexity to be taken away from BGP, while at the same time BGP is doing =
what it is very good at doing: &quot;It signals a policy=E2=80=9D in reliab=
le fashion.</div>
</div>
<div><br>
</div>
<div>Kind Regards,</div>
<div>G/</div>
</div>
<div>
<div></div>
</div>
</div>
</div>
<div><br>
</div>
<div>&lt;&gt;send snip&lt;&gt;</div>
<div><br>
</div>
<div>When looking at:=C2=A0<span style=3D"COLOR:rgb(31,73,125)">draft-litko=
wski-idr-flowspec-interfaceset t</span>hen find that this is a signalling m=
ethod to identify on which interfaces the rule needs to be activated upon. =
It is orthogonal from Redirect-to-path.</div>
<div><br>
</div>
<div>Segment Routing is a fine technology to built shortest Path and TE tun=
nels. Traffic steering is much more then redirecting to a Segment ID.=C2=A0=
</div>
<div><br>
</div>
<div>Looking at the above, I see little logic in your proposal Robin.</div>
<div><br>
</div>
<div>G/</div>
<div><br>
</div>
<span>
<div style=3D"BORDER-BOTTOM:medium none;TEXT-ALIGN:left;BORDER-LEFT:medium =
none;PADDING-BOTTOM:0in;PADDING-LEFT:0in;PADDING-RIGHT:0in;FONT-FAMILY:Cali=
bri;COLOR:black;FONT-SIZE:12pt;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:me=
dium none;PADDING-TOP:3pt">
<span style=3D"FONT-WEIGHT:bold">From: </span>Lizhenbin &lt;<a href=3D"mail=
to:lizhenbin@huawei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt;<br>
<span style=3D"FONT-WEIGHT:bold">Date: </span>Monday 26 October 2015 at 17:=
19<br>
<span style=3D"FONT-WEIGHT:bold">To: </span>Gunter Van de Velde &lt;<a href=
=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank">gunter=
.van_de_velde@alcatel-lucent.com</a>&gt;, Gunter Van De Velde &lt;<a href=
=3D"mailto:guntervandeveldecc@icloud.com" target=3D"_blank">guntervandeveld=
ecc@icloud.com</a>&gt;,
 Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_blank">r=
obert@raszuk.net</a>&gt;<br>
<span style=3D"FONT-WEIGHT:bold">Cc: </span>&quot;<a href=3D"mailto:idr@iet=
f.org" target=3D"_blank">idr@ietf.org</a>&quot; &lt;<a href=3D"mailto:idr@i=
etf.org" target=3D"_blank">idr@ietf.org</a>&gt;, &quot;<a href=3D"mailto:rt=
gwg@ietf.org" target=3D"_blank">rtgwg@ietf.org</a>&quot; &lt;<a href=3D"mai=
lto:rtgwg@ietf.org" target=3D"_blank">rtgwg@ietf.org</a>&gt;,
 &quot;<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org=
</a>&quot; &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@=
ietf.org</a>&gt;<br>
<span style=3D"FONT-WEIGHT:bold">Subject: </span>Regarding &quot;Semantics =
Independent&quot; Flowspec//=E7=AD=94=E5=A4=8D: =E7=AD=94=E5=A4=8D: [Idr] N=
ew draft - Flowspec Path Redirect<br>
</div>
<div><br>
</div>
<div>
<div lang=3D"ZH-CN">
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Hi Folks,</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">I think now the drafts of B=
GP Flowspec for redirect to VRF/IP/Tunnel keeps the traditional way to =C2=
=A0extend BGP Flowspec to redirect to an entity
 with explicit meaning which has been defined clearly in the existing work.=
 </span>
</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Now draft-vandevelde-idr-fl=
owspec-path-redirect is to introduce the Path ID which can represent many f=
orwarding entities. draft-litkowski-idr-flowspec-interfaceset
 is also to introduce the new =E2=80=9Cgroup ID=E2=80=9D concepts. </span><=
/p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">There will be the problem h=
ow to define the path ID and group ID. In fact, my early comments proposed =
the suggestion that we can reuse some
 work of segment routing and generalize the concept of Segment, then it </s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">can provide a base for the =
abstracted view of different forwarding entities. In order to explain the u=
sage, I proposed the draft draft-li-spring-segment-path-programming
 to try to explain the idea clearly. Since now </span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">segment ID can be the indic=
ator of interface, node, tunnel, if we do not map segment ID to MPLS label =
or IPv6 address, it can be an identifier
 of all kinds of forwarding entities in the control plane which can be used=
 outside.
</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Please refer to the Please =
refer to =E2=80=9C5.=C2=A0 Usecases of Segment Path Programming=E2=80=9D of=
 draft-li-spring-segment-path-programming:
</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- 5.3.=C2=A0 Steering Traf=
fic without Mapping Segment to Label: This is the usecase to use segment ID=
 to implement =E2=80=9Credirect to IP/Link=E2=80=9D.</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- 5.4.=C2=A0 Centralized M=
apping Service to Tunnels: This is the usecase to use segment ID to impleme=
nt =E2=80=9Credirect to tunnel=E2=80=9D.</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">If BGP Flowspec can carry m=
ultiple segment IDs which represent different links of nodes, it can implem=
ent =E2=80=9Credirect to interface group=E2=80=9D.</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">So I think if we can consol=
idate work of draft-vandevelde-idr-flowspec-path-redirect/ draft-litkowski-=
idr-flowspec-interfaceset/ draft-li-spring-segment-path-programming
 to propose the draft of BGP Flowspec =E2=80=9CRedirect to Segment ID=E2=80=
=9D </span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">to implement =E2=80=9CSeman=
tics Independent=E2=80=9D Flowspec. The existing SRGB info advertisement an=
d SID allocation mechanism can be easily reused and enhanced
 to provide the base instead of defining the new idea and implementation of=
 </span>
</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Path ID/Group ID.</span></p=
>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Best Regards,</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Zhenbin(Robin)</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
<div>
<div style=3D"BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOT=
TOM:0cm;PADDING-LEFT:0cm;PADDING-RIGHT:0cm;BORDER-TOP:#b5c4df 1pt solid;BOR=
DER-RIGHT:medium none;PADDING-TOP:3pt">
<p class=3D"MsoNormal"><b><span style=3D"FONT-SIZE:10pt">=E5=8F=91=E4=BB=B6=
=E4=BA=BA<span lang=3D"EN-US">:</span></span></b><span style=3D"FONT-SIZE:1=
0pt" lang=3D"EN-US"> VAN DE VELDE, Gunter (Gunter) [<a href=3D"mailto:gunte=
r.van_de_velde@alcatel-lucent.com" target=3D"_blank">mailto:gunter.van_de_v=
elde@alcatel-lucent.com</a>]
<br>
</span><b><span style=3D"FONT-SIZE:10pt">=E5=8F=91=E9=80=81=E6=97=B6=E9=97=
=B4<span lang=3D"EN-US">:</span></span></b><span style=3D"FONT-SIZE:10pt" l=
ang=3D"EN-US"> 2015</span><span style=3D"FONT-SIZE:10pt">=E5=B9=B4<span lan=
g=3D"EN-US">9</span>=E6=9C=88<span lang=3D"EN-US">28</span>=E6=97=A5<span l=
ang=3D"EN-US"> 20:29<br>
</span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></b><span=
 lang=3D"EN-US"> Lizhenbin; Gunter Van De Velde; Robert Raszuk<br>
</span><b>=E6=8A=84=E9=80=81<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">
idr@ietf.org</a>; <a href=3D"mailto:pce@ietf.org" target=3D"_blank">pce@iet=
f.org</a><br>
</span><b>=E4=B8=BB=E9=A2=98<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> Re: </span>=E7=AD=94=E5=A4=8D<span lang=3D"EN-US">: [Idr] New draft=
 - Flowspec Path Redirect</span></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US">Dear Zhenbin,</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US">For (1.) I=E2=80=99ll compose some m=
ore text in a -01 version of the existing draft to document Flowspec PATH=
=E2=80=93ID. I assumed that it was clear with text already
 in the document, however, confusion seems to happen nevertheless.=C2=A0</s=
pan></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US">For (2.) the indirection by abstract=
ion is the beauty of the idea and that is why its offering a more flexible =
solution then other idea&#39;s around the
 topic out there. Its an abstract forwarding indirection ID provided by BGP=
 flow spec. Existing technology (PCE, SR, RSVP, manual-config, orchestratio=
n, etc=E2=80=A6) can be used to create/signal/maintain/etc the tunnel/LSP/r=
edirect-next-hop per application/service.=C2=A0</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US">The proposal=C2=A0<a href=3D"https:/=
/tools.ietf.org/html/draft-vandevelde-idr-flowspec-path-redirect-00" target=
=3D"_blank"><span style=3D"FONT-FAMILY:=E5=AE=8B=E4=BD=93;FONT-SIZE:12pt">d=
raft-vandevelde-idr-flowspec-path-redirect-00</span></a>=C2=A0does
 not provide a label or encap information but recipient uses localised redi=
rect information from existing and fine working technologies.</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US">Btw, your statement below that only =
one Path-ID can be signalled is wrong and is to some degree documented in t=
he existing draft.</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US">G/</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div style=3D"BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOT=
TOM:0cm;PADDING-LEFT:0cm;PADDING-RIGHT:0cm;BORDER-TOP:#b5c4df 1pt solid;BOR=
DER-RIGHT:medium none;PADDING-TOP:3pt">
<p class=3D"MsoNormal"><b><span style=3D"FONT-FAMILY:Calibri,sans-serif;COL=
OR:black" lang=3D"EN-US">From:
</span></b><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:black" lang=
=3D"EN-US">Lizhenbin<br>
<b>Date: </b>Monday 28 September 2015 13:16<br>
<b>To: </b>Gunter Van De Velde, Robert Raszuk<br>
<b>Cc: </b>&quot;<a href=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf=
.org</a>&quot;, Gunter Van de Velde, &quot;<a href=3D"mailto:pce@ietf.org" =
target=3D"_blank">pce@ietf.org</a>&quot;<br>
<b>Subject: </b></span><span style=3D"COLOR:black">=E7=AD=94=E5=A4=8D</span=
><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:black" lang=3D"EN-US">=
: [Idr] New draft - Flowspec Path Redirect</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
black;FONT-SIZE:10.5pt" lang=3D"EN-US"></span>=C2=A0</p>
</div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Hi Gunter and Robert,</span=
><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">We are also doing similar w=
ork. Regarding the draft, the major concern is as follows:</span><span styl=
e=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">1. What does the PATH_ID re=
present? Does it mean only tunnel/LSP or all possible forwarding path inclu=
ding tunnel/LSP, interface, VRF, nexthop,
 etc?</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">2. How to allocate the PATH=
_ID for the forwarding path?</span><span style=3D"COLOR:black" lang=3D"EN-U=
S"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">We think the forwarding beh=
avior for Flowspec is always actual forwarding concepts including VRF, next=
hop, etc. So we proposed =E2=80=98redirect to
 tunnel=E2=80=99 in similar way. But for PATH_ID you proposed is another wa=
y to generalize all possible forwarding path. It may be a new way to define=
 forwarding behavior for BGP Flowspec.</span><span style=3D"COLOR:black" la=
ng=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Regarding redirecting tunne=
l, we proposed several drafts for your reference:</span><span style=3D"COLO=
R:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- draft-hao-idr-flowspec-n=
vo3-00</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- draft-li-idr-mpls-path-p=
rogramming-01</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- draft-li-spring-tunnel-s=
egment-00</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- draft-chen-pce-pce-initi=
ated-ip-tunnel-00</span><span style=3D"COLOR:black" lang=3D"EN-US"></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">-- draft-li-pce-tunnel-segm=
ent-00</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">As Weiguo mentioned, the &q=
uot;redirect to Tunnel&quot; for BGP Flowspec has been described briefly in=
 draft-hao-idr-flowspec-nvo3-00. We will split it
 into two drafts: 1. draft-hao-idr-flowspec-nvo3-01; 2. one independent dra=
ft to define the &quot;redirect to tunnel&quot; for BGP Flowspec.</span><sp=
an style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">For &quot;redirect to tunne=
l&quot; for BGP flowspec, in fact there can be two types of such behaviors:=
</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">1. Specify the tunnel type:=
</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">For this behavior, we will =
reuse the IP tunnel types defined in [draft-rosen-idr-tunnel-encaps-00] and=
 the MPLS tunnel types defined in [draft-li-idr-mpls-path-programming-01].<=
/span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">2. Specify the specific tun=
nel:</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">For MPLS TE tunnel, there c=
an be multiple MPLS TE tunnels for a specific destination. The tunnel type =
may be not enough. Then it is necessary
 to specify the specific MPLS TE tunnel through Tunnel Identifier. [RFC3209=
] defined the Tunnel Identifier for MPLS TE tunnel. PCE-initiated LSP adopt=
ed the Tunnel Identifier for which tunnel ID can be allocated by PCE. [draf=
t-li-idr-mpls-path-programming-01]
 will try to reuse the tunnel identifier and define it in the tunnel attrib=
ute which can be used for &quot;redirect to tunnel&quot; in [draft-hao-idr-=
flowspec-nvo3-00].
</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">For IP tunnel, there is alw=
ays only one IP forwarding path for a specific destination. So When define =
&quot;redirect to specific IP tunnel&quot; the nexthop
 plus the tunnel type may be enough in the existing deployment. As the deve=
lopment of IP tunnels, it may be popular to configure multiple IP tunnels f=
or the specific destination. For examples we can define multiple MPLS-in-UD=
P tunnels for which the destination
 is same and the port number can be different for the purpose of ECMP. In o=
rder to cope with such development, [draft-chen-pce-pce-initiated-ip-tunnel=
-00] is proposed to introduce the tunnel identifier for IP tunnels for whic=
h tunnel ID can also be allocated
 by PCE as the MPLS TE tunnel. It may be also reused in the tunnel attribut=
es for the &quot;redirect to tunnel&quot;.</span><span style=3D"COLOR:black=
" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">We think if it is only to t=
hink about &quot;redirect to tunnel&quot; for the BGP Flowspec there has al=
ready been much existing work and it is better to
 reuse them. </span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">In fact the existing work t=
o specify a specific tunnel the tunnel identifier is a combination with the=
 ingress address/egress address and tunnel
 ID. But for the draft draft-vandevelde-idr-flowspec-path-redirect-00, PATH=
_ID can be only one value to represent one tunnel. Recently we proposed the=
 drafts draft-li-spring-tunnel-segment-00/ draft-li-pce-tunnel-segment-00 i=
n which the segment ID/label can
 be allocated for a tunnel. This is also to use one value to represent a tu=
nnel. Now Segment Routing has defined many types segments which can map to =
different forwarding path such as interface, node, tunnel, etc. From my poi=
nt of view, the work to define Segment-ID/Label
 and PATH-ID for the forwarding path can be consolidated and incorporated i=
n the SRPING work. If we hope to define the generalized concept, maybe we c=
an define =E2=80=9CRedirect to Segment=E2=80=9D for the BGP Flowspec. In [d=
raft-li-idr-mpls-path-programming-01], we define
 the label combination attributes to map the service to the MPLS forwarding=
 path. Maybe it can be enhanced to SID stack attribute to map to general fo=
rwarding path which can be used for multiple BGP address family including B=
GP Flowspec.</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">This is about our thinking =
on the &quot;redirect to tunnel/path&quot; work. Hope to get your opinion o=
n it.
</span><span style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Best Regards,</span><span s=
tyle=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US">Zhenbin(Robin)</span><span =
style=3D"COLOR:black" lang=3D"EN-US"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY:Calibri,sans-serif;COLOR:=
rgb(31,73,125);FONT-SIZE:10.5pt" lang=3D"EN-US"></span><span style=3D"COLOR=
:black" lang=3D"EN-US"></span>=C2=A0</p>
<div style=3D"BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOT=
TOM:0cm;PADDING-LEFT:0cm;PADDING-RIGHT:0cm;BORDER-TOP:#b5c4df 1pt solid;BOR=
DER-RIGHT:medium none;PADDING-TOP:3pt">
<p class=3D"MsoNormal"><b><span style=3D"COLOR:black;FONT-SIZE:10pt">=E5=8F=
=91=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></span></b><span style=3D=
"COLOR:black;FONT-SIZE:10pt" lang=3D"EN-US"> Idr [<a href=3D"mailto:idr-bou=
nces@ietf.org" target=3D"_blank">mailto:idr-bounces@ietf.org</a>]
</span><b><span style=3D"COLOR:black;FONT-SIZE:10pt">=E4=BB=A3=E8=A1=A8 </s=
pan></b><span style=3D"COLOR:black;FONT-SIZE:10pt" lang=3D"EN-US">Gunter Va=
n De Velde<br>
</span><b><span style=3D"COLOR:black;FONT-SIZE:10pt">=E5=8F=91=E9=80=81=E6=
=97=B6=E9=97=B4<span lang=3D"EN-US">:</span></span></b><span style=3D"COLOR=
:black;FONT-SIZE:10pt" lang=3D"EN-US"> 2015</span><span style=3D"COLOR:blac=
k;FONT-SIZE:10pt">=E5=B9=B4<span lang=3D"EN-US">9</span>=E6=9C=88<span lang=
=3D"EN-US">23</span>=E6=97=A5<span lang=3D"EN-US">
 20:44<br>
</span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</span></b><span=
 lang=3D"EN-US"> Robert Raszuk<br>
</span><b>=E6=8A=84=E9=80=81<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">
idr@ietf.org</a>; VAN DE VELDE, Gunter (Gunter)<br>
</span><b>=E4=B8=BB=E9=A2=98<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> Re: [Idr] New draft - Flowspec Path Redirect</span></span><span sty=
le=3D"COLOR:black" lang=3D"EN-US"></span></p>
</div>
<p class=3D"MsoNormal"><span style=3D"COLOR:black" lang=3D"EN-US"></span>=
=C2=A0</p>
<p><span style=3D"COLOR:black" lang=3D"EN-US">Interresting question... I se=
e few options to address this. (And fwiw, i left this currently intentional=
ly out the text to see if some ideas pop-up to confirm or deny the ideas th=
e authors had on this topic)</span></p>
<p><span style=3D"COLOR:black" lang=3D"EN-US">The one which currently to me=
 resonates most is to treat the path-id similar as a traditional bgp next-h=
op address... Meaning, that if the receiving router does&#39;t have a &quot=
;valid&quot; entry in the locallised path-id table
 it treats flowspec rule as withdraw.</span></p>
<p><span style=3D"COLOR:black" lang=3D"EN-US">Decision on what is considere=
d &quot;valid&quot; is at first glance a local router decision.</span></p>
<p><span style=3D"COLOR:black" lang=3D"EN-US">If you have another proposal =
i would be happy to learn and see if it resonates.</span></p>
<p><span style=3D"COLOR:black" lang=3D"EN-US">Ciao,<br>
G/</span></p>
<div>
<p class=3D"MsoNormal"><span style=3D"COLOR:black" lang=3D"EN-US"><br>
<br>
Sent using <a href=3D"https://cloudmagic.com/k/d/mailapp?ct=3Dpa&amp;cv=3D7=
.3.5&amp;pv=3D5.1.1&amp;source=3Demail_footer_2" target=3D"_blank">
CloudMagic Email</a> </span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"COLOR:#787878" lang=3D"EN-US">On Wed,=
 Sep 23, 2015 at 10:56 AM, Robert Raszuk &lt;<a href=3D"mailto:robert@raszu=
k.net" target=3D"_blank">robert@raszuk.net</a>&gt; wrote:</span><span style=
=3D"COLOR:black" lang=3D"EN-US"></span></p>
</div>
<p class=3D"MsoNormal"><span style=3D"COLOR:black" lang=3D"EN-US"></span>=
=C2=A0</p>
<div>
<blockquote style=3D"MARGIN-TOP:5pt;MARGIN-BOTTOM:5pt">
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">He=
y Gunter,</span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">Le=
t me ask you a question (which in fact also applies to redirect to<br>
next hop draft).</span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">Wh=
at is the expected system action when the redirect path is down<br>
(assuming you have tools to detect it) or next hop you are redirecting<br>
it to is unreachable ?</span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">I =
read your draft but other then definition of the encoding I was not<br>
able to find answers for this.</span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">Th=
e original RFC5575 recommended redirect to local VRF which is just<br>
as loopback normally up and within that VRF your orchestration can<br>
redirect to next hop or path with whatever encapsulation you like.</span></=
p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">He=
re you (and redirect to next hop folks) are making a shortcut<br>
however in both works I have not seen a proper discussion nor<br>
definition of set of procedures which need to be executed upon your<br>
redirect entity failure.</span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">I =
suggest both documents are updated with that before we proceed<br>
further with both proposals.</span></p>
<p style=3D"MARGIN-BOTTOM:12pt;BACKGROUND:white"><span style=3D"COLOR:black=
" lang=3D"EN-US">Cheers,<br>
R.<br>
<br>
<br>
<br>
<br>
</span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">On=
 Wed, Sep 23, 2015 at 10:18 AM, VAN DE VELDE, Gunter (Gunter)<br>
&lt;<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_bl=
ank">gunter.van_de_velde@alcatel-lucent.com</a>&gt; wrote:<br>
&gt; Hi Folks,<br>
&gt;<br>
&gt; We have created a new draft to allow the capability to have Flowspec s=
ignal<br>
&gt; a redirect to tunnel/LSP.<br>
&gt;<br>
&gt; <a href=3D"https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-p=
ath-redirect-00" target=3D"_blank">
https://tools.ietf.org/html/draft-vandevelde-idr-flowspec-path-redirect-00<=
/a><br>
&gt;<br>
&gt; The base principle is to use the indirection capability of BGP for pat=
h<br>
&gt; redirection.<br>
&gt;<br>
&gt; This proposal defines a new flowspec community to signal a redirect<br=
>
&gt; </span><span style=3D"COLOR:black">=E2=80=98<span lang=3D"EN-US">path-=
id</span>=E2=80=99<span lang=3D"EN-US">. This path-id is is either a 128bit=
 or 32bit value<br>
&gt; Assumed is that recipient router supporting path-id redirect have a<br=
>
&gt; localised path-id indexed table containing LSP/tunnel encapsulation<br=
>
&gt; information.<br>
&gt; Existing technology can be used to construct/create this table (LDP, S=
R,<br>
&gt; RSVP, manual-config, etc</span>=E2=80=A6<span lang=3D"EN-US">) on a re=
cipient router. The LSP/tunnel encap table<br>
&gt; is indexed using 32 or 128 bit values.<br>
&gt;<br>
&gt; Flowspec path-id community is used to activate a redirect LSP/tunnel a=
nd<br>
&gt; provide by indirection the LSP/tunnel information for the flowspec<br>
&gt; identified traffic towards the LSP/tunnel.<br>
&gt;<br>
&gt; Benefits:<br>
&gt;<br>
&gt; no need for signalling labels or extra encap in BGP<br>
&gt; Each path-id indexed LSP/tunnel table is a localised construct<br>
&gt; existing technology is used to construct the path-id indexed localised=
 table<br>
&gt; Compatibility with technologies already using 32 or 128 bit identifier=
s for<br>
&gt; paths and sessions<br>
&gt; Easy for flow spec to signal as it introduces no need to signal labels=
 etc</span>=E2=80=A6<span lang=3D"EN-US"><br>
&gt; no conflicts with existing label exchange technologies<br>
&gt;<br>
&gt; Feedback welcome.<br>
&gt;<br>
&gt; G/<br>
&gt;<br>
&gt; _______________________________________________<br>
&gt; Idr mailing list<br>
&gt; <a href=3D"mailto:Idr@ietf.org" target=3D"_blank">Idr@ietf.org</a><br>
&gt; <a href=3D"https://www.ietf.org/mailman/listinfo/idr" target=3D"_blank=
">https://www.ietf.org/mailman/listinfo/idr</a><br>
&gt;</span></span></p>
<p style=3D"BACKGROUND:white"><span style=3D"COLOR:black" lang=3D"EN-US">__=
_____________________________________________<br>
Idr mailing list<br>
<a href=3D"mailto:Idr@ietf.org" target=3D"_blank">Idr@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" target=3D"_blank">htt=
ps://www.ietf.org/mailman/listinfo/idr</a></span></p>
</blockquote>
</div>
</div>
</div>
</div>
</div>
</div>
</span></div>
</div>
</div>
</div>
</div>
</span></div>
</blockquote>
</div>
</div>
</div>
</span>
</div>

</blockquote></div>

--f46d043c7d807a4f4e0523133718--


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From nobody Tue Oct 27 10:04:19 2015
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Subject: [Idr] Milestones changed for idr WG
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Changed milestone "Submit Error Handling for Optional Transitive BGP
Attributes to IESG as a Proposed Standard", set due date to January
2015 from December 2014, resolved as "Done", added
draft-ietf-idr-error-handling to milestone.

Changed milestone "Submit Advertisement of Multiple Paths in BGP to
IESG as a Proposed Standard", added draft-ietf-idr-add-paths,
draft-ietf-idr-route-oscillation-stop,
draft-ietf-idr-add-paths-guidelines to milestone.

Changed milestone "Submit Multisession BGP to IESG as a Proposed
Standard", set due date to November 2015 from March 2015.

Changed milestone "Submit MIB v2 for BGP-4 to IESG as a Proposed
Standard", set due date to November 2015 from January 2015.

Changed milestone "Submit Dynamic Capability for BGP-4 to IESG as a
Proposed Standard", set due date to December 2015 from March 2015.

Changed milestone "Revise WG charter", set due date to January 2016
from March 2015.

Changed milestone "Submit ASpath ORF draft to IESG as a Proposed
Standard", set due date to February 2016 from March 2015.

Changed milestone "Submit Yang BGP Modules to IESG as Proposed
Standard ", set due date to February 2016 from August 2015, added
draft-ietf-idr-bgp-model to milestone.

Changed milestone "Progress base BGP specification (RFC 4271) as Full
Standard", set due date to April 2016 from March 2015.

Changed milestone "Solicit work items for scalability improvements",
set due date to April 2016 from July 2015, added
draft-ietf-idr-registered-wide-bgp-communities,
draft-ietf-idr-wide-bgp-communities to milestone.

URL: https://datatracker.ietf.org/wg/idr/charter/


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Hi all: 

 

Flowspec draft authors desired to meet at IETF on Sunday November 1, 2015.
Can we meet at 14:30 to 16:00?   Please send me a note if you would like to
attend and cannot meet at this time at IETF 94. 

 

We'll plan to meet at the registration desk. 

 

Sue 

 


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<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Flowspec draft authors desired to meet at IETF on =
Sunday November 1, 2015.&nbsp; &nbsp;Can we meet at 14:30 to =
16:00?&nbsp;&nbsp; Please send me a note if you would like to attend and =
cannot meet at this time at IETF 94. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>We&#8217;ll =
plan to meet at the registration desk. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sue =
<o:p></o:p></p><p =
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Subject: Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 = Change to 14:30 to 17:30?
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Hi all: 

 

Jeff indicated this time overlaps with the yang editing session.   

 

Would people be able to meet from 16:30 to 17:30?   This will only take 30
minutes out of the Yang editing session. 

 

Sue Hares

 

From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Susan Hares
Sent: Tuesday, October 27, 2015 1:39 PM
To: idr@ietf.org
Cc: 'John G. Scudder'
Subject: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015

 

Hi all: 

 

Flowspec draft authors desired to meet at IETF on Sunday November 1, 2015.
Can we meet at 14:30 to 16:00?   Please send me a note if you would like to
attend and cannot meet at this time at IETF 94. 

 

We'll plan to meet at the registration desk. 

 

Sue 

 


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Hi all: <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Jeff indicated this time =
overlaps with the yang editing session.&nbsp;&nbsp; =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Would people be able to =
meet from 16:30 to 17:30?&nbsp; &nbsp;This will only take 30 minutes out =
of the Yang editing session. <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Sue =
Hares<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Idr [mailto:idr-bounces@ietf.org] <b>On Behalf Of </b>Susan =
Hares<br><b>Sent:</b> Tuesday, October 27, 2015 1:39 PM<br><b>To:</b> =
idr@ietf.org<br><b>Cc:</b> 'John G. Scudder'<br><b>Subject:</b> [Idr] =
14:30 - 16:00 IDR Flowspec meeting on =
11/1/2015<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Hi all: =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Flowspec draft authors desired to meet at IETF on =
Sunday November 1, 2015.&nbsp; &nbsp;Can we meet at 14:30 to =
16:00?&nbsp;&nbsp; Please send me a note if you would like to attend and =
cannot meet at this time at IETF 94. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>We&#8217;ll =
plan to meet at the registration desk. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sue =
<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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Cc: idr wg <idr@ietf.org>, "John G. Scudder" <jgs@bgp.nu>
Subject: Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 = Change to 14:30 to 17:30?
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16:30-17:30 is a much better time .. especially for those staying in other
hotels :)

Thx,
r.

On Tue, Oct 27, 2015 at 7:23 PM, Susan Hares <shares@ndzh.com> wrote:

> Hi all:
>
>
>
> Jeff indicated this time overlaps with the yang editing session.
>
>
>
> Would people be able to meet from 16:30 to 17:30?   This will only take 3=
0
> minutes out of the Yang editing session.
>
>
>
> Sue Hares
>
>
>
> *From:* Idr [mailto:idr-bounces@ietf.org] *On Behalf Of *Susan Hares
> *Sent:* Tuesday, October 27, 2015 1:39 PM
> *To:* idr@ietf.org
> *Cc:* 'John G. Scudder'
> *Subject:* [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015
>
>
>
> Hi all:
>
>
>
> Flowspec draft authors desired to meet at IETF on Sunday November 1,
> 2015.   Can we meet at 14:30 to 16:00?   Please send me a note if you wou=
ld
> like to attend and cannot meet at this time at IETF 94.
>
>
>
> We=E2=80=99ll plan to meet at the registration desk.
>
>
>
> Sue
>
>
>
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr
>
>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">16:30-17:3=
0 is a much better time .. especially for those staying in other hotels :)<=
/div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans=
-serif;font-size:small"><br></div><div class=3D"gmail_default" style=3D"fon=
t-family:arial,helvetica,sans-serif;font-size:small">Thx,</div><div class=
=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-siz=
e:small">r.</div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_q=
uote">On Tue, Oct 27, 2015 at 7:23 PM, Susan Hares <span dir=3D"ltr">&lt;<a=
 href=3D"mailto:shares@ndzh.com" target=3D"_blank">shares@ndzh.com</a>&gt;<=
/span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8=
ex;border-left:1px #ccc solid;padding-left:1ex"><div lang=3D"EN-US" link=3D=
"blue" vlink=3D"purple"><div><p class=3D"MsoNormal"><span style=3D"color:#1=
f497d">Hi all: <u></u><u></u></span></p><p class=3D"MsoNormal"><span style=
=3D"color:#1f497d"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><s=
pan style=3D"color:#1f497d">Jeff indicated this time overlaps with the yang=
 editing session.=C2=A0=C2=A0 <u></u><u></u></span></p><p class=3D"MsoNorma=
l"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></span></p><p class=3D=
"MsoNormal"><span style=3D"color:#1f497d">Would people be able to meet from=
 16:30 to 17:30?=C2=A0 =C2=A0This will only take 30 minutes out of the Yang=
 editing session. <u></u><u></u></span></p><p class=3D"MsoNormal"><span sty=
le=3D"color:#1f497d"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal">=
<span style=3D"color:#1f497d">Sue Hares<u></u><u></u></span></p><p class=3D=
"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></span></p><d=
iv><div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0=
in 0in 0in"><p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-=
family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span sty=
le=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot=
;"> Idr [mailto:<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank">i=
dr-bounces@ietf.org</a>] <b>On Behalf Of </b>Susan Hares<br><b>Sent:</b> Tu=
esday, October 27, 2015 1:39 PM<br><b>To:</b> <a href=3D"mailto:idr@ietf.or=
g" target=3D"_blank">idr@ietf.org</a><br><b>Cc:</b> &#39;John G. Scudder&#3=
9;<br><b>Subject:</b> [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015=
<u></u><u></u></span></p></div></div><p class=3D"MsoNormal"><u></u>=C2=A0<u=
></u></p><p class=3D"MsoNormal">Hi all: <u></u><u></u></p><p class=3D"MsoNo=
rmal"><u></u>=C2=A0<u></u></p><p class=3D"MsoNormal">Flowspec draft authors=
 desired to meet at IETF on Sunday November 1, 2015.=C2=A0 =C2=A0Can we mee=
t at 14:30 to 16:00?=C2=A0=C2=A0 Please send me a note if you would like to=
 attend and cannot meet at this time at IETF 94. <u></u><u></u></p><p class=
=3D"MsoNormal"><u></u>=C2=A0<u></u></p><p class=3D"MsoNormal">We=E2=80=99ll=
 plan to meet at the registration desk. <u></u><u></u></p><p class=3D"MsoNo=
rmal"><u></u>=C2=A0<u></u></p><p class=3D"MsoNormal">Sue <u></u><u></u></p>=
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p></div></div><br>____________=
___________________________________<br>
Idr mailing list<br>
<a href=3D"mailto:Idr@ietf.org">Idr@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" rel=3D"noreferrer" ta=
rget=3D"_blank">https://www.ietf.org/mailman/listinfo/idr</a><br>
<br></blockquote></div><br></div>

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From: "Susan Hares" <shares@ndzh.com>
To: "'VAN DE VELDE, Gunter \(Gunter\)'" <gunter.van_de_velde@alcatel-lucent.com>,  "'Lizhenbin'" <lizhenbin@huawei.com>, <idr@ietf.org>
References: <009b01d10f2e$5cc28820$16479860$@ndzh.com> <5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5C638@nkgeml506-mbx.china.huawei.com> <4D6BC339-51BE-4F90-8858-9B81859858F0@alcatel-lucent.com>
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Cc: jgs@bgp.nu
Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiAgSURSIGludGVyaW0gKDEwLzI2LzIwMTUpIDEwOjAw?= =?utf-8?q?am_-_11=3A30am_ET_update?=
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Gunter:=20

=20

Can you let me know the difference between the Path ID in your proposal =
and Robin=E2=80=99s Forwarding ID that is a generalized segment ID?=20

=20

Sue Hares

=20

From: VAN DE VELDE, Gunter (Gunter) =
[mailto:gunter.van_de_velde@alcatel-lucent.com]=20
Sent: Monday, October 26, 2015 12:26 PM
To: Lizhenbin; Susan Hares; idr@ietf.org
Cc: jgs@bgp.nu
Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update

=20

Hi Robin,

=20

Thanks for your note.

=20

A tunnel is not always going over shortest path. Some tunnels are TE =
tunnels and are deliberately not going over a shortest path. This is =
something that draft-rosen-idr-tunnel-encaps-00 will not help to signal =
because the tunnel-encap attribute indicates tunnel parameters used by =
the tail-end.

=20

If a redirect tunnel represents a particular redirect/steering service =
(better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then =
it does become rather complex for BGP as signalling technology because a =
tunnel relationship is a unique between 'a headend' and =E2=80=98a =
tailed' device. It seems better to leave tunnel-setup to dedicated =
tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.

=20

The draft redirect-to-PATH_ID is providing the means to signal a =
flow-based redirect/steering service, and have each recipient router =
identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable fashion.

=20

Kind Regards,

G/

=20

=20

=20

From:  Idr <idr-bounces@ietf.org> on behalf of Lizhenbin =
<lizhenbin@huawei.com>
Date: Monday 26 October 2015 at 16:51
To: Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
Cc: "jgs@bgp.nu" <jgs@bgp.nu>
Subject: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update

=20

Hi Gunter,

Regarding your presentation, I have following comments:

Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel =
setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic =
to the tunnel instead of signal tunnel setup.=20

I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the =
draft make you confused? We just hope to  just reuses the attributes of =
to specify the tunnel type to help steering=20

the traffic to tunnel. If this is not a good way, maybe we can define =
new attributes.

=20

=20

Best Regards,

Robin

=20

=20

=20

=20

=20

=E5=8F=91=E4=BB=B6=E4=BA=BA: Idr [mailto:idr-bounces@ietf.org] =
=E4=BB=A3=E8=A1=A8 Susan Hares
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: =
2015=E5=B9=B410=E6=9C=8825=E6=97=A5 22:07
=E6=94=B6=E4=BB=B6=E4=BA=BA: idr@ietf.org
=E6=8A=84=E9=80=81: jgs@bgp.nu
=E4=B8=BB=E9=A2=98: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET =
update

=20

IDR WG members:=20

=20

Below is an updated agenda for the IDR interim on 10/26/2015.

=20

Sue=20

=20

------------

IDR interim October 26, 2015=20

10:00 - 11:30am=20

=20

1. Chair's slides [10:00-10:05]

=20

1. draft-litkowski-idr-flowspec-interfaceset-01.txt

   speaker: Stephane Litowski =20

   Time: 10:05-10:15

   =
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/

  =20

2. draft-hao-idr-flowspec-redirect-tunnel-00

   Speaker: Weiguo Hao

   Time: 10:15 - 10:25=20

   =
http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/

  =20

  =20

3. draft-vandevelde-idr-flowspec-path-redirect

   Speaker: Gunter Van De Velde

   Time: 10:25- 10:35

   =
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/

  =20

  =20

4. Draft Name: draft-hao-idr-flowspec-nvo3-02=20

   Speaker: Weiguo Hao

   Duration: 10:35-10:40=20

   http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/

  =20

=20

5. draft-liang-idr-bgp-flowspec-label-01.txt.

   Speaker:=20

   Duration: 10:40-10:45=20

  http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/

  =20

6. draft-liang-idr-bgp-flowspec-time

   presenter: Jianjie You

   time: 10:45-10:55

   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/

=20

7. Draft Name: draft-li-idr-mpls-path-programming-02

   Speaker: Zhenbin Li

   Duration: 10:55-11:05=20

   http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/

=20

7. Draft Name: draft-li-idr-flowspec-rpd-01

   Speaker: Shunwan Zhuang

   Duration: 11:05 - 11:15=20

   http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/

  =20

8.  Discussion of Flowspec drafts

    11:15 - 11:30am=20

=20

 Meeting Web-ex information=20

 Monday, October 26, 2015=20

10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs=20

=20

webex infor:=20

https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f

=20

Meeting number:            644 964 970=20

Meeting password:         flow.in.nets

=20

=20

Join by phone

1-877-668-4493 Call-in toll free number (US/Canada)

1-650-479-3208 Call-in toll number (US/Canada)

Access code: 644 964 970

=20

=20


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<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
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<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Gunter: <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Can you let me know the =
difference between the Path ID in your proposal and Robin=E2=80=99s =
Forwarding ID that is a generalized segment ID? <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Sue =
Hares<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
VAN DE VELDE, Gunter (Gunter) =
[mailto:gunter.van_de_velde@alcatel-lucent.com] <br><b>Sent:</b> Monday, =
October 26, 2015 12:26 PM<br><b>To:</b> Lizhenbin; Susan Hares; =
idr@ietf.org<br><b>Cc:</b> jgs@bgp.nu<br><b>Subject:</b> Re: [Idr] =
Regarding draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D'font-size:10.0pt;font-family:"MS UI =
Gothic","sans-serif"'>=E7=AD=94=E5=A4=8D</span><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>: IDR =
interim (10/26/2015) 10:00am - 11:30am ET =
update<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div><p =
class=3DMsoNormal><span style=3D'font-size:10.5pt;color:black'>Hi =
Robin,<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div>=
<div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'>Thanks for your =
note.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div>=
<div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;color:black'>A =
tunnel is not always going over shortest path. Some tunnels are TE =
tunnels and are deliberately not going over a shortest path. This is =
something that&nbsp;</span><span =
style=3D'font-size:10.5pt;color:#1F497D'>draft-rosen-idr-tunnel-encaps-00=
&nbsp;</span><span style=3D'font-size:10.5pt;color:black'>will not help =
to signal because the tunnel-encap attribute indicates tunnel parameters =
used by the tail-end.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div>=
<div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'>If a redirect tunnel represents a =
particular redirect/steering service (better delay, less packet loss, =
non-SRLG, more BW, etc=E2=80=A6) then it does become rather complex for =
BGP as signalling technology because a tunnel relationship is a unique =
between 'a headend' and =E2=80=98a tailed' device. It seems better to =
leave tunnel-setup to dedicated tunnel-setup mechanisms like PCEP, SR, =
etc=E2=80=A6.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div>=
<div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'>The draft redirect-to-PATH_ID is =
providing the means to signal a flow-based redirect/steering service, =
and have each recipient router identify using local recursion for the =
PATH_IDs the corresponding tunnels/redirect-info. This allows for tunnel =
setup complexity to be taken away from BGP, while at the same time BGP =
is doing what it is very good at doing: &quot;It signals a =
policy=E2=80=9D in reliable =
fashion.<o:p></o:p></span></p></div></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div>=
<div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'>Kind =
Regards,<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'>G/<o:p></o:p></span></p></div><div=
><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div>=
<div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div>=
<div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div>=
<div style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt =
0in 0in 0in'><p class=3DMsoNormal><b><span =
style=3D'color:black'>From:&nbsp;</span></b><span style=3D'color:black'> =
Idr &lt;<a =
href=3D"mailto:idr-bounces@ietf.org">idr-bounces@ietf.org</a>&gt; on =
behalf of Lizhenbin &lt;<a =
href=3D"mailto:lizhenbin@huawei.com">lizhenbin@huawei.com</a>&gt;<br><b>D=
ate: </b>Monday 26 October 2015 at 16:51<br><b>To: </b>Susan Hares =
&lt;<a href=3D"mailto:shares@ndzh.com">shares@ndzh.com</a>&gt;, &quot;<a =
href=3D"mailto:idr@ietf.org">idr@ietf.org</a>&quot; &lt;<a =
href=3D"mailto:idr@ietf.org">idr@ietf.org</a>&gt;<br><b>Cc: </b>&quot;<a =
href=3D"mailto:jgs@bgp.nu">jgs@bgp.nu</a>&quot; &lt;<a =
href=3D"mailto:jgs@bgp.nu">jgs@bgp.nu</a>&gt;<br><b>Subject: </b>[Idr] =
Regarding draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D'font-family:"MS =
Gothic";color:black'>=E7=AD=94=E5=A4=8D</span><span =
style=3D'color:black'>: IDR interim (10/26/2015) 10:00am - 11:30am ET =
update</span><span =
style=3D'font-size:12.0pt;color:black'><o:p></o:p></span></p></div><div><=
p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div>=
<div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>Hi =
Gunter,</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>Regar=
ding your presentation, I have following comments:</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>Do =
you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel =
setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic =
to the tunnel instead of signal tunnel setup. </span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>I am =
not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the draft =
make you confused? We just hope to &nbsp;just reuses the attributes of =
to specify the tunnel type to help steering </span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>the =
traffic to tunnel. If this is not a good way, maybe we can define new =
attributes.</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>Best =
Regards,</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>Robin=
</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p=
 class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p><d=
iv><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal><b><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;color:black;mso-fareast-lang=
uage:ZH-CN'>=E5=8F=91=E4=BB=B6=E4=BA=BA</span></b><b><span =
style=3D'font-size:10.0pt;font-family:SimSun;color:black;mso-fareast-lang=
uage:ZH-CN'>:</span></b><span =
style=3D'font-size:10.0pt;font-family:SimSun;color:black;mso-fareast-lang=
uage:ZH-CN'> Idr [<a =
href=3D"mailto:idr-bounces@ietf.org">mailto:idr-bounces@ietf.org</a>] =
<b><span lang=3DZH-CN>=E4=BB=A3=E8=A1=A8 </span></b>Susan =
Hares<br><b><span =
lang=3DZH-CN>=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4</span>:</b> 2015<span =
lang=3DZH-CN>=E5=B9=B4</span>10<span =
lang=3DZH-CN>=E6=9C=88</span>25<span lang=3DZH-CN>=E6=97=A5</span> =
22:07<br><b><span lang=3DZH-CN>=E6=94=B6=E4=BB=B6=E4=BA=BA</span>:</b> =
<a href=3D"mailto:idr@ietf.org">idr@ietf.org</a><br><b><span =
lang=3DZH-CN>=E6=8A=84=E9=80=81</span>:</b> <a =
href=3D"mailto:jgs@bgp.nu">jgs@bgp.nu</a><br><b><span =
lang=3DZH-CN>=E4=B8=BB=E9=A2=98</span>:</b> [Idr] IDR interim =
(10/26/2015) 10:00am - 11:30am ET update</span><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><o:p></o:p></span></p></=
div></div><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>IDR WG members: =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>Below is an updated =
agenda for the IDR interim on 10/26/2015.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>Sue =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>------------<o:p></o:p><=
/span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>IDR interim October 26, =
2015 <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>10:00 - 11:30am =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>1. Chair's slides =
[10:00-10:05]<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>1. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; speaker: =
Stephane Litowski&nbsp; <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp;&nbsp;Time: =
10:05-10:15<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; <a =
href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-int=
erfaceset/">https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec=
-interfaceset/</a><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>2. =
draft-hao-idr-flowspec-redirect-tunnel-00<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; Speaker: =
Weiguo Hao<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; Time: =
10:15 - 10:25 <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-t=
unnel/">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-t=
unnel/</a><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp;&nbsp;<o:p><=
/o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>3. =
draft-vandevelde-idr-flowspec-path-redirect<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; Speaker: =
Gunter Van De Velde<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; Time: =
10:25- 10:35<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; <a =
href=3D"http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-pat=
h-redirect/">http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspe=
c-path-redirect/</a><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp;&nbsp;<o:p><=
/o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>4. Draft Name: =
draft-hao-idr-flowspec-nvo3-02 <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp;&nbsp;Speake=
r: Weiguo Hao<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; Duration: =
10:35-10:40 <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/">htt=
p://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a><o:p></o:p><=
/span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>5. =
draft-liang-idr-bgp-flowspec-label-01.txt.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; Speaker: =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp;&nbsp;Durati=
on: 10:40-10:45 <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-labe=
l/">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/</=
a><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>6. =
draft-liang-idr-bgp-flowspec-time<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; presenter: =
Jianjie You<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; time: =
10:45-10:55<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; <a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time=
/">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/</a>=
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>7. Draft Name: =
draft-li-idr-mpls-path-programming-02<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; Speaker: =
Zhenbin Li<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; Duration: =
10:55-11:05 <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programmin=
g/">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/</=
a><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>7. Draft Name: =
draft-li-idr-flowspec-rpd-01<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; Speaker: =
Shunwan Zhuang<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; Duration: =
11:05 - 11:15 <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/">http:=
//datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/</a><o:p></o:p></spa=
n></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>8.&nbsp; Discussion of =
Flowspec drafts<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;&nbsp;&nbsp; =
11:15 - 11:30am <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;Meeting Web-ex =
information <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;Monday, October =
26, 2015 <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>10:00 am&nbsp; |&nbsp; =
Eastern Daylight Time (New York, GMT-04:00)&nbsp; |&nbsp; 2 hrs =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
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</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>webex infor: =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'><a =
href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599=
c3ff3143f">https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e=
599c3ff3143f</a><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>Meeting number: =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 964 970 =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>Meeting =
password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
flow.in.nets<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>Join by =
phone<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>1-877-668-4493 Call-in =
toll free number (US/Canada)<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>1-650-479-3208 Call-in =
toll number (US/Canada)<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>Access code: 644 964 =
970<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:black;mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span>=
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------=_NextPart_000_0422_01D110C3.BC92A7D0--


From nobody Tue Oct 27 13:12:42 2015
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From: Gunter Van De Velde <guntervandeveldecc@icloud.com>
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Date: Tue, 27 Oct 2015 21:12:29 +0100
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References: <009b01d10f2e$5cc28820$16479860$@ndzh.com> <5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5C638@nkgeml506-mbx.china.huawei.com> <4D6BC339-51BE-4F90-8858-9B81859858F0@alcatel-lucent.com> <042101d110e5$439e2d50$cada87f0$@ndzh.com>
To: Susan Hares <shares@ndzh.com>
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Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiAgSURSIGludGVyaW0gKDEwLzI2LzIwMTUpIDEwOjAw?= =?utf-8?q?am_-_11=3A30am_ET_update?=
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Hi Sue,

Would you know where to find Forwarding ID described in =
draft-hao-idr-flowspec-redirect-tunnel to make assessment?=20
There is no mentioning of this concept at all in the document? =
Alternatively, what i found is signalling of tunnel end-point =
(IPv4/IPv6) and=20
some tunnel setup information (tunnel encap attribute and a new MPP TE =
tunnel attribute).

