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From: Greg Mirsky <gregimirsky@gmail.com>
Date: Wed, 4 Oct 2017 11:34:00 -0700
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Subject: Fwd: New Version Notification for draft-mirsky-bfd-p2mp-vrrp-use-case-01.txt
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--94eb2c0d8ea8fe2ba9055abcd9cf
Content-Type: text/plain; charset="UTF-8"

Dear All,
updates to the draft include the new mechanism to use VRRP control message
to bootstrap p2mp BFD session within given VRID domain. To the best of our
knowledge and understanding the current mechanism defined in the draft is
sufficiently different from IPR disclosure
https://datatracker.ietf.org/ipr/2739/.

Appreciate your comments, questions.

Regards,
Greg

---------- Forwarded message ----------
From: <internet-drafts@ietf.org>
Date: Wed, Oct 4, 2017 at 10:39 AM
Subject: New Version Notification for
draft-mirsky-bfd-p2mp-vrrp-use-case-01.txt
To: Gregory Mirsky <gregimirsky@gmail.com>, Jeff Tantsura <
jefftant.ietf@gmail.com>



A new version of I-D, draft-mirsky-bfd-p2mp-vrrp-use-case-01.txt
has been successfully submitted by Greg Mirsky and posted to the
IETF repository.

Name:           draft-mirsky-bfd-p2mp-vrrp-use-case
Revision:       01
Title:          Bidirectional Forwarding Detection (BFD) for Multi-point
Networks and Virtual Router Redundancy Protocol (VRRP) Use Case
Document date:  2017-10-03
Group:          Individual Submission
Pages:          6
URL:            https://www.ietf.org/internet-drafts/draft-mirsky-bfd-p2mp-
vrrp-use-case-01.txt
Status:         https://datatracker.ietf.org/doc/draft-mirsky-bfd-p2mp-
vrrp-use-case/
Htmlized:       https://tools.ietf.org/html/draft-mirsky-bfd-p2mp-vrrp-
use-case-01
Htmlized:       https://datatracker.ietf.org/doc/html/draft-mirsky-bfd-
p2mp-vrrp-use-case-01
Diff:           https://www.ietf.org/rfcdiff?url2=draft-mirsky-bfd-p2mp-
vrrp-use-case-01

Abstract:
   This document discusses use of Bidirectional Forwarding Detection
   (BFD) for multi-point networks to provide Virtual Router Redundancy
   Protocol (VRRP) with sub-second Master convergence and defines the
   extension to bootstrap point-to-multipoint BFD session.


Hello,
your help with manual posting of this draft is greatly appreciated. Both
authors changed their affiliation and cannot confirm submission through
regular process.
Please let me know if you have any further questions.

Thank you in advance for your help.

Regards,
Greg

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

The IETF Secretariat

--94eb2c0d8ea8fe2ba9055abcd9cf
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Dear All,<div>updates to the draft include the new mechani=
sm to use VRRP control message to bootstrap p2mp BFD session within given V=
RID domain. To the best of our knowledge and understanding the current mech=
anism defined in the draft is sufficiently different from IPR disclosure=C2=
=A0<a href=3D"https://datatracker.ietf.org/ipr/2739/">https://datatracker.i=
etf.org/ipr/2739/</a>.</div><div><br></div><div>Appreciate your comments, q=
uestions.</div><div><br></div><div>Regards,</div><div>Greg</div><div><br><d=
iv class=3D"gmail_quote">---------- Forwarded message ----------<br>From: <=
b class=3D"gmail_sendername"></b> <span dir=3D"ltr">&lt;<a href=3D"mailto:i=
nternet-drafts@ietf.org">internet-drafts@ietf.org</a>&gt;</span><br>Date: W=
ed, Oct 4, 2017 at 10:39 AM<br>Subject: New Version Notification for draft-=
mirsky-bfd-p2mp-vrrp-use-case-01.txt<br>To: Gregory Mirsky &lt;<a href=3D"m=
ailto:gregimirsky@gmail.com">gregimirsky@gmail.com</a>&gt;, Jeff Tantsura &=
lt;<a href=3D"mailto:jefftant.ietf@gmail.com">jefftant.ietf@gmail.com</a>&g=
t;<br><br><br><br>
A new version of I-D, draft-mirsky-bfd-p2mp-vrrp-<wbr>use-case-01.txt<br>
has been successfully submitted by Greg Mirsky and posted to the<br>
IETF repository.<br>
<br>
Name:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0draft-mirsky-bfd-p2mp-vrrp-<w=
br>use-case<br>
Revision:=C2=A0 =C2=A0 =C2=A0 =C2=A001<br>
Title:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Bidirectional Forwarding Detection=
 (BFD) for Multi-point Networks and Virtual Router Redundancy Protocol (VRR=
P) Use Case<br>
Document date:=C2=A0 2017-10-03<br>
Group:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Individual Submission<br>
Pages:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 6<br>
URL:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 <a href=3D"https://www.ietf.o=
rg/internet-drafts/draft-mirsky-bfd-p2mp-vrrp-use-case-01.txt" rel=3D"noref=
errer" target=3D"_blank">https://www.ietf.org/internet-<wbr>drafts/draft-mi=
rsky-bfd-p2mp-<wbr>vrrp-use-case-01.txt</a><br>
Status:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"https://datatracker.iet=
f.org/doc/draft-mirsky-bfd-p2mp-vrrp-use-case/" rel=3D"noreferrer" target=
=3D"_blank">https://datatracker.ietf.org/<wbr>doc/draft-mirsky-bfd-p2mp-<wb=
r>vrrp-use-case/</a><br>
Htmlized:=C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"https://tools.ietf.org/html/=
draft-mirsky-bfd-p2mp-vrrp-use-case-01" rel=3D"noreferrer" target=3D"_blank=
">https://tools.ietf.org/html/<wbr>draft-mirsky-bfd-p2mp-vrrp-<wbr>use-case=
-01</a><br>
Htmlized:=C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"https://datatracker.ietf.org=
/doc/html/draft-mirsky-bfd-p2mp-vrrp-use-case-01" rel=3D"noreferrer" target=
=3D"_blank">https://datatracker.ietf.org/<wbr>doc/html/draft-mirsky-bfd-<wb=
r>p2mp-vrrp-use-case-01</a><br>
Diff:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"https://www.ietf.o=
rg/rfcdiff?url2=3Ddraft-mirsky-bfd-p2mp-vrrp-use-case-01" rel=3D"noreferrer=
" target=3D"_blank">https://www.ietf.org/rfcdiff?<wbr>url2=3Ddraft-mirsky-b=
fd-p2mp-<wbr>vrrp-use-case-01</a><br>
<br>
Abstract:<br>
=C2=A0 =C2=A0This document discusses use of Bidirectional Forwarding Detect=
ion<br>
=C2=A0 =C2=A0(BFD) for multi-point networks to provide Virtual Router Redun=
dancy<br>
=C2=A0 =C2=A0Protocol (VRRP) with sub-second Master convergence and defines=
 the<br>
=C2=A0 =C2=A0extension to bootstrap point-to-multipoint BFD session.<br>
<br>
<br>
Hello,<br>
your help with manual posting of this draft is greatly appreciated. Both au=
thors changed their affiliation and cannot confirm submission through regul=
ar process.<br>
Please let me know if you have any further questions.<br>
<br>
Thank you in advance for your help.<br>
<br>
Regards,<br>
Greg<br>
<br>
Please note that it may take a couple of minutes from the time of submissio=
n<br>
until the htmlized version and diff are available at <a href=3D"http://tool=
s.ietf.org" rel=3D"noreferrer" target=3D"_blank">tools.ietf.org</a>.<br>
<br>
The IETF Secretariat<br>
<br>
</div><br></div></div>

