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Subject: [Teas] I-D Action: draft-ietf-teas-lsp-attribute-ro-02.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 Traffic Engineering Architecture and Signaling Working Group of the IETF.

        Title           : LSP Attribute in ERO
        Authors         : Cyril Margaria
                          Giovanni Martinelli
                          Steve Balls
                          Ben Wright
	Filename        : draft-ietf-teas-lsp-attribute-ro-02.txt
	Pages           : 13
	Date            : 2015-02-02

Abstract:
   RFC5420 extends RSVP-TE to specify or record generic attributes which
   apply to the whole of the path of an LSP.  This document defines an
   extension to the RSVP ERO and RRO objects to allow it to specify or
   record generic attributes which apply to a given hop.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-teas-lsp-attribute-ro/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-teas-lsp-attribute-ro-02

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-teas-lsp-attribute-ro-02


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From nobody Tue Feb  3 06:34:14 2015
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From: Lou Berger <lberger@labn.net>
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Subject: Re: [Teas] I-D Action: draft-ietf-teas-lsp-attribute-ro-00.txt
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Authors,
    This change looks pretty good.  One minor change was missed, but
it's minor enough to pick up on the rev:

Per http://www.ietf.org/mail-archive/web/teas/current/msg00110.html:

> Section 2.2 changes, the text here looks good to me. I'd add "The set
> of valid flags are defined in section 4.3" as a forward reference to
> make life easier for the reader.

Adrian,
	I think the doc is now back to you.

Lou (as Shepherd)

On 12/9/2014 1:36 PM, internet-drafts@ietf.org wrote:
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
>  This draft is a work item of the Traffic Engineering Architecture and Signaling Working Group of the IETF.
>
>         Title           : LSP Attribute in ERO
>         Authors         : Cyril Margaria
>                           Giovanni Martinelli
>                           Steve Balls
>                           Ben Wright
> 	Filename        : draft-ietf-teas-lsp-attribute-ro-00.txt
> 	Pages           : 12
> 	Date            : 2014-12-09
>
> Abstract:
>    RFC5420 extends RSVP-TE to specify or record generic attributes which
>    apply to the whole of the path of an LSP.  This document proposes an
>    extension to the RSVP ERO and RRO objects to allow it to specify or
>    record generic attributes which apply to a given hop.
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-teas-lsp-attribute-ro/
>
> There's also a htmlized version available at:
> http://tools.ietf.org/html/draft-ietf-teas-lsp-attribute-ro-00
>
>
> 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/
>
> _______________________________________________
> Teas mailing list
> Teas@ietf.org
> https://www.ietf.org/mailman/listinfo/teas
>


From nobody Tue Feb  3 20:07:38 2015
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Subject: [Teas] I-D Action: draft-ietf-teas-rsvp-egress-protection-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 Traffic Engineering Architecture and Signaling Working Group of the IETF.

        Title           : Extensions to RSVP-TE for LSP Egress Local Protection
        Authors         : Huaimo Chen
                          Ning So
                          Autumn Liu
                          Tarek Saad
                          Fengman Xu
	Filename        : draft-ietf-teas-rsvp-egress-protection-01.txt
	Pages           : 17
	Date            : 2015-02-03

Abstract:
   This document describes extensions to Resource Reservation Protocol -
   Traffic Engineering (RSVP-TE) for locally protecting egress nodes of
   a Traffic Engineered (TE) Label Switched Path (LSP), which is a
   Point-to-Point (P2P) LSP or a Point-to-Multipoint (P2MP) LSP.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-teas-rsvp-egress-protection/

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http://tools.ietf.org/html/draft-ietf-teas-rsvp-egress-protection-01

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http://www.ietf.org/rfcdiff?url2=draft-ietf-teas-rsvp-egress-protection-01


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From nobody Tue Feb  3 20:17:32 2015
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From: Huaimo Chen <huaimo.chen@huawei.com>
To: "teas@ietf.org" <teas@ietf.org>
Thread-Topic: [Teas] I-D Action: draft-ietf-teas-rsvp-egress-protection-01.txt
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Subject: Re: [Teas] I-D Action: draft-ietf-teas-rsvp-egress-protection-01.txt
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Hi Everyone,

    We updated the draft in this version (-01) according to Lou's comments.=
 For your convenience, a brief explanation for the response to each of Lou'=
s comments is inline below. We welcome your comments for the updated draft.

Best Regards,
Huaimo
> From: Lou Berger [mailto:lberger@labn.net]
> Sent: Wednesday, December 31, 2014 7:48 AM
> To: Huaimo Chen
> Cc: Ross Callon; db3546@att.com; Lu Huang; Lei Liu; Lizhenbin; Autumn=20
> Liu; Tarek Saad; Ning So; Fengman Xu; Mehmet Toy; Loa Andersson;=20
> swallow@cisco.com
> Subject: Re: Request for WGLC for=20
> draft-ietf-teas-rsvp-egress-protection
>
> Huaimo,
>     I just took a quick skim through the document and see a few things th=
at should be addressed:
>
> - You have a lot of names on the front page.  The RFC editor's guidance i=
s a max of 5 names on the front page.  Getting to this number will smooth t=
he publication  process.
> [Huaimo] Keep 5 names on the front page in the updated draft.
>
> - There are a number of nits that would be good to clean up.
> [Huaimo] Cleaned up.
>
> - You have conformance (RFC2119) language in informative text [Huaimo]=20
> Removed conformance language in informative text.
>
> - You mention GMPLS, which is good, but don't mention how the document re=
lates to RFC4872 and 4873.  I'm not saying that the document can't be limit=
ed to FRR protection, but do want to at least discuss if a unified approach=
 can be found for FRR and 4873 style segment protection.  The conclusion of=
 this discussion will need to reflected in someway in the document, either =
as a change in the mechanisms or an explicit statement of scope.
> [Huaimo] Removed GMPLS from abstract. But added some text relating to RFC=
 4873 in the document.
>
> - You can define values for objects/TLVs defined in this document.
> [Huaimo] Defined values for new objects/TLVs.
>
> - You combined v4/v6 object definition is subject to misinterpretation.=20
> It needs to be clarified.  I suggest using past RFCs as a reference of ho=
w this can be done, e.g., see RFC4875.
> [Huaimo] Defined IPv4 and IPv6 objects separately.
>
> - You should reference where the FAST_REROUTE object is defined in=20
> section 4.2 [Huaimo] Removed this section. Moved flags into EGRESS_BACKUP=
 object since the flags are specific to egress protection.
>
> - Section 5 seems to be a mix informative and normative text.  It's not c=
lear if all required behaviors have normative language. I suspect there are=
 a number of cases missing - particularly, but not exclusively, in the lang=
uage around processing that is the same as / different than RFC4090, which =
is generally very loosely defined.
> [Huaimo] Separated informative and normative text, make sure all required=
 behaviors in normative language.
>
> - The term "The S2L Sub LSP Protection" is first in the procedures sectio=
n.  It's definition / introduction is needed somewhere, either by reference=
 or earlier in the document.  Consider if you even need to introduce this n=
ew term.
> [Huaimo] Introduced "S2L Sub LSP Protection".=20
>
> - Section 6.3 seems like it's going to be an informative section, but the=
n conformance language shows up.  I suspect the conformance language belong=
s in Section 5.
> [Huaimo] Removed the conformance language in this section.
>
> - Section 7 is pretty light, I suspect you can find more to say on this t=
opic.
> [Huaimo] Added more on this topic.
>
> - The iana section doesn't follow rfc5226.  See some recent RFCs for exam=
ples. (I just reviewed draft-ietf-teas-rsvp-te-li-lb and it provides an exa=
mple for exiting registries, but not establishing a new one.=20
> [Huaimo] Re-wrote IANA section.
>
> - Your references need to be revisited/cleaned up.  There are some clearl=
y stale references and the normative/informative split doesn't make a whole=
 lot of sense.
> [Huaimo] Cleaned up the references.
>
> That's what I see based on a quick skim.=20
>
> Also, when do you expect to upload draft-ietf-teas-rsvp-ingress-protectio=
n?
> [Huaimo] draft-ietf-teas-rsvp-ingress-protection is uploaded. It is ready=
 for WGLC.
>
> Happy new year to you as well.
>
> Lou
=20


From nobody Wed Feb  4 06:10:28 2015
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The IESG has received a request from the Traffic Engineering Architecture
and Signaling WG (teas) to consider the following document:
- 'GMPLS RSVP-TE Extensions for Lock Instruct and Loopback'
  <draft-ietf-teas-rsvp-te-li-lb-03.txt> as Proposed Standard

The IESG plans to make a decision in the next few weeks, and solicits
final comments on this action. Please send substantive comments to the
ietf@ietf.org mailing lists by 2015-02-18. Exceptionally, comments may be
sent to iesg@ietf.org instead. In either case, please retain the
beginning of the Subject line to allow automated sorting.

Abstract

   This document specifies extensions to Resource Reservation Protocol-
   Traffic Engineering (RSVP-TE) to support Lock Instruct (LI) and
   Loopback (LB) mechanisms for Label Switched Paths (LSPs).  These
   mechanisms are applicable to technologies which use Generalized
   Multi-Protocol Label Switching (GMPLS) as control plane.

The file can be obtained via
http://datatracker.ietf.org/doc/draft-ietf-teas-rsvp-te-li-lb/

IESG discussion can be tracked via
http://datatracker.ietf.org/doc/draft-ietf-teas-rsvp-te-li-lb/ballot/


No IPR declarations have been submitted directly on this I-D.


From nobody Wed Feb  4 06:21:38 2015
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Cc: teas@ietf.org
Subject: [Teas] Last Call: <draft-ietf-teas-lsp-attribute-ro-02.txt> (LSP Attribute in ERO) to Proposed Standard
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The IESG has received a request from the Traffic Engineering Architecture
and Signaling WG (teas) to consider the following document:
- 'LSP Attribute in ERO'
  <draft-ietf-teas-lsp-attribute-ro-02.txt> as Proposed Standard

The IESG plans to make a decision in the next few weeks, and solicits
final comments on this action. Please send substantive comments to the
ietf@ietf.org mailing lists by 2015-02-18. Exceptionally, comments may be
sent to iesg@ietf.org instead. In either case, please retain the
beginning of the Subject line to allow automated sorting.

Abstract

   RFC5420 extends RSVP-TE to specify or record generic attributes which
   apply to the whole of the path of an LSP.  This document defines an
   extension to the RSVP ERO and RRO objects to allow it to specify or
   record generic attributes which apply to a given hop.

The file can be obtained via
http://datatracker.ietf.org/doc/draft-ietf-teas-lsp-attribute-ro/

IESG discussion can be tracked via
http://datatracker.ietf.org/doc/draft-ietf-teas-lsp-attribute-ro/ballot/


No IPR declarations have been submitted directly on this I-D.


From nobody Fri Feb  6 09:34:01 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Rakesh Gandhi \(rgandhi\)'" <rgandhi@cisco.com>, <draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp.all@ietf.org>
References: <049b01d03650$f6300490$e2900db0$@olddog.co.uk> <D0E83F05.4D1BD%rgandhi@cisco.com>
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Date: Fri, 6 Feb 2015 17:33:49 -0000
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Cc: "'Alvaro Retana \(aretana\)'" <aretana@cisco.com>, teas@ietf.org
Subject: Re: [Teas] AD review of draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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I'm sorry, were you waiting for a response from me?

I think you have covered all of my points and you can make and post a new
revision, then we'll move on.

A

> -----Original Message-----
> From: Rakesh Gandhi (rgandhi) [mailto:rgandhi@cisco.com]
> Sent: 23 January 2015 23:17
> To: adrian@olddog.co.uk; draft-ietf-teas-mpls-tp-rsvpte-ext-associated-
> lsp.all@ietf.org
> Cc: teas@ietf.org; Alvaro Retana (aretana)
> Subject: Re: AD review of draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
> 
> Thank you Adrian for the thorough review.
> 
> Please see replies inline .. <RG> ..
> 
> 
> On 2015-01-22 9:37 AM, "Adrian Farrel" <adrian@olddog.co.uk> wrote:
> 
> >Thanks for this document which I found clear and not too long.
> 
> <RG> Thank you.
> 
> >
> >I have done my usual AD review to try to flush out any issues that
> >might otherwise show up in IETF last call or IESG review.
> >
> >The only largish issue I have is about error conditions. Pretty much the
> >only error handling I see is in 5.3 where you have:
> >
> >   An egress node, upon receiving a Path message containing an
> >   ASSOCIATION or Extended ASSOCIATION Object with Association Type set
> >   to "Single Sided Associated Bidirectional LSP" MUST create an LSP in
> >   the reverse direction or reject the Path message by sending a
> >   PathErr.
> >
> >...but you don't say what reason code to give.
> >
> 
> 
> ><RG> Ack, please see below.
> >
> >
> >You need to handle some other error conditions such as...
> >
> >**** race conditions
> >**** what if the association is triggered by both ends at the same time?
> >
> 
> ><RG> For double sided provisioning, this is expected and may not
> >necessary be an error. For single sided provisioning, this should not
> >happen given egress node only triggers reverse LSP as a response to the
> >incoming LSP.
> >
> >**** what if the reverse dirn LSP has already been associated with
> >something else?
> >
> 
> ><RG> This can happen when an LSP on one side is being rerouted, and may
> >not necessarily be an error condition. For example, during MBB, there
> >will be two LSPs and association may be updated at some time during the
> >MBB process.
> >
> >**** failure conditions
> >**** what if not willing or able to associate?
> >
> 
> 
> ><RG> It is a bit difficult to know if this is really an error or it is a
> >transient condition due to LSP reroute or while node is being
> >provisioned, or there is provisioning error, etc. In such cases,
> >bidirectional LSP state would stay down so there should not any effect on
> >traffic.
> >
> >
> >**** what if set-up of reverse LSP fails?
> >**** what if requested REVERSE LSP parameters are not acceptable?
> >
> >
> 
> ><RG> These are for single sided provisioning, right? For both of the
> >above cases, we can add a new PathErr ("LSP Admission Failure/Reverse LSP
> >Failure". Operator needs to then check the egress node as reverse LSP
> >failure could be for many different reasons. If you agree, we can add a
> >new PathErr code in the document (Reverse LSP Failure).
> >
> >
> >**** what if the remote end point doesn't support the association
> >mechanism defined here? how will the initiator know?
> >
> 
> ><RG> An egress node may send PathErr ("LSP Admission Failure/Bad
> >Association Type" [RFC4872]. We can add it in the document if you agree.
> >
> >
> >
> 
> <SNIP>
> 
> 
> Thanks,
> 
> Rakesh
> 



From nobody Fri Feb  6 10:03:01 2015
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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp.all@ietf.org" <draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp.all@ietf.org>
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Date: Fri, 6 Feb 2015 18:02:54 +0000
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Cc: "Alvaro Retana \(aretana\)" <aretana@cisco.com>, "teas@ietf.org" <teas@ietf.org>
Subject: Re: [Teas] AD review of draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Acking, Thank you Adrian.


On 2015-02-06 12:33 PM, "Adrian Farrel" <adrian@olddog.co.uk> wrote:

>I'm sorry, were you waiting for a response from me?
>
>I think you have covered all of my points and you can make and post a new
>revision, then we'll move on.
>
>A
>
>> -----Original Message-----
>> From: Rakesh Gandhi (rgandhi) [mailto:rgandhi@cisco.com]
>> Sent: 23 January 2015 23:17
>> To: adrian@olddog.co.uk; draft-ietf-teas-mpls-tp-rsvpte-ext-associated-
>> lsp.all@ietf.org
>> Cc: teas@ietf.org; Alvaro Retana (aretana)
>> Subject: Re: AD review of
>>draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
>>=20
>> Thank you Adrian for the thorough review.
>>=20
>> Please see replies inline .. <RG> ..
>>=20
>>=20
>> On 2015-01-22 9:37 AM, "Adrian Farrel" <adrian@olddog.co.uk> wrote:
>>=20
>> >Thanks for this document which I found clear and not too long.
>>=20
>> <RG> Thank you.
>>=20
>> >
>> >I have done my usual AD review to try to flush out any issues that
>> >might otherwise show up in IETF last call or IESG review.
>> >
>> >The only largish issue I have is about error conditions. Pretty much
>>the
>> >only error handling I see is in 5.3 where you have:
>> >
>> >   An egress node, upon receiving a Path message containing an
>> >   ASSOCIATION or Extended ASSOCIATION Object with Association Type set
>> >   to "Single Sided Associated Bidirectional LSP" MUST create an LSP in
>> >   the reverse direction or reject the Path message by sending a
>> >   PathErr.
>> >
>> >...but you don't say what reason code to give.
>> >
>>=20
>>=20
>> ><RG> Ack, please see below.
>> >
>> >
>> >You need to handle some other error conditions such as...
>> >
>> >**** race conditions
>> >**** what if the association is triggered by both ends at the same
>>time?
>> >
>>=20
>> ><RG> For double sided provisioning, this is expected and may not
>> >necessary be an error. For single sided provisioning, this should not
>> >happen given egress node only triggers reverse LSP as a response to the
>> >incoming LSP.
>> >
>> >**** what if the reverse dirn LSP has already been associated with
>> >something else?
>> >
>>=20
>> ><RG> This can happen when an LSP on one side is being rerouted, and may
>> >not necessarily be an error condition. For example, during MBB, there
>> >will be two LSPs and association may be updated at some time during the
>> >MBB process.
>> >
>> >**** failure conditions
>> >**** what if not willing or able to associate?
>> >
>>=20
>>=20
>> ><RG> It is a bit difficult to know if this is really an error or it is
>>a
>> >transient condition due to LSP reroute or while node is being
>> >provisioned, or there is provisioning error, etc. In such cases,
>> >bidirectional LSP state would stay down so there should not any effect
>>on
>> >traffic.
>> >
>> >
>> >**** what if set-up of reverse LSP fails?
>> >**** what if requested REVERSE LSP parameters are not acceptable?
>> >
>> >
>>=20
>> ><RG> These are for single sided provisioning, right? For both of the
>> >above cases, we can add a new PathErr ("LSP Admission Failure/Reverse
>>LSP
>> >Failure". Operator needs to then check the egress node as reverse LSP
>> >failure could be for many different reasons. If you agree, we can add a
>> >new PathErr code in the document (Reverse LSP Failure).
>> >
>> >
>> >**** what if the remote end point doesn't support the association
>> >mechanism defined here? how will the initiator know?
>> >
>>=20
>> ><RG> An egress node may send PathErr ("LSP Admission Failure/Bad
>> >Association Type" [RFC4872]. We can add it in the document if you
>>agree.
>> >
>> >
>> >
>>=20
>> <SNIP>
>>=20
>>=20
>> Thanks,
>>=20
>> Rakesh
>>=20
>
>


From nobody Fri Feb  6 15:59:40 2015
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Subject: [Teas] I-D Action: draft-ietf-teas-interconnected-te-info-exchange-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 Traffic Engineering Architecture and Signaling Working Group of the IETF.

        Title           : Problem Statement and Architecture for Information Exchange Between Interconnected Traffic Engineered Networks
        Authors         : Adrian Farrel
                          John Drake
                          Nabil Bitar
                          George Swallow
                          Daniele Ceccarelli
                          Xian Zhang
	Filename        : draft-ietf-teas-interconnected-te-info-exchange-01.txt
	Pages           : 56
	Date            : 2015-02-06

Abstract:
   In Traffic Engineered (TE) systems, it is sometimes desirable to
   establish an end-tfo-end TE path with a set of constraints (such as
   bandwidth) across one or more network from a source to a destination.
   TE information is the data relating to nodes and TE links that is
   used in the process of selecting a TE path.  The availability of TE
   information is usually limited to within a network (such as an IGP
   area) often referred to as a domain.

   In order to determine the potential to establish a TE path through a
   series of connected networks, it is necessary to have available a
   certain amount of TE information about each network.  This need not
   be the full set of TE information available within each network, but
   does need to express the potential of providing TE connectivity. This
   subset of TE information is called TE reachability information.

   This document sets out the problem statement and architecture for the
   exchange of TE information between interconnected TE networks in
   support of end-to-end TE path establishment.  For reasons that are
   explained in the document, this work is limited to simple TE
   constraints and information that determine TE reachability.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-teas-interconnected-te-info-exchange/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-teas-interconnected-te-info-exchange-01

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-teas-interconnected-te-info-exchange-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 Fri Feb  6 16:02:48 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
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Subject: [Teas] FW: I-D Action: draft-ietf-teas-interconnected-te-info-exchange-01.txt
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All,

Working towards my promise given to the then CCAMP chairs (but presumably
transferred to the TEAS chairs), I have attacked one of the four TBD sections in
this draft by writing some Security Considerations text.

Would welcome comments on that text, on the other three TBD sections, or on the
draft as a whole.

Thanks,
Adrian

> -----Original Message-----
> From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of
internet-drafts@ietf.org
> Sent: 07 February 2015 00:00
> To: i-d-announce@ietf.org
> Cc: teas@ietf.org
> Subject: [Teas] I-D Action: draft-ietf-teas-interconnected-te-info-exchange-
> 01.txt
> 
> 
> A New Internet-Draft is available from the on-line Internet-Drafts
directories.
>  This draft is a work item of the Traffic Engineering Architecture and
Signaling
> Working Group of the IETF.
> 
>         Title           : Problem Statement and Architecture for Information
Exchange
> Between Interconnected Traffic Engineered Networks
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-teas-interconnected-te-info-
> exchange/


From nobody Sun Feb  8 10:56:46 2015
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Subject: [Teas] I-D Action: draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-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 Traffic Engineering Architecture and Signaling Working Group of the IETF.

        Title           : RSVP-TE Extensions for Associated Bidirectional LSPs
        Authors         : Fei Zhang
                          Ruiquan Jing
                          Rakesh Gandhi
	Filename        : draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-01.txt
	Pages           : 19
	Date            : 2015-02-08

Abstract:
   This document describes Resource reSerVation Protocol (RSVP)
   extensions to bind two point-to-point unidirectional Label Switched
   Paths (LSPs) into an associated bidirectional LSP.  The association
   is achieved by defining new Association Types for use in ASSOCIATION
   and in Extended ASSOCIATION Objects.  One of these types enables
   independent provisioning of the associated bidirectional LSPs on both
   sides, while the other enables single sided provisioning.  The
   REVERSE_LSP Object is also defined to enable a single endpoint to
   specify all the parameters of an associated LSP in the single sided
   provisioning case.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-01

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-01


Please note that it may take a couple of minutes from the time of submission
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From nobody Sun Feb  8 11:04:42 2015
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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp.all@ietf.org" <draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp.all@ietf.org>
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Cc: "Alvaro Retana \(aretana\)" <aretana@cisco.com>, Lou Berger <lberger@labn.net>, "teas@ietf.org" <teas@ietf.org>
Subject: Re: [Teas] AD review of draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Hi all,

We have posted a new revision (01) to address the comments listed below
(except the last one, <RG2>).

Welcome your review comments.