Brgds,
G/






> On 27 Oct 2015, at 19:28, Susan Hares <shares@ndzh.com> wrote:
>=20
> Gunter:
> =20
> Can you let me know the difference between the Path ID in your =
proposal and Robin=E2=80=99s Forwarding ID that is a generalized segment =
ID?
> =20
> Sue Hares
> =20
> From: VAN DE VELDE, Gunter (Gunter) =
[mailto:gunter.van_de_velde@alcatel-lucent.com]=20
> Sent: Monday, October 26, 2015 12:26 PM
> To: Lizhenbin; Susan Hares; idr@ietf.org
> Cc: jgs@bgp.nu
> Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
> =20
> Hi Robin,
> =20
> Thanks for your note.
> =20
> A tunnel is not always going over shortest path. Some tunnels are TE =
tunnels and are deliberately not going over a shortest path. This is =
something that draft-rosen-idr-tunnel-encaps-00 will not help to signal =
because the tunnel-encap attribute indicates tunnel parameters used by =
the tail-end.
> =20
> If a redirect tunnel represents a particular redirect/steering service =
(better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then =
it does become rather complex for BGP as signalling technology because a =
tunnel relationship is a unique between 'a headend' and =E2=80=98a =
tailed' device. It seems better to leave tunnel-setup to dedicated =
tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.
> =20
> The draft redirect-to-PATH_ID is providing the means to signal a =
flow-based redirect/steering service, and have each recipient router =
identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable fashion.
> =20
> Kind Regards,
> G/
> =20
> =20
> =20
> From:  Idr <idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>> on =
behalf of Lizhenbin <lizhenbin@huawei.com <mailto:lizhenbin@huawei.com>>
> Date: Monday 26 October 2015 at 16:51
> To: Susan Hares <shares@ndzh.com <mailto:shares@ndzh.com>>, =
"idr@ietf.org <mailto:idr@ietf.org>" <idr@ietf.org =
<mailto:idr@ietf.org>>
> Cc: "jgs@bgp.nu <mailto:jgs@bgp.nu>" <jgs@bgp.nu <mailto:jgs@bgp.nu>>
> Subject: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
> =20
> Hi Gunter,
> Regarding your presentation, I have following comments:
> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel =
setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic =
to the tunnel instead of signal tunnel setup.
> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the =
draft make you confused? We just hope to  just reuses the attributes of =
to specify the tunnel type to help steering
> the traffic to tunnel. If this is not a good way, maybe we can define =
new attributes.
> =20
> =20
> Best Regards,
> Robin
> =20
> =20
> =20
> =20
> =20
> =E5=8F=91=E4=BB=B6=E4=BA=BA: Idr [mailto:idr-bounces@ietf.org =
<mailto:idr-bounces@ietf.org>] =E4=BB=A3=E8=A1=A8 Susan Hares
> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8825=E6=97=A5=
 22:07
> =E6=94=B6=E4=BB=B6=E4=BA=BA: idr@ietf.org <mailto:idr@ietf.org>
> =E6=8A=84=E9=80=81: jgs@bgp.nu <mailto:jgs@bgp.nu>
> =E4=B8=BB=E9=A2=98: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am =
ET update
> =20
> IDR WG members:
> =20
> Below is an updated agenda for the IDR interim on 10/26/2015.
> =20
> Sue
> =20
> ------------
> IDR interim October 26, 2015
> 10:00 - 11:30am
> =20
> 1. Chair's slides [10:00-10:05]
> =20
> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>    speaker: Stephane Litowski=20
>    Time: 10:05-10:15
>    =
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset=
/ =
<https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/>
>  =20
> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>    Speaker: Weiguo Hao
>    Time: 10:15 - 10:25
>    =
http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/>
>  =20
>   =20
> 3. draft-vandevelde-idr-flowspec-path-redirect
>    Speaker: Gunter Van De Velde
>    Time: 10:25- 10:35
>    =
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirec=
t/ =
<http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/>
>  =20
>   =20
> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02
>    Speaker: Weiguo Hao
>    Duration: 10:35-10:40
>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/>
>  =20
> =20
> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>    Speaker:
>    Duration: 10:40-10:45
>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/>
>  =20
> 6. draft-liang-idr-bgp-flowspec-time
>    presenter: Jianjie You
>    time: 10:45-10:55
>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/>
> =20
> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>    Speaker: Zhenbin Li
>    Duration: 10:55-11:05
>    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/ =
<http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/>
> =20
> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>    Speaker: Shunwan Zhuang
>    Duration: 11:05 - 11:15
>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/ =
<http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/>
>  =20
> 8.  Discussion of Flowspec drafts
>     11:15 - 11:30am
> =20
>  Meeting Web-ex information
>  Monday, October 26, 2015
> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs
> =20
> webex infor:
> =
https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f=
 =
<https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f>
> =20
> Meeting number:            644 964 970
> Meeting password:         flow.in.nets
> =20
> =20
> Join by phone
> 1-877-668-4493 Call-in toll free number (US/Canada)
> 1-650-479-3208 Call-in toll number (US/Canada)
> Access code: 644 964 970
> =20
> =20
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr


--Apple-Mail=_C9046BEF-1025-4B16-88CC-8377CD351B86
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><div class=3D"">Hi Sue,</div><div class=3D""><br =
class=3D""></div><div class=3D""><span style=3D"font-size: 14px;" =
class=3D""><font face=3D"Times" class=3D"">Would you know where to find =
Forwarding ID described in&nbsp;<span style=3D"background-color: =
rgb(255, 255, 255);" =
class=3D"">draft-hao-idr-flowspec-redirect-tunnel&nbsp;to =
make&nbsp;assessment?&nbsp;</span></font></span></div><div =
class=3D""><span style=3D"font-size: 14px;" class=3D""><font =
face=3D"Times" class=3D""><span style=3D"background-color: rgb(255, 255, =
255);" class=3D"">There&nbsp;is no mentioning of this concept at all in =
the document?&nbsp;</span>Alternatively, what i found is signalling of =
tunnel end-point (IPv4/IPv6) and&nbsp;</font></span></div><div =
class=3D""><span style=3D"font-size: 14px;" class=3D""><font =
face=3D"Times" class=3D"">some tunnel setup information (tunnel encap =
attribute and a new MPP TE tunnel attribute).</font></span></div><div =
class=3D""><br class=3D""></div><div class=3D"">Brgds,</div><div =
class=3D"">G/</div><div class=3D""><br class=3D""></div><div =
class=3D""><br class=3D""></div><div class=3D""><br class=3D""></div><div =
class=3D""><br class=3D""></div><div class=3D""><br class=3D""></div><br =
class=3D""><div><blockquote type=3D"cite" class=3D""><div class=3D"">On =
27 Oct 2015, at 19:28, Susan Hares &lt;<a href=3D"mailto:shares@ndzh.com" =
class=3D"">shares@ndzh.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><meta =
http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8" =
class=3D""><meta name=3D"Generator" content=3D"Microsoft Word 14 =
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<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
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<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--><div lang=3D"EN-US" link=3D"blue" =
vlink=3D"purple" class=3D""><div class=3D"WordSection1"><div =
class=3D"MsoNormal"><span style=3D"color:#1F497D" class=3D"">Gunter: =
<o:p class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"color:#1F497D" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"color:#1F497D" class=3D"">Can you let me know the difference =
between the Path ID in your proposal and Robin=E2=80=99s Forwarding ID =
that is a generalized segment ID? <o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"color:#1F497D" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"color:#1F497D" class=3D"">Sue Hares<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"color:#1F497D" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div class=3D""><div =
style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in" class=3D""><div class=3D"MsoNormal"><b class=3D""><span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D"">From:</span></b><span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D""> VAN DE VELDE, Gunter (Gunter) [<a =
href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" =
class=3D"">mailto:gunter.van_de_velde@alcatel-lucent.com</a>] <br =
class=3D""><b class=3D"">Sent:</b> Monday, October 26, 2015 12:26 PM<br =
class=3D""><b class=3D"">To:</b> Lizhenbin; Susan Hares; <a =
href=3D"mailto:idr@ietf.org" class=3D"">idr@ietf.org</a><br class=3D""><b =
class=3D"">Cc:</b> <a href=3D"mailto:jgs@bgp.nu" =
class=3D"">jgs@bgp.nu</a><br class=3D""><b class=3D"">Subject:</b> Re: =
[Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D"font-size:10.0pt;font-family:&quot;MS UI =
Gothic&quot;,&quot;sans-serif&quot;" class=3D"">=E7=AD=94=E5=A4=8D</span><=
span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D"">: IDR interim (10/26/2015) 10:00am - 11:30am ET =
update<o:p class=3D""></o:p></span></div></div></div><div =
class=3D"MsoNormal"><o:p class=3D"">&nbsp;</o:p></div><div class=3D""><div=
 class=3D""><div class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" =
class=3D"">Hi Robin,<o:p class=3D""></o:p></span></div></div><div =
class=3D""><div class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></span></div></div><div =
class=3D""><div class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" =
class=3D"">Thanks for your note.<o:p =
class=3D""></o:p></span></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D"">A =
tunnel is not always going over shortest path. Some tunnels are TE =
tunnels and are deliberately not going over a shortest path. This is =
something that&nbsp;</span><span style=3D"font-size:10.5pt;color:#1F497D" =
class=3D"">draft-rosen-idr-tunnel-encaps-00&nbsp;</span><span =
style=3D"font-size: 10.5pt;" class=3D"">will not help to signal because =
the tunnel-encap attribute indicates tunnel parameters used by the =
tail-end.<o:p class=3D""></o:p></span></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D"">If a =
redirect tunnel represents a particular redirect/steering service =
(better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then =
it does become rather complex for BGP as signalling technology because a =
tunnel relationship is a unique between 'a headend' and =E2=80=98a =
tailed' device. It seems better to leave tunnel-setup to dedicated =
tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.<o:p =
class=3D""></o:p></span></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D"">The =
draft redirect-to-PATH_ID is providing the means to signal a flow-based =
redirect/steering service, and have each recipient router identify using =
local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable fashion.<o:p =
class=3D""></o:p></span></div></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D"">Kind =
Regards,<o:p class=3D""></o:p></span></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D"">G/<o:p =
class=3D""></o:p></span></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div></div><div =
style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in" class=3D""><div class=3D"MsoNormal"><b class=3D""><span =
style=3D"" class=3D"">From:&nbsp;</span></b><span style=3D"" class=3D""> =
Idr &lt;<a href=3D"mailto:idr-bounces@ietf.org" =
class=3D"">idr-bounces@ietf.org</a>&gt; on behalf of Lizhenbin &lt;<a =
href=3D"mailto:lizhenbin@huawei.com" =
class=3D"">lizhenbin@huawei.com</a>&gt;<br class=3D""><b class=3D"">Date: =
</b>Monday 26 October 2015 at 16:51<br class=3D""><b class=3D"">To: =
</b>Susan Hares &lt;<a href=3D"mailto:shares@ndzh.com" =
class=3D"">shares@ndzh.com</a>&gt;, "<a href=3D"mailto:idr@ietf.org" =
class=3D"">idr@ietf.org</a>" &lt;<a href=3D"mailto:idr@ietf.org" =
class=3D"">idr@ietf.org</a>&gt;<br class=3D""><b class=3D"">Cc: </b>"<a =
href=3D"mailto:jgs@bgp.nu" class=3D"">jgs@bgp.nu</a>" &lt;<a =
href=3D"mailto:jgs@bgp.nu" class=3D"">jgs@bgp.nu</a>&gt;<br class=3D""><b =
class=3D"">Subject: </b>[Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D"font-family: 'MS Gothic';" class=3D"">=E7=AD=94=E5=A4=8D</span><s=
pan style=3D"" class=3D"">: IDR interim (10/26/2015) 10:00am - 11:30am =
ET update</span><span style=3D"font-size: 12pt;" class=3D""><o:p =
class=3D""></o:p></span></div></div><div class=3D""><div =
class=3D"MsoNormal"><span style=3D"font-size: 10.5pt;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div></div><div class=3D""><div =
class=3D""><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">Hi Gunter,</span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">Regarding your presentation, I have following =
comments:</span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">Do you mean draft-hao-idr-flowspec-redirect-tunnel is to =
signal tunnel setup info? draft-hao-idr-flowspec-redirect-tunnel is to =
steer traffic to the tunnel instead of signal tunnel setup. </span><span =
style=3D"" class=3D""><o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">I am not sure if the reuse of =
draft-rosen-idr-tunnel-encaps-00 in the draft make you confused? We just =
hope to &nbsp;just reuses the attributes of to specify the tunnel type =
to help steering </span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">the traffic to tunnel. If this is not a good way, maybe we =
can define new attributes.</span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">&nbsp;</span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">&nbsp;</span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">Best Regards,</span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">Robin</span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">&nbsp;</span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">&nbsp;</span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">&nbsp;</span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">&nbsp;</span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN" =
class=3D"">&nbsp;</span><span style=3D"" class=3D""><o:p =
class=3D""></o:p></span></div><div class=3D""><div =
style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in" class=3D""><div class=3D"MsoNormal"><b class=3D""><span =
lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">=E5=8F=91=E4=BB=B6=E4=BA=BA</span></b><b class=3D""><span =
style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">:</span></b><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""> Idr [<a href=3D"mailto:idr-bounces@ietf.org" =
class=3D"">mailto:idr-bounces@ietf.org</a>] <b class=3D""><span =
lang=3D"ZH-CN" class=3D"">=E4=BB=A3=E8=A1=A8 </span></b>Susan Hares<br =
class=3D""><b class=3D""><span lang=3D"ZH-CN" =
class=3D"">=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4</span>:</b> 2015<span =
lang=3D"ZH-CN" class=3D"">=E5=B9=B4</span>10<span lang=3D"ZH-CN" =
class=3D"">=E6=9C=88</span>25<span lang=3D"ZH-CN" class=3D"">=E6=97=A5</sp=
an> 22:07<br class=3D""><b class=3D""><span lang=3D"ZH-CN" =
class=3D"">=E6=94=B6=E4=BB=B6=E4=BA=BA</span>:</b> <a =
href=3D"mailto:idr@ietf.org" class=3D"">idr@ietf.org</a><br class=3D""><b =
class=3D""><span lang=3D"ZH-CN" class=3D"">=E6=8A=84=E9=80=81</span>:</b> =
<a href=3D"mailto:jgs@bgp.nu" class=3D"">jgs@bgp.nu</a><br class=3D""><b =
class=3D""><span lang=3D"ZH-CN" class=3D"">=E4=B8=BB=E9=A2=98</span>:</b> =
[Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET update</span><span =
style=3D"" class=3D""><o:p class=3D""></o:p></span></div></div></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">IDR WG members: <o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">Below is an updated agenda for the IDR interim on =
10/26/2015.<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">Sue <o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">------------<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">IDR interim October 26, =
2015 <o:p class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"" class=3D"">10:00 - 11:30am <o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">1. Chair's slides =
[10:00-10:05]<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">1. draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp; speaker: Stephane Litowski&nbsp; <o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp;&nbsp;Time: 10:05-10:15<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp; <a =
href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-inte=
rfaceset/" =
class=3D"">https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-i=
nterfaceset/</a><o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp; <o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">2. draft-hao-idr-flowspec-redirect-tunnel-00<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp; Speaker: Weiguo Hao<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp; Time: 10:15 - 10:25 <o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tu=
nnel/" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect=
-tunnel/</a><o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp; <o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp;&nbsp;<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">3. =
draft-vandevelde-idr-flowspec-path-redirect<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp; Speaker: Gunter Van De Velde<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp; Time: 10:25- 10:35<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp; <a =
href=3D"http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path=
-redirect/" =
class=3D"">http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-p=
ath-redirect/</a><o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp; <o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp;&nbsp;<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">4. Draft Name: =
draft-hao-idr-flowspec-nvo3-02 <o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp;&nbsp;Speaker:=
 Weiguo Hao<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp; Duration: =
10:35-10:40 <o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a=
><o:p class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"" class=3D"">&nbsp;&nbsp; <o:p class=3D""></o:p></span></div><div=
 class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">5. draft-liang-idr-bgp-flowspec-label-01.txt.<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp; Speaker: <o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp;&nbsp;Duration: 10:40-10:45 <o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label=
/" =
class=3D"">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-la=
bel/</a><o:p class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"" class=3D"">&nbsp;&nbsp; <o:p class=3D""></o:p></span></div><div=
 class=3D"MsoNormal"><span style=3D"" class=3D"">6. =
draft-liang-idr-bgp-flowspec-time<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp; presenter: =
Jianjie You<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp; time: =
10:45-10:55<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp; <a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/=
" =
class=3D"">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-ti=
me/</a><o:p class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"" class=3D"">&nbsp;<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">7. Draft Name: =
draft-li-idr-mpls-path-programming-02<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp; Speaker: Zhenbin Li<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp; Duration: 10:55-11:05 <o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming=
/" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</a><o:p class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"" class=3D"">&nbsp;<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">7. Draft Name: =
draft-li-idr-flowspec-rpd-01<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp; Speaker: =
Shunwan Zhuang<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp; Duration: =
11:05 - 11:15 <o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/</a><=
o:p class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"" class=3D"">&nbsp;&nbsp; <o:p class=3D""></o:p></span></div><div=
 class=3D"MsoNormal"><span style=3D"" class=3D"">8.&nbsp; Discussion of =
Flowspec drafts<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;&nbsp;&nbsp; 11:15 =
- 11:30am <o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;Meeting Web-ex information <o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;Monday, October 26, 2015 <o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">10:00 am&nbsp; |&nbsp; Eastern Daylight Time (New York, =
GMT-04:00)&nbsp; |&nbsp; 2 hrs <o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">webex infor: <o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D""><a =
href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c=
3ff3143f" =
class=3D"">https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e5=
99c3ff3143f</a><o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">Meeting number: =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 964 970 =
<o:p class=3D""></o:p></span></div><div class=3D"MsoNormal"><span =
style=3D"" class=3D"">Meeting =
password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
flow.in.nets<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;<o:p class=3D""></o:p></span></div><div =
class=3D"MsoNormal"><span style=3D"" class=3D"">Join by phone<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">1-877-668-4493 Call-in toll free number (US/Canada)<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">1-650-479-3208 Call-in toll number (US/Canada)<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">Access code: 644 964 970<o:p class=3D""></o:p></span></div><div=
 class=3D"MsoNormal"><span style=3D"" class=3D"">&nbsp;<o:p =
class=3D""></o:p></span></div><div class=3D"MsoNormal"><span style=3D"" =
class=3D"">&nbsp;<o:p =
class=3D""></o:p></span></div></div></div></div></div>____________________=
___________________________<br class=3D"">Idr mailing list<br =
class=3D""><a href=3D"mailto:Idr@ietf.org" class=3D"">Idr@ietf.org</a><br =
class=3D"">https://www.ietf.org/mailman/listinfo/idr<br =
class=3D""></div></blockquote></div><br class=3D""></body></html>=

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From: "UTTARO, JAMES" <ju1738@att.com>
To: Robert Raszuk <robert@raszuk.net>, Susan Hares <shares@ndzh.com>
Thread-Topic: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 = Change to 14:30 to 17:30?
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Cc: idr wg <idr@ietf.org>, "John G. Scudder" <jgs@bgp.nu>
Subject: Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 = Change to 14:30 to 17:30?
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Gunter:=20

=20

Robin=E2=80=99s proposal is =
http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/

=20

See my attached comparison from the interim.  You can also download =
Robin=E2=80=99s slides from the interim.  =20

=20

Sue=20

=20

From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Gunter Van De Velde
Sent: Tuesday, October 27, 2015 4:12 PM
To: Susan Hares
Cc: idr wg; jgs@bgp.nu
Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update

=20

Hi Sue,

=20

Would you know where to find Forwarding ID described in =
draft-hao-idr-flowspec-redirect-tunnel to make assessment?=20

There is no mentioning of this concept at all in the document? =
Alternatively, what i found is signalling of tunnel end-point =
(IPv4/IPv6) and=20

some tunnel setup information (tunnel encap attribute and a new MPP TE =
tunnel attribute).

=20

Brgds,

G/

=20

=20

=20

=20

=20

=20

On 27 Oct 2015, at 19:28, Susan Hares <shares@ndzh.com> wrote:

=20

Gunter:=20

=20

Can you let me know the difference between the Path ID in your proposal =
and Robin=E2=80=99s Forwarding ID that is a generalized segment ID?=20

=20

Sue Hares

=20

From: VAN DE VELDE, Gunter (Gunter) =
[mailto:gunter.van_de_velde@alcatel-lucent.com]=20
Sent: Monday, October 26, 2015 12:26 PM
To: Lizhenbin; Susan Hares; idr@ietf.org
Cc: jgs@bgp.nu
Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update

=20

Hi Robin,

=20

Thanks for your note.

=20

A tunnel is not always going over shortest path. Some tunnels are TE =
tunnels and are deliberately not going over a shortest path. This is =
something that draft-rosen-idr-tunnel-encaps-00 will not help to signal =
because the tunnel-encap attribute indicates tunnel parameters used by =
the tail-end.

=20

If a redirect tunnel represents a particular redirect/steering service =
(better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then =
it does become rather complex for BGP as signalling technology because a =
tunnel relationship is a unique between 'a headend' and =E2=80=98a =
tailed' device. It seems better to leave tunnel-setup to dedicated =
tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.

=20

The draft redirect-to-PATH_ID is providing the means to signal a =
flow-based redirect/steering service, and have each recipient router =
identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable fashion.

=20

Kind Regards,

G/

=20

=20

=20

From:  Idr <idr-bounces@ietf.org> on behalf of Lizhenbin =
<lizhenbin@huawei.com>
Date: Monday 26 October 2015 at 16:51
To: Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
Cc: "jgs@bgp.nu" <jgs@bgp.nu>
Subject: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update

=20

Hi Gunter,

Regarding your presentation, I have following comments:

Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel =
setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic =
to the tunnel instead of signal tunnel setup.=20

I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the =
draft make you confused? We just hope to  just reuses the attributes of =
to specify the tunnel type to help steering=20

the traffic to tunnel. If this is not a good way, maybe we can define =
new attributes.

=20

=20

Best Regards,

Robin

=20

=20

=20

=20

=20

=E5=8F=91=E4=BB=B6=E4=BA=BA: Idr [mailto:idr-bounces@ietf.org] =
=E4=BB=A3=E8=A1=A8 Susan Hares
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: =
2015=E5=B9=B410=E6=9C=8825=E6=97=A5 22:07
=E6=94=B6=E4=BB=B6=E4=BA=BA: idr@ietf.org
=E6=8A=84=E9=80=81: jgs@bgp.nu
=E4=B8=BB=E9=A2=98: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET =
update

=20

IDR WG members:=20

=20

Below is an updated agenda for the IDR interim on 10/26/2015.

=20

Sue=20

=20

------------

IDR interim October 26, 2015=20

10:00 - 11:30am=20

=20

1. Chair's slides [10:00-10:05]

=20

1. draft-litkowski-idr-flowspec-interfaceset-01.txt

   speaker: Stephane Litowski =20

   Time: 10:05-10:15

   =
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/

  =20

2. draft-hao-idr-flowspec-redirect-tunnel-00

   Speaker: Weiguo Hao

   Time: 10:15 - 10:25=20

   =
http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/

  =20

  =20

3. draft-vandevelde-idr-flowspec-path-redirect

   Speaker: Gunter Van De Velde

   Time: 10:25- 10:35

   =
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/

  =20

  =20

4. Draft Name: draft-hao-idr-flowspec-nvo3-02=20

   Speaker: Weiguo Hao

   Duration: 10:35-10:40=20

   http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/

  =20

=20

5. draft-liang-idr-bgp-flowspec-label-01.txt.

   Speaker:=20

   Duration: 10:40-10:45=20

  http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/

  =20

6. draft-liang-idr-bgp-flowspec-time

   presenter: Jianjie You

   time: 10:45-10:55

   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/

=20

7. Draft Name: draft-li-idr-mpls-path-programming-02

   Speaker: Zhenbin Li

   Duration: 10:55-11:05=20

   http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/

=20

7. Draft Name: draft-li-idr-flowspec-rpd-01

   Speaker: Shunwan Zhuang

   Duration: 11:05 - 11:15=20

   http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/

  =20

8.  Discussion of Flowspec drafts

    11:15 - 11:30am=20

=20

 Meeting Web-ex information=20

 Monday, October 26, 2015=20

10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs=20

=20

webex infor:=20

https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f

=20

Meeting number:            644 964 970=20

Meeting password:         flow.in.nets

=20

=20

Join by phone

1-877-668-4493 Call-in toll free number (US/Canada)

1-650-479-3208 Call-in toll number (US/Canada)

Access code: 644 964 970

=20

=20

_______________________________________________
Idr mailing list
Idr@ietf.org
https://www.ietf.org/mailman/listinfo/idr

=20


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Gunter: <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Robin=E2=80=99s proposal =
is <a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programmin=
g/">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/</=
a><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>See my attached =
comparison from the interim.=C2=A0 You can also download Robin=E2=80=99s =
slides from the interim.=C2=A0 =C2=A0<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Sue =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Idr [mailto:idr-bounces@ietf.org] <b>On Behalf Of </b>Gunter Van De =
Velde<br><b>Sent:</b> Tuesday, October 27, 2015 4:12 PM<br><b>To:</b> =
Susan Hares<br><b>Cc:</b> idr wg; jgs@bgp.nu<br><b>Subject:</b> Re: =
[Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D'font-size:10.0pt;font-family:"MS UI =
Gothic","sans-serif"'>=E7=AD=94=E5=A4=8D</span><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>: IDR =
interim (10/26/2015) 10:00am - 11:30am ET =
update<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal>Hi =
Sue,<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Times","serif"'>Would you know =
where to find Forwarding ID described in&nbsp;<span =
style=3D'background:white'>draft-hao-idr-flowspec-redirect-tunnel&nbsp;to=
 make&nbsp;assessment?&nbsp;</span></span><o:p></o:p></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Times","serif";background:white'>T=
here&nbsp;is no mentioning of this concept at all in the =
document?&nbsp;</span><span =
style=3D'font-size:10.5pt;font-family:"Times","serif"'>Alternatively, =
what i found is signalling of tunnel end-point (IPv4/IPv6) =
and&nbsp;</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Times","serif"'>some tunnel setup =
information (tunnel encap attribute and a new MPP TE tunnel =
attribute).</span><o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Brgds,<o:p></o:p></p></div><div><p =
class=3DMsoNormal>G/<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p =
class=3DMsoNormal>On 27 Oct 2015, at 19:28, Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com">shares@ndzh.com</a>&gt; =
wrote:<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div><div><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Gunter: =
</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></p></div><div><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Can you let me know the =
difference between the Path ID in your proposal and Robin=E2=80=99s =
Forwarding ID that is a generalized segment ID? =
</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></p></div><div><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Sue =
Hares</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></p></div><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><div><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
VAN DE VELDE, Gunter (Gunter) [<a =
href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com">mailto:gunter.van_=
de_velde@alcatel-lucent.com</a>] <br><b>Sent:</b> Monday, October 26, =
2015 12:26 PM<br><b>To:</b> Lizhenbin; Susan Hares; <a =
href=3D"mailto:idr@ietf.org">idr@ietf.org</a><br><b>Cc:</b> <a =
href=3D"mailto:jgs@bgp.nu">jgs@bgp.nu</a><br><b>Subject:</b> Re: [Idr] =
Regarding draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D'font-size:10.0pt;font-family:"MS UI =
Gothic","sans-serif"'>=E7=AD=94=E5=A4=8D</span><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>: IDR =
interim (10/26/2015) 10:00am - 11:30am ET =
update</span><o:p></o:p></p></div></div></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><div><div><p =
class=3DMsoNormal><span style=3D'font-size:10.5pt'>Hi =
Robin,</span><o:p></o:p></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt'>&nbsp;</span><o:p></o:p></p></div></div><div><=
div><p class=3DMsoNormal><span style=3D'font-size:10.5pt'>Thanks for =
your note.</span><o:p></o:p></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt'>&nbsp;</span><o:p></o:p></p></div></div><div><=
div><p class=3DMsoNormal><span style=3D'font-size:10.5pt'>A tunnel is =
not always going over shortest path. Some tunnels are TE tunnels and are =
deliberately not going over a shortest path. This is something =
that&nbsp;<span =
style=3D'color:#1F497D'>draft-rosen-idr-tunnel-encaps-00&nbsp;</span>will=
 not help to signal because the tunnel-encap attribute indicates tunnel =
parameters used by the =
tail-end.</span><o:p></o:p></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt'>&nbsp;</span><o:p></o:p></p></div></div><div><=
div><p class=3DMsoNormal><span style=3D'font-size:10.5pt'>If a redirect =
tunnel represents a particular redirect/steering service (better delay, =
less packet loss, non-SRLG, more BW, etc=E2=80=A6) then it does become =
rather complex for BGP as signalling technology because a tunnel =
relationship is a unique between 'a headend' and =E2=80=98a tailed' =
device. It seems better to leave tunnel-setup to dedicated tunnel-setup =
mechanisms like PCEP, SR, =
etc=E2=80=A6.</span><o:p></o:p></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt'>&nbsp;</span><o:p></o:p></p></div></div><div><=
div><p class=3DMsoNormal><span style=3D'font-size:10.5pt'>The draft =
redirect-to-PATH_ID is providing the means to signal a flow-based =
redirect/steering service, and have each recipient router identify using =
local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: &quot;It signals a policy=E2=80=9D in reliable =
fashion.</span><o:p></o:p></p></div></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt'>&nbsp;</span><o:p></o:p></p></div></div><div><=
div><p class=3DMsoNormal><span style=3D'font-size:10.5pt'>Kind =
Regards,</span><o:p></o:p></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt'>G/</span><o:p></o:p></p></div></div><div><div>=
<p class=3DMsoNormal><span =
style=3D'font-size:10.5pt'>&nbsp;</span><o:p></o:p></p></div></div><div><=
div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt'>&nbsp;</span><o:p></o:p></p></div></div><div><=
div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt'>&nbsp;</span><o:p></o:p></p></div></div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><div><p class=3DMsoNormal><b>From:&nbsp;</b> Idr &lt;<a =
href=3D"mailto:idr-bounces@ietf.org">idr-bounces@ietf.org</a>&gt; on =
behalf of Lizhenbin &lt;<a =
href=3D"mailto:lizhenbin@huawei.com">lizhenbin@huawei.com</a>&gt;<br><b>D=
ate: </b>Monday 26 October 2015 at 16:51<br><b>To: </b>Susan Hares =
&lt;<a href=3D"mailto:shares@ndzh.com">shares@ndzh.com</a>&gt;, &quot;<a =
href=3D"mailto:idr@ietf.org">idr@ietf.org</a>&quot; &lt;<a =
href=3D"mailto:idr@ietf.org">idr@ietf.org</a>&gt;<br><b>Cc: </b>&quot;<a =
href=3D"mailto:jgs@bgp.nu">jgs@bgp.nu</a>&quot; &lt;<a =
href=3D"mailto:jgs@bgp.nu">jgs@bgp.nu</a>&gt;<br><b>Subject: </b>[Idr] =
Regarding draft-vandevelde-idr-flowspec-path-redirect//<span =
style=3D'font-family:"MS Gothic"'>=E7=AD=94=E5=A4=8D</span>: IDR interim =
(10/26/2015) 10:00am - 11:30am ET =
update<o:p></o:p></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt'>&nbsp;</span><o:p></o:p></p></div></div><div><=
div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>Hi =
Gunter,</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>Regar=
ding your presentation, I have following =
comments:</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>Do =
you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel =
setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic =
to the tunnel instead of signal tunnel setup. =
</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>I am =
not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the draft =
make you confused? We just hope to &nbsp;just reuses the attributes of =
to specify the tunnel type to help steering =
</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>the =
traffic to tunnel. If this is not a good way, maybe we can define new =
attributes.</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>Best =
Regards,</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>Robin=
</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp=
;</span><o:p></o:p></p></div><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><div><p class=3DMsoNormal><b><span lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E5=8F=91=E4=BB=B6=E4=BA=BA</span></b><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>:</span></b><span =
style=3D'font-size:10.0pt;font-family:SimSun'> Idr [<a =
href=3D"mailto:idr-bounces@ietf.org">mailto:idr-bounces@ietf.org</a>] =
</span><b><span lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E4=BB=A3=E8=A1=A8 </span></b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>Susan =
Hares<br></span><b><span lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4</span></b><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>:</span></b><span =
style=3D'font-size:10.0pt;font-family:SimSun'> 2015</span><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E5=B9=B4</span><span =
style=3D'font-size:10.0pt;font-family:SimSun'>10</span><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E6=9C=88</span><span =
style=3D'font-size:10.0pt;font-family:SimSun'>25</span><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E6=97=A5</span><span style=3D'font-size:10.0pt;font-family:SimSun'> =
22:07<br></span><b><span lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E6=94=B6=E4=BB=B6=E4=BA=BA</span></b><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>:</span></b><span =
style=3D'font-size:10.0pt;font-family:SimSun'> <a =
href=3D"mailto:idr@ietf.org">idr@ietf.org</a><br></span><b><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E6=8A=84=E9=80=81</span></b><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>:</span></b><span =
style=3D'font-size:10.0pt;font-family:SimSun'> <a =
href=3D"mailto:jgs@bgp.nu">jgs@bgp.nu</a><br></span><b><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E4=B8=BB=E9=A2=98</span></b><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>:</span></b><span =
style=3D'font-size:10.0pt;font-family:SimSun'> [Idr] IDR interim =
(10/26/2015) 10:00am - 11:30am ET =
update</span><o:p></o:p></p></div></div></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>IDR WG members: <o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>Below is an updated agenda for the IDR interim on =
10/26/2015.<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>Sue <o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>------------<o:p></o:p></p></div><div><p =
class=3DMsoNormal>IDR interim October 26, 2015 =
<o:p></o:p></p></div><div><p class=3DMsoNormal>10:00 - 11:30am =
<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>1. Chair's slides =
[10:00-10:05]<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>1. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p></o:p></p></div><div=
><p class=3DMsoNormal>&nbsp;&nbsp; speaker: Stephane Litowski&nbsp; =
<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Time: =
10:05-10:15<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp; =
<a =
href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-int=
erfaceset/">https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec=
-interfaceset/</a><o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp; <o:p></o:p></p></div><div><p =
class=3DMsoNormal>2. =
draft-hao-idr-flowspec-redirect-tunnel-00<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Weiguo =
Hao<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp; Time: =
10:15 - 10:25 <o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-t=
unnel/">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-t=
unnel/</a><o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp; =
<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>3. =
draft-vandevelde-idr-flowspec-path-redirect<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Gunter Van De =
Velde<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp; Time: =
10:25- 10:35<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp; =
<a =
href=3D"http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-pat=
h-redirect/">http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspe=
c-path-redirect/</a><o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp; <o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>4. Draft Name: draft-hao-idr-flowspec-nvo3-02 =
<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Speaker: Weiguo =
Hao<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp; Duration: =
10:35-10:40 <o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/">htt=
p://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a><o:p></o:p><=
/p></div><div><p class=3DMsoNormal>&nbsp;&nbsp; =
<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>5. =
draft-liang-idr-bgp-flowspec-label-01.txt.<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: <o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;Duration: 10:40-10:45 =
<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-labe=
l/">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/</=
a><o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp; =
<o:p></o:p></p></div><div><p class=3DMsoNormal>6. =
draft-liang-idr-bgp-flowspec-time<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp; presenter: Jianjie =
You<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp; time: =
10:45-10:55<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp; =
<a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time=
/">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/</a>=
<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>7. Draft Name: =
draft-li-idr-mpls-path-programming-02<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Zhenbin =
Li<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp; Duration: =
10:55-11:05 <o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programmin=
g/">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/</=
a><o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>7. Draft Name: =
draft-li-idr-flowspec-rpd-01<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp; Speaker: Shunwan =
Zhuang<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp; =
Duration: 11:05 - 11:15 <o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/">http:=
//datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/</a><o:p></o:p></p><=
/div><div><p class=3DMsoNormal>&nbsp;&nbsp; <o:p></o:p></p></div><div><p =
class=3DMsoNormal>8.&nbsp; Discussion of Flowspec =
drafts<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;&nbsp;&nbsp; =
11:15 - 11:30am <o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;Meeting Web-ex information =
<o:p></o:p></p></div><div><p class=3DMsoNormal>&nbsp;Monday, October 26, =
2015 <o:p></o:p></p></div><div><p class=3DMsoNormal>10:00 am&nbsp; =
|&nbsp; Eastern Daylight Time (New York, GMT-04:00)&nbsp; |&nbsp; 2 hrs =
<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>webex infor: <o:p></o:p></p></div><div><p =
class=3DMsoNormal><a =
href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599=
c3ff3143f">https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e=
599c3ff3143f</a><o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>Meeting number: =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 964 970 =
<o:p></o:p></p></div><div><p class=3DMsoNormal>Meeting =
password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
flow.in.nets<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>Join by phone<o:p></o:p></p></div><div><p =
class=3DMsoNormal>1-877-668-4493 Call-in toll free number =
(US/Canada)<o:p></o:p></p></div><div><p class=3DMsoNormal>1-650-479-3208 =
Call-in toll number (US/Canada)<o:p></o:p></p></div><div><p =
class=3DMsoNormal>Access code: 644 964 970<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div></div></div></div><p =
class=3DMsoNormal><span style=3D'font-size:12.0pt;font-family:"Times New =
Roman","serif"'>_______________________________________________<br>Idr =
mailing list<br><a href=3D"mailto:Idr@ietf.org">Idr@ietf.org</a><br><a =
href=3D"https://www.ietf.org/mailman/listinfo/idr">https://www.ietf.org/m=
ailman/listinfo/idr</a><o:p></o:p></span></p></div></blockquote></div><p =
class=3DMsoNormal><span style=3D'font-size:12.0pt;font-family:"Times New =
Roman","serif"'><o:p>&nbsp;</o:p></span></p></div></body></html>
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From nobody Tue Oct 27 17:26:09 2015
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From: Lucy yong <lucy.yong@huawei.com>
To: "UTTARO, JAMES" <ju1738@att.com>, Robert Raszuk <robert@raszuk.net>, Susan Hares <shares@ndzh.com>
Thread-Topic: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 = Change to 16:30 to 17:30?
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Date: Wed, 28 Oct 2015 00:25:52 +0000
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Subject: Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 = Change to 16:30 to 17:30?
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From: Lucy yong <lucy.yong@huawei.com>
To: Gunter Van De Velde <guntervandeveldecc@icloud.com>, Susan Hares <shares@ndzh.com>
Thread-Topic: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//??:  IDR interim (10/26/2015) 10:00am - 11:30am ET update
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Date: Wed, 28 Oct 2015 00:38:03 +0000
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Subject: Re: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//??: IDR interim (10/26/2015) 10:00am - 11:30am ET update
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--_000_2691CE0099834E4A9C5044EEC662BB9D57200E91dfweml701chm_--


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From: Haoweiguo <haoweiguo@huawei.com>
To: Lucy yong <lucy.yong@huawei.com>, "UTTARO, JAMES" <ju1738@att.com>, Robert Raszuk <robert@raszuk.net>, Susan Hares <shares@ndzh.com>
Thread-Topic: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 = Change to 16:30 to 17:30?
Thread-Index: AQHRERnTjuow6/s1pU+ZT+KyQiby4p6AGdGd
Date: Wed, 28 Oct 2015 01:15:40 +0000
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Cc: idr wg <idr@ietf.org>, "John G. Scudder" <jgs@bgp.nu>
Subject: Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 = Change to 16:30 to 17:30?
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I will also be there.



weiguo

________________________________
From: Idr [idr-bounces@ietf.org] on behalf of Lucy yong [lucy.yong@huawei.c=
om]
Sent: Wednesday, October 28, 2015 8:25
To: UTTARO, JAMES; Robert Raszuk; Susan Hares
Cc: idr wg; John G. Scudder
Subject: Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 =3D Chan=
ge to 16:30 to 17:30?

I will be there.

Lucy

From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of UTTARO, JAMES
Sent: Tuesday, October 27, 2015 3:59 PM
To: Robert Raszuk; Susan Hares
Cc: idr wg; John G. Scudder
Subject: Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 =3D Chan=
ge to 14:30 to 17:30?

See u then..

Jim Uttaro

From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Robert Raszuk
Sent: Tuesday, October 27, 2015 2:25 PM
To: Susan Hares
Cc: idr wg; John G. Scudder
Subject: Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 =3D Chan=
ge to 14:30 to 17:30?


16:30-17:30 is a much better time .. especially for those staying in other =
hotels :)

Thx,
r.

On Tue, Oct 27, 2015 at 7:23 PM, Susan Hares <shares@ndzh.com<mailto:shares=
@ndzh.com>> wrote:
Hi all:

Jeff indicated this time overlaps with the yang editing session.

Would people be able to meet from 16:30 to 17:30?   This will only take 30 =
minutes out of the Yang editing session.

Sue Hares

From: Idr [mailto:idr-bounces@ietf.org<mailto:idr-bounces@ietf.org>] On Beh=
alf Of Susan Hares
Sent: Tuesday, October 27, 2015 1:39 PM
To: idr@ietf.org<mailto:idr@ietf.org>
Cc: 'John G. Scudder'
Subject: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015

Hi all:

Flowspec draft authors desired to meet at IETF on Sunday November 1, 2015. =
  Can we meet at 14:30 to 16:00?   Please send me a note if you would like =
to attend and cannot meet at this time at IETF 94.

We=92ll plan to meet at the registration desk.

Sue


_______________________________________________
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<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">
<p><font size=3D"3" face=3D"Calibri">I will also be there.</font></p>
<p><font size=3D"3" face=3D"Calibri"></font>&nbsp;</p>
<p><font size=3D"3" face=3D"Calibri">weiguo</font></p>
<div style=3D"FONT-FAMILY: Times New Roman; COLOR: #000000; FONT-SIZE: 16px=
">
<hr tabindex=3D"-1">
<div style=3D"DIRECTION: ltr" id=3D"divRpF449883"><font color=3D"#000000" s=
ize=3D"2" face=3D"Tahoma"><b>From:</b> Idr [idr-bounces@ietf.org] on behalf=
 of Lucy yong [lucy.yong@huawei.com]<br>
<b>Sent:</b> Wednesday, October 28, 2015 8:25<br>
<b>To:</b> UTTARO, JAMES; Robert Raszuk; Susan Hares<br>
<b>Cc:</b> idr wg; John G. Scudder<br>
<b>Subject:</b> Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 =
=3D Change to 16:30 to 17:30?<br>
</font><br>
</div>
<div></div>
<div>
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: 'Calibri','sans-serif'; =
COLOR: #1f497d; FONT-SIZE: 11pt">I will be there.</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: 'Calibri','sans-serif'; =
COLOR: #1f497d; FONT-SIZE: 11pt"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: 'Calibri','sans-serif'; =
COLOR: #1f497d; FONT-SIZE: 11pt">Lucy</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: 'Calibri','sans-serif'; =
COLOR: #1f497d; FONT-SIZE: 11pt"></span>&nbsp;</p>
<div>
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-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1p=
t solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<p class=3D"MsoNormal"><b><span style=3D"FONT-FAMILY: 'Tahoma','sans-serif'=
; FONT-SIZE: 10pt">From:</span></b><span style=3D"FONT-FAMILY: 'Tahoma','sa=
ns-serif'; FONT-SIZE: 10pt"> Idr [mailto:idr-bounces@ietf.org]
<b>On Behalf Of </b>UTTARO, JAMES<br>
<b>Sent:</b> Tuesday, October 27, 2015 3:59 PM<br>
<b>To:</b> Robert Raszuk; Susan Hares<br>
<b>Cc:</b> idr wg; John G. Scudder<br>
<b>Subject:</b> Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 =
=3D Change to 14:30 to 17:30?</span></p>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal"><b><i><span style=3D"FONT-FAMILY: 'Calibri','sans-se=
rif'; COLOR: #1f497d; FONT-SIZE: 11pt">See u then..</span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"FONT-FAMILY: 'Calibri','sans-se=
rif'; COLOR: #1f497d; FONT-SIZE: 11pt"></span></i></b>&nbsp;</p>
<p class=3D"MsoNormal"><b><i><span style=3D"FONT-FAMILY: 'Calibri','sans-se=
rif'; COLOR: #1f497d; FONT-SIZE: 11pt">Jim Uttaro</span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"FONT-FAMILY: 'Calibri','sans-se=
rif'; COLOR: #1f497d; FONT-SIZE: 11pt"></span></i></b>&nbsp;</p>
<p class=3D"MsoNormal"><b><span style=3D"FONT-FAMILY: 'Tahoma','sans-serif'=
; FONT-SIZE: 10pt">From:</span></b><span style=3D"FONT-FAMILY: 'Tahoma','sa=
ns-serif'; FONT-SIZE: 10pt"> Idr [<a href=3D"mailto:idr-bounces@ietf.org" t=
arget=3D"_blank">mailto:idr-bounces@ietf.org</a>]
<b>On Behalf Of </b>Robert Raszuk<br>
<b>Sent:</b> Tuesday, October 27, 2015 2:25 PM<br>
<b>To:</b> Susan Hares<br>
<b>Cc:</b> idr wg; John G. Scudder<br>
<b>Subject:</b> Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 =
=3D Change to 14:30 to 17:30?</span></p>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: 'Arial','sans-serif'"></=
span>&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: 'Arial','sans-serif'">16=
:30-17:30 is a much better time .. especially for those staying in other ho=
tels :)</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: 'Arial','sans-serif'"></=
span>&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: 'Arial','sans-serif'">Th=
x,</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-FAMILY: 'Arial','sans-serif'">r.=
</span></p>
</div>
</div>
<div>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<p class=3D"MsoNormal">On Tue, Oct 27, 2015 at 7:23 PM, Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com" target=3D"_blank">shares@ndzh.com</a>&gt; w=
rote:</p>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"COLOR: #1f497d">Hi all: </span></p>
<p class=3D"MsoNormal"><span style=3D"COLOR: #1f497d"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"COLOR: #1f497d">Jeff indicated this t=
ime overlaps with the yang editing session.&nbsp;&nbsp;
</span></p>
<p class=3D"MsoNormal"><span style=3D"COLOR: #1f497d"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"COLOR: #1f497d">Would people be able =
to meet from 16:30 to 17:30?&nbsp; &nbsp;This will only take 30 minutes out=
 of the Yang editing session.
</span></p>
<p class=3D"MsoNormal"><span style=3D"COLOR: #1f497d"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"COLOR: #1f497d">Sue Hares</span></p>
<p class=3D"MsoNormal"><span style=3D"COLOR: #1f497d"></span>&nbsp;</p>
<div>
<div style=3D"BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING=
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<p class=3D"MsoNormal"><b><span style=3D"FONT-FAMILY: 'Tahoma','sans-serif'=
; FONT-SIZE: 10pt">From:</span></b><span style=3D"FONT-FAMILY: 'Tahoma','sa=
ns-serif'; FONT-SIZE: 10pt"> Idr [mailto:<a href=3D"mailto:idr-bounces@ietf=
.org" target=3D"_blank">idr-bounces@ietf.org</a>]
<b>On Behalf Of </b>Susan Hares<br>
<b>Sent:</b> Tuesday, October 27, 2015 1:39 PM<br>
<b>To:</b> <a href=3D"mailto:idr@ietf.org" target=3D"_blank">idr@ietf.org</=
a><br>
<b>Cc:</b> 'John G. Scudder'<br>
<b>Subject:</b> [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015</span=
></p>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal">Hi all: </p>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal">Flowspec draft authors desired to meet at IETF on Su=
nday November 1, 2015.&nbsp; &nbsp;Can we meet at 14:30 to 16:00?&nbsp;&nbs=
p; Please send me a note if you would like to attend and cannot meet at thi=
s time at IETF 94.
</p>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal">We=92ll plan to meet at the registration desk. </p>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal">Sue </p>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
</div>
<p style=3D"MARGIN-BOTTOM: 12pt" class=3D"MsoNormal"><br>
_______________________________________________<br>
Idr mailing list<br>
<a href=3D"mailto:Idr@ietf.org" target=3D"_blank">Idr@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" target=3D"_blank">htt=
ps://www.ietf.org/mailman/listinfo/idr</a></p>
</div>
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From nobody Tue Oct 27 20:12:55 2015
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From: Zhuangshunwan <zhuangshunwan@huawei.com>
To: Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
Thread-Topic: [Idr] 14:30 - 16:00  IDR Flowspec meeting on 11/1/2015
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Date: Wed, 28 Oct 2015 03:12:45 +0000
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Subject: Re: [Idr] 14:30 - 16:00  IDR Flowspec meeting on 11/1/2015
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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">I will be there.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Shunwan<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
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<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:SimSu=
n">=B7=A2=BC=FE=C8=CB<span lang=3D"EN-US">:</span></span></b><span lang=3D"=
EN-US" style=3D"font-size:10.0pt;font-family:SimSun"> Idr [mailto:idr-bounc=
es@ietf.org]
</span><b><span style=3D"font-size:10.0pt;font-family:SimSun">=B4=FA=B1=ED =
</span></b><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:SimSu=
n">Susan Hares<br>
</span><b><span style=3D"font-size:10.0pt;font-family:SimSun">=B7=A2=CB=CD=
=CA=B1=BC=E4<span lang=3D"EN-US">:</span></span></b><span lang=3D"EN-US" st=
yle=3D"font-size:10.0pt;font-family:SimSun"> 2015</span><span style=3D"font=
-size:10.0pt;font-family:SimSun">=C4=EA<span lang=3D"EN-US">10</span>=D4=C2=
<span lang=3D"EN-US">28</span>=C8=D5<span lang=3D"EN-US">
 1:39<br>
</span><b>=CA=D5=BC=FE=C8=CB<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> idr@ietf.org<br>
</span><b>=B3=AD=CB=CD<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> 'John G. Scudder'<br>
</span><b>=D6=F7=CC=E2<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015<o:p></o:p></span></=
span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi all: <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Flowspec draft authors desired =
to meet at IETF on Sunday November 1, 2015.&nbsp; &nbsp;Can we meet at 14:3=
0 to 16:00?&nbsp;&nbsp; Please send me a note if you would like to attend a=
nd cannot meet at this time at IETF 94.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">We=A1=AFll plan to meet at the =
registration desk.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Sue <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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--_000_19AB2A007F56DB4E8257F949A2FB9858A97CF27Enkgeml512mbxchi_--


From nobody Wed Oct 28 01:22:59 2015
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Date: Wed, 28 Oct 2015 09:22:46 +0100
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References: <03fb01d110e4$a5712a60$f0537f20$@ndzh.com> <CA+b+ERkrTPD2igCWm5LUjMDrCwqpee8mSGxme-=u_+5Edr3pJg@mail.gmail.com> <B17A6910EEDD1F45980687268941550F0CD2E59E@MISOUT7MSGUSRCD.ITServices.sbc.com> <2691CE0099834E4A9C5044EEC662BB9D57200E78@dfweml701-chm> <DD5FC8DE455C3348B94340C0AB5517334F8D3915@nkgeml501-mbs.china.huawei.com>
To: Haoweiguo <haoweiguo@huawei.com>
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Archived-At: <http://mailarchive.ietf.org/arch/msg/idr/X64ntXUT0dEkOwhFTm7_Gd8L9Rc>
Cc: idr wg <idr@ietf.org>, Robert Raszuk <robert@raszuk.net>, "John G. Scudder" <jgs@bgp.nu>, James Uttaro <ju1738@att.com>, Susan Hares <shares@ndzh.com>
Subject: Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 = Change to 16:30 to 17:30?
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I land early afternoon=85If delay and border police allow, i=92ll be =
there.