--94eb2c0d8ea8fe2ba9055abcd9cf--


From nobody Wed Oct  4 15:08:37 2017
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From: Melinda Shore <melinda.shore@gmail.com>
To: <secdir@ietf.org>
Cc: draft-ietf-rtgwg-uloop-delay.all@ietf.org, ietf@ietf.org, rtgwg@ietf.org
Subject: Secdir last call review of draft-ietf-rtgwg-uloop-delay-06
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Reviewer: Melinda Shore
Review result: Has Nits

This document describes a mechanism to mitigate against failures stemming from
the formation of "microloops" during a re-routing convergence, as described in
RFC 5715.  Modulo some mechanical problems with language usage (i.e.
grammatical errors) and some missing definitions, the document clearly
describes the problem it is addressing and the proposed solution.

The security considerations section is very clear about why the authors believe
no new attacks are introduced by this mechanism, and it is credible

Sections 4 and 5 represent the core of the document and are very clear - a very
nice piece of specification.

It would be helpful to have a terminology section, or to expand some of the
acronyms in-line (LFA, for example).

For some reason the grammatical errors are clustered towards the front of the
document but there are many scattered throughout:

Section 1, first paragraph singular/plural mismatch: "Based on network
analysis, local failure make up a significant portion of the micro-forwarding
loops"

Section 1, second paragraph unidiomatic use of "the topology"

Section 2, first paragraph unidiomatic use of "high damages"

Section 2.1, first paragraph needs an article on "IGP shortcut"

Same paragraph, doesn't need an article on "the router C"

Same paragraph, "nexthop" should be two words

Item 1 in 2.1, needs an article before "preprogrammed FRR path", also run-on
sentence needs to be split or a conjunction inserted

Item 3 in 2.1, "no more" should be "no longer", and "encapsulate anymore"
should be "does not continue to encapsulate"

Section 2.1, last paragraph: "The protection enabled by fast-reroute is working
perfectly, but ensures a protection, by definition, only until the PLR has
converged." is somewhat unclear

Section 3, third paragraph: first comma is unnecessary.  Also, "local only"
should be "local-only"

Section 8.2, first paragraph: "associating timing" should be "associated
timing".

Also in section 8.2, the message chart header is separated from the actual
contents by a page break, and that should be remedied

Section 8.3, first paragraph: "that happens" should be "that happen".  Also,
"without further delaying route insertion" would be more idiomatic than
"without delaying route insertion anymore"

Section 9.1, throughout: "nexthop" should be "next hop"

Section 9.1, first bullet item: "only have one" should be "only has one" (or
"has only one")

Section 10: "a good behavior" should be "good behavior"


From nobody Thu Oct  5 17:37:38 2017
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Subject: I-D Action: draft-ietf-rtgwg-routing-types-16.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 Routing Area Working Group WG of the IETF.

        Title           : Routing Area Common YANG Data Types
        Authors         : Xufeng Liu
                          Yingzhen Qu
                          Acee Lindem
                          Christian Hopps
                          Lou Berger
	Filename        : draft-ietf-rtgwg-routing-types-16.txt
	Pages           : 37
	Date            : 2017-10-05

Abstract:
   This document defines a collection of common data types using the
   YANG data modeling language.  These derived common types are designed
   to be imported by other modules defined in the routing area.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-routing-types/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-routing-types-16
https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-routing-types-16

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-routing-types-16


Please note that it may take a couple of minutes from the time of submission
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From nobody Mon Oct  9 04:34:25 2017
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Subject: =?utf-8?q?Mirja_K=C3=BChlewind=27s_No_Objection_on_draft-ietf-rtgw?= =?utf-8?q?g-uloop-delay-06=3A_=28with_COMMENT=29?=
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Mirja Kühlewind has entered the following ballot position for
draft-ietf-rtgwg-uloop-delay-06: No Objection

When responding, please keep the subject line intact and reply to all
email addresses included in the To and CC lines. (Feel free to cut this
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Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html
for more information about IESG DISCUSS and COMMENT positions.


The document, along with other ballot positions, can be found here:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-uloop-delay/



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

Nit in section 9:
You should probably not talk about 'our' solution or mechanism in an RFC:
s/our/this/ or s/our X/the X described in this document/
This appears multiple times in section 9.



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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 Routing Area Working Group WG of the IETF.

        Title           : Micro-loop prevention by introducing a local convergence delay
        Authors         : Stephane Litkowski
                          Bruno Decraene
                          Clarence Filsfils
                          Pierre Francois
	Filename        : draft-ietf-rtgwg-uloop-delay-07.txt
	Pages           : 24
	Date            : 2017-10-10

Abstract:
   This document describes a mechanism for link-state routing protocols
   to prevent local transient forwarding loops in case of link failure.
   This mechanism proposes a two-step convergence by introducing a delay
   between the convergence of the node adjacent to the topology change
   and the network wide convergence.