Many thanks,
Rakesh


On 2015-01-24 10:23 AM, "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
wrote:

>Thank you Adrian for your detailed review comments.
>
>Please see inline .. <RG>..
>
>On 2015-01-22 9:37 AM, "Adrian Farrel" <adrian@olddog.co.uk> wrote:
>
>>Authors,
>>                =20
>>Thanks for this document which I found clear and not too long.
>>
>>I have done my usual AD review to try to flush out any issues that
>>might otherwise show up in IETF last call or IESG review.
>>
>>The only largish issue I have is about error conditions. Pretty much the
>>only error handling I see is in 5.3 where you have:
>>
>>   An egress node, upon receiving a Path message containing an
>>   ASSOCIATION or Extended ASSOCIATION Object with Association Type set
>>   to "Single Sided Associated Bidirectional LSP" MUST create an LSP in
>>   the reverse direction or reject the Path message by sending a
>>   PathErr.
>>
>>...but you don't say what reason code to give.
>>
>>You need to handle some other error conditions such as...
>>
>>**** race conditions
>>**** what if the association is triggered by both ends at the same time?
>>**** what if the reverse dirn LSP has already been associated with
>>     something else?
>>
>>**** failure conditions
>>**** what if not willing or able to associate?
>>**** what if set-up of reverse LSP fails?
>>**** what if requested REVERSE LSP parameters are not acceptable?
>>**** what if the remote end point doesn't support the association
>>
>>     mechanism defined here? how will the initiator know?
>
>
><RG> Please refer to another email thread to address this comment.

<RG2> Updated in the new revision.

>
>
>>
>>
>>I also have some smaller points as set out below.
>>
>>I'll put the I-D into "revised I-D needed" state while we discuss these
>>points and while you produce an update.
>>
>>Thanks for the work,
>>Adrian
>>
>>=3D=3D=3D=3D
>>
>>You have a different number of font-page authors and names in the
>>Authors' Addresses section.
>>
>>Looks like Fan Yang and Weilian Jiang should be moved to a
>>Contributors section.
>
><RG> Fixed.
><RG> FYI, I also fixed WG from CCAMP to TEAS at the top.
>
>>
>>---
>>
>>Section 1 is OK, but it would have been better to just list the relevant
>>requirements (7, 11, 12, 50) and then the additional requirement (14).
>>
>>Probably no need to change now, but my preference is to avoid the risk
>>of introducing an error during the copying or editorial process. If you
>>feel like making this change, I would be happier.
>
><RG> Find it easier to read the document when this text is in the same
>document. Prefer to keep it:)
>
>
>>
>>---
>>
>>Because you use RBNF in section 4, you need to add a statement to
>>Section 2 like:
>>
>>   This document uses the Routing Backus-Naur Form (RBNF) to define
>>   message formats as defined in [RFC5511].
>>
>>And then, of course, add a normative reference.
>
><RG> Added.
>
>>
>>---
>>
>>I think 2.1.1 is missing an important statement about co-routing.
>>
>>"A pair of reverse unidirectional LSPs that are associated to form an
>>associated bidirectional LSP do not necessarily follow the same path
>>through the network. If they do follow the same path, they are known as
>>'co-routed'."
>
>
><RG> Saw the email exchange with Lou. Thanks Lou. I am assuming we are
>keeping the text as is.
><RG> Note that this document does not discuss anything about co-routed
>LSPs.
>
>
>>
>>---
>>
>>3.1
>>
>>   This section provides an overview and definition of the models for
>>   provisioning bidirectional LSPs.
>>
>>This is missing the word "associated" to read "associated bidirectional"
>
><RG> Added.
>
>>
>>---
>>
>>Shouldn't 3.1.1 also mention the REVERSE_LSP Object. Something like...
>>
>>   For the single sided provisioning, the Traffic Engineering (TE)
>>   tunnel is configured only on one endpoint.  An LSP for this tunnel is
>>   initiated by the initiating endpoint with the (Extended) ASSOCIATION
>>   Object inserted in the Path message.  The other endpoint then creates
>>   the corresponding reverse TE tunnel and signals the reverse LSP in
>>   response using information from the REVERSE_LSP Object if present.
>
><RG> Yes, added.
>
>>
>>---
>>
>>3.1.2
>>
>>Pedantry, but...
>>
>>OLD
>>   For the double sided provisioning, two unidirectional TE tunnels are
>>   configured independently on both endpoints.
>>NEW
>>   For the double sided provisioning, two unidirectional TE tunnels are
>>   configured independently, one on each endpoint.
>>END
>
><RG> Added.=20
>
>>
>>---
>>
>>3.2
>>
>>   This section provides an overview of the association signaling
>>   methods for the bidirectional LSPs.
>>
>>Again, this is missing "associated"
>
><RG> Added.
>
>>
>>---
>>
>>3.2.1
>>
>>OLD
>>   LSP1 is then signaled with an (Extended) ASSOCIATION Object inserted
>>   in the Path message, in which the Association Type indicating single
>>   sided provisioning.
>>NEW
>>   LSP1 is then signaled with an (Extended) ASSOCIATION Object inserted
>>   in the Path message, in which the Association Type indicating single
>>   sided provisioning is included.
>>END
>
><RG> Fixed.
>
>>
>>---
>>
>>3.2.2
>>
>>OLD
>>   For the double sided provisioning model, both LSP1 and LSP2 are
>>   signaled independently with (Extended) ASSOCIATION Object inserted in
>>   the Path message, in which the Association Type indicating double
>>   sided provisioning.
>>NEW
>>   For the double sided provisioning model, both LSP1 and LSP2 are
>>   signaled independently with (Extended) ASSOCIATION Object inserted in
>>   the Path message, in which the Association Type indicating double
>>   sided provisioning is included.
>
><RG> Fixed.
>
>>
>>---
>>
>>3.2.2 needs to include some comment about how the two LSPs are selected
>>to be associated. I think this is simply "by management action applied
>>at both end points", although I wonder whether it is enough to apply the
>>action at just one end point because the association object will achieve
>>the desired result.
>>
>>Please think about this and add a note.
>
>
><RG> This is somewhat in Section 3.1.2.
><RG> We could add something like:
>The LSPs to be selected for association are provisioned by the management
>action applied at both endpoints.
>
>
>
>>
>>---
>>
>>Section 3.3.1 is fine as it is, but I think that it makes it look like
>>the REVERSE LSP object is only used for asymmetric b/w. Perhaps...
>>
>>OLD
>>   As
>>   described in this document, addition of the REVERSE_LSP Object also
>>   allows the initiating node to control the reverse LSP by including
>>   other existing objects in a REVERSE_LSP Object.
>>NEW
>>   As
>>   described in Section 4.4, addition of the REVERSE_LSP Object also
>>   allows the initiating node to control other aspects of the reverse
>>   LSP (such as its path) by including other subobjects in a REVERSE_LSP
>>   Object.
>>END
>
><RG> Fixed.
>
>>
>>---
>>
>>For clarity 3.4 needs to observe that multiple association objects may
>>be present in the signaling of a single LSP.
>
><RG> Adding following:
> An LSP MAY signal multiple (Extended) ASSOCIATION Objects with different
>Association Types.
>
>
>>
>>---
>>
>>4.2
>>
>>      The new Association Types are defined as follows (values are
>>      temporary early allocations as per RFC7120):
>>
>>Delete the bit in brackets, please, so that we don't accidentally find
>>it in the published RFC. Your message is already in 6.1 (which is good).
>
><RG> Fixed.
>
>>          =20
>>---
>>
>>4.4.1
>>
>>   Class_Num =3D 203 (of the form 11bbbbbb), C_Type =3D 1 (values are
>>   temporary early allocations as per RFC7120)
>>
>>Same thing. Please remove the bit about early allocation.
>>
>>(BTW, you have "of the form 11bbbbbb" twice in this section.
>
><RG> Fixe both.
>
>>
>>---
>>
>>4.4.2 or 5.2
>>
>>Maybe...
>>
>>   The REVERSE_LSP object MUST NOT be included in a REVERSE_LSP object.
>
><RG> Added in Section 5.2.
>
>>
>>---
>>
>>5.2
>>
>>   An
>>   egress node MUST tear down and reestablish a new reverse LSP when
>>   REVERSE_LSP Object is either added or removed in the received Path
>>   message.
>>
>>That's confusing!
>>- Why is modification of an existing LSP not allowed?
>>- Why does removal of the REVERSE_LSP object require tearing down and
>>  reestablishment since all that has happened is that the requirements
>>  for the reverse LSP have been relaxed?
>>- Why does addition of the REVERSE_LSP necessarily require tear down
>>  and reestablishment when the existing LSP might already satisfy the
>>  requirements?
>>- Is make-before-break used or is this assumed to be an out-of-service
>>  operation? If out-of-service you need to describe how that is
>>  achieved (e.g., using LI).
>
>
><RG> Understand and agree with above comments. There are various scenarios
>where change may lead to in-place modification, MBB or setup and teardown
>(which may depend on implementation).
>
><RG> How about something like following:
>An egress node MAY tear down and reestablish a new reverse LSP, or trigger
>re-optimization or in-place modification when
>   REVERSE_LSP Object is either added or removed in the received Path
>   message (which may depend on the local policy).
>
>
>>
>>---
>>
>>5.3 has
>>
>>   If REVERSE_LSP Object is not present in the received Path message of
>>   the LSP, the egress node SHOULD use the LSP properties from the
>>   received LSP Path message to signal the LSP in the reverse direction
>>   (which may depend on the local policy).
>>
>>This worries me. Do you mean that in the absence of a REVERSE_LSP object
>>containing an ERO, the reverse LSP MUST be co-routed with the forward
>>LSP?
>>
>


<RG2> Ack, Will address this comment.


>
>
>
>
>Many thanks Adrian for the great review.
>
>Regards,
>Rakesh
>
>
>>
>


From nobody Mon Feb  9 06:51:31 2015
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Subject: [Teas] Last Call: <draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-01.txt> (RSVP-TE Extensions for Associated Bidirectional LSPs) to Proposed Standard
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The IESG has received a request from the Traffic Engineering Architecture
and Signaling WG (teas) to consider the following document:
- 'RSVP-TE Extensions for Associated Bidirectional LSPs'
  <draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-01.txt> as Proposed
Standard

The IESG plans to make a decision in the next few weeks, and solicits
final comments on this action. Please send substantive comments to the
ietf@ietf.org mailing lists by 2015-02-23. Exceptionally, comments may be
sent to iesg@ietf.org instead. In either case, please retain the
beginning of the Subject line to allow automated sorting.

Abstract

   This document describes Resource reSerVation Protocol (RSVP)
   extensions to bind two point-to-point unidirectional Label Switched
   Paths (LSPs) into an associated bidirectional LSP.  The association
   is achieved by defining new Association Types for use in ASSOCIATION
   and in Extended ASSOCIATION Objects.  One of these types enables
   independent provisioning of the associated bidirectional LSPs on both
   sides, while the other enables single sided provisioning.  The
   REVERSE_LSP Object is also defined to enable a single endpoint to
   specify all the parameters of an associated LSP in the single sided
   provisioning case.


The file can be obtained via
http://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp/

IESG discussion can be tracked via
http://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp/ballot/


The following IPR Declarations may be related to this I-D:

   http://datatracker.ietf.org/ipr/2139/


From nobody Mon Feb  9 14:18:36 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: <draft-ietf-ccamp-gmpls-general-constraints-ospf-te.all@tools.ietf.org>
Date: Mon, 9 Feb 2015 21:53:48 -0000
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Subject: [Teas] AD review of draft-ietf-ccamp-gmpls-general-constraints-ospf-te
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Authors!

I have done my usual AD review of this document to prepare it for
IETF last call and IESG evaluation. It's in good shape and my comments
below are nearly completely editorial.

Please have a look and let me know if you disagree. Otherwise, post a
new revision and I'll take the document forward.

Thanks for the work,
Adrian

---

You need to split the Authors' Addresses sections into:
- Authors' Addresses reflecting those on the front page
- Contributors containing all the others

---

Section 1 has:

   The top-level TLV can take one of three values (1)
   Router Address [RFC3630], (2) Link [RFC3630], (3) Node Attribute
   defined in Section 2.

Shouldn't this be:

   The top-level TLV can take one of three values (1)
   Router Address [RFC3630], (2) Link [RFC3630], (3) Node Attribute 
   [RFC5786].

---

We need to do some work on the IANA stuff.

In Section 2, please replace

OLD
   Per [GEN-Encode], we have identified the following new Sub-TLVs to
   the Node Attribute TLV as defined in [RFC5786]. Detailed description
   for each newly defined Sub-TLV is provided in subsequent sections:

      Sub-TLV Type      Length         Name

      14 (Suggested)    variable       Connectivity Matrix
NEW
   Per [GEN-Encode], this document defines the Connectivity Matrix Sub-
   TLV of the Node Attribute TLV defined in [RFC5786].  The new Sub-TLV
   has Type TBD1 (to be assigned by IANA).
END


In Section 3, please replace

OLD
   Per [GEN-Encode], we add the following additional link sub-TLVs to
   the link TLV in this document.

      Sub-TLV Type      Length         Name

      26 (suggested)    variable       Port Label Restrictions
NEW
   Per [GEN-Encode], this document defines the Port Label Restrictions 
   Sub-TLV of the Link TLV defined in [RFC3630].   The new Sub-TLV has
   Type TBD2 (to be assigned by IANA).
END


In Section 7.1, please replace

OLD
   This document defines a new sub-TLV of the Node Attribute TLV (Value
   5). The assignment of the following new type in the "Types for sub-
   TLVs of TE Node Attribute TLV" portion of the "Open Shortest Path
   First (OSPF) Traffic Engineering TLVs" registry is needed:

   This document introduces the following sub-TLVs of Node Attribute
   TLV (Value 5):

      Type                                      sub-TLV

      14 (suggested, to be assigned by IANA)    Connectivity Matrix
NEW
   IANA maintains the "Open Shortest Path First (OSPF) Traffic
   Engineering TLVs" registry with a sub-registry called "Types for sub-
   TLVs of TE Node Attribute TLV".  IANA is requested to assign a new 
   code point as follows:

      Type   |  Sub-TLV                      |  Reference
      -------+-------------------------------+------------
      TBD1   |  Connectivity Matrix sub-TLV  |  [This.I-D]

END

In Section 7.2, please replace

OLD
   This document defines a new sub-TLV of the TE Link TLV (Value 2).
   The assignment of the following new type in the "Types for sub-TLVs
   of TE Link TLV" portion of the "Open Shortest Path First (OSPF)
   Traffic Engineering TLVs" registry is needed:

      Type                                      sub-TLV

      26 (suggested, to be assigned by IANA)    Port Label Restrictions
NEW
   IANA maintains the "Open Shortest Path First (OSPF) Traffic
   Engineering TLVs" registry with a sub-registry called "Types for sub-
   TLVs of TE Link TLV".  IANA is requested to assign a new code point
   as follows:

      Type   |  Sub-TLV                          |  Reference
      -------+-----------------------------------+------------
      TBD2   |  Port Label Restrictions sub-TLV  |  [This.I-D]
END

---

I think Section 6 should also reference 5250 since Opaque LSAs are,
themselves, an attack vector.

---

Did you consider including a short manageability section?

Are there any existing management tools that are impacted by the new
sub-TLVs?

What might a user expect to configure related to these sub-TLVs?

What might a user expect to be able to read from a device?


From nobody Tue Feb 10 04:43:15 2015
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Cc: stephane.litkowski@orange.com
Subject: [Teas] Fwd: [Rtg-yang-coord] Survey for YANG model design : routing protocols CLI implementation
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Fyi - note request for unicast responses...


--- Forwarded message ---
From: <stephane.litkowski@orange.com>
Date: February 10, 2015 7:27:07 AM
Subject: [Rtg-yang-coord] Survey for YANG model design : routing protocols 
CLI implementation
To: "ospf@ietf.org" <ospf@ietf.org>, "isis-wg@ietf.org list 
(isis-wg@ietf.org)" <isis-wg@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>, 
"idr@ietf.org" <idr@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
CC: "Rtg-yang-coord@ietf.org" <Rtg-yang-coord@ietf.org>

Hi Folks,

A lot of us are currently working on Yang model drafts. In the framework of 
routing protocols related drafts, we have some discussion regarding how to 
model the configuration of routing protocols and especially do it need to 
be routing-instance centric or protocol centric (see slides for quick 
explanation of the difference). This is a cross protocol discussion, as we 
would like to apply the same design to all.

In order to decide how to progress on this major design point, one point  
is to evaluate current implementations and how many are routing-instance 
centric and protocol centric. The famous implementations are well known, 
but we would like to have a more global view. This metric would be one 
among others.

In order to help us to do this inventory, could you please respond unicast 
to me, if you are an implementor and you have an implementation of a 
routing-protocol (ISIS,OSPF,RIP,BGP, PIM ... but also MPLS-TE, LDP, RSVP 
...) and in this case, what is your CLI flavor ?

Please use this sample format, so it would be easier for me to aggregate :
(If you own multiple implementations, you can fill multiple lines.)


Vendor

OS

Protocol Centric

VRF centric

Cisco

IOS/IOS-XE

X





Thanks for your help !


[Orange logo]<http://www.orange.com/>

Stephane Litkowski
Network Architect
Orange/SCE/EQUANT/IBNF/ENDD/NDE
Orange Expert Future Networks
phone: +33 2 23 28 49 83 
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<div style="color: black;">
<div style="color: black;">
<p style="margin: 0 0 1em 0; color: black;">Fyi - note request for unicast
responses... </p>
</div>
<div style="color: black;">
<table
style="color: black; font-size: 10pt; font-family: Arial, sans-serif;"
border="0" cellspacing="0" cellpadding="0">
<tr><td  colspan="2">--- Forwarded message ---</td></tr>
<tr><td><b>From:&nbsp;</b></td><td>&lt;stephane.litkowski@orange.com&gt;</td></tr>
<tr><td><b>Date:&nbsp;</b></td><td>February 10, 2015 7:27:07 AM</td></tr>
<tr><td><b>Subject:&nbsp;</b></td><td>[Rtg-yang-coord] Survey for YANG
model design : routing protocols CLI implementation</td></tr>
<tr><td><b>To:&nbsp;</b></td><td>&quot;ospf@ietf.org&quot;
&lt;ospf@ietf.org&gt;, &quot;isis-wg@ietf.org list (isis-wg@ietf.org)&quot;
&lt;isis-wg@ietf.org&gt;, &quot;mpls@ietf.org&quot; &lt;mpls@ietf.org&gt;,
&quot;idr@ietf.org&quot; &lt;idr@ietf.org&gt;, &quot;rtgwg@ietf.org&quot;
&lt;rtgwg@ietf.org&gt;</td></tr>
<tr><td><b>CC:&nbsp;</b></td><td>&quot;Rtg-yang-coord@ietf.org&quot;
&lt;Rtg-yang-coord@ietf.org&gt;</td></tr>
</table>
<br>
<div class="WordSection1">
<p class="MsoNormal">Hi Folks,<o:p></o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal">A lot of us are currently working on Yang model
drafts. In the framework of routing protocols related drafts, we have some
discussion regarding how to model the configuration of routing protocols
and especially do it need to be routing-instance
 centric or protocol centric (see slides for quick explanation of the
difference). This is a cross protocol discussion, as we would like to apply
the same design to all.<o:p></o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal">In order to decide how to progress on this major
design point, one point &nbsp;is to evaluate current implementations and
how many are routing-instance centric and protocol centric. The famous
implementations are well known, but we would like
 to have a more global view. This metric would be one among
others.<o:p></o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal">In order to help us to do this inventory, could you
please respond unicast to me, if you are an implementor and you have an
implementation of a routing-protocol (ISIS,OSPF,RIP,BGP, PIM &#8230; but
also MPLS-TE, LDP, RSVP &#8230;) and in this case,
 what is your CLI flavor ? <o:p></o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal">Please use this sample format, so it would be easier
for me to aggregate :<o:p></o:p></p>
<p class="MsoNormal">(If you own multiple implementations, you can fill
multiple lines.)<o:p></o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0"
width="348" style="width:261.0pt;margin-left:-1.15pt;border-collapse:collapse">
<tbody>
<tr style="height:15.0pt">
<td width="79" nowrap="" valign="bottom"
style="width:59.0pt;border:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.0pt">
<p class="MsoNormal"><b><span
style="color:black">Vendor<o:p></o:p></span></b></p>
</td>
<td width="75" nowrap="" valign="bottom"
style="width:56.0pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:15.0pt">
<p class="MsoNormal"><b><span style="color:black">OS<o:p></o:p></span></b></p>
</td>
<td width="119" nowrap="" valign="bottom"
style="width:89.0pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:15.0pt">
<p class="MsoNormal" align="center" style="text-align:center"><b><span
style="color:black">Protocol Centric<o:p></o:p></span></b></p>
</td>
<td width="76" nowrap="" valign="bottom"
style="width:57.0pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:15.0pt">
<p class="MsoNormal" align="center" style="text-align:center"><b><span
style="color:black">VRF centric<o:p></o:p></span></b></p>
</td>
</tr>
<tr style="height:15.0pt">
<td width="79" nowrap="" valign="bottom"
style="width:59.0pt;border:solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:15.0pt">
<p class="MsoNormal"><span style="color:black">Cisco<o:p></o:p></span></p>
</td>
<td width="75" nowrap="" valign="bottom"
style="width:56.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.0pt">
<p class="MsoNormal"><span style="color:black">IOS/IOS-XE<o:p></o:p></span></p>
</td>
<td width="119" nowrap="" valign="bottom"
style="width:89.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.0pt">
<p class="MsoNormal" align="center" style="text-align:center"><span
style="color:black">X<o:p></o:p></span></p>
</td>
<td width="76" nowrap="" valign="bottom"
style="width:57.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.0pt">
<p class="MsoNormal" align="center" style="text-align:center"><span
style="color:black">&nbsp;<o:p></o:p></span></p>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal">Thanks for your help !<o:p></o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal"><a href="http://www.orange.com/"><span
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style="font-size:12.0pt;font-family:&quot;Times New Roman&quot;,&quot;serif&quot;">&nbsp;<o:p></o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Stephane
Litkowski
</span></b><span
style="font-size:12.0pt;font-family:&quot;Times New Roman&quot;,&quot;serif&quot;"><br>
</span><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Network
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style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Orange
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<PRE>_________________________________________________________________________________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations
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Orange decline toute responsabilite si ce message a ete altere, deforme ou
falsifie. Merci.

This message and its attachments may contain confidential or privileged
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If you have received this email in error, please notify the sender and
delete this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been
modified, changed or falsified.
Thank you.
</PRE>
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------------14b7383aa6910ac27e942f69058--


From nobody Tue Feb 10 08:22:59 2015
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From: Leeyoung <leeyoung@huawei.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "draft-ietf-ccamp-gmpls-general-constraints-ospf-te.all@tools.ietf.org" <draft-ietf-ccamp-gmpls-general-constraints-ospf-te.all@tools.ietf.org>
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Subject: Re: [Teas] [CCAMP] AD review of draft-ietf-ccamp-gmpls-general-constraints-ospf-te
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Hi Adrian,

Here's my comment, please see inline. =20

Thanks.
Young

-----Original Message-----
From: CCAMP [mailto:ccamp-bounces@ietf.org] On Behalf Of Adrian Farrel
Sent: Monday, February 09, 2015 3:54 PM
To: draft-ietf-ccamp-gmpls-general-constraints-ospf-te.all@tools.ietf.org
Cc: Alvaro Retana; ccamp@ietf.org; teas@ietf.org
Subject: [CCAMP] AD review of draft-ietf-ccamp-gmpls-general-constraints-os=
pf-te

Authors!

I have done my usual AD review of this document to prepare it for
IETF last call and IESG evaluation. It's in good shape and my comments
below are nearly completely editorial.

Please have a look and let me know if you disagree. Otherwise, post a
new revision and I'll take the document forward.