G/



> On 28 Oct 2015, at 02:15, Haoweiguo <haoweiguo@huawei.com> wrote:
>=20
> I will also be there.
> =20
> weiguo
> From: Idr [idr-bounces@ietf.org] on behalf of Lucy yong =
[lucy.yong@huawei.com]
> Sent: Wednesday, October 28, 2015 8:25
> To: UTTARO, JAMES; Robert Raszuk; Susan Hares
> Cc: idr wg; John G. Scudder
> Subject: Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 =3D =
Change to 16:30 to 17:30?
>=20
> I will be there.
> =20
> Lucy
> =20
> From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of UTTARO, JAMES
> Sent: Tuesday, October 27, 2015 3:59 PM
> To: Robert Raszuk; Susan Hares
> Cc: idr wg; John G. Scudder
> Subject: Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 =3D =
Change to 14:30 to 17:30?
> =20
> See u then..
> =20
> Jim Uttaro
> =20
> From: Idr [mailto:idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>] =
On Behalf Of Robert Raszuk
> Sent: Tuesday, October 27, 2015 2:25 PM
> To: Susan Hares
> Cc: idr wg; John G. Scudder
> Subject: Re: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015 =3D =
Change to 14:30 to 17:30?
> =20
> =20
> 16:30-17:30 is a much better time .. especially for those staying in =
other hotels :)
> =20
> Thx,
> r.
> =20
> On Tue, Oct 27, 2015 at 7:23 PM, Susan Hares <shares@ndzh.com =
<mailto:shares@ndzh.com>> wrote:
> Hi all:=20
> =20
> Jeff indicated this time overlaps with the yang editing session. =20
> =20
> Would people be able to meet from 16:30 to 17:30?   This will only =
take 30 minutes out of the Yang editing session.
> =20
> Sue Hares
> =20
> From: Idr [mailto:idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>] =
On Behalf Of Susan Hares
> Sent: Tuesday, October 27, 2015 1:39 PM
> To: idr@ietf.org <mailto:idr@ietf.org>
> Cc: 'John G. Scudder'
> Subject: [Idr] 14:30 - 16:00 IDR Flowspec meeting on 11/1/2015
> =20
> Hi all:=20
> =20
> Flowspec draft authors desired to meet at IETF on Sunday November 1, =
2015.   Can we meet at 14:30 to 16:00?   Please send me a note if you =
would like to attend and cannot meet at this time at IETF 94.
> =20
> We=92ll plan to meet at the registration desk.=20
> =20
> Sue=20
> =20
>=20
> _______________________________________________
> Idr mailing list
> Idr@ietf.org <mailto:Idr@ietf.org>
> https://www.ietf.org/mailman/listinfo/idr =
<https://www.ietf.org/mailman/listinfo/idr>
> =20
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr


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-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">I land early afternoon=85If delay and border police allow, =
i=92ll be there.<div class=3D""><br class=3D""></div><div class=3D"">G/<br=
 class=3D""><div class=3D""><br class=3D""></div><div class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""><div><blockquote =
type=3D"cite" class=3D""><div class=3D"">On 28 Oct 2015, at 02:15, =
Haoweiguo &lt;<a href=3D"mailto:haoweiguo@huawei.com" =
class=3D"">haoweiguo@huawei.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div =
style=3D"font-style: normal; font-variant: normal; font-weight: normal; =
letter-spacing: normal; orphans: auto; text-align: start; text-indent: =
0px; text-transform: none; white-space: normal; widows: auto; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; direction: ltr; =
font-family: Tahoma; font-size: 10pt;" class=3D""><div =
style=3D"margin-top: 0px; margin-bottom: 0px;" class=3D""><font size=3D"3"=
 face=3D"Calibri" class=3D"">I will also be there.</font></div><p =
style=3D"margin-top: 0px; margin-bottom: 0px;" class=3D""><font size=3D"3"=
 face=3D"Calibri" class=3D""></font>&nbsp;</p><div style=3D"margin-top: =
0px; margin-bottom: 0px;" class=3D""><font size=3D"3" face=3D"Calibri" =
class=3D"">weiguo</font></div><div style=3D"font-family: 'Times New =
Roman'; font-size: 16px;" class=3D""><hr tabindex=3D"-1" class=3D""><div =
id=3D"divRpF449883" style=3D"direction: ltr;" class=3D""><font size=3D"2" =
face=3D"Tahoma" class=3D""><b class=3D"">From:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Idr [<a =
href=3D"mailto:idr-bounces@ietf.org" class=3D"">idr-bounces@ietf.org</a>] =
on behalf of Lucy yong [<a href=3D"mailto:lucy.yong@huawei.com" =
class=3D"">lucy.yong@huawei.com</a>]<br class=3D""><b =
class=3D"">Sent:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Wednesday, October 28, 2015 =
8:25<br class=3D""><b class=3D"">To:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>UTTARO, JAMES; Robert =
Raszuk; Susan Hares<br class=3D""><b class=3D"">Cc:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>idr wg; John G. Scudder<br =
class=3D""><b class=3D"">Subject:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Re: [Idr] 14:30 - 16:00 IDR =
Flowspec meeting on 11/1/2015 =3D Change to 16:30 to 17:30?<br =
class=3D""></font><br class=3D""></div><div class=3D""></div><div =
class=3D""><div class=3D"WordSection1"><div style=3D"margin: 0in 0in =
0pt; font-family: 'Times New Roman', serif; font-size: 12pt;" =
class=3D""><span style=3D"font-family: Calibri, sans-serif; color: =
rgb(31, 73, 125); font-size: 11pt;" class=3D"">I will be =
there.</span></div><p class=3D"MsoNormal" style=3D"margin: 0in 0in 0pt; =
font-family: 'Times New Roman', serif; font-size: 12pt;"><span =
style=3D"font-family: Calibri, sans-serif; color: rgb(31, 73, 125); =
font-size: 11pt;" class=3D""></span>&nbsp;</p><div style=3D"margin: 0in =
0in 0pt; font-family: 'Times New Roman', serif; font-size: 12pt;" =
class=3D""><span style=3D"font-family: Calibri, sans-serif; color: =
rgb(31, 73, 125); font-size: 11pt;" class=3D"">Lucy</span></div><p =
class=3D"MsoNormal" style=3D"margin: 0in 0in 0pt; font-family: 'Times =
New Roman', serif; font-size: 12pt;"><span style=3D"font-family: =
Calibri, sans-serif; color: rgb(31, 73, 125); font-size: 11pt;" =
class=3D""></span>&nbsp;</p><div class=3D""><div style=3D"border-width: =
1pt medium medium; border-style: solid none none; padding: 3pt 0in 0in; =
border-top-color: rgb(181, 196, 223);" class=3D""><div style=3D"margin: =
0in 0in 0pt; font-family: 'Times New Roman', serif; font-size: 12pt;" =
class=3D""><b class=3D""><span style=3D"font-family: Tahoma, sans-serif; =
font-size: 10pt;" class=3D"">From:</span></b><span style=3D"font-family: =
Tahoma, sans-serif; font-size: 10pt;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>Idr [<a =
href=3D"mailto:idr-bounces@ietf.org" =
class=3D"">mailto:idr-bounces@ietf.org</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span><b class=3D"">On Behalf =
Of<span class=3D"Apple-converted-space">&nbsp;</span></b>UTTARO, =
JAMES<br class=3D""><b class=3D"">Sent:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Tuesday, October 27, 2015 =
3:59 PM<br class=3D""><b class=3D"">To:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Robert Raszuk; Susan =
Hares<br class=3D""><b class=3D"">Cc:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>idr wg; John G. Scudder<br =
class=3D""><b class=3D"">Subject:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Re: [Idr] 14:30 - 16:00 IDR =
Flowspec meeting on 11/1/2015 =3D Change to 14:30 to =
17:30?</span></div></div></div><p class=3D"MsoNormal" style=3D"margin: =
0in 0in 0pt; font-family: 'Times New Roman', serif; font-size: =
12pt;">&nbsp;</p><div style=3D"margin: 0in 0in 0pt; font-family: 'Times =
New Roman', serif; font-size: 12pt;" class=3D""><b class=3D""><i =
class=3D""><span style=3D"font-family: Calibri, sans-serif; color: =
rgb(31, 73, 125); font-size: 11pt;" class=3D"">See u =
then..</span></i></b></div><div style=3D"margin: 0in 0in 0pt; =
font-family: 'Times New Roman', serif; font-size: 12pt;" class=3D""><b =
class=3D""><i class=3D""><span style=3D"font-family: Calibri, =
sans-serif; color: rgb(31, 73, 125); font-size: 11pt;" =
class=3D""></span></i></b>&nbsp;</div><div style=3D"margin: 0in 0in 0pt; =
font-family: 'Times New Roman', serif; font-size: 12pt;" class=3D""><b =
class=3D""><i class=3D""><span style=3D"font-family: Calibri, =
sans-serif; color: rgb(31, 73, 125); font-size: 11pt;" class=3D"">Jim =
Uttaro</span></i></b></div><div style=3D"margin: 0in 0in 0pt; =
font-family: 'Times New Roman', serif; font-size: 12pt;" class=3D""><b =
class=3D""><i class=3D""><span style=3D"font-family: Calibri, =
sans-serif; color: rgb(31, 73, 125); font-size: 11pt;" =
class=3D""></span></i></b>&nbsp;</div><div style=3D"margin: 0in 0in 0pt; =
font-family: 'Times New Roman', serif; font-size: 12pt;" class=3D""><b =
class=3D""><span style=3D"font-family: Tahoma, sans-serif; font-size: =
10pt;" class=3D"">From:</span></b><span style=3D"font-family: Tahoma, =
sans-serif; font-size: 10pt;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>Idr [<a =
href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank" style=3D"color: =
purple; text-decoration: underline;" =
class=3D"">mailto:idr-bounces@ietf.org</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span><b class=3D"">On Behalf =
Of<span class=3D"Apple-converted-space">&nbsp;</span></b>Robert =
Raszuk<br class=3D""><b class=3D"">Sent:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Tuesday, October 27, 2015 =
2:25 PM<br class=3D""><b class=3D"">To:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Susan Hares<br class=3D""><b =
class=3D"">Cc:</b><span class=3D"Apple-converted-space">&nbsp;</span>idr =
wg; John G. Scudder<br class=3D""><b class=3D"">Subject:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Re: [Idr] 14:30 - 16:00 IDR =
Flowspec meeting on 11/1/2015 =3D Change to 14:30 to =
17:30?</span></div><p class=3D"MsoNormal" style=3D"margin: 0in 0in 0pt; =
font-family: 'Times New Roman', serif; font-size: 12pt;">&nbsp;</p><div =
class=3D""><div class=3D""><p class=3D"MsoNormal" style=3D"margin: 0in =
0in 0pt; font-family: 'Times New Roman', serif; font-size: 12pt;"><span =
style=3D"font-family: Arial, sans-serif;" =
class=3D""></span>&nbsp;</p></div><div class=3D""><div style=3D"margin: =
0in 0in 0pt; font-family: 'Times New Roman', serif; font-size: 12pt;" =
class=3D""><span style=3D"font-family: Arial, sans-serif;" =
class=3D"">16:30-17:30 is a much better time .. especially for those =
staying in other hotels :)</span></div></div><div class=3D""><p =
class=3D"MsoNormal" style=3D"margin: 0in 0in 0pt; font-family: 'Times =
New Roman', serif; font-size: 12pt;"><span style=3D"font-family: Arial, =
sans-serif;" class=3D""></span>&nbsp;</p></div><div class=3D""><div =
style=3D"margin: 0in 0in 0pt; font-family: 'Times New Roman', serif; =
font-size: 12pt;" class=3D""><span style=3D"font-family: Arial, =
sans-serif;" class=3D"">Thx,</span></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0pt; font-family: 'Times New Roman', serif; =
font-size: 12pt;" class=3D""><span style=3D"font-family: Arial, =
sans-serif;" class=3D"">r.</span></div></div></div><div class=3D""><p =
class=3D"MsoNormal" style=3D"margin: 0in 0in 0pt; font-family: 'Times =
New Roman', serif; font-size: 12pt;">&nbsp;</p><div class=3D""><div =
style=3D"margin: 0in 0in 0pt; font-family: 'Times New Roman', serif; =
font-size: 12pt;" class=3D"">On Tue, Oct 27, 2015 at 7:23 PM, Susan =
Hares &lt;<a href=3D"mailto:shares@ndzh.com" target=3D"_blank" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">shares@ndzh.com</a>&gt; wrote:</div><div class=3D""><div =
class=3D""><div style=3D"margin: 0in 0in 0pt; font-family: 'Times New =
Roman', serif; font-size: 12pt;" class=3D""><span style=3D"color: =
rgb(31, 73, 125);" class=3D"">Hi all:<span =
class=3D"Apple-converted-space">&nbsp;</span></span></div><p =
class=3D"MsoNormal" style=3D"margin: 0in 0in 0pt; font-family: 'Times =
New Roman', serif; font-size: 12pt;"><span style=3D"color: rgb(31, 73, =
125);" class=3D""></span>&nbsp;</p><div style=3D"margin: 0in 0in 0pt; =
font-family: 'Times New Roman', serif; font-size: 12pt;" class=3D""><span =
style=3D"color: rgb(31, 73, 125);" class=3D"">Jeff indicated this time =
overlaps with the yang editing session.&nbsp;&nbsp;</span></div><p =
class=3D"MsoNormal" style=3D"margin: 0in 0in 0pt; font-family: 'Times =
New Roman', serif; font-size: 12pt;"><span style=3D"color: rgb(31, 73, =
125);" class=3D""></span>&nbsp;</p><div style=3D"margin: 0in 0in 0pt; =
font-family: 'Times New Roman', serif; font-size: 12pt;" class=3D""><span =
style=3D"color: rgb(31, 73, 125);" class=3D"">Would people be able to =
meet from 16:30 to 17:30?&nbsp; &nbsp;This will only take 30 minutes out =
of the Yang editing session.</span></div><p class=3D"MsoNormal" =
style=3D"margin: 0in 0in 0pt; font-family: 'Times New Roman', serif; =
font-size: 12pt;"><span style=3D"color: rgb(31, 73, 125);" =
class=3D""></span>&nbsp;</p><div style=3D"margin: 0in 0in 0pt; =
font-family: 'Times New Roman', serif; font-size: 12pt;" class=3D""><span =
style=3D"color: rgb(31, 73, 125);" class=3D"">Sue Hares</span></div><p =
class=3D"MsoNormal" style=3D"margin: 0in 0in 0pt; font-family: 'Times =
New Roman', serif; font-size: 12pt;"><span style=3D"color: rgb(31, 73, =
125);" class=3D""></span>&nbsp;</p><div class=3D""><div =
style=3D"border-width: 1pt medium medium; border-style: solid none none; =
padding: 3pt 0in 0in; border-top-color: rgb(181, 196, 223);" =
class=3D""><div style=3D"margin: 0in 0in 0pt; font-family: 'Times New =
Roman', serif; font-size: 12pt;" class=3D""><b class=3D""><span =
style=3D"font-family: Tahoma, sans-serif; font-size: 10pt;" =
class=3D"">From:</span></b><span style=3D"font-family: Tahoma, =
sans-serif; font-size: 10pt;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>Idr [mailto:<a =
href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank" style=3D"color: =
purple; text-decoration: underline;" =
class=3D"">idr-bounces@ietf.org</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span><b class=3D"">On Behalf =
Of<span class=3D"Apple-converted-space">&nbsp;</span></b>Susan Hares<br =
class=3D""><b class=3D"">Sent:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Tuesday, October 27, 2015 =
1:39 PM<br class=3D""><b class=3D"">To:</b><span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:idr@ietf.org" target=3D"_blank" style=3D"color: purple; =
text-decoration: underline;" class=3D"">idr@ietf.org</a><br class=3D""><b =
class=3D"">Cc:</b><span class=3D"Apple-converted-space">&nbsp;</span>'John=
 G. Scudder'<br class=3D""><b class=3D"">Subject:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>[Idr] 14:30 - 16:00 IDR =
Flowspec meeting on 11/1/2015</span></div></div></div><p =
class=3D"MsoNormal" style=3D"margin: 0in 0in 0pt; font-family: 'Times =
New Roman', serif; font-size: 12pt;">&nbsp;</p><div style=3D"margin: 0in =
0in 0pt; font-family: 'Times New Roman', serif; font-size: 12pt;" =
class=3D"">Hi all:<span =
class=3D"Apple-converted-space">&nbsp;</span></div><p class=3D"MsoNormal" =
style=3D"margin: 0in 0in 0pt; font-family: 'Times New Roman', serif; =
font-size: 12pt;">&nbsp;</p><div style=3D"margin: 0in 0in 0pt; =
font-family: 'Times New Roman', serif; font-size: 12pt;" =
class=3D"">Flowspec draft authors desired to meet at IETF on Sunday =
November 1, 2015.&nbsp; &nbsp;Can we meet at 14:30 to 16:00?&nbsp;&nbsp; =
Please send me a note if you would like to attend and cannot meet at =
this time at IETF 94.</div><p class=3D"MsoNormal" style=3D"margin: 0in =
0in 0pt; font-family: 'Times New Roman', serif; font-size: =
12pt;">&nbsp;</p><div style=3D"margin: 0in 0in 0pt; font-family: 'Times =
New Roman', serif; font-size: 12pt;" class=3D"">We=92ll plan to meet at =
the registration desk.<span =
class=3D"Apple-converted-space">&nbsp;</span></div><p class=3D"MsoNormal" =
style=3D"margin: 0in 0in 0pt; font-family: 'Times New Roman', serif; =
font-size: 12pt;">&nbsp;</p><div style=3D"margin: 0in 0in 0pt; =
font-family: 'Times New Roman', serif; font-size: 12pt;" =
class=3D"">Sue<span class=3D"Apple-converted-space">&nbsp;</span></div><p =
class=3D"MsoNormal" style=3D"margin: 0in 0in 0pt; font-family: 'Times =
New Roman', serif; font-size: 12pt;">&nbsp;</p></div></div><p =
class=3D"MsoNormal" style=3D"margin: 0in 0in 12pt; font-family: 'Times =
New Roman', serif; font-size: 12pt;"><br =
class=3D"">_______________________________________________<br =
class=3D"">Idr mailing list<br class=3D""><a href=3D"mailto:Idr@ietf.org" =
target=3D"_blank" style=3D"color: purple; text-decoration: underline;" =
class=3D"">Idr@ietf.org</a><br class=3D""><a =
href=3D"https://www.ietf.org/mailman/listinfo/idr" target=3D"_blank" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">https://www.ietf.org/mailman/listinfo/idr</a></p></div><p =
class=3D"MsoNormal" style=3D"margin: 0in 0in 0pt; font-family: 'Times =
New Roman', serif; font-size: =
12pt;">&nbsp;</p></div></div></div></div></div><span style=3D"font-family:=
 Helvetica; font-size: 12px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: =
none; display: inline !important;" =
class=3D"">_______________________________________________</span><br =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant: normal; font-weight: normal; letter-spacing: normal; =
orphans: auto; text-align: start; text-indent: 0px; text-transform: =
none; white-space: normal; widows: auto; word-spacing: 0px; =
-webkit-text-stroke-width: 0px;" class=3D""><span style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: =
none; display: inline !important;" class=3D"">Idr mailing list</span><br =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant: normal; font-weight: normal; letter-spacing: normal; =
orphans: auto; text-align: start; text-indent: 0px; text-transform: =
none; white-space: normal; widows: auto; word-spacing: 0px; =
-webkit-text-stroke-width: 0px;" class=3D""><span style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: =
none; display: inline !important;" class=3D""><a =
href=3D"mailto:Idr@ietf.org" class=3D"">Idr@ietf.org</a></span><br =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant: normal; font-weight: normal; letter-spacing: normal; =
orphans: auto; text-align: start; text-indent: 0px; text-transform: =
none; white-space: normal; widows: auto; word-spacing: 0px; =
-webkit-text-stroke-width: 0px;" class=3D""><span style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: =
none; display: inline !important;" class=3D""><a =
href=3D"https://www.ietf.org/mailman/listinfo/idr" =
class=3D"">https://www.ietf.org/mailman/listinfo/idr</a></span></div></blo=
ckquote></div><br class=3D""></div></div></body></html>=

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Subject: [Idr] Second meeting for IDR Flow Specification and Tunnels at IETF
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Hi all: 

 

We will be meeting at 16:30 - 17:30 on Sunday 11/2/2015 at the registration
desk.  We will find a place to chat about IDR flow specification.  

 

Some people have asked for a 2nd meeting at IETF 94 on IDR flow
Specification after Monday.   Here's a doodle pool for times for the 2nd
meeting. 

 

http://doodle.com/poll/em9gay9anr9m8q6a

 

Sue Hares 

 


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>Hi all: =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>We will be meeting at 16:30 &#8211; 17:30 on Sunday =
11/2/2015 at the registration desk.&nbsp; We will find a place to chat =
about IDR flow specification.&nbsp; <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Some people =
have asked for a 2<sup>nd</sup> meeting at IETF 94 on IDR flow =
Specification after Monday.&nbsp;&nbsp; Here&#8217;s a doodle pool for =
times for the 2<sup>nd</sup> meeting. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><a =
href=3D"http://doodle.com/poll/em9gay9anr9m8q6a">http://doodle.com/poll/e=
m9gay9anr9m8q6a</a><o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sue Hares =
<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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From nobody Wed Oct 28 02:37:59 2015
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From: Gunter Van De Velde <guntervandeveldecc@icloud.com>
In-reply-to: <009a01d1110f$7117ecb0$5347c610$@ndzh.com>
Date: Wed, 28 Oct 2015 10:37:49 +0100
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References: <009b01d10f2e$5cc28820$16479860$@ndzh.com> <5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5C638@nkgeml506-mbx.china.huawei.com> <4D6BC339-51BE-4F90-8858-9B81859858F0@alcatel-lucent.com> <042101d110e5$439e2d50$cada87f0$@ndzh.com> <7BFD3160-0576-4AC7-919B-B73FA61BBB51@icloud.com> <009a01d1110f$7117ecb0$5347c610$@ndzh.com>
To: Susan Hares <shares@ndzh.com>
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Cc: idr wg <idr@ietf.org>, jgs@bgp.nu
Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiAgSURSIGludGVyaW0gKDEwLzI2LzIwMTUpIDEwOjAw?= =?utf-8?q?am_-_11=3A30am_ET_update?=
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Hi Sue,

[Please indicate when you are speaking as IDR chair or when you are =
speaking as contributor/affiliation=E2=80=A6 i am confused]

I did a search for forwarding ID in the referenced document and i do not =
see it?

You clearly understand that draft-vandevelde-idr-flowspec-path-redirect =
and draft-li-idr-mpls-path-programming are orthogonal to each other, =
not?
=E2=80=9Cdraft-li-idr-mpls-path-programming " specifies how BGP uses =
attributes to signal a tunnel and how a tunnel is constructed through =
the network, while on the other end of the=20
spectrum draft-vandevelde-idr-flowspec-path-redirect specifies flowspec =
based traffic steering onto a redirect path and signals no tunnel =
attributes at all.

In draft-vandevelde-idr-flowspec-path-redirect the local PATH_ID table =
can be constructed by many means and is outside the scope of the =
document:

* draft-li-idr-mpls-path-programming
* manual config
* netconf/yang
* traditional routing
* voodoo=20
* etc...

The end result: redirect-to-path and draft-li-idr-mpls-path-programming =
are orthogonal to each other.

Kind Regards,
G/


> On 28 Oct 2015, at 00:30, Susan Hares <shares@ndzh.com> wrote:
>=20
> Gunter:=20
> =20
> Robin=E2=80=99s proposal is =
http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/ =
<http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/>
> =20
> See my attached comparison from the interim.  You can also download =
Robin=E2=80=99s slides from the interim.  =20
> =20
> Sue=20
> =20
> From: Idr [mailto:idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>] =
On Behalf Of Gunter Van De Velde
> Sent: Tuesday, October 27, 2015 4:12 PM
> To: Susan Hares
> Cc: idr wg; jgs@bgp.nu <mailto:jgs@bgp.nu>
> Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
> =20
> Hi Sue,
> =20
> Would you know where to find Forwarding ID described in =
draft-hao-idr-flowspec-redirect-tunnel to make assessment?=20
> There is no mentioning of this concept at all in the document? =
Alternatively, what i found is signalling of tunnel end-point =
(IPv4/IPv6) and=20
> some tunnel setup information (tunnel encap attribute and a new MPP TE =
tunnel attribute).
> =20
> Brgds,
> G/
> =20
> =20
> =20
> =20
> =20
> =20
>> On 27 Oct 2015, at 19:28, Susan Hares <shares@ndzh.com =
<mailto:shares@ndzh.com>> wrote:
>> =20
>> Gunter:=20
>> =20
>> Can you let me know the difference between the Path ID in your =
proposal and Robin=E2=80=99s Forwarding ID that is a generalized segment =
ID?=20
>> =20
>> Sue Hares
>> =20
>> From: VAN DE VELDE, Gunter (Gunter) =
[mailto:gunter.van_de_velde@alcatel-lucent.com =
<mailto:gunter.van_de_velde@alcatel-lucent.com>]=20
>> Sent: Monday, October 26, 2015 12:26 PM
>> To: Lizhenbin; Susan Hares; idr@ietf.org <mailto:idr@ietf.org>
>> Cc: jgs@bgp.nu <mailto:jgs@bgp.nu>
>> Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
>> =20
>> Hi Robin,
>> =20
>> Thanks for your note.
>> =20
>> A tunnel is not always going over shortest path. Some tunnels are TE =
tunnels and are deliberately not going over a shortest path. This is =
something that draft-rosen-idr-tunnel-encaps-00 will not help to signal =
because the tunnel-encap attribute indicates tunnel parameters used by =
the tail-end.
>> =20
>> If a redirect tunnel represents a particular redirect/steering =
service (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) =
then it does become rather complex for BGP as signalling technology =
because a tunnel relationship is a unique between 'a headend' and =E2=80=98=
a tailed' device. It seems better to leave tunnel-setup to dedicated =
tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.
>> =20
>> The draft redirect-to-PATH_ID is providing the means to signal a =
flow-based redirect/steering service, and have each recipient router =
identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable fashion.
>> =20
>> Kind Regards,
>> G/
>> =20
>> =20
>> =20
>> From:  Idr <idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>> on =
behalf of Lizhenbin <lizhenbin@huawei.com <mailto:lizhenbin@huawei.com>>
>> Date: Monday 26 October 2015 at 16:51
>> To: Susan Hares <shares@ndzh.com <mailto:shares@ndzh.com>>, =
"idr@ietf.org <mailto:idr@ietf.org>" <idr@ietf.org =
<mailto:idr@ietf.org>>
>> Cc: "jgs@bgp.nu <mailto:jgs@bgp.nu>" <jgs@bgp.nu <mailto:jgs@bgp.nu>>
>> Subject: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
>> =20
>> Hi Gunter,
>> Regarding your presentation, I have following comments:
>> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal =
tunnel setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer =
traffic to the tunnel instead of signal tunnel setup.=20
>> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the =
draft make you confused? We just hope to  just reuses the attributes of =
to specify the tunnel type to help steering=20
>> the traffic to tunnel. If this is not a good way, maybe we can define =
new attributes.
>> =20
>> =20
>> Best Regards,
>> Robin
>> =20
>> =20
>> =20
>> =20
>> =20
>> =E5=8F=91=E4=BB=B6=E4=BA=BA: Idr [mailto:idr-bounces@ietf.org =
<mailto:idr-bounces@ietf.org>] =E4=BB=A3=E8=A1=A8 Susan Hares
>> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8825=E6=97=A5=
 22:07
>> =E6=94=B6=E4=BB=B6=E4=BA=BA: idr@ietf.org <mailto:idr@ietf.org>
>> =E6=8A=84=E9=80=81: jgs@bgp.nu <mailto:jgs@bgp.nu>
>> =E4=B8=BB=E9=A2=98: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am =
ET update
>> =20
>> IDR WG members:=20
>> =20
>> Below is an updated agenda for the IDR interim on 10/26/2015.
>> =20
>> Sue=20
>> =20
>> ------------
>> IDR interim October 26, 2015=20
>> 10:00 - 11:30am=20
>> =20
>> 1. Chair's slides [10:00-10:05]
>> =20
>> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>>    speaker: Stephane Litowski =20
>>    Time: 10:05-10:15
>>    =
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset=
/ =
<https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/>
>>   =20
>> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>>    Speaker: Weiguo Hao
>>    Time: 10:15 - 10:25=20
>>    =
http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/>
>>   =20
>>   =20
>> 3. draft-vandevelde-idr-flowspec-path-redirect
>>    Speaker: Gunter Van De Velde
>>    Time: 10:25- 10:35
>>    =
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirec=
t/ =
<http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/>
>>   =20
>>   =20
>> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02=20
>>    Speaker: Weiguo Hao
>>    Duration: 10:35-10:40=20
>>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/>
>>   =20
>> =20
>> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>>    Speaker:=20
>>    Duration: 10:40-10:45=20
>>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/>
>>   =20
>> 6. draft-liang-idr-bgp-flowspec-time
>>    presenter: Jianjie You
>>    time: 10:45-10:55
>>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/>
>> =20
>> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>>    Speaker: Zhenbin Li
>>    Duration: 10:55-11:05=20
>>    =
http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/ =
<http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/>
>> =20
>> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>>    Speaker: Shunwan Zhuang
>>    Duration: 11:05 - 11:15=20
>>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/ =
<http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/>
>>   =20
>> 8.  Discussion of Flowspec drafts
>>     11:15 - 11:30am=20
>> =20
>>  Meeting Web-ex information=20
>>  Monday, October 26, 2015=20
>> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs=20
>> =20
>> webex infor:=20
>> =
https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f=
 =
<https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f>
>> =20
>> Meeting number:            644 964 970=20
>> Meeting password:         flow.in.nets
>> =20
>> =20
>> Join by phone
>> 1-877-668-4493 Call-in toll free number (US/Canada)
>> 1-650-479-3208 Call-in toll number (US/Canada)
>> Access code: 644 964 970
>> =20
>> =20
>> _______________________________________________
>> Idr mailing list
>> Idr@ietf.org <mailto:Idr@ietf.org>
>> https://www.ietf.org/mailman/listinfo/idr =
<https://www.ietf.org/mailman/listinfo/idr>
> =20
> <Hares-Discussion of Flowspec.pdf>


--Apple-Mail=_7F64ADB9-3694-4C56-8C3C-A6612A35746C
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><div class=3D"">Hi Sue,</div><div class=3D""><br =
class=3D""></div><div class=3D"">[Please indicate when you are speaking =
as IDR chair or when you are speaking as contributor/affiliation=E2=80=A6 =
i am confused]</div><div class=3D""><br class=3D""></div><div class=3D"">I=
 did a search for forwarding ID in the referenced document and i do not =
see it?</div><div class=3D""><br class=3D""></div><div class=3D"">You =
clearly understand that draft-vandevelde-idr-flowspec-path-redirect =
and&nbsp;draft-li-idr-mpls-path-programming are orthogonal to each =
other, not?</div><div class=3D"">=E2=80=9Cdraft-li-idr-mpls-path-programmi=
ng " specifies how BGP uses attributes to signal a tunnel and how a =
tunnel is constructed through the network, while on the other end of =
the&nbsp;</div><div class=3D"">spectrum =
draft-vandevelde-idr-flowspec-path-redirect specifies flowspec based =
traffic steering onto a redirect path and signals no tunnel attributes =
at all.</div><div class=3D""><br class=3D""></div><div class=3D"">In =
draft-vandevelde-idr-flowspec-path-redirect the local PATH_ID table can =
be constructed by many means and is outside the scope of the =
document:</div><div class=3D""><br class=3D""></div><div =
class=3D"">*&nbsp;draft-li-idr-mpls-path-programming</div><div =
class=3D"">* manual config</div><div class=3D"">* netconf/yang</div><div =
class=3D"">* traditional routing</div><div class=3D"">* =
voodoo&nbsp;</div><div class=3D"">* etc...</div><div class=3D""><br =
class=3D""></div><div class=3D"">The end result: redirect-to-path and =
draft-li-idr-mpls-path-programming are orthogonal to each =
other.</div><div class=3D""><br class=3D""></div><div class=3D"">Kind =
Regards,</div><div class=3D"">G/</div><div class=3D""><br =
class=3D""></div><br class=3D""><div><blockquote type=3D"cite" =
class=3D""><div class=3D"">On 28 Oct 2015, at 00:30, Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com" class=3D"">shares@ndzh.com</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><div =
class=3D"WordSection1" style=3D"page: WordSection1; font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"color: rgb(31, 73, =
125);" class=3D"">Gunter:<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"color: rgb(31, 73, 125);" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" class=3D"">Robin=E2=80=
=99s proposal is<span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming=
/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</a><o:p class=3D""></o:p></span></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" class=3D"">See my =
attached comparison from the interim.&nbsp; You can also download =
Robin=E2=80=99s slides from the interim.&nbsp; &nbsp;<o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"color: rgb(31, 73, 125);" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" class=3D"">Sue<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"color: rgb(31, 73, 125);" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div class=3D""><div =
style=3D"border-style: solid none none; border-top-color: rgb(181, 196, =
223); border-top-width: 1pt; padding: 3pt 0in 0in;" class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><b class=3D""><span style=3D"font-size: =
10pt; font-family: Tahoma, sans-serif;" class=3D"">From:</span></b><span =
style=3D"font-size: 10pt; font-family: Tahoma, sans-serif;" =
class=3D""><span class=3D"Apple-converted-space">&nbsp;</span>Idr [<a =
href=3D"mailto:idr-bounces@ietf.org" style=3D"color: purple; =
text-decoration: underline;" =
class=3D"">mailto:idr-bounces@ietf.org</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span><b class=3D"">On Behalf =
Of<span class=3D"Apple-converted-space">&nbsp;</span></b>Gunter Van De =
Velde<br class=3D""><b class=3D"">Sent:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Tuesday, October 27, 2015 =
4:12 PM<br class=3D""><b class=3D"">To:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Susan Hares<br class=3D""><b =
class=3D"">Cc:</b><span class=3D"Apple-converted-space">&nbsp;</span>idr =
wg;<span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:jgs@bgp.nu" style=3D"color: purple; text-decoration: =
underline;" class=3D"">jgs@bgp.nu</a><br class=3D""><b =
class=3D"">Subject:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D"font-size: 10pt; font-family: 'MS UI Gothic', sans-serif;" =
class=3D"">=E7=AD=94=E5=A4=8D</span><span style=3D"font-size: 10pt; =
font-family: Tahoma, sans-serif;" class=3D"">: IDR interim (10/26/2015) =
10:00am - 11:30am ET update<o:p =
class=3D""></o:p></span></div></div></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">Hi Sue,<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt; =
font-family: Times, serif;" class=3D"">Would you know where to find =
Forwarding ID described in&nbsp;<span style=3D"background-color: white; =
background-position: initial initial; background-repeat: initial =
initial;" class=3D"">draft-hao-idr-flowspec-redirect-tunnel&nbsp;to =
make&nbsp;assessment?&nbsp;</span></span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; font-family: Times, serif; =
background-color: white; background-position: initial initial; =
background-repeat: initial initial;" class=3D"">There&nbsp;is no =
mentioning of this concept at all in the document?&nbsp;</span><span =
style=3D"font-size: 10.5pt; font-family: Times, serif;" =
class=3D"">Alternatively, what i found is signalling of tunnel end-point =
(IPv4/IPv6) and&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; font-family: Times, serif;" class=3D"">some tunnel setup =
information (tunnel encap attribute and a new MPP TE tunnel =
attribute).</span><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">Brgds,<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">G/<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div><div class=3D""><blockquote =
style=3D"margin-top: 5pt; margin-bottom: 5pt;" class=3D"" =
type=3D"cite"><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D"">On 27 Oct =
2015, at 19:28, Susan Hares &lt;<a href=3D"mailto:shares@ndzh.com" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">shares@ndzh.com</a>&gt; wrote:<o:p =
class=3D""></o:p></div></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div><div class=3D""><div class=3D""><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"color: =
rgb(31, 73, 125);" class=3D"">Gunter:<span =
class=3D"Apple-converted-space">&nbsp;</span></span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"color: =
rgb(31, 73, 125);" class=3D"">Can you let me know the difference between =
the Path ID in your proposal and Robin=E2=80=99s Forwarding ID that is a =
generalized segment ID?<span =
class=3D"Apple-converted-space">&nbsp;</span></span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"color: =
rgb(31, 73, 125);" class=3D"">Sue Hares</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"border-style: solid none none; =
border-top-color: rgb(181, 196, 223); border-top-width: 1pt; padding: =
3pt 0in 0in;" class=3D""><div class=3D""><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><b class=3D""><span style=3D"font-size: 10pt; font-family: =
Tahoma, sans-serif;" class=3D"">From:</span></b><span style=3D"font-size: =
10pt; font-family: Tahoma, sans-serif;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>VAN DE VELDE, Gunter =
(Gunter) [<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">mailto:gunter.van_de_velde@alcatel-lucent.com</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span><br class=3D""><b =
class=3D"">Sent:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Monday, October 26, 2015 =
12:26 PM<br class=3D""><b class=3D"">To:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Lizhenbin; Susan =
Hares;<span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">idr@ietf.org</a><br class=3D""><b =
class=3D"">Cc:</b><span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:jgs@bgp.nu" style=3D"color: purple; text-decoration: =
underline;" class=3D"">jgs@bgp.nu</a><br class=3D""><b =
class=3D"">Subject:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D"font-size: 10pt; font-family: 'MS UI Gothic', sans-serif;" =
class=3D"">=E7=AD=94=E5=A4=8D</span><span style=3D"font-size: 10pt; =
font-family: Tahoma, sans-serif;" class=3D"">: IDR interim (10/26/2015) =
10:00am - 11:30am ET update</span><o:p =
class=3D""></o:p></div></div></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div class=3D""><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt;" class=3D"">Hi Robin,</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">Thanks for your note.</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">A tunnel is not always going =
over shortest path. Some tunnels are TE tunnels and are deliberately not =
going over a shortest path. This is something that&nbsp;<span =
style=3D"color: rgb(31, 73, 125);" =
class=3D"">draft-rosen-idr-tunnel-encaps-00&nbsp;</span>will not help to =
signal because the tunnel-encap attribute indicates tunnel parameters =
used by the tail-end.</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">If a redirect tunnel represents a particular =
redirect/steering service (better delay, less packet loss, non-SRLG, =
more BW, etc=E2=80=A6) then it does become rather complex for BGP as =
signalling technology because a tunnel relationship is a unique between =
'a headend' and =E2=80=98a tailed' device. It seems better to leave =
tunnel-setup to dedicated tunnel-setup mechanisms like PCEP, SR, =
etc=E2=80=A6.</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">The draft redirect-to-PATH_ID is providing the means to =
signal a flow-based redirect/steering service, and have each recipient =
router identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable =
fashion.</span><o:p class=3D""></o:p></div></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">Kind Regards,</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">G/</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div style=3D"border-style: solid =
none none; border-top-color: rgb(181, 196, 223); border-top-width: 1pt; =
padding: 3pt 0in 0in;" class=3D""><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><b class=3D"">From:&nbsp;</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Idr &lt;<a =
href=3D"mailto:idr-bounces@ietf.org" style=3D"color: purple; =
text-decoration: underline;" class=3D"">idr-bounces@ietf.org</a>&gt; on =
behalf of Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">lizhenbin@huawei.com</a>&gt;<br class=3D""><b =
class=3D"">Date:<span =
class=3D"Apple-converted-space">&nbsp;</span></b>Monday 26 October 2015 =
at 16:51<br class=3D""><b class=3D"">To:<span =
class=3D"Apple-converted-space">&nbsp;</span></b>Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com" style=3D"color: purple; text-decoration: =
underline;" class=3D"">shares@ndzh.com</a>&gt;, "<a =
href=3D"mailto:idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">idr@ietf.org</a>" &lt;<a =
href=3D"mailto:idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">idr@ietf.org</a>&gt;<br class=3D""><b =
class=3D"">Cc:<span class=3D"Apple-converted-space">&nbsp;</span></b>"<a =
href=3D"mailto:jgs@bgp.nu" style=3D"color: purple; text-decoration: =
underline;" class=3D"">jgs@bgp.nu</a>" &lt;<a href=3D"mailto:jgs@bgp.nu" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">jgs@bgp.nu</a>&gt;<br class=3D""><b class=3D"">Subject:<span =
class=3D"Apple-converted-space">&nbsp;</span></b>[Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//<span style=3D"font-family: =
'MS Gothic';" class=3D"">=E7=AD=94=E5=A4=8D</span>: IDR interim =
(10/26/2015) 10:00am - 11:30am ET update<o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div class=3D""><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">Hi Gunter,</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">Regarding your =
presentation, I have following comments:</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">Do you mean draft-hao-idr-flowspec-redirect-tunnel is to =
signal tunnel setup info? draft-hao-idr-flowspec-redirect-tunnel is to =
steer traffic to the tunnel instead of signal tunnel setup.<span =
class=3D"Apple-converted-space">&nbsp;</span></span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">I am not sure if the reuse of =
draft-rosen-idr-tunnel-encaps-00 in the draft make you confused? We just =
hope to &nbsp;just reuses the attributes of to specify the tunnel type =
to help steering<span =
class=3D"Apple-converted-space">&nbsp;</span></span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">the traffic to tunnel. If this is not a good way, maybe we =
can define new attributes.</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">Best Regards,</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">Robin</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"border-style: =
solid none none; border-top-color: rgb(181, 196, 223); border-top-width: =
1pt; padding: 3pt 0in 0in;" class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><b class=3D""><span lang=3D"ZH-CN" =
style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">=E5=8F=91=E4=BB=B6=E4=BA=BA</span></b><b class=3D""><span =
style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">:</span></b><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span class=3D"Apple-converted-space">&nbsp;</span>Idr=
 [<a href=3D"mailto:idr-bounces@ietf.org" style=3D"color: purple; =
text-decoration: underline;" =
class=3D"">mailto:idr-bounces@ietf.org</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span></span><b class=3D""><span =
lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">=E4=BB=A3=E8=A1=A8<span =
class=3D"Apple-converted-space">&nbsp;</span></span></b><span =
style=3D"font-size: 10pt; font-family: SimSun;" class=3D"">Susan =
Hares<br class=3D""></span><b class=3D""><span lang=3D"ZH-CN" =
style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4</span></b><b =
class=3D""><span style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">:</span></b><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>2015</span><span =
lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">=E5=B9=B4</span><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D"">10</span><span lang=3D"ZH-CN" style=3D"font-size: =
10pt; font-family: SimSun;" class=3D"">=E6=9C=88</span><span =
style=3D"font-size: 10pt; font-family: SimSun;" class=3D"">25</span><span =
lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">=E6=97=A5</span><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>22:07<br class=3D""></span><b=
 class=3D""><span lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D"">=E6=94=B6=E4=BB=B6=E4=BA=BA</span></b><b =
class=3D""><span style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">:</span></b><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">idr@ietf.org</a><br class=3D""></span><b =
class=3D""><span lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D"">=E6=8A=84=E9=80=81</span></b><b class=3D""><span =
style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">:</span></b><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:jgs@bgp.nu" style=3D"color: purple; text-decoration: =
underline;" class=3D"">jgs@bgp.nu</a><br class=3D""></span><b =
class=3D""><span lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D"">=E4=B8=BB=E9=A2=98</span></b><b class=3D""><span =
style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">:</span></b><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>[Idr] IDR interim =
(10/26/2015) 10:00am - 11:30am ET update</span><o:p =
class=3D""></o:p></div></div></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">IDR WG members:<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">Below is an updated agenda for the IDR =
interim on 10/26/2015.<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">Sue<span class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">------------<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">IDR interim October 26, 2015<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">10:00 - 11:30am<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">1. Chair's slides [10:00-10:05]<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">1. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; speaker: Stephane Litowski&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;Time: 10:05-10:15<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-inte=
rfaceset/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-i=
nterfaceset/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">2. draft-hao-idr-flowspec-redirect-tunnel-00<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker: Weiguo Hao<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Time: 10:15 - 10:25<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tu=
nnel/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect=
-tunnel/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">3. =
draft-vandevelde-idr-flowspec-path-redirect<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker: Gunter Van De Velde<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Time: 10:25- 10:35<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path=
-redirect/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-p=
ath-redirect/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">4. Draft Name: =
draft-hao-idr-flowspec-nvo3-02<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;Speaker: Weiguo Hao<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Duration: 10:35-10:40<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a=
><o:p class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">5. =
draft-liang-idr-bgp-flowspec-label-01.txt.<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker:<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;Duration: 10:40-10:45<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label=
/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-la=
bel/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">6. draft-liang-idr-bgp-flowspec-time<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; presenter: Jianjie You<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; time: 10:45-10:55<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/=
" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-ti=
me/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">7. Draft Name: draft-li-idr-mpls-path-programming-02<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker: Zhenbin Li<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Duration: 10:55-11:05<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming=
/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">7. Draft Name: draft-li-idr-flowspec-rpd-01<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker: Shunwan Zhuang<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Duration: 11:05 - 11:15<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/</a><=
o:p class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">8.&nbsp; Discussion of Flowspec drafts<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp; 11:15 - 11:30am<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;Meeting Web-ex information<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;Monday, October 26, 2015<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">10:00 am&nbsp; |&nbsp; Eastern Daylight Time (New York, =
GMT-04:00)&nbsp; |&nbsp; 2 hrs<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">webex infor:<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><a =
href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c=
3ff3143f" style=3D"color: purple; text-decoration: underline;" =
class=3D"">https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e5=
99c3ff3143f</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">Meeting number: =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 964 =
970<span class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">Meeting =
password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
flow.in.nets<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">Join by phone<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">1-877-668-4493 Call-in toll free number (US/Canada)<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">1-650-479-3208 Call-in toll number (US/Canada)<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">Access code: 644 964 970<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div></div></div></div><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 12pt; =
font-family: 'Times New Roman', serif;" =
class=3D"">_______________________________________________<br =
class=3D"">Idr mailing list<br class=3D""><a href=3D"mailto:Idr@ietf.org" =
style=3D"color: purple; text-decoration: underline;" =
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purple; text-decoration: underline;" =
class=3D"">https://www.ietf.org/mailman/listinfo/idr</a><o:p =
class=3D""></o:p></span></div></div></blockquote></div><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 12pt; =
font-family: 'Times New Roman', serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div></div><span =
id=3D"cid:16E26B80-C6A2-40D2-A200-CA1B27489C6C@home">&lt;Hares-Discussion =
of Flowspec.pdf&gt;</span></div></blockquote></div><br =
class=3D""></body></html>=

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Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiAgSURSIGludGVyaW0gKDEwLzI2LzIwMTUpIDEwOjAw?= =?utf-8?q?am_-_11=3A30am_ET_update?=
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Gunter:=20

=20

My apologies =E2=80=93 since the slide I referenced was the =
chair=E2=80=99s discussion generating slide =E2=80=93 I did not put <IDR =
chair hat on> - I should have.=20

=20

<chair hat on>=20

My chair=E2=80=99s discussion was to inspire conversation on you =
perception of the path-id versus the draft-li-mpls-path-programming.=20

=20

I was looking to solicit the following comment from you. =20

=20

=E2=80=9CYou clearly understand that =
draft-vandevelde-idr-flowspec-path-redirect and =
draft-li-idr-mpls-path-programming are orthogonal to each other, =
not?=E2=80=9D=20

=20

My job as chair is to get people talking about their view of the other =
proposal.=20

<chair hat off>=20

=20

The issue is that =E2=80=9Cpath-id=E2=80=9D and your concepts of paths =
is similar to many of the MPLS and segment routing path ids.   =
Draft-li-idr-mpls-path-programming seeks to generalize segment routing =
(see Robin=E2=80=99s slides) using a variety of BGP and MPLS.   =20

=20

As Lucy=E2=80=99s slides pointed out =E2=80=93 we have an IP and non-IP =
traffic.  My understanding is that your path-id is for just IP traffic.  =
You comment below would suggest both.=20

=20

Best wishes,=20

Sue=20

=20

From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Gunter Van De Velde
Sent: Wednesday, October 28, 2015 5:38 AM
To: Susan Hares
Cc: idr wg; jgs@bgp.nu
Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update

=20

Hi Sue,

=20

[Please indicate when you are speaking as IDR chair or when you are =
speaking as contributor/affiliation=E2=80=A6 i am confused]

=20

I did a search for forwarding ID in the referenced document and i do not =
see it?

=20

You clearly understand that draft-vandevelde-idr-flowspec-path-redirect =
and draft-li-idr-mpls-path-programming are orthogonal to each other, =
not?

=E2=80=9Cdraft-li-idr-mpls-path-programming " specifies how BGP uses =
attributes to signal a tunnel and how a tunnel is constructed through =
the network, while on the other end of the=20

spectrum draft-vandevelde-idr-flowspec-path-redirect specifies flowspec =
based traffic steering onto a redirect path and signals no tunnel =
attributes at all.

=20

In draft-vandevelde-idr-flowspec-path-redirect the local PATH_ID table =
can be constructed by many means and is outside the scope of the =
document:

=20

* draft-li-idr-mpls-path-programming

* manual config

* netconf/yang

* traditional routing

* voodoo=20

* etc...

=20

The end result: redirect-to-path and draft-li-idr-mpls-path-programming =
are orthogonal to each other.