   As this mechanism delays the IGP convergence it may only be used for
   planned maintenance or when fast reroute protects the traffic between
   the link failure time and the IGP convergence.

   The proposed mechanism is limited to the link down event in order to
   keep the mechanism simple.

   Simulations using real network topologies have been performed and
   show that local loops are a significant portion (>50%) of the total
   forwarding loops.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-uloop-delay/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-uloop-delay-07
https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-uloop-delay-07

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-uloop-delay-07


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: <stephane.litkowski@orange.com>
To: Melinda Shore <melinda.shore@gmail.com>, "secdir@ietf.org" <secdir@ietf.org>
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Subject: Re: [Gen-art] Genart last call review of draft-ietf-rtgwg-uloop-delay-06
From: Alissa Cooper <alissa@cooperw.in>
In-Reply-To: <15706_1506517788_59CBA31C_15706_105_1_9E32478DFA9976438E7A22F69B08FF921EA8172D@OPEXCLILMA4.corporate.adroot.infra.ftgroup>
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Roni, thanks for your review. Stephane, thanks for agreeing to make =
fixes. I have entered a No Objection ballot.

Alissa

> On Sep 27, 2017, at 9:09 AM, stephane.litkowski@orange.com wrote:
>=20
> Thanks I will fix it in the next revision
>=20
>=20
> -----Original Message-----
> From: Roni Even [mailto:ron.even.tlv@gmail.com]=20
> Sent: Wednesday, September 27, 2017 11:00
> To: gen-art@ietf.org
> Cc: draft-ietf-rtgwg-uloop-delay.all@ietf.org; ietf@ietf.org; =
rtgwg@ietf.org
> Subject: Genart last call review of draft-ietf-rtgwg-uloop-delay-06
>=20
> Reviewer: Roni Even
> Review result: Ready with Nits
>=20
> I am the assigned Gen-ART reviewer for this draft. The General Area =
Review Team (Gen-ART) reviews all IETF documents being processed by the =
IESG for the IETF Chair.  Please treat these comments just like any =
other last call comments.
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> For more information, please see the FAQ at
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> <https://trac.ietf.org/trac/gen/wiki/GenArtfaq>.
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> Document: draft-ietf-rtgwg-uloop-delay-??
> Reviewer: Roni Even
> Review Date: 2017-09-27
> IETF LC End Date: 2017-10-04
> IESG Telechat date: 2017-10-12
>=20
> Summary:
> The document is ready for publication as a standard track RFC with =
nits
>=20
> Major issues:
>=20
> Minor issues:
>=20
> Nits/editorial comments:
>=20
> 1. Abbreviation like RIB and FIB are not expanded 2. In section 9.1 =
"more simple" should be "simpler"
> 3. In section 9.1 " does not enough provide enough bandwidth"  to " =
does not provide enough bandwidth" 4. In section 9.2 "a mechanism where =
the convergence of the  network upon a topology change is made ordered =
to prevent transient forwarding loops"  is difficult to read maybe "a =
mechanism where the convergence of the network upon a topology change is =
ordered in order to prevent transient forwarding loops"
>=20
>=20
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> =
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From nobody Tue Oct 10 13:52:22 2017
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Alvaro Retana has entered the following ballot position for
draft-ietf-rtgwg-uloop-delay-07: Discuss

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----------------------------------------------------------------------
DISCUSS:
----------------------------------------------------------------------

Section 5.1. (Definitions) refers to a couple of “existing IGP timers”.  I
understand the concepts, but can you please reference the IGP documents where
these timers are defined?  I quickly checked rfc2328 and couldn’t find a
specific place that talked about LSP_GEN_TIMER (or LSA, of course!), or a
similar concept.  SPF_DELAY seems to be introduced by
I-D.ietf-rtgwg-backoff-algo.  Given that the rest of Section 5. (Specification)
is built on these “existing IGP timers”, I think that the references should be
Normative.

Note also that the description in Section 5.2. (Current IGP reactions) is
described (in 5.3) as the “standard IP convergence” and carries a “MUST”
associated with it.  It was mentioned (in 5.1) that the timers in question are
“often associated with a damping mechanism”, which is not part of the base IGP
specifications.

I’m putting this comment in as a DISCUSS given that understanding the
definitions (and having then Normative references) is necessary for the
implementation of the mechanism described.  I think it should be easy to
resolve by just adding the appropriate references.


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

(1) Where do the numbers in the “Route computation event time scale” table come
from?  Please put a reference or at least some guidance to the origin of the
information.  If it's just for informational purposes, then please say so. 
BTW, please also put a number on the table.  [I have the same question for the
tables in Section 9.]

(2) Section 5.4. (Local delay for link down) specifies that “update of the RIB
and the FIB SHOULD be delayed for ULOOP_DELAY_DOWN_TIMER msecs.  Otherwise, the
RIB and FIB SHOULD be updated immediately.”  When would ULOOP_DELAY_DOWN_TIMER
not be applied?  Along the same lines, if there’s no delay mentioned in Step 5
of 5.3, when would the RIB/FIB not be updated immediately?  IOW, why are these
“SHOULDs” not “MUSTs”?

(3) What should be the default setting for ULOOP_DELAY_DOWN_TIMER?  Section 9.
(Examples) shows a couple of manually configured (?) scenarios, but no guidance
is present in the document.  Please include guidance (maybe based on the local
network convergence, or even a default that manufacturers can use) in the
Deployment Considerations section.

(4) Section 11. (Existing implementations).  Please take a look at RFC7942.

Nits:

s/any traffic destined to D if a neighbor did not/any traffic destined to D; if
a neighbor did not

s/can be work/can work

“IGP shortcut feature”: a reference would be nice



From nobody Tue Oct 10 15:44:54 2017
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Adam Roach has entered the following ballot position for
draft-ietf-rtgwg-uloop-delay-07: No Objection

When responding, please keep the subject line intact and reply to all
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Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html
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The document, along with other ballot positions, can be found here:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-uloop-delay/



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

This document doesn't really define any new on-the-wire protocol. Was
publication as a BCP rather than a standards track document considered?