Thanks for the work,
Adrian

---

You need to split the Authors' Addresses sections into:
- Authors' Addresses reflecting those on the front page
- Contributors containing all the others


YOUNG>> OK.=20
---

Section 1 has:

   The top-level TLV can take one of three values (1)
   Router Address [RFC3630], (2) Link [RFC3630], (3) Node Attribute
   defined in Section 2.

Shouldn't this be:

   The top-level TLV can take one of three values (1)
   Router Address [RFC3630], (2) Link [RFC3630], (3) Node Attribute=20
   [RFC5786].

YOUNG>> OK.
---

We need to do some work on the IANA stuff.

In Section 2, please replace

OLD
   Per [GEN-Encode], we have identified the following new Sub-TLVs to
   the Node Attribute TLV as defined in [RFC5786]. Detailed description
   for each newly defined Sub-TLV is provided in subsequent sections:

      Sub-TLV Type      Length         Name

      14 (Suggested)    variable       Connectivity Matrix
NEW
   Per [GEN-Encode], this document defines the Connectivity Matrix Sub-
   TLV of the Node Attribute TLV defined in [RFC5786].  The new Sub-TLV
   has Type TBD1 (to be assigned by IANA).
END


In Section 3, please replace

OLD
   Per [GEN-Encode], we add the following additional link sub-TLVs to
   the link TLV in this document.

      Sub-TLV Type      Length         Name

      26 (suggested)    variable       Port Label Restrictions
NEW
   Per [GEN-Encode], this document defines the Port Label Restrictions=20
   Sub-TLV of the Link TLV defined in [RFC3630].   The new Sub-TLV has
   Type TBD2 (to be assigned by IANA).
END


In Section 7.1, please replace

OLD
   This document defines a new sub-TLV of the Node Attribute TLV (Value
   5). The assignment of the following new type in the "Types for sub-
   TLVs of TE Node Attribute TLV" portion of the "Open Shortest Path
   First (OSPF) Traffic Engineering TLVs" registry is needed:

   This document introduces the following sub-TLVs of Node Attribute
   TLV (Value 5):

      Type                                      sub-TLV

      14 (suggested, to be assigned by IANA)    Connectivity Matrix
NEW
   IANA maintains the "Open Shortest Path First (OSPF) Traffic
   Engineering TLVs" registry with a sub-registry called "Types for sub-
   TLVs of TE Node Attribute TLV".  IANA is requested to assign a new=20
   code point as follows:

      Type   |  Sub-TLV                      |  Reference
      -------+-------------------------------+------------
      TBD1   |  Connectivity Matrix sub-TLV  |  [This.I-D]

END

In Section 7.2, please replace

OLD
   This document defines a new sub-TLV of the TE Link TLV (Value 2).
   The assignment of the following new type in the "Types for sub-TLVs
   of TE Link TLV" portion of the "Open Shortest Path First (OSPF)
   Traffic Engineering TLVs" registry is needed:

      Type                                      sub-TLV

      26 (suggested, to be assigned by IANA)    Port Label Restrictions
NEW
   IANA maintains the "Open Shortest Path First (OSPF) Traffic
   Engineering TLVs" registry with a sub-registry called "Types for sub-
   TLVs of TE Link TLV".  IANA is requested to assign a new code point
   as follows:

      Type   |  Sub-TLV                          |  Reference
      -------+-----------------------------------+------------
      TBD2   |  Port Label Restrictions sub-TLV  |  [This.I-D]
END


YOUNG>> OK. Thanks.=20
---

I think Section 6 should also reference 5250 since Opaque LSAs are,
themselves, an attack vector.

YOUNG>> OK.=20
---

Did you consider including a short manageability section?

YOUNG>> No, as you see the content. Do you have any suggestion in mind?=20

Are there any existing management tools that are impacted by the new
sub-TLVs?

YOUNG>> I don't think so.=20

What might a user expect to configure related to these sub-TLVs?

What might a user expect to be able to read from a device?

YOUNG>> These questions sound like either a mib or yang question. I think t=
he TLVs defined in this document can be configured/read by EMS or NMS or ot=
her system.=20
Shall a companion document (mib or yang, which by the way I am working on W=
SON Yang model on these TLVs included) if you will address these questions?=
=20
_______________________________________________
CCAMP mailing list
CCAMP@ietf.org
https://www.ietf.org/mailman/listinfo/ccamp


From nobody Wed Feb 11 04:57:12 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Leeyoung'" <leeyoung@huawei.com>, <draft-ietf-ccamp-gmpls-general-constraints-ospf-te.all@tools.ietf.org>
Date: Wed, 11 Feb 2015 12:56:55 -0000
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Thanks Young,

Just the last point to be covered...

> Did you consider including a short manageability section?
> 
> YOUNG>> No, as you see the content. Do you have any suggestion in mind?
> 
> Are there any existing management tools that are impacted by the new
> sub-TLVs?
> 
> YOUNG>> I don't think so.
> 
> What might a user expect to configure related to these sub-TLVs?
> 
> What might a user expect to be able to read from a device?
> 
> YOUNG>> These questions sound like either a mib or yang question. I think the
> TLVs defined in this document can be configured/read by EMS or NMS or other
> system.
> Shall a companion document (mib or yang, which by the way I am working on
> WSON Yang model on these TLVs included) if you will address these questions?

So perhaps something like...

x. Manageability Considerations

   No existing management tools handle the additional TE parameters as
   defined in this document and distributed in OSPF-TE.  The existing 
   MIB module contained in [RFC6825] allows the TE information 
   distributed by OSPF-TE to be read from a network node: this MIB 
   module could be augmented (possibly by a sparse augmentation) to
   report this new information.

   The current environment in the IETF favors NETCONF [RFC6241] and YANG
   [RFC6020] over SNMP and MIB modules.  Work is in progress in the TEAS
   working group to develop a YANG module to represent the generic TE 
   information that may be present in a Traffic Engineering Database 
   (TED).  This model may be extended to handle the additional 
   information described in this document to allow that information to 
   be read from network devices or exchanged between consumers of the
   TED.  Furthermore, links state export using BGP (BGP-LS) [draft-ietf-
   idr-ls-distribution] enables the export of TE information from a 
   network using BGP.  Work could realistically be done to extend BGP-LS
   to also carry the information defined in this document.

   It is not envisaged that the extensions defined in this document will
   place substantial additional requirements on Operations, Management,
   and Administration (OAM) mechanisms currently used to diagnose and 
   debug OSPF systems.  However, tools that examine the contents of
   opaque LSAs will need to be enhanced to handle these new sub-TLVs.


Edit this to read the way you want it to, and post a revision.

Thanks,
Adrian



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Cc: stephane.litkowski@orange.com
Subject: [Teas] Fwd: RE: [mpls] Survey for YANG model design : routing protocols CLI implementation
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            <td>RE: [mpls] Survey for YANG model design : routing
              protocols CLI implementation</td>
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            <td>Wed, 11 Feb 2015 08:43:00 +0000</td>
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            <td><a class="moz-txt-link-abbreviated" href="mailto:isis-wg@ietf.org">isis-wg@ietf.org</a> list (<a class="moz-txt-link-abbreviated" href="mailto:isis-wg@ietf.org">isis-wg@ietf.org</a>)
              <a class="moz-txt-link-rfc2396E" href="mailto:isis-wg@ietf.org">&lt;isis-wg@ietf.org&gt;</a>, <a class="moz-txt-link-abbreviated" href="mailto:idr@ietf.org">idr@ietf.org</a>
              <a class="moz-txt-link-rfc2396E" href="mailto:idr@ietf.org">&lt;idr@ietf.org&gt;</a>, <a class="moz-txt-link-abbreviated" href="mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>
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        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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            <p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span
style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">
                mpls [<a moz-do-not-send="true"
                  href="mailto:mpls-bounces@ietf.org">mailto:mpls-bounces@ietf.org</a>]
                <b>On Behalf Of </b><a moz-do-not-send="true"
                  href="mailto:stephane.litkowski@orange.com">stephane.litkowski@orange.com</a><br>
                <b>Sent:</b> Tuesday, February 10, 2015 13:26<br>
                <b>To:</b> <a moz-do-not-send="true"
                  href="mailto:ospf@ietf.org">ospf@ietf.org</a>; <a
                  moz-do-not-send="true" href="mailto:isis-wg@ietf.org">
                  isis-wg@ietf.org</a> list (<a moz-do-not-send="true"
                  href="mailto:isis-wg@ietf.org">isis-wg@ietf.org</a>);
                <a moz-do-not-send="true" href="mailto:mpls@ietf.org">mpls@ietf.org</a>;
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                <b>Cc:</b> <a moz-do-not-send="true"
                  href="mailto:Rtg-yang-coord@ietf.org">Rtg-yang-coord@ietf.org</a><br>
                <b>Subject:</b> [mpls] Survey for YANG model design :
                routing protocols CLI implementation<br>
                <b>Importance:</b> High<o:p></o:p></span></p>
          </div>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Hi Folks,<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">A lot of us are currently working on Yang
          model drafts. In the framework of routing protocols related
          drafts, we have some discussion regarding how to model the
          configuration of routing protocols and
          <span style="color:#1F497D"><o:p></o:p></span></p>
        <p class="MsoNormal">especially do it need to be
          routing-instance centric or protocol centric<span
            style="color:#1F497D">.
          </span>This is a cross protocol discussion, as we would like
          to apply the same design to all.<o:p></o:p></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">Example of
            routing-instance centric CLI : (Typically Juniper, ALU)<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">routing-instance
            R1 {<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            protocol isis {};<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            protocol ospf {};<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            protocol ldp {};<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">}<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">routing-instance
            R2 {<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            protocol isis {};<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            protocol ospf {};<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            protocol ldp {};<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">}<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">Example of
            protocol centric CLI : (Typically CISCO)<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">protocol isis {<o:p></o:p></span></p>
        <p class="MsoNormal" style="text-indent:.5in"><span
            style="color:#1F497D">routing-instance R1 {}<o:p></o:p></span></p>
        <p class="MsoNormal" style="text-indent:.5in"><span
            style="color:#1F497D">routing-instance R2 {}<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">}<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">protocol ospf {<o:p></o:p></span></p>
        <p class="MsoNormal" style="text-indent:.5in"><span
            style="color:#1F497D">routing-instance R1 {}<o:p></o:p></span></p>
        <p class="MsoNormal" style="text-indent:.5in"><span
            style="color:#1F497D">routing-instance R2 {}<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">}<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">In order to decide how to progress on this
          major design point, one point  is to evaluate current
          implementations and how many are routing-instance centric and
          protocol centric. The famous implementations are well known,
          but we would like to have a more global view. This metric
          would be one among others.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">In order to help us to do this inventory,
          could you please respond unicast to me, if you are an
          implementor and you have an implementation of a
          routing-protocol (ISIS,OSPF,RIP,BGP, PIM … but also MPLS-TE,
          LDP, RSVP …) and in this case, what is your CLI flavor ? <o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Please use this sample format, so it would
          be easier for me to aggregate :<o:p></o:p></p>
        <p class="MsoNormal">(If you own multiple implementations, you
          can fill multiple lines.)<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <table class="MsoNormalTable"
          style="width:261.0pt;margin-left:-1.15pt;border-collapse:collapse"
          border="0" cellpadding="0" cellspacing="0" width="348">
          <tbody>
            <tr style="height:15.0pt">
              <td style="width:59.0pt;border:solid windowtext
                1.0pt;padding:0in 5.4pt 0in 5.4pt;height:15.0pt"
                nowrap="nowrap" valign="bottom" width="79">
                <p class="MsoNormal"><b><span style="color:black">Vendor<o:p></o:p></span></b></p>
              </td>
              <td style="width:56.0pt;border:solid windowtext
                1.0pt;border-left:none;padding:0in 5.4pt 0in
                5.4pt;height:15.0pt" nowrap="nowrap" valign="bottom"
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              </td>
              <td style="width:89.0pt;border:solid windowtext
                1.0pt;border-left:none;padding:0in 5.4pt 0in
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From nobody Wed Feb 11 12:04:55 2015
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From: Leeyoung <leeyoung@huawei.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "draft-ietf-ccamp-gmpls-general-constraints-ospf-te.all@tools.ietf.org" <draft-ietf-ccamp-gmpls-general-constraints-ospf-te.all@tools.ietf.org>
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Subject: Re: [Teas] [CCAMP] AD review of draft-ietf-ccamp-gmpls-general-constraints-ospf-te
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Thanks, Adrian for the suggested text. A new revision has been published.=20

http://www.ietf.org/internet-drafts/draft-ietf-ccamp-gmpls-general-constrai=
nts-ospf-te-09.txt


Best Regards,
Young

-----Original Message-----
From: Adrian Farrel [mailto:adrian@olddog.co.uk]=20
Sent: Wednesday, February 11, 2015 6:57 AM
To: Leeyoung; draft-ietf-ccamp-gmpls-general-constraints-ospf-te.all@tools.=
ietf.org
Cc: 'Alvaro Retana'; ccamp@ietf.org; teas@ietf.org
Subject: RE: [CCAMP] AD review of draft-ietf-ccamp-gmpls-general-constraint=
s-ospf-te

Thanks Young,

Just the last point to be covered...

> Did you consider including a short manageability section?
>=20
> YOUNG>> No, as you see the content. Do you have any suggestion in mind?
>=20
> Are there any existing management tools that are impacted by the new
> sub-TLVs?
>=20
> YOUNG>> I don't think so.
>=20
> What might a user expect to configure related to these sub-TLVs?
>=20
> What might a user expect to be able to read from a device?
>=20
> YOUNG>> These questions sound like either a mib or yang question. I think=
 the
> TLVs defined in this document can be configured/read by EMS or NMS or oth=
er
> system.
> Shall a companion document (mib or yang, which by the way I am working on
> WSON Yang model on these TLVs included) if you will address these questio=
ns?

So perhaps something like...

x. Manageability Considerations

   No existing management tools handle the additional TE parameters as
   defined in this document and distributed in OSPF-TE.  The existing=20
   MIB module contained in [RFC6825] allows the TE information=20
   distributed by OSPF-TE to be read from a network node: this MIB=20
   module could be augmented (possibly by a sparse augmentation) to
   report this new information.

   The current environment in the IETF favors NETCONF [RFC6241] and YANG
   [RFC6020] over SNMP and MIB modules.  Work is in progress in the TEAS
   working group to develop a YANG module to represent the generic TE=20
   information that may be present in a Traffic Engineering Database=20
   (TED).  This model may be extended to handle the additional=20
   information described in this document to allow that information to=20
   be read from network devices or exchanged between consumers of the
   TED.  Furthermore, links state export using BGP (BGP-LS) [draft-ietf-
   idr-ls-distribution] enables the export of TE information from a=20
   network using BGP.  Work could realistically be done to extend BGP-LS
   to also carry the information defined in this document.

   It is not envisaged that the extensions defined in this document will
   place substantial additional requirements on Operations, Management,
   and Administration (OAM) mechanisms currently used to diagnose and=20
   debug OSPF systems.  However, tools that examine the contents of
   opaque LSAs will need to be enhanced to handle these new sub-TLVs.


Edit this to read the way you want it to, and post a revision.

Thanks,
Adrian



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[Blind copying TEAS - please continue the discussion on the SUPA list]

I don't want to say "do it my way", but on the subject of abstraction =
and virtualisation, I hope you will look at =
http://datatracker.ietf.org/doc/draft-ietf-teas-interconnected-te-info-ex=
change/

The topic of aggregation, abstraction, virtualisation, network layering, =
and so forth has been the subject of almost continual work in the =
routing area for the last 15 years. So I don't think it fair to say =
"This working group introduces...."

Juergen is right that "policy" is an important input to the automation =
of abstraction, and the interested people may be right that that policy =
needs to have a configuration method. I am not completely convinced that =
this is critical for standardisation because the point at which =
abstraction is achieved is likely to be a single point of "topology =
export" from a network and so the configuration is applied at that point =
and not at a variety of routers.

If (and this is not certain long-term) export of virtualised topology is =
via BGP-LS (which is how a number of implementations have done it) then =
policy is, of course, easily imposed via BGP export policies.

Thanks,
Adrian

> > This working group introduces the concepts of multi-level (multiple
> > levels of abstraction) and multi-technology (e.g., IP, VPNs, MPLS)
> > network abstractions to address the current separation between
> > development and deployment operations.
>=20
> Abstraction simply means you leave out details. Consider a customer
> using servers located on a varying number of nodes in different data
> centers and the service request is to have protected connectivity
> between the nodes in the different data centers. The connectivity
> needs to have certain properties in terms of throughput, latency,
> availability, ...
>=20
> This service model is too abstract to implement it directly by an
> automated system. A network operator who wants to provide the service
> requested by the customer has to map things to the infrastructure.
> Policy-driven means that the mapping from the rather abstract service
> to the network infrastructure is policy driven, e.g. by using policy
> rules. This allows, for example, the operator to route traffic between
> data centers different depending on time of day or the current
> utilization of links etc.


From nobody Fri Feb 13 07:36:37 2015
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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 Traffic Engineering Architecture and Signaling Working Group of the IETF.

        Title           : RSVP-TE Extensions for Associated Bidirectional LSPs
        Authors         : Fei Zhang
                          Ruiquan Jing
                          Rakesh Gandhi
	Filename        : draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-02.txt
	Pages           : 20
	Date            : 2015-02-13

Abstract:
   This document describes Resource reSerVation Protocol (RSVP)
   extensions to bind two point-to-point unidirectional Label Switched
   Paths (LSPs) into an associated bidirectional LSP.  The association
   is achieved by defining new Association Types for use in ASSOCIATION
   and in Extended ASSOCIATION Objects.  One of these types enables
   independent provisioning of the associated bidirectional LSPs on both
   sides, while the other enables single sided provisioning.  The
   REVERSE_LSP Object is also defined to enable a single endpoint to
   specify all the parameters of an associated LSP in the single sided
   provisioning case.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-02

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-02


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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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Traffic Engineering Architecture and Signaling Working Group of the IETF.

        Title           : RSVP-TE Extensions for Associated Bidirectional LSPs
        Authors         : Fei Zhang
                          Ruiquan Jing
                          Rakesh Gandhi
	Filename        : draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-03.txt
	Pages           : 20
	Date            : 2015-02-14

Abstract:
   This document describes Resource reSerVation Protocol (RSVP)
   extensions to bind two point-to-point unidirectional Label Switched
   Paths (LSPs) into an associated bidirectional LSP.  The association
   is achieved by defining new Association Types for use in ASSOCIATION
   and in Extended ASSOCIATION Objects.  One of these types enables
   independent provisioning of the associated bidirectional LSPs on both
   sides, while the other enables single sided provisioning.  The
   REVERSE_LSP Object is also defined to enable a single endpoint to
   specify all the parameters of an associated LSP in the single sided
   provisioning case.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-03

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-03


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 Sat Feb 14 08:05:33 2015
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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: "teas@ietf.org" <teas@ietf.org>
Thread-Topic: [Teas] I-D Action: draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-03.txt
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Cc: Adrian Farrel <adrian@olddog.co.uk>, Lou Berger <lberger@labn.net>
Subject: Re: [Teas] I-D Action: draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-03.txt
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Hi WG,

This revision clarifies the handling when a subobject is not present in
the REVERSE_LSP object in Section 5.3. This addresses a comment received
from Lou in response to the review by Adrian.

There is one outstanding comment for which I will start a new email thread.

Welcome your comments and suggestions on the changes.

thanks,
Rakesh


On 2015-02-14 10:55 AM, "internet-drafts@ietf.org"
<internet-drafts@ietf.org> wrote:

>
>A New Internet-Draft is available from the on-line Internet-Drafts
>directories.
> This draft is a work item of the Traffic Engineering Architecture and
>Signaling Working Group of the IETF.
>
>        Title           : RSVP-TE Extensions for Associated Bidirectional
>LSPs
>        Authors         : Fei Zhang
>                          Ruiquan Jing
>                          Rakesh Gandhi
>	Filename        :
>draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-03.txt
>	Pages           : 20
>	Date            : 2015-02-14
>
>Abstract:
>   This document describes Resource reSerVation Protocol (RSVP)
>   extensions to bind two point-to-point unidirectional Label Switched
>   Paths (LSPs) into an associated bidirectional LSP.  The association
>   is achieved by defining new Association Types for use in ASSOCIATION
>   and in Extended ASSOCIATION Objects.  One of these types enables
>   independent provisioning of the associated bidirectional LSPs on both
>   sides, while the other enables single sided provisioning.  The
>   REVERSE_LSP Object is also defined to enable a single endpoint to
>   specify all the parameters of an associated LSP in the single sided
>   provisioning case.
>
>
>The IETF datatracker status page for this draft is:
>https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associ
>ated-lsp/
>
>There's also a htmlized version available at:
>http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-l
>sp-03
>
>A diff from the previous version is available at:
>http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-teas-mpls-tp-rsvpte-ext-asso=
ci
>ated-lsp-03
>
>
>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/
>
>_______________________________________________
>Teas mailing list
>Teas@ietf.org
>https://www.ietf.org/mailman/listinfo/teas


From nobody Sat Feb 14 08:38:55 2015
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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: "teas@ietf.org" <teas@ietf.org>
Thread-Topic: A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Date: Sat, 14 Feb 2015 16:38:49 +0000
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Subject: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Hi WG,

Seeking input on the following clarification.


Original text in the draft for the single sided association LSP setup:
----------------------------------------------------------------------
   If REVERSE_LSP Object is not present in the received Path message of
the LSP, the egress node SHOULD use the LSP properties from the
   received LSP Path message to signal the LSP in the reverse direction
(which may depend on the local policy).


Issue with this text:
---------------------
Let's say, an ingress node signals the forward LSP with single sided
association type but without REVERSE_LSP object.
An egress node creates a reverse LSP using the objects from the Path
message of the forward LSP.
At the ingress node, this reverse LSP can in turn trigger to create
another reverse (well forward) LSP as a response.


Clarification:
--------------
Use the presence of REVERSE_LSP Object in the Path message of the forward
LSP as a trigger to create a reverse LSP on the egress node.
Egress node does not add it in the reverse LSP, so the ingress does not
trigger another reverse (well forward) LSP since REVERSE_LSP Object is not
present.


Welcome your inputs.

Thanks,
Rakesh




>The IETF datatracker status page for this draft is:
>https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associ
>ated-lsp/
>
>There's also a htmlized version available at:
>http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-l
>sp-03


From nobody Tue Feb 17 18:09:25 2015
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Date: Tue, 17 Feb 2015 21:09:04 -0500
From: Lou Berger <lberger@labn.net>
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Cc: "Rakesh Gandhi \(rgandhi\)" <rgandhi@cisco.com>
Subject: Re: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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All,

I think we *really* need some input here from the WG.  So let me try to
summarize the situation:

The problem:
As part of flushing out details that Adrian correctly pointed out were
underspecified, we noted that when the REVERSE_LSP Object is not present
there is no way for a node receiving a single sided type association to
know if it is really the triggering node and to not initiate a new
reverse LSP.=20

The fix:
There needs to be something in the Path message of a single sided type
association to disambiguate the forward and reverse LSP.=20

Some options:
a) Always require a  REVERSE_LSP Object in the forward LSP
b) use a different association types in forward and reverse directions,
and introduce type-specific matching rules
c) add a bit somewhere, e.g., in LSP ATTRIBUTES
d) ???

The proposal in Rakesh's mail is to go with option (a), i.e., a=20
REVERSE_LSP Object MUST be present in the Path message of the forward LSP=
=2E

To me this seems like a reasonable and safe change, and was even
discussed at some point.