=20

Kind Regards,

G/

=20

=20

On 28 Oct 2015, at 00:30, Susan Hares <shares@ndzh.com> wrote:

=20

Gunter:=20

=20

Robin=E2=80=99s proposal is  =
<http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/> =
http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/

=20

See my attached comparison from the interim.  You can also download =
Robin=E2=80=99s slides from the interim.  =20

=20

Sue=20

=20

From: Idr [ <mailto:idr-bounces@ietf.org> mailto:idr-bounces@ietf.org] =
On Behalf Of Gunter Van De Velde
Sent: Tuesday, October 27, 2015 4:12 PM
To: Susan Hares
Cc: idr wg;  <mailto:jgs@bgp.nu> jgs@bgp.nu
Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update

=20

Hi Sue,

=20

Would you know where to find Forwarding ID described in =
draft-hao-idr-flowspec-redirect-tunnel to make assessment?=20

There is no mentioning of this concept at all in the document? =
Alternatively, what i found is signalling of tunnel end-point =
(IPv4/IPv6) and=20

some tunnel setup information (tunnel encap attribute and a new MPP TE =
tunnel attribute).

=20

Brgds,

G/

=20

=20

=20

=20

=20

=20

On 27 Oct 2015, at 19:28, Susan Hares < <mailto:shares@ndzh.com> =
shares@ndzh.com> wrote:

=20

Gunter:=20

=20

Can you let me know the difference between the Path ID in your proposal =
and Robin=E2=80=99s Forwarding ID that is a generalized segment ID?=20

=20

Sue Hares

=20

From: VAN DE VELDE, Gunter (Gunter) [ =
<mailto:gunter.van_de_velde@alcatel-lucent.com> =
mailto:gunter.van_de_velde@alcatel-lucent.com]=20
Sent: Monday, October 26, 2015 12:26 PM
To: Lizhenbin; Susan Hares;  <mailto:idr@ietf.org> idr@ietf.org
Cc:  <mailto:jgs@bgp.nu> jgs@bgp.nu
Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update

=20

Hi Robin,

=20

Thanks for your note.

=20

A tunnel is not always going over shortest path. Some tunnels are TE =
tunnels and are deliberately not going over a shortest path. This is =
something that draft-rosen-idr-tunnel-encaps-00 will not help to signal =
because the tunnel-encap attribute indicates tunnel parameters used by =
the tail-end.

=20

If a redirect tunnel represents a particular redirect/steering service =
(better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then =
it does become rather complex for BGP as signalling technology because a =
tunnel relationship is a unique between 'a headend' and =E2=80=98a =
tailed' device. It seems better to leave tunnel-setup to dedicated =
tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.

=20

The draft redirect-to-PATH_ID is providing the means to signal a =
flow-based redirect/steering service, and have each recipient router =
identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable fashion.

=20

Kind Regards,

G/

=20

=20

=20

From:  Idr < <mailto:idr-bounces@ietf.org> idr-bounces@ietf.org> on =
behalf of Lizhenbin < <mailto:lizhenbin@huawei.com> =
lizhenbin@huawei.com>
Date: Monday 26 October 2015 at 16:51
To: Susan Hares < <mailto:shares@ndzh.com> shares@ndzh.com>, " =
<mailto:idr@ietf.org> idr@ietf.org" < <mailto:idr@ietf.org> =
idr@ietf.org>
Cc: " <mailto:jgs@bgp.nu> jgs@bgp.nu" < <mailto:jgs@bgp.nu> jgs@bgp.nu>
Subject: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update

=20

Hi Gunter,

Regarding your presentation, I have following comments:

Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel =
setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic =
to the tunnel instead of signal tunnel setup.=20

I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the =
draft make you confused? We just hope to  just reuses the attributes of =
to specify the tunnel type to help steering=20

the traffic to tunnel. If this is not a good way, maybe we can define =
new attributes.

=20

=20

Best Regards,

Robin

=20

=20

=20

=20

=20

=E5=8F=91=E4=BB=B6=E4=BA=BA: Idr [ <mailto:idr-bounces@ietf.org> =
mailto:idr-bounces@ietf.org] =E4=BB=A3=E8=A1=A8 Susan Hares
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: =
2015=E5=B9=B410=E6=9C=8825=E6=97=A5 22:07
=E6=94=B6=E4=BB=B6=E4=BA=BA:  <mailto:idr@ietf.org> idr@ietf.org
=E6=8A=84=E9=80=81:  <mailto:jgs@bgp.nu> jgs@bgp.nu
=E4=B8=BB=E9=A2=98: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET =
update

=20

IDR WG members:=20

=20

Below is an updated agenda for the IDR interim on 10/26/2015.

=20

Sue=20

=20

------------

IDR interim October 26, 2015=20

10:00 - 11:30am=20

=20

1. Chair's slides [10:00-10:05]

=20

1. draft-litkowski-idr-flowspec-interfaceset-01.txt

   speaker: Stephane Litowski =20

   Time: 10:05-10:15

    =
<https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaces=
et/> =
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/

  =20

2. draft-hao-idr-flowspec-redirect-tunnel-00

   Speaker: Weiguo Hao

   Time: 10:15 - 10:25=20

    =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/>=
 http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/

  =20

  =20

3. draft-vandevelde-idr-flowspec-path-redirect

   Speaker: Gunter Van De Velde

   Time: 10:25- 10:35

    =
<http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redir=
ect/> =
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/

  =20

  =20

4. Draft Name: draft-hao-idr-flowspec-nvo3-02=20

   Speaker: Weiguo Hao

   Duration: 10:35-10:40=20

    <http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/> =
http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/

  =20

=20

5. draft-liang-idr-bgp-flowspec-label-01.txt.

   Speaker:=20

   Duration: 10:40-10:45=20

   <http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/> =
http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/

  =20

6. draft-liang-idr-bgp-flowspec-time

   presenter: Jianjie You

   time: 10:45-10:55

    <http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/> =
http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/

=20

7. Draft Name: draft-li-idr-mpls-path-programming-02

   Speaker: Zhenbin Li

   Duration: 10:55-11:05=20

    =
<http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/> =
http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/

=20

7. Draft Name: draft-li-idr-flowspec-rpd-01

   Speaker: Shunwan Zhuang

   Duration: 11:05 - 11:15=20

    <http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/> =
http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/

  =20

8.  Discussion of Flowspec drafts

    11:15 - 11:30am=20

=20

 Meeting Web-ex information=20

 Monday, October 26, 2015=20

10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs=20

=20

webex infor:=20

 =
<https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff314=
3f> =
https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f

=20

Meeting number:            644 964 970=20

Meeting password:         flow.in.nets

=20

=20

Join by phone

1-877-668-4493 Call-in toll free number (US/Canada)

1-650-479-3208 Call-in toll number (US/Canada)

Access code: 644 964 970

=20

=20

_______________________________________________
Idr mailing list
 <mailto:Idr@ietf.org> Idr@ietf.org
 <https://www.ietf.org/mailman/listinfo/idr> =
https://www.ietf.org/mailman/listinfo/idr

=20

<Hares-Discussion of Flowspec.pdf>

=20


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Gunter: <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>My apologies =E2=80=93 since the slide I referenced was the =
chair=E2=80=99s discussion generating slide =E2=80=93 I did not put =
&lt;IDR chair hat on&gt; - I should have. <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>=C2=A0<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&lt;chair hat on&gt; <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>My chair=E2=80=99s discussion was to inspire conversation on you =
perception of the path-id versus the draft-li-mpls-path-programming. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>I was looking to solicit the following comment from you. =
=C2=A0<o:p></o:p></span></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>=E2=80=9CYou clearly understand that =
draft-vandevelde-idr-flowspec-path-redirect =
and&nbsp;draft-li-idr-mpls-path-programming are orthogonal to each =
other, not?=E2=80=9D <o:p></o:p></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>My job as chair is to get people talking about their view of the =
other proposal. <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&lt;chair hat off&gt; <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>The issue is that =E2=80=9Cpath-id=E2=80=9D and your concepts of =
paths is similar to many of the MPLS and segment routing path ids.=C2=A0 =
=C2=A0Draft-li-idr-mpls-path-programming seeks to generalize segment =
routing (see Robin=E2=80=99s slides) using a variety of BGP and MPLS. =
=C2=A0=C2=A0=C2=A0<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>As Lucy=E2=80=99s slides pointed out =E2=80=93 we have an IP and =
non-IP traffic.=C2=A0 My understanding is that your path-id is for just =
IP traffic.=C2=A0 You comment below would suggest both. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Best wishes, <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Sue <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Idr [mailto:idr-bounces@ietf.org] <b>On Behalf Of </b>Gunter Van De =
Velde<br><b>Sent:</b> Wednesday, October 28, 2015 5:38 AM<br><b>To:</b> =
Susan Hares<br><b>Cc:</b> idr wg; jgs@bgp.nu<br><b>Subject:</b> Re: =
[Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D'font-size:10.0pt;font-family:"MS UI =
Gothic","sans-serif"'>=E7=AD=94=E5=A4=8D</span><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>: IDR =
interim (10/26/2015) 10:00am - 11:30am ET =
update<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal>Hi =
Sue,<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>[Please indicate when you are speaking as IDR chair or =
when you are speaking as contributor/affiliation=E2=80=A6 i am =
confused]<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p class=3DMsoNormal>I =
did a search for forwarding ID in the referenced document and i do not =
see it?<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>You clearly understand that =
draft-vandevelde-idr-flowspec-path-redirect =
and&nbsp;draft-li-idr-mpls-path-programming are orthogonal to each =
other, not?<o:p></o:p></p></div><div><p =
class=3DMsoNormal>=E2=80=9Cdraft-li-idr-mpls-path-programming &quot; =
specifies how BGP uses attributes to signal a tunnel and how a tunnel is =
constructed through the network, while on the other end of =
the&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal>spectrum =
draft-vandevelde-idr-flowspec-path-redirect specifies flowspec based =
traffic steering onto a redirect path and signals no tunnel attributes =
at all.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>In draft-vandevelde-idr-flowspec-path-redirect the =
local PATH_ID table can be constructed by many means and is outside the =
scope of the document:<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>*&nbsp;draft-li-idr-mpls-path-programming<o:p></o:p></p=
></div><div><p class=3DMsoNormal>* manual =
config<o:p></o:p></p></div><div><p class=3DMsoNormal>* =
netconf/yang<o:p></o:p></p></div><div><p class=3DMsoNormal>* traditional =
routing<o:p></o:p></p></div><div><p class=3DMsoNormal>* =
voodoo&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal>* =
etc...<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>The end result: redirect-to-path and =
draft-li-idr-mpls-path-programming are orthogonal to each =
other.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Kind Regards,<o:p></o:p></p></div><div><p =
class=3DMsoNormal>G/<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p =
class=3DMsoNormal>On 28 Oct 2015, at 00:30, Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com">shares@ndzh.com</a>&gt; =
wrote:<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Gunter:<span class=3Dapple-converted-space>&nbsp;</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Robin=E2=80=99s proposal is<span =
class=3Dapple-converted-space>&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programmin=
g/"><span =
style=3D'color:purple'>http://datatracker.ietf.org/doc/draft-li-idr-mpls-=
path-programming/</span></a></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>See my attached comparison from the interim.&nbsp; You can also =
download Robin=E2=80=99s slides from the interim.&nbsp; =
&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Sue<span class=3Dapple-converted-space>&nbsp;</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0in 0in 0in'><div><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span class=3Dapple-converted-space><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>&nbsp;</span=
></span><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Idr [<a =
href=3D"mailto:idr-bounces@ietf.org"><span =
style=3D'color:purple'>mailto:idr-bounces@ietf.org</span></a>]<span =
class=3Dapple-converted-space>&nbsp;</span><b>On Behalf Of<span =
class=3Dapple-converted-space>&nbsp;</span></b>Gunter Van De =
Velde<br><b>Sent:</b><span =
class=3Dapple-converted-space>&nbsp;</span>Tuesday, October 27, 2015 =
4:12 PM<br><b>To:</b><span =
class=3Dapple-converted-space>&nbsp;</span>Susan =
Hares<br><b>Cc:</b><span class=3Dapple-converted-space>&nbsp;</span>idr =
wg;<span class=3Dapple-converted-space>&nbsp;</span><a =
href=3D"mailto:jgs@bgp.nu"><span =
style=3D'color:purple'>jgs@bgp.nu</span></a><br><b>Subject:</b><span =
class=3Dapple-converted-space>&nbsp;</span>Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D'font-size:10.0pt;font-family:"MS UI =
Gothic","sans-serif"'>=E7=AD=94=E5=A4=8D</span><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>Hi =
Sue,<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Times","serif"'>Would you know =
where to find Forwarding ID described in&nbsp;<span =
style=3D'background:white'>draft-hao-idr-flowspec-redirect-tunnel&nbsp;to=
 make&nbsp;assessment?&nbsp;</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Times","serif";background:white'>T=
here&nbsp;is no mentioning of this concept at all in the =
document?&nbsp;</span><span =
style=3D'font-size:10.5pt;font-family:"Times","serif"'>Alternatively, =
what i found is signalling of tunnel end-point (IPv4/IPv6) =
and&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Times","serif"'>some tunnel setup =
information (tunnel encap attribute and a new MPP TE tunnel =
attribute).</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>Brgds,<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>G/<o:p></o:=
p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div><div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>On 27 Oct =
2015, at 19:28, Susan Hares &lt;<a href=3D"mailto:shares@ndzh.com"><span =
style=3D'color:purple'>shares@ndzh.com</span></a>&gt; =
wrote:<o:p></o:p></span></p></div></div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div><div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Gunter:<span class=3Dapple-converted-space>&nbsp;</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Can you let me know the difference between the Path ID in your =
proposal and Robin=E2=80=99s Forwarding ID that is a generalized segment =
ID?<span class=3Dapple-converted-space>&nbsp;</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Sue Hares</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div style=3D'border:none;border-top:solid =
#B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><div><div><p =
class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span class=3Dapple-converted-space><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>&nbsp;</span=
></span><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>VAN DE =
VELDE, Gunter (Gunter) [<a =
href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com"><span =
style=3D'color:purple'>mailto:gunter.van_de_velde@alcatel-lucent.com</spa=
n></a>]<span =
class=3Dapple-converted-space>&nbsp;</span><br><b>Sent:</b><span =
class=3Dapple-converted-space>&nbsp;</span>Monday, October 26, 2015 =
12:26 PM<br><b>To:</b><span =
class=3Dapple-converted-space>&nbsp;</span>Lizhenbin; Susan Hares;<span =
class=3Dapple-converted-space>&nbsp;</span><a =
href=3D"mailto:idr@ietf.org"><span =
style=3D'color:purple'>idr@ietf.org</span></a><br><b>Cc:</b><span =
class=3Dapple-converted-space>&nbsp;</span><a =
href=3D"mailto:jgs@bgp.nu"><span =
style=3D'color:purple'>jgs@bgp.nu</span></a><br><b>Subject:</b><span =
class=3Dapple-converted-space>&nbsp;</span>Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D'font-size:10.0pt;font-family:"MS UI =
Gothic","sans-serif"'>=E7=AD=94=E5=A4=8D</span><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>Hi =
Robin,</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>Thanks for =
your note.</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>A tunnel =
is not always going over shortest path. Some tunnels are TE tunnels and =
are deliberately not going over a shortest path. This is something =
that&nbsp;<span =
style=3D'color:#1F497D'>draft-rosen-idr-tunnel-encaps-00&nbsp;</span>will=
 not help to signal because the tunnel-encap attribute indicates tunnel =
parameters used by the tail-end.</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>If a =
redirect tunnel represents a particular redirect/steering service =
(better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then =
it does become rather complex for BGP as signalling technology because a =
tunnel relationship is a unique between 'a headend' and =E2=80=98a =
tailed' device. It seems better to leave tunnel-setup to dedicated =
tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>The draft =
redirect-to-PATH_ID is providing the means to signal a flow-based =
redirect/steering service, and have each recipient router identify using =
local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: &quot;It signals a policy=E2=80=9D in reliable =
fashion.</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div></div><div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>Kind =
Regards,</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>G/</span><s=
pan =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div style=3D'border:none;border-top:solid =
#B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><div><div><p =
class=3DMsoNormal><b><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>From:&nbsp;=
</span></b><span class=3Dapple-converted-space><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>Idr &lt;<a =
href=3D"mailto:idr-bounces@ietf.org"><span =
style=3D'color:purple'>idr-bounces@ietf.org</span></a>&gt; on behalf of =
Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com"><span =
style=3D'color:purple'>lizhenbin@huawei.com</span></a>&gt;<br><b>Date:<sp=
an class=3Dapple-converted-space>&nbsp;</span></b>Monday 26 October 2015 =
at 16:51<br><b>To:<span =
class=3Dapple-converted-space>&nbsp;</span></b>Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com"><span =
style=3D'color:purple'>shares@ndzh.com</span></a>&gt;, &quot;<a =
href=3D"mailto:idr@ietf.org"><span =
style=3D'color:purple'>idr@ietf.org</span></a>&quot; &lt;<a =
href=3D"mailto:idr@ietf.org"><span =
style=3D'color:purple'>idr@ietf.org</span></a>&gt;<br><b>Cc:<span =
class=3Dapple-converted-space>&nbsp;</span></b>&quot;<a =
href=3D"mailto:jgs@bgp.nu"><span =
style=3D'color:purple'>jgs@bgp.nu</span></a>&quot; &lt;<a =
href=3D"mailto:jgs@bgp.nu"><span =
style=3D'color:purple'>jgs@bgp.nu</span></a>&gt;<br><b>Subject:<span =
class=3Dapple-converted-space>&nbsp;</span></b>[Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D'font-size:11.0pt;font-family:"MS =
Gothic"'>=E7=AD=94=E5=A4=8D</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>: IDR =
interim (10/26/2015) 10:00am - 11:30am ET =
update<o:p></o:p></span></p></div></div></div><div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div><div><div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hi Gunter,</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Regarding your presentation, I have following comments:</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal =
tunnel setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer =
traffic to the tunnel instead of signal tunnel setup.<span =
class=3Dapple-converted-space>&nbsp;</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the =
draft make you confused? We just hope to &nbsp;just reuses the =
attributes of to specify the tunnel type to help steering<span =
class=3Dapple-converted-space>&nbsp;</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>the traffic to tunnel. If this is not a good way, maybe we can define =
new attributes.</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Best Regards,</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Robin</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div><div><div style=3D'border:none;border-top:solid =
#B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><div><div><p =
class=3DMsoNormal><b><span lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E5=8F=91=E4=BB=B6=E4=BA=BA</span></b><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>:</span></b><span =
class=3Dapple-converted-space><span =
style=3D'font-size:10.0pt;font-family:SimSun'>&nbsp;</span></span><span =
style=3D'font-size:10.0pt;font-family:SimSun'>Idr [<a =
href=3D"mailto:idr-bounces@ietf.org"><span =
style=3D'color:purple'>mailto:idr-bounces@ietf.org</span></a>]<span =
class=3Dapple-converted-space>&nbsp;</span></span><b><span lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E4=BB=A3=E8=A1=A8</span></b><span =
class=3Dapple-converted-space><b><span =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
&nbsp;</span></b></span><span =
style=3D'font-size:10.0pt;font-family:SimSun'>Susan =
Hares<br></span><b><span lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4</span></b><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>:</span></b><span =
class=3Dapple-converted-space><span =
style=3D'font-size:10.0pt;font-family:SimSun'>&nbsp;</span></span><span =
style=3D'font-size:10.0pt;font-family:SimSun'>2015</span><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E5=B9=B4</span><span =
style=3D'font-size:10.0pt;font-family:SimSun'>10</span><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E6=9C=88</span><span =
style=3D'font-size:10.0pt;font-family:SimSun'>25</span><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E6=97=A5</span><span class=3Dapple-converted-space><span =
style=3D'font-size:10.0pt;font-family:SimSun'>&nbsp;</span></span><span =
style=3D'font-size:10.0pt;font-family:SimSun'>22:07<br></span><b><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E6=94=B6=E4=BB=B6=E4=BA=BA</span></b><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>:</span></b><span =
class=3Dapple-converted-space><span =
style=3D'font-size:10.0pt;font-family:SimSun'>&nbsp;</span></span><span =
style=3D'font-size:10.0pt;font-family:SimSun'><a =
href=3D"mailto:idr@ietf.org"><span =
style=3D'color:purple'>idr@ietf.org</span></a><br></span><b><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E6=8A=84=E9=80=81</span></b><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>:</span></b><span =
class=3Dapple-converted-space><span =
style=3D'font-size:10.0pt;font-family:SimSun'>&nbsp;</span></span><span =
style=3D'font-size:10.0pt;font-family:SimSun'><a =
href=3D"mailto:jgs@bgp.nu"><span =
style=3D'color:purple'>jgs@bgp.nu</span></a><br></span><b><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;font-family:SimSun;mso-fareast-language:ZH-CN'>=
=E4=B8=BB=E9=A2=98</span></b><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>:</span></b><span =
class=3Dapple-converted-space><span =
style=3D'font-size:10.0pt;font-family:SimSun'>&nbsp;</span></span><span =
style=3D'font-size:10.0pt;font-family:SimSun'>[Idr] IDR interim =
(10/26/2015) 10:00am - 11:30am ET update</span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>IDR WG =
members:<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>Below is =
an updated agenda for the IDR interim on =
10/26/2015.<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>Sue<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>-----------=
-<o:p></o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>IDR =
interim October 26, 2015<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>10:00 - =
11:30am<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>1. Chair's =
slides [10:00-10:05]<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>1. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p></o:p></span></p></d=
iv></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; speaker: Stephane Litowski&nbsp;<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;&nbsp;Time: 10:05-10:15<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;<span class=3Dapple-converted-space>&nbsp;</span><a =
href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-int=
erfaceset/"><span =
style=3D'color:purple'>https://datatracker.ietf.org/doc/draft-litkowski-i=
dr-flowspec-interfaceset/</span></a><o:p></o:p></span></p></div></div><di=
v><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>2. =
draft-hao-idr-flowspec-redirect-tunnel-00<o:p></o:p></span></p></div></di=
v><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; Speaker: Weiguo Hao<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; Time: 10:15 - 10:25<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-t=
unnel/"><span =
style=3D'color:purple'>http://datatracker.ietf.org/doc/draft-hao-idr-flow=
spec-redirect-tunnel/</span></a><o:p></o:p></span></p></div></div><div><d=
iv><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;&nbsp;<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>3. =
draft-vandevelde-idr-flowspec-path-redirect<o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; Speaker: Gunter Van De =
Velde<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; Time: 10:25- 10:35<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;<span class=3Dapple-converted-space>&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-pat=
h-redirect/"><span =
style=3D'color:purple'>http://datatracker.ietf.org/doc/draft-vandevelde-i=
dr-flowspec-path-redirect/</span></a><o:p></o:p></span></p></div></div><d=
iv><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;&nbsp;<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>4. Draft =
Name: draft-hao-idr-flowspec-nvo3-02<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;&nbsp;Speaker: Weiguo Hao<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; Duration: 10:35-10:40<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/"><sp=
an =
style=3D'color:purple'>http://datatracker.ietf.org/doc/draft-hao-idr-flow=
spec-nvo3/</span></a><o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>5. =
draft-liang-idr-bgp-flowspec-label-01.txt.<o:p></o:p></span></p></div></d=
iv><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; Speaker:<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;&nbsp;Duration: 10:40-10:45<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;<a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-labe=
l/"><span =
style=3D'color:purple'>http://datatracker.ietf.org/doc/draft-liang-idr-bg=
p-flowspec-label/</span></a><o:p></o:p></span></p></div></div><div><div><=
p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>6. =
draft-liang-idr-bgp-flowspec-time<o:p></o:p></span></p></div></div><div><=
div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; presenter: Jianjie You<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; time: 10:45-10:55<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;<span class=3Dapple-converted-space>&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time=
/"><span =
style=3D'color:purple'>http://datatracker.ietf.org/doc/draft-liang-idr-bg=
p-flowspec-time/</span></a><o:p></o:p></span></p></div></div><div><div><p=
 class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>7. Draft =
Name: =
draft-li-idr-mpls-path-programming-02<o:p></o:p></span></p></div></div><d=
iv><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; Speaker: Zhenbin Li<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; Duration: 10:55-11:05<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programmin=
g/"><span =
style=3D'color:purple'>http://datatracker.ietf.org/doc/draft-li-idr-mpls-=
path-programming/</span></a><o:p></o:p></span></p></div></div><div><div><=
p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>7. Draft =
Name: =
draft-li-idr-flowspec-rpd-01<o:p></o:p></span></p></div></div><div><div><=
p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; Speaker: Shunwan Zhuang<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
; Duration: 11:05 - 11:15<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/"><span=
 =
style=3D'color:purple'>http://datatracker.ietf.org/doc/draft-li-idr-flows=
pec-rpd/</span></a><o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>8.&nbsp; =
Discussion of Flowspec =
drafts<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;&nbsp=
;&nbsp; 11:15 - 11:30am<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;Meeti=
ng Web-ex information<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;Monda=
y, October 26, 2015<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>10:00 =
am&nbsp; |&nbsp; Eastern Daylight Time (New York, GMT-04:00)&nbsp; =
|&nbsp; 2 hrs<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>webex =
infor:<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><a =
href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599=
c3ff3143f"><span =
style=3D'color:purple'>https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241=
d3adf214033e599c3ff3143f</span></a><o:p></o:p></span></p></div></div><div=
><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>Meeting =
number: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 =
964 970<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div></=
div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>Meeting =
password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
flow.in.nets<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>Join by =
phone<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>1-877-668-4=
493 Call-in toll free number =
(US/Canada)<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>1-650-479-3=
208 Call-in toll number =
(US/Canada)<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>Access =
code: 644 964 970<o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div></div></div></div></div><div><p =
class=3DMsoNormal>_______________________________________________<br>Idr =
mailing list<br><a href=3D"mailto:Idr@ietf.org"><span =
style=3D'color:purple'>Idr@ietf.org</span></a><br><a =
href=3D"https://www.ietf.org/mailman/listinfo/idr"><span =
style=3D'color:purple'>https://www.ietf.org/mailman/listinfo/idr</span></=
a><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div></div></blockquote></div><div><p =
class=3DMsoNormal>&nbsp;<span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><p class=3DMsoNormal>&lt;Hares-Discussion of =
Flowspec.pdf&gt;<o:p></o:p></p></div></blockquote></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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From: Gunter Van De Velde <guntervandeveldecc@icloud.com>
In-reply-to: <009a01d1110f$7117ecb0$5347c610$@ndzh.com>
Date: Wed, 28 Oct 2015 11:06:26 +0100
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References: <009b01d10f2e$5cc28820$16479860$@ndzh.com> <5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5C638@nkgeml506-mbx.china.huawei.com> <4D6BC339-51BE-4F90-8858-9B81859858F0@alcatel-lucent.com> <042101d110e5$439e2d50$cada87f0$@ndzh.com> <7BFD3160-0576-4AC7-919B-B73FA61BBB51@icloud.com> <009a01d1110f$7117ecb0$5347c610$@ndzh.com>
To: Susan Hares <shares@ndzh.com>
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Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiAgSURSIGludGVyaW0gKDEwLzI2LzIwMTUpIDEwOjAw?= =?utf-8?q?am_-_11=3A30am_ET_update?=
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Many thanks for the table, due to the extra context i understand better =
how this table should be consumed and i realise that=20
the embedded comparison has a tiny mistake, resulting in the unlucky =
consequence it provides mayor misleadings regarding=20
traffic-steering-into-a-tunnel proposals.

It really makes no technical sense to classify =
draft-vandevelde-idr-flowspec-path-redirect together with =
draft-li-idr-mpls-path-programming-02 as they are totally orthogonal to =
each other.

The better bucket for draft-vandevelde-idr-flowspec-path-redirect would =
be:

Traffic steering (or even your classification for =E2=80=98tunnels=E2=80=99=
 seems more appropriate)
  draft-vandevelde-idr-flowspec-path-redirect
  draft-hao-idr-flowspec-redirect-tunnel

Both of these drafts use flowspec to steer traffic into a tunnel (either =
IP or something else).
In draft-hao-idr-flowspec-redirect-tunnel the steering-to-tunnel info =
and tunnel construct info is signalled together with the flowspec NLRI =
(e.g. additional attributes (MPP or encap-attribute)).
In draft draft-vandevelde-idr-flowspec-path-redirect flowspec simply =
signals a redirect PATH_ID used as meta-data to identify a locallised =
tunnel or redirect construct in a localised PATH_ID table.=20
This process allows that a tunnel construct is completely decoupled from =
flowspec signalling (there are many ways to construct this local table: =
draft-li-idr-mpls-path-programming, encap-attribute, manual config, =
etc=E2=80=A6).

Brgds,
G/



> On 28 Oct 2015, at 00:30, Susan Hares <shares@ndzh.com> wrote:
>=20
> Gunter:=20
> =20
> Robin=E2=80=99s proposal is =
http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/ =
<http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/>
> =20
> See my attached comparison from the interim.  You can also download =
Robin=E2=80=99s slides from the interim.  =20
> =20
> Sue=20
> =20
> From: Idr [mailto:idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>] =
On Behalf Of Gunter Van De Velde
> Sent: Tuesday, October 27, 2015 4:12 PM
> To: Susan Hares
> Cc: idr wg; jgs@bgp.nu <mailto:jgs@bgp.nu>
> Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
> =20
> Hi Sue,
> =20
> Would you know where to find Forwarding ID described in =
draft-hao-idr-flowspec-redirect-tunnel to make assessment?=20
> There is no mentioning of this concept at all in the document? =
Alternatively, what i found is signalling of tunnel end-point =
(IPv4/IPv6) and=20
> some tunnel setup information (tunnel encap attribute and a new MPP TE =
tunnel attribute).
> =20
> Brgds,
> G/
> =20
> =20
> =20
> =20
> =20
> =20
>> On 27 Oct 2015, at 19:28, Susan Hares <shares@ndzh.com =
<mailto:shares@ndzh.com>> wrote:
>> =20
>> Gunter:=20
>> =20
>> Can you let me know the difference between the Path ID in your =
proposal and Robin=E2=80=99s Forwarding ID that is a generalized segment =
ID?=20
>> =20
>> Sue Hares
>> =20
>> From: VAN DE VELDE, Gunter (Gunter) =
[mailto:gunter.van_de_velde@alcatel-lucent.com =
<mailto:gunter.van_de_velde@alcatel-lucent.com>]=20
>> Sent: Monday, October 26, 2015 12:26 PM
>> To: Lizhenbin; Susan Hares; idr@ietf.org <mailto:idr@ietf.org>
>> Cc: jgs@bgp.nu <mailto:jgs@bgp.nu>
>> Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
>> =20
>> Hi Robin,
>> =20
>> Thanks for your note.
>> =20
>> A tunnel is not always going over shortest path. Some tunnels are TE =
tunnels and are deliberately not going over a shortest path. This is =
something that draft-rosen-idr-tunnel-encaps-00 will not help to signal =
because the tunnel-encap attribute indicates tunnel parameters used by =
the tail-end.
>> =20
>> If a redirect tunnel represents a particular redirect/steering =
service (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) =
then it does become rather complex for BGP as signalling technology =
because a tunnel relationship is a unique between 'a headend' and =E2=80=98=
a tailed' device. It seems better to leave tunnel-setup to dedicated =
tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.
>> =20
>> The draft redirect-to-PATH_ID is providing the means to signal a =
flow-based redirect/steering service, and have each recipient router =
identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable fashion.
>> =20
>> Kind Regards,
>> G/
>> =20
>> =20
>> =20
>> From:  Idr <idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>> on =
behalf of Lizhenbin <lizhenbin@huawei.com <mailto:lizhenbin@huawei.com>>
>> Date: Monday 26 October 2015 at 16:51
>> To: Susan Hares <shares@ndzh.com <mailto:shares@ndzh.com>>, =
"idr@ietf.org <mailto:idr@ietf.org>" <idr@ietf.org =
<mailto:idr@ietf.org>>
>> Cc: "jgs@bgp.nu <mailto:jgs@bgp.nu>" <jgs@bgp.nu <mailto:jgs@bgp.nu>>
>> Subject: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
>> =20
>> Hi Gunter,
>> Regarding your presentation, I have following comments:
>> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal =
tunnel setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer =
traffic to the tunnel instead of signal tunnel setup.=20
>> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the =
draft make you confused? We just hope to  just reuses the attributes of =
to specify the tunnel type to help steering=20
>> the traffic to tunnel. If this is not a good way, maybe we can define =
new attributes.
>> =20
>> =20
>> Best Regards,
>> Robin
>> =20
>> =20
>> =20
>> =20
>> =20
>> =E5=8F=91=E4=BB=B6=E4=BA=BA: Idr [mailto:idr-bounces@ietf.org =
<mailto:idr-bounces@ietf.org>] =E4=BB=A3=E8=A1=A8 Susan Hares
>> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8825=E6=97=A5=
 22:07
>> =E6=94=B6=E4=BB=B6=E4=BA=BA: idr@ietf.org <mailto:idr@ietf.org>
>> =E6=8A=84=E9=80=81: jgs@bgp.nu <mailto:jgs@bgp.nu>
>> =E4=B8=BB=E9=A2=98: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am =
ET update
>> =20
>> IDR WG members:=20
>> =20
>> Below is an updated agenda for the IDR interim on 10/26/2015.
>> =20
>> Sue=20
>> =20
>> ------------
>> IDR interim October 26, 2015=20
>> 10:00 - 11:30am=20
>> =20
>> 1. Chair's slides [10:00-10:05]
>> =20
>> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>>    speaker: Stephane Litowski =20
>>    Time: 10:05-10:15
>>    =
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset=
/ =
<https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/>
>>   =20
>> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>>    Speaker: Weiguo Hao
>>    Time: 10:15 - 10:25=20
>>    =
http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/>
>>   =20
>>   =20
>> 3. draft-vandevelde-idr-flowspec-path-redirect
>>    Speaker: Gunter Van De Velde
>>    Time: 10:25- 10:35
>>    =
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirec=
t/ =
<http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/>
>>   =20
>>   =20
>> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02=20
>>    Speaker: Weiguo Hao
>>    Duration: 10:35-10:40=20
>>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/>
>>   =20
>> =20
>> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>>    Speaker:=20
>>    Duration: 10:40-10:45=20
>>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/>
>>   =20
>> 6. draft-liang-idr-bgp-flowspec-time
>>    presenter: Jianjie You
>>    time: 10:45-10:55
>>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/>
>> =20
>> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>>    Speaker: Zhenbin Li
>>    Duration: 10:55-11:05=20
>>    =
http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/ =
<http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/>
>> =20
>> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>>    Speaker: Shunwan Zhuang
>>    Duration: 11:05 - 11:15=20
>>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/ =
<http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/>
>>   =20
>> 8.  Discussion of Flowspec drafts
>>     11:15 - 11:30am=20
>> =20
>>  Meeting Web-ex information=20
>>  Monday, October 26, 2015=20
>> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs=20
>> =20
>> webex infor:=20
>> =
https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f=
 =
<https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f>
>> =20
>> Meeting number:            644 964 970=20
>> Meeting password:         flow.in.nets
>> =20
>> =20
>> Join by phone
>> 1-877-668-4493 Call-in toll free number (US/Canada)
>> 1-650-479-3208 Call-in toll number (US/Canada)
>> Access code: 644 964 970
>> =20
>> =20
>> _______________________________________________
>> Idr mailing list
>> Idr@ietf.org <mailto:Idr@ietf.org>
>> https://www.ietf.org/mailman/listinfo/idr =
<https://www.ietf.org/mailman/listinfo/idr>
> =20
> <Hares-Discussion of Flowspec.pdf>


--Apple-Mail=_0BBBC220-ADB0-4A4D-B888-D5EF20BF6FAF
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charset=utf-8

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><div class=3D"">Many thanks for the table, due to the extra =
context i understand better how this table should be consumed and i =
realise that&nbsp;</div><div class=3D"">the embedded comparison has a =
tiny mistake, resulting in the unlucky consequence it provides mayor =
misleadings regarding&nbsp;</div><div =
class=3D"">traffic-steering-into-a-tunnel proposals.</div><div =
class=3D""><br class=3D""></div><div class=3D"">It really makes no =
technical sense to classify draft-vandevelde-idr-flowspec-path-redirect =
together with&nbsp;<span style=3D"font-size: 1em;" =
class=3D"">draft-li-idr-mpls-path-programming-02 as they are totally =
orthogonal to&nbsp;</span>each other.<div class=3D""><br =
class=3D""></div></div><div class=3D""><div class=3D"">The better bucket =
for draft-vandevelde-idr-flowspec-path-redirect would be:</div><div =
class=3D""><br class=3D""></div><div class=3D"">Traffic steering (or =
even your classification for =E2=80=98tunnels=E2=80=99 seems more =
appropriate)</div><div class=3D"">&nbsp; =
draft-vandevelde-idr-flowspec-path-redirect</div><div class=3D""><span =
style=3D"background-color: rgb(255, 255, 255);" class=3D"">&nbsp; =
draft-hao-idr-flowspec-redirect-tunnel</span></div><div class=3D""><br =
class=3D""></div><div class=3D""><span style=3D"background-color: =
white;" class=3D"">Both of these drafts use flowspec to steer traffic =
into a tunnel (either IP or something else).</span></div><div =
class=3D""><span style=3D"background-color: white;" =
class=3D"">In&nbsp;</span><span style=3D"background-color: white;" =
class=3D"">draft-hao-idr-flowspec-redirect-tunnel the steering-to-tunnel =
info and tunnel construct info is signalled together with the flowspec =
NLRI (e.g. additional attributes (MPP or =
encap-attribute)).</span></div><div class=3D""><span =
style=3D"background-color: white;" class=3D"">In =
draft&nbsp;</span>draft-vandevelde-idr-flowspec-path-redirect flowspec =
simply signals a redirect PATH_ID used as meta-data to identify a =
locallised tunnel or redirect construct in a localised PATH_ID =
table.&nbsp;</div><div class=3D"">This process allows that a tunnel =
construct is completely decoupled from flowspec signalling (there are =
many ways to construct this local table:&nbsp;<span style=3D"font-size: =
1em;" class=3D"">draft-li-idr-mpls-path-programming, encap-attribute, =
manual config, etc</span>=E2=80=A6<span style=3D"font-size: 1em;" =
class=3D"">).</span></div><div class=3D""><br class=3D""></div><div =
class=3D"">Brgds,</div></div><div class=3D"">G/</div><div class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""></div><br =
class=3D""><div><blockquote type=3D"cite" class=3D""><div class=3D"">On =
28 Oct 2015, at 00:30, Susan Hares &lt;<a href=3D"mailto:shares@ndzh.com" =
class=3D"">shares@ndzh.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div =
class=3D"WordSection1" style=3D"page: WordSection1; font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"color: rgb(31, 73, =
125);" class=3D"">Gunter:<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"color: rgb(31, 73, 125);" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" class=3D"">Robin=E2=80=
=99s proposal is<span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming=
/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</a><o:p class=3D""></o:p></span></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" class=3D"">See my =
attached comparison from the interim.&nbsp; You can also download =
Robin=E2=80=99s slides from the interim.&nbsp; &nbsp;<o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"color: rgb(31, 73, 125);" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" class=3D"">Sue<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"color: rgb(31, 73, 125);" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div class=3D""><div =
style=3D"border-style: solid none none; border-top-color: rgb(181, 196, =
223); border-top-width: 1pt; padding: 3pt 0in 0in;" class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><b class=3D""><span style=3D"font-size: =
10pt; font-family: Tahoma, sans-serif;" class=3D"">From:</span></b><span =
style=3D"font-size: 10pt; font-family: Tahoma, sans-serif;" =
class=3D""><span class=3D"Apple-converted-space">&nbsp;</span>Idr [<a =
href=3D"mailto:idr-bounces@ietf.org" style=3D"color: purple; =
text-decoration: underline;" =
class=3D"">mailto:idr-bounces@ietf.org</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span><b class=3D"">On Behalf =
Of<span class=3D"Apple-converted-space">&nbsp;</span></b>Gunter Van De =
Velde<br class=3D""><b class=3D"">Sent:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Tuesday, October 27, 2015 =
4:12 PM<br class=3D""><b class=3D"">To:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Susan Hares<br class=3D""><b =
class=3D"">Cc:</b><span class=3D"Apple-converted-space">&nbsp;</span>idr =
wg;<span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:jgs@bgp.nu" style=3D"color: purple; text-decoration: =
underline;" class=3D"">jgs@bgp.nu</a><br class=3D""><b =
class=3D"">Subject:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D"font-size: 10pt; font-family: 'MS UI Gothic', sans-serif;" =
class=3D"">=E7=AD=94=E5=A4=8D</span><span style=3D"font-size: 10pt; =
font-family: Tahoma, sans-serif;" class=3D"">: IDR interim (10/26/2015) =
10:00am - 11:30am ET update<o:p =
class=3D""></o:p></span></div></div></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">Hi Sue,<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt; =
font-family: Times, serif;" class=3D"">Would you know where to find =
Forwarding ID described in&nbsp;<span style=3D"background-color: white; =
background-position: initial initial; background-repeat: initial =
initial;" class=3D"">draft-hao-idr-flowspec-redirect-tunnel&nbsp;to =
make&nbsp;assessment?&nbsp;</span></span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; font-family: Times, serif; =
background-color: white; background-position: initial initial; =
background-repeat: initial initial;" class=3D"">There&nbsp;is no =
mentioning of this concept at all in the document?&nbsp;</span><span =
style=3D"font-size: 10.5pt; font-family: Times, serif;" =
class=3D"">Alternatively, what i found is signalling of tunnel end-point =
(IPv4/IPv6) and&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; font-family: Times, serif;" class=3D"">some tunnel setup =
information (tunnel encap attribute and a new MPP TE tunnel =
attribute).</span><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">Brgds,<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">G/<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div><div class=3D""><blockquote =
style=3D"margin-top: 5pt; margin-bottom: 5pt;" class=3D"" =
type=3D"cite"><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D"">On 27 Oct =
2015, at 19:28, Susan Hares &lt;<a href=3D"mailto:shares@ndzh.com" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">shares@ndzh.com</a>&gt; wrote:<o:p =
class=3D""></o:p></div></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div><div class=3D""><div class=3D""><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"color: =
rgb(31, 73, 125);" class=3D"">Gunter:<span =
class=3D"Apple-converted-space">&nbsp;</span></span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"color: =
rgb(31, 73, 125);" class=3D"">Can you let me know the difference between =
the Path ID in your proposal and Robin=E2=80=99s Forwarding ID that is a =
generalized segment ID?<span =
class=3D"Apple-converted-space">&nbsp;</span></span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"color: =
rgb(31, 73, 125);" class=3D"">Sue Hares</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"border-style: solid none none; =
border-top-color: rgb(181, 196, 223); border-top-width: 1pt; padding: =
3pt 0in 0in;" class=3D""><div class=3D""><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><b class=3D""><span style=3D"font-size: 10pt; font-family: =
Tahoma, sans-serif;" class=3D"">From:</span></b><span style=3D"font-size: =
10pt; font-family: Tahoma, sans-serif;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>VAN DE VELDE, Gunter =
(Gunter) [<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">mailto:gunter.van_de_velde@alcatel-lucent.com</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span><br class=3D""><b =
class=3D"">Sent:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Monday, October 26, 2015 =
12:26 PM<br class=3D""><b class=3D"">To:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Lizhenbin; Susan =
Hares;<span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">idr@ietf.org</a><br class=3D""><b =
class=3D"">Cc:</b><span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:jgs@bgp.nu" style=3D"color: purple; text-decoration: =
underline;" class=3D"">jgs@bgp.nu</a><br class=3D""><b =
class=3D"">Subject:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D"font-size: 10pt; font-family: 'MS UI Gothic', sans-serif;" =
class=3D"">=E7=AD=94=E5=A4=8D</span><span style=3D"font-size: 10pt; =
font-family: Tahoma, sans-serif;" class=3D"">: IDR interim (10/26/2015) =
10:00am - 11:30am ET update</span><o:p =
class=3D""></o:p></div></div></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div class=3D""><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt;" class=3D"">Hi Robin,</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">Thanks for your note.</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">A tunnel is not always going =
over shortest path. Some tunnels are TE tunnels and are deliberately not =
going over a shortest path. This is something that&nbsp;<span =
style=3D"color: rgb(31, 73, 125);" =
class=3D"">draft-rosen-idr-tunnel-encaps-00&nbsp;</span>will not help to =
signal because the tunnel-encap attribute indicates tunnel parameters =
used by the tail-end.</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">If a redirect tunnel represents a particular =
redirect/steering service (better delay, less packet loss, non-SRLG, =
more BW, etc=E2=80=A6) then it does become rather complex for BGP as =
signalling technology because a tunnel relationship is a unique between =
'a headend' and =E2=80=98a tailed' device. It seems better to leave =
tunnel-setup to dedicated tunnel-setup mechanisms like PCEP, SR, =
etc=E2=80=A6.</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">The draft redirect-to-PATH_ID is providing the means to =
signal a flow-based redirect/steering service, and have each recipient =
router identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable =
fashion.</span><o:p class=3D""></o:p></div></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">Kind Regards,</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">G/</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div style=3D"border-style: solid =
none none; border-top-color: rgb(181, 196, 223); border-top-width: 1pt; =
padding: 3pt 0in 0in;" class=3D""><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><b class=3D"">From:&nbsp;</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Idr &lt;<a =
href=3D"mailto:idr-bounces@ietf.org" style=3D"color: purple; =
text-decoration: underline;" class=3D"">idr-bounces@ietf.org</a>&gt; on =
behalf of Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">lizhenbin@huawei.com</a>&gt;<br class=3D""><b =
class=3D"">Date:<span =
class=3D"Apple-converted-space">&nbsp;</span></b>Monday 26 October 2015 =
at 16:51<br class=3D""><b class=3D"">To:<span =
class=3D"Apple-converted-space">&nbsp;</span></b>Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com" style=3D"color: purple; text-decoration: =
underline;" class=3D"">shares@ndzh.com</a>&gt;, "<a =
href=3D"mailto:idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">idr@ietf.org</a>" &lt;<a =
href=3D"mailto:idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">idr@ietf.org</a>&gt;<br class=3D""><b =
class=3D"">Cc:<span class=3D"Apple-converted-space">&nbsp;</span></b>"<a =
href=3D"mailto:jgs@bgp.nu" style=3D"color: purple; text-decoration: =
underline;" class=3D"">jgs@bgp.nu</a>" &lt;<a href=3D"mailto:jgs@bgp.nu" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">jgs@bgp.nu</a>&gt;<br class=3D""><b class=3D"">Subject:<span =
class=3D"Apple-converted-space">&nbsp;</span></b>[Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//<span style=3D"font-family: =
'MS Gothic';" class=3D"">=E7=AD=94=E5=A4=8D</span>: IDR interim =
(10/26/2015) 10:00am - 11:30am ET update<o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div class=3D""><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">Hi Gunter,</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">Regarding your =
presentation, I have following comments:</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">Do you mean draft-hao-idr-flowspec-redirect-tunnel is to =
signal tunnel setup info? draft-hao-idr-flowspec-redirect-tunnel is to =
steer traffic to the tunnel instead of signal tunnel setup.<span =
class=3D"Apple-converted-space">&nbsp;</span></span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">I am not sure if the reuse of =
draft-rosen-idr-tunnel-encaps-00 in the draft make you confused? We just =
hope to &nbsp;just reuses the attributes of to specify the tunnel type =
to help steering<span =
class=3D"Apple-converted-space">&nbsp;</span></span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">the traffic to tunnel. If this is not a good way, maybe we =
can define new attributes.</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">Best Regards,</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">Robin</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"border-style: =
solid none none; border-top-color: rgb(181, 196, 223); border-top-width: =
1pt; padding: 3pt 0in 0in;" class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><b class=3D""><span lang=3D"ZH-CN" =
style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">=E5=8F=91=E4=BB=B6=E4=BA=BA</span></b><b class=3D""><span =
style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">:</span></b><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span class=3D"Apple-converted-space">&nbsp;</span>Idr=
 [<a href=3D"mailto:idr-bounces@ietf.org" style=3D"color: purple; =
text-decoration: underline;" =
class=3D"">mailto:idr-bounces@ietf.org</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span></span><b class=3D""><span =
lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">=E4=BB=A3=E8=A1=A8<span =
class=3D"Apple-converted-space">&nbsp;</span></span></b><span =
style=3D"font-size: 10pt; font-family: SimSun;" class=3D"">Susan =
Hares<br class=3D""></span><b class=3D""><span lang=3D"ZH-CN" =
style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4</span></b><b =
class=3D""><span style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">:</span></b><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>2015</span><span =
lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">=E5=B9=B4</span><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D"">10</span><span lang=3D"ZH-CN" style=3D"font-size: =
10pt; font-family: SimSun;" class=3D"">=E6=9C=88</span><span =
style=3D"font-size: 10pt; font-family: SimSun;" class=3D"">25</span><span =
lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">=E6=97=A5</span><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>22:07<br class=3D""></span><b=
 class=3D""><span lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D"">=E6=94=B6=E4=BB=B6=E4=BA=BA</span></b><b =
class=3D""><span style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">:</span></b><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">idr@ietf.org</a><br class=3D""></span><b =
class=3D""><span lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D"">=E6=8A=84=E9=80=81</span></b><b class=3D""><span =
style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">:</span></b><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:jgs@bgp.nu" style=3D"color: purple; text-decoration: =
underline;" class=3D"">jgs@bgp.nu</a><br class=3D""></span><b =
class=3D""><span lang=3D"ZH-CN" style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D"">=E4=B8=BB=E9=A2=98</span></b><b class=3D""><span =
style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">:</span></b><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>[Idr] IDR interim =
(10/26/2015) 10:00am - 11:30am ET update</span><o:p =
class=3D""></o:p></div></div></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">IDR WG members:<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">Below is an updated agenda for the IDR =
interim on 10/26/2015.<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">Sue<span class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">------------<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">IDR interim October 26, 2015<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">10:00 - 11:30am<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">1. Chair's slides [10:00-10:05]<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">1. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; speaker: Stephane Litowski&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;Time: 10:05-10:15<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-inte=
rfaceset/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-i=
nterfaceset/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">2. draft-hao-idr-flowspec-redirect-tunnel-00<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker: Weiguo Hao<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Time: 10:15 - 10:25<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tu=
nnel/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect=
-tunnel/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">3. =
draft-vandevelde-idr-flowspec-path-redirect<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker: Gunter Van De Velde<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Time: 10:25- 10:35<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path=
-redirect/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-p=
ath-redirect/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">4. Draft Name: =
draft-hao-idr-flowspec-nvo3-02<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;Speaker: Weiguo Hao<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Duration: 10:35-10:40<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a=
><o:p class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">5. =
draft-liang-idr-bgp-flowspec-label-01.txt.<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker:<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;Duration: 10:40-10:45<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label=
/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-la=
bel/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">6. draft-liang-idr-bgp-flowspec-time<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; presenter: Jianjie You<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; time: 10:45-10:55<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/=
" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-ti=
me/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">7. Draft Name: draft-li-idr-mpls-path-programming-02<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker: Zhenbin Li<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Duration: 10:55-11:05<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming=
/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">7. Draft Name: draft-li-idr-flowspec-rpd-01<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker: Shunwan Zhuang<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Duration: 11:05 - 11:15<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/</a><=
o:p class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">8.&nbsp; Discussion of Flowspec drafts<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp; 11:15 - 11:30am<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;Meeting Web-ex information<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;Monday, October 26, 2015<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">10:00 am&nbsp; |&nbsp; Eastern Daylight Time (New York, =
GMT-04:00)&nbsp; |&nbsp; 2 hrs<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">webex infor:<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><a =
href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c=
3ff3143f" style=3D"color: purple; text-decoration: underline;" =
class=3D"">https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e5=
99c3ff3143f</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">Meeting number: =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 964 =
970<span class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">Meeting =
password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
flow.in.nets<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">Join by phone<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">1-877-668-4493 Call-in toll free number (US/Canada)<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">1-650-479-3208 Call-in toll number (US/Canada)<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">Access code: 644 964 970<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div></div></div></div><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 12pt; =
font-family: 'Times New Roman', serif;" =
class=3D"">_______________________________________________<br =
class=3D"">Idr mailing list<br class=3D""><a href=3D"mailto:Idr@ietf.org" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">Idr@ietf.org</a><br class=3D""><a =
href=3D"https://www.ietf.org/mailman/listinfo/idr" style=3D"color: =
purple; text-decoration: underline;" =
class=3D"">https://www.ietf.org/mailman/listinfo/idr</a><o:p =
class=3D""></o:p></span></div></div></blockquote></div><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 12pt; =
font-family: 'Times New Roman', serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div></div><span =
id=3D"cid:44FB1AAB-D3AA-4EA7-AA07-AE88FCB60BB0@home">&lt;Hares-Discussion =
of Flowspec.pdf&gt;</span></div></blockquote></div><br =
class=3D""></body></html>=

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Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiBJRFIgaW50ZXJpbSAoMTAvMjYvMjAxNSkgMTA6MDBh?= =?utf-8?q?m_-_11=3A30am_ET_update?=
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Hi Sue,

> The issue is that =E2=80=9Cpath-id=E2=80=9D and your concepts of paths
> is similar to many of the MPLS and segment routing path ids.