The Introduction contains the following text:

   That means that all non-D
   neighbors of S on the topology will send to S any traffic destined to
   D if a neighbor did not, then that neighbor would be loop-free.

I can't parse this sentence. Is there supposed to be a sentence break somewhere
in there?

The introduction starts talking about post-failure events (e.g., "when S
converges to the new topology") before mentioning a failure of the S-D link.
This makes it very hard to follow. Would suggest mentioning the failure being
considered before talking about the ensuing events.

Section 4 begins:

   This document defines a two-step convergence initiated by the router
   detecting a failure and advertising the topological changes in the
   IGP.  This introduces a delay between the convergence of the local
   router and the network wide convergence.

This reads backwards to me. With this technique, the network converges first,
followed by an introduced delay, followed by router convergence. Right?

Further on in that section:

   This benefit comes at the
   expense of eliminating transient forwarding loops involving the local
   router.

I can't make sense of this. Eliminating transient forwarding loops is a good
thing, right? Not an expense?

I agree with Alvaro that the lack of a recommended default for
ULOOP_DELAY_DOWN_TIMER is an issue, especially as the values configured in the
examples seem to change arbitrarily from 1 second to 2 seconds.



From nobody Tue Oct 10 19:05:21 2017
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From: "Russ White" <7riw77@gmail.com>
To: <rtgwg@ietf.org>, <isis-wg@ietf.org>
Subject: draft-white-openfabric-03.txt
Date: Tue, 10 Oct 2017 22:04:54 -0400
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Y'all --

Submitted a new version of the IS-IS modifications to support Openfabric =
today --

Name:		draft-white-openfabric
Revision:	03
Title:		IS-IS Support for Openfabric
Document date:	2017-10-10
Group:		Individual Submission
Pages:		17
URL:            =
https://www.ietf.org/internet-drafts/draft-white-openfabric-03.txt
Status:         https://datatracker.ietf.org/doc/draft-white-openfabric/
Htmlized:       https://tools.ietf.org/html/draft-white-openfabric-03
Htmlized:       =
https://datatracker.ietf.org/doc/html/draft-white-openfabric-03
Diff:           =
https://www.ietf.org/rfcdiff?url2=3Ddraft-white-openfabric-03

A good number of changes, so there are likely to be a good number of new =
mistakes and problems.

=F0=9F=98=8A

Russ


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From: <stephane.litkowski@orange.com>
To: Alvaro Retana <aretana.ietf@gmail.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-rtgwg-uloop-delay@ietf.org" <draft-ietf-rtgwg-uloop-delay@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "chrisbowers.ietf@gmail.com" <chrisbowers.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: RE: Alvaro Retana's Discuss on draft-ietf-rtgwg-uloop-delay-07: (with DISCUSS and COMMENT)
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From nobody Wed Oct 11 02:18:41 2017
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From: <stephane.litkowski@orange.com>
To: Adam Roach <adam@nostrum.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-rtgwg-uloop-delay@ietf.org" <draft-ietf-rtgwg-uloop-delay@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "chrisbowers.ietf@gmail.com" <chrisbowers.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: RE: Adam Roach's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
Thread-Topic: Adam Roach's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
Thread-Index: AQHTQhliY+Tb6d3dakOJuZoW8aTr46LeXQAg
Date: Wed, 11 Oct 2017 09:18:30 +0000
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From nobody Wed Oct 11 08:29:46 2017
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Subject: Re: Adam Roach's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
To: stephane.litkowski@orange.com, The IESG <iesg@ietf.org>
Cc: "chrisbowers.ietf@gmail.com" <chrisbowers.ietf@gmail.com>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "draft-ietf-rtgwg-uloop-delay@ietf.org" <draft-ietf-rtgwg-uloop-delay@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
References: <150767541457.24751.687319228801244172.idtracker@ietfa.amsl.com> <28717_1507713511_59DDE1E7_28717_181_1_9E32478DFA9976438E7A22F69B08FF921EA865E9@OPEXCLILMA4.corporate.adroot.infra.ftgroup>
From: Adam Roach <adam@nostrum.com>
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On 10/11/17 4:18 AM, stephane.litkowski@orange.com wrote:
> Hi Adam,
>
> Thanks for your review.
> Some comments inline
>

Your proposals all look good to me. One additional comment, below.

>
> Section 4 begins:
>
>     This document defines a two-step convergence initiated by the router
>     detecting a failure and advertising the topological changes in the
>     IGP.  This introduces a delay between the convergence of the local
>     router and the network wide convergence.
>
> This reads backwards to me. With this technique, the network converges first, followed by an introduced delay, followed by router convergence. Right?
> [SLI] The network converges first, then the local router thanks to the introduced local delay.

Yes, so I would suggest rephrasing the above as:

    This document defines a two-step convergence initiated by the router
    detecting a failure and advertising the topological changes in the
    IGP.  This introduces a delay between network-wide convergence and
    the convergence of the local router.


/a


From nobody Wed Oct 11 08:35:27 2017
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From: <stephane.litkowski@orange.com>
To: Adam Roach <adam@nostrum.com>, The IESG <iesg@ietf.org>
CC: "chrisbowers.ietf@gmail.com" <chrisbowers.ietf@gmail.com>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "draft-ietf-rtgwg-uloop-delay@ietf.org" <draft-ietf-rtgwg-uloop-delay@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: RE: Adam Roach's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
Thread-Topic: Adam Roach's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
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Date: Wed, 11 Oct 2017 15:35:20 +0000
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From: Kathleen Moriarty <Kathleen.Moriarty.ietf@gmail.com>
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Kathleen Moriarty has entered the following ballot position for
draft-ietf-rtgwg-routing-types-16: No Objection

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

It would be good to call out the elements that are identifiers in the security
considerations section as the ones that might have an impact on security and
privacy.  The text in 7950 is good, but just adding something to list the
identifiers or state that identifiers may be of concern would be an
improvement.  Thanks.