Are there any objections?=20

Are there any implementations that will be negatively impacted by this
change?  (And if so, what option do you prefer.)

Note the draft will need to be updated to reflect the outcome of this
discussion at which time the WG will again be asked to comment on the
changes.

Thanks,
Lou (as Shepherd and co-Chair)

On 2/14/2015 11:38 AM, Rakesh Gandhi (rgandhi) wrote:
> Hi WG,
>
> Seeking input on the following clarification.
>
>
> Original text in the draft for the single sided association LSP setup:
> ----------------------------------------------------------------------
>    If REVERSE_LSP Object is not present in the received Path message of=

> the LSP, the egress node SHOULD use the LSP properties from the
>    received LSP Path message to signal the LSP in the reverse direction=

> (which may depend on the local policy).
>
>
> Issue with this text:
> ---------------------
> Let's say, an ingress node signals the forward LSP with single sided
> association type but without REVERSE_LSP object.
> An egress node creates a reverse LSP using the objects from the Path
> message of the forward LSP.
> At the ingress node, this reverse LSP can in turn trigger to create
> another reverse (well forward) LSP as a response.
>
>
> Clarification:
> --------------
> Use the presence of REVERSE_LSP Object in the Path message of the forwa=
rd
> LSP as a trigger to create a reverse LSP on the egress node.
> Egress node does not add it in the reverse LSP, so the ingress does not=

> trigger another reverse (well forward) LSP since REVERSE_LSP Object is =
not
> present.
>
>
> Welcome your inputs.
>
> Thanks,
> Rakesh
>
>
>
>
>> The IETF datatracker status page for this draft is:
>> https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-as=
soci
>> ated-lsp/
>>
>> There's also a htmlized version available at:
>> http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associat=
ed-l
>> sp-03
> _______________________________________________
> Teas mailing list
> Teas@ietf.org
> https://www.ietf.org/mailman/listinfo/teas
>




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Date: Thu, 19 Feb 2015 17:21:14 +0800
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To: teas <teas@ietf.org>, draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp <draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp@tools.ietf.org>
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charse=
t=3Dutf-8"><style>body { line-height: 1.5; }body { font-size: 10.5pt; font=
-family: 'Times New Roman'; color: rgb(0, 0, 0); line-height: 1.5; }</styl=
e></head><body>=0A<div><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"=
><span></span></font><div style=3D"line-height: normal;"><font face=3D"=E5=
=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Hello</font></div><div style=3D"line-he=
ight: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">&nbsp;<=
/font></div><div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=
=BD=AF=E9=9B=85=E9=BB=91">I have been selected as the Routing Directorate =
reviewer for this draft.</font></div><div style=3D"line-height: normal;"><=
font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">The Routing Directorate=
 seeks to review all routing or routing-related</font></div><div style=3D"=
line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">=
drafts as they pass through IETF last call and IESG review, and</font></di=
v><div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=
=9B=85=E9=BB=91">sometimes on special request. The purpose of the review i=
s to provide</font></div><div style=3D"line-height: normal;"><font face=3D=
"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">assistance to the Routing ADs. For =
more information about the Routing</font></div><div style=3D"line-height: =
normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Directorate, =
please see =E2=80=8B</font></div><div style=3D"line-height: normal;"><a hr=
ef=3D"http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir" style=3D"text-=
decoration: none !important;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91">http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir</font></a></d=
iv><div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=
=9B=85=E9=BB=91">&nbsp;</font></div><div style=3D"line-height: normal;"><f=
ont face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Although these comments =
are primarily for the use of the Routing ADs, it</font></div><div style=3D=
"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"=
>would be helpful if you could consider them along with any other IETF</fo=
nt></div><div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=
=AF=E9=9B=85=E9=BB=91">Last Call comments that you receive, and strive to =
resolve them through</font></div><div style=3D"line-height: normal;"><font=
 face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">discussion or by updating t=
he draft.</font></div><div style=3D"line-height: normal;"><font face=3D"=
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">&nbsp;</font></div><div style=3D"lin=
e-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Doc=
ument:&nbsp;<span style=3D"background-color: rgba(0, 0, 0, 0); line-height=
: 1.5;">draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-02</span></font>=
</div><div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91">Reviewer: Lizhong Jin</font></div><div style=3D"line-h=
eight: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Review=
 Date: 19 February 2015</font></div><div style=3D"line-height: normal;"><f=
ont face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">IETF LC End Date: N/A</f=
ont></div><div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=
=BD=AF=E9=9B=85=E9=BB=91">Intended Status: Standard Track</font></div><div=
 style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=
=E9=BB=91">&nbsp;</font></div><div style=3D"line-height: normal;"><font fa=
ce=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Summary:</font></div><div styl=
e=3D"line-height: normal;"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91; font-size: 10.5pt; background-color: window;">The docu=
ment is basically ready for publication. I found some minor&nbsp;</span><s=
pan style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; font-size:=
 10.5pt; background-color: window;">issues, and hope</span></div><div styl=
e=3D"line-height: normal;"><span style=3D"background-color: window;"><font=
 face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">to see the clarification.</=
font></span></div></div><div style=3D"line-height: normal;"><span style=3D=
"background-color: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91"><br></font></span></div><div style=3D"line-height: normal;"><span =
style=3D"background-color: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91">Commnets:</font></span></div><div style=3D"line-height: norm=
al;"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91;">I =
paticipate the initial discussion of this draft. I am lucky to review&nbsp=
;</span><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; =
font-size: 10.5pt; background-color: window;">it again. Overall, the<br>pr=
ocessing rule of independent provisioning hope to be explicitly&nbsp;</spa=
n><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; font-s=
ize: 10.5pt; background-color: window;">described.&nbsp;</span></div><div =
style=3D"line-height: normal;"><span style=3D"font-family: =E5=BE=AE=E8=BD=
=AF=E9=9B=85=E9=BB=91; font-size: 10.5pt; background-color: window;">No ma=
jor issues, some minor issues need to be clarified.</span></div><div style=
=3D"line-height: normal;"><span style=3D"background-color: window;"><font =
face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br></font></span></div><div=
 style=3D"line-height: normal;"><span style=3D"background-color: window;">=
<font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Major issues: No</font=
></span></div><div style=3D"line-height: normal;"><span style=3D"backgroun=
d-color: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br>=
</font></span></div><div style=3D"line-height: normal;"><span style=3D"bac=
kground-color: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91=
">Minor issues:</font></span></div><div style=3D"line-height: normal;"><sp=
an style=3D"background-color: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=
=9B=85=E9=BB=91">Section 3.2</font></span></div><div style=3D"line-height:=
 normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">In each of t=
he situations described above, both provisioning models=0A<br>   are appli=
cable.=0A<br>[Lizhong]: for the second situations above, how could you let=
 the reverse LSP =0A<br>   to be existed before the forward LSP for single=
 side provisioning? Wouldn't the&nbsp;</font></div><div style=3D"line-heig=
ht: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">reverse L=
SP trigger another&nbsp;</font><span style=3D"font-family: =E5=BE=AE=E8=BD=
=AF=E9=9B=85=E9=BB=91; font-size: 10.5pt; background-color: window;">rever=
se LSP?</span></div><div style=3D"line-height: normal;"><font face=3D"=E5=
=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br></font></div><div style=3D"line-hei=
ght: normal;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=
=3D"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" =
background-color:=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-st=
yle:=3D"" normal;text-decoration:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=
=E8=BD=AF=E9=9B=85=E9=BB=91">Section 3.2.1.&nbsp;<br>   For the single sid=
ed provisioning model, creation of reverse LSP1 is=0A<br>   triggered by L=
SP2 or creation of reverse LSP2 is triggered by LSP1. =0A<br>   When creat=
ion of reverse LSP2 is triggered by LSP1, LSP1 is=0A<br>   provisioned fir=
st (or refreshed if LSP1 already exists) at node A. =0A<br>[Lizhong]: LSP1=
 and LSP2 is in Firgure1? Better to explicitly say that in</font></span></=
div><div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=
=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(=
0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-weight:=
=3D"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none;'=3D=
""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">the document.</font=
></span></div><div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14px;=3D"" color:=
=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" fon=
t-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" =
none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br></font=
></span></div><div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14px;=3D"" color:=
=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" fon=
t-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" =
none;'=3D""><span style=3D"background-color: rgba(0, 0, 0, 0);"><font face=
=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">&nbsp;A similar procedure is use=
d if LSP2 is provisioned first at node B=0A<br>   and the creation of reve=
rse LSP1 at node A is either triggered by=0A<br>   LSP2 or the reverse LSP=
1 existed.  In all three scenarios, the two=0A<br>   unidirectional LSPs a=
re bound together to form an associated=0A<br>   bidirectional LSP based o=
n identical (Extended) ASSOCIATION Objects=0A<br>   in the two LSPs' Path =
messages.=0A<br>[Lizhong]: I doubt if the following scenario is realistic =
in Single Sided Provisioning. =0A<br>   LSP2 is provisioned first, reverse=
 LSP1 at node A is existed before LSP2.=0A<br>   The what is the Associati=
on Type in reverse LSP1? Before LSP2, will the reverse&nbsp;</font></span>=
</span></div><div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14px;=3D"" color:=
=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" fon=
t-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" =
none;'=3D""><span style=3D"background-color: rgba(0, 0, 0, 0);"><font face=
=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">LSP1 trigger another LSP?&nbsp;<=
br></font></span></span></div><div style=3D"line-height: normal;"><span =
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" =
14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D""=
 rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-=
decoration:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91"><br></font></span></div><div style=3D"line-height: normal;"><span =
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" =
14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D""=
 rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-=
decoration:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91">Section 5.  Processing Rules=0A<br>   In general, the processing r=
ules for the ASSOCIATION Object are as=0A<br>   specified in [RFC4872] and=
 Extended ASSOCIATION Object are specified=0A<br>   in [RFC6780].  Followi=
ng sections describe the rules for processing=0A<br>   (Extended) ASSOCIAT=
ION and REVERSE_LSP objects for associated=0A<br>   bidirectional LSPs.=0A=
<br>[Lizhong]: across the draft, it is not explicitly saying what is the p=
rocessing&nbsp;</font></span></div><div style=3D"line-height: normal;"><sp=
an =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D=
"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=
=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;=
text-decoration:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91">rules for independent provisioning. It is better to say it h=
ere or other place.<br></font></span></div><div style=3D"line-height: norm=
al;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-=
size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-=
color:=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" n=
ormal;text-decoration:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91"><br></font></span></div><div style=3D"line-height: nor=
mal;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font=
-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background=
-color:=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" =
normal;text-decoration:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91">Section 5.1</font></span></div><div style=3D"line-heig=
ht: normal;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D=
"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" bac=
kground-color:=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style=
:=3D"" normal;text-decoration:=3D"" none;'=3D""><span style=3D"background-=
color: rgba(0, 0, 0, 0);"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=
=91">(Extended)=0AASSOCIATION Objects with both single sided and double si=
ded=0A<br>   Association Types MUST NOT be added in the same Path message.=
=0A<br>[Lizhong]: what if two types exist together? Only use the first one=
?</font></span></span></div><div style=3D"line-height: normal;"><span =E5=
=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14p=
x;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rg=
ba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-dec=
oration:=3D"" none;'=3D""><span style=3D"background-color: rgba(0, 0, 0, 0=
);"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br></font></span>=
</span></div><div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=
=E8=BD=AF=E9=9B=85=E9=BB=91">Section 5.2</font></div><div style=3D"line-he=
ight: normal;"><span style=3D"background-color: rgba(0, 0, 0, 0);"><font f=
ace=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">The REVERSE_LSP Object MUST N=
OT be=0Aincluded in a REVERSE_LSP Object.=0A<br>[Lizhong]: typo here?</fon=
t></span></div><div style=3D"line-height: normal;"><span style=3D"backgrou=
nd-color: rgba(0, 0, 0, 0);"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91"><br></font></span></div><div style=3D"line-height: normal;"><span =
style=3D"background-color: rgba(0, 0, 0, 0);"><font face=3D"=E5=BE=AE=E8=
=BD=AF=E9=9B=85=E9=BB=91">Section 5.3</font></span></div><div style=3D"lin=
e-height: normal;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma=
'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D=
"" background-color:=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font=
-style:=3D"" normal;text-decoration:=3D"" none;'=3D""><font face=3D"=E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91">In particular, any object that was=0Acopie=
d as part of initial Path message creation MUST</font></span></div><div st=
yle=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=
=3D"" tahoma'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=
=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-weight:=3D"" norma=
l;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none;'=3D""><font fa=
ce=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">be copied when=0Amodified.  =
=0A<br>[Lizhong]: not understood "copied when modified", is it "copied aft=
er modified"?</font></span></div>=0A<div style=3D""><font face=3D"=E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br></font></div><div style=3D""><span tim=
es=3D"" new=3D"" roman'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(=
0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-weight:=
=3D"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none;'=3D=
""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">In both cases, when=
 the egress node receives a PathTear message the=0A<br>   node MUST remove=
 the associated reverse LSP using Standard PathTear=0A<br>   message proce=
ssing.  Tear down of the reverse LSP for other reasons=0A<br>   SHOULD NOT=
 trigger removal of the initiating LSP, but SHOULD result=0A<br>   in the =
egress node sending a PathErr with Error code "Admission=0A<br>   Control =
Failure (01) [RFC2205]" and Sub-code "Reverse LSP Failure"=0A<br>   define=
d in this document.=0A<br>[Lizhong]: the above description is not accurate=
. What if the egress node have</font></span></div><div style=3D""><span ti=
mes=3D"" new=3D"" roman'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb=
(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-weight:=
=3D"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none;'=3D=
""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">forward LSP down be=
cause of local link down? In that case, it will not receive</font></span><=
/div><div style=3D""><span times=3D"" new=3D"" roman'";=3D"" font-size:=3D=
"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=
=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;=
text-decoration:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91">PathTear, it is still need to tear down the reverse LSP? It =
should say, whenever&nbsp;</font></span></div><div style=3D""><span times=
=3D"" new=3D"" roman'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=
=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-weight:=3D=
"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none;'=3D"">=
<font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">the forward LSP is dow=
n, the reverse LSP SHOULD be removed.&nbsp;<br></font></span></div><div st=
yle=3D""><span times=3D"" new=3D"" roman'";=3D"" font-size:=3D"" 14px;=3D"=
" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=
=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decorati=
on:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><=
br></font></span></div><div style=3D""></div>=0A<div><span><div style=3D"m=
argin: 10px; font-size: 10pt;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=
=E9=BB=91"><div style=3D"font-size: 14px;">Regards</div><div style=3D"font=
-size: 14px;">Lizhong</div></font></div></span></div>=0A</body></html>
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Date: Thu, 19 Feb 2015 17:49:27 +0800
From: "lizho.jin@gmail.com" <lizho.jin@gmail.com>
To: teas <teas@ietf.org>, draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp <draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp@tools.ietf.org>
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}body { font-size: 10.5pt; font-family: 'Times New Roman'; color: rgb(0, 0=
, 0); line-height: 1.5; }</style></head><body>=0A<div><font face=3D"=E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><span></span>Sorry, I missed one more comm=
ent below:</font></div><div><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91">Section 7&nbsp;<span style=3D"font-size: 10.5pt; line-height: 1.5;=
 background-color: window;">Security Considerations</span></font></div><di=
v><span times=3D"" new=3D"" roman'";=3D"" font-size:=3D"" 14px;=3D"" color=
:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" fo=
nt-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D""=
 none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">[Lizhong]=
 the single side provisioning mode will allow one node to trigger another=
=0A<br>   node to setup LSP. This will introduce some security issue for t=
he remote node. =0A<br>   Some administrative police may be introduced to =
allow/deny others to trigger LSP setup.</font></span></div>=0A<div><br></d=
iv><hr style=3D"WIDTH: 210px; HEIGHT: 1px" color=3D"#b5c4df" size=3D"1" al=
ign=3D"left">=0A<div><span><div style=3D"MARGIN: 10px; FONT-FAMILY: verdan=
a; FONT-SIZE: 10pt"><div>Regards</div><div>Lizhong</div></div></span></div=
>=0A<blockquote style=3D"margin-top: 0px; margin-bottom: 0px; margin-left:=
 0.5em;"><div>&nbsp;</div><div style=3D"border:none;border-top:solid #B5C4=
DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><div style=3D"PADDING-RIGHT: 8px; PADD=
ING-LEFT: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUN=
D: #efefef; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b>&nbsp;=
<a href=3D"mailto:lizho.jin@gmail.com">lizho.jin@gmail.com</a></div><div><=
b>Date:</b>&nbsp;2015-02-19&nbsp;17:21</div><div><b>To:</b>&nbsp;<a href=
=3D"mailto:teas@ietf.org">teas</a>; <a href=3D"mailto:draft-ietf-teas-mpls=
-tp-rsvpte-ext-associated-lsp@tools.ietf.org">draft-ietf-teas-mpls-tp-rsvp=
te-ext-associated-lsp</a></div><div><b>CC:</b>&nbsp;<a href=3D"mailto:rtg-=
dir@ietf.org">rtg-dir@ietf.org</a>; <a href=3D"mailto:rtg-ads@tools.ietf.o=
rg">rtg-ads</a>; <a href=3D"mailto:teas@ietf.org">teas</a></div><div><b>Su=
bject:</b>&nbsp;RtgDir Review of draft-ietf-teas-mpls-tp-rsvpte-ext-associ=
ated-lsp-02</div></div></div><div><div class=3D"FoxDiv20150219174658733298=
">=0A<div><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><span></span=
></font><div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=
=AF=E9=9B=85=E9=BB=91">Hello</font></div><div style=3D"line-height: normal=
;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">&nbsp;</font></div>=
<div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91">I have been selected as the Routing Directorate reviewer for=
 this draft.</font></div><div style=3D"line-height: normal;"><font face=3D=
"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">The Routing Directorate seeks to re=
view all routing or routing-related</font></div><div style=3D"line-height:=
 normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">drafts as th=
ey pass through IETF last call and IESG review, and</font></div><div style=
=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=
=91">sometimes on special request. The purpose of the review is to provide=
</font></div><div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=
=E8=BD=AF=E9=9B=85=E9=BB=91">assistance to the Routing ADs. For more infor=
mation about the Routing</font></div><div style=3D"line-height: normal;"><=
font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Directorate, please see=
 =E2=80=8B</font></div><div style=3D"line-height: normal;"><a href=3D"http=
://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir" style=3D"text-decoration=
: none !important;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">ht=
tp://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir</font></a></div><div st=
yle=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91">&nbsp;</font></div><div style=3D"line-height: normal;"><font face=
=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Although these comments are prim=
arily for the use of the Routing ADs, it</font></div><div style=3D"line-he=
ight: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">would b=
e helpful if you could consider them along with any other IETF</font></div=
><div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=
=9B=85=E9=BB=91">Last Call comments that you receive, and strive to resolv=
e them through</font></div><div style=3D"line-height: normal;"><font face=
=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">discussion or by updating the dr=
aft.</font></div><div style=3D"line-height: normal;"><font face=3D"=E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91">&nbsp;</font></div><div style=3D"line-heig=
ht: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Document:=
&nbsp;<span style=3D"background-color: rgba(0, 0, 0, 0); line-height: 1.5;=
">draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-02</span></font></div>=
<div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91">Reviewer: Lizhong Jin</font></div><div style=3D"line-height:=
 normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Review Date:=
 19 February 2015</font></div><div style=3D"line-height: normal;"><font fa=
ce=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">IETF LC End Date: N/A</font></=
div><div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91">Intended Status: Standard Track</font></div><div style=
=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=
=91">&nbsp;</font></div><div style=3D"line-height: normal;"><font face=3D"=
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Summary:</font></div><div style=3D"l=
ine-height: normal;"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91; font-size: 10.5pt; background-color: window;">The document i=
s basically ready for publication. I found some minor&nbsp;</span><span st=
yle=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; font-size: 10.5p=
t; background-color: window;">issues, and hope</span></div><div style=3D"l=
ine-height: normal;"><span style=3D"background-color: window;"><font face=
=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">to see the clarification.</font>=
</span></div></div><div style=3D"line-height: normal;"><span style=3D"back=
ground-color: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"=
><br></font></span></div><div style=3D"line-height: normal;"><span style=
=3D"background-color: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=
=E9=BB=91">Commnets:</font></span></div><div style=3D"line-height: normal;=
"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91;">I pat=
icipate the initial discussion of this draft. I am lucky to review&nbsp;</=
span><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; fon=
t-size: 10.5pt; background-color: window;">it again. Overall, the<br>proce=
ssing rule of independent provisioning hope to be explicitly&nbsp;</span><=
span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; font-size=
: 10.5pt; background-color: window;">described.&nbsp;</span></div><div sty=
le=3D"line-height: normal;"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91; font-size: 10.5pt; background-color: window;">No major=
 issues, some minor issues need to be clarified.</span></div><div style=3D=
"line-height: normal;"><span style=3D"background-color: window;"><font fac=
e=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br></font></span></div><div st=
yle=3D"line-height: normal;"><span style=3D"background-color: window;"><fo=
nt face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Major issues: No</font></=
span></div><div style=3D"line-height: normal;"><span style=3D"background-c=
olor: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br></f=
ont></span></div><div style=3D"line-height: normal;"><span style=3D"backgr=
ound-color: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">M=
inor issues:</font></span></div><div style=3D"line-height: normal;"><span =
style=3D"background-color: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91">Section 3.2</font></span></div><div style=3D"line-height: no=
rmal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">In each of the =
situations described above, both provisioning models=0A<br>   are applicab=
le.=0A<br>[Lizhong]: for the second situations above, how could you let th=
e reverse LSP =0A<br>   to be existed before the forward LSP for single si=
de provisioning? Wouldn't the&nbsp;</font></div><div style=3D"line-height:=
 normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">reverse LSP =
trigger another&nbsp;</font><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91; font-size: 10.5pt; background-color: window;">reverse =
LSP?</span></div><div style=3D"line-height: normal;"><font face=3D"=E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br></font></div><div style=3D"line-height=
: normal;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D""=
 font-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" backg=
round-color:=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=
=3D"" normal;text-decoration:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=
=BD=AF=E9=9B=85=E9=BB=91">Section 3.2.1.&nbsp;<br>   For the single sided =
provisioning model, creation of reverse LSP1 is=0A<br>   triggered by LSP2=
 or creation of reverse LSP2 is triggered by LSP1. =0A<br>   When creation=
 of reverse LSP2 is triggered by LSP1, LSP1 is=0A<br>   provisioned first =
(or refreshed if LSP1 already exists) at node A. =0A<br>[Lizhong]: LSP1 an=
d LSP2 is in Firgure1? Better to explicitly say that in</font></span></div=
><div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=
=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-weight:=3D=
"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none;'=3D"">=
<font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">the document.</font></=
span></div><div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=E9=
=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"=
" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-we=
ight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none=
;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br></font></s=
pan></div><div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=E9=
=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"=
" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-we=
ight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none=
;'=3D""><span style=3D"background-color: rgba(0, 0, 0, 0);"><font face=3D"=
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">&nbsp;A similar procedure is used if=
 LSP2 is provisioned first at node B=0A<br>   and the creation of reverse =
LSP1 at node A is either triggered by=0A<br>   LSP2 or the reverse LSP1 ex=
isted.  In all three scenarios, the two=0A<br>   unidirectional LSPs are b=
ound together to form an associated=0A<br>   bidirectional LSP based on id=
entical (Extended) ASSOCIATION Objects=0A<br>   in the two LSPs' Path mess=
ages.=0A<br>[Lizhong]: I doubt if the following scenario is realistic in S=
ingle Sided Provisioning. =0A<br>   LSP2 is provisioned first, reverse LSP=
1 at node A is existed before LSP2.=0A<br>   The what is the Association T=
ype in reverse LSP1? Before LSP2, will the reverse&nbsp;</font></span></sp=
an></div><div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=E9=
=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"=
" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-we=
ight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none=
;'=3D""><span style=3D"background-color: rgba(0, 0, 0, 0);"><font face=3D"=
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">LSP1 trigger another LSP?&nbsp;<br><=
/font></span></span></div><div style=3D"line-height: normal;"><span =E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14px;=
=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba=
(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decor=
ation:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91=
"><br></font></span></div><div style=3D"line-height: normal;"><span =E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14px;=
=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba=
(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decor=
ation:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91=
">Section 5.  Processing Rules=0A<br>   In general, the processing rules f=
or the ASSOCIATION Object are as=0A<br>   specified in [RFC4872] and Exten=
ded ASSOCIATION Object are specified=0A<br>   in [RFC6780].  Following sec=
tions describe the rules for processing=0A<br>   (Extended) ASSOCIATION an=
d REVERSE_LSP objects for associated=0A<br>   bidirectional LSPs.=0A<br>[L=
izhong]: across the draft, it is not explicitly saying what is the process=
ing&nbsp;</font></span></div><div style=3D"line-height: normal;"><span =E5=
=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14p=
x;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rg=
ba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-dec=
oration:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=
=91">rules for independent provisioning. It is better to say it here or ot=
her place.<br></font></span></div><div style=3D"line-height: normal;"><spa=
n =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"=
" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D=
"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;tex=
t-decoration:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=
=E9=BB=91"><br></font></span></div><div style=3D"line-height: normal;"><sp=
an =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D=
"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=
=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;=
text-decoration:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91">Section 5.1</font></span></div><div style=3D"line-height: no=
rmal;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" fon=
t-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" backgroun=
d-color:=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D""=
 normal;text-decoration:=3D"" none;'=3D""><span style=3D"background-color:=
 rgba(0, 0, 0, 0);"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">(E=
xtended)=0AASSOCIATION Objects with both single sided and double sided=0A<=
br>   Association Types MUST NOT be added in the same Path message.=0A<br>=
[Lizhong]: what if two types exist together? Only use the first one?</font=
></span></span></div><div style=3D"line-height: normal;"><span =E5=BE=AE=
=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D"" font-size:=3D"" 14px;=3D"=
" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=
=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decorati=
on:=3D"" none;'=3D""><span style=3D"background-color: rgba(0, 0, 0, 0);"><=
font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br></font></span></spa=
n></div><div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=
=AF=E9=9B=85=E9=BB=91">Section 5.2</font></div><div style=3D"line-height: =
normal;"><span style=3D"background-color: rgba(0, 0, 0, 0);"><font face=3D=
"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">The REVERSE_LSP Object MUST NOT be=
=0Aincluded in a REVERSE_LSP Object.=0A<br>[Lizhong]: typo here?</font></s=
pan></div><div style=3D"line-height: normal;"><span style=3D"background-co=
lor: rgba(0, 0, 0, 0);"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91=
"><br></font></span></div><div style=3D"line-height: normal;"><span style=
=3D"background-color: rgba(0, 0, 0, 0);"><font face=3D"=E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91">Section 5.3</font></span></div><div style=3D"line-heig=
ht: normal;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" tahoma'";=3D=
"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" bac=
kground-color:=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" font-style=
:=3D"" normal;text-decoration:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=
=BD=AF=E9=9B=85=E9=BB=91">In particular, any object that was=0Acopied as p=
art of initial Path message creation MUST</font></span></div><div style=3D=
"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,=3D"" ta=
homa'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0)=
;=3D"" background-color:=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D"" =
font-style:=3D"" normal;text-decoration:=3D"" none;'=3D""><font face=3D"=
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">be copied when=0Amodified.  =0A<br>[=
Lizhong]: not understood "copied when modified", is it "copied after modif=
ied"?</font></span></div>=0A<div style=3D""><font face=3D"=E5=BE=AE=E8=BD=
=AF=E9=9B=85=E9=BB=91"><br></font></div><div style=3D""><span times=3D"" n=
ew=3D"" roman'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0=
,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-weight:=3D"" norm=
al;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none;'=3D""><font f=
ace=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">In both cases, when the egres=
s node receives a PathTear message the=0A<br>   node MUST remove the assoc=
iated reverse LSP using Standard PathTear=0A<br>   message processing.  Te=
ar down of the reverse LSP for other reasons=0A<br>   SHOULD NOT trigger r=
emoval of the initiating LSP, but SHOULD result=0A<br>   in the egress nod=
e sending a PathErr with Error code "Admission=0A<br>   Control Failure (0=
1) [RFC2205]" and Sub-code "Reverse LSP Failure"=0A<br>   defined in this =
document.=0A<br>[Lizhong]: the above description is not accurate. What if =
the egress node have</font></span></div><div style=3D""><span times=3D"" n=
ew=3D"" roman'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0=
,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-weight:=3D"" norm=
al;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none;'=3D""><font f=
ace=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">forward LSP down because of l=
ocal link down? In that case, it will not receive</font></span></div><div =
style=3D""><span times=3D"" new=3D"" roman'";=3D"" font-size:=3D"" 14px;=
=3D"" color:=3D"" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba=
(0,=3D"" font-weight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decor=
ation:=3D"" none;'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91=
">PathTear, it is still need to tear down the reverse LSP? It should say, =
whenever&nbsp;</font></span></div><div style=3D""><span times=3D"" new=3D"=
" roman'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D"" rgb(0,=3D"" 0,=3D""=
 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-weight:=3D"" normal;=3D=
"" font-style:=3D"" normal;text-decoration:=3D"" none;'=3D""><font face=3D=
"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">the forward LSP is down, the revers=
e LSP SHOULD be removed.&nbsp;<br></font></span></div><div style=3D""><spa=
n times=3D"" new=3D"" roman'";=3D"" font-size:=3D"" 14px;=3D"" color:=3D""=
 rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-wei=
ght:=3D"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none;=
'=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br></font></sp=
an></div><div style=3D""></div>=0A<div><span><div style=3D"margin: 10px; f=
ont-size: 10pt;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><div =
style=3D"font-size: 14px;">Regards</div><div style=3D"font-size: 14px;">Li=
zhong</div></font></div></span></div>=0A</div></div></blockquote>=0A</body=
></html>
------=_001_NextPart866671367635_=------