Well as it turns out from our discussion yesterday Gunter clarified that
the PATH_ID he used is just an reference to an indirection.

Hence as such it really has not much in common with what most folks
understand by PATH_ID.

Perhaps if he just renames it to something else (less confusing) his draft
will go forward quite smooth :)

Cheers,
R.




On Wed, Oct 28, 2015 at 10:50 AM, Susan Hares <shares@ndzh.com> wrote:

> Gunter:
>
>
>
> My apologies =E2=80=93 since the slide I referenced was the chair=E2=80=
=99s discussion
> generating slide =E2=80=93 I did not put <IDR chair hat on> - I should ha=
ve.
>
>
>
> <chair hat on>
>
> My chair=E2=80=99s discussion was to inspire conversation on you percepti=
on of the
> path-id versus the draft-li-mpls-path-programming.
>
>
>
> I was looking to solicit the following comment from you.
>
>
>
> =E2=80=9CYou clearly understand that draft-vandevelde-idr-flowspec-path-r=
edirect
> and draft-li-idr-mpls-path-programming are orthogonal to each other, not?=
=E2=80=9D
>
>
>
> My job as chair is to get people talking about their view of the other
> proposal.
>
> <chair hat off>
>
>
>
> The issue is that =E2=80=9Cpath-id=E2=80=9D and your concepts of paths is=
 similar to many
> of the MPLS and segment routing path ids.
>  Draft-li-idr-mpls-path-programming seeks to generalize segment routing
> (see Robin=E2=80=99s slides) using a variety of BGP and MPLS.
>
>
>
> As Lucy=E2=80=99s slides pointed out =E2=80=93 we have an IP and non-IP t=
raffic.  My
> understanding is that your path-id is for just IP traffic.  You comment
> below would suggest both.
>
>
>
> Best wishes,
>
> Sue
>
>
>
> *From:* Idr [mailto:idr-bounces@ietf.org] *On Behalf Of *Gunter Van De
> Velde
> *Sent:* Wednesday, October 28, 2015 5:38 AM
>
> *To:* Susan Hares
> *Cc:* idr wg; jgs@bgp.nu
> *Subject:* Re: [Idr] Regarding
> draft-vandevelde-idr-flowspec-path-redirect//
> =E7=AD=94=E5=A4=8D: IDR interim (10/26/2015) 10:00am - 11:30am ET update
>
>
>
> Hi Sue,
>
>
>
> [Please indicate when you are speaking as IDR chair or when you are
> speaking as contributor/affiliation=E2=80=A6 i am confused]
>
>
>
> I did a search for forwarding ID in the referenced document and i do not
> see it?
>
>
>
> You clearly understand that draft-vandevelde-idr-flowspec-path-redirect
> and draft-li-idr-mpls-path-programming are orthogonal to each other, not?
>
> =E2=80=9Cdraft-li-idr-mpls-path-programming " specifies how BGP uses attr=
ibutes to
> signal a tunnel and how a tunnel is constructed through the network, whil=
e
> on the other end of the
>
> spectrum draft-vandevelde-idr-flowspec-path-redirect specifies flowspec
> based traffic steering onto a redirect path and signals no tunnel
> attributes at all.
>
>
>
> In draft-vandevelde-idr-flowspec-path-redirect the local PATH_ID table ca=
n
> be constructed by many means and is outside the scope of the document:
>
>
>
> * draft-li-idr-mpls-path-programming
>
> * manual config
>
> * netconf/yang
>
> * traditional routing
>
> * voodoo
>
> * etc...
>
>
>
> The end result: redirect-to-path and draft-li-idr-mpls-path-programming
> are orthogonal to each other.
>
>
>
> Kind Regards,
>
> G/
>
>
>
>
>
> On 28 Oct 2015, at 00:30, Susan Hares <shares@ndzh.com> wrote:
>
>
>
> Gunter:
>
>
>
> Robin=E2=80=99s proposal is
> http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/
>
>
>
> See my attached comparison from the interim.  You can also download
> Robin=E2=80=99s slides from the interim.
>
>
>
> Sue
>
>
>
> *From:* Idr [mailto:idr-bounces@ietf.org <idr-bounces@ietf.org>] *On
> Behalf Of *Gunter Van De Velde
> *Sent:* Tuesday, October 27, 2015 4:12 PM
> *To:* Susan Hares
> *Cc:* idr wg; jgs@bgp.nu
> *Subject:* Re: [Idr] Regarding
> draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR inte=
rim (10/26/2015)
> 10:00am - 11:30am ET update
>
>
>
> Hi Sue,
>
>
>
> Would you know where to find Forwarding ID described in draft-hao-idr-flo=
wspec-redirect-tunnel to
> make assessment?
>
> There is no mentioning of this concept at all in the document? Alternativ=
ely,
> what i found is signalling of tunnel end-point (IPv4/IPv6) and
>
> some tunnel setup information (tunnel encap attribute and a new MPP TE
> tunnel attribute).
>
>
>
> Brgds,
>
> G/
>
>
>
>
>
>
>
>
>
>
>
>
>
> On 27 Oct 2015, at 19:28, Susan Hares <shares@ndzh.com> wrote:
>
>
>
> Gunter:
>
>
>
> Can you let me know the difference between the Path ID in your proposal
> and Robin=E2=80=99s Forwarding ID that is a generalized segment ID?
>
>
>
> Sue Hares
>
>
>
> *From:* VAN DE VELDE, Gunter (Gunter) [
> mailto:gunter.van_de_velde@alcatel-lucent.com
> <gunter.van_de_velde@alcatel-lucent.com>]
> *Sent:* Monday, October 26, 2015 12:26 PM
> *To:* Lizhenbin; Susan Hares; idr@ietf.org
> *Cc:* jgs@bgp.nu
> *Subject:* Re: [Idr] Regarding
> draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR inte=
rim (10/26/2015)
> 10:00am - 11:30am ET update
>
>
>
> Hi Robin,
>
>
>
> Thanks for your note.
>
>
>
> A tunnel is not always going over shortest path. Some tunnels are TE
> tunnels and are deliberately not going over a shortest path. This is
> something that draft-rosen-idr-tunnel-encaps-00 will not help to signal
> because the tunnel-encap attribute indicates tunnel parameters used by th=
e
> tail-end.
>
>
>
> If a redirect tunnel represents a particular redirect/steering service
> (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then it=
 does
> become rather complex for BGP as signalling technology because a tunnel
> relationship is a unique between 'a headend' and =E2=80=98a tailed' devic=
e. It
> seems better to leave tunnel-setup to dedicated tunnel-setup mechanisms
> like PCEP, SR, etc=E2=80=A6.
>
>
>
> The draft redirect-to-PATH_ID is providing the means to signal a
> flow-based redirect/steering service, and have each recipient router
> identify using local recursion for the PATH_IDs the corresponding
> tunnels/redirect-info. This allows for tunnel setup complexity to be take=
n
> away from BGP, while at the same time BGP is doing what it is very good a=
t
> doing: "It signals a policy=E2=80=9D in reliable fashion.
>
>
>
> Kind Regards,
>
> G/
>
>
>
>
>
>
>
> *From: * Idr <idr-bounces@ietf.org> on behalf of Lizhenbin <
> lizhenbin@huawei.com>
> *Date: *Monday 26 October 2015 at 16:51
> *To: *Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
> *Cc: *"jgs@bgp.nu" <jgs@bgp.nu>
> *Subject: *[Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//=
=E7=AD=94=E5=A4=8D:
> IDR interim (10/26/2015) 10:00am - 11:30am ET update
>
>
>
> Hi Gunter,
>
> Regarding your presentation, I have following comments:
>
> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel
> setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic to
> the tunnel instead of signal tunnel setup.
>
> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the
> draft make you confused? We just hope to  just reuses the attributes of t=
o
> specify the tunnel type to help steering
>
> the traffic to tunnel. If this is not a good way, maybe we can define new
> attributes.
>
>
>
>
>
> Best Regards,
>
> Robin
>
>
>
>
>
>
>
>
>
>
>
> *=E5=8F=91=E4=BB=B6=E4=BA=BA**:* Idr [mailto:idr-bounces@ietf.org <idr-bo=
unces@ietf.org>] *=E4=BB=A3=E8=A1=A8* Susan
> Hares
> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4**:* 2015=E5=B9=B410=E6=9C=8825=E6=
=97=A5 22:07
> *=E6=94=B6=E4=BB=B6=E4=BA=BA**:* idr@ietf.org
> *=E6=8A=84=E9=80=81**:* jgs@bgp.nu
> *=E4=B8=BB=E9=A2=98**:* [Idr] IDR interim (10/26/2015) 10:00am - 11:30am =
ET update
>
>
>
> IDR WG members:
>
>
>
> Below is an updated agenda for the IDR interim on 10/26/2015.
>
>
>
> Sue
>
>
>
> ------------
>
> IDR interim October 26, 2015
>
> 10:00 - 11:30am
>
>
>
> 1. Chair's slides [10:00-10:05]
>
>
>
> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>
>    speaker: Stephane Litowski
>
>    Time: 10:05-10:15
>
>
> https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/
>
>
>
> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>
>    Speaker: Weiguo Hao
>
>    Time: 10:15 - 10:25
>
>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel=
/
>
>
>
>
>
> 3. draft-vandevelde-idr-flowspec-path-redirect
>
>    Speaker: Gunter Van De Velde
>
>    Time: 10:25- 10:35
>
>
> http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/
>
>
>
>
>
> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02
>
>    Speaker: Weiguo Hao
>
>    Duration: 10:35-10:40
>
>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/
>
>
>
>
>
> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>
>    Speaker:
>
>    Duration: 10:40-10:45
>
>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/
>
>
>
> 6. draft-liang-idr-bgp-flowspec-time
>
>    presenter: Jianjie You
>
>    time: 10:45-10:55
>
>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/
>
>
>
> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>
>    Speaker: Zhenbin Li
>
>    Duration: 10:55-11:05
>
>    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/
>
>
>
> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>
>    Speaker: Shunwan Zhuang
>
>    Duration: 11:05 - 11:15
>
>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/
>
>
>
> 8.  Discussion of Flowspec drafts
>
>     11:15 - 11:30am
>
>
>
>  Meeting Web-ex information
>
>  Monday, October 26, 2015
>
> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs
>
>
>
> webex infor:
>
> https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f
>
>
>
> Meeting number:            644 964 970
>
> Meeting password:         flow.in.nets
>
>
>
>
>
> Join by phone
>
> 1-877-668-4493 Call-in toll free number (US/Canada)
>
> 1-650-479-3208 Call-in toll number (US/Canada)
>
> Access code: 644 964 970
>
>
>
>
>
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr
>
>
>
> <Hares-Discussion of Flowspec.pdf>
>
>
>
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr
>
>

--047d7b5d23e2457a450523275c7c
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small">Hi Sue,</div><div class=3D"gmail_defaul=
t" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></d=
iv><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-s=
erif;font-size:small"><span style=3D"color:rgb(31,73,125);font-family:Calib=
ri,sans-serif;font-size:14.6667px">&gt; The issue is that =E2=80=9Cpath-id=
=E2=80=9D and your concepts of paths=C2=A0</span></div><div class=3D"gmail_=
default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><=
span style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font-size=
:14.6667px">&gt; is similar to many of the MPLS and segment routing path id=
s.</span><br></div><div class=3D"gmail_default" style=3D"font-family:arial,=
helvetica,sans-serif;font-size:small"><span style=3D"color:rgb(31,73,125);f=
ont-family:Calibri,sans-serif;font-size:14.6667px"><br></span></div><div cl=
ass=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-=
size:small"><span style=3D"color:rgb(31,73,125);font-family:Calibri,sans-se=
rif;font-size:14.6667px">Well as it turns out from our discussion yesterday=
 Gunter clarified that the PATH_ID he used is just an reference to an indir=
ection.=C2=A0</span></div><div class=3D"gmail_default" style=3D"font-family=
:arial,helvetica,sans-serif;font-size:small"><span style=3D"color:rgb(31,73=
,125);font-family:Calibri,sans-serif;font-size:14.6667px"><br></span></div>=
<div class=3D"gmail_default"><font color=3D"#1f497d" face=3D"Calibri, sans-=
serif"><span style=3D"font-size:14.6667px">Hence as such it really has not =
much in common with what most folks understand by PATH_ID.=C2=A0</span></fo=
nt></div><div class=3D"gmail_default"><font color=3D"#1f497d" face=3D"Calib=
ri, sans-serif"><span style=3D"font-size:14.6667px"><br></span></font></div=
><div class=3D"gmail_default"><font color=3D"#1f497d" face=3D"Calibri, sans=
-serif"><span style=3D"font-size:14.6667px">Perhaps if he just renames it t=
o something else (less confusing) his draft will go forward quite smooth :)=
=C2=A0</span></font></div><div class=3D"gmail_default"><font color=3D"#1f49=
7d" face=3D"Calibri, sans-serif"><span style=3D"font-size:14.6667px"><br></=
span></font></div><div class=3D"gmail_default"><font color=3D"#1f497d" face=
=3D"Calibri, sans-serif"><span style=3D"font-size:14.6667px">Cheers,<br>R.<=
/span></font></div><div class=3D"gmail_default"><font color=3D"#1f497d" fac=
e=3D"Calibri, sans-serif"><span style=3D"font-size:14.6667px"><br></span></=
font></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetic=
a,sans-serif;font-size:small"><span style=3D"color:rgb(31,73,125);font-fami=
ly:Calibri,sans-serif;font-size:14.6667px"><br></span></div><div class=3D"g=
mail_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:sma=
ll"><span style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font=
-size:14.6667px"><br></span></div></div><div class=3D"gmail_extra"><br><div=
 class=3D"gmail_quote">On Wed, Oct 28, 2015 at 10:50 AM, Susan Hares <span =
dir=3D"ltr">&lt;<a href=3D"mailto:shares@ndzh.com" target=3D"_blank">shares=
@ndzh.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lan=
g=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><p class=3D"MsoNormal"><spa=
n style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-seri=
f&quot;;color:#1f497d">Gunter: <u></u><u></u></span></p><p class=3D"MsoNorm=
al"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;s=
ans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></span></p><p class=3D"M=
soNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&=
quot;sans-serif&quot;;color:#1f497d">My apologies =E2=80=93 since the slide=
 I referenced was the chair=E2=80=99s discussion generating slide =E2=80=93=
 I did not put &lt;IDR chair hat on&gt; - I should have. <u></u><u></u></sp=
an></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&=
quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0<u></u><u></=
u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-fa=
mily:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">&lt;chair ha=
t on&gt; <u></u><u></u></span></p><p class=3D"MsoNormal"><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:=
#1f497d">My chair=E2=80=99s discussion was to inspire conversation on you p=
erception of the path-id versus the draft-li-mpls-path-programming. <u></u>=
<u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=
=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.=
0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">I=
 was looking to solicit the following comment from you. =C2=A0<u></u><u></u=
></span></p><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><p class=3D"MsoN=
ormal">=E2=80=9CYou clearly understand that draft-vandevelde-idr-flowspec-p=
ath-redirect and=C2=A0draft-li-idr-mpls-path-programming are orthogonal to =
each other, not?=E2=80=9D <u></u><u></u></p><p class=3D"MsoNormal"><span st=
yle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&qu=
ot;;color:#1f497d"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><s=
pan style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-se=
rif&quot;;color:#1f497d">My job as chair is to get people talking about the=
ir view of the other proposal. <u></u><u></u></span></p><p class=3D"MsoNorm=
al"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;s=
ans-serif&quot;;color:#1f497d">&lt;chair hat off&gt; <u></u><u></u></span><=
/p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot=
;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></=
span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">The issue is tha=
t =E2=80=9Cpath-id=E2=80=9D and your concepts of paths is similar to many o=
f the MPLS and segment routing path ids.=C2=A0 =C2=A0Draft-li-idr-mpls-path=
-programming seeks to generalize segment routing (see Robin=E2=80=99s slide=
s) using a variety of BGP and MPLS. =C2=A0=C2=A0=C2=A0<u></u><u></u></span>=
</p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quo=
t;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u><=
/span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-famil=
y:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">As Lucy=E2=80=
=99s slides pointed out =E2=80=93 we have an IP and non-IP traffic.=C2=A0 M=
y understanding is that your path-id is for just IP traffic.=C2=A0 You comm=
ent below would suggest both. <u></u><u></u></span></p><p class=3D"MsoNorma=
l"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></span></p><p class=3D"Ms=
oNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&q=
uot;sans-serif&quot;;color:#1f497d">Best wishes, <u></u><u></u></span></p><=
p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Cal=
ibri&quot;,&quot;sans-serif&quot;;color:#1f497d">Sue <u></u><u></u></span><=
/p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot=
;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></=
span></p><div><div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padd=
ing:3.0pt 0in 0in 0in"><p class=3D"MsoNormal"><b><span style=3D"font-size:1=
0.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></=
b><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans=
-serif&quot;"> Idr [mailto:<a href=3D"mailto:idr-bounces@ietf.org" target=
=3D"_blank">idr-bounces@ietf.org</a>] <b>On Behalf Of </b>Gunter Van De Vel=
de<br><b>Sent:</b> Wednesday, October 28, 2015 5:38 AM</span></p><div><div =
class=3D"h5"><br><b>To:</b> Susan Hares<br><b>Cc:</b> idr wg; <a href=3D"ma=
ilto:jgs@bgp.nu" target=3D"_blank">jgs@bgp.nu</a><br><b>Subject:</b> Re: [I=
dr] Regarding draft-vandevelde-idr-flowspec-path-redirect//</div></div><spa=
n style=3D"font-size:10.0pt;font-family:&quot;MS UI Gothic&quot;,&quot;sans=
-serif&quot;">=E7=AD=94=E5=A4=8D</span><span style=3D"font-size:10.0pt;font=
-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">: IDR interim (10/26/201=
5) 10:00am - 11:30am ET update<u></u><u></u></span><p></p></div></div><div>=
<div class=3D"h5"><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><div><p cl=
ass=3D"MsoNormal">Hi Sue,<u></u><u></u></p></div><div><p class=3D"MsoNormal=
"><u></u>=C2=A0<u></u></p></div><div><p class=3D"MsoNormal">[Please indicat=
e when you are speaking as IDR chair or when you are speaking as contributo=
r/affiliation=E2=80=A6 i am confused]<u></u><u></u></p></div><div><p class=
=3D"MsoNormal"><u></u>=C2=A0<u></u></p></div><div><p class=3D"MsoNormal">I =
did a search for forwarding ID in the referenced document and i do not see =
it?<u></u><u></u></p></div><div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u>=
</p></div><div><p class=3D"MsoNormal">You clearly understand that draft-van=
develde-idr-flowspec-path-redirect and=C2=A0draft-li-idr-mpls-path-programm=
ing are orthogonal to each other, not?<u></u><u></u></p></div><div><p class=
=3D"MsoNormal">=E2=80=9Cdraft-li-idr-mpls-path-programming &quot; specifies=
 how BGP uses attributes to signal a tunnel and how a tunnel is constructed=
 through the network, while on the other end of the=C2=A0<u></u><u></u></p>=
</div><div><p class=3D"MsoNormal">spectrum draft-vandevelde-idr-flowspec-pa=
th-redirect specifies flowspec based traffic steering onto a redirect path =
and signals no tunnel attributes at all.<u></u><u></u></p></div><div><p cla=
ss=3D"MsoNormal"><u></u>=C2=A0<u></u></p></div><div><p class=3D"MsoNormal">=
In draft-vandevelde-idr-flowspec-path-redirect the local PATH_ID table can =
be constructed by many means and is outside the scope of the document:<u></=
u><u></u></p></div><div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p></di=
v><div><p class=3D"MsoNormal">*=C2=A0draft-li-idr-mpls-path-programming<u><=
/u><u></u></p></div><div><p class=3D"MsoNormal">* manual config<u></u><u></=
u></p></div><div><p class=3D"MsoNormal">* netconf/yang<u></u><u></u></p></d=
iv><div><p class=3D"MsoNormal">* traditional routing<u></u><u></u></p></div=
><div><p class=3D"MsoNormal">* voodoo=C2=A0<u></u><u></u></p></div><div><p =
class=3D"MsoNormal">* etc...<u></u><u></u></p></div><div><p class=3D"MsoNor=
mal"><u></u>=C2=A0<u></u></p></div><div><p class=3D"MsoNormal">The end resu=
lt: redirect-to-path and draft-li-idr-mpls-path-programming are orthogonal =
to each other.<u></u><u></u></p></div><div><p class=3D"MsoNormal"><u></u>=
=C2=A0<u></u></p></div><div><p class=3D"MsoNormal">Kind Regards,<u></u><u><=
/u></p></div><div><p class=3D"MsoNormal">G/<u></u><u></u></p></div><div><p =
class=3D"MsoNormal"><u></u>=C2=A0<u></u></p></div><p class=3D"MsoNormal"><u=
></u>=C2=A0<u></u></p><div><blockquote style=3D"margin-top:5.0pt;margin-bot=
tom:5.0pt"><div><p class=3D"MsoNormal">On 28 Oct 2015, at 00:30, Susan Hare=
s &lt;<a href=3D"mailto:shares@ndzh.com" target=3D"_blank">shares@ndzh.com<=
/a>&gt; wrote:<u></u><u></u></p></div><p class=3D"MsoNormal"><u></u>=C2=A0<=
u></u></p><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;=
font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">Gunte=
r:<span>=C2=A0</span></span><span style=3D"font-size:11.0pt;font-family:&qu=
ot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div><di=
v><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;=
Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0</span><span styl=
e=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot=
;"><u></u><u></u></span></p></div><div><p class=3D"MsoNormal"><span style=
=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
;color:#1f497d">Robin=E2=80=99s proposal is<span>=C2=A0</span><a href=3D"ht=
tp://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/" target=
=3D"_blank"><span style=3D"color:purple">http://datatracker.ietf.org/doc/dr=
aft-li-idr-mpls-path-programming/</span></a></span><span style=3D"font-size=
:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u><=
/u></span></p></div><div><p class=3D"MsoNormal"><span style=3D"font-size:11=
.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=
=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot=
;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div><div><p class=3D"M=
soNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&=
quot;sans-serif&quot;;color:#1f497d">See my attached comparison from the in=
terim.=C2=A0 You can also download Robin=E2=80=99s slides from the interim.=
=C2=A0 =C2=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Calib=
ri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div><div><p cla=
ss=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&=
quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0</span><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></=
u><u></u></span></p></div><div><p class=3D"MsoNormal"><span style=3D"font-s=
ize:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f=
497d">Sue<span>=C2=A0</span></span><span style=3D"font-size:11.0pt;font-fam=
ily:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></=
div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0</span><sp=
an style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-ser=
if&quot;"><u></u><u></u></span></p></div><div><div style=3D"border:none;bor=
der-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><div><p class=3D"Mso=
Normal"><b><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&=
quot;sans-serif&quot;">From:</span></b><span><span style=3D"font-size:10.0p=
t;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">=C2=A0</span></spa=
n><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans=
-serif&quot;">Idr [<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank=
"><span style=3D"color:purple">mailto:idr-bounces@ietf.org</span></a>]<span=
>=C2=A0</span><b>On Behalf Of<span>=C2=A0</span></b>Gunter Van De Velde<br>=
<b>Sent:</b><span>=C2=A0</span>Tuesday, October 27, 2015 4:12 PM<br><b>To:<=
/b><span>=C2=A0</span>Susan Hares<br><b>Cc:</b><span>=C2=A0</span>idr wg;<s=
pan>=C2=A0</span><a href=3D"mailto:jgs@bgp.nu" target=3D"_blank"><span styl=
e=3D"color:purple">jgs@bgp.nu</span></a><br><b>Subject:</b><span>=C2=A0</sp=
an>Re: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//</span>=
<span style=3D"font-size:10.0pt;font-family:&quot;MS UI Gothic&quot;,&quot;=
sans-serif&quot;">=E7=AD=94=E5=A4=8D</span><span style=3D"font-size:10.0pt;=
font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">: IDR interim (10/26=
/2015) 10:00am - 11:30am ET update</span><span style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span>=
</p></div></div></div><div><p class=3D"MsoNormal"><span style=3D"font-size:=
11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u=
><u></u></span></p></div><div><div><p class=3D"MsoNormal"><span style=3D"fo=
nt-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Hi S=
ue,<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><s=
pan style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-se=
rif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p class=3D=
"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Times&quot;,&=
quot;serif&quot;">Would you know where to find Forwarding ID described in=
=C2=A0<span style=3D"background:white">draft-hao-idr-flowspec-redirect-tunn=
el=C2=A0to make=C2=A0assessment?=C2=A0</span></span><span style=3D"font-siz=
e:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u>=
</u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"=
font-size:10.5pt;font-family:&quot;Times&quot;,&quot;serif&quot;;background=
:white">There=C2=A0is no mentioning of this concept at all in the document?=
=C2=A0</span><span style=3D"font-size:10.5pt;font-family:&quot;Times&quot;,=
&quot;serif&quot;">Alternatively, what i found is signalling of tunnel end-=
point (IPv4/IPv6) and=C2=A0</span><span style=3D"font-size:11.0pt;font-fami=
ly:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></d=
iv></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;f=
ont-family:&quot;Times&quot;,&quot;serif&quot;">some tunnel setup informati=
on (tunnel encap attribute and a new MPP TE tunnel attribute).</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&=
quot;"><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal=
"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;san=
s-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p clas=
s=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&q=
uot;,&quot;sans-serif&quot;">Brgds,<u></u><u></u></span></p></div></div><di=
v><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&=
quot;Calibri&quot;,&quot;sans-serif&quot;">G/<u></u><u></u></span></p></div=
></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;fon=
t-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></=
span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-s=
ize:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u=
></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span s=
tyle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&q=
uot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoN=
ormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quo=
t;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p=
 class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div></di=
v><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&=
quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p><=
/div><div><blockquote style=3D"margin-top:5.0pt;margin-bottom:5.0pt"><div><=
div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quo=
t;Calibri&quot;,&quot;sans-serif&quot;">On 27 Oct 2015, at 19:28, Susan Har=
es &lt;<a href=3D"mailto:shares@ndzh.com" target=3D"_blank"><span style=3D"=
color:purple">shares@ndzh.com</span></a>&gt; wrote:<u></u><u></u></span></p=
></div></div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u><=
/span></p></div><div><div><div><div><p class=3D"MsoNormal"><span style=3D"f=
ont-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;colo=
r:#1f497d">Gunter:<span>=C2=A0</span></span><span style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></sp=
an></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-siz=
e:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f49=
7d">=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&=
quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div><div><di=
v><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;=
Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">Can you let me know the=
 difference between the Path ID in your proposal and Robin=E2=80=99s Forwar=
ding ID that is a generalized segment ID?<span>=C2=A0</span></span><span st=
yle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&qu=
ot;"><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal">=
<span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-=
serif&quot;;color:#1f497d">=C2=A0</span><span style=3D"font-size:11.0pt;fon=
t-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span><=
/p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11=
.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=
Sue Hares</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&q=
uot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div><div><div=
><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0</span><span style=
=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
"><u></u><u></u></span></p></div></div><div><div style=3D"border:none;borde=
r-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><div><div><p class=3D"=
MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot=
;,&quot;sans-serif&quot;">From:</span></b><span><span style=3D"font-size:10=
.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">=C2=A0</span></=
span><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;s=
ans-serif&quot;">VAN DE VELDE, Gunter (Gunter) [<a href=3D"mailto:gunter.va=
n_de_velde@alcatel-lucent.com" target=3D"_blank"><span style=3D"color:purpl=
e">mailto:gunter.van_de_velde@alcatel-lucent.com</span></a>]<span>=C2=A0</s=
pan><br><b>Sent:</b><span>=C2=A0</span>Monday, October 26, 2015 12:26 PM<br=
><b>To:</b><span>=C2=A0</span>Lizhenbin; Susan Hares;<span>=C2=A0</span><a =
href=3D"mailto:idr@ietf.org" target=3D"_blank"><span style=3D"color:purple"=
>idr@ietf.org</span></a><br><b>Cc:</b><span>=C2=A0</span><a href=3D"mailto:=
jgs@bgp.nu" target=3D"_blank"><span style=3D"color:purple">jgs@bgp.nu</span=
></a><br><b>Subject:</b><span>=C2=A0</span>Re: [Idr] Regarding draft-vandev=
elde-idr-flowspec-path-redirect//</span><span style=3D"font-size:10.0pt;fon=
t-family:&quot;MS UI Gothic&quot;,&quot;sans-serif&quot;">=E7=AD=94=E5=A4=
=8D</span><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&q=
uot;sans-serif&quot;">: IDR interim (10/26/2015) 10:00am - 11:30am ET updat=
e</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&qu=
ot;sans-serif&quot;"><u></u><u></u></span></p></div></div></div></div><div>=
<div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&qu=
ot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></d=
iv></div><div><div><div><div><p class=3D"MsoNormal"><span style=3D"font-siz=
e:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Hi Robin,<=
/span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot=
;sans-serif&quot;"><u></u><u></u></span></p></div></div></div><div><div><di=
v><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;=
Calibri&quot;,&quot;sans-serif&quot;">=C2=A0</span><span style=3D"font-size=
:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u><=
/u></span></p></div></div></div><div><div><div><p class=3D"MsoNormal"><span=
 style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;">Thanks for your note.</span><span style=3D"font-size:11.0pt;font-fa=
mily:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p><=
/div></div></div><div><div><div><p class=3D"MsoNormal"><span style=3D"font-=
size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<=
/span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot=
;sans-serif&quot;"><u></u><u></u></span></p></div></div></div><div><div><di=
v><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;=
Calibri&quot;,&quot;sans-serif&quot;">A tunnel is not always going over sho=
rtest path. Some tunnels are TE tunnels and are deliberately not going over=
 a shortest path. This is something that=C2=A0<span style=3D"color:#1f497d"=
>draft-rosen-idr-tunnel-encaps-00=C2=A0</span>will not help to signal becau=
se the tunnel-encap attribute indicates tunnel parameters used by the tail-=
end.</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,=
&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div></div><div><di=
v><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&=
quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0</span><span style=3D"font=
-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u=
><u></u></span></p></div></div></div><div><div><div><p class=3D"MsoNormal">=
<span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-=
serif&quot;">If a redirect tunnel represents a particular redirect/steering=
 service (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) =
then it does become rather complex for BGP as signalling technology because=
 a tunnel relationship is a unique between &#39;a headend&#39; and =E2=80=
=98a tailed&#39; device. It seems better to leave tunnel-setup to dedicated=
 tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.</span><span style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u=
></u><u></u></span></p></div></div></div><div><div><div><p class=3D"MsoNorm=
al"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;s=
ans-serif&quot;">=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&=
quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div><=
/div></div><div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:1=
0.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">The draft red=
irect-to-PATH_ID is providing the means to signal a flow-based redirect/ste=
ering service, and have each recipient router identify using local recursio=
n for the PATH_IDs the corresponding tunnels/redirect-info. This allows for=
 tunnel setup complexity to be taken away from BGP, while at the same time =
BGP is doing what it is very good at doing: &quot;It signals a policy=E2=80=
=9D in reliable fashion.</span><span style=3D"font-size:11.0pt;font-family:=
&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div>=
</div></div></div><div><div><div><p class=3D"MsoNormal"><span style=3D"font=
-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=
</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quo=
t;sans-serif&quot;"><u></u><u></u></span></p></div></div></div><div><div><d=
iv><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot=
;Calibri&quot;,&quot;sans-serif&quot;">Kind Regards,</span><span style=3D"f=
ont-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u>=
</u><u></u></span></p></div></div></div><div><div><div><p class=3D"MsoNorma=
l"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;">G/</span><span style=3D"font-size:11.0pt;font-family:&quot;=
Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div>=
</div><div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt=
;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0</span><span=
 style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;"><u></u><u></u></span></p></div></div></div><div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;">=C2=A0</span><span style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span>=
</p></div></div></div><div><div><div><p class=3D"MsoNormal"><span style=3D"=
font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=
=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot=
;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div></div><div s=
tyle=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0i=
n"><div><div><p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt;font=
-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">From:=C2=A0</span></b><=
span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;=
sans-serif&quot;">=C2=A0</span></span><span style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Idr &lt;<a href=3D"mailt=
o:idr-bounces@ietf.org" target=3D"_blank"><span style=3D"color:purple">idr-=
bounces@ietf.org</span></a>&gt; on behalf of Lizhenbin &lt;<a href=3D"mailt=
o:lizhenbin@huawei.com" target=3D"_blank"><span style=3D"color:purple">lizh=
enbin@huawei.com</span></a>&gt;<br><b>Date:<span>=C2=A0</span></b>Monday 26=
 October 2015 at 16:51<br><b>To:<span>=C2=A0</span></b>Susan Hares &lt;<a h=
ref=3D"mailto:shares@ndzh.com" target=3D"_blank"><span style=3D"color:purpl=
e">shares@ndzh.com</span></a>&gt;, &quot;<a href=3D"mailto:idr@ietf.org" ta=
rget=3D"_blank"><span style=3D"color:purple">idr@ietf.org</span></a>&quot; =
&lt;<a href=3D"mailto:idr@ietf.org" target=3D"_blank"><span style=3D"color:=
purple">idr@ietf.org</span></a>&gt;<br><b>Cc:<span>=C2=A0</span></b>&quot;<=
a href=3D"mailto:jgs@bgp.nu" target=3D"_blank"><span style=3D"color:purple"=
>jgs@bgp.nu</span></a>&quot; &lt;<a href=3D"mailto:jgs@bgp.nu" target=3D"_b=
lank"><span style=3D"color:purple">jgs@bgp.nu</span></a>&gt;<br><b>Subject:=
<span>=C2=A0</span></b>[Idr] Regarding draft-vandevelde-idr-flowspec-path-r=
edirect//</span><span style=3D"font-size:11.0pt;font-family:&quot;MS Gothic=
&quot;">=E7=AD=94=E5=A4=8D</span><span style=3D"font-size:11.0pt;font-famil=
y:&quot;Calibri&quot;,&quot;sans-serif&quot;">: IDR interim (10/26/2015) 10=
:00am - 11:30am ET update<u></u><u></u></span></p></div></div></div><div><d=
iv><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:=
&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0</span><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></=
u><u></u></span></p></div></div></div><div><div><div><div><p class=3D"MsoNo=
rmal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot=
;sans-serif&quot;;color:#1f497d">Hi Gunter,</span><span style=3D"font-size:=
11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></=
u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"fo=
nt-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color=
:#1f497d">Regarding your presentation, I have following comments:</span><sp=
an style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-ser=
if&quot;"><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNor=
mal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;=
sans-serif&quot;;color:#1f497d">Do you mean draft-hao-idr-flowspec-redirect=
-tunnel is to signal tunnel setup info? draft-hao-idr-flowspec-redirect-tun=
nel is to steer traffic to the tunnel instead of signal tunnel setup.<span>=
=C2=A0</span></span><span style=3D"font-size:11.0pt;font-family:&quot;Calib=
ri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div><div>=
<div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&qu=
ot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">I am not sure if the=
 reuse of draft-rosen-idr-tunnel-encaps-00 in the draft make you confused? =
We just hope to =C2=A0just reuses the attributes of to specify the tunnel t=
ype to help steering<span>=C2=A0</span></span><span style=3D"font-size:11.0=
pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></=
span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-s=
ize:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f=
497d">the traffic to tunnel. If this is not a good way, maybe we can define=
 new attributes.</span><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div><d=
iv><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:=
&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0</span><spa=
n style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-seri=
f&quot;"><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNorm=
al"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;s=
ans-serif&quot;;color:#1f497d">=C2=A0</span><span style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></sp=
an></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-siz=
e:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f49=
7d">Best Regards,</span><span style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div><=
div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family=
:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">Robin</span><spa=
n style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-seri=
f&quot;"><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNorm=
al"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;s=
ans-serif&quot;;color:#1f497d">=C2=A0</span><span style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></sp=
an></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-siz=
e:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f49=
7d">=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&=
quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div><div><di=
v><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;=
Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0</span><span styl=
e=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot=
;"><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><s=
pan style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-se=
rif&quot;;color:#1f497d">=C2=A0</span><span style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p=
></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5=
pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=
=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot=
;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div><div><div st=
yle=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in=
"><div><div><p class=3D"MsoNormal"><b><span lang=3D"ZH-CN" style=3D"font-si=
ze:10.0pt;font-family:SimSun">=E5=8F=91=E4=BB=B6=E4=BA=BA</span></b><b><spa=
n style=3D"font-size:10.0pt;font-family:SimSun">:</span></b><span><span sty=
le=3D"font-size:10.0pt;font-family:SimSun">=C2=A0</span></span><span style=
=3D"font-size:10.0pt;font-family:SimSun">Idr [<a href=3D"mailto:idr-bounces=
@ietf.org" target=3D"_blank"><span style=3D"color:purple">mailto:idr-bounce=
s@ietf.org</span></a>]<span>=C2=A0</span></span><b><span lang=3D"ZH-CN" sty=
le=3D"font-size:10.0pt;font-family:SimSun">=E4=BB=A3=E8=A1=A8</span></b><sp=
an><b><span style=3D"font-size:10.0pt;font-family:SimSun">=C2=A0</span></b>=
</span><span style=3D"font-size:10.0pt;font-family:SimSun">Susan Hares<br><=
/span><b><span lang=3D"ZH-CN" style=3D"font-size:10.0pt;font-family:SimSun"=
>=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4</span></b><b><span style=3D"font-size=
:10.0pt;font-family:SimSun">:</span></b><span><span style=3D"font-size:10.0=
pt;font-family:SimSun">=C2=A0</span></span><span style=3D"font-size:10.0pt;=
font-family:SimSun">2015</span><span lang=3D"ZH-CN" style=3D"font-size:10.0=
pt;font-family:SimSun">=E5=B9=B4</span><span style=3D"font-size:10.0pt;font=
-family:SimSun">10</span><span lang=3D"ZH-CN" style=3D"font-size:10.0pt;fon=
t-family:SimSun">=E6=9C=88</span><span style=3D"font-size:10.0pt;font-famil=
y:SimSun">25</span><span lang=3D"ZH-CN" style=3D"font-size:10.0pt;font-fami=
ly:SimSun">=E6=97=A5</span><span><span style=3D"font-size:10.0pt;font-famil=
y:SimSun">=C2=A0</span></span><span style=3D"font-size:10.0pt;font-family:S=
imSun">22:07<br></span><b><span lang=3D"ZH-CN" style=3D"font-size:10.0pt;fo=
nt-family:SimSun">=E6=94=B6=E4=BB=B6=E4=BA=BA</span></b><b><span style=3D"f=
ont-size:10.0pt;font-family:SimSun">:</span></b><span><span style=3D"font-s=
ize:10.0pt;font-family:SimSun">=C2=A0</span></span><span style=3D"font-size=
:10.0pt;font-family:SimSun"><a href=3D"mailto:idr@ietf.org" target=3D"_blan=
k"><span style=3D"color:purple">idr@ietf.org</span></a><br></span><b><span =
lang=3D"ZH-CN" style=3D"font-size:10.0pt;font-family:SimSun">=E6=8A=84=E9=
=80=81</span></b><b><span style=3D"font-size:10.0pt;font-family:SimSun">:</=
span></b><span><span style=3D"font-size:10.0pt;font-family:SimSun">=C2=A0</=
span></span><span style=3D"font-size:10.0pt;font-family:SimSun"><a href=3D"=
mailto:jgs@bgp.nu" target=3D"_blank"><span style=3D"color:purple">jgs@bgp.n=
u</span></a><br></span><b><span lang=3D"ZH-CN" style=3D"font-size:10.0pt;fo=
nt-family:SimSun">=E4=B8=BB=E9=A2=98</span></b><b><span style=3D"font-size:=
10.0pt;font-family:SimSun">:</span></b><span><span style=3D"font-size:10.0p=
t;font-family:SimSun">=C2=A0</span></span><span style=3D"font-size:10.0pt;f=
ont-family:SimSun">[Idr] IDR interim (10/26/2015) 10:00am - 11:30am ET upda=
te</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&q=
uot;sans-serif&quot;"><u></u><u></u></span></p></div></div></div></div><div=
><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></=
div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;=
font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">IDR WG members:<spa=
n>=C2=A0</span><u></u><u></u></span></p></div></div><div><div><p class=3D"M=
soNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&=
quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div=
><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;">Below is an updated agenda for the IDR=
 interim on 10/26/2015.<u></u><u></u></span></p></div></div><div><div><p cl=
ass=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri=
&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><=
div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,&quot;sans-serif&quot;">Sue<span>=C2=A0</span><u></u><=
u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=
=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
">=C2=A0<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNorma=
l"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;">------------<u></u><u></u></span></p></div></div><div><div>=
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;">IDR interim October 26, 2015<span>=C2=
=A0</span><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNor=
mal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;=
sans-serif&quot;">10:00 - 11:30am<span>=C2=A0</span><u></u><u></u></span></=
p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.=
0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u=
></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D=
"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">1=
. Chair&#39;s slides [10:00-10:05]<u></u><u></u></span></p></div></div><div=
><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></=
div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;=
font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">1. draft-litkowski-=
idr-flowspec-interfaceset-01.txt<u></u><u></u></span></p></div></div><div><=
div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quo=
t;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 speaker: Stephane Lito=
wski=C2=A0<span>=C2=A0</span><u></u><u></u></span></p></div></div><div><div=
><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=C2=A0Time: 10:05-10:15<u>=
</u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span st=
yle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&qu=
ot;">=C2=A0=C2=A0<span>=C2=A0</span><a href=3D"https://datatracker.ietf.org=
/doc/draft-litkowski-idr-flowspec-interfaceset/" target=3D"_blank"><span st=
yle=3D"color:purple">https://datatracker.ietf.org/doc/draft-litkowski-idr-f=
lowspec-interfaceset/</span></a><u></u><u></u></span></p></div></div><div><=
div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quo=
t;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0<span>=C2=A0</span><u><=
/u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span sty=
le=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quo=
t;">2. draft-hao-idr-flowspec-redirect-tunnel-00<u></u><u></u></span></p></=
div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;=
font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 Speake=
r: Weiguo Hao<u></u><u></u></span></p></div></div><div><div><p class=3D"Mso=
Normal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&qu=
ot;sans-serif&quot;">=C2=A0=C2=A0 Time: 10:15 - 10:25<span>=C2=A0</span><u>=
</u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span st=
yle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&qu=
ot;">=C2=A0=C2=A0=C2=A0<a href=3D"http://datatracker.ietf.org/doc/draft-hao=
-idr-flowspec-redirect-tunnel/" target=3D"_blank"><span style=3D"color:purp=
le">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/=
</span></a><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNo=
rmal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot=
;sans-serif&quot;">=C2=A0=C2=A0<span>=C2=A0</span><u></u><u></u></span></p>=
</div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0p=
t;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=C2=
=A0<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><s=
pan style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-se=
rif&quot;">3. draft-vandevelde-idr-flowspec-path-redirect<u></u><u></u></sp=
an></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-siz=
e:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=
=A0 Speaker: Gunter Van De Velde<u></u><u></u></span></p></div></div><div><=
div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quo=
t;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 Time: 10:25- 10:35<u><=
/u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span sty=
le=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quo=
t;">=C2=A0=C2=A0<span>=C2=A0</span><a href=3D"http://datatracker.ietf.org/d=
oc/draft-vandevelde-idr-flowspec-path-redirect/" target=3D"_blank"><span st=
yle=3D"color:purple">http://datatracker.ietf.org/doc/draft-vandevelde-idr-f=
lowspec-path-redirect/</span></a><u></u><u></u></span></p></div></div><div>=
<div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&qu=
ot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0<span>=C2=A0</span><u>=
</u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span st=
yle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&qu=
ot;">=C2=A0=C2=A0=C2=A0<u></u><u></u></span></p></div></div><div><div><p cl=
ass=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri=
&quot;,&quot;sans-serif&quot;">4. Draft Name: draft-hao-idr-flowspec-nvo3-0=
2<span>=C2=A0</span><u></u><u></u></span></p></div></div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=C2=A0Speaker: Weiguo Hao<u></u><u>=
</u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=
=C2=A0=C2=A0 Duration: 10:35-10:40<span>=C2=A0</span><u></u><u></u></span><=
/p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11=
.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=
=C2=A0<a href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo=
3/" target=3D"_blank"><span style=3D"color:purple">http://datatracker.ietf.=
org/doc/draft-hao-idr-flowspec-nvo3/</span></a><u></u><u></u></span></p></d=
iv></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;f=
ont-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0<span>=
=C2=A0</span><u></u><u></u></span></p></div></div><div><div><p class=3D"Mso=
Normal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&qu=
ot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><=
p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Cal=
ibri&quot;,&quot;sans-serif&quot;">5. draft-liang-idr-bgp-flowspec-label-01=
.txt.<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal">=
<span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-=
serif&quot;">=C2=A0=C2=A0 Speaker:<span>=C2=A0</span><u></u><u></u></span><=
/p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11=
.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=
=C2=A0Duration: 10:40-10:45<span>=C2=A0</span><u></u><u></u></span></p></di=
v></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0<a href=
=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/" ta=
rget=3D"_blank"><span style=3D"color:purple">http://datatracker.ietf.org/do=
c/draft-liang-idr-bgp-flowspec-label/</span></a><u></u><u></u></span></p></=
div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;=
font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0<span>=
=C2=A0</span><u></u><u></u></span></p></div></div><div><div><p class=3D"Mso=
Normal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&qu=
ot;sans-serif&quot;">6. draft-liang-idr-bgp-flowspec-time<u></u><u></u></sp=
an></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-siz=
e:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=
=A0 presenter: Jianjie You<u></u><u></u></span></p></div></div><div><div><p=
 class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 time: 10:45-10:55<u></u><u><=
/u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"f=
ont-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=
=A0=C2=A0<span>=C2=A0</span><a href=3D"http://datatracker.ietf.org/doc/draf=
t-liang-idr-bgp-flowspec-time/" target=3D"_blank"><span style=3D"color:purp=
le">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/</spa=
n></a><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"=
><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans=
-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;">7. Draft Name: draft-li-idr-mpls-path-programmi=
ng-02<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal">=
<span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-=
serif&quot;">=C2=A0=C2=A0 Speaker: Zhenbin Li<u></u><u></u></span></p></div=
></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;fon=
t-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 Duration:=
 10:55-11:05<span>=C2=A0</span><u></u><u></u></span></p></div></div><div><d=
iv><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot=
;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=C2=A0<a href=3D"http://=
datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/" target=3D"_bl=
ank"><span style=3D"color:purple">http://datatracker.ietf.org/doc/draft-li-=
idr-mpls-path-programming/</span></a><u></u><u></u></span></p></div></div><=
div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p=
></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0=
pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">7. Draft Name: d=
raft-li-idr-flowspec-rpd-01<u></u><u></u></span></p></div></div><div><div><=
p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Cal=
ibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 Speaker: Shunwan Zhuang<u><=
/u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span sty=
le=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quo=
t;">=C2=A0=C2=A0 Duration: 11:05 - 11:15<span>=C2=A0</span><u></u><u></u></=
span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-s=
ize:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=
=C2=A0=C2=A0<a href=3D"http://datatracker.ietf.org/doc/draft-li-idr-flowspe=
c-rpd/" target=3D"_blank"><span style=3D"color:purple">http://datatracker.i=
etf.org/doc/draft-li-idr-flowspec-rpd/</span></a><u></u><u></u></span></p><=
/div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0<span>=
=C2=A0</span><u></u><u></u></span></p></div></div><div><div><p class=3D"Mso=
Normal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&qu=
ot;sans-serif&quot;">8.=C2=A0 Discussion of Flowspec drafts<u></u><u></u></=
span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-s=
ize:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=
=C2=A0=C2=A0 11:15 - 11:30am<span>=C2=A0</span><u></u><u></u></span></p></d=
iv></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;f=
ont-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u>=
</span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font=
-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=
Meeting Web-ex information<span>=C2=A0</span><u></u><u></u></span></p></div=
></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;fon=
t-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0Monday, October =
26, 2015<span>=C2=A0</span><u></u><u></u></span></p></div></div><div><div><=
p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Cal=
ibri&quot;,&quot;sans-serif&quot;">10:00 am=C2=A0 |=C2=A0 Eastern Daylight =
Time (New York, GMT-04:00)=C2=A0 |=C2=A0 2 hrs<span>=C2=A0</span><u></u><u>=
</u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=
=C2=A0<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"=
><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans=
-serif&quot;">webex infor:<span>=C2=A0</span><u></u><u></u></span></p></div=
></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;fon=
t-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><a href=3D"https://iet=
f.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f" target=3D"=
_blank"><span style=3D"color:purple">https://ietf.webex.com/ietf/j.php?MTID=
=3Dmae6cf241d3adf214033e599c3ff3143f</span></a><u></u><u></u></span></p></d=
iv></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;f=
ont-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u>=
</span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font=
-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Meetin=
g number: =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 644 =
964 970<span>=C2=A0</span><u></u><u></u></span></p></div></div><div><div><p=
 class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,&quot;sans-serif&quot;">Meeting password:=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 flow.in.nets<u></u><u></u></span></p></div></div><=
div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p=
></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0=
pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u>=
</u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Jo=
in by phone<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNo=
rmal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot=
;sans-serif&quot;"><a href=3D"tel:1-877-668-4493" value=3D"+18776684493" ta=
rget=3D"_blank">1-877-668-4493</a> Call-in toll free number (US/Canada)<u><=
/u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span sty=
le=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quo=
t;"><a href=3D"tel:1-650-479-3208" value=3D"+16504793208" target=3D"_blank"=
>1-650-479-3208</a> Call-in toll number (US/Canada)<u></u><u></u></span></p=
></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0=
pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Access code: 644=
 964 970<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNorma=
l"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p cla=
ss=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&=
quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div></=
div></div></div><div><p class=3D"MsoNormal">_______________________________=
________________<br>Idr mailing list<br><a href=3D"mailto:Idr@ietf.org" tar=
get=3D"_blank"><span style=3D"color:purple">Idr@ietf.org</span></a><br><a h=
ref=3D"https://www.ietf.org/mailman/listinfo/idr" target=3D"_blank"><span s=
tyle=3D"color:purple">https://www.ietf.org/mailman/listinfo/idr</span></a><=
span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-s=
erif&quot;"><u></u><u></u></span></p></div></div></blockquote></div><div><p=
 class=3D"MsoNormal">=C2=A0<span style=3D"font-size:11.0pt;font-family:&quo=
t;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div><p c=
lass=3D"MsoNormal">&lt;Hares-Discussion of Flowspec.pdf&gt;<u></u><u></u></=
p></div></blockquote></div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><=
/div></div></div></div><br>_______________________________________________<=
br>
Idr mailing list<br>
<a href=3D"mailto:Idr@ietf.org">Idr@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" rel=3D"noreferrer" ta=
rget=3D"_blank">https://www.ietf.org/mailman/listinfo/idr</a><br>
<br></blockquote></div><br></div>