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Subject: Re: Kathleen Moriarty's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
To: Kathleen Moriarty <Kathleen.Moriarty.ietf@gmail.com>, The IESG <iesg@ietf.org>
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From: Benoit Claise <bclaise@cisco.com>
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Hi Kathleen,
> Kathleen Moriarty has entered the following ballot position for
> draft-ietf-rtgwg-routing-types-16: No Objection
>
> When responding, please keep the subject line intact and reply to all
> email addresses included in the To and CC lines. (Feel free to cut this
> introductory paragraph, however.)
>
>
> Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html
> for more information about IESG DISCUSS and COMMENT positions.
>
>
> The document, along with other ballot positions, can be found here:
> https://datatracker.ietf.org/doc/draft-ietf-rtgwg-routing-types/
>
>
>
> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
>
> It would be good to call out the elements that are identifiers in the security
> considerations section as the ones that might have an impact on security and
> privacy.  The text in 7950 is good, but just adding something to list the
> identifiers or state that identifiers may be of concern would be an
> improvement.  Thanks.
This draft only contains the typedefs and not the leave instances.
The privacy considerations should be on the instances, so the typedef usage.
For example, the privacy considerations would be different if the 
instance is read only or read write.

Regards, Benoit
>
>
> .
>


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From: Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com>
Date: Wed, 11 Oct 2017 12:02:33 -0400
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Subject: Re: Kathleen Moriarty's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
To: Benoit Claise <bclaise@cisco.com>
Cc: The IESG <iesg@ietf.org>, draft-ietf-rtgwg-routing-types@ietf.org,  rtgwg-chairs@ietf.org, Jeff Tantsura <jefftant.ietf@gmail.com>, rtgwg@ietf.org
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On Wed, Oct 11, 2017 at 12:01 PM, Benoit Claise <bclaise@cisco.com> wrote:
> Hi Kathleen,
>
>> Kathleen Moriarty has entered the following ballot position for
>> draft-ietf-rtgwg-routing-types-16: No Objection
>>
>> When responding, please keep the subject line intact and reply to all
>> email addresses included in the To and CC lines. (Feel free to cut this
>> introductory paragraph, however.)
>>
>>
>> Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html
>> for more information about IESG DISCUSS and COMMENT positions.
>>
>>
>> The document, along with other ballot positions, can be found here:
>> https://datatracker.ietf.org/doc/draft-ietf-rtgwg-routing-types/
>>
>>
>>
>> ----------------------------------------------------------------------
>> COMMENT:
>> ----------------------------------------------------------------------
>>
>> It would be good to call out the elements that are identifiers in the
>> security
>> considerations section as the ones that might have an impact on security
>> and
>> privacy.  The text in 7950 is good, but just adding something to list the
>> identifiers or state that identifiers may be of concern would be an
>> improvement.  Thanks.
>
> This draft only contains the typedefs and not the leave instances.
> The privacy considerations should be on the instances, so the typedef usage.
> For example, the privacy considerations would be different if the instance
> is read only or read write.

Thanks for the quick reply.  Could that be made clear instead of a
vague sentence in the Security Considerations then so the
considerations are understood (an minimal)?

Thanks,
Kathleen
>
> Regards, Benoit
>>
>>
>>
>> .
>>
>



-- 

Best regards,
Kathleen


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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com>, "Benoit Claise (bclaise)" <bclaise@cisco.com>
CC: The IESG <iesg@ietf.org>, "draft-ietf-rtgwg-routing-types@ietf.org" <draft-ietf-rtgwg-routing-types@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, Jeff Tantsura <jefftant.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: Kathleen Moriarty's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
Thread-Topic: Kathleen Moriarty's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
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Date: Wed, 11 Oct 2017 16:28:34 +0000
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From: Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com>
Date: Wed, 11 Oct 2017 13:23:17 -0400
Message-ID: <CAHbuEH6hCiun-b3D2atBjMBF11Z_ysv5yqf3T0tZzs4gUztN8A@mail.gmail.com>
Subject: Re: Kathleen Moriarty's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
To: "Acee Lindem (acee)" <acee@cisco.com>
Cc: "Benoit Claise (bclaise)" <bclaise@cisco.com>, The IESG <iesg@ietf.org>,  "draft-ietf-rtgwg-routing-types@ietf.org" <draft-ietf-rtgwg-routing-types@ietf.org>,  "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, Jeff Tantsura <jefftant.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
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On Wed, Oct 11, 2017 at 12:28 PM, Acee Lindem (acee) <acee@cisco.com> wrote=
:
> Hi Kathleen,
>
>
>
> On 10/11/17, 12:02 PM, "Kathleen Moriarty"
> <kathleen.moriarty.ietf@gmail.com> wrote:
>
>>On Wed, Oct 11, 2017 at 12:01 PM, Benoit Claise <bclaise@cisco.com> wrote=
:
>>> Hi Kathleen,
>>>
>>>> Kathleen Moriarty has entered the following ballot position for
>>>> draft-ietf-rtgwg-routing-types-16: No Objection
>>>>
>>>> When responding, please keep the subject line intact and reply to all
>>>> email addresses included in the To and CC lines. (Feel free to cut thi=
s
>>>> introductory paragraph, however.)
>>>>
>>>>
>>>> Please refer to
>>>>https://www.ietf.org/iesg/statement/discuss-criteria.html
>>>> for more information about IESG DISCUSS and COMMENT positions.
>>>>
>>>>
>>>> The document, along with other ballot positions, can be found here:
>>>> https://datatracker.ietf.org/doc/draft-ietf-rtgwg-routing-types/
>>>>
>>>>
>>>>
>>>> ----------------------------------------------------------------------
>>>> COMMENT:
>>>> ----------------------------------------------------------------------
>>>>
>>>> It would be good to call out the elements that are identifiers in the
>>>> security
>>>> considerations section as the ones that might have an impact on
>>>>security
>>>> and
>>>> privacy.  The text in 7950 is good, but just adding something to list
>>>>the
>>>> identifiers or state that identifiers may be of concern would be an
>>>> improvement.  Thanks.
>>>
>>> This draft only contains the typedefs and not the leave instances.
>>> The privacy considerations should be on the instances, so the typedef
>>>usage.
>>> For example, the privacy considerations would be different if the
>>>instance
>>> is read only or read write.
>>
>>Thanks for the quick reply.  Could that be made clear instead of a
>>vague sentence in the Security Considerations then so the
>>considerations are understood (an minimal)?
>
> Are you familiar with the YANG language? Would it make it less vague if i=
f
> =E2=80=9Cdata definitions=E2=80=9D were replaced by =E2=80=9Ctype definit=
ions (i.e., typedef
> statements)=E2=80=9D and =E2=80=9Csecurity considerations=E2=80=9D were r=
eplaced by =E2=80=9Csecurity and
> privacy consideration=E2=80=9D?