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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: Lou Berger <lberger@labn.net>, "teas@ietf.org" <teas@ietf.org>
Thread-Topic: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Subject: Re: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Hi Lou, WG,

Thanks for the summary.

I support option (a).

Also copying co-authors if there is any objection.

thanks,
Rakesh



On 2015-02-17 9:09 PM, "Lou Berger" <lberger@labn.net> wrote:

>All,
>
>I think we *really* need some input here from the WG.  So let me try to
>summarize the situation:
>
>The problem:
>As part of flushing out details that Adrian correctly pointed out were
>underspecified, we noted that when the REVERSE_LSP Object is not present
>there is no way for a node receiving a single sided type association to
>know if it is really the triggering node and to not initiate a new
>reverse LSP.=20
>
>The fix:
>There needs to be something in the Path message of a single sided type
>association to disambiguate the forward and reverse LSP.
>
>Some options:
>a) Always require a  REVERSE_LSP Object in the forward LSP
>b) use a different association types in forward and reverse directions,
>and introduce type-specific matching rules
>c) add a bit somewhere, e.g., in LSP ATTRIBUTES
>d) ???
>
>The proposal in Rakesh's mail is to go with option (a), i.e., a
>REVERSE_LSP Object MUST be present in the Path message of the forward LSP.
>
>To me this seems like a reasonable and safe change, and was even
>discussed at some point.
>
>Are there any objections?
>
>Are there any implementations that will be negatively impacted by this
>change?  (And if so, what option do you prefer.)
>
>Note the draft will need to be updated to reflect the outcome of this
>discussion at which time the WG will again be asked to comment on the
>changes.
>
>Thanks,
>Lou (as Shepherd and co-Chair)
>
>On 2/14/2015 11:38 AM, Rakesh Gandhi (rgandhi) wrote:
>> Hi WG,
>>
>> Seeking input on the following clarification.
>>
>>
>> Original text in the draft for the single sided association LSP setup:
>> ----------------------------------------------------------------------
>>    If REVERSE_LSP Object is not present in the received Path message of
>> the LSP, the egress node SHOULD use the LSP properties from the
>>    received LSP Path message to signal the LSP in the reverse direction
>> (which may depend on the local policy).
>>
>>
>> Issue with this text:
>> ---------------------
>> Let's say, an ingress node signals the forward LSP with single sided
>> association type but without REVERSE_LSP object.
>> An egress node creates a reverse LSP using the objects from the Path
>> message of the forward LSP.
>> At the ingress node, this reverse LSP can in turn trigger to create
>> another reverse (well forward) LSP as a response.
>>
>>
>> Clarification:
>> --------------
>> Use the presence of REVERSE_LSP Object in the Path message of the
>>forward
>> LSP as a trigger to create a reverse LSP on the egress node.
>> Egress node does not add it in the reverse LSP, so the ingress does not
>> trigger another reverse (well forward) LSP since REVERSE_LSP Object is
>>not
>> present.
>>
>>
>> Welcome your inputs.
>>
>> Thanks,
>> Rakesh
>>
>>
>>
>>
>>> The IETF datatracker status page for this draft is:
>>>=20
>>>https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-asso
>>>ci
>>> ated-lsp/
>>>
>>> There's also a htmlized version available at:
>>>=20
>>>http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated
>>>-l
>>> sp-03
>> _______________________________________________
>> Teas mailing list
>> Teas@ietf.org
>> https://www.ietf.org/mailman/listinfo/teas
>>
>
>
>


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Subject: [Teas] I-D Action: draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-04.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 Traffic Engineering Architecture and Signaling Working Group of the IETF.

        Title           : RSVP-TE Extensions for Associated Bidirectional LSPs
        Authors         : Fei Zhang
                          Ruiquan Jing
                          Rakesh Gandhi
	Filename        : draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-04.txt
	Pages           : 20
	Date            : 2015-02-19

Abstract:
   This document describes Resource reSerVation Protocol (RSVP)
   extensions to bind two point-to-point unidirectional Label Switched
   Paths (LSPs) into an associated bidirectional LSP.  The association
   is achieved by defining new Association Types for use in ASSOCIATION
   and in Extended ASSOCIATION Objects.  One of these types enables
   independent provisioning of the associated bidirectional LSPs on both
   sides, while the other enables single sided provisioning.  The
   REVERSE_LSP Object is also defined to enable a single endpoint to
   specify all the parameters of an associated LSP in the single sided
   provisioning case.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-04

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-04


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: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: "teas@ietf.org" <teas@ietf.org>
Thread-Topic: [Teas] I-D Action: draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-04.txt
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Hi WG,

This revision introduces the changes for option (a) for the issue raised
in the email titled "[Teas] A clarification request for
draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp".

The suggested changes are for your review. Welcome your
comments/suggestions.

Thanks,
Rakesh


On 2015-02-19 8:14 PM, "internet-drafts@ietf.org"
<internet-drafts@ietf.org> wrote:

>
>A New Internet-Draft is available from the on-line Internet-Drafts
>directories.
> This draft is a work item of the Traffic Engineering Architecture and
>Signaling Working Group of the IETF.
>
>        Title           : RSVP-TE Extensions for Associated Bidirectional
>LSPs
>        Authors         : Fei Zhang
>                          Ruiquan Jing
>                          Rakesh Gandhi
>	Filename        :
>draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-04.txt
>	Pages           : 20
>	Date            : 2015-02-19
>
>Abstract:
>   This document describes Resource reSerVation Protocol (RSVP)
>   extensions to bind two point-to-point unidirectional Label Switched
>   Paths (LSPs) into an associated bidirectional LSP.  The association
>   is achieved by defining new Association Types for use in ASSOCIATION
>   and in Extended ASSOCIATION Objects.  One of these types enables
>   independent provisioning of the associated bidirectional LSPs on both
>   sides, while the other enables single sided provisioning.  The
>   REVERSE_LSP Object is also defined to enable a single endpoint to
>   specify all the parameters of an associated LSP in the single sided
>   provisioning case.
>
>
>The IETF datatracker status page for this draft is:
>https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associ
>ated-lsp/
>
>There's also a htmlized version available at:
>http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-l
>sp-04
>
>A diff from the previous version is available at:
>http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-teas-mpls-tp-rsvpte-ext-asso=
ci
>ated-lsp-04
>
>
>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/
>
>_______________________________________________
>Teas mailing list
>Teas@ietf.org
>https://www.ietf.org/mailman/listinfo/teas


From nobody Thu Feb 19 20:22:58 2015
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Date: Fri, 20 Feb 2015 12:22:44 +0800
From: Loa Andersson <loa@pi.nu>
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To: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>,  "teas@ietf.org" <teas@ietf.org>
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Subject: Re: [Teas] I-D Action: draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-04.txt
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Rakesh, working group,

I think that option (a) is the simplest and what we should do.

One question though - the REVERSE_LSP Object was allocated by IANA
like 6 month ago. This is normally done because we have implementations
(often about to be deployed), now if we move from that the REVERSE_LSP
Object "is not required" to "is required" will that cause backwards
compatibility problems for the early implementations?

/Loa



On 2015-02-20 09:49, Rakesh Gandhi (rgandhi) wrote:
> Hi WG,
>
> This revision introduces the changes for option (a) for the issue raised
> in the email titled "[Teas] A clarification request for
> draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp".
>
> The suggested changes are for your review. Welcome your
> comments/suggestions.
>
> Thanks,
> Rakesh
>
>
> On 2015-02-19 8:14 PM, "internet-drafts@ietf.org"
> <internet-drafts@ietf.org> wrote:
>
>>
>> A New Internet-Draft is available from the on-line Internet-Drafts
>> directories.
>> This draft is a work item of the Traffic Engineering Architecture and
>> Signaling Working Group of the IETF.
>>
>>         Title           : RSVP-TE Extensions for Associated Bidirectional
>> LSPs
>>         Authors         : Fei Zhang
>>                           Ruiquan Jing
>>                           Rakesh Gandhi
>> 	Filename        :
>> draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-04.txt
>> 	Pages           : 20
>> 	Date            : 2015-02-19
>>
>> Abstract:
>>    This document describes Resource reSerVation Protocol (RSVP)
>>    extensions to bind two point-to-point unidirectional Label Switched
>>    Paths (LSPs) into an associated bidirectional LSP.  The association
>>    is achieved by defining new Association Types for use in ASSOCIATION
>>    and in Extended ASSOCIATION Objects.  One of these types enables
>>    independent provisioning of the associated bidirectional LSPs on both
>>    sides, while the other enables single sided provisioning.  The
>>    REVERSE_LSP Object is also defined to enable a single endpoint to
>>    specify all the parameters of an associated LSP in the single sided
>>    provisioning case.
>>
>>
>> The IETF datatracker status page for this draft is:
>> https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associ
>> ated-lsp/
>>
>> There's also a htmlized version available at:
>> http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-l
>> sp-04
>>
>> A diff from the previous version is available at:
>> http://www.ietf.org/rfcdiff?url2=draft-ietf-teas-mpls-tp-rsvpte-ext-associ
>> ated-lsp-04
>>
>>
>> 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/
>>
>> _______________________________________________
>> Teas mailing list
>> Teas@ietf.org
>> https://www.ietf.org/mailman/listinfo/teas
>
> _______________________________________________
> Teas mailing list
> Teas@ietf.org
> https://www.ietf.org/mailman/listinfo/teas
>

-- 


Loa Andersson                        email: loa@mail01.huawei.com
Senior MPLS Expert                          loa@pi.nu
Huawei Technologies (consultant)     phone: +46 739 81 21 64


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From: "Zhangfei (Philip)" <zhangfei7@huawei.com>
To: Lou Berger <lberger@labn.net>, "teas@ietf.org" <teas@ietf.org>
Thread-Topic: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Subject: Re: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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From: Loa Andersson <loa@pi.nu>
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To: Lou Berger <lberger@labn.net>, "teas@ietf.org" <teas@ietf.org>
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Subject: Re: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Lou,

There are lots of "forward LSPs" out there, what is the criteria more
in detail where the REVERSE_LSP Object will be required if we choose
option 1?

/Loa

On 2015-02-18 10:09, Lou Berger wrote:
> Some options:
> a) Always require a  REVERSE_LSP Object in the forward LSP

-- 


Loa Andersson                        email: loa@mail01.huawei.com
Senior MPLS Expert                          loa@pi.nu
Huawei Technologies (consultant)     phone: +46 739 81 21 64


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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: Loa Andersson <loa@pi.nu>, "teas@ietf.org" <teas@ietf.org>
Thread-Topic: [Teas] I-D Action: draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-04.txt
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Subject: Re: [Teas] I-D Action: draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-04.txt
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Hi Loa,

Thank you for your comments.

We (authors) had requested the IANA allocation.
We (authors) are not aware of an implementation where this will introduce
an interop issue.

thanks,
Rakesh


On 2015-02-19 11:22 PM, "Loa Andersson" <loa@pi.nu> wrote:

>Rakesh, working group,
>
>I think that option (a) is the simplest and what we should do.
>
>One question though - the REVERSE_LSP Object was allocated by IANA
>like 6 month ago. This is normally done because we have implementations
>(often about to be deployed), now if we move from that the REVERSE_LSP
>Object "is not required" to "is required" will that cause backwards
>compatibility problems for the early implementations?
>
>/Loa
>
>
>
>On 2015-02-20 09:49, Rakesh Gandhi (rgandhi) wrote:
>> Hi WG,
>>
>> This revision introduces the changes for option (a) for the issue raised
>> in the email titled "[Teas] A clarification request for
>> draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp".
>>
>> The suggested changes are for your review. Welcome your
>> comments/suggestions.
>>
>> Thanks,
>> Rakesh
>>
>>
>> On 2015-02-19 8:14 PM, "internet-drafts@ietf.org"
>> <internet-drafts@ietf.org> wrote:
>>
>>>
>>> A New Internet-Draft is available from the on-line Internet-Drafts
>>> directories.
>>> This draft is a work item of the Traffic Engineering Architecture and
>>> Signaling Working Group of the IETF.
>>>
>>>         Title           : RSVP-TE Extensions for Associated
>>>Bidirectional
>>> LSPs
>>>         Authors         : Fei Zhang
>>>                           Ruiquan Jing
>>>                           Rakesh Gandhi
>>> 	Filename        :
>>> draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-04.txt
>>> 	Pages           : 20
>>> 	Date            : 2015-02-19
>>>
>>> Abstract:
>>>    This document describes Resource reSerVation Protocol (RSVP)
>>>    extensions to bind two point-to-point unidirectional Label Switched
>>>    Paths (LSPs) into an associated bidirectional LSP.  The association
>>>    is achieved by defining new Association Types for use in ASSOCIATION
>>>    and in Extended ASSOCIATION Objects.  One of these types enables
>>>    independent provisioning of the associated bidirectional LSPs on
>>>both
>>>    sides, while the other enables single sided provisioning.  The
>>>    REVERSE_LSP Object is also defined to enable a single endpoint to
>>>    specify all the parameters of an associated LSP in the single sided
>>>    provisioning case.
>>>
>>>
>>> The IETF datatracker status page for this draft is:
>>>=20
>>>https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-asso
>>>ci
>>> ated-lsp/
>>>
>>> There's also a htmlized version available at:
>>>=20
>>>http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated
>>>-l
>>> sp-04
>>>
>>> A diff from the previous version is available at:
>>>=20
>>>http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-teas-mpls-tp-rsvpte-ext-as=
so
>>>ci
>>> ated-lsp-04
>>>
>>>
>>> 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/
>>>
>>> _______________________________________________
>>> Teas mailing list
>>> Teas@ietf.org
>>> https://www.ietf.org/mailman/listinfo/teas
>>
>> _______________________________________________
>> Teas mailing list
>> Teas@ietf.org
>> https://www.ietf.org/mailman/listinfo/teas
>>
>
>--=20
>
>
>Loa Andersson                        email: loa@mail01.huawei.com
>Senior MPLS Expert                          loa@pi.nu
>Huawei Technologies (consultant)     phone: +46 739 81 21 64


From nobody Fri Feb 20 07:39:53 2015
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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: Loa Andersson <loa@pi.nu>, Lou Berger <lberger@labn.net>, "teas@ietf.org" <teas@ietf.org>
Thread-Topic: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Subject: Re: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Hi Loa,

This is for the associated bidirectional LSPs when using single sided
provisioning.=20
Specially, when the initiating node is inserting the ASSOCIATION Object
with Association Type "Single Sided Associated Bidirectional LSP" to
trigger creation of reverse LSP on the egress node.

Thanks,
Rakesh


On 2015-02-20 8:30 AM, "Loa Andersson" <loa@pi.nu> wrote:

>Lou,
>
>There are lots of "forward LSPs" out there, what is the criteria more
>in detail where the REVERSE_LSP Object will be required if we choose
>option 1?
>
>/Loa
>
>On 2015-02-18 10:09, Lou Berger wrote:
>> Some options:
>> a) Always require a  REVERSE_LSP Object in the forward LSP
>
>--=20
>
>
>Loa Andersson                        email: loa@mail01.huawei.com
>Senior MPLS Expert                          loa@pi.nu
>Huawei Technologies (consultant)     phone: +46 739 81 21 64
>
>_______________________________________________
>Teas mailing list
>Teas@ietf.org
>https://www.ietf.org/mailman/listinfo/teas


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Subject: Re: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Loa has a fair point.  If the draft is ambiguous on this point, it
should be clarified.

Loa,
    Can you take a look at the latest rev of the draft and let us know
if you think is sufficiently clear?

Thanks,
Lou

On 2/20/2015 10:39 AM, Rakesh Gandhi (rgandhi) wrote:
> Hi Loa,
>
> This is for the associated bidirectional LSPs when using single sided
> provisioning. 
> Specially, when the initiating node is inserting the ASSOCIATION Object
> with Association Type "Single Sided Associated Bidirectional LSP" to
> trigger creation of reverse LSP on the egress node.
>
> Thanks,
> Rakesh
>
>
> On 2015-02-20 8:30 AM, "Loa Andersson" <loa@pi.nu> wrote:
>
>> Lou,
>>
>> There are lots of "forward LSPs" out there, what is the criteria more
>> in detail where the REVERSE_LSP Object will be required if we choose
>> option 1?
>>
>> /Loa
>>
>> On 2015-02-18 10:09, Lou Berger wrote:
>>> Some options:
>>> a) Always require a  REVERSE_LSP Object in the forward LSP
>> -- 
>>
>>
>> Loa Andersson                        email: loa@mail01.huawei.com
>> Senior MPLS Expert                          loa@pi.nu
>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>
>> _______________________________________________
>> Teas mailing list
>> Teas@ietf.org
>> https://www.ietf.org/mailman/listinfo/teas
> _______________________________________________
> Teas mailing list
> Teas@ietf.org
> https://www.ietf.org/mailman/listinfo/teas
>



From nobody Sat Feb 21 03:03:15 2015
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From: Loa Andersson <loa@pi.nu>
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To: Lou Berger <lberger@labn.net>,  "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
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Subject: Re: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Folks,

We might be close requiring the obvious, but I would feel more
comfortable if the draft said (in section 5.2) were a little bit
clearer.