--047d7b5d23e2457a450523275c7c--


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Subject: [Idr] interim recording for IDR interim on 10/26/2016
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Topic: 

IDR interim on Oct 26, 2015-20151026 1358-1 

Create time: 

10/26/15 11:40 am 

File size: 

63.06MB 

Duration: 

1 hour 38 minutes 

Security: 

https://ietf.webex.com/tc3000/trainingcenter/html/img/1x1.gif
https://ietf.webex.com/tc3000/trainingcenter/html/img/1x1.gif  

Description: 

Streaming recording link: 

https://ietf.webex.com/ietf/ldr.php?RCID=b5b63ca8b6f36d4cffe9888563a3a397 

Download recording link: 

https://ietf.webex.com/ietf/lsr.php?RCID=5bb0d179e2f20df81cff9159f1010f50 

 


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
class=3Dcol-sm-3>Topic:</span> <o:p></o:p></p><p class=3DMsoNormal>IDR =
interim on Oct 26, 2015-20151026 1358-1 <o:p></o:p></p><p =
class=3DMsoNormal><span class=3Dcol-sm-3>Create time:</span> =
<o:p></o:p></p><p class=3DMsoNormal>10/26/15 11:40 am <o:p></o:p></p><p =
class=3DMsoNormal><span class=3Dcol-sm-3>File size:</span> =
<o:p></o:p></p><p class=3DMsoNormal>63.06MB <o:p></o:p></p><p =
class=3DMsoNormal><span class=3Dcol-sm-3>Duration:</span> =
<o:p></o:p></p><p class=3DMsoNormal>1 hour 38 minutes <o:p></o:p></p><p =
class=3DMsoNormal><span class=3Dcol-sm-3>Security:</span> =
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Date: Wed, 28 Oct 2015 11:17:36 +0100
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To: Robert Raszuk <robert@raszuk.net>
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Cc: idr wg <idr@ietf.org>, "John G. Scudder" <jgs@bgp.nu>, Susan Hares <shares@ndzh.com>
Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiBJRFIgaW50ZXJpbSAoMTAvMjYvMjAxNSkgMTA6MDBh?= =?utf-8?q?m_-_11=3A30am_ET_update?=
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Robert,

Happy to change the =E2=80=9CPATH_ID=E2=80=9D name into some other name =
if it brings down the misunderstandings=E2=80=A6
Would you have a proposal?=20

G/


> On 28 Oct 2015, at 11:07, Robert Raszuk <robert@raszuk.net> wrote:
>=20
> Hi Sue,
>=20
> > The issue is that =E2=80=9Cpath-id=E2=80=9D and your concepts of =
paths=20
> > is similar to many of the MPLS and segment routing path ids.
>=20
> Well as it turns out from our discussion yesterday Gunter clarified =
that the PATH_ID he used is just an reference to an indirection.=20
>=20
> Hence as such it really has not much in common with what most folks =
understand by PATH_ID.=20
>=20
> Perhaps if he just renames it to something else (less confusing) his =
draft will go forward quite smooth :)=20
>=20
> Cheers,
> R.
>=20
>=20
>=20
>=20
> On Wed, Oct 28, 2015 at 10:50 AM, Susan Hares <shares@ndzh.com =
<mailto:shares@ndzh.com>> wrote:
> Gunter:
>=20
> =20
>=20
> My apologies =E2=80=93 since the slide I referenced was the chair=E2=80=99=
s discussion generating slide =E2=80=93 I did not put <IDR chair hat on> =
- I should have.
>=20
> =20
>=20
> <chair hat on>
>=20
> My chair=E2=80=99s discussion was to inspire conversation on you =
perception of the path-id versus the draft-li-mpls-path-programming.
>=20
> =20
>=20
> I was looking to solicit the following comment from you. =20
>=20
> =20
>=20
> =E2=80=9CYou clearly understand that =
draft-vandevelde-idr-flowspec-path-redirect and =
draft-li-idr-mpls-path-programming are orthogonal to each other, not?=E2=80=
=9D
>=20
> =20
>=20
> My job as chair is to get people talking about their view of the other =
proposal.
>=20
> <chair hat off>
>=20
> =20
>=20
> The issue is that =E2=80=9Cpath-id=E2=80=9D and your concepts of paths =
is similar to many of the MPLS and segment routing path ids.   =
Draft-li-idr-mpls-path-programming seeks to generalize segment routing =
(see Robin=E2=80=99s slides) using a variety of BGP and MPLS.   =20
>=20
> =20
>=20
> As Lucy=E2=80=99s slides pointed out =E2=80=93 we have an IP and =
non-IP traffic.  My understanding is that your path-id is for just IP =
traffic.  You comment below would suggest both.
>=20
> =20
>=20
> Best wishes,
>=20
> Sue
>=20
> =20
>=20
> From: Idr [mailto:idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>] =
On Behalf Of Gunter Van De Velde
> Sent: Wednesday, October 28, 2015 5:38 AM
>=20
>=20
> To: Susan Hares
> Cc: idr wg; jgs@bgp.nu <mailto:jgs@bgp.nu>
> Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//
> =E7=AD=94=E5=A4=8D: IDR interim (10/26/2015) 10:00am - 11:30am ET =
update
>=20
> =20
>=20
> Hi Sue,
>=20
> =20
>=20
> [Please indicate when you are speaking as IDR chair or when you are =
speaking as contributor/affiliation=E2=80=A6 i am confused]
>=20
> =20
>=20
> I did a search for forwarding ID in the referenced document and i do =
not see it?
>=20
> =20
>=20
> You clearly understand that =
draft-vandevelde-idr-flowspec-path-redirect and =
draft-li-idr-mpls-path-programming are orthogonal to each other, not?
>=20
> =E2=80=9Cdraft-li-idr-mpls-path-programming " specifies how BGP uses =
attributes to signal a tunnel and how a tunnel is constructed through =
the network, while on the other end of the=20
>=20
> spectrum draft-vandevelde-idr-flowspec-path-redirect specifies =
flowspec based traffic steering onto a redirect path and signals no =
tunnel attributes at all.
>=20
> =20
>=20
> In draft-vandevelde-idr-flowspec-path-redirect the local PATH_ID table =
can be constructed by many means and is outside the scope of the =
document:
>=20
> =20
>=20
> * draft-li-idr-mpls-path-programming
>=20
> * manual config
>=20
> * netconf/yang
>=20
> * traditional routing
>=20
> * voodoo=20
>=20
> * etc...
>=20
> =20
>=20
> The end result: redirect-to-path and =
draft-li-idr-mpls-path-programming are orthogonal to each other.
>=20
> =20
>=20
> Kind Regards,
>=20
> G/
>=20
> =20
>=20
> =20
>=20
> On 28 Oct 2015, at 00:30, Susan Hares <shares@ndzh.com =
<mailto:shares@ndzh.com>> wrote:
>=20
> =20
>=20
> Gunter:=20
>=20
> =20
>=20
> Robin=E2=80=99s proposal is =
http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/ =
<http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/>
> =20
>=20
> See my attached comparison from the interim.  You can also download =
Robin=E2=80=99s slides from the interim.  =20
>=20
> =20
>=20
> Sue=20
>=20
> =20
>=20
> From: Idr [mailto:idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>] =
On Behalf Of Gunter Van De Velde
> Sent: Tuesday, October 27, 2015 4:12 PM
> To: Susan Hares
> Cc: idr wg; jgs@bgp.nu <mailto:jgs@bgp.nu>
> Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
>=20
> =20
>=20
> Hi Sue,
>=20
> =20
>=20
> Would you know where to find Forwarding ID described in =
draft-hao-idr-flowspec-redirect-tunnel to make assessment?=20
>=20
> There is no mentioning of this concept at all in the document? =
Alternatively, what i found is signalling of tunnel end-point =
(IPv4/IPv6) and=20
>=20
> some tunnel setup information (tunnel encap attribute and a new MPP TE =
tunnel attribute).
>=20
> =20
>=20
> Brgds,
>=20
> G/
>=20
> =20
>=20
> =20
>=20
> =20
>=20
> =20
>=20
> =20
>=20
> =20
>=20
> On 27 Oct 2015, at 19:28, Susan Hares <shares@ndzh.com =
<mailto:shares@ndzh.com>> wrote:
>=20
> =20
>=20
> Gunter:=20
>=20
> =20
>=20
> Can you let me know the difference between the Path ID in your =
proposal and Robin=E2=80=99s Forwarding ID that is a generalized segment =
ID?=20
>=20
> =20
>=20
> Sue Hares
>=20
> =20
>=20
> From: VAN DE VELDE, Gunter (Gunter) =
[mailto:gunter.van_de_velde@alcatel-lucent.com =
<mailto:gunter.van_de_velde@alcatel-lucent.com>]=20
> Sent: Monday, October 26, 2015 12:26 PM
> To: Lizhenbin; Susan Hares; idr@ietf.org <mailto:idr@ietf.org>
> Cc: jgs@bgp.nu <mailto:jgs@bgp.nu>
> Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
>=20
> =20
>=20
> Hi Robin,
>=20
> =20
>=20
> Thanks for your note.
>=20
> =20
>=20
> A tunnel is not always going over shortest path. Some tunnels are TE =
tunnels and are deliberately not going over a shortest path. This is =
something that draft-rosen-idr-tunnel-encaps-00 will not help to signal =
because the tunnel-encap attribute indicates tunnel parameters used by =
the tail-end.
>=20
> =20
>=20
> If a redirect tunnel represents a particular redirect/steering service =
(better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then =
it does become rather complex for BGP as signalling technology because a =
tunnel relationship is a unique between 'a headend' and =E2=80=98a =
tailed' device. It seems better to leave tunnel-setup to dedicated =
tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.
>=20
> =20
>=20
> The draft redirect-to-PATH_ID is providing the means to signal a =
flow-based redirect/steering service, and have each recipient router =
identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable fashion.
>=20
> =20
>=20
> Kind Regards,
>=20
> G/
>=20
> =20
>=20
> =20
>=20
> =20
>=20
> From:  Idr <idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>> on =
behalf of Lizhenbin <lizhenbin@huawei.com <mailto:lizhenbin@huawei.com>>
> Date: Monday 26 October 2015 at 16:51
> To: Susan Hares <shares@ndzh.com <mailto:shares@ndzh.com>>, =
"idr@ietf.org <mailto:idr@ietf.org>" <idr@ietf.org =
<mailto:idr@ietf.org>>
> Cc: "jgs@bgp.nu <mailto:jgs@bgp.nu>" <jgs@bgp.nu <mailto:jgs@bgp.nu>>
> Subject: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
>=20
> =20
>=20
> Hi Gunter,
>=20
> Regarding your presentation, I have following comments:
>=20
> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel =
setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic =
to the tunnel instead of signal tunnel setup.=20
>=20
> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the =
draft make you confused? We just hope to  just reuses the attributes of =
to specify the tunnel type to help steering=20
>=20
> the traffic to tunnel. If this is not a good way, maybe we can define =
new attributes.
>=20
> =20
>=20
> =20
>=20
> Best Regards,
>=20
> Robin
>=20
> =20
>=20
> =20
>=20
> =20
>=20
> =20
>=20
> =20
>=20
> =E5=8F=91=E4=BB=B6=E4=BA=BA: Idr [mailto:idr-bounces@ietf.org =
<mailto:idr-bounces@ietf.org>] =E4=BB=A3=E8=A1=A8 Susan Hares
> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8825=E6=97=A5=
 22:07
> =E6=94=B6=E4=BB=B6=E4=BA=BA: idr@ietf.org <mailto:idr@ietf.org>
> =E6=8A=84=E9=80=81: jgs@bgp.nu <mailto:jgs@bgp.nu>
> =E4=B8=BB=E9=A2=98: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am =
ET update
>=20
> =20
>=20
> IDR WG members:=20
>=20
> =20
>=20
> Below is an updated agenda for the IDR interim on 10/26/2015.
>=20
> =20
>=20
> Sue=20
>=20
> =20
>=20
> ------------
>=20
> IDR interim October 26, 2015=20
>=20
> 10:00 - 11:30am=20
>=20
> =20
>=20
> 1. Chair's slides [10:00-10:05]
>=20
> =20
>=20
> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>=20
>    speaker: Stephane Litowski =20
>=20
>    Time: 10:05-10:15
>=20
>    =
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset=
/ =
<https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/>
>   =20
>=20
> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>=20
>    Speaker: Weiguo Hao
>=20
>    Time: 10:15 - 10:25=20
>=20
>    =
http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/>
>   =20
>=20
>   =20
>=20
> 3. draft-vandevelde-idr-flowspec-path-redirect
>=20
>    Speaker: Gunter Van De Velde
>=20
>    Time: 10:25- 10:35
>=20
>    =
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirec=
t/ =
<http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/>
>   =20
>=20
>   =20
>=20
> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02=20
>=20
>    Speaker: Weiguo Hao
>=20
>    Duration: 10:35-10:40=20
>=20
>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/>
>   =20
>=20
> =20
>=20
> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>=20
>    Speaker:=20
>=20
>    Duration: 10:40-10:45=20
>=20
>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/>
>   =20
>=20
> 6. draft-liang-idr-bgp-flowspec-time
>=20
>    presenter: Jianjie You
>=20
>    time: 10:45-10:55
>=20
>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/>
> =20
>=20
> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>=20
>    Speaker: Zhenbin Li
>=20
>    Duration: 10:55-11:05=20
>=20
>    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/ =
<http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/>
> =20
>=20
> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>=20
>    Speaker: Shunwan Zhuang
>=20
>    Duration: 11:05 - 11:15=20
>=20
>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/ =
<http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/>
>   =20
>=20
> 8.  Discussion of Flowspec drafts
>=20
>     11:15 - 11:30am=20
>=20
> =20
>=20
>  Meeting Web-ex information=20
>=20
>  Monday, October 26, 2015=20
>=20
> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs=20
>=20
> =20
>=20
> webex infor:=20
>=20
> =
https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f=
 =
<https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f>
> =20
>=20
> Meeting number:            644 964 970=20
>=20
> Meeting password:         flow.in.nets
>=20
> =20
>=20
> =20
>=20
> Join by phone
>=20
> 1-877-668-4493 <tel:1-877-668-4493> Call-in toll free number =
(US/Canada)
>=20
> 1-650-479-3208 <tel:1-650-479-3208> Call-in toll number (US/Canada)
>=20
> Access code: 644 964 970
>=20
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>=20
> =20
>=20
> _______________________________________________
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> https://www.ietf.org/mailman/listinfo/idr =
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> <Hares-Discussion of Flowspec.pdf>
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">Robert,<div class=3D""><br class=3D""></div><div =
class=3D"">Happy to change the =E2=80=9CPATH_ID=E2=80=9D name into some =
other name if it brings down the misunderstandings=E2=80=A6</div><div =
class=3D"">Would you have a proposal?&nbsp;</div><div class=3D""><br =
class=3D""></div><div class=3D""><div class=3D"">G/</div><div =
class=3D""><br class=3D""></div><div class=3D""><br =
class=3D""><div><blockquote type=3D"cite" class=3D""><div class=3D"">On =
28 Oct 2015, at 11:07, Robert Raszuk &lt;<a =
href=3D"mailto:robert@raszuk.net" class=3D"">robert@raszuk.net</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><div =
dir=3D"ltr" class=3D""><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Hi =
Sue,</div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br =
class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font-size:14.=
6667px" class=3D"">&gt; The issue is that =E2=80=9Cpath-id=E2=80=9D and =
your concepts of paths&nbsp;</span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font-size:14.=
6667px" class=3D"">&gt; is similar to many of the MPLS and segment =
routing path ids.</span><br class=3D""></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font-size:14.=
6667px" class=3D""><br class=3D""></span></div><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font-size:14.=
6667px" class=3D"">Well as it turns out from our discussion yesterday =
Gunter clarified that the PATH_ID he used is just an reference to an =
indirection.&nbsp;</span></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font-size:14.=
6667px" class=3D""><br class=3D""></span></div><div =
class=3D"gmail_default"><font color=3D"#1f497d" face=3D"Calibri, =
sans-serif" class=3D""><span style=3D"font-size:14.6667px" =
class=3D"">Hence as such it really has not much in common with what most =
folks understand by PATH_ID.&nbsp;</span></font></div><div =
class=3D"gmail_default"><font color=3D"#1f497d" face=3D"Calibri, =
sans-serif" class=3D""><span style=3D"font-size:14.6667px" class=3D""><br =
class=3D""></span></font></div><div class=3D"gmail_default"><font =
color=3D"#1f497d" face=3D"Calibri, sans-serif" class=3D""><span =
style=3D"font-size:14.6667px" class=3D"">Perhaps if he just renames it =
to something else (less confusing) his draft will go forward quite =
smooth :)&nbsp;</span></font></div><div class=3D"gmail_default"><font =
color=3D"#1f497d" face=3D"Calibri, sans-serif" class=3D""><span =
style=3D"font-size:14.6667px" class=3D""><br =
class=3D""></span></font></div><div class=3D"gmail_default"><font =
color=3D"#1f497d" face=3D"Calibri, sans-serif" class=3D""><span =
style=3D"font-size:14.6667px" class=3D"">Cheers,<br =
class=3D"">R.</span></font></div><div class=3D"gmail_default"><font =
color=3D"#1f497d" face=3D"Calibri, sans-serif" class=3D""><span =
style=3D"font-size:14.6667px" class=3D""><br =
class=3D""></span></font></div><div class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font-size:14.=
6667px" class=3D""><br class=3D""></span></div><div =
class=3D"gmail_default" =
style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span =
style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font-size:14.=
6667px" class=3D""><br class=3D""></span></div></div><div =
class=3D"gmail_extra"><br class=3D""><div class=3D"gmail_quote">On Wed, =
Oct 28, 2015 at 10:50 AM, Susan Hares <span dir=3D"ltr" class=3D"">&lt;<a =
href=3D"mailto:shares@ndzh.com" target=3D"_blank" =
class=3D"">shares@ndzh.com</a>&gt;</span> wrote:<br class=3D""><blockquote=
 class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc =
solid;padding-left:1ex"><div lang=3D"EN-US" link=3D"blue" vlink=3D"purple"=
 class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Gunter: <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">My apologies =E2=80=93 since the slide =
I referenced was the chair=E2=80=99s discussion generating slide =E2=80=93=
 I did not put &lt;IDR chair hat on&gt; - I should have. <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&lt;chair hat on&gt; <u class=3D""></u><u=
 class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">My chair=E2=80=99s discussion was to =
inspire conversation on you perception of the path-id versus the =
draft-li-mpls-path-programming. <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">I was looking to solicit the following =
comment from you. &nbsp;<u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><u class=3D""></u>&nbsp;<u class=3D""></u></p><p =
class=3D"MsoNormal">=E2=80=9CYou clearly understand that =
draft-vandevelde-idr-flowspec-path-redirect =
and&nbsp;draft-li-idr-mpls-path-programming are orthogonal to each =
other, not?=E2=80=9D <u class=3D""></u><u class=3D""></u></p><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">My job as chair is to get people =
talking about their view of the other proposal. <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&lt;chair hat off&gt; <u =
class=3D""></u><u class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">The issue is that =E2=80=9Cpath-id=E2=80=9D=
 and your concepts of paths is similar to many of the MPLS and segment =
routing path ids.&nbsp; &nbsp;Draft-li-idr-mpls-path-programming seeks =
to generalize segment routing (see Robin=E2=80=99s slides) using a =
variety of BGP and MPLS. &nbsp;&nbsp;&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">As Lucy=E2=80=99s slides pointed out =
=E2=80=93 we have an IP and non-IP traffic.&nbsp; My understanding is =
that your path-id is for just IP traffic.&nbsp; You comment below would =
suggest both. <u class=3D""></u><u class=3D""></u></span></p><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Best wishes, <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Sue <u class=3D""></u><u =
class=3D""></u></span></p><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D""><u class=3D""></u>&nbsp;<u =
class=3D""></u></span></p><div class=3D""><div =
style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in =
0in 0in" class=3D""><p class=3D"MsoNormal"><b class=3D""><span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D"">From:</span></b><span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D""> Idr [mailto:<a href=3D"mailto:idr-bounces@ietf.org" =
target=3D"_blank" class=3D"">idr-bounces@ietf.org</a>] <b class=3D"">On =
Behalf Of </b>Gunter Van De Velde<br class=3D""><b class=3D"">Sent:</b> =
Wednesday, October 28, 2015 5:38 AM</span></p><div class=3D""><div =
class=3D"h5"><br class=3D""><b class=3D"">To:</b> Susan Hares<br =
class=3D""><b class=3D"">Cc:</b> idr wg; <a href=3D"mailto:jgs@bgp.nu" =
target=3D"_blank" class=3D"">jgs@bgp.nu</a><br class=3D""><b =
class=3D"">Subject:</b> Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</div></div><span =
style=3D"font-size:10.0pt;font-family:&quot;MS UI =
Gothic&quot;,&quot;sans-serif&quot;" class=3D"">=E7=AD=94=E5=A4=8D</span><=
span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D"">: IDR interim (10/26/2015) 10:00am - 11:30am ET =
update<u class=3D""></u><u class=3D""></u></span><div class=3D""><br =
class=3D"webkit-block-placeholder"></div></div></div><div class=3D""><div =
class=3D"h5"><p class=3D"MsoNormal"><u class=3D""></u>&nbsp;<u =
class=3D""></u></p><div class=3D""><p class=3D"MsoNormal">Hi Sue,<u =
class=3D""></u><u class=3D""></u></p></div><div class=3D""><p =
class=3D"MsoNormal"><u class=3D""></u>&nbsp;<u =
class=3D""></u></p></div><div class=3D""><p class=3D"MsoNormal">[Please =
indicate when you are speaking as IDR chair or when you are speaking as =
contributor/affiliation=E2=80=A6 i am confused]<u class=3D""></u><u =
class=3D""></u></p></div><div class=3D""><p class=3D"MsoNormal"><u =
class=3D""></u>&nbsp;<u class=3D""></u></p></div><div class=3D""><p =
class=3D"MsoNormal">I did a search for forwarding ID in the referenced =
document and i do not see it?<u class=3D""></u><u =
class=3D""></u></p></div><div class=3D""><p class=3D"MsoNormal"><u =
class=3D""></u>&nbsp;<u class=3D""></u></p></div><div class=3D""><p =
class=3D"MsoNormal">You clearly understand that =
draft-vandevelde-idr-flowspec-path-redirect =
and&nbsp;draft-li-idr-mpls-path-programming are orthogonal to each =
other, not?<u class=3D""></u><u class=3D""></u></p></div><div =
class=3D""><p class=3D"MsoNormal">=E2=80=9Cdraft-li-idr-mpls-path-programm=
ing " specifies how BGP uses attributes to signal a tunnel and how a =
tunnel is constructed through the network, while on the other end of =
the&nbsp;<u class=3D""></u><u class=3D""></u></p></div><div class=3D""><p =
class=3D"MsoNormal">spectrum draft-vandevelde-idr-flowspec-path-redirect =
specifies flowspec based traffic steering onto a redirect path and =
signals no tunnel attributes at all.<u class=3D""></u><u =
class=3D""></u></p></div><div class=3D""><p class=3D"MsoNormal"><u =
class=3D""></u>&nbsp;<u class=3D""></u></p></div><div class=3D""><p =
class=3D"MsoNormal">In draft-vandevelde-idr-flowspec-path-redirect the =
local PATH_ID table can be constructed by many means and is outside the =
scope of the document:<u class=3D""></u><u class=3D""></u></p></div><div =
class=3D""><p class=3D"MsoNormal"><u class=3D""></u>&nbsp;<u =
class=3D""></u></p></div><div class=3D""><p =
class=3D"MsoNormal">*&nbsp;draft-li-idr-mpls-path-programming<u =
class=3D""></u><u class=3D""></u></p></div><div class=3D""><p =
class=3D"MsoNormal">* manual config<u class=3D""></u><u =
class=3D""></u></p></div><div class=3D""><p class=3D"MsoNormal">* =
netconf/yang<u class=3D""></u><u class=3D""></u></p></div><div =
class=3D""><p class=3D"MsoNormal">* traditional routing<u =
class=3D""></u><u class=3D""></u></p></div><div class=3D""><p =
class=3D"MsoNormal">* voodoo&nbsp;<u class=3D""></u><u =
class=3D""></u></p></div><div class=3D""><p class=3D"MsoNormal">* =
etc...<u class=3D""></u><u class=3D""></u></p></div><div class=3D""><p =
class=3D"MsoNormal"><u class=3D""></u>&nbsp;<u =
class=3D""></u></p></div><div class=3D""><p class=3D"MsoNormal">The end =
result: redirect-to-path and draft-li-idr-mpls-path-programming are =
orthogonal to each other.<u class=3D""></u><u =
class=3D""></u></p></div><div class=3D""><p class=3D"MsoNormal"><u =
class=3D""></u>&nbsp;<u class=3D""></u></p></div><div class=3D""><p =
class=3D"MsoNormal">Kind Regards,<u class=3D""></u><u =
class=3D""></u></p></div><div class=3D""><p class=3D"MsoNormal">G/<u =
class=3D""></u><u class=3D""></u></p></div><div class=3D""><p =
class=3D"MsoNormal"><u class=3D""></u>&nbsp;<u class=3D""></u></p></div><p=
 class=3D"MsoNormal"><u class=3D""></u>&nbsp;<u class=3D""></u></p><div =
class=3D""><blockquote style=3D"margin-top:5.0pt;margin-bottom:5.0pt" =
class=3D""><div class=3D""><p class=3D"MsoNormal">On 28 Oct 2015, at =
00:30, Susan Hares &lt;<a href=3D"mailto:shares@ndzh.com" =
target=3D"_blank" class=3D"">shares@ndzh.com</a>&gt; wrote:<u =
class=3D""></u><u class=3D""></u></p></div><p class=3D"MsoNormal"><u =
class=3D""></u>&nbsp;<u class=3D""></u></p><div class=3D""><div =
class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Gunter:<span =
class=3D"">&nbsp;</span></span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Robin=E2=80=99s proposal is<span =
class=3D"">&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming=
/" target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</span></a></span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">See my attached comparison from the =
interim.&nbsp; You can also download Robin=E2=80=99s slides from the =
interim.&nbsp; &nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Sue<span =
class=3D"">&nbsp;</span></span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div><div class=3D""><div =
style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in =
0in 0in" class=3D""><div class=3D""><p class=3D"MsoNormal"><b =
class=3D""><span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D"">From:</span></b><span class=3D""><span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D"">&nbsp;</span></span><span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D"">Idr [<a href=3D"mailto:idr-bounces@ietf.org" =
target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">mailto:idr-bounces@ietf.org</span></a>]<span =
class=3D"">&nbsp;</span><b class=3D"">On Behalf Of<span =
class=3D"">&nbsp;</span></b>Gunter Van De Velde<br class=3D""><b =
class=3D"">Sent:</b><span class=3D"">&nbsp;</span>Tuesday, October 27, =
2015 4:12 PM<br class=3D""><b class=3D"">To:</b><span =
class=3D"">&nbsp;</span>Susan Hares<br class=3D""><b =
class=3D"">Cc:</b><span class=3D"">&nbsp;</span>idr wg;<span =
class=3D"">&nbsp;</span><a href=3D"mailto:jgs@bgp.nu" target=3D"_blank" =
class=3D""><span style=3D"color:purple" =
class=3D"">jgs@bgp.nu</span></a><br class=3D""><b =
class=3D"">Subject:</b><span class=3D"">&nbsp;</span>Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D"font-size:10.0pt;font-family:&quot;MS UI =
Gothic&quot;,&quot;sans-serif&quot;" class=3D"">=E7=AD=94=E5=A4=8D</span><=
span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D"">: IDR interim (10/26/2015) 10:00am - 11:30am ET =
update</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">Hi Sue,<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Times&quot;,&quot;serif&quot;"=
 class=3D"">Would you know where to find Forwarding ID described =
in&nbsp;<span style=3D"background:white" =
class=3D"">draft-hao-idr-flowspec-redirect-tunnel&nbsp;to =
make&nbsp;assessment?&nbsp;</span></span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Times&quot;,&quot;serif&quot;;=
background:white" class=3D"">There&nbsp;is no mentioning of this concept =
at all in the document?&nbsp;</span><span =
style=3D"font-size:10.5pt;font-family:&quot;Times&quot;,&quot;serif&quot;"=
 class=3D"">Alternatively, what i found is signalling of tunnel =
end-point (IPv4/IPv6) and&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Times&quot;,&quot;serif&quot;"=
 class=3D"">some tunnel setup information (tunnel encap attribute and a =
new MPP TE tunnel attribute).</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">Brgds,<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">G/<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div><div class=3D""><blockquote =
style=3D"margin-top:5.0pt;margin-bottom:5.0pt" class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">On 27 Oct 2015, at 19:28, Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com" target=3D"_blank" class=3D""><span =
style=3D"color:purple" class=3D"">shares@ndzh.com</span></a>&gt; =
wrote:<u class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div><div class=3D""><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Gunter:<span =
class=3D"">&nbsp;</span></span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Can you let me know the difference =
between the Path ID in your proposal and Robin=E2=80=99s Forwarding ID =
that is a generalized segment ID?<span =
class=3D"">&nbsp;</span></span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Sue Hares</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div =
style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in =
0in 0in" class=3D""><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><b class=3D""><span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D"">From:</span></b><span class=3D""><span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D"">&nbsp;</span></span><span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D"">VAN DE VELDE, Gunter (Gunter) [<a =
href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_blank" =
class=3D""><span style=3D"color:purple" =
class=3D"">mailto:gunter.van_de_velde@alcatel-lucent.com</span></a>]<span =
class=3D"">&nbsp;</span><br class=3D""><b class=3D"">Sent:</b><span =
class=3D"">&nbsp;</span>Monday, October 26, 2015 12:26 PM<br class=3D""><b=
 class=3D"">To:</b><span class=3D"">&nbsp;</span>Lizhenbin; Susan =
Hares;<span class=3D"">&nbsp;</span><a href=3D"mailto:idr@ietf.org" =
target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">idr@ietf.org</span></a><br class=3D""><b =
class=3D"">Cc:</b><span class=3D"">&nbsp;</span><a =
href=3D"mailto:jgs@bgp.nu" target=3D"_blank" class=3D""><span =
style=3D"color:purple" class=3D"">jgs@bgp.nu</span></a><br class=3D""><b =
class=3D"">Subject:</b><span class=3D"">&nbsp;</span>Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D"font-size:10.0pt;font-family:&quot;MS UI =
Gothic&quot;,&quot;sans-serif&quot;" class=3D"">=E7=AD=94=E5=A4=8D</span><=
span =
style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&=
quot;" class=3D"">: IDR interim (10/26/2015) 10:00am - 11:30am ET =
update</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div></div><div class=3D""><div =
class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><div=
 class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">Hi Robin,</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">Thanks for your note.</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">A tunnel is not always going over shortest path. Some =
tunnels are TE tunnels and are deliberately not going over a shortest =
path. This is something that&nbsp;<span style=3D"color:#1f497d" =
class=3D"">draft-rosen-idr-tunnel-encaps-00&nbsp;</span>will not help to =
signal because the tunnel-encap attribute indicates tunnel parameters =
used by the tail-end.</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">If a redirect tunnel represents a particular =
redirect/steering service (better delay, less packet loss, non-SRLG, =
more BW, etc=E2=80=A6) then it does become rather complex for BGP as =
signalling technology because a tunnel relationship is a unique between =
'a headend' and =E2=80=98a tailed' device. It seems better to leave =
tunnel-setup to dedicated tunnel-setup mechanisms like PCEP, SR, =
etc=E2=80=A6.</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">The draft redirect-to-PATH_ID is providing the means =
to signal a flow-based redirect/steering service, and have each =
recipient router identify using local recursion for the PATH_IDs the =
corresponding tunnels/redirect-info. This allows for tunnel setup =
complexity to be taken away from BGP, while at the same time BGP is =
doing what it is very good at doing: "It signals a policy=E2=80=9D in =
reliable fashion.</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">Kind Regards,</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">G/</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div =
style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in =
0in 0in" class=3D""><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><b class=3D""><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">From:&nbsp;</span></b><span class=3D""><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;</span></span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">Idr &lt;<a href=3D"mailto:idr-bounces@ietf.org" =
target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">idr-bounces@ietf.org</span></a>&gt; on behalf of Lizhenbin =
&lt;<a href=3D"mailto:lizhenbin@huawei.com" target=3D"_blank" =
class=3D""><span style=3D"color:purple" =
class=3D"">lizhenbin@huawei.com</span></a>&gt;<br class=3D""><b =
class=3D"">Date:<span class=3D"">&nbsp;</span></b>Monday 26 October 2015 =
at 16:51<br class=3D""><b class=3D"">To:<span =
class=3D"">&nbsp;</span></b>Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com" target=3D"_blank" class=3D""><span =
style=3D"color:purple" class=3D"">shares@ndzh.com</span></a>&gt;, "<a =
href=3D"mailto:idr@ietf.org" target=3D"_blank" class=3D""><span =
style=3D"color:purple" class=3D"">idr@ietf.org</span></a>" &lt;<a =
href=3D"mailto:idr@ietf.org" target=3D"_blank" class=3D""><span =
style=3D"color:purple" class=3D"">idr@ietf.org</span></a>&gt;<br =
class=3D""><b class=3D"">Cc:<span class=3D"">&nbsp;</span></b>"<a =
href=3D"mailto:jgs@bgp.nu" target=3D"_blank" class=3D""><span =
style=3D"color:purple" class=3D"">jgs@bgp.nu</span></a>" &lt;<a =
href=3D"mailto:jgs@bgp.nu" target=3D"_blank" class=3D""><span =
style=3D"color:purple" class=3D"">jgs@bgp.nu</span></a>&gt;<br =
class=3D""><b class=3D"">Subject:<span class=3D"">&nbsp;</span></b>[Idr] =
Regarding draft-vandevelde-idr-flowspec-path-redirect//</span><span =
style=3D"font-size:11.0pt;font-family:&quot;MS Gothic&quot;" =
class=3D"">=E7=AD=94=E5=A4=8D</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">: IDR interim (10/26/2015) 10:00am - 11:30am ET =
update<u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div><div class=3D""><div =
class=3D""><div class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Hi Gunter,</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Regarding your presentation, I have =
following comments:</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Do you mean =
draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel setup info? =
draft-hao-idr-flowspec-redirect-tunnel is to steer traffic to the tunnel =
instead of signal tunnel setup.<span class=3D"">&nbsp;</span></span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">I am not sure if the reuse of =
draft-rosen-idr-tunnel-encaps-00 in the draft make you confused? We just =
hope to &nbsp;just reuses the attributes of to specify the tunnel type =
to help steering<span class=3D"">&nbsp;</span></span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">the traffic to tunnel. If this is not a =
good way, maybe we can define new attributes.</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Best Regards,</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">Robin</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;;color:#1f497d" class=3D"">&nbsp;</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div =
style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in =
0in 0in" class=3D""><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><b class=3D""><span lang=3D"ZH-CN" =
style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">=E5=8F=91=E4=BB=B6=E4=BA=BA</span></b><b class=3D""><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D"">:</span></b><span=
 class=3D""><span style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">&nbsp;</span></span><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D"">Idr [<a =
href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank" class=3D""><span =
style=3D"color:purple" =
class=3D"">mailto:idr-bounces@ietf.org</span></a>]<span =
class=3D"">&nbsp;</span></span><b class=3D""><span lang=3D"ZH-CN" =
style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">=E4=BB=A3=E8=A1=A8</span></b><span class=3D""><b =
class=3D""><span style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">&nbsp;</span></b></span><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D"">Susan Hares<br =
class=3D""></span><b class=3D""><span lang=3D"ZH-CN" =
style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4</span></b><b =
class=3D""><span style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">:</span></b><span class=3D""><span =
style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">&nbsp;</span></span><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D"">2015</span><span =
lang=3D"ZH-CN" style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">=E5=B9=B4</span><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D"">10</span><span =
lang=3D"ZH-CN" style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">=E6=9C=88</span><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D"">25</span><span =
lang=3D"ZH-CN" style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">=E6=97=A5</span><span class=3D""><span =
style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">&nbsp;</span></span><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D"">22:07<br =
class=3D""></span><b class=3D""><span lang=3D"ZH-CN" =
style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">=E6=94=B6=E4=BB=B6=E4=BA=BA</span></b><b class=3D""><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D"">:</span></b><span=
 class=3D""><span style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">&nbsp;</span></span><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D""><a =
href=3D"mailto:idr@ietf.org" target=3D"_blank" class=3D""><span =
style=3D"color:purple" class=3D"">idr@ietf.org</span></a><br =
class=3D""></span><b class=3D""><span lang=3D"ZH-CN" =
style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">=E6=8A=84=E9=80=81</span></b><b class=3D""><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D"">:</span></b><span=
 class=3D""><span style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">&nbsp;</span></span><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D""><a =
href=3D"mailto:jgs@bgp.nu" target=3D"_blank" class=3D""><span =
style=3D"color:purple" class=3D"">jgs@bgp.nu</span></a><br =
class=3D""></span><b class=3D""><span lang=3D"ZH-CN" =
style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">=E4=B8=BB=E9=A2=98</span></b><b class=3D""><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D"">:</span></b><span=
 class=3D""><span style=3D"font-size:10.0pt;font-family:SimSun" =
class=3D"">&nbsp;</span></span><span =
style=3D"font-size:10.0pt;font-family:SimSun" class=3D"">[Idr] IDR =
interim (10/26/2015) 10:00am - 11:30am ET update</span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></div></div><div class=3D""><div =
class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">IDR WG members:<span class=3D"">&nbsp;</span><u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">Below is an updated agenda for the IDR interim on =
10/26/2015.<u class=3D""></u><u class=3D""></u></span></p></div></div><div=
 class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">Sue<span class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">------------<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">IDR interim October 26, 2015<span =
class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">10:00 - 11:30am<span class=3D"">&nbsp;</span><u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">1. Chair's slides [10:00-10:05]<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">1. draft-litkowski-idr-flowspec-interfaceset-01.txt<u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; speaker: Stephane Litowski&nbsp;<span =
class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;&nbsp;Time: 10:05-10:15<u class=3D""></u><u=
 class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;<span class=3D"">&nbsp;</span><a =
href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-inte=
rfaceset/" target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-i=
nterfaceset/</span></a><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;<span class=3D"">&nbsp;</span><u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">2. draft-hao-idr-flowspec-redirect-tunnel-00<u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; Speaker: Weiguo Hao<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; Time: 10:15 - 10:25<span =
class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tu=
nnel/" target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect=
-tunnel/</span></a><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;<span class=3D"">&nbsp;</span><u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">3. draft-vandevelde-idr-flowspec-path-redirect<u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; Speaker: Gunter Van De Velde<u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; Time: 10:25- 10:35<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;<span class=3D"">&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path=
-redirect/" target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-p=
ath-redirect/</span></a><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;<span class=3D"">&nbsp;</span><u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">4. Draft Name: draft-hao-idr-flowspec-nvo3-02<span =
class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;&nbsp;Speaker: Weiguo Hao<u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; Duration: 10:35-10:40<span =
class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/" =
target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</s=
pan></a><u class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;<span class=3D"">&nbsp;</span><u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">5. draft-liang-idr-bgp-flowspec-label-01.txt.<u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; Speaker:<span class=3D"">&nbsp;</span><u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;&nbsp;Duration: 10:40-10:45<span =
class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label=
/" target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-la=
bel/</span></a><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;<span class=3D"">&nbsp;</span><u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">6. draft-liang-idr-bgp-flowspec-time<u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; presenter: Jianjie You<u class=3D""></u><u=
 class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; time: 10:45-10:55<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;<span class=3D"">&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/=
" target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-ti=
me/</span></a><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">7. Draft Name: =
draft-li-idr-mpls-path-programming-02<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; Speaker: Zhenbin Li<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; Duration: 10:55-11:05<span =
class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming=
/" target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</span></a><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">7. Draft Name: draft-li-idr-flowspec-rpd-01<u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; Speaker: Shunwan Zhuang<u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp; Duration: 11:05 - 11:15<span =
class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/" =
target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/</spa=
n></a><u class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;<span class=3D"">&nbsp;</span><u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">8.&nbsp; Discussion of Flowspec drafts<u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;&nbsp;&nbsp; 11:15 - 11:30am<span =
class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;Meeting Web-ex information<span =
class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;Monday, October 26, 2015<span =
class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">10:00 am&nbsp; |&nbsp; Eastern Daylight Time (New =
York, GMT-04:00)&nbsp; |&nbsp; 2 hrs<span class=3D"">&nbsp;</span><u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">webex infor:<span class=3D"">&nbsp;</span><u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><a =
href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c=
3ff3143f" target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e5=
99c3ff3143f</span></a><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">Meeting number: =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 964 =
970<span class=3D"">&nbsp;</span><u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">Meeting =
password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; flow.in.nets<u =
class=3D""></u><u class=3D""></u></span></p></div></div><div =
class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">Join by phone<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><a href=3D"tel:1-877-668-4493" value=3D"+18776684493" =
target=3D"_blank" class=3D"">1-877-668-4493</a> Call-in toll free number =
(US/Canada)<u class=3D""></u><u class=3D""></u></span></p></div></div><div=
 class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><a href=3D"tel:1-650-479-3208" value=3D"+16504793208" =
target=3D"_blank" class=3D"">1-650-479-3208</a> Call-in toll number =
(US/Canada)<u class=3D""></u><u class=3D""></u></span></p></div></div><div=
 class=3D""><div class=3D""><p class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">Access code: 644 964 970<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div><div class=3D""><div class=3D""><p =
class=3D"MsoNormal"><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D"">&nbsp;<u class=3D""></u><u =
class=3D""></u></span></p></div></div></div></div></div><div class=3D""><p=
 class=3D"MsoNormal">_______________________________________________<br =
class=3D"">Idr mailing list<br class=3D""><a href=3D"mailto:Idr@ietf.org" =
target=3D"_blank" class=3D""><span style=3D"color:purple" =
class=3D"">Idr@ietf.org</span></a><br class=3D""><a =
href=3D"https://www.ietf.org/mailman/listinfo/idr" target=3D"_blank" =
class=3D""><span style=3D"color:purple" =
class=3D"">https://www.ietf.org/mailman/listinfo/idr</span></a><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u =
class=3D""></u></span></p></div></div></blockquote></div><div =
class=3D""><p class=3D"MsoNormal">&nbsp;<span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;" class=3D""><u class=3D""></u><u class=3D""></u></span></p></div><p=
 class=3D"MsoNormal">&lt;Hares-Discussion of Flowspec.pdf&gt;<u =
class=3D""></u><u class=3D""></u></p></div></blockquote></div><p =
class=3D"MsoNormal"><u class=3D""></u>&nbsp;<u =
class=3D""></u></p></div></div></div></div><br =
class=3D"">_______________________________________________<br class=3D"">
Idr mailing list<br class=3D"">
<a href=3D"mailto:Idr@ietf.org" class=3D"">Idr@ietf.org</a><br class=3D"">=

<a href=3D"https://www.ietf.org/mailman/listinfo/idr" rel=3D"noreferrer" =
target=3D"_blank" =
class=3D"">https://www.ietf.org/mailman/listinfo/idr</a><br class=3D"">
<br class=3D""></blockquote></div><br class=3D""></div>
</div></blockquote></div><br class=3D""></div></div></body></html>=

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Date: Wed, 28 Oct 2015 11:25:04 +0100
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From: Robert Raszuk <robert@raszuk.net>
To: Gunter Van De Velde <guntervandeveldecc@icloud.com>
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Cc: idr wg <idr@ietf.org>, "John G. Scudder" <jgs@bgp.nu>, Susan Hares <shares@ndzh.com>
Subject: Re: [Idr] =?utf-8?q?Regarding_draft-vandevelde-idr-flowspec-path-redi?= =?utf-8?b?cmVjdC8v562U5aSNOiBJRFIgaW50ZXJpbSAoMTAvMjYvMjAxNSkgMTA6MDBh?= =?utf-8?q?m_-_11=3A30am_ET_update?=
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Let's talk more about it ...

For example the C bit in yr draft which indicates data "copy" or "tee" is
applicable to already existing redirect action hence it may be good to lift
it higher and define as standalone action attribute.

Perhaps it would be great to document in email or draft what specific
applications are not possible with today's redirect based on the RT to a
new table and will be enabled with your new table mapping.

Cheers,
R.