Hi Acee,

Yes, that is a nice and simple improvement.

Thank you,
Kathleen

>
> Thanks,
> Acee
>
>>
>>Thanks,
>>Kathleen
>>>
>>> Regards, Benoit
>>>>
>>>>
>>>>
>>>> .
>>>>
>>>
>>
>>
>>
>>--
>>
>>Best regards,
>>Kathleen
>



--=20

Best regards,
Kathleen


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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com>
CC: "Benoit Claise (bclaise)" <bclaise@cisco.com>, The IESG <iesg@ietf.org>, "draft-ietf-rtgwg-routing-types@ietf.org" <draft-ietf-rtgwg-routing-types@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, Jeff Tantsura <jefftant.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: Kathleen Moriarty's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
Thread-Topic: Kathleen Moriarty's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
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From nobody Wed Oct 11 14:29:52 2017
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Subject: Warren Kumari's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
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Warren Kumari has entered the following ballot position for
draft-ietf-rtgwg-uloop-delay-07: No Objection

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

Section 1.  Introduction:
"That means that all non-D neighbors of S on the
   topology will send to S any traffic destined to D if a neighbor did
   not, then that neighbor would be loop-free."
 -- I was unable to parse the above. I may just be overtired, but it feels like
 there are some missing words.

Nits:
" When S-D fails, a transient forwarding loop may appear between S and
   B if S updates its forwarding entry to D before B."
 -- Perhaps "... entry to D before B does." or "... before B updates its
 forwarding entry"?

Section 2.1.  Fast reroute inefficiency
"On the  router C, the nexthop to D is the tunnel T thanks to the IGP 
shortcut." s/the//

"On C, the tail-end of the TE tunnel (router B) is no more on the shortest-path
tree (SPT) to D, ..." s/is no more on/is no longer on/ (related) "... so C does
not encapsulate anymore the traffic to D..." s/does not encapsulate anymore/no
longer encapsulates/

Section 3.  Overview of the solution
"This ordered convergence, is similar to the ordered FIB ..."
s/,/ (superfluous).



From nobody Wed Oct 11 14:42:33 2017
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From: Eric Rescorla <ekr@rtfm.com>
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Subject: Eric Rescorla's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
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Eric Rescorla has entered the following ballot position for
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Line 115
   Consider the case in Figure 1 where S does not have an LFA to protect
   its traffic to D.  That means that all non-D neighbors of S on the
You need to define LFA.

Line 118
   topology will send to S any traffic destined to D if a neighbor did
   not, then that neighbor would be loop-free.  Regardless of the
   advanced fast-reroute (FRR) technique used, when S converges to the
This is not a grammatical sentence.

Line 132
        S ------ B
             1
        Figure 1
What do the numbers in this box mean? I assume they are route metrics, but you
need to say so.

Line 136
   When S-D fails, a transient forwarding loop may appear between S and
   B if S updates its forwarding entry to D before B.
Something seems to have gone badly wrong with this paragraph. Are these lines
supposed to be in the previous paragraph.

Line 326
      unstable.  As an example, [I-D.ietf-rtgwg-backoff-algo] defines a
      standard SPF delay algorithm.
You need to define SPF here.

Line 338
   1.  The Up/Down event is notified to the IGP.
Usually, one would say that the IGP is notified of...

Line 552
           S

             Figure 7
Is this the same as the previous figure with T running CEAB?



From nobody Wed Oct 11 17:44:07 2017
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Adam Roach has entered the following ballot position for
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Section 2:

Are these types in any particular order? If not, you might consider
alphabetizing them to make thing easier to find.

   uint24
      This type defines a 24-bit unsigned integer.  It is used by
      target="I-D.ietf-ospf-yang"/>.

There appears to be some XML damage here.

____

There are several patterns in the YANG definition that perform significant
restriction of numbers (e.g., to ensure they don't fall outside the range that
can be stored in 16 or 32 bits). In many cases, these patterns include the
ability to zero-prefix some (but not all) decimal values. For example, the
production for route-origin would allow leading zeros in "2:0100:0555" but not
in "2:04294967295:065535" (even though "2:4294967295:65535" is okay). I don't
know offhand whether it makes sense to allow leading zeros in these fields, but
I would argue that the production should be consistent in allowing or
disallowing them. This issue arises in various forms in route-target,
ipv6-route-target, route-origin, and ipv6-route-origin.

The definition of bandwidth-ieee-float32 includes the following text:

          The encoding format is the external hexadecimal-significant
          character sequences specified in IEEE 754 and C99. The
          format is restricted to be normalized, non-negative, and
          non-fraction: 0x1.hhhhhhp{+}d or 0X1.HHHHHHP{+}D
          where 'h' and 'H' are hexadecimal digits, 'd' and 'D' are
          integers in the range of [0..127].

Notably, this prose clearly says that values can start with "0x1" and "0X1",
but not "0x0" or "0X0" -- while the pattern production does allow 0x0, and the
examples even include values starting with 0x0. The quoted prose above should
be re-worked so it also allows values starting with 0x0 and 0X0.



From nobody Wed Oct 11 17:59:17 2017
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From: Alvaro Retana <aretana.ietf@gmail.com>
Date: Wed, 11 Oct 2017 20:59:05 -0400
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Subject: Re: Alvaro Retana's Discuss on draft-ietf-rtgwg-uloop-delay-07: (with DISCUSS and COMMENT)
To: stephane.litkowski@orange.com
Cc: The IESG <iesg@ietf.org>, "draft-ietf-rtgwg-uloop-delay@ietf.org" <draft-ietf-rtgwg-uloop-delay@ietf.org>,  "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>,  "chrisbowers.ietf@gmail.com" <chrisbowers.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
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--001a113de87a088671055b4f0c84
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On Wed, Oct 11, 2017 at 5:07 AM, <stephane.litkowski@orange.com> wrote:

Stephane:

Hi!

...