It was changed from:
	 		
    A node initiating a Path message containing an ASSOCIATION or
    Extended ASSOCIATION Object with the Association Type set to "Single
    Sided Associated Bidirectional LSP" MUST include a REVERSE_LSP Object
    in the Path message of the LSP when it wishes to control the reverse
    LSP originating on the other endpoint node.

To:
    A node initiating a Path message containing an ASSOCIATION or
    Extended ASSOCIATION Object with the Association Type set to "Single
    Sided Associated Bidirectional LSP" MUST include a REVERSE_LSP Object
    in the Path message of the LSP.

Maybe:	

    When a node initiates setup of an LSP using a PATH message containing
    an ASSOCIATION or Extended ASSOCIATION Object, and the Association
    is Type "Single Sided Associated Bidirectional LSP", the PATH message
    MUST carry the REVERSE_LSP Object.

I won't insist on a change, what is there is probably good enough, if
what I written is clearer and you want to use, use it.

However, there were one more thing that bothered me, we appear to be
changing the rules that applies to the REVERSE_LSP Object. Before it
was "optional" now it becomes "mandatory".

The authors says that they have not deployed any implementation that
follows the old rule. This is fine, but are we sure that no one else
has? Do we need to take steps to make sure that this is not the case?

/Loa




On 2015-02-21 00:33, Lou Berger wrote:
> Loa has a fair point.  If the draft is ambiguous on this point, it
> should be clarified.
>
> Loa,
>      Can you take a look at the latest rev of the draft and let us know
> if you think is sufficiently clear?
>
> Thanks,
> Lou
>
> On 2/20/2015 10:39 AM, Rakesh Gandhi (rgandhi) wrote:
>> Hi Loa,
>>
>> This is for the associated bidirectional LSPs when using single sided
>> provisioning.
>> Specially, when the initiating node is inserting the ASSOCIATION Object
>> with Association Type "Single Sided Associated Bidirectional LSP" to
>> trigger creation of reverse LSP on the egress node.
>>
>> Thanks,
>> Rakesh
>>
>>
>> On 2015-02-20 8:30 AM, "Loa Andersson" <loa@pi.nu> wrote:
>>
>>> Lou,
>>>
>>> There are lots of "forward LSPs" out there, what is the criteria more
>>> in detail where the REVERSE_LSP Object will be required if we choose
>>> option 1?
>>>
>>> /Loa
>>>
>>> On 2015-02-18 10:09, Lou Berger wrote:
>>>> Some options:
>>>> a) Always require a  REVERSE_LSP Object in the forward LSP
>>> --
>>>
>>>
>>> Loa Andersson                        email: loa@mail01.huawei.com
>>> Senior MPLS Expert                          loa@pi.nu
>>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>>
>>> _______________________________________________
>>> Teas mailing list
>>> Teas@ietf.org
>>> https://www.ietf.org/mailman/listinfo/teas
>> _______________________________________________
>> Teas mailing list
>> Teas@ietf.org
>> https://www.ietf.org/mailman/listinfo/teas
>>
>
>

-- 


Loa Andersson                        email: loa@mail01.huawei.com
Senior MPLS Expert                          loa@pi.nu
Huawei Technologies (consultant)     phone: +46 739 81 21 64


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From: Lou Berger <lberger@labn.net>
To: Loa Andersson <loa@pi.nu>, "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
Date: Sat, 21 Feb 2015 07:18:32 -0500
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Subject: Re: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Loa,

See below.

On February 21, 2015 6:03:38 AM Loa Andersson <loa@pi.nu> wrote:

> Folks,
>
> We might be close requiring the obvious, but I would feel more
> comfortable if the draft said (in section 5.2) were a little bit
> clearer.
>
> It was changed from:
> 	 		
>     A node initiating a Path message containing an ASSOCIATION or
>     Extended ASSOCIATION Object with the Association Type set to "Single
>     Sided Associated Bidirectional LSP" MUST include a REVERSE_LSP Object
>     in the Path message of the LSP when it wishes to control the reverse
>     LSP originating on the other endpoint node.
>
> To:
>     A node initiating a Path message containing an ASSOCIATION or
>     Extended ASSOCIATION Object with the Association Type set to "Single
>     Sided Associated Bidirectional LSP" MUST include a REVERSE_LSP Object
>     in the Path message of the LSP.
>
> Maybe:	
>
>     When a node initiates setup of an LSP using a PATH message containing
>     an ASSOCIATION or Extended ASSOCIATION Object, and the Association
>     is Type "Single Sided Associated Bidirectional LSP", the PATH message
>     MUST carry the REVERSE_LSP Object.
>
> I won't insist on a change, what is there is probably good enough, if
> what I written is clearer and you want to use, use it.
>
> However, there were one more thing that bothered me, we appear to be
> changing the rules that applies to the REVERSE_LSP Object. Before it
> was "optional" now it becomes "mandatory".
>
> The authors says that they have not deployed any implementation that
> follows the old rule. This is fine, but are we sure that no one else
> has?

If they have, they need to speak up, then we can decide if and how it 
impacts our direction.

> Do we need to take steps to make sure that this is not the case?
>

Given the score of post wg lc changes, I expect we'll do another lc once 
all open issues are resolved. This will be another opportunity for folks to 
speak up.

Lou

> /Loa
>
>
>
>
> On 2015-02-21 00:33, Lou Berger wrote:
> > Loa has a fair point.  If the draft is ambiguous on this point, it
> > should be clarified.
> >
> > Loa,
> >      Can you take a look at the latest rev of the draft and let us know
> > if you think is sufficiently clear?
> >
> > Thanks,
> > Lou
> >
> > On 2/20/2015 10:39 AM, Rakesh Gandhi (rgandhi) wrote:
> >> Hi Loa,
> >>
> >> This is for the associated bidirectional LSPs when using single sided
> >> provisioning.
> >> Specially, when the initiating node is inserting the ASSOCIATION Object
> >> with Association Type "Single Sided Associated Bidirectional LSP" to
> >> trigger creation of reverse LSP on the egress node.
> >>
> >> Thanks,
> >> Rakesh
> >>
> >>
> >> On 2015-02-20 8:30 AM, "Loa Andersson" <loa@pi.nu> wrote:
> >>
> >>> Lou,
> >>>
> >>> There are lots of "forward LSPs" out there, what is the criteria more
> >>> in detail where the REVERSE_LSP Object will be required if we choose
> >>> option 1?
> >>>
> >>> /Loa
> >>>
> >>> On 2015-02-18 10:09, Lou Berger wrote:
> >>>> Some options:
> >>>> a) Always require a  REVERSE_LSP Object in the forward LSP
> >>> --
> >>>
> >>>
> >>> Loa Andersson                        email: loa@mail01.huawei.com
> >>> Senior MPLS Expert                          loa@pi.nu
> >>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
> >>>
> >>> _______________________________________________
> >>> Teas mailing list
> >>> Teas@ietf.org
> >>> https://www.ietf.org/mailman/listinfo/teas
> >> _______________________________________________
> >> Teas mailing list
> >> Teas@ietf.org
> >> https://www.ietf.org/mailman/listinfo/teas
> >>
> >
> >
>
> --
>
>
> Loa Andersson                        email: loa@mail01.huawei.com
> Senior MPLS Expert                          loa@pi.nu
> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>
> _______________________________________________
> Teas mailing list
> Teas@ietf.org
> https://www.ietf.org/mailman/listinfo/teas
>



From nobody Sat Feb 21 07:05:55 2015
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Subject: [Teas] I-D Action: draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-05.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 Traffic Engineering Architecture and Signaling Working Group of the IETF.

        Title           : RSVP-TE Extensions for Associated Bidirectional LSPs
        Authors         : Fei Zhang
                          Ruiquan Jing
                          Rakesh Gandhi
	Filename        : draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-05.txt
	Pages           : 20
	Date            : 2015-02-21

Abstract:
   This document describes Resource reSerVation Protocol (RSVP)
   extensions to bind two point-to-point unidirectional Label Switched
   Paths (LSPs) into an associated bidirectional LSP.  The association
   is achieved by defining new Association Types for use in ASSOCIATION
   and in Extended ASSOCIATION Objects.  One of these types enables
   independent provisioning of the associated bidirectional LSPs on both
   sides, while the other enables single sided provisioning.  The
   REVERSE_LSP Object is also defined to enable a single endpoint to
   specify all the parameters of an associated LSP in the single sided
   provisioning case.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-05

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-05


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 Sat Feb 21 07:07:27 2015
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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: Loa Andersson <loa@pi.nu>, Lou Berger <lberger@labn.net>
Thread-Topic: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Date: Sat, 21 Feb 2015 15:07:20 +0000
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Subject: Re: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Hi Loa,

Thank you for your review and comments.

Please see inline .. <RG> ..

On 2015-02-21 6:03 AM, "Loa Andersson" <loa@pi.nu> wrote:

>Folks,
>
>We might be close requiring the obvious, but I would feel more
>comfortable if the draft said (in section 5.2) were a little bit
>clearer.
>
>It was changed from:
>	 	=09
>    A node initiating a Path message containing an ASSOCIATION or
>    Extended ASSOCIATION Object with the Association Type set to "Single
>    Sided Associated Bidirectional LSP" MUST include a REVERSE_LSP Object
>    in the Path message of the LSP when it wishes to control the reverse
>    LSP originating on the other endpoint node.
>
>To:
>    A node initiating a Path message containing an ASSOCIATION or
>    Extended ASSOCIATION Object with the Association Type set to "Single
>    Sided Associated Bidirectional LSP" MUST include a REVERSE_LSP Object
>    in the Path message of the LSP.
>
>Maybe:=09
>
>    When a node initiates setup of an LSP using a PATH message containing
>    an ASSOCIATION or Extended ASSOCIATION Object, and the Association
>    is Type "Single Sided Associated Bidirectional LSP", the PATH message
>    MUST carry the REVERSE_LSP Object.
>
>I won't insist on a change, what is there is probably good enough, if
>what I written is clearer and you want to use, use it.


<RG> Reworded this text in the latest revision (05). May be it reads
better now.


>
>However, there were one more thing that bothered me, we appear to be
>changing the rules that applies to the REVERSE_LSP Object. Before it
>was "optional" now it becomes "mandatory".
>
>The authors says that they have not deployed any implementation that
>follows the old rule. This is fine, but are we sure that no one else
>has? Do we need to take steps to make sure that this is not the case?


<RG> Your point is fair. However, the initiating node of such
implementation needs to somehow tell the third party remote node to either
trigger or not trigger the reverse LSP. As this was not specified in the
draft, such implementation may not be interoperable, IMO.


Thanks,
Rakesh


>/Loa
>
>
>
>
>On 2015-02-21 00:33, Lou Berger wrote:
>> Loa has a fair point.  If the draft is ambiguous on this point, it
>> should be clarified.
>>
>> Loa,
>>      Can you take a look at the latest rev of the draft and let us know
>> if you think is sufficiently clear?
>>
>> Thanks,
>> Lou
>>
>> On 2/20/2015 10:39 AM, Rakesh Gandhi (rgandhi) wrote:
>>> Hi Loa,
>>>
>>> This is for the associated bidirectional LSPs when using single sided
>>> provisioning.
>>> Specially, when the initiating node is inserting the ASSOCIATION Object
>>> with Association Type "Single Sided Associated Bidirectional LSP" to
>>> trigger creation of reverse LSP on the egress node.
>>>
>>> Thanks,
>>> Rakesh
>>>
>>>
>>> On 2015-02-20 8:30 AM, "Loa Andersson" <loa@pi.nu> wrote:
>>>
>>>> Lou,
>>>>
>>>> There are lots of "forward LSPs" out there, what is the criteria more
>>>> in detail where the REVERSE_LSP Object will be required if we choose
>>>> option 1?
>>>>
>>>> /Loa
>>>>
>>>> On 2015-02-18 10:09, Lou Berger wrote:
>>>>> Some options:
>>>>> a) Always require a  REVERSE_LSP Object in the forward LSP
>>>> --
>>>>
>>>>
>>>> Loa Andersson                        email: loa@mail01.huawei.com
>>>> Senior MPLS Expert                          loa@pi.nu
>>>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>>>
>>>> _______________________________________________
>>>> Teas mailing list
>>>> Teas@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/teas
>>> _______________________________________________
>>> Teas mailing list
>>> Teas@ietf.org
>>> https://www.ietf.org/mailman/listinfo/teas
>>>
>>
>>
>
>--=20
>
>
>Loa Andersson                        email: loa@mail01.huawei.com
>Senior MPLS Expert                          loa@pi.nu
>Huawei Technologies (consultant)     phone: +46 739 81 21 64


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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: "lizho.jin@gmail.com" <lizho.jin@gmail.com>, teas <teas@ietf.org>, draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp <draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp@tools.ietf.org>
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--_000_D10E0167506F4rgandhiciscocom_--


From nobody Sat Feb 21 12:03:00 2015
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Date: Sat, 21 Feb 2015 15:02:42 -0500
From: Lou Berger <lberger@labn.net>
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Cc: Matt Hartley <mhartley@cisco.com>, "teas-chairs@ietf.org" <teas-chairs@ietf.org>
Subject: [Teas] IETF 92 TEAS agenda requests
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Dear TEAS,

The IETF92 draft agenda is out.  We're tentatively scheduled for
Thursday Morning Session I -- note this may change.

Please send your agenda requests to the addresses cc'ed above by end of
day March 8th. Include draft name, and who will be presenting. A draft
agenda will be uploaded on the 9th.

WG Draft authors are expected to present if there are open issues to
discuss, or to send status to the list  *1 week* prior to the WG meeting
if not presenting. Status includes review of: any recent changes, any
open discussions or issues, and planned next steps.

Slides will be due on Sunday March 22, 2015. (Send slides to the
addresses cc'ed above, but not the WG.)

Some important date:

2015-02-25 (Wednesday): Cut-off date for requests to reschedule Working
Group and BOF meetings UTC 23:59.
2015-02-27 (Friday): Final agenda to be published.
2015-03-09 (Monday): Internet Draft submission cut-off (for all drafts,
including -00) by UTC 23:59, upload using IETF ID Submission Tool.
2015-03-09 (Monday): Draft Working Group agendas due by UTC 23:59,
upload using IETF Meeting Materials Management Tool.
2015-03-13 (Friday): Early Bird registration and payment cut-off at UTC
23:59.
2015-03-16 (Monday): Revised Working Group agendas due by UTC 23:59,
upload using IETF Meeting Materials Management Tool.
2015-03-16 (Monday): Registration cancellation cut-off at UTC 23:59.
2015-03-20 (Friday): Final Pre-Registration and Pre-Payment cut-off at
17:00 local meeting time.
2015-03-22 - 2015-03-27: IETF 92 in Dallas, TX, USA