On Wed, Oct 28, 2015 at 11:17 AM, Gunter Van De Velde <
guntervandeveldecc@icloud.com> wrote:

> Robert,
>
> Happy to change the =E2=80=9CPATH_ID=E2=80=9D name into some other name i=
f it brings down
> the misunderstandings=E2=80=A6
> Would you have a proposal?
>
> G/
>
>
> On 28 Oct 2015, at 11:07, Robert Raszuk <robert@raszuk.net> wrote:
>
> Hi Sue,
>
> > The issue is that =E2=80=9Cpath-id=E2=80=9D and your concepts of paths
> > is similar to many of the MPLS and segment routing path ids.
>
> Well as it turns out from our discussion yesterday Gunter clarified that
> the PATH_ID he used is just an reference to an indirection.
>
> Hence as such it really has not much in common with what most folks
> understand by PATH_ID.
>
> Perhaps if he just renames it to something else (less confusing) his draf=
t
> will go forward quite smooth :)
>
> Cheers,
> R.
>
>
>
>
> On Wed, Oct 28, 2015 at 10:50 AM, Susan Hares <shares@ndzh.com> wrote:
>
>> Gunter:
>>
>>
>>
>> My apologies =E2=80=93 since the slide I referenced was the chair=E2=80=
=99s discussion
>> generating slide =E2=80=93 I did not put <IDR chair hat on> - I should h=
ave.
>>
>>
>>
>> <chair hat on>
>>
>> My chair=E2=80=99s discussion was to inspire conversation on you percept=
ion of
>> the path-id versus the draft-li-mpls-path-programming.
>>
>>
>>
>> I was looking to solicit the following comment from you.
>>
>>
>>
>> =E2=80=9CYou clearly understand that draft-vandevelde-idr-flowspec-path-=
redirect
>> and draft-li-idr-mpls-path-programming are orthogonal to each other, not=
?=E2=80=9D
>>
>>
>>
>> My job as chair is to get people talking about their view of the other
>> proposal.
>>
>> <chair hat off>
>>
>>
>>
>> The issue is that =E2=80=9Cpath-id=E2=80=9D and your concepts of paths i=
s similar to many
>> of the MPLS and segment routing path ids.
>>  Draft-li-idr-mpls-path-programming seeks to generalize segment routing
>> (see Robin=E2=80=99s slides) using a variety of BGP and MPLS.
>>
>>
>>
>> As Lucy=E2=80=99s slides pointed out =E2=80=93 we have an IP and non-IP =
traffic.  My
>> understanding is that your path-id is for just IP traffic.  You comment
>> below would suggest both.
>>
>>
>>
>> Best wishes,
>>
>> Sue
>>
>>
>>
>> *From:* Idr [mailto:idr-bounces@ietf.org] *On Behalf Of *Gunter Van De
>> Velde
>> *Sent:* Wednesday, October 28, 2015 5:38 AM
>>
>> *To:* Susan Hares
>> *Cc:* idr wg; jgs@bgp.nu
>> *Subject:* Re: [Idr] Regarding
>> draft-vandevelde-idr-flowspec-path-redirect//
>> =E7=AD=94=E5=A4=8D: IDR interim (10/26/2015) 10:00am - 11:30am ET update
>>
>>
>>
>> Hi Sue,
>>
>>
>>
>> [Please indicate when you are speaking as IDR chair or when you are
>> speaking as contributor/affiliation=E2=80=A6 i am confused]
>>
>>
>>
>> I did a search for forwarding ID in the referenced document and i do not
>> see it?
>>
>>
>>
>> You clearly understand that draft-vandevelde-idr-flowspec-path-redirect
>> and draft-li-idr-mpls-path-programming are orthogonal to each other, not=
?
>>
>> =E2=80=9Cdraft-li-idr-mpls-path-programming " specifies how BGP uses att=
ributes
>> to signal a tunnel and how a tunnel is constructed through the network,
>> while on the other end of the
>>
>> spectrum draft-vandevelde-idr-flowspec-path-redirect specifies flowspec
>> based traffic steering onto a redirect path and signals no tunnel
>> attributes at all.
>>
>>
>>
>> In draft-vandevelde-idr-flowspec-path-redirect the local PATH_ID table
>> can be constructed by many means and is outside the scope of the documen=
t:
>>
>>
>>
>> * draft-li-idr-mpls-path-programming
>>
>> * manual config
>>
>> * netconf/yang
>>
>> * traditional routing
>>
>> * voodoo
>>
>> * etc...
>>
>>
>>
>> The end result: redirect-to-path and draft-li-idr-mpls-path-programming
>> are orthogonal to each other.
>>
>>
>>
>> Kind Regards,
>>
>> G/
>>
>>
>>
>>
>>
>> On 28 Oct 2015, at 00:30, Susan Hares <shares@ndzh.com> wrote:
>>
>>
>>
>> Gunter:
>>
>>
>>
>> Robin=E2=80=99s proposal is
>> http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/
>>
>>
>>
>> See my attached comparison from the interim.  You can also download
>> Robin=E2=80=99s slides from the interim.
>>
>>
>>
>> Sue
>>
>>
>>
>> *From:* Idr [mailto:idr-bounces@ietf.org <idr-bounces@ietf.org>] *On
>> Behalf Of *Gunter Van De Velde
>> *Sent:* Tuesday, October 27, 2015 4:12 PM
>> *To:* Susan Hares
>> *Cc:* idr wg; jgs@bgp.nu
>> *Subject:* Re: [Idr] Regarding
>> draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR int=
erim
>> (10/26/2015) 10:00am - 11:30am ET update
>>
>>
>>
>> Hi Sue,
>>
>>
>>
>> Would you know where to find Forwarding ID described in draft-hao-idr-fl=
owspec-redirect-tunnel to
>> make assessment?
>>
>> There is no mentioning of this concept at all in the document? Alternati=
vely,
>> what i found is signalling of tunnel end-point (IPv4/IPv6) and
>>
>> some tunnel setup information (tunnel encap attribute and a new MPP TE
>> tunnel attribute).
>>
>>
>>
>> Brgds,
>>
>> G/
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On 27 Oct 2015, at 19:28, Susan Hares <shares@ndzh.com> wrote:
>>
>>
>>
>> Gunter:
>>
>>
>>
>> Can you let me know the difference between the Path ID in your proposal
>> and Robin=E2=80=99s Forwarding ID that is a generalized segment ID?
>>
>>
>>
>> Sue Hares
>>
>>
>>
>> *From:* VAN DE VELDE, Gunter (Gunter) [
>> mailto:gunter.van_de_velde@alcatel-lucent.com
>> <gunter.van_de_velde@alcatel-lucent.com>]
>> *Sent:* Monday, October 26, 2015 12:26 PM
>> *To:* Lizhenbin; Susan Hares; idr@ietf.org
>> *Cc:* jgs@bgp.nu
>> *Subject:* Re: [Idr] Regarding
>> draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR int=
erim
>> (10/26/2015) 10:00am - 11:30am ET update
>>
>>
>>
>> Hi Robin,
>>
>>
>>
>> Thanks for your note.
>>
>>
>>
>> A tunnel is not always going over shortest path. Some tunnels are TE
>> tunnels and are deliberately not going over a shortest path. This is
>> something that draft-rosen-idr-tunnel-encaps-00 will not help to signal
>> because the tunnel-encap attribute indicates tunnel parameters used by t=
he
>> tail-end.
>>
>>
>>
>> If a redirect tunnel represents a particular redirect/steering service
>> (better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then i=
t does
>> become rather complex for BGP as signalling technology because a tunnel
>> relationship is a unique between 'a headend' and =E2=80=98a tailed' devi=
ce. It
>> seems better to leave tunnel-setup to dedicated tunnel-setup mechanisms
>> like PCEP, SR, etc=E2=80=A6.
>>
>>
>>
>> The draft redirect-to-PATH_ID is providing the means to signal a
>> flow-based redirect/steering service, and have each recipient router
>> identify using local recursion for the PATH_IDs the corresponding
>> tunnels/redirect-info. This allows for tunnel setup complexity to be tak=
en
>> away from BGP, while at the same time BGP is doing what it is very good =
at
>> doing: "It signals a policy=E2=80=9D in reliable fashion.
>>
>>
>>
>> Kind Regards,
>>
>> G/
>>
>>
>>
>>
>>
>>
>>
>> *From: * Idr <idr-bounces@ietf.org> on behalf of Lizhenbin <
>> lizhenbin@huawei.com>
>> *Date: *Monday 26 October 2015 at 16:51
>> *To: *Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
>> *Cc: *"jgs@bgp.nu" <jgs@bgp.nu>
>> *Subject: *[Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//
>> =E7=AD=94=E5=A4=8D: IDR interim (10/26/2015) 10:00am - 11:30am ET update
>>
>>
>>
>> Hi Gunter,
>>
>> Regarding your presentation, I have following comments:
>>
>> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel
>> setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic t=
o
>> the tunnel instead of signal tunnel setup.
>>
>> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the
>> draft make you confused? We just hope to  just reuses the attributes of =
to
>> specify the tunnel type to help steering
>>
>> the traffic to tunnel. If this is not a good way, maybe we can define ne=
w
>> attributes.
>>
>>
>>
>>
>>
>> Best Regards,
>>
>> Robin
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> *=E5=8F=91=E4=BB=B6=E4=BA=BA**:* Idr [mailto:idr-bounces@ietf.org <idr-b=
ounces@ietf.org>] *=E4=BB=A3=E8=A1=A8* Susan
>> Hares
>> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4**:* 2015=E5=B9=B410=E6=9C=8825=E6=
=97=A5 22:07
>> *=E6=94=B6=E4=BB=B6=E4=BA=BA**:* idr@ietf.org
>> *=E6=8A=84=E9=80=81**:* jgs@bgp.nu
>> *=E4=B8=BB=E9=A2=98**:* [Idr] IDR interim (10/26/2015) 10:00am - 11:30am=
 ET update
>>
>>
>>
>> IDR WG members:
>>
>>
>>
>> Below is an updated agenda for the IDR interim on 10/26/2015.
>>
>>
>>
>> Sue
>>
>>
>>
>> ------------
>>
>> IDR interim October 26, 2015
>>
>> 10:00 - 11:30am
>>
>>
>>
>> 1. Chair's slides [10:00-10:05]
>>
>>
>>
>> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>>
>>    speaker: Stephane Litowski
>>
>>    Time: 10:05-10:15
>>
>>
>> https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaces=
et/
>>
>>
>>
>> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>>
>>    Speaker: Weiguo Hao
>>
>>    Time: 10:15 - 10:25
>>
>>
>> http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/
>>
>>
>>
>>
>>
>> 3. draft-vandevelde-idr-flowspec-path-redirect
>>
>>    Speaker: Gunter Van De Velde
>>
>>    Time: 10:25- 10:35
>>
>>
>> http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redir=
ect/
>>
>>
>>
>>
>>
>> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02
>>
>>    Speaker: Weiguo Hao
>>
>>    Duration: 10:35-10:40
>>
>>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/
>>
>>
>>
>>
>>
>> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>>
>>    Speaker:
>>
>>    Duration: 10:40-10:45
>>
>>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/
>>
>>
>>
>> 6. draft-liang-idr-bgp-flowspec-time
>>
>>    presenter: Jianjie You
>>
>>    time: 10:45-10:55
>>
>>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/
>>
>>
>>
>> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>>
>>    Speaker: Zhenbin Li
>>
>>    Duration: 10:55-11:05
>>
>>    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/
>>
>>
>>
>> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>>
>>    Speaker: Shunwan Zhuang
>>
>>    Duration: 11:05 - 11:15
>>
>>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/
>>
>>
>>
>> 8.  Discussion of Flowspec drafts
>>
>>     11:15 - 11:30am
>>
>>
>>
>>  Meeting Web-ex information
>>
>>  Monday, October 26, 2015
>>
>> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs
>>
>>
>>
>> webex infor:
>>
>> https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff314=
3f
>>
>>
>>
>> Meeting number:            644 964 970
>>
>> Meeting password:         flow.in.nets
>>
>>
>>
>>
>>
>> Join by phone
>>
>> 1-877-668-4493 Call-in toll free number (US/Canada)
>>
>> 1-650-479-3208 Call-in toll number (US/Canada)
>>
>> Access code: 644 964 970
>>
>>
>>
>>
>>
>> _______________________________________________
>> Idr mailing list
>> Idr@ietf.org
>> https://www.ietf.org/mailman/listinfo/idr
>>
>>
>>
>> <Hares-Discussion of Flowspec.pdf>
>>
>>
>>
>> _______________________________________________
>> Idr mailing list
>> Idr@ietf.org
>> https://www.ietf.org/mailman/listinfo/idr
>>
>>
>
>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small">Let&#39;s talk more about it ...=C2=A0<=
/div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans=
-serif;font-size:small"><br></div><div class=3D"gmail_default" style=3D"fon=
t-family:arial,helvetica,sans-serif;font-size:small">For example the C bit =
in yr draft which indicates data &quot;copy&quot; or &quot;tee&quot; is app=
licable to already existing redirect action hence it may be good to lift it=
 higher and define as standalone action attribute.</div><div class=3D"gmail=
_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">=
<br></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica=
,sans-serif;font-size:small">Perhaps it would be great to document in email=
 or draft what specific applications are not possible with today&#39;s redi=
rect based on the RT to a new table and will be enabled with your new table=
 mapping.=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:aria=
l,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_defau=
lt" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Cheers=
,<br>R.</div><div class=3D"gmail_default" style=3D"font-family:arial,helvet=
ica,sans-serif;font-size:small"><br></div></div><div class=3D"gmail_extra">=
<br><div class=3D"gmail_quote">On Wed, Oct 28, 2015 at 11:17 AM, Gunter Van=
 De Velde <span dir=3D"ltr">&lt;<a href=3D"mailto:guntervandeveldecc@icloud=
.com" target=3D"_blank">guntervandeveldecc@icloud.com</a>&gt;</span> wrote:=
<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-lef=
t:1px #ccc solid;padding-left:1ex"><div style=3D"word-wrap:break-word">Robe=
rt,<div><br></div><div>Happy to change the =E2=80=9CPATH_ID=E2=80=9D name i=
nto some other name if it brings down the misunderstandings=E2=80=A6</div><=
div>Would you have a proposal?=C2=A0</div><span class=3D"HOEnZb"><font colo=
r=3D"#888888"><div><br></div></font></span><div><span class=3D"HOEnZb"><fon=
t color=3D"#888888"><div>G/</div></font></span><div><div class=3D"h5"><div>=
<br></div><div><br><div><blockquote type=3D"cite"><div>On 28 Oct 2015, at 1=
1:07, Robert Raszuk &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_bla=
nk">robert@raszuk.net</a>&gt; wrote:</div><br><div><div dir=3D"ltr"><div cl=
ass=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-=
size:small">Hi Sue,</div><div class=3D"gmail_default" style=3D"font-family:=
arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_d=
efault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><s=
pan style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font-size:=
14.6667px">&gt; The issue is that =E2=80=9Cpath-id=E2=80=9D and your concep=
ts of paths=C2=A0</span></div><div class=3D"gmail_default" style=3D"font-fa=
mily:arial,helvetica,sans-serif;font-size:small"><span style=3D"color:rgb(3=
1,73,125);font-family:Calibri,sans-serif;font-size:14.6667px">&gt; is simil=
ar to many of the MPLS and segment routing path ids.</span><br></div><div c=
lass=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font=
-size:small"><span style=3D"color:rgb(31,73,125);font-family:Calibri,sans-s=
erif;font-size:14.6667px"><br></span></div><div class=3D"gmail_default" sty=
le=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span style=
=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font-size:14.6667px=
">Well as it turns out from our discussion yesterday Gunter clarified that =
the PATH_ID he used is just an reference to an indirection.=C2=A0</span></d=
iv><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-s=
erif;font-size:small"><span style=3D"color:rgb(31,73,125);font-family:Calib=
ri,sans-serif;font-size:14.6667px"><br></span></div><div class=3D"gmail_def=
ault"><font color=3D"#1f497d" face=3D"Calibri, sans-serif"><span style=3D"f=
ont-size:14.6667px">Hence as such it really has not much in common with wha=
t most folks understand by PATH_ID.=C2=A0</span></font></div><div class=3D"=
gmail_default"><font color=3D"#1f497d" face=3D"Calibri, sans-serif"><span s=
tyle=3D"font-size:14.6667px"><br></span></font></div><div class=3D"gmail_de=
fault"><font color=3D"#1f497d" face=3D"Calibri, sans-serif"><span style=3D"=
font-size:14.6667px">Perhaps if he just renames it to something else (less =
confusing) his draft will go forward quite smooth :)=C2=A0</span></font></d=
iv><div class=3D"gmail_default"><font color=3D"#1f497d" face=3D"Calibri, sa=
ns-serif"><span style=3D"font-size:14.6667px"><br></span></font></div><div =
class=3D"gmail_default"><font color=3D"#1f497d" face=3D"Calibri, sans-serif=
"><span style=3D"font-size:14.6667px">Cheers,<br>R.</span></font></div><div=
 class=3D"gmail_default"><font color=3D"#1f497d" face=3D"Calibri, sans-seri=
f"><span style=3D"font-size:14.6667px"><br></span></font></div><div class=
=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-siz=
e:small"><span style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif=
;font-size:14.6667px"><br></span></div><div class=3D"gmail_default" style=
=3D"font-family:arial,helvetica,sans-serif;font-size:small"><span style=3D"=
color:rgb(31,73,125);font-family:Calibri,sans-serif;font-size:14.6667px"><b=
r></span></div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Wed, Oct 28, 2015 at 10:50 AM, Susan Hares <span dir=3D"ltr">&lt;<a =
href=3D"mailto:shares@ndzh.com" target=3D"_blank">shares@ndzh.com</a>&gt;</=
span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8e=
x;border-left:1px #ccc solid;padding-left:1ex"><div lang=3D"EN-US" link=3D"=
blue" vlink=3D"purple"><div><p class=3D"MsoNormal"><span style=3D"font-size=
:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497=
d">Gunter: <u></u><u></u></span></p><p class=3D"MsoNormal"><span style=3D"f=
ont-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;colo=
r:#1f497d"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span styl=
e=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot=
;;color:#1f497d">My apologies =E2=80=93 since the slide I referenced was th=
e chair=E2=80=99s discussion generating slide =E2=80=93 I did not put &lt;I=
DR chair hat on&gt; - I should have. <u></u><u></u></span></p><p class=3D"M=
soNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&=
quot;sans-serif&quot;;color:#1f497d">=C2=A0<u></u><u></u></span></p><p clas=
s=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&q=
uot;,&quot;sans-serif&quot;;color:#1f497d">&lt;chair hat on&gt; <u></u><u><=
/u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-f=
amily:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">My chair=E2=
=80=99s discussion was to inspire conversation on you perception of the pat=
h-id versus the draft-li-mpls-path-programming. <u></u><u></u></span></p><p=
 class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></span>=
</p><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quo=
t;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">I was looking to soli=
cit the following comment from you. =C2=A0<u></u><u></u></span></p><p class=
=3D"MsoNormal"><u></u>=C2=A0<u></u></p><p class=3D"MsoNormal">=E2=80=9CYou =
clearly understand that draft-vandevelde-idr-flowspec-path-redirect and=C2=
=A0draft-li-idr-mpls-path-programming are orthogonal to each other, not?=E2=
=80=9D <u></u><u></u></p><p class=3D"MsoNormal"><span style=3D"font-size:11=
.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=
<u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-s=
ize:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f=
497d">My job as chair is to get people talking about their view of the othe=
r proposal. <u></u><u></u></span></p><p class=3D"MsoNormal"><span style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;col=
or:#1f497d">&lt;chair hat off&gt; <u></u><u></u></span></p><p class=3D"MsoN=
ormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quo=
t;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></span></p><p class=
=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;;color:#1f497d">The issue is that =E2=80=9Cpath-i=
d=E2=80=9D and your concepts of paths is similar to many of the MPLS and se=
gment routing path ids.=C2=A0 =C2=A0Draft-li-idr-mpls-path-programming seek=
s to generalize segment routing (see Robin=E2=80=99s slides) using a variet=
y of BGP and MPLS. =C2=A0=C2=A0=C2=A0<u></u><u></u></span></p><p class=3D"M=
soNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&=
quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></span></p><p clas=
s=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&q=
uot;,&quot;sans-serif&quot;;color:#1f497d">As Lucy=E2=80=99s slides pointed=
 out =E2=80=93 we have an IP and non-IP traffic.=C2=A0 My understanding is =
that your path-id is for just IP traffic.=C2=A0 You comment below would sug=
gest both. <u></u><u></u></span></p><p class=3D"MsoNormal"><span style=3D"f=
ont-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;colo=
r:#1f497d"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span styl=
e=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot=
;;color:#1f497d">Best wishes, <u></u><u></u></span></p><p class=3D"MsoNorma=
l"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1f497d">Sue <u></u><u></u></span></p><p class=3D"MsoN=
ormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quo=
t;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></span></p><div><div =
style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0=
in"><p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:&=
quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style=3D"fo=
nt-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> Idr =
[mailto:<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank">idr-bounc=
es@ietf.org</a>] <b>On Behalf Of </b>Gunter Van De Velde<br><b>Sent:</b> We=
dnesday, October 28, 2015 5:38 AM</span></p><div><div><br><b>To:</b> Susan =
Hares<br><b>Cc:</b> idr wg; <a href=3D"mailto:jgs@bgp.nu" target=3D"_blank"=
>jgs@bgp.nu</a><br><b>Subject:</b> Re: [Idr] Regarding draft-vandevelde-idr=
-flowspec-path-redirect//</div></div><span style=3D"font-size:10.0pt;font-f=
amily:&quot;MS UI Gothic&quot;,&quot;sans-serif&quot;">=E7=AD=94=E5=A4=8D</=
span><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;s=
ans-serif&quot;">: IDR interim (10/26/2015) 10:00am - 11:30am ET update<u><=
/u><u></u></span><div><br></div></div></div><div><div><p class=3D"MsoNormal=
"><u></u>=C2=A0<u></u></p><div><p class=3D"MsoNormal">Hi Sue,<u></u><u></u>=
</p></div><div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p></div><div><p=
 class=3D"MsoNormal">[Please indicate when you are speaking as IDR chair or=
 when you are speaking as contributor/affiliation=E2=80=A6 i am confused]<u=
></u><u></u></p></div><div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><=
/div><div><p class=3D"MsoNormal">I did a search for forwarding ID in the re=
ferenced document and i do not see it?<u></u><u></u></p></div><div><p class=
=3D"MsoNormal"><u></u>=C2=A0<u></u></p></div><div><p class=3D"MsoNormal">Yo=
u clearly understand that draft-vandevelde-idr-flowspec-path-redirect and=
=C2=A0draft-li-idr-mpls-path-programming are orthogonal to each other, not?=
<u></u><u></u></p></div><div><p class=3D"MsoNormal">=E2=80=9Cdraft-li-idr-m=
pls-path-programming &quot; specifies how BGP uses attributes to signal a t=
unnel and how a tunnel is constructed through the network, while on the oth=
er end of the=C2=A0<u></u><u></u></p></div><div><p class=3D"MsoNormal">spec=
trum draft-vandevelde-idr-flowspec-path-redirect specifies flowspec based t=
raffic steering onto a redirect path and signals no tunnel attributes at al=
l.<u></u><u></u></p></div><div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u><=
/p></div><div><p class=3D"MsoNormal">In draft-vandevelde-idr-flowspec-path-=
redirect the local PATH_ID table can be constructed by many means and is ou=
tside the scope of the document:<u></u><u></u></p></div><div><p class=3D"Ms=
oNormal"><u></u>=C2=A0<u></u></p></div><div><p class=3D"MsoNormal">*=C2=A0d=
raft-li-idr-mpls-path-programming<u></u><u></u></p></div><div><p class=3D"M=
soNormal">* manual config<u></u><u></u></p></div><div><p class=3D"MsoNormal=
">* netconf/yang<u></u><u></u></p></div><div><p class=3D"MsoNormal">* tradi=
tional routing<u></u><u></u></p></div><div><p class=3D"MsoNormal">* voodoo=
=C2=A0<u></u><u></u></p></div><div><p class=3D"MsoNormal">* etc...<u></u><u=
></u></p></div><div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p></div><d=
iv><p class=3D"MsoNormal">The end result: redirect-to-path and draft-li-idr=
-mpls-path-programming are orthogonal to each other.<u></u><u></u></p></div=
><div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p></div><div><p class=3D=
"MsoNormal">Kind Regards,<u></u><u></u></p></div><div><p class=3D"MsoNormal=
">G/<u></u><u></u></p></div><div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u=
></p></div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><div><blockquote =
style=3D"margin-top:5.0pt;margin-bottom:5.0pt"><div><p class=3D"MsoNormal">=
On 28 Oct 2015, at 00:30, Susan Hares &lt;<a href=3D"mailto:shares@ndzh.com=
" target=3D"_blank">shares@ndzh.com</a>&gt; wrote:<u></u><u></u></p></div><=
p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><div><div><p class=3D"MsoNorm=
al"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;s=
ans-serif&quot;;color:#1f497d">Gunter:<span>=C2=A0</span></span><span style=
=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
"><u></u><u></u></span></p></div><div><p class=3D"MsoNormal"><span style=3D=
"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;co=
lor:#1f497d">=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&quot=
;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div><div>=
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">Robin=E2=80=99s proposal =
is<span>=C2=A0</span><a href=3D"http://datatracker.ietf.org/doc/draft-li-id=
r-mpls-path-programming/" target=3D"_blank"><span style=3D"color:purple">ht=
tp://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/</span></a=
></span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&qu=
ot;sans-serif&quot;"><u></u><u></u></span></p></div><div><p class=3D"MsoNor=
mal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;=
sans-serif&quot;;color:#1f497d">=C2=A0</span><span style=3D"font-size:11.0p=
t;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></s=
pan></p></div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;f=
ont-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">See my=
 attached comparison from the interim.=C2=A0 You can also download Robin=E2=
=80=99s slides from the interim.=C2=A0 =C2=A0</span><span style=3D"font-siz=
e:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u>=
</u></span></p></div><div><p class=3D"MsoNormal"><span style=3D"font-size:1=
1.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d"=
>=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quo=
t;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div><div><p class=3D"=
MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,=
&quot;sans-serif&quot;;color:#1f497d">Sue<span>=C2=A0</span></span><span st=
yle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&qu=
ot;"><u></u><u></u></span></p></div><div><p class=3D"MsoNormal"><span style=
=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
;color:#1f497d">=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div><d=
iv><div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0=
in 0in 0in"><div><p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;=
font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><spa=
n><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans=
-serif&quot;">=C2=A0</span></span><span style=3D"font-size:10.0pt;font-fami=
ly:&quot;Tahoma&quot;,&quot;sans-serif&quot;">Idr [<a href=3D"mailto:idr-bo=
unces@ietf.org" target=3D"_blank"><span style=3D"color:purple">mailto:idr-b=
ounces@ietf.org</span></a>]<span>=C2=A0</span><b>On Behalf Of<span>=C2=A0</=
span></b>Gunter Van De Velde<br><b>Sent:</b><span>=C2=A0</span>Tuesday, Oct=
ober 27, 2015 4:12 PM<br><b>To:</b><span>=C2=A0</span>Susan Hares<br><b>Cc:=
</b><span>=C2=A0</span>idr wg;<span>=C2=A0</span><a href=3D"mailto:jgs@bgp.=
nu" target=3D"_blank"><span style=3D"color:purple">jgs@bgp.nu</span></a><br=
><b>Subject:</b><span>=C2=A0</span>Re: [Idr] Regarding draft-vandevelde-idr=
-flowspec-path-redirect//</span><span style=3D"font-size:10.0pt;font-family=
:&quot;MS UI Gothic&quot;,&quot;sans-serif&quot;">=E7=AD=94=E5=A4=8D</span>=
<span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-s=
erif&quot;">: IDR interim (10/26/2015) 10:00am - 11:30am ET update</span><s=
pan style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-se=
rif&quot;"><u></u><u></u></span></p></div></div></div><div><p class=3D"MsoN=
ormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quo=
t;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;">Hi Sue,<u></u><u></u></span></p></div></div><di=
v><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&=
quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p><=
/div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt=
;font-family:&quot;Times&quot;,&quot;serif&quot;">Would you know where to f=
ind Forwarding ID described in=C2=A0<span style=3D"background:white">draft-=
hao-idr-flowspec-redirect-tunnel=C2=A0to make=C2=A0assessment?=C2=A0</span>=
</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quo=
t;sans-serif&quot;"><u></u><u></u></span></p></div></div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Times&quot=
;,&quot;serif&quot;;background:white">There=C2=A0is no mentioning of this c=
oncept at all in the document?=C2=A0</span><span style=3D"font-size:10.5pt;=
font-family:&quot;Times&quot;,&quot;serif&quot;">Alternatively, what i foun=
d is signalling of tunnel end-point (IPv4/IPv6) and=C2=A0</span><span style=
=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
"><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><sp=
an style=3D"font-size:10.5pt;font-family:&quot;Times&quot;,&quot;serif&quot=
;">some tunnel setup information (tunnel encap attribute and a new MPP TE t=
unnel attribute).</span><span style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div><=
div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p=
></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0=
pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Brgds,<u></u><u>=
</u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">G/=
<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span=
 style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p class=3D"Ms=
oNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&q=
uot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div>=
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div></=
div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-f=
amily:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></spa=
n></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size=
:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></=
u><u></u></span></p></div></div><div><p class=3D"MsoNormal"><span style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=
=C2=A0<u></u><u></u></span></p></div><div><blockquote style=3D"margin-top:5=
.0pt;margin-bottom:5.0pt"><div><div><p class=3D"MsoNormal"><span style=3D"f=
ont-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">On =
27 Oct 2015, at 19:28, Susan Hares &lt;<a href=3D"mailto:shares@ndzh.com" t=
arget=3D"_blank"><span style=3D"color:purple">shares@ndzh.com</span></a>&gt=
; wrote:<u></u><u></u></span></p></div></div><div><p class=3D"MsoNormal"><s=
pan style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-se=
rif&quot;">=C2=A0<u></u><u></u></span></p></div><div><div><div><div><p clas=
s=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&q=
uot;,&quot;sans-serif&quot;;color:#1f497d">Gunter:<span>=C2=A0</span></span=
><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans=
-serif&quot;"><u></u><u></u></span></p></div></div><div><div><p class=3D"Ms=
oNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&q=
uot;sans-serif&quot;;color:#1f497d">=C2=A0</span><span style=3D"font-size:1=
1.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u=
></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:=
#1f497d">Can you let me know the difference between the Path ID in your pro=
posal and Robin=E2=80=99s Forwarding ID that is a generalized segment ID?<s=
pan>=C2=A0</span></span><span style=3D"font-size:11.0pt;font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div><=
div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0</span><sp=
an style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-ser=
if&quot;"><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNor=
mal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;=
sans-serif&quot;;color:#1f497d">Sue Hares</span><span style=3D"font-size:11=
.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u>=
</span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font=
-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#=
1f497d">=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div><div=
><div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in=
 0in 0in"><div><div><p class=3D"MsoNormal"><b><span style=3D"font-size:10.0=
pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><=
span><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;s=
ans-serif&quot;">=C2=A0</span></span><span style=3D"font-size:10.0pt;font-f=
amily:&quot;Tahoma&quot;,&quot;sans-serif&quot;">VAN DE VELDE, Gunter (Gunt=
er) [<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" target=3D"_b=
lank"><span style=3D"color:purple">mailto:gunter.van_de_velde@alcatel-lucen=
t.com</span></a>]<span>=C2=A0</span><br><b>Sent:</b><span>=C2=A0</span>Mond=
ay, October 26, 2015 12:26 PM<br><b>To:</b><span>=C2=A0</span>Lizhenbin; Su=
san Hares;<span>=C2=A0</span><a href=3D"mailto:idr@ietf.org" target=3D"_bla=
nk"><span style=3D"color:purple">idr@ietf.org</span></a><br><b>Cc:</b><span=
>=C2=A0</span><a href=3D"mailto:jgs@bgp.nu" target=3D"_blank"><span style=
=3D"color:purple">jgs@bgp.nu</span></a><br><b>Subject:</b><span>=C2=A0</spa=
n>Re: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//</span><=
span style=3D"font-size:10.0pt;font-family:&quot;MS UI Gothic&quot;,&quot;s=
ans-serif&quot;">=E7=AD=94=E5=A4=8D</span><span style=3D"font-size:10.0pt;f=
ont-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">: IDR interim (10/26/=
2015) 10:00am - 11:30am ET update</span><span style=3D"font-size:11.0pt;fon=
t-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span><=
/p></div></div></div></div><div><div><p class=3D"MsoNormal"><span style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=
=C2=A0<u></u><u></u></span></p></div></div><div><div><div><div><p class=3D"=
MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,=
&quot;sans-serif&quot;">Hi Robin,</span><span style=3D"font-size:11.0pt;fon=
t-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span><=
/p></div></div></div><div><div><div><p class=3D"MsoNormal"><span style=3D"f=
ont-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=
=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&=
quot;sans-serif&quot;"><u></u><u></u></span></p></div></div></div><div><div=
><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;">Thanks for your note.</span><span=
 style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;"><u></u><u></u></span></p></div></div></div><div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;">=C2=A0</span><span style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span>=
</p></div></div></div><div><div><div><p class=3D"MsoNormal"><span style=3D"=
font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">A =
tunnel is not always going over shortest path. Some tunnels are TE tunnels =
and are deliberately not going over a shortest path. This is something that=
=C2=A0<span style=3D"color:#1f497d">draft-rosen-idr-tunnel-encaps-00=C2=A0<=
/span>will not help to signal because the tunnel-encap attribute indicates =
tunnel parameters used by the tail-end.</span><span style=3D"font-size:11.0=
pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></=
span></p></div></div></div><div><div><div><p class=3D"MsoNormal"><span styl=
e=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot=
;">=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&q=
uot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div></div><di=
v><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-fam=
ily:&quot;Calibri&quot;,&quot;sans-serif&quot;">If a redirect tunnel repres=
ents a particular redirect/steering service (better delay, less packet loss=
, non-SRLG, more BW, etc=E2=80=A6) then it does become rather complex for B=
GP as signalling technology because a tunnel relationship is a unique betwe=
en &#39;a headend&#39; and =E2=80=98a tailed&#39; device. It seems better t=
o leave tunnel-setup to dedicated tunnel-setup mechanisms like PCEP, SR, et=
c=E2=80=A6.</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri=
&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div></div><=
div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-f=
amily:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0</span><span style=
=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
"><u></u><u></u></span></p></div></div></div><div><div><div><p class=3D"Mso=
Normal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&qu=
ot;sans-serif&quot;">The draft redirect-to-PATH_ID is providing the means t=
o signal a flow-based redirect/steering service, and have each recipient ro=
uter identify using local recursion for the PATH_IDs the corresponding tunn=
els/redirect-info. This allows for tunnel setup complexity to be taken away=
 from BGP, while at the same time BGP is doing what it is very good at doin=
g: &quot;It signals a policy=E2=80=9D in reliable fashion.</span><span styl=
e=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot=
;"><u></u><u></u></span></p></div></div></div></div><div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;">=C2=A0</span><span style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span>=
</p></div></div></div><div><div><div><p class=3D"MsoNormal"><span style=3D"=
font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Ki=
nd Regards,</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri=
&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div></div><=
div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-f=
amily:&quot;Calibri&quot;,&quot;sans-serif&quot;">G/</span><span style=3D"f=
ont-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u>=
</u><u></u></span></p></div></div></div><div><div><div><p class=3D"MsoNorma=
l"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;">=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></=
div></div><div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10=
.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0</span><=
span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-s=
erif&quot;"><u></u><u></u></span></p></div></div></div><div><div><div><p cl=
ass=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri=
&quot;,&quot;sans-serif&quot;">=C2=A0</span><span style=3D"font-size:11.0pt=
;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></sp=
an></p></div></div></div><div style=3D"border:none;border-top:solid #b5c4df=
 1.0pt;padding:3.0pt 0in 0in 0in"><div><div><p class=3D"MsoNormal"><b><span=
 style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;">From:=C2=A0</span></b><span><span style=3D"font-size:11.0pt;font-fa=
mily:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0</span></span><span =
style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&=
quot;">Idr &lt;<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank"><s=
pan style=3D"color:purple">idr-bounces@ietf.org</span></a>&gt; on behalf of=
 Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com" target=3D"_blank"><s=
pan style=3D"color:purple">lizhenbin@huawei.com</span></a>&gt;<br><b>Date:<=
span>=C2=A0</span></b>Monday 26 October 2015 at 16:51<br><b>To:<span>=C2=A0=
</span></b>Susan Hares &lt;<a href=3D"mailto:shares@ndzh.com" target=3D"_bl=
ank"><span style=3D"color:purple">shares@ndzh.com</span></a>&gt;, &quot;<a =
href=3D"mailto:idr@ietf.org" target=3D"_blank"><span style=3D"color:purple"=
>idr@ietf.org</span></a>&quot; &lt;<a href=3D"mailto:idr@ietf.org" target=
=3D"_blank"><span style=3D"color:purple">idr@ietf.org</span></a>&gt;<br><b>=
Cc:<span>=C2=A0</span></b>&quot;<a href=3D"mailto:jgs@bgp.nu" target=3D"_bl=
ank"><span style=3D"color:purple">jgs@bgp.nu</span></a>&quot; &lt;<a href=
=3D"mailto:jgs@bgp.nu" target=3D"_blank"><span style=3D"color:purple">jgs@b=
gp.nu</span></a>&gt;<br><b>Subject:<span>=C2=A0</span></b>[Idr] Regarding d=
raft-vandevelde-idr-flowspec-path-redirect//</span><span style=3D"font-size=
:11.0pt;font-family:&quot;MS Gothic&quot;">=E7=AD=94=E5=A4=8D</span><span s=
tyle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&q=
uot;">: IDR interim (10/26/2015) 10:00am - 11:30am ET update<u></u><u></u><=
/span></p></div></div></div><div><div><div><p class=3D"MsoNormal"><span sty=
le=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quo=
t;">=C2=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&=
quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div></div></div><d=
iv><div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">Hi Gunt=
er,</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&=
quot;sans-serif&quot;"><u></u><u></u></span></p></div></div><div><div><p cl=
ass=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri=
&quot;,&quot;sans-serif&quot;;color:#1f497d">Regarding your presentation, I=
 have following comments:</span><span style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div=
></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;fon=
t-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">Do you m=
ean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel setup info? =
draft-hao-idr-flowspec-redirect-tunnel is to steer traffic to the tunnel in=
stead of signal tunnel setup.<span>=C2=A0</span></span><span style=3D"font-=
size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u>=
<u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=
=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
;color:#1f497d">I am not sure if the reuse of draft-rosen-idr-tunnel-encaps=
-00 in the draft make you confused? We just hope to =C2=A0just reuses the a=
ttributes of to specify the tunnel type to help steering<span>=C2=A0</span>=
</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quo=
t;sans-serif&quot;"><u></u><u></u></span></p></div></div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;;color:#1f497d">the traffic to tunnel. If this is=
 not a good way, maybe we can define new attributes.</span><span style=3D"f=
ont-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u>=
</u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span st=
yle=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&qu=
ot;;color:#1f497d">=C2=A0</span><span style=3D"font-size:11.0pt;font-family=
:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div=
></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;fon=
t-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0</=
span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;=
sans-serif&quot;"><u></u><u></u></span></p></div></div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;;color:#1f497d">Best Regards,</span><span style=
=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
"><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><sp=
an style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-ser=
if&quot;;color:#1f497d">Robin</span><span style=3D"font-size:11.0pt;font-fa=
mily:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p><=
/div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt=
;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=
=A0</span><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&=
quot;sans-serif&quot;"><u></u><u></u></span></p></div></div><div><div><p cl=
ass=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri=
&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0</span><span style=3D"fo=
nt-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u><=
/u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span sty=
le=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quo=
t;;color:#1f497d">=C2=A0</span><span style=3D"font-size:11.0pt;font-family:=
&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u></u></span></p></div>=
</div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font=
-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0</s=
pan><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;s=
ans-serif&quot;"><u></u><u></u></span></p></div></div><div><div><p class=3D=
"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;=
,&quot;sans-serif&quot;;color:#1f497d">=C2=A0</span><span style=3D"font-siz=
e:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><u>=
</u></span></p></div></div><div><div style=3D"border:none;border-top:solid =
#b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><div><div><p class=3D"MsoNormal"><=
b><span lang=3D"ZH-CN" style=3D"font-size:10.0pt;font-family:SimSun">=E5=8F=
=91=E4=BB=B6=E4=BA=BA</span></b><b><span style=3D"font-size:10.0pt;font-fam=
ily:SimSun">:</span></b><span><span style=3D"font-size:10.0pt;font-family:S=
imSun">=C2=A0</span></span><span style=3D"font-size:10.0pt;font-family:SimS=
un">Idr [<a href=3D"mailto:idr-bounces@ietf.org" target=3D"_blank"><span st=
yle=3D"color:purple">mailto:idr-bounces@ietf.org</span></a>]<span>=C2=A0</s=
pan></span><b><span lang=3D"ZH-CN" style=3D"font-size:10.0pt;font-family:Si=
mSun">=E4=BB=A3=E8=A1=A8</span></b><span><b><span style=3D"font-size:10.0pt=
;font-family:SimSun">=C2=A0</span></b></span><span style=3D"font-size:10.0p=
t;font-family:SimSun">Susan Hares<br></span><b><span lang=3D"ZH-CN" style=
=3D"font-size:10.0pt;font-family:SimSun">=E5=8F=91=E9=80=81=E6=97=B6=E9=97=
=B4</span></b><b><span style=3D"font-size:10.0pt;font-family:SimSun">:</spa=
n></b><span><span style=3D"font-size:10.0pt;font-family:SimSun">=C2=A0</spa=
n></span><span style=3D"font-size:10.0pt;font-family:SimSun">2015</span><sp=
an lang=3D"ZH-CN" style=3D"font-size:10.0pt;font-family:SimSun">=E5=B9=B4</=
span><span style=3D"font-size:10.0pt;font-family:SimSun">10</span><span lan=
g=3D"ZH-CN" style=3D"font-size:10.0pt;font-family:SimSun">=E6=9C=88</span><=
span style=3D"font-size:10.0pt;font-family:SimSun">25</span><span lang=3D"Z=
H-CN" style=3D"font-size:10.0pt;font-family:SimSun">=E6=97=A5</span><span><=
span style=3D"font-size:10.0pt;font-family:SimSun">=C2=A0</span></span><spa=
n style=3D"font-size:10.0pt;font-family:SimSun">22:07<br></span><b><span la=
ng=3D"ZH-CN" style=3D"font-size:10.0pt;font-family:SimSun">=E6=94=B6=E4=BB=
=B6=E4=BA=BA</span></b><b><span style=3D"font-size:10.0pt;font-family:SimSu=
n">:</span></b><span><span style=3D"font-size:10.0pt;font-family:SimSun">=
=C2=A0</span></span><span style=3D"font-size:10.0pt;font-family:SimSun"><a =
href=3D"mailto:idr@ietf.org" target=3D"_blank"><span style=3D"color:purple"=
>idr@ietf.org</span></a><br></span><b><span lang=3D"ZH-CN" style=3D"font-si=
ze:10.0pt;font-family:SimSun">=E6=8A=84=E9=80=81</span></b><b><span style=
=3D"font-size:10.0pt;font-family:SimSun">:</span></b><span><span style=3D"f=
ont-size:10.0pt;font-family:SimSun">=C2=A0</span></span><span style=3D"font=
-size:10.0pt;font-family:SimSun"><a href=3D"mailto:jgs@bgp.nu" target=3D"_b=
lank"><span style=3D"color:purple">jgs@bgp.nu</span></a><br></span><b><span=
 lang=3D"ZH-CN" style=3D"font-size:10.0pt;font-family:SimSun">=E4=B8=BB=E9=
=A2=98</span></b><b><span style=3D"font-size:10.0pt;font-family:SimSun">:</=
span></b><span><span style=3D"font-size:10.0pt;font-family:SimSun">=C2=A0</=
span></span><span style=3D"font-size:10.0pt;font-family:SimSun">[Idr] IDR i=
nterim (10/26/2015) 10:00am - 11:30am ET update</span><span style=3D"font-s=
ize:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><u></u><=
u></u></span></p></div></div></div></div><div><div><p class=3D"MsoNormal"><=
span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-s=
erif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;">IDR WG members:<span>=C2=A0</span><u></u><u></u=
></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=
=A0<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><s=
pan style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-se=
rif&quot;">Below is an updated agenda for the IDR interim on 10/26/2015.<u>=
</u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span st=
yle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&qu=
ot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNo=
rmal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot=
;sans-serif&quot;">Sue<span>=C2=A0</span><u></u><u></u></span></p></div></d=
iv><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-fa=
mily:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span=
></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:=
11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">------------=
<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span=
 style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif=
&quot;">IDR interim October 26, 2015<span>=C2=A0</span><u></u><u></u></span=
></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:=
11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">10:00 - 11:3=
0am<span>=C2=A0</span><u></u><u></u></span></p></div></div><div><div><p cla=
ss=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&=
quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><d=
iv><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:=
&quot;Calibri&quot;,&quot;sans-serif&quot;">1. Chair&#39;s slides [10:00-10=
:05]<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><=
span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-s=
erif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;">1. draft-litkowski-idr-flowspec-interfaceset-01=
.txt<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><=
span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-s=
erif&quot;">=C2=A0=C2=A0 speaker: Stephane Litowski=C2=A0<span>=C2=A0</span=
><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><spa=
n style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-seri=
f&quot;">=C2=A0=C2=A0=C2=A0Time: 10:05-10:15<u></u><u></u></span></p></div>=
</div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font=
-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0<span>=C2=
=A0</span><a href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-f=
lowspec-interfaceset/" target=3D"_blank"><span style=3D"color:purple">https=
://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset/</spa=
n></a><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"=
><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans=
-serif&quot;">=C2=A0=C2=A0<span>=C2=A0</span><u></u><u></u></span></p></div=
></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;fon=
t-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">2. draft-hao-idr-flows=
pec-redirect-tunnel-00<u></u><u></u></span></p></div></div><div><div><p cla=
ss=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&=
quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 Speaker: Weiguo Hao<u></u><u></u=
></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=
=A0=C2=A0 Time: 10:15 - 10:25<span>=C2=A0</span><u></u><u></u></span></p></=
div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;=
font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=C2=A0<=
a href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-t=
unnel/" target=3D"_blank"><span style=3D"color:purple">http://datatracker.i=
etf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/</span></a><u></u><u></u=
></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"fon=
t-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=
=A0=C2=A0<span>=C2=A0</span><u></u><u></u></span></p></div></div><div><div>=
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=C2=A0<u></u><u></u></span>=
</p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:1=
1.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">3. draft-vand=
evelde-idr-flowspec-path-redirect<u></u><u></u></span></p></div></div><div>=
<div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&qu=
ot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 Speaker: Gunter Van D=
e Velde<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal=
"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;san=
s-serif&quot;">=C2=A0=C2=A0 Time: 10:25- 10:35<u></u><u></u></span></p></di=
v></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0<span>=C2=
=A0</span><a href=3D"http://datatracker.ietf.org/doc/draft-vandevelde-idr-f=
lowspec-path-redirect/" target=3D"_blank"><span style=3D"color:purple">http=
://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirect/</s=
pan></a><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNorma=
l"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;">=C2=A0=C2=A0<span>=C2=A0</span><u></u><u></u></span></p></d=
iv></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;f=
ont-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=C2=A0<u=
></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span s=
tyle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&q=
uot;">4. Draft Name: draft-hao-idr-flowspec-nvo3-02<span>=C2=A0</span><u></=
u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span styl=
e=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot=
;">=C2=A0=C2=A0=C2=A0Speaker: Weiguo Hao<u></u><u></u></span></p></div></di=
v><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-fam=
ily:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 Duration: 10:3=
5-10:40<span>=C2=A0</span><u></u><u></u></span></p></div></div><div><div><p=
 class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=C2=A0<a href=3D"http://datat=
racker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/" target=3D"_blank"><span s=
tyle=3D"color:purple">http://datatracker.ietf.org/doc/draft-hao-idr-flowspe=
c-nvo3/</span></a><u></u><u></u></span></p></div></div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;">=C2=A0=C2=A0<span>=C2=A0</span><u></u><u></u></=
span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-s=
ize:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u=
></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span s=
tyle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&q=
uot;">5. draft-liang-idr-bgp-flowspec-label-01.txt.<u></u><u></u></span></p=
></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0=
pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 Spe=
aker:<span>=C2=A0</span><u></u><u></u></span></p></div></div><div><div><p c=
lass=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibr=
i&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=C2=A0Duration: 10:40-10:45<spa=
n>=C2=A0</span><u></u><u></u></span></p></div></div><div><div><p class=3D"M=
soNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&=
quot;sans-serif&quot;">=C2=A0=C2=A0<a href=3D"http://datatracker.ietf.org/d=
oc/draft-liang-idr-bgp-flowspec-label/" target=3D"_blank"><span style=3D"co=
lor:purple">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-la=
bel/</span></a><u></u><u></u></span></p></div></div><div><div><p class=3D"M=
soNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&=
quot;sans-serif&quot;">=C2=A0=C2=A0<span>=C2=A0</span><u></u><u></u></span>=
</p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:1=
1.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">6. draft-lian=
g-idr-bgp-flowspec-time<u></u><u></u></span></p></div></div><div><div><p cl=
ass=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri=
&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 presenter: Jianjie You<u></u><u=
></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D=
"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=
=C2=A0=C2=A0 time: 10:45-10:55<u></u><u></u></span></p></div></div><div><di=
v><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;=
Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0<span>=C2=A0</span><a hre=
f=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/" ta=
rget=3D"_blank"><span style=3D"color:purple">http://datatracker.ietf.org/do=
c/draft-liang-idr-bgp-flowspec-time/</span></a><u></u><u></u></span></p></d=
iv></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;f=
ont-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u>=
</span></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font=
-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">7. Dra=
ft Name: draft-li-idr-mpls-path-programming-02<u></u><u></u></span></p></di=
v></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 Speaker:=
 Zhenbin Li<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNo=
rmal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot=
;sans-serif&quot;">=C2=A0=C2=A0 Duration: 10:55-11:05<span>=C2=A0</span><u>=
</u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span st=
yle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&qu=
ot;">=C2=A0=C2=A0=C2=A0<a href=3D"http://datatracker.ietf.org/doc/draft-li-=
idr-mpls-path-programming/" target=3D"_blank"><span style=3D"color:purple">=
http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/</span><=
/a><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><s=
pan style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-se=
rif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p class=3D=
"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;=
,&quot;sans-serif&quot;">7. Draft Name: draft-li-idr-flowspec-rpd-01<u></u>=
<u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=
=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
">=C2=A0=C2=A0 Speaker: Shunwan Zhuang<u></u><u></u></span></p></div></div>=
<div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-famil=
y:&quot;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0 Duration: 11:05 =
- 11:15<span>=C2=A0</span><u></u><u></u></span></p></div></div><div><div><p=
 class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=C2=A0<a href=3D"http://datat=
racker.ietf.org/doc/draft-li-idr-flowspec-rpd/" target=3D"_blank"><span sty=
le=3D"color:purple">http://datatracker.ietf.org/doc/draft-li-idr-flowspec-r=
pd/</span></a><u></u><u></u></span></p></div></div><div><div><p class=3D"Ms=
oNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&q=
uot;sans-serif&quot;">=C2=A0=C2=A0<span>=C2=A0</span><u></u><u></u></span><=
/p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11=
.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">8.=C2=A0 Discu=
ssion of Flowspec drafts<u></u><u></u></span></p></div></div><div><div><p c=
lass=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibr=
i&quot;,&quot;sans-serif&quot;">=C2=A0=C2=A0=C2=A0 11:15 - 11:30am<span>=C2=
=A0</span><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNor=
mal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;=
sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p c=
lass=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibr=
i&quot;,&quot;sans-serif&quot;">=C2=A0Meeting Web-ex information<span>=C2=
=A0</span><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNor=
mal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;=
sans-serif&quot;">=C2=A0Monday, October 26, 2015<span>=C2=A0</span><u></u><=
u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=
=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
">10:00 am=C2=A0 |=C2=A0 Eastern Daylight Time (New York, GMT-04:00)=C2=A0 =
|=C2=A0 2 hrs<span>=C2=A0</span><u></u><u></u></span></p></div></div><div><=
div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quo=
t;Calibri&quot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></di=
v></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">webex infor:<span>=C2=
=A0</span><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNor=
mal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;=
sans-serif&quot;"><a href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dmae6c=
f241d3adf214033e599c3ff3143f" target=3D"_blank"><span style=3D"color:purple=
">https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f</span></a><u></u><u></u></span></p></div></div><div><div><p class=3D"MsoN=
ormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quo=
t;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p=
 class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Cali=
bri&quot;,&quot;sans-serif&quot;">Meeting number: =C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 644 964 970<span>=C2=A0</span><u></u><=
u></u></span></p></div></div><div><div><p class=3D"MsoNormal"><span style=
=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;=
">Meeting password:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 flow.in=
.nets<u></u><u></u></span></p></div></div><div><div><p class=3D"MsoNormal">=
<span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-=
serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&qu=
ot;,&quot;sans-serif&quot;">=C2=A0<u></u><u></u></span></p></div></div><div=
><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;">Join by phone<u></u><u></u></span=
></p></div></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:=
11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><a href=3D"t=
el:1-877-668-4493" value=3D"+18776684493" target=3D"_blank">1-877-668-4493<=
/a> Call-in toll free number (US/Canada)<u></u><u></u></span></p></div></di=
v><div><div><p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-fam=
ily:&quot;Calibri&quot;,&quot;sans-serif&quot;"><a href=3D"tel:1-650-479-32=
08" value=3D"+16504793208" target=3D"_blank">1-650-479-3208</a> Call-in tol=
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From: Gunter Van De Velde <guntervandeveldecc@icloud.com>
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Date: Wed, 28 Oct 2015 11:30:58 +0100
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References: <009b01d10f2e$5cc28820$16479860$@ndzh.com> <5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5C638@nkgeml506-mbx.china.huawei.com> <4D6BC339-51BE-4F90-8858-9B81859858F0@alcatel-lucent.com> <042101d110e5$439e2d50$cada87f0$@ndzh.com> <7BFD3160-0576-4AC7-919B-B73FA61BBB51@icloud.com> <2691CE0099834E4A9C5044EEC662BB9D57200E91@dfweml701-chm>
To: Lucy yong <lucy.yong@huawei.com>
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Cc: idr wg <idr@ietf.org>, "jgs@bgp.nu" <jgs@bgp.nu>, Susan Hares <shares@ndzh.com>
Subject: Re: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//??: IDR interim (10/26/2015) 10:00am - 11:30am ET update
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Hi Lucy,

Inside the the abstract of draft-hao-idr-flowspec-redirect-tunnel-00 we =
read:=20

   The redirected tunnel information and target IP address are encoded
   in BGP Path Attribute [TUNNELENCAPS] [MPP] that is carried in the
   BGP flow-spec UPDATE.