> ----------------------------------------------------------------------
> DISCUSS:
> ----------------------------------------------------------------------
>
> Section 5.1. (Definitions) refers to a couple of =E2=80=9Cexisting IGP ti=
mers=E2=80=9D.  I
> understand the concepts, but can you please reference the IGP documents
> where these timers are defined?  I quickly checked rfc2328 and couldn=E2=
=80=99t
> find a specific place that talked about LSP_GEN_TIMER (or LSA, of course!=
),
> or a similar concept.  SPF_DELAY seems to be introduced by
> I-D.ietf-rtgwg-backoff-algo.  Given that the rest of Section 5.
> (Specification) is built on these =E2=80=9Cexisting IGP timers=E2=80=9D, =
I think that the
> references should be Normative.
>
> [SLI] ISIS does have the minimumLSPGenerationInterval defined in the ISO
> specification. I will add it. For OSPF, I do not see the equivalent in th=
e
> base spec. I will check with Acee if he knows some references or if it's
> purely local features that have been implemented.
>

This is the definition from 10589:

minimumLSPGenerationInterval =E2=80=93 This is the minimum time interval be=
tween
generation of Link State PDUs. A source Intermediate system shall wait at
least this long before re-generating one of its own Link State PDUs.


That is not the same as LSP_GEN_TIMER.

I get the impression that the only place where  that documents it might be
I-D.ietf-rtgwg-backoff-algo.



> Note also that the description in Section 5.2. (Current IGP reactions) is
> described (in 5.3) as the =E2=80=9Cstandard IP convergence=E2=80=9D and c=
arries a =E2=80=9CMUST=E2=80=9D
> associated with it.  It was mentioned (in 5.1) that the timers in questio=
n
> are =E2=80=9Coften associated with a damping mechanism=E2=80=9D, which is=
 not part of the
> base IGP specifications.
>
> [SLI] I agree with your point. I think that the "standard" word is badly
> used it and "regular" may be more appropriate.
> The behavior defined in 5.2 cannot be defined as a standard, as it clearl=
y
> depends on the implementation and additional timers may be involved.
> My proposal is to:
> - change the word "standard" to "regular" in section 5.3
> - change the title of Section 5.2 to "Regular IGP reaction" to accommodat=
e
> the change in 5.3
> - In 5.2, modify slightly the text as follows:
> " Upon a change of the status of an adjacency/link, the regular IGP
> convergence
>    behavior of the router advertising the event involves the following
> main steps: "
>
> It's important to keep the "MUST" in section 5.3, as applying the delay
> timer to complex outages is dangerous and may lead to side effects.
>

Yes, the changes are fine.  The MUST being there is needed (I agree) --
that is what makes the reference needed to be Normative.


>
>
>
>
> I=E2=80=99m putting this comment in as a DISCUSS given that understanding=
 the
> definitions (and having then Normative references) is necessary for the
> implementation of the mechanism described.  I think it should be easy to
> resolve by just adding the appropriate references.
>
>
> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
>
> ...
> (2) Section 5.4. (Local delay for link down) specifies that =E2=80=9Cupda=
te of the
> RIB and the FIB SHOULD be delayed for ULOOP_DELAY_DOWN_TIMER msecs.
> Otherwise, the RIB and FIB SHOULD be updated immediately.=E2=80=9D  When =
would
> ULOOP_DELAY_DOWN_TIMER not be applied?
> [SLI] The text states " If the
>       condition of a single local link-down event has been met ". The
> "otherwise" is linked to this statement. This means that the FIB/RIB SHOU=
LD
> be updated immediately when this condition is not met.
>

Sorry, that question was for the first "SHOULD":

In "update of the RIB and the FIB SHOULD be delayed for
ULOOP_DELAY_DOWN_TIMER msecs", when would you not delay?  Why is that not a
"MUST"?


> (2)Along the same lines, if there=E2=80=99s no delay mentioned in Step 5 =
of 5.3,
> when would the RIB/FIB not be updated immediately?  IOW, why are these
> =E2=80=9CSHOULDs=E2=80=9D not =E2=80=9CMUSTs=E2=80=9D?
> [SLI] Do you refer to 5.2 (and not 5.3) as there is no Step 5 in 5.3. In
> 5.2, the RIB/FIB are updated immediately after the SPF computation.
>

Yes, 5.2.

Right, 5.2 says that the RIB/FIB are updated immediately, but the text in
5.4 only says that it "SHOULD" -- why is that not a "MUST"?  Are there
cases when it wouldn't?


Thanks!

Alvaro.