Thanks,
Lou, Deborah and Matt


From nobody Sun Feb 22 18:26:23 2015
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Date: Mon, 23 Feb 2015 10:26:29 +0800
From: "lizho.jin@gmail.com" <lizho.jin@gmail.com>
To: rgandhi <rgandhi@cisco.com>, teas <teas@ietf.org>,  draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp <draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp@tools.ietf.org>
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Subject: Re: [Teas] RtgDir Review of draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-02
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	charset="utf-8"
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charse=
t=3Dutf-8"><style>body { line-height: 1.5; }blockquote { margin-top: 0px; =
margin-bottom: 0px; margin-left: 0.5em; }div.foxdiv20150223095648024957 { =
word-wrap: break-word; -webkit-line-break: after-white-space; color: rgb(0=
, 0, 0); font-size: 14px; font-family: CALIBRI, sans-serif; }body { font-s=
ize: 10.5pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); line-hei=
ght: 1.5; }</style></head><body>=0A<div><span></span><span id=3D"OLK_SRC_B=
ODY_SECTION" style=3D"font-family: CALIBRI, sans-serif;"><blockquote><div =
class=3D"FoxDiv20150219174658733298"><div style=3D"line-height: normal;"><=
span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rg=
b(0,0,0);background-color:rgba(0,font-weight:normal;font-style:normal;text=
-decoration:none;?=3D""><span style=3D"line-height: 21px;">Hi Rakesh,</spa=
n></span></div><div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=
=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0,0);background-=
color:rgba(0,font-weight:normal;font-style:normal;text-decoration:none;?=
=3D""><span style=3D"line-height: 21px;">Thanks for the quick reply. I rea=
d v05, and OK for the changes.&nbsp;</span></span><span style=3D"font-size=
: 10.5pt; line-height: 1.5; background-color: window;">One minor comments =
below, depends on you to change or not.</span></div><div style=3D"line-hei=
ght: normal;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-siz=
e:14px;color:rgb(0,0,0);background-color:rgba(0,font-weight:normal;font-st=
yle:normal;text-decoration:none;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=
=9B=85=E9=BB=91"><br></font></span></div><div style=3D"line-height: normal=
;"><span =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;colo=
r:rgb(0,0,0);background-color:rgba(0,font-weight:normal;font-style:normal;=
text-decoration:none;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91">Section 5. Processing Rules&nbsp;<br>In general, the processing ru=
les for the ASSOCIATION Object are as&nbsp;<br>specified in [RFC4872] and =
Extended ASSOCIATION Object are specified&nbsp;<br>in [RFC6780]. Following=
 sections describe the rules for processing&nbsp;<br>(Extended) ASSOCIATIO=
N and REVERSE_LSP objects for associated&nbsp;<br>bidirectional LSPs.&nbsp=
;<br>[Lizhong]: across the draft, it is not explicitly saying what is the =
processing&nbsp;</font></span></div><div style=3D"line-height: normal;"><s=
pan =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb=
(0,0,0);background-color:rgba(0,font-weight:normal;font-style:normal;text-=
decoration:none;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"=
>rules for independent provisioning. It is better to say it here or other =
place.<br></font></span></div></div></blockquote></span><span style=3D"fon=
t-family: CALIBRI, sans-serif;"></span><div style=3D"font-family: CALIBRI,=
 sans-serif;"><br></div><div style=3D"font-family: CALIBRI, sans-serif;">&=
lt;RG&gt; There are related changes in the latest version of the draft, es=
pecially with REVERSE_LSP Object usage. Please advise if like to see anyth=
ing specific.</div></div><div style=3D"font-family: CALIBRI, sans-serif;">=
<br></div><div style=3D"font-family: CALIBRI, sans-serif;">[Lizhong] I lik=
e the explict description, like the following.&nbsp;</div><div style=3D"fo=
nt-family: CALIBRI, sans-serif;"><span style=3D"font-family: =E5=BE=AE=E8=
=BD=AF=E9=9B=85=E9=BB=91; line-height: normal;">Following sections describ=
e the rules for processing</span><span style=3D"font-family: =E5=BE=AE=E8=
=BD=AF=E9=9B=85=E9=BB=91; line-height: normal;">&nbsp;</span><br style=3D"=
font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; line-height: normal;"><=
span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; line-heig=
ht: normal;">(Extended) ASSOCIATION objects for both&nbsp;</span><span sty=
le=3D"background-color: rgba(0, 0, 0, 0); font-family: =E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91; line-height: 1.5;">Single Sided and&nbsp;</span></div>=
<div style=3D"font-family: CALIBRI, sans-serif;"><span style=3D"background=
-color: rgba(0, 0, 0, 0); font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=
=91; line-height: 1.5;">Double Sided Provisioned LSP,&nbsp;</span><span st=
yle=3D"background-color: window; font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=
=E9=BB=91; line-height: normal;">and REVERSE_LSP objects&nbsp;</span></div=
><div style=3D"font-family: CALIBRI, sans-serif;"><span style=3D"backgroun=
d-color: window; font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; line-h=
eight: normal;">only for&nbsp;</span><span style=3D"font-family: =E5=BE=AE=
=E8=BD=AF=E9=9B=85=E9=BB=91;">Single Sided Provisioned&nbsp;</span><span s=
tyle=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; line-height: no=
rmal; background-color: window;">LSP.</span></div>=0A<div><br></div><hr st=
yle=3D"WIDTH: 210px; HEIGHT: 1px" color=3D"#b5c4df" size=3D"1" align=3D"le=
ft">=0A<div><span><div style=3D"MARGIN: 10px; FONT-FAMILY: verdana; FONT-S=
IZE: 10pt"><div>Regards</div><div>Lizhong</div></div></span></div>=0A<bloc=
kquote style=3D"margin-top: 0px; margin-bottom: 0px; margin-left: 0.5em;">=
<div>&nbsp;</div><div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;=
padding:3.0pt 0cm 0cm 0cm"><div style=3D"PADDING-RIGHT: 8px; PADDING-LEFT:=
 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efefe=
f; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b>&nbsp;<a href=
=3D"mailto:rgandhi@cisco.com">Rakesh Gandhi (rgandhi)</a></div><div><b>Dat=
e:</b>&nbsp;2015-02-21&nbsp;23:08</div><div><b>To:</b>&nbsp;<a href=3D"mai=
lto:lizho.jin@gmail.com">lizho.jin@gmail.com</a>; <a href=3D"mailto:teas@i=
etf.org">teas</a>; <a href=3D"mailto:draft-ietf-teas-mpls-tp-rsvpte-ext-as=
sociated-lsp@tools.ietf.org">draft-ietf-teas-mpls-tp-rsvpte-ext-associated=
-lsp</a></div><div><b>CC:</b>&nbsp;<a href=3D"mailto:rtg-dir@ietf.org">rtg=
-dir</a>; <a href=3D"mailto:rtg-ads@tools.ietf.org">rtg-ads</a></div><div>=
<b>Subject:</b>&nbsp;Re: [Teas] RtgDir Review of draft-ietf-teas-mpls-tp-r=
svpte-ext-associated-lsp-02</div></div></div><div><div class=3D"FoxDiv2015=
0223095648024957">=0A<div>Hi Lizhong,</div>=0A<div><br>=0A</div>=0A<div>Th=
ank you for reviewing the document and providing your comments.</div>=0A<d=
iv><br>=0A</div>=0A<div>Please see inline .. &lt;RG&gt; ..</div>=0A<div><b=
r>=0A</div>=0A<span id=3D"OLK_SRC_BODY_SECTION">=0A<div style=3D"font-fami=
ly:Calibri; font-size:11pt; text-align:left; color:black; BORDER-BOTTOM: m=
edium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0=
in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: mediu=
m none; PADDING-TOP: 3pt">=0A<span style=3D"font-weight:bold">From: </span=
>"Lizhong com&gt;" &lt;<a href=3D"mailto:lizho.jin@gmail.com">lizho.jin@gm=
ail.com</a>&gt;<br>=0A<span style=3D"font-weight:bold">Date: </span>Thursd=
ay, 19 February, 2015 4:49 AM<br>=0A<span style=3D"font-weight:bold">To: <=
/span>teas &lt;<a href=3D"mailto:teas@ietf.org">teas@ietf.org</a>&gt;, dra=
ft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp &lt;<a href=3D"mailto:draft=
-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp@tools.ietf.org">draft-ietf-te=
as-mpls-tp-rsvpte-ext-associated-lsp@tools.ietf.org</a>&gt;<br>=0A<span st=
yle=3D"font-weight:bold">Cc: </span>rtg-dir &lt;<a href=3D"mailto:rtg-dir@=
ietf.org">rtg-dir@ietf.org</a>&gt;, teas &lt;<a href=3D"mailto:teas@ietf.o=
rg">teas@ietf.org</a>&gt;, rtg-ads &lt;<a href=3D"mailto:rtg-ads@tools.iet=
f.org">rtg-ads@tools.ietf.org</a>&gt;<br>=0A<span style=3D"font-weight:bol=
d">Subject: </span>Re: [Teas] RtgDir Review of draft-ietf-teas-mpls-tp-rsv=
pte-ext-associated-lsp-02<br>=0A</div>=0A<div><br>=0A</div>=0A<div>=0A<div=
>=0A<div><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><span></span>=
Sorry, I missed one more comment below:</font></div>=0A<div><font face=3D"=
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Section 7&nbsp;<span style=3D"font-s=
ize: 10.5pt; line-height: 1.5; background-color: window;">Security Conside=
rations</span></font></div>=0A<div><span timesnewroman??;font-size:14px;co=
lor:rgb(0,0,0);background-color:rgba(0,font-weight:normal;font-style:norma=
l;text-decoration:none;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91">[Lizhong] the single side provisioning mode will allow one node to=
 trigger another=0A<br>=0Anode to setup LSP. This will introduce some secu=
rity issue for the remote node. <br>=0ASome administrative police may be i=
ntroduced to allow/deny others to trigger LSP setup.</font></span></div>=
=0A</div>=0A</div>=0A</span>=0A<div><br>=0A</div>=0A<div>&lt;RG&gt; Agree,=
 updated in the latest revision (05).</div>=0A<span id=3D"OLK_SRC_BODY_SEC=
TION">=0A<div>=0A<div>=0A<div><br>=0A</div>=0A<hr style=3D"WIDTH: 210px; H=
EIGHT: 1px" color=3D"#b5c4df" size=3D"1" align=3D"left">=0A<div><span>=0A<=
div style=3D"MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt">=0A<div>=
Regards</div>=0A<div>Lizhong</div>=0A</div>=0A</span></div>=0A<blockquote =
style=3D"margin-top: 0px; margin-bottom: 0px; margin-left: 0.5em;">=0A<div=
>&nbsp;</div>=0A<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;p=
adding:3.0pt 0cm 0cm 0cm">=0A<div style=3D"PADDING-RIGHT: 8px; PADDING-LEF=
T: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efe=
fef; PADDING-BOTTOM: 8px; PADDING-TOP: 8px">=0A<div><b>From:</b>&nbsp;<a h=
ref=3D"mailto:lizho.jin@gmail.com">lizho.jin@gmail.com</a></div>=0A<div><b=
>Date:</b>&nbsp;2015-02-19&nbsp;17:21</div>=0A<div><b>To:</b>&nbsp;<a href=
=3D"mailto:teas@ietf.org">teas</a>; <a href=3D"mailto:draft-ietf-teas-mpls=
-tp-rsvpte-ext-associated-lsp@tools.ietf.org">=0Adraft-ietf-teas-mpls-tp-r=
svpte-ext-associated-lsp</a></div>=0A<div><b>CC:</b>&nbsp;<a href=3D"mailt=
o:rtg-dir@ietf.org">rtg-dir@ietf.org</a>; <a href=3D"mailto:rtg-ads@tools.=
ietf.org">=0Artg-ads</a>; <a href=3D"mailto:teas@ietf.org">teas</a></div>=
=0A<div><b>Subject:</b>&nbsp;RtgDir Review of draft-ietf-teas-mpls-tp-rsvp=
te-ext-associated-lsp-02</div>=0A</div>=0A</div>=0A<div>=0A<div class=3D"F=
oxDiv20150219174658733298">=0A<div><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91"><span></span></font>=0A<div style=3D"line-height: normal;"><=
font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Hello</font></div>=0A<d=
iv style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91">&nbsp;</font></div>=0A<div style=3D"line-height: normal;"><f=
ont face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">I have been selected as =
the Routing Directorate reviewer for this draft.</font></div>=0A<div style=
=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=
=91">The Routing Directorate seeks to review all routing or routing-relate=
d</font></div>=0A<div style=3D"line-height: normal;"><font face=3D"=E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91">drafts as they pass through IETF last call=
 and IESG review, and</font></div>=0A<div style=3D"line-height: normal;"><=
font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">sometimes on special re=
quest. The purpose of the review is to provide</font></div>=0A<div style=
=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=
=91">assistance to the Routing ADs. For more information about the Routing=
</font></div>=0A<div style=3D"line-height: normal;"><font face=3D"=E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Directorate, please see =E2=80=8B</font></=
div>=0A<div style=3D"line-height: normal;"><a href=3D"http://trac.tools.ie=
tf.org/area/rtg/trac/wiki/RtgDir" style=3D"text-decoration: none !importan=
t;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">http://trac.tools.=
ietf.org/area/rtg/trac/wiki/RtgDir</font></a></div>=0A<div style=3D"line-h=
eight: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">&nbsp;=
</font></div>=0A<div style=3D"line-height: normal;"><font face=3D"=E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Although these comments are primarily for =
the use of the Routing ADs, it</font></div>=0A<div style=3D"line-height: n=
ormal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">would be helpf=
ul if you could consider them along with any other IETF</font></div>=0A<di=
v style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=
=E9=BB=91">Last Call comments that you receive, and strive to resolve them=
 through</font></div>=0A<div style=3D"line-height: normal;"><font face=3D"=
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">discussion or by updating the draft.=
</font></div>=0A<div style=3D"line-height: normal;"><font face=3D"=E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91">&nbsp;</font></div>=0A<div style=3D"line-h=
eight: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Docume=
nt:&nbsp;<span style=3D"background-color: rgba(0, 0, 0, 0); line-height: 1=
.5;">draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-02</span></font></d=
iv>=0A<div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91">Reviewer: Lizhong Jin</font></div>=0A<div style=3D"lin=
e-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Rev=
iew Date: 19 February 2015</font></div>=0A<div style=3D"line-height: norma=
l;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">IETF LC End Date: =
N/A</font></div>=0A<div style=3D"line-height: normal;"><font face=3D"=E5=
=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Intended Status: Standard Track</font><=
/div>=0A<div style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=
=AF=E9=9B=85=E9=BB=91">&nbsp;</font></div>=0A<div style=3D"line-height: no=
rmal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Summary:</font>=
</div>=0A<div style=3D"line-height: normal;"><span style=3D"font-family: =
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; font-size: 10.5pt; background-color:=
 window;">The document is basically ready for publication. I found some mi=
nor&nbsp;</span><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91; font-size: 10.5pt; background-color: window;">issues,=0A and hope<=
/span></div>=0A<div style=3D"line-height: normal;"><span style=3D"backgrou=
nd-color: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">to =
see the clarification.</font></span></div>=0A</div>=0A<div style=3D"line-h=
eight: normal;"><span style=3D"background-color: window;"><font face=3D"=
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br>=0A</font></span></div>=0A<div s=
tyle=3D"line-height: normal;"><span style=3D"background-color: window;"><f=
ont face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Commnets:</font></span><=
/div>=0A<div style=3D"line-height: normal;"><span style=3D"font-family: =
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91;">I paticipate the initial discussion=
 of this draft. I am lucky to review&nbsp;</span><span style=3D"font-famil=
y: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; font-size: 10.5pt; background-col=
or: window;">it again. Overall, the<br>=0Aprocessing rule of independent p=
rovisioning hope to be explicitly&nbsp;</span><span style=3D"font-family: =
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; font-size: 10.5pt; background-color:=
 window;">described.&nbsp;</span></div>=0A<div style=3D"line-height: norma=
l;"><span style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; font=
-size: 10.5pt; background-color: window;">No major issues, some minor issu=
es need to be clarified.</span></div>=0A</div>=0A</div>=0A</blockquote>=0A=
</div>=0A</div>=0A</span>=0A<div><br>=0A</div>=0A<div>&lt;RG&gt; Great, th=
anks.</div>=0A<span id=3D"OLK_SRC_BODY_SECTION">=0A<div>=0A<div>=0A<blockq=
uote style=3D"margin-top: 0px; margin-bottom: 0px; margin-left: 0.5em;">=
=0A<div>=0A<div class=3D"FoxDiv20150219174658733298">=0A<div style=3D"line=
-height: normal;"><span style=3D"background-color: window;"><font face=3D"=
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br>=0A</font></span></div>=0A<div s=
tyle=3D"line-height: normal;"><span style=3D"background-color: window;"><f=
ont face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Major issues: No</font><=
/span></div>=0A<div style=3D"line-height: normal;"><span style=3D"backgrou=
nd-color: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br=
>=0A</font></span></div>=0A<div style=3D"line-height: normal;"><span style=
=3D"background-color: window;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=
=E9=BB=91">Minor issues:</font></span></div>=0A<div style=3D"line-height: =
normal;"><span style=3D"background-color: window;"><font face=3D"=E5=BE=AE=
=E8=BD=AF=E9=9B=85=E9=BB=91">Section 3.2</font></span></div>=0A<div style=
=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=
=91">In each of the situations described above, both provisioning models=
=0A<br>=0Aare applicable. <br>=0A[Lizhong]: for the second situations abov=
e, how could you let the reverse LSP <br>=0Ato be existed before the forwa=
rd LSP for single side provisioning? Wouldn't the&nbsp;</font></div>=0A<di=
v style=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=
=E9=BB=91">reverse LSP trigger another&nbsp;</font><span style=3D"font-fam=
ily: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91; font-size: 10.5pt; background-c=
olor: window;">reverse LSP?</span></div>=0A</div>=0A</div>=0A</blockquote>=
=0A</div>=0A</div>=0A</span>=0A<div><br>=0A</div>=0A<div>&lt;RG&gt; &nbsp;=
Fixed.</div>=0A<span id=3D"OLK_SRC_BODY_SECTION">=0A<div>=0A<div>=0A<block=
quote style=3D"margin-top: 0px; margin-bottom: 0px; margin-left: 0.5em;">=
=0A<div>=0A<div class=3D"FoxDiv20150219174658733298">=0A<div style=3D"line=
-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br>=
=0A</font></div>=0A<div style=3D"line-height: normal;"><span =E5=BE=AE=E8=
=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0,0);backgrou=
nd-color:rgba(0,font-weight:normal;font-style:normal;text-decoration:none;=
?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Section 3.2.1.&=
nbsp;<br>=0AFor the single sided provisioning model, creation of reverse L=
SP1 is <br>=0Atriggered by LSP2 or creation of reverse LSP2 is triggered b=
y LSP1. <br>=0AWhen creation of reverse LSP2 is triggered by LSP1, LSP1 is=
 <br>=0Aprovisioned first (or refreshed if LSP1 already exists) at node A.=
 <br>=0A[Lizhong]: LSP1 and LSP2 is in Firgure1? Better to explicitly say =
that in</font></span></div>=0A<div style=3D"line-height: normal;"><span =
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0=
,0);background-color:rgba(0,font-weight:normal;font-style:normal;text-deco=
ration:none;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">the=
 document.</font></span></div>=0A</div>=0A</div>=0A</blockquote>=0A</div>=
=0A</div>=0A</span>=0A<div><br>=0A</div>=0A<div>=0A<div>&lt;RG&gt; &nbsp;F=
ixed.</div>=0A<span id=3D"OLK_SRC_BODY_SECTION">=0A<blockquote style=3D"ma=
rgin-top: 0px; margin-bottom: 0px; margin-left: 0.5em;">=0A<div class=3D"F=
oxDiv20150219174658733298"></div>=0A</blockquote>=0A</span></div>=0A<span =
id=3D"OLK_SRC_BODY_SECTION">=0A<div>=0A<div>=0A<blockquote style=3D"margin=
-top: 0px; margin-bottom: 0px; margin-left: 0.5em;">=0A<div>=0A<div class=
=3D"FoxDiv20150219174658733298">=0A<div style=3D"line-height: normal;"><sp=
an =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(=
0,0,0);background-color:rgba(0,font-weight:normal;font-style:normal;text-d=
ecoration:none;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">=
<br>=0A</font></span></div>=0A<div style=3D"line-height: normal;"><span =
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0=
,0);background-color:rgba(0,font-weight:normal;font-style:normal;text-deco=
ration:none;?=3D""><span style=3D"background-color: rgba(0, 0, 0, 0);"><fo=
nt face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">&nbsp;A similar procedure=
=0A is used if LSP2 is provisioned first at node B <br>=0Aand the creation=
 of reverse LSP1 at node A is either triggered by <br>=0ALSP2 or the rever=
se LSP1 existed. In all three scenarios, the two <br>=0Aunidirectional LSP=
s are bound together to form an associated <br>=0Abidirectional LSP based =
on identical (Extended) ASSOCIATION Objects <br>=0Ain the two LSPs' Path m=
essages. <br>=0A[Lizhong]: I doubt if the following scenario is realistic =
in Single Sided Provisioning.=0A<br>=0ALSP2 is provisioned first, reverse =
LSP1 at node A is existed before LSP2. <br>=0AThe what is the Association =
Type in reverse LSP1? Before LSP2, will the reverse&nbsp;</font></span></s=
pan></div>=0A<div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0,0);background-col=
or:rgba(0,font-weight:normal;font-style:normal;text-decoration:none;?=3D""=
><span style=3D"background-color: rgba(0, 0, 0, 0);"><font face=3D"=E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91">LSP1 trigger another=0A LSP?&nbsp;<br>=0A<=
/font></span></span></div>=0A</div>=0A</div>=0A</blockquote>=0A</div>=0A</=
div>=0A</span>=0A<div><br>=0A</div>=0A<div>=0A<div>&lt;RG&gt; &nbsp;Fixed.=
</div>=0A<span id=3D"OLK_SRC_BODY_SECTION">=0A<blockquote style=3D"margin-=
top: 0px; margin-bottom: 0px; margin-left: 0.5em;">=0A<div class=3D"FoxDiv=
20150219174658733298"></div>=0A</blockquote>=0A</span></div>=0A<span id=3D=
"OLK_SRC_BODY_SECTION">=0A<div>=0A<div>=0A<blockquote style=3D"margin-top:=
 0px; margin-bottom: 0px; margin-left: 0.5em;">=0A<div>=0A<div class=3D"Fo=
xDiv20150219174658733298">=0A<div style=3D"line-height: normal;"><span =E5=
=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0,0)=
;background-color:rgba(0,font-weight:normal;font-style:normal;text-decorat=
ion:none;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br>=
=0A</font></span></div>=0A<div style=3D"line-height: normal;"><span =E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0,0);ba=
ckground-color:rgba(0,font-weight:normal;font-style:normal;text-decoration=
:none;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Section 5=
. Processing Rules=0A<br>=0AIn general, the processing rules for the ASSOC=
IATION Object are as <br>=0Aspecified in [RFC4872] and Extended ASSOCIATIO=
N Object are specified <br>=0Ain [RFC6780]. Following sections describe th=
e rules for processing <br>=0A(Extended) ASSOCIATION and REVERSE_LSP objec=
ts for associated <br>=0Abidirectional LSPs. <br>=0A[Lizhong]: across the =
draft, it is not explicitly saying what is the processing&nbsp;</font></sp=
an></div>=0A<div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0,0);background-col=
or:rgba(0,font-weight:normal;font-style:normal;text-decoration:none;?=3D""=
><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">rules for independent=
 provisioning. It is better to say it here or=0A other place.<br>=0A</font=
></span></div>=0A</div>=0A</div>=0A</blockquote>=0A</div>=0A</div>=0A</spa=
n>=0A<div><br>=0A</div>=0A<div>&lt;RG&gt; There are related changes in the=
 latest version of the draft, especially with REVERSE_LSP Object usage. Pl=
ease advise if like to see anything specific.</div>=0A<span id=3D"OLK_SRC_=
BODY_SECTION">=0A<div>=0A<div>=0A<blockquote style=3D"margin-top: 0px; mar=
gin-bottom: 0px; margin-left: 0.5em;">=0A<div>=0A<div class=3D"FoxDiv20150=
219174658733298">=0A<div style=3D"line-height: normal;"><span =E5=BE=AE=E8=
=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0,0);backgrou=
nd-color:rgba(0,font-weight:normal;font-style:normal;text-decoration:none;=
?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br>=0A</font><=
/span></div>=0A<div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=
=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0,0);background-=
color:rgba(0,font-weight:normal;font-style:normal;text-decoration:none;?=
=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Section 5.1</fon=
t></span></div>=0A<div style=3D"line-height: normal;"><span =E5=BE=AE=E8=
=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0,0);backgrou=
nd-color:rgba(0,font-weight:normal;font-style:normal;text-decoration:none;=
?=3D""><span style=3D"background-color: rgba(0, 0, 0, 0);"><font face=3D"=
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">(Extended) ASSOCIATION=0A Objects wi=
th both single sided and double sided <br>=0AAssociation Types MUST NOT be=
 added in the same Path message. <br>=0A[Lizhong]: what if two types exist=
 together? Only use the first one?</font></span></span></div>=0A</div>=0A<=
/div>=0A</blockquote>=0A</div>=0A</div>=0A</span>=0A<div><br>=0A</div>=0A<=
div>&lt;RG&gt; It says MUST NOT :)</div>=0A<span id=3D"OLK_SRC_BODY_SECTIO=
N">=0A<div>=0A<div>=0A<blockquote style=3D"margin-top: 0px; margin-bottom:=
 0px; margin-left: 0.5em;">=0A<div>=0A<div class=3D"FoxDiv2015021917465873=
3298">=0A<div style=3D"line-height: normal;"><span =E5=BE=AE=E8=BD=AF=E9=
=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0,0);background-color:=
rgba(0,font-weight:normal;font-style:normal;text-decoration:none;?=3D""><s=
pan style=3D"background-color: rgba(0, 0, 0, 0);"><font face=3D"=E5=BE=AE=
=E8=BD=AF=E9=9B=85=E9=BB=91"><br>=0A</font></span></span></div>=0A<div sty=
le=3D"line-height: normal;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91">Section 5.2</font></div>=0A<div style=3D"line-height: normal;"><sp=
an style=3D"background-color: rgba(0, 0, 0, 0);"><font face=3D"=E5=BE=AE=
=E8=BD=AF=E9=9B=85=E9=BB=91">The REVERSE_LSP Object MUST NOT be included i=
n a REVERSE_LSP Object.=0A<br>=0A[Lizhong]: typo here?</font></span></div>=
=0A</div>=0A</div>=0A</blockquote>=0A</div>=0A</div>=0A</span>=0A<div><br>=
=0A</div>=0A<div>&lt;RG&gt; The document does not allow nested REVERSE_LSP=
 Objects.</div>=0A<span id=3D"OLK_SRC_BODY_SECTION">=0A<div>=0A<div>=0A<bl=
ockquote style=3D"margin-top: 0px; margin-bottom: 0px; margin-left: 0.5em;=
">=0A<div>=0A<div class=3D"FoxDiv20150219174658733298">=0A<div style=3D"li=
ne-height: normal;"><span style=3D"background-color: rgba(0, 0, 0, 0);"><f=
ont face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br>=0A</font></span></d=
iv>=0A<div style=3D"line-height: normal;"><span style=3D"background-color:=
 rgba(0, 0, 0, 0);"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">Se=
ction 5.3</font></span></div>=0A<div style=3D"line-height: normal;"><span =
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb(0,0=
,0);background-color:rgba(0,font-weight:normal;font-style:normal;text-deco=
ration:none;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">In =
particular, any object that was copied as part of initial Path=0A message =
creation MUST</font></span></div>=0A<div style=3D"line-height: normal;"><s=
pan =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91,tahoma??;font-size:14px;color:rgb=
(0,0,0);background-color:rgba(0,font-weight:normal;font-style:normal;text-=
decoration:none;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"=
>be copied when modified.=0A<br>=0A[Lizhong]: not understood "copied when =
modified", is it "copied after modified"?</font></span></div>=0A</div>=0A<=
/div>=0A</blockquote>=0A</div>=0A</div>=0A</span>=0A<div><br>=0A</div>=0A<=
div>&lt;RG&gt; Fixed.</div>=0A<span id=3D"OLK_SRC_BODY_SECTION">=0A<div>=
=0A<div>=0A<blockquote style=3D"margin-top: 0px; margin-bottom: 0px; margi=
n-left: 0.5em;">=0A<div>=0A<div class=3D"FoxDiv20150219174658733298">=0A<d=
iv style=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br>=0A<=
/font></div>=0A<div style=3D""><span timesnewroman??;font-size:14px;color:=
rgb(0,0,0);background-color:rgba(0,font-weight:normal;font-style:normal;te=
xt-decoration:none;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=
=91">In both cases, when the egress node receives a PathTear message the=
=0A<br>=0Anode MUST remove the associated reverse LSP using Standard PathT=
ear <br>=0Amessage processing. Tear down of the reverse LSP for other reas=
ons <br>=0ASHOULD NOT trigger removal of the initiating LSP, but SHOULD re=
sult <br>=0Ain the egress node sending a PathErr with Error code "Admissio=
n <br>=0AControl Failure (01) [RFC2205]" and Sub-code "Reverse LSP Failure=
" <br>=0Adefined in this document. <br>=0A[Lizhong]: the above description=
 is not accurate. What if the egress node have</font></span></div>=0A<div =
style=3D""><span timesnewroman??;font-size:14px;color:rgb(0,0,0);backgroun=
d-color:rgba(0,font-weight:normal;font-style:normal;text-decoration:none;?=
=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">forward LSP down=
 because of local link down? In that case, it will not receive</font></spa=
n></div>=0A<div style=3D""><span timesnewroman??;font-size:14px;color:rgb(=
0,0,0);background-color:rgba(0,font-weight:normal;font-style:normal;text-d=
ecoration:none;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91">=
PathTear, it is still need to tear down the reverse LSP? It should say, wh=
enever&nbsp;</font></span></div>=0A<div style=3D""><span timesnewroman??;f=
ont-size:14px;color:rgb(0,0,0);background-color:rgba(0,font-weight:normal;=
font-style:normal;text-decoration:none;?=3D""><font face=3D"=E5=BE=AE=E8=
=BD=AF=E9=9B=85=E9=BB=91">the forward LSP is down, the reverse LSP SHOULD =
be removed.&nbsp;<br>=0A</font></span></div>=0A</div>=0A</div>=0A</blockqu=
ote>=0A</div>=0A</div>=0A</span>=0A<div><br>=0A</div>=0A<div>&lt;RG&gt; Fi=
xed.</div>=0A<div><br>=0A</div>=0A<div>Many thanks again,</div>=0A<div>Rak=
esh</div>=0A<div><br>=0A</div>=0A<span id=3D"OLK_SRC_BODY_SECTION">=0A<div=
>=0A<div>=0A<blockquote style=3D"margin-top: 0px; margin-bottom: 0px; marg=
in-left: 0.5em;">=0A<div>=0A<div class=3D"FoxDiv20150219174658733298">=0A<=
div style=3D""><span timesnewroman??;font-size:14px;color:rgb(0,0,0);backg=
round-color:rgba(0,font-weight:normal;font-style:normal;text-decoration:no=
ne;?=3D""><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><br>=0A</fon=
t></span></div>=0A<div style=3D""></div>=0A<div><span>=0A<div style=3D"mar=
gin: 10px; font-size: 10pt;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91">=0A<div style=3D"font-size: 14px;">Regards</div>=0A<div style=3D"f=
ont-size: 14px;">Lizhong</div>=0A</font></div>=0A</span></div>=0A</div>=0A=
</div>=0A</blockquote>=0A</div>=0A</div>=0A</span>=0A</div></div></blockqu=
ote>=0A</body></html>
------=_001_NextPart038508345558_=------



From nobody Mon Feb 23 02:10:00 2015
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From: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>
To: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>, Loa Andersson <loa@pi.nu>,  Lou Berger <lberger@labn.net>, "teas@ietf.org" <teas@ietf.org>
Thread-Topic: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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Subject: Re: [Teas] A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp
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I tend to agree. I think option (a) is reasonable.=20

BR
Daniele


> -----Original Message-----
> From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of Rakesh Gandhi
> (rgandhi)
> Sent: venerd=EC 20 febbraio 2015 16:40
> To: Loa Andersson; Lou Berger; teas@ietf.org
> Subject: Re: [Teas] A clarification request for draft-ietf-teas-mpls-tp-r=
svpte-
> ext-associated-lsp
>=20
> Hi Loa,
>=20
> This is for the associated bidirectional LSPs when using single sided
> provisioning.
> Specially, when the initiating node is inserting the ASSOCIATION Object w=
ith
> Association Type "Single Sided Associated Bidirectional LSP" to trigger
> creation of reverse LSP on the egress node.
>=20
> Thanks,
> Rakesh
>=20
>=20
> On 2015-02-20 8:30 AM, "Loa Andersson" <loa@pi.nu> wrote:
>=20
> >Lou,
> >
> >There are lots of "forward LSPs" out there, what is the criteria more
> >in detail where the REVERSE_LSP Object will be required if we choose
> >option 1?
> >
> >/Loa
> >
> >On 2015-02-18 10:09, Lou Berger wrote:
> >> Some options:
> >> a) Always require a  REVERSE_LSP Object in the forward LSP
> >
> >--
> >
> >
> >Loa Andersson                        email: loa@mail01.huawei.com
> >Senior MPLS Expert                          loa@pi.nu
> >Huawei Technologies (consultant)     phone: +46 739 81 21 64
> >
> >_______________________________________________
> >Teas mailing list
> >Teas@ietf.org
> >https://www.ietf.org/mailman/listinfo/teas
>=20
> _______________________________________________
> Teas mailing list
> Teas@ietf.org
> https://www.ietf.org/mailman/listinfo/teas


From nobody Mon Feb 23 05:19:00 2015
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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: "lizho.jin@gmail.com" <lizho.jin@gmail.com>, teas <teas@ietf.org>, draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp <draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp@tools.ietf.org>
Thread-Topic: [Teas] RtgDir Review of draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-02
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Date: Mon, 23 Feb 2015 13:18:53 +0000
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Subject: Re: [Teas] RtgDir Review of draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-02
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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 Traffic Engineering Architecture and Signaling Working Group of the IETF.