This indicates in Hao proposal that Flowspec is to signal information =
regarding tunnel constructs, not?

G/



> On 28 Oct 2015, at 01:38, Lucy yong <lucy.yong@huawei.com> wrote:
>=20
> Hi Gunter,
> =20
> The hao=E2=80=99s draft specifies the flowspec to be redirected to a =
tunnel. It classifies tunnel into two types: IP tunnel and non-IP =
tunnel. For an IP tunnel, it proposes use of the tunnel-encapsulation =
attribute specified in the tunnel-encaps draft; for a non-IP tunnel, it =
proposes use of the attributes specified in =
draft-li-idr-mpls-path-programming, to convey the tunnel info. The =
hao=E2=80=99s draft does not intend to use BGP to signal the tunnel info =
for the tunnel set-up; it specifies how BGP advertises the flowspec w/ =
associated tunnel so the flow packets can be redirected to the tunnel.
> =20
> Thanks,
> Lucy=20
> =20
> From: Idr [mailto:idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>] =
On Behalf Of Gunter Van De Velde
> Sent: Tuesday, October 27, 2015 3:12 PM
> To: Susan Hares
> Cc: idr wg; jgs@bgp.nu <mailto:jgs@bgp.nu>
> Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//??: IDR interim =
(10/26/2015) 10:00am - 11:30am ET update
> =20
> Hi Sue,
> =20
> Would you know where to find Forwarding ID described in =
draft-hao-idr-flowspec-redirect-tunnel to make assessment?=20
> There is no mentioning of this concept at all in the document? =
Alternatively, what i found is signalling of tunnel end-point =
(IPv4/IPv6) and=20
> some tunnel setup information (tunnel encap attribute and a new MPP TE =
tunnel attribute).
> =20
> Brgds,
> G/
> =20
> =20
> =20
> =20
> =20
> =20
> On 27 Oct 2015, at 19:28, Susan Hares <shares@ndzh.com =
<mailto:shares@ndzh.com>> wrote:
> =20
> Gunter:=20
> =20
> Can you let me know the difference between the Path ID in your =
proposal and Robin=E2=80=99s Forwarding ID that is a generalized segment =
ID?
> =20
> Sue Hares
> =20
> From: VAN DE VELDE, Gunter (Gunter) =
[mailto:gunter.van_de_velde@alcatel-lucent.com =
<mailto:gunter.van_de_velde@alcatel-lucent.com>]=20
> Sent: Monday, October 26, 2015 12:26 PM
> To: Lizhenbin; Susan Hares; idr@ietf.org <mailto:idr@ietf.org>
> Cc: jgs@bgp.nu <mailto:jgs@bgp.nu>
> Subject: Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
> =20
> Hi Robin,
> =20
> Thanks for your note.
> =20
> A tunnel is not always going over shortest path. Some tunnels are TE =
tunnels and are deliberately not going over a shortest path. This is =
something that draft-rosen-idr-tunnel-encaps-00 will not help to signal =
because the tunnel-encap attribute indicates tunnel parameters used by =
the tail-end.
> =20
> If a redirect tunnel represents a particular redirect/steering service =
(better delay, less packet loss, non-SRLG, more BW, etc=E2=80=A6) then =
it does become rather complex for BGP as signalling technology because a =
tunnel relationship is a unique between 'a headend' and =E2=80=98a =
tailed' device. It seems better to leave tunnel-setup to dedicated =
tunnel-setup mechanisms like PCEP, SR, etc=E2=80=A6.
> =20
> The draft redirect-to-PATH_ID is providing the means to signal a =
flow-based redirect/steering service, and have each recipient router =
identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable fashion.
> =20
> Kind Regards,
> G/
> =20
> =20
> =20
> From:  Idr <idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>> on =
behalf of Lizhenbin <lizhenbin@huawei.com <mailto:lizhenbin@huawei.com>>
> Date: Monday 26 October 2015 at 16:51
> To: Susan Hares <shares@ndzh.com <mailto:shares@ndzh.com>>, =
"idr@ietf.org <mailto:idr@ietf.org>" <idr@ietf.org =
<mailto:idr@ietf.org>>
> Cc: "jgs@bgp.nu <mailto:jgs@bgp.nu>" <jgs@bgp.nu <mailto:jgs@bgp.nu>>
> Subject: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//=E7=AD=94=E5=A4=8D: IDR =
interim (10/26/2015) 10:00am - 11:30am ET update
> =20
> Hi Gunter,
> Regarding your presentation, I have following comments:
> Do you mean draft-hao-idr-flowspec-redirect-tunnel is to signal tunnel =
setup info? draft-hao-idr-flowspec-redirect-tunnel is to steer traffic =
to the tunnel instead of signal tunnel setup.
> I am not sure if the reuse of draft-rosen-idr-tunnel-encaps-00 in the =
draft make you confused? We just hope to  just reuses the attributes of =
to specify the tunnel type to help steering
> the traffic to tunnel. If this is not a good way, maybe we can define =
new attributes.
> =20
> =20
> Best Regards,
> Robin
> =20
> =20
> =20
> =20
> =20
> =E5=8F=91=E4=BB=B6=E4=BA=BA: Idr [mailto:idr-bounces@ietf.org =
<mailto:idr-bounces@ietf.org>] =E4=BB=A3=E8=A1=A8 Susan Hares
> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B410=E6=9C=8825=E6=97=A5=
 22:07
> =E6=94=B6=E4=BB=B6=E4=BA=BA: idr@ietf.org <mailto:idr@ietf.org>
> =E6=8A=84=E9=80=81: jgs@bgp.nu <mailto:jgs@bgp.nu>
> =E4=B8=BB=E9=A2=98: [Idr] IDR interim (10/26/2015) 10:00am - 11:30am =
ET update
> =20
> IDR WG members:=20
> =20
> Below is an updated agenda for the IDR interim on 10/26/2015.
> =20
> Sue=20
> =20
> ------------
> IDR interim October 26, 2015=20
> 10:00 - 11:30am=20
> =20
> 1. Chair's slides [10:00-10:05]
> =20
> 1. draft-litkowski-idr-flowspec-interfaceset-01.txt
>    speaker: Stephane Litowski =20
>    Time: 10:05-10:15
>    =
https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfaceset=
/ =
<https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-interfacese=
t/>
>   =20
> 2. draft-hao-idr-flowspec-redirect-tunnel-00
>    Speaker: Weiguo Hao
>    Time: 10:15 - 10:25=20
>    =
http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tunnel/>
>   =20
>   =20
> 3. draft-vandevelde-idr-flowspec-path-redirect
>    Speaker: Gunter Van De Velde
>    Time: 10:25- 10:35
>    =
http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redirec=
t/ =
<http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path-redire=
ct/>
>   =20
>   =20
> 4. Draft Name: draft-hao-idr-flowspec-nvo3-02=20
>    Speaker: Weiguo Hao
>    Duration: 10:35-10:40=20
>    http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/ =
<http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/>
>   =20
> =20
> 5. draft-liang-idr-bgp-flowspec-label-01.txt.
>    Speaker:=20
>    Duration: 10:40-10:45=20
>   http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label/>
>   =20
> 6. draft-liang-idr-bgp-flowspec-time
>    presenter: Jianjie You
>    time: 10:45-10:55
>    http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/ =
<http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/>
> =20
> 7. Draft Name: draft-li-idr-mpls-path-programming-02
>    Speaker: Zhenbin Li
>    Duration: 10:55-11:05=20
>    http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/ =
<http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming/>
> =20
> 7. Draft Name: draft-li-idr-flowspec-rpd-01
>    Speaker: Shunwan Zhuang
>    Duration: 11:05 - 11:15=20
>    http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/ =
<http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/>
>   =20
> 8.  Discussion of Flowspec drafts
>     11:15 - 11:30am=20
> =20
>  Meeting Web-ex information=20
>  Monday, October 26, 2015=20
> 10:00 am  |  Eastern Daylight Time (New York, GMT-04:00)  |  2 hrs
> =20
> webex infor:=20
> =
https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143f=
 =
<https://ietf.webex.com/ietf/j.php?MTID=3Dmae6cf241d3adf214033e599c3ff3143=
f>
> =20
> Meeting number:            644 964 970=20
> Meeting password:         flow.in.nets
> =20
> =20
> Join by phone
> 1-877-668-4493 Call-in toll free number (US/Canada)
> 1-650-479-3208 Call-in toll number (US/Canada)
> Access code: 644 964 970
> =20
> =20
> _______________________________________________
> Idr mailing list
> Idr@ietf.org <mailto:Idr@ietf.org>
> https://www.ietf.org/mailman/listinfo/idr =
<https://www.ietf.org/mailman/listinfo/idr>

--Apple-Mail=_96902BA8-96BE-4BD4-85F3-143AD3ECF5C5
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	charset=utf-8

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">Hi Lucy,<div class=3D""><br class=3D""></div><div =
class=3D"">Inside the the abstract of =
draft-hao-idr-flowspec-redirect-tunnel-00 we read:&nbsp;</div><div =
class=3D""><br class=3D""></div><div class=3D""><pre style=3D"font-size: =
13px; margin-top: 0px; margin-bottom: 0px;" class=3D"">   The redirected =
tunnel information and target IP address are encoded
   in BGP Path Attribute [TUNNELENCAPS] [MPP] that is carried in the
   BGP flow-spec UPDATE.</pre><div class=3D""><br =
class=3D""></div></div><div class=3D"">This indicates in Hao proposal =
that Flowspec is to signal information regarding tunnel constructs, =
not?</div><div class=3D""><br class=3D""></div><div =
class=3D"">G/</div><div class=3D""><br class=3D""></div><div =
class=3D""><br class=3D""></div><div class=3D""><br =
class=3D""><div><blockquote type=3D"cite" class=3D""><div class=3D"">On =
28 Oct 2015, at 01:38, Lucy yong &lt;<a =
href=3D"mailto:lucy.yong@huawei.com" =
class=3D"">lucy.yong@huawei.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div =
class=3D"WordSection1" style=3D"page: WordSection1; font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"color: rgb(31, 73, =
125);" class=3D"">Hi Gunter,<o:p class=3D""></o:p></span></div><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"color: rgb(31, 73, =
125);" class=3D""><o:p class=3D"">&nbsp;</o:p></span></div><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"color: rgb(31, 73, =
125);" class=3D"">The hao=E2=80=99s draft specifies the flowspec to be =
redirected to a tunnel. It classifies tunnel into two types: IP tunnel =
and non-IP tunnel. For an IP tunnel, it proposes use of the =
tunnel-encapsulation attribute specified in the tunnel-encaps draft; for =
a non-IP tunnel, it proposes use of the attributes specified in =
draft-li-idr-mpls-path-programming, to convey the tunnel info. The =
hao=E2=80=99s draft does not intend to use BGP to signal the tunnel info =
for the tunnel set-up; it specifies how BGP advertises the flowspec w/ =
associated tunnel so the flow packets can be redirected to the =
tunnel.<o:p class=3D""></o:p></span></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" class=3D"">Thanks,<o:p=
 class=3D""></o:p></span></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"color: rgb(31, 73, 125);" class=3D"">Lucy<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"color: rgb(31, 73, 125);" class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div class=3D""><div =
style=3D"border-style: solid none none; border-top-color: rgb(181, 196, =
223); border-top-width: 1pt; padding: 3pt 0in 0in;" class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><b class=3D""><span style=3D"font-size: =
10pt; font-family: Tahoma, sans-serif;" class=3D"">From:</span></b><span =
style=3D"font-size: 10pt; font-family: Tahoma, sans-serif;" =
class=3D""><span class=3D"Apple-converted-space">&nbsp;</span>Idr [<a =
href=3D"mailto:idr-bounces@ietf.org" style=3D"color: purple; =
text-decoration: underline;" =
class=3D"">mailto:idr-bounces@ietf.org</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span><b class=3D"">On Behalf =
Of<span class=3D"Apple-converted-space">&nbsp;</span></b>Gunter Van De =
Velde<br class=3D""><b class=3D"">Sent:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Tuesday, October 27, 2015 =
3:12 PM<br class=3D""><b class=3D"">To:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Susan Hares<br class=3D""><b =
class=3D"">Cc:</b><span class=3D"Apple-converted-space">&nbsp;</span>idr =
wg;<span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:jgs@bgp.nu" style=3D"color: purple; text-decoration: =
underline;" class=3D"">jgs@bgp.nu</a><br class=3D""><b =
class=3D"">Subject:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//??: IDR interim =
(10/26/2015) 10:00am - 11:30am ET update<o:p =
class=3D""></o:p></span></div></div></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">Hi Sue,<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt; =
font-family: Times, serif;" class=3D"">Would you know where to find =
Forwarding ID described in&nbsp;<span style=3D"background-color: white; =
background-position: initial initial; background-repeat: initial =
initial;" class=3D"">draft-hao-idr-flowspec-redirect-tunnel&nbsp;to =
make&nbsp;assessment?&nbsp;</span></span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; font-family: Times, serif; =
background-color: white; background-position: initial initial; =
background-repeat: initial initial;" class=3D"">There&nbsp;is no =
mentioning of this concept at all in the document?&nbsp;</span><span =
style=3D"font-size: 10.5pt; font-family: Times, serif;" =
class=3D"">Alternatively, what i found is signalling of tunnel end-point =
(IPv4/IPv6) and&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; font-family: Times, serif;" class=3D"">some tunnel setup =
information (tunnel encap attribute and a new MPP TE tunnel =
attribute).</span><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">Brgds,<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">G/<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div><div class=3D""><blockquote =
style=3D"margin-top: 5pt; margin-bottom: 5pt;" class=3D""><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">On 27 Oct 2015, at 19:28, =
Susan Hares &lt;<a href=3D"mailto:shares@ndzh.com" style=3D"color: =
purple; text-decoration: underline;" class=3D"">shares@ndzh.com</a>&gt; =
wrote:<o:p class=3D""></o:p></div></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><o:p class=3D"">&nbsp;</o:p></div><div class=3D""><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"color: rgb(31, 73, 125);" class=3D"">Gunter:<span =
class=3D"Apple-converted-space">&nbsp;</span></span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"color: =
rgb(31, 73, 125);" class=3D"">Can you let me know the difference between =
the Path ID in your proposal and Robin=E2=80=99s Forwarding ID that is a =
generalized segment ID?</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"color: =
rgb(31, 73, 125);" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"color: rgb(31, 73, 125);" class=3D"">Sue =
Hares</span><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"color: rgb(31, 73, =
125);" class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"border-style: solid none none; =
border-top-color: rgb(181, 196, 223); border-top-width: 1pt; padding: =
3pt 0in 0in;" class=3D""><div class=3D""><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><b class=3D""><span style=3D"font-size: 10pt; font-family: =
Tahoma, sans-serif;" class=3D"">From:</span></b><span style=3D"font-size: =
10pt; font-family: Tahoma, sans-serif;" class=3D""><span =
class=3D"Apple-converted-space">&nbsp;</span>VAN DE VELDE, Gunter =
(Gunter) [<a href=3D"mailto:gunter.van_de_velde@alcatel-lucent.com" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">mailto:gunter.van_de_velde@alcatel-lucent.com</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span><br class=3D""><b =
class=3D"">Sent:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Monday, October 26, 2015 =
12:26 PM<br class=3D""><b class=3D"">To:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Lizhenbin; Susan =
Hares;<span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">idr@ietf.org</a><br class=3D""><b =
class=3D"">Cc:</b><span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:jgs@bgp.nu" style=3D"color: purple; text-decoration: =
underline;" class=3D"">jgs@bgp.nu</a><br class=3D""><b =
class=3D"">Subject:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Re: [Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//</span><span lang=3D"ZH-CN" =
style=3D"font-size: 10pt; font-family: 'MS UI Gothic', sans-serif;" =
class=3D"">=E7=AD=94=E5=A4=8D</span><span style=3D"font-size: 10pt; =
font-family: Tahoma, sans-serif;" class=3D"">: IDR interim (10/26/2015) =
10:00am - 11:30am ET update</span><o:p =
class=3D""></o:p></div></div></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div class=3D""><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt;" class=3D"">Hi Robin,</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">Thanks for your note.</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">A tunnel is not always going =
over shortest path. Some tunnels are TE tunnels and are deliberately not =
going over a shortest path. This is something that&nbsp;<span =
style=3D"color: rgb(31, 73, 125);" =
class=3D"">draft-rosen-idr-tunnel-encaps-00&nbsp;</span>will not help to =
signal because the tunnel-encap attribute indicates tunnel parameters =
used by the tail-end.</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">If a redirect tunnel represents a particular =
redirect/steering service (better delay, less packet loss, non-SRLG, =
more BW, etc=E2=80=A6) then it does become rather complex for BGP as =
signalling technology because a tunnel relationship is a unique between =
'a headend' and =E2=80=98a tailed' device. It seems better to leave =
tunnel-setup to dedicated tunnel-setup mechanisms like PCEP, SR, =
etc=E2=80=A6.</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">The draft redirect-to-PATH_ID is providing the means to =
signal a flow-based redirect/steering service, and have each recipient =
router identify using local recursion for the PATH_IDs the corresponding =
tunnels/redirect-info. This allows for tunnel setup complexity to be =
taken away from BGP, while at the same time BGP is doing what it is very =
good at doing: "It signals a policy=E2=80=9D in reliable =
fashion.</span><o:p class=3D""></o:p></div></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">Kind Regards,</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">G/</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
style=3D"font-size: 10.5pt;" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div></div><div style=3D"border-style: solid =
none none; border-top-color: rgb(181, 196, 223); border-top-width: 1pt; =
padding: 3pt 0in 0in;" class=3D""><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><b class=3D"">From:&nbsp;</b><span =
class=3D"Apple-converted-space">&nbsp;</span>Idr &lt;<a =
href=3D"mailto:idr-bounces@ietf.org" style=3D"color: purple; =
text-decoration: underline;" class=3D"">idr-bounces@ietf.org</a>&gt; on =
behalf of Lizhenbin &lt;<a href=3D"mailto:lizhenbin@huawei.com" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">lizhenbin@huawei.com</a>&gt;<br class=3D""><b =
class=3D"">Date:<span =
class=3D"Apple-converted-space">&nbsp;</span></b>Monday 26 October 2015 =
at 16:51<br class=3D""><b class=3D"">To:<span =
class=3D"Apple-converted-space">&nbsp;</span></b>Susan Hares &lt;<a =
href=3D"mailto:shares@ndzh.com" style=3D"color: purple; text-decoration: =
underline;" class=3D"">shares@ndzh.com</a>&gt;, "<a =
href=3D"mailto:idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">idr@ietf.org</a>" &lt;<a =
href=3D"mailto:idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">idr@ietf.org</a>&gt;<br class=3D""><b =
class=3D"">Cc:<span class=3D"Apple-converted-space">&nbsp;</span></b>"<a =
href=3D"mailto:jgs@bgp.nu" style=3D"color: purple; text-decoration: =
underline;" class=3D"">jgs@bgp.nu</a>" &lt;<a href=3D"mailto:jgs@bgp.nu" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">jgs@bgp.nu</a>&gt;<br class=3D""><b class=3D"">Subject:<span =
class=3D"Apple-converted-space">&nbsp;</span></b>[Idr] Regarding =
draft-vandevelde-idr-flowspec-path-redirect//<span lang=3D"ZH-CN" =
style=3D"font-family: 'MS Gothic';" class=3D"">=E7=AD=94=E5=A4=8D</span>: =
IDR interim (10/26/2015) 10:00am - 11:30am ET update<o:p =
class=3D""></o:p></div></div></div><div class=3D""><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span style=3D"font-size: 10.5pt;" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div></div><div =
class=3D""><div class=3D""><div class=3D""><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">Hi Gunter,</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">Regarding your =
presentation, I have following comments:</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">Do you mean draft-hao-idr-flowspec-redirect-tunnel is to =
signal tunnel setup info? draft-hao-idr-flowspec-redirect-tunnel is to =
steer traffic to the tunnel instead of signal tunnel setup.</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">I am not sure if the reuse of =
draft-rosen-idr-tunnel-encaps-00 in the draft make you confused? We just =
hope to &nbsp;just reuses the attributes of to specify the tunnel type =
to help steering</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">the traffic to tunnel. If =
this is not a good way, maybe we can define new attributes.</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">Best Regards,</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">Robin</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D""><span style=3D"font-size: =
10.5pt; color: rgb(31, 73, 125);" class=3D"">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span style=3D"font-size: 10.5pt; color: rgb(31, 73, 125);" =
class=3D"">&nbsp;</span><o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"border-style: solid none none; =
border-top-color: rgb(181, 196, 223); border-top-width: 1pt; padding: =
3pt 0in 0in;" class=3D""><div class=3D""><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><b class=3D""><span lang=3D"ZH-CN" style=3D"font-size: 10pt; =
font-family: SimSun;" class=3D"">=E5=8F=91=E4=BB=B6=E4=BA=BA</span></b><b =
class=3D""><span style=3D"font-size: 10pt; font-family: SimSun;" =
class=3D"">:</span></b><span style=3D"font-size: 10pt; font-family: =
SimSun;" class=3D""><span class=3D"Apple-converted-space">&nbsp;</span>Idr=
 [<a href=3D"mailto:idr-bounces@ietf.org" style=3D"color: purple; =
text-decoration: underline;" =
class=3D"">mailto:idr-bounces@ietf.org</a>]<span =
class=3D"Apple-converted-space">&nbsp;</span><b class=3D""><span =
lang=3D"ZH-CN" class=3D"">=E4=BB=A3=E8=A1=A8<span =
class=3D"Apple-converted-space">&nbsp;</span></span></b>Susan Hares<br =
class=3D""><b class=3D""><span lang=3D"ZH-CN" =
class=3D"">=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4</span>:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>2015<span lang=3D"ZH-CN" =
class=3D"">=E5=B9=B4</span>10<span lang=3D"ZH-CN" =
class=3D"">=E6=9C=88</span>25<span lang=3D"ZH-CN" =
class=3D"">=E6=97=A5</span><span =
class=3D"Apple-converted-space">&nbsp;</span>22:07<br class=3D""><b =
class=3D""><span lang=3D"ZH-CN" class=3D"">=E6=94=B6=E4=BB=B6=E4=BA=BA</sp=
an>:</b><span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:idr@ietf.org" style=3D"color: purple; text-decoration: =
underline;" class=3D"">idr@ietf.org</a><br class=3D""><b class=3D""><span =
lang=3D"ZH-CN" class=3D"">=E6=8A=84=E9=80=81</span>:</b><span =
class=3D"Apple-converted-space">&nbsp;</span><a href=3D"mailto:jgs@bgp.nu"=
 style=3D"color: purple; text-decoration: underline;" =
class=3D"">jgs@bgp.nu</a><br class=3D""><b class=3D""><span lang=3D"ZH-CN"=
 class=3D"">=E4=B8=BB=E9=A2=98</span>:</b><span =
class=3D"Apple-converted-space">&nbsp;</span>[Idr] IDR interim =
(10/26/2015) 10:00am - 11:30am ET update</span><o:p =
class=3D""></o:p></div></div></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">IDR WG members:<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">Below is an updated agenda for the IDR =
interim on 10/26/2015.<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">Sue<span class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">------------<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">IDR interim October 26, 2015<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">10:00 - 11:30am<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">1. Chair's slides [10:00-10:05]<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">1. =
draft-litkowski-idr-flowspec-interfaceset-01.txt<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; speaker: Stephane Litowski&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;Time: 10:05-10:15<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-inte=
rfaceset/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">https://datatracker.ietf.org/doc/draft-litkowski-idr-flowspec-i=
nterfaceset/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">2. draft-hao-idr-flowspec-redirect-tunnel-00<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker: Weiguo Hao<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Time: 10:15 - 10:25<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect-tu=
nnel/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-redirect=
-tunnel/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">3. =
draft-vandevelde-idr-flowspec-path-redirect<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker: Gunter Van De Velde<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Time: 10:25- 10:35<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-path=
-redirect/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-vandevelde-idr-flowspec-p=
ath-redirect/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">4. Draft Name: =
draft-hao-idr-flowspec-nvo3-02<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;Speaker: Weiguo Hao<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Duration: 10:35-10:40<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-hao-idr-flowspec-nvo3/</a=
><o:p class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">5. =
draft-liang-idr-bgp-flowspec-label-01.txt.<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker:<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;Duration: 10:40-10:45<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-label=
/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-la=
bel/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">6. draft-liang-idr-bgp-flowspec-time<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; presenter: Jianjie You<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; time: 10:45-10:55<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-time/=
" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-liang-idr-bgp-flowspec-ti=
me/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">7. Draft Name: draft-li-idr-mpls-path-programming-02<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker: Zhenbin Li<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Duration: 10:55-11:05<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programming=
/" style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-mpls-path-programm=
ing/</a><o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">7. Draft Name: draft-li-idr-flowspec-rpd-01<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Speaker: Shunwan Zhuang<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp; Duration: 11:05 - 11:15<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp;<a =
href=3D"http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/" =
style=3D"color: purple; text-decoration: underline;" =
class=3D"">http://datatracker.ietf.org/doc/draft-li-idr-flowspec-rpd/</a><=
o:p class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">8.&nbsp; Discussion of Flowspec drafts<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;&nbsp;&nbsp; 11:15 - 11:30am<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;<o:p class=3D""></o:p></div></div><div class=3D""><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">&nbsp;Meeting Web-ex information<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">&nbsp;Monday, October 26, 2015<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">10:00 am&nbsp; |&nbsp; Eastern Daylight Time (New York, =
GMT-04:00)&nbsp; |&nbsp; 2 hrs<o:p class=3D""></o:p></div></div><div =
class=3D""><div style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">&nbsp;<o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D"">webex infor:<span =
class=3D"Apple-converted-space">&nbsp;</span><o:p =
class=3D""></o:p></div></div><div class=3D""><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
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0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
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From nobody Wed Oct 28 14:32:56 2015
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From: Lucy yong <lucy.yong@huawei.com>
To: Gunter Van De Velde <guntervandeveldecc@icloud.com>
Thread-Topic: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//??: IDR interim (10/26/2015) 10:00am - 11:30am ET update
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Date: Wed, 28 Oct 2015 21:32:37 +0000
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Subject: Re: [Idr] Regarding draft-vandevelde-idr-flowspec-path-redirect//??: IDR interim (10/26/2015) 10:00am - 11:30am ET update
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From nobody Thu Oct 29 05:41:12 2015
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From: "Harley Green" <harley@br-envision.com>
To: <idr@ietf.org>
Date: Thu, 29 Oct 2015 08:41:05 -0400
Organization: BRE
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Subject: [Idr] DDoS-Alert BGP Extensions
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Greetings,

I'd like to quickly bring your attention to a new draft called DDoS-AE. The
purpose is to leverage the capabilities inherent in most BGP speakers to
distribute information about detected DDoS attacks so that these devices can
respond to those attacks (throttling/filtering traffic). This new approach
overcomes many of the shortcomings of existing standards as it does not
require new address types, nor does it require all BGP speakers to support
the capability for it to be effective. The target centric approach also
serves to leverage existing peering relationships/trust/policies to address
concerns of false DDoS Alert announcements.

 

The draft can be found here:
http://datatracker.ietf.org/doc/draft-green-idr-ddosae/

 

We have performed analytical studies to demonstrate the potential impact of
BGP speakers implementing this capability and the results are very
promising. I'd be happy to share the study as well as reference
implementation (in Quagga) with any interested parties.

 

Thank you for your consideration!

 

 

Harley Green

 

bre

 


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vlink=3Dpurple><div class=3DWordSection1><p =
class=3DMsoNormal>Greetings,<o:p></o:p></p><p =
class=3DMsoNormal>I&#8217;d like to quickly bring your attention to a =
new draft called DDoS-AE. The purpose is to leverage the capabilities =
inherent in most BGP speakers to distribute information about detected =
DDoS attacks so that these devices can respond to those attacks =
(throttling/filtering traffic). This new approach overcomes many of the =
shortcomings of existing standards as it does not require new address =
types, nor does it require all BGP speakers to support the capability =
for it to be effective. The target centric approach also serves to =
leverage existing peering relationships/trust/policies to address =
concerns of false DDoS Alert announcements.<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p><p class=3DMsoNormal>The draft =
can be found here: <a =
href=3D"http://datatracker.ietf.org/doc/draft-green-idr-ddosae/">http://d=
atatracker.ietf.org/doc/draft-green-idr-ddosae/</a><o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p><p class=3DMsoNormal>We have =
performed analytical studies to demonstrate the potential impact of BGP =
speakers implementing this capability and the results are very =
promising. I&#8217;d be happy to share the study as well as reference =
implementation (in Quagga) with any interested parties.<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p><p class=3DMsoNormal>Thank you =
for your consideration!<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><b><span =
style=3D'font-size:12.0pt'>Harley Green<o:p></o:p></span></b></p><p =
class=3DMsoNormal><b><span =
style=3D'font-size:12.0pt'><o:p>&nbsp;</o:p></span></b></p><p =
class=3DMsoNormal><img border=3D0 width=3D135 height=3D44 =
id=3D"Picture_x0020_1" src=3D"cid:image001.png@01D11225.8C84AC10" =
alt=3Dbre><o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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To: Harley Green <harley@br-envision.com>
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Subject: Re: [Idr] DDoS-Alert BGP Extensions
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Hi Harley,

Thank you for posting your draft.

Let me ask you three basic clarification questions as well as provide three
observations.

Q1:

Today as you know DDoS detection is very often perfomed at dedicated
devices -for example Arbor APSes. Such devices while in data path do not
originate BGP reachability information as such however they already support
RFC5575 to originate filtering information.

Assume that operator keep current model of DDoS detection what NLRI(s) your
new proposed attribute should be injected by APSes into the network ?

Q2:

While having an attribute attached to a prefix may work with PI prefixes I
fail to understand how it would at all work with PA prefixes ? An upstream
AS which owns the PA space will naturally suppress more specifics along
with attached attributes pretty much killing the idea of DDoS mitigation as
close to the attack sources as possible.

Q3:

Even assuming just PI space how are you going to map more then one attack
pattern for a given destination NLRI ? Would combining always all specific
attack vectors into one match be really a good idea ? That question is
specifically questioning the current choice of proposed DDoS-AE Alert
Attribute format.

O1:

You bring number of times reference to CS in the draft. That is a very good
idea however let's point out that all detection devices and/or route
reflectors/route servers can today also peer with RFC5575 to such CS. In
fact dissociation of IP reachability with attack vectors propagation to
such central oracle I would consider more as a positive feature.

O2:

As you point out in section 3.4 alert removal can be done by withdraw or
implicit update. Withdraw is out of the question. Aren't you afraid that by
using implicit IP reachability updates for removal of dynamic DDoS you will
introduce much more of global churn ? Do you have any study if some
implementations with enabled BGP dampening would not apply penalties ?

O3:

With the light of SIDR do you think that increasing dynamics of basic IP
reachability hence loading more crypto processing on routers is a way to go
globally ? IMHO having new SAFI for flow description and actions is a much
cleaner and practical solution.

Many thx,
r.












On Thu, Oct 29, 2015 at 1:41 PM, Harley Green <harley@br-envision.com>
wrote:

> Greetings,
>
> I=E2=80=99d like to quickly bring your attention to a new draft called DD=
oS-AE.
> The purpose is to leverage the capabilities inherent in most BGP speakers
> to distribute information about detected DDoS attacks so that these devic=
es
> can respond to those attacks (throttling/filtering traffic). This new
> approach overcomes many of the shortcomings of existing standards as it
> does not require new address types, nor does it require all BGP speakers =
to
> support the capability for it to be effective. The target centric approac=
h
> also serves to leverage existing peering relationships/trust/policies to
> address concerns of false DDoS Alert announcements.
>
>
>
> The draft can be found here:
> http://datatracker.ietf.org/doc/draft-green-idr-ddosae/
>
>
>
> We have performed analytical studies to demonstrate the potential impact
> of BGP speakers implementing this capability and the results are very
> promising. I=E2=80=99d be happy to share the study as well as reference
> implementation (in Quagga) with any interested parties.
>
>
>
> Thank you for your consideration!
>
>
>
>
>
> *Harley Green*
>
>
>
> [image: bre]
>
>
>
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr
>
>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,he=
lvetica,sans-serif;font-size:small">Hi Harley,</div><div class=3D"gmail_def=
ault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br>=
</div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,san=
s-serif;font-size:small">Thank you for posting your draft.=C2=A0</div><div =
class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;fon=
t-size:small"><br></div><div class=3D"gmail_default" style=3D"font-family:a=
rial,helvetica,sans-serif;font-size:small">Let me ask you three basic clari=
fication questions as well as provide three observations.</div><div class=
=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-siz=
e:small"><br></div><div class=3D"gmail_default" style=3D"font-family:arial,=
helvetica,sans-serif;font-size:small">Q1:=C2=A0</div><div class=3D"gmail_de=
fault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br=
></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sa=
ns-serif;font-size:small">Today as you know DDoS detection is very often pe=
rfomed at dedicated devices -for example Arbor APSes. Such devices while in=
 data path do not originate BGP reachability information as such however th=
ey already support RFC5575 to originate filtering information.=C2=A0</div><=
div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif=
;font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-fami=
ly:arial,helvetica,sans-serif;font-size:small">Assume that operator keep cu=
rrent model of DDoS detection what NLRI(s) your new proposed attribute shou=
ld be injected by APSes into the network ?=C2=A0</div><div class=3D"gmail_d=
efault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><b=
r></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,s=
ans-serif;font-size:small">Q2:=C2=A0</div><div class=3D"gmail_default" styl=
e=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div=
 class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;fo=
nt-size:small">While having an attribute attached to a prefix may work with=
 PI prefixes I fail to understand how it would at all work with PA prefixes=
 ? An upstream AS which owns the PA space will naturally suppress more spec=
ifics along with attached attributes pretty much killing the idea of DDoS m=
itigation as close to the attack sources as possible.=C2=A0</div><div class=
=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-siz=
e:small"><br></div><div class=3D"gmail_default" style=3D"font-family:arial,=
helvetica,sans-serif;font-size:small">Q3:=C2=A0</div><div class=3D"gmail_de=
fault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br=
></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sa=
ns-serif;font-size:small">Even assuming just PI space how are you going to =
map more then one attack pattern for a given destination NLRI ? Would combi=
ning always all specific attack vectors into one match be really a good ide=
a ? That question is specifically questioning the current choice of propose=
d DDoS-AE Alert Attribute format.=C2=A0</div><div class=3D"gmail_default" s=
tyle=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div><=
div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif=
;font-size:small">O1:=C2=A0</div><div class=3D"gmail_default" style=3D"font=
-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class=3D=
"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:s=
mall">You bring number of times reference to CS in the draft. That is a ver=
y good idea however let&#39;s point out that all detection devices and/or r=
oute reflectors/route servers can today also peer with RFC5575 to such CS. =
In fact dissociation of IP reachability with attack vectors propagation to =
such central oracle I would consider more as a positive feature.</div><div =
class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;fon=
t-size:small"><br></div><div class=3D"gmail_default" style=3D"font-family:a=
rial,helvetica,sans-serif;font-size:small">O2:=C2=A0</div><div class=3D"gma=
il_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small=
"><br></div><div class=3D"gmail_default" style=3D"font-family:arial,helveti=
ca,sans-serif;font-size:small">As you point out in section 3.4 alert remova=
l can be done by withdraw or implicit update. Withdraw is out of the questi=
on. Aren&#39;t you afraid that by using implicit IP reachability updates fo=
r removal of dynamic DDoS you will introduce much more of global churn ? Do=
 you have any study if some implementations with enabled BGP dampening woul=
d not apply penalties ?=C2=A0</div><div class=3D"gmail_default" style=3D"fo=
nt-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class=
=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-siz=
e:small">O3:=C2=A0</div><div class=3D"gmail_default" style=3D"font-family:a=
rial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_de=
fault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">Wit=
h the light of SIDR do you think that increasing dynamics of basic IP reach=
ability hence loading more crypto processing on routers is a way to go glob=
ally ? IMHO having new SAFI for flow description and actions is a much clea=
ner and practical solution.=C2=A0</div><div class=3D"gmail_default" style=
=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div =
class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;fon=
t-size:small">Many thx,</div><div class=3D"gmail_default" style=3D"font-fam=
ily:arial,helvetica,sans-serif;font-size:small">r.</div><div class=3D"gmail=
_default" style=3D"font-family:arial,helvetica,sans-serif;font-size:small">=
<br></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica=
,sans-serif;font-size:small"><br></div><div class=3D"gmail_default" style=
=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div =
class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;fon=
t-size:small"><br></div><div class=3D"gmail_default" style=3D"font-family:a=
rial,helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_de=
fault" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br=
></div><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sa=
ns-serif;font-size:small"><br></div><div class=3D"gmail_default" style=3D"f=
ont-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class=
=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif;font-siz=
e:small"><br></div><div class=3D"gmail_default" style=3D"font-family:arial,=
helvetica,sans-serif;font-size:small"><br></div><div class=3D"gmail_default=
" style=3D"font-family:arial,helvetica,sans-serif;font-size:small"><br></di=
v></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Thu, O=
ct 29, 2015 at 1:41 PM, Harley Green <span dir=3D"ltr">&lt;<a href=3D"mailt=
o:harley@br-envision.com" target=3D"_blank">harley@br-envision.com</a>&gt;<=
/span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8=
ex;border-left:1px #ccc solid;padding-left:1ex"><div lang=3D"EN-US" link=3D=
"blue" vlink=3D"purple"><div><p class=3D"MsoNormal">Greetings,<u></u><u></u=
></p><p class=3D"MsoNormal">I=E2=80=99d like to quickly bring your attentio=
n to a new draft called DDoS-AE. The purpose is to leverage the capabilitie=
s inherent in most BGP speakers to distribute information about detected DD=
oS attacks so that these devices can respond to those attacks (throttling/f=
iltering traffic). This new approach overcomes many of the shortcomings of =
existing standards as it does not require new address types, nor does it re=
quire all BGP speakers to support the capability for it to be effective. Th=
e target centric approach also serves to leverage existing peering relation=
ships/trust/policies to address concerns of false DDoS Alert announcements.=
<u></u><u></u></p><p class=3D"MsoNormal">=C2=A0<u></u><u></u></p><p class=
=3D"MsoNormal">The draft can be found here: <a href=3D"http://datatracker.i=
etf.org/doc/draft-green-idr-ddosae/" target=3D"_blank">http://datatracker.i=
etf.org/doc/draft-green-idr-ddosae/</a><u></u><u></u></p><p class=3D"MsoNor=
mal">=C2=A0<u></u><u></u></p><p class=3D"MsoNormal">We have performed analy=
tical studies to demonstrate the potential impact of BGP speakers implement=
ing this capability and the results are very promising. I=E2=80=99d be happ=
y to share the study as well as reference implementation (in Quagga) with a=
ny interested parties.<u></u><u></u></p><p class=3D"MsoNormal">=C2=A0<u></u=
><u></u></p><p class=3D"MsoNormal">Thank you for your consideration!<u></u>=
<u></u></p><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><p class=3D"MsoNo=
rmal"><u></u>=C2=A0<u></u></p><p class=3D"MsoNormal"><b><span style=3D"font=
-size:12.0pt">Harley Green<u></u><u></u></span></b></p><p class=3D"MsoNorma=
l"><b><span style=3D"font-size:12.0pt"><u></u>=C2=A0<u></u></span></b></p><=
p class=3D"MsoNormal"><img border=3D"0" width=3D"135" height=3D"44" src=3D"=
cid:image001.png@01D11225.8C84AC10" alt=3D"bre"><u></u><u></u></p><p class=
=3D"MsoNormal"><u></u>=C2=A0<u></u></p></div></div><br>____________________=
___________________________<br>
Idr mailing list<br>
<a href=3D"mailto:Idr@ietf.org">Idr@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/idr" rel=3D"noreferrer" ta=
rget=3D"_blank">https://www.ietf.org/mailman/listinfo/idr</a><br>
<br></blockquote></div><br></div>

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Rick,

Jeff,



>Should there be an additional edits, I'd suggest removing "subprefix" and

> consistently using "more specific prefix".



Thanks. No problem. I will plan to take care of this change in the next rev=
ision

along with a few other comments that have been shared recently on the GROW =
list.



Sriram





________________________________
From: Rick Casarez <rick.casarez@gmail.com>
Sent: Thursday, October 15, 2015 2:20 PM
To: Jeffrey Haas
Cc: Sriram, Kotikalapudi; idr wg list; grow@ietf.org; Charles van Niman; An=
drei Robachevsky (robachevsky@isoc.org)
Subject: Re: [GROW] I-D Action: draft-ietf-grow-route-leak-problem-definiti=
on-03.txt

I would concur on Jeff's suggestion.

Otherwise I like the draft.

-------------------
Cheers, Rick

Experiences not things.

On Wed, Oct 14, 2015 at 10:52 AM, Jeffrey Haas <jhaas@pfrc.org<mailto:jhaas=
@pfrc.org>> wrote:
On Tue, Oct 13, 2015 at 02:58:26AM +0000, Sriram, Kotikalapudi wrote:
> This version (draft-ietf-grow-route-leak-problem-definition-03)
> is a significantly revised and updated draft relative to version-02.
> The document (version-02) was in WGLC in the GROW WG.
> Many thanks to Charles, Jeff, Wes and Andrei for their
> review, comments, and support in response to WGLC
> in GROW (it was cross posted to IDR as well).
> The authors have considered all their comments/suggestions in revising th=
is draft,
> and we feel that it has significantly benefited  from their recent review=
/re-review.

Thanks, Sriram.  You've addressed my comments.

Should there be an additional edits, I'd suggest removing "subprefix" and
consistently using "more specific prefix".

-- Jeff

_______________________________________________
GROW mailing list
GROW@ietf.org<mailto:GROW@ietf.org>
https://www.ietf.org/mailman/listinfo/grow


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<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1">
<style type=3D"text/css" style=3D"display:none;"><!-- P {margin-top:0;margi=
n-bottom:0;} --></style>
</head>
<body dir=3D"ltr">
<div id=3D"divtagdefaultwrapper" style=3D"font-size:12pt;color:#000000;back=
ground-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;">
<p><br>
Rick,</p>
<p>Jeff,</p>
<p>&nbsp;</p>
<p>&gt;Should there be an additional edits, I'd suggest removing &quot;subp=
refix&quot; and </p>
<p>&gt; consistently using &quot;more specific prefix&quot;.</p>
<p>&nbsp;</p>
<p>Thanks. No problem. I will plan to take care of this change in the next =
revision</p>
<p>along with a few other comments that have been shared recently on the GR=
OW list.</p>
<p>&nbsp;</p>
<p>Sriram&nbsp;&nbsp;<br>
</p>
<p>&nbsp;</p>
<p><br>
</p>
<div id=3D"Signature">
<div><font face=3D"Tahoma" size=3D"2"></font></div>
</div>
<br>
<br>
<div style=3D"color: rgb(0, 0, 0);">
<hr tabindex=3D"-1" style=3D"width: 98%; display: inline-block;">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font color=3D"#000000" face=3D"Calib=
ri, sans-serif" style=3D"font-size: 11pt;"><b>From:</b> Rick Casarez &lt;ri=
ck.casarez@gmail.com&gt;<br>
<b>Sent:</b> Thursday, October 15, 2015 2:20 PM<br>
<b>To:</b> Jeffrey Haas<br>
<b>Cc:</b> Sriram, Kotikalapudi; idr wg list; grow@ietf.org; Charles van Ni=
man; Andrei Robachevsky (robachevsky@isoc.org)<br>
<b>Subject:</b> Re: [GROW] I-D Action: draft-ietf-grow-route-leak-problem-d=
efinition-03.txt</font>
<div>&nbsp;</div>
</div>
<div>
<div dir=3D"ltr">
<div>I would concur on Jeff's suggestion.<br>
<br>
</div>
Otherwise I like the draft.<br>
</div>
<div class=3D"gmail_extra"><br clear=3D"all">
<div>
<div class=3D"gmail_signature">
<div dir=3D"ltr">-------------------<br>
Cheers, Rick<br>
<br>
Experiences not things.</div>
</div>
</div>
<br>
<div class=3D"gmail_quote">On Wed, Oct 14, 2015 at 10:52 AM, Jeffrey Haas <=
span dir=3D"ltr">
&lt;<a href=3D"mailto:jhaas@pfrc.org" target=3D"_blank">jhaas@pfrc.org</a>&=
gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin: 0px 0px 0px 0.8ex; paddi=
ng-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px=
; border-left-style: solid;">
<span>On Tue, Oct 13, 2015 at 02:58:26AM &#43;0000, Sriram, Kotikalapudi wr=
ote:<br>
&gt; This version (draft-ietf-grow-route-leak-problem-definition-03)<br>
&gt; is a significantly revised and updated draft relative to version-02.<b=
r>
&gt; The document (version-02) was in WGLC in the GROW WG.<br>
&gt; Many thanks to Charles, Jeff, Wes and Andrei for their<br>
&gt; review, comments, and support in response to WGLC<br>
&gt; in GROW (it was cross posted to IDR as well).<br>
&gt; The authors have considered all their comments/suggestions in revising=
 this draft,<br>
&gt; and we feel that it has significantly benefited&nbsp; from their recen=
t review/re-review.<br>
<br>
</span>Thanks, Sriram.&nbsp; You've addressed my comments.<br>
<br>
Should there be an additional edits, I'd suggest removing &quot;subprefix&q=
uot; and<br>
consistently using &quot;more specific prefix&quot;.<br>
<br>
-- Jeff<br>
<div class=3D"HOEnZb">
<div class=3D"h5"><br>
_______________________________________________<br>
GROW mailing list<br>
<a href=3D"mailto:GROW@ietf.org">GROW@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/grow" target=3D"_blank" re=
l=3D"noreferrer">https://www.ietf.org/mailman/listinfo/grow</a><br>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</div>
</body>
</html>

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If you are planning to participate in the IDR session here at IETF 94 on =
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