        Title           : RSVP-TE Extensions for Associated Bidirectional LSPs
        Authors         : Fei Zhang
                          Ruiquan Jing
                          Rakesh Gandhi
	Filename        : draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-06.txt
	Pages           : 20
	Date            : 2015-02-24

Abstract:
   This document describes Resource reSerVation Protocol (RSVP)
   extensions to bind two point-to-point unidirectional Label Switched
   Paths (LSPs) into an associated bidirectional LSP.  The association
   is achieved by defining new Association Types for use in ASSOCIATION
   and in Extended ASSOCIATION Objects.  One of these types enables
   independent provisioning of the associated bidirectional LSPs on both
   sides, while the other enables single sided provisioning.  The
   REVERSE_LSP Object is also defined to enable a single endpoint to
   trigger creation of the reverse LSP and to specify parameters of the
   reverse LSP in the single sided provisioning case.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-06

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-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/


From nobody Tue Feb 24 05:56:05 2015
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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: "teas@ietf.org" <teas@ietf.org>
Thread-Topic: [Teas] I-D Action: draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-06.txt
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Cc: DEBORAH BRUNGARD <db3546@att.com>, "housley@vigilsec.com" <housley@vigilsec.com>, "Lizhong com>" <lizho.jin@gmail.com>, "draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp.all@ietf.org" <draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp.all@ietf.org>, "jiangsheng@huawei.com" <jiangsheng@huawei.com>, Adrian Farrel <adrian@olddog.co.uk>, Lou Berger <lberger@labn.net>, Loa Andersson <loa@pi.nu>
Subject: Re: [Teas] I-D Action: draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-06.txt
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Hi All, WG,

Thank you all for reviewing the draft and providing your
comments/suggestions (including the REVERSE_LSP Object issue raised by
Lou).=20

We have updated the draft to address all outstanding review comments
received during the review. Please let us know if we have missed anything.

Please also advise us if you have comments/suggestions on the latest
revision.=20

Many thanks,
Rakesh and authors


On 2015-02-24 8:37 AM, "internet-drafts@ietf.org"
<internet-drafts@ietf.org> wrote:

>
>A New Internet-Draft is available from the on-line Internet-Drafts
>directories.
> This draft is a work item of the Traffic Engineering Architecture and
>Signaling Working Group of the IETF.
>
>        Title           : RSVP-TE Extensions for Associated Bidirectional
>LSPs
>        Authors         : Fei Zhang
>                          Ruiquan Jing
>                          Rakesh Gandhi
>	Filename        :
>draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp-06.txt
>	Pages           : 20
>	Date            : 2015-02-24
>
>Abstract:
>   This document describes Resource reSerVation Protocol (RSVP)
>   extensions to bind two point-to-point unidirectional Label Switched
>   Paths (LSPs) into an associated bidirectional LSP.  The association
>   is achieved by defining new Association Types for use in ASSOCIATION
>   and in Extended ASSOCIATION Objects.  One of these types enables
>   independent provisioning of the associated bidirectional LSPs on both
>   sides, while the other enables single sided provisioning.  The
>   REVERSE_LSP Object is also defined to enable a single endpoint to
>   trigger creation of the reverse LSP and to specify parameters of the
>   reverse LSP in the single sided provisioning case.
>
>
>The IETF datatracker status page for this draft is:
>https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-associ
>ated-lsp/
>
>There's also a htmlized version available at:
>http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associated-l
>sp-06
>
>A diff from the previous version is available at:
>http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-teas-mpls-tp-rsvpte-ext-asso=
ci
>ated-lsp-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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Date: Tue, 24 Feb 2015 09:24:32 -0500
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Subject: [Teas] IANA & value assignments in drafts
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Hi,
    I was asked off list to clarify a comment on made on this draft in a
previous meeting related to IANA assignments.  My comment was something
along the lines of don't ask IANA to assign values for fields introduced
in a document -- this is a general rule.  To clarify:

All new fields defined in a document need to be fully defined: in
narrative form, in conformance terms, and permitted values.  As these
fields are new, it is *inappropriate* to ask IANA to assign these
initial values.  It is perfectly reasonable for a draft to request  the
establishment of new registries for future cataloging and management of
field values. Requesting the establishment of a registry does not impact
the requirement to fully define each new field introduced in a document.

Also WRT suggested values for new value assignments in *existing*
registries:  Unless you have a specific technical reason to suggest a
specific value, *don't suggest any value*.  If you do suggest a value,
please provide the technical reason for this suggestion in the IANA
section, e.g. "Value suggested to maintain alignment with value used in
XYZ field of the ABC Object."

Finally, IANA section MUST follow RFC5226.  If you want to see an
example, look at a recently published TEAS or CCAMP RFC.

Lou




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Cc: "Rakesh Gandhi \(rgandhi\)" <rgandhi@cisco.com>, "teas-chairs@ietf.org" <teas-chairs@ietf.org>
Subject: [Teas] Consensus call - (Was Re: A clarification request for draft-ietf-teas-mpls-tp-rsvpte-ext-associated-lsp)
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All,
    We'd like to confirm what I (as WG chair) see as consensus on this
point.=20

We believe we have consensus behind requiring that the REVERSE_LSP
Object always be required in the Path message of a single sided type
association.

Please review the published version and send any objections or comments
you may have.  Unless there is objections / discussion on the list to
the contrary *before* March 3rd, I (as Shepherd) will inform the AD
(Adrian) that the WG discussion on this topic is closed.=20

Editorial comments made during this period should be discussed and
resolved on the list and collected for publication in a new version on
(and not before) March 4th.

One procedure comment / question was asked WRT early allocation.  Per
RFC7120, early allocation procedures  requires:

   c.  The specifications of these code points must be stable; i.e., if
       there is a change, implementations based on the earlier and later
       specifications must be seamlessly interoperable.

We believe the stated change meets this test as the previous rules
allowed for the presence of the REVERSE_LSP object and the new rules
will support establishment of LSPs without the object present. =20

If you have an implementation and you believe the change will result in
interoperability issues, please speak up -- either on the list or
privately to the chairs .

Thanks,
Lou (and Deborah)

On 2/17/2015 9:09 PM, Lou Berger wrote:
> All,
>
> I think we *really* need some input here from the WG.  So let me try to=

> summarize the situation:
>
> The problem:
> As part of flushing out details that Adrian correctly pointed out were
> underspecified, we noted that when the REVERSE_LSP Object is not presen=
t
> there is no way for a node receiving a single sided type association to=

> know if it is really the triggering node and to not initiate a new
> reverse LSP.=20
>
> The fix:
> There needs to be something in the Path message of a single sided type
> association to disambiguate the forward and reverse LSP.=20
>
> Some options:
> a) Always require a  REVERSE_LSP Object in the forward LSP
> b) use a different association types in forward and reverse directions,=

> and introduce type-specific matching rules
> c) add a bit somewhere, e.g., in LSP ATTRIBUTES
> d) ???
>
> The proposal in Rakesh's mail is to go with option (a), i.e., a=20
> REVERSE_LSP Object MUST be present in the Path message of the forward L=
SP.
>
> To me this seems like a reasonable and safe change, and was even
> discussed at some point.
>
> Are there any objections?=20
>
> Are there any implementations that will be negatively impacted by this
> change?  (And if so, what option do you prefer.)
>
> Note the draft will need to be updated to reflect the outcome of this
> discussion at which time the WG will again be asked to comment on the
> changes.
>
> Thanks,
> Lou (as Shepherd and co-Chair)
>
> On 2/14/2015 11:38 AM, Rakesh Gandhi (rgandhi) wrote:
>> Hi WG,
>>
>> Seeking input on the following clarification.
>>
>>
>> Original text in the draft for the single sided association LSP setup:=

>> ----------------------------------------------------------------------=

>>    If REVERSE_LSP Object is not present in the received Path message o=
f
>> the LSP, the egress node SHOULD use the LSP properties from the
>>    received LSP Path message to signal the LSP in the reverse directio=
n
>> (which may depend on the local policy).
>>
>>
>> Issue with this text:
>> ---------------------
>> Let's say, an ingress node signals the forward LSP with single sided
>> association type but without REVERSE_LSP object.
>> An egress node creates a reverse LSP using the objects from the Path
>> message of the forward LSP.
>> At the ingress node, this reverse LSP can in turn trigger to create
>> another reverse (well forward) LSP as a response.
>>
>>
>> Clarification:
>> --------------
>> Use the presence of REVERSE_LSP Object in the Path message of the forw=
ard
>> LSP as a trigger to create a reverse LSP on the egress node.
>> Egress node does not add it in the reverse LSP, so the ingress does no=
t
>> trigger another reverse (well forward) LSP since REVERSE_LSP Object is=
 not
>> present.
>>
>>
>> Welcome your inputs.
>>
>> Thanks,
>> Rakesh
>>
>>
>>
>>
>>> The IETF datatracker status page for this draft is:
>>> https://datatracker.ietf.org/doc/draft-ietf-teas-mpls-tp-rsvpte-ext-a=
ssoci
>>> ated-lsp/
>>>
>>> There's also a htmlized version available at:
>>> http://tools.ietf.org/html/draft-ietf-teas-mpls-tp-rsvpte-ext-associa=
ted-l
>>> sp-03
>> _______________________________________________
>> Teas mailing list
>> Teas@ietf.org
>> https://www.ietf.org/mailman/listinfo/teas
>>
>
>
> _______________________________________________
> Teas mailing list
> Teas@ietf.org
> https://www.ietf.org/mailman/listinfo/teas
>




From nobody Wed Feb 25 12:09:12 2015
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Lou Berger'" <lberger@labn.net>, "'TEAS WG'" <teas@ietf.org>
References: <54EC89A0.1040600@labn.net>
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Subject: Re: [Teas] IANA & value assignments in drafts
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What Lou sed.

You might like to look at two collections of information on the RTG Area wiki

http://trac.tools.ietf.org/area/rtg/trac/wiki/WikiStart#CodePointsInternet-Draft
sandEarlyImplementation
http://trac.tools.ietf.org/area/rtg/trac/wiki/CodePointGuidelines

Please recall that this is a wiki and wikis can be edited by *you*

Adrian


> -----Original Message-----
> From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of Lou Berger
> Sent: 24 February 2015 14:25
> To: TEAS WG
> Subject: [Teas] IANA & value assignments in drafts
> 
> Hi,
>     I was asked off list to clarify a comment on made on this draft in a
> previous meeting related to IANA assignments.  My comment was something
> along the lines of don't ask IANA to assign values for fields introduced
> in a document -- this is a general rule.  To clarify:
> 
> All new fields defined in a document need to be fully defined: in
> narrative form, in conformance terms, and permitted values.  As these
> fields are new, it is *inappropriate* to ask IANA to assign these
> initial values.  It is perfectly reasonable for a draft to request  the
> establishment of new registries for future cataloging and management of
> field values. Requesting the establishment of a registry does not impact
> the requirement to fully define each new field introduced in a document.
> 
> Also WRT suggested values for new value assignments in *existing*
> registries:  Unless you have a specific technical reason to suggest a
> specific value, *don't suggest any value*.  If you do suggest a value,
> please provide the technical reason for this suggestion in the IANA
> section, e.g. "Value suggested to maintain alignment with value used in
> XYZ field of the ABC Object."
> 
> Finally, IANA section MUST follow RFC5226.  If you want to see an
> example, look at a recently published TEAS or CCAMP RFC.
> 
> Lou
> 
> 
> 
> _______________________________________________
> Teas mailing list
> Teas@ietf.org
> https://www.ietf.org/mailman/listinfo/teas


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Date: Wed, 25 Feb 2015 17:47:12 -0500
From: Lou Berger <lberger@labn.net>
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Subject: Re: [Teas] IANA & value assignments in drafts
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Thanks Adrian,
    Fell free to lift text that I sent if you think it's appropriate to
add to the wikis...

Lou

On 2/25/2015 3:09 PM, Adrian Farrel wrote:
> What Lou sed.
>
> You might like to look at two collections of information on the RTG Area wiki
>
> http://trac.tools.ietf.org/area/rtg/trac/wiki/WikiStart#CodePointsInternet-Draft
> sandEarlyImplementation
> http://trac.tools.ietf.org/area/rtg/trac/wiki/CodePointGuidelines
>
> Please recall that this is a wiki and wikis can be edited by *you*
>
> Adrian
>
>
>> -----Original Message-----
>> From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of Lou Berger
>> Sent: 24 February 2015 14:25
>> To: TEAS WG
>> Subject: [Teas] IANA & value assignments in drafts
>>
>> Hi,
>>     I was asked off list to clarify a comment on made on this draft in a
>> previous meeting related to IANA assignments.  My comment was something
>> along the lines of don't ask IANA to assign values for fields introduced
>> in a document -- this is a general rule.  To clarify:
>>
>> All new fields defined in a document need to be fully defined: in
>> narrative form, in conformance terms, and permitted values.  As these
>> fields are new, it is *inappropriate* to ask IANA to assign these
>> initial values.  It is perfectly reasonable for a draft to request  the
>> establishment of new registries for future cataloging and management of
>> field values. Requesting the establishment of a registry does not impact
>> the requirement to fully define each new field introduced in a document.
>>
>> Also WRT suggested values for new value assignments in *existing*
>> registries:  Unless you have a specific technical reason to suggest a
>> specific value, *don't suggest any value*.  If you do suggest a value,
>> please provide the technical reason for this suggestion in the IANA
>> section, e.g. "Value suggested to maintain alignment with value used in
>> XYZ field of the ABC Object."
>>
>> Finally, IANA section MUST follow RFC5226.  If you want to see an
>> example, look at a recently published TEAS or CCAMP RFC.
>>
>> Lou
>>
>>
>>
>> _______________________________________________
>> Teas mailing list
>> Teas@ietf.org
>> https://www.ietf.org/mailman/listinfo/teas
>



From nobody Thu Feb 26 18:36:07 2015
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Subject: [Teas] I-D Action: draft-ietf-teas-rsvp-te-li-lb-04.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 Traffic Engineering Architecture and Signaling Working Group of the IETF.

        Title           : GMPLS RSVP-TE Extensions for Lock Instruct and Loopback
        Authors         : Jie Dong
                          Mach(Guoyi) Chen
                          Zhenqiang Li
                          Daniele Ceccarelli
	Filename        : draft-ietf-teas-rsvp-te-li-lb-04.txt
	Pages           : 9
	Date            : 2015-02-26

Abstract:
   This document specifies extensions to Resource Reservation Protocol-
   Traffic Engineering (RSVP-TE) to support Lock Instruct (LI) and
   Loopback (LB) mechanisms for Label Switched Paths (LSPs).  These
   mechanisms are applicable to technologies which use Generalized
   Multi-Protocol Label Switching (GMPLS) for the control plane.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-teas-rsvp-te-li-lb/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-teas-rsvp-te-li-lb-04

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-teas-rsvp-te-li-lb-04


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 Sat Feb 28 20:53:14 2015
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Date: Sat, 28 Feb 2015 23:53:09 -0500
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From: Vishnu Pavan Beeram <vishnupavan@gmail.com>
To: Adrian Farrel <adrian@olddog.co.uk>
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Cc: draft-ietf-teas-interconnected-te-info-exchange@tools.ietf.org, "teas@ietf.org" <teas@ietf.org>
Subject: Re: [Teas] FW: I-D Action: draft-ietf-teas-interconnected-te-info-exchange-01.txt
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Adrian, Hi!

The new text looks good.

I would like to propose adding a new section to this draft for covering the
"mutual exclusivity" property of abstract TE links. I would like to get the
WG's opinion on rolling in the attached text (either as is or in some
edited form) into the next revision. IMO, the ideal place would be to put
it right after the section that discusses =E2=80=9CMacro SRLGs=E2=80=9D.

Regards,
-Pavan

On Fri, Feb 6, 2015 at 7:02 PM, Adrian Farrel <adrian@olddog.co.uk> wrote:

> All,
>
> Working towards my promise given to the then CCAMP chairs (but presumably
> transferred to the TEAS chairs), I have attacked one of the four TBD
> sections in
> this draft by writing some Security Considerations text.
>
> Would welcome comments on that text, on the other three TBD sections, or
> on the
> draft as a whole.
>
> Thanks,
> Adrian
>
> > -----Original Message-----
> > From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of
> internet-drafts@ietf.org
> > Sent: 07 February 2015 00:00
> > To: i-d-announce@ietf.org
> > Cc: teas@ietf.org
> > Subject: [Teas] I-D Action:
> draft-ietf-teas-interconnected-te-info-exchange-
> > 01.txt
> >
> >
> > A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
> >  This draft is a work item of the Traffic Engineering Architecture and
> Signaling
> > Working Group of the IETF.
> >
> >         Title           : Problem Statement and Architecture for
> Information
> Exchange
> > Between Interconnected Traffic Engineered Networks
> >
> > The IETF datatracker status page for this draft is:
> > https://datatracker.ietf.org/doc/draft-ietf-teas-interconnected-te-info=
-
> > exchange/
>
> _______________________________________________
> Teas mailing list
> Teas@ietf.org
> https://www.ietf.org/mailman/listinfo/teas
>

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<div dir=3D"ltr"><div>Adrian, Hi!<br><br>The new text looks good. <br><br>I=
 would like to propose adding a new section to this draft for covering the =
&quot;mutual exclusivity&quot; property of abstract TE links. I would like =
to get the WG&#39;s opinion on<span style=3D"font-size:11pt;font-family:&qu=
ot;Calibri&quot;,sans-serif"> rolling in the attached text (either as is or=
 in some edited form) into the next revision. IMO, </span><span style=3D"fo=
nt-size:11pt;font-family:&quot;Calibri&quot;,sans-serif"><span style=3D"fon=
t-size:11pt;font-family:&quot;Calibri&quot;,sans-serif">

</span></span>the ideal place would be to put it right after the section
that discusses =E2=80=9CMacro SRLGs=E2=80=9D.<span style=3D"font-size:11pt;=
font-family:&quot;Calibri&quot;,sans-serif"><span style=3D"font-size:11pt;f=
ont-family:&quot;Calibri&quot;,sans-serif">

<br><br></span></span></div><div><span style=3D"font-size:11pt;font-family:=
&quot;Calibri&quot;,sans-serif">Regards,<br></span></div><div><span style=
=3D"font-size:11pt;font-family:&quot;Calibri&quot;,sans-serif">-Pavan<br></=
span></div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">=
On Fri, Feb 6, 2015 at 7:02 PM, Adrian Farrel <span dir=3D"ltr">&lt;<a href=
=3D"mailto:adrian@olddog.co.uk" target=3D"_blank">adrian@olddog.co.uk</a>&g=
t;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0=
 .8ex;border-left:1px #ccc solid;padding-left:1ex">All,<br>
<br>
Working towards my promise given to the then CCAMP chairs (but presumably<b=
r>
transferred to the TEAS chairs), I have attacked one of the four TBD sectio=
ns in<br>
this draft by writing some Security Considerations text.<br>
<br>
Would welcome comments on that text, on the other three TBD sections, or on=
 the<br>
draft as a whole.<br>
<br>
Thanks,<br>
Adrian<br>
<span class=3D"im HOEnZb"><br>
&gt; -----Original Message-----<br>
&gt; From: Teas [mailto:<a href=3D"mailto:teas-bounces@ietf.org">teas-bounc=
es@ietf.org</a>] On Behalf Of<br>
<a href=3D"mailto:internet-drafts@ietf.org">internet-drafts@ietf.org</a><br=
>
&gt; Sent: 07 February 2015 00:00<br>
&gt; To: <a href=3D"mailto:i-d-announce@ietf.org">i-d-announce@ietf.org</a>=
<br>
&gt; Cc: <a href=3D"mailto:teas@ietf.org">teas@ietf.org</a><br>
&gt; Subject: [Teas] I-D Action: draft-ietf-teas-interconnected-te-info-exc=
hange-<br>
&gt; 01.txt<br>
&gt;<br>
&gt;<br>
&gt; A New Internet-Draft is available from the on-line Internet-Drafts<br>
directories.<br>
&gt;=C2=A0 This draft is a work item of the Traffic Engineering Architectur=
e and<br>
Signaling<br>
&gt; Working Group of the IETF.<br>
&gt;<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Title=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0: Problem Statement and Architecture for Information<br>
Exchange<br>
&gt; Between Interconnected Traffic Engineered Networks<br>
&gt;<br>
</span><span class=3D"im HOEnZb">&gt; The IETF datatracker status page for =
this draft is:<br>
&gt; <a href=3D"https://datatracker.ietf.org/doc/draft-ietf-teas-interconne=
cted-te-info-" target=3D"_blank">https://datatracker.ietf.org/doc/draft-iet=
f-teas-interconnected-te-info-</a><br>
&gt; exchange/<br>
<br>
</span><div class=3D"HOEnZb"><div class=3D"h5">____________________________=
___________________<br>
Teas mailing list<br>
<a href=3D"mailto:Teas@ietf.org">Teas@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/teas" target=3D"_blank">ht=
tps://www.ietf.org/mailman/listinfo/teas</a><br>
</div></div></blockquote></div><br></div>

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