--001a113de87a088671055b4f0c84
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div><div>On Wed, Oct 11, 2017 at 5:07 AM,  <span dir=3D"l=
tr">&lt;<a href=3D"mailto:stephane.litkowski@orange.com" target=3D"_blank">=
stephane.litkowski@orange.com</a>&gt;</span> wrote:<br><br></div>Stephane:<=
br><br></div>Hi!<br><span class=3D"gmail-"></span><br>...<br><span class=3D=
"gmail-"></span><div><div><div><div class=3D"gmail_extra"><div class=3D"gma=
il_quote"><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8=
ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span class=3D"=
gmail-">
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
DISCUSS:<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
<br>
Section 5.1. (Definitions) refers to a couple of =E2=80=9Cexisting IGP time=
rs=E2=80=9D.=C2=A0 I understand the concepts, but can you please reference =
the IGP documents where these timers are defined?=C2=A0 I quickly checked r=
fc2328 and couldn=E2=80=99t find a specific place that talked about LSP_GEN=
_TIMER (or LSA, of course!), or a similar concept.=C2=A0 SPF_DELAY seems to=
 be introduced by I-D.ietf-rtgwg-backoff-algo.=C2=A0 Given that the rest of=
 Section 5. (Specification) is built on these =E2=80=9Cexisting IGP timers=
=E2=80=9D, I think that the references should be Normative.<br>
<br>
</span>[SLI] ISIS does have the minimumLSPGenerationInterval defined in the=
 ISO specification. I will add it. For OSPF, I do not see the equivalent in=
 the base spec. I will check with Acee if he knows some references or if it=
&#39;s purely local features that have been implemented.<br></blockquote><d=
iv><br></div><div>This is the definition from 10589:</div><div><br></div><d=
iv>minimumLSPGenerationInterval =E2=80=93 This is the minimum time interval=
 between generation of Link State PDUs. A source Intermediate system shall =
wait at least this long before re-generating one of its own Link State PDUs=
.</div><div><br></div><div><br></div><div>That is not the same as LSP_GEN_T=
IMER.<br></div><div><br></div><div>I get the impression that the only place=
 where=C2=A0 that documents it might be I-D.ietf-rtgwg-backoff-algo.</div><=
div><br></div><div>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"m=
argin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left=
:1ex">
<span class=3D"gmail-">Note also that the description in Section 5.2. (Curr=
ent IGP reactions) is described (in 5.3) as the =E2=80=9Cstandard IP conver=
gence=E2=80=9D and carries a =E2=80=9CMUST=E2=80=9D<br>
associated with it.=C2=A0 It was mentioned (in 5.1) that the timers in ques=
tion are =E2=80=9Coften associated with a damping mechanism=E2=80=9D, which=
 is not part of the base IGP specifications.<br>
<br>
</span>[SLI] I agree with your point. I think that the &quot;standard&quot;=
 word is badly used it and &quot;regular&quot; may be more appropriate.<br>
The behavior defined in 5.2 cannot be defined as a standard, as it clearly =
depends on the implementation and additional timers may be involved.<br>
My proposal is to:<br>
- change the word &quot;standard&quot; to &quot;regular&quot; in section 5.=
3<br>
- change the title of Section 5.2 to &quot;Regular IGP reaction&quot; to ac=
commodate the change in 5.3<br>
- In 5.2, modify slightly the text as follows:<br>
&quot; Upon a change of the status of an adjacency/link, the regular IGP co=
nvergence<br>
=C2=A0 =C2=A0behavior of the router advertising the event involves the foll=
owing main steps: &quot;<br>
<br>
It&#39;s important to keep the &quot;MUST&quot; in section 5.3, as applying=
 the delay timer to complex outages is dangerous and may lead to side effec=
ts.<br></blockquote><div><br></div><div>Yes, the changes are fine.=C2=A0 Th=
e MUST being there is needed (I agree) -- that is what makes the reference =
needed to be Normative.<br></div><div>=C2=A0</div><blockquote class=3D"gmai=
l_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,20=
4,204);padding-left:1ex">
<span class=3D"gmail-"><br>
<br>
<br>
<br>
I=E2=80=99m putting this comment in as a DISCUSS given that understanding t=
he definitions (and having then Normative references) is necessary for the =
implementation of the mechanism described.=C2=A0 I think it should be easy =
to resolve by just adding the appropriate references.<br>
<br>
<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
COMMENT:<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
<br></span><span class=3D"gmail-">...<br>
(2) Section 5.4. (Local delay for link down) specifies that =E2=80=9Cupdate=
 of the RIB and the FIB SHOULD be delayed for ULOOP_DELAY_DOWN_TIMER msecs.=
=C2=A0 Otherwise, the RIB and FIB SHOULD be updated immediately.=E2=80=9D=
=C2=A0 When would ULOOP_DELAY_DOWN_TIMER not be applied?<br>
</span>[SLI] The text states &quot; If the<br>
=C2=A0 =C2=A0 =C2=A0 condition of a single local link-down event has been m=
et &quot;. The &quot;otherwise&quot; is linked to this statement. This mean=
s that the FIB/RIB SHOULD be updated immediately when this condition is not=
 met.<br></blockquote><div><br></div><div>Sorry, that question was for the =
first &quot;SHOULD&quot;:</div><div><br></div><div>In &quot;update of the R=
IB and the FIB SHOULD be delayed for ULOOP_DELAY_DOWN_TIMER msecs&quot;, wh=
en would you not delay?=C2=A0 Why is that not a &quot;MUST&quot;?<br></div>=
<div>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px =
0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
(2)Along the same lines, if there=E2=80=99s no delay mentioned in Step 5 of=
 5.3, when would the RIB/FIB not be updated immediately?=C2=A0 IOW, why are=
 these =E2=80=9CSHOULDs=E2=80=9D not =E2=80=9CMUSTs=E2=80=9D?<br>
[SLI] Do you refer to 5.2 (and not 5.3) as there is no Step 5 in 5.3. In 5.=
2, the RIB/FIB are updated immediately after the SPF computation.<br></bloc=
kquote><div><br></div><div>Yes, 5.2.</div><div><br></div><div>Right, 5.2 sa=
ys that the RIB/FIB are updated immediately, but the text in 5.4 only says =
that it &quot;SHOULD&quot; -- why is that not a &quot;MUST&quot;?=C2=A0 Are=
 there cases when it wouldn&#39;t?<br></div><div>=C2=A0</div><div><br></div=
><div>Thanks!</div><div><br></div><div>Alvaro.<br></div></div></div></div><=
/div></div></div>

--001a113de87a088671055b4f0c84--


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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Adam Roach <adam@nostrum.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-rtgwg-routing-types@ietf.org" <draft-ietf-rtgwg-routing-types@ietf.org>, Jeff Tantsura <jefftant.ietf@gmail.com>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: Adam Roach's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
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From nobody Wed Oct 11 19:30:20 2017
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Subject: Ben Campbell's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Substantive Comments:

- General: Do I undertand correctly that this is a black-box implementation
detail? I note that section 4 explicitly says that it is a local-only feature
that does not require interoperability. If so, then standards track seems
inappropriate. BCP or informational seems to make more sense. Since there are
recommendations here, I think BCP is the right choice.  (I note Adam made a
similar comment.)

-11: Do you expect this section to stay in the RFC? It is likely to become
outdated rather quickly.

Editorial Comments:

- General: Please number the tables.

- sections 2 and 3 and their child sections have quite a few grammar errors.
Please proofread it again. I mention a few specifics below, but doubt I caught
everything.

- 2, first paragraph: " That means that all non-D neighbors of S on the
topology will send to S any traffic destined to D if a neighbor did not, then
that neighbor would be loop-free." I can't parse that sentence. Is it a run-on
sentence, or are there missing words? -- S / "can be work" / "can work"

-3: " may cause high damages for a network."
I suggest " may cause significant network damage".

-4, last paragraph: "This benefit comes at the expense of eliminating transient
forwarding loops involving the local router. " How is that an "expense"? Isn't
it the whole point?

-5.3, first paragraph and paragraph before figure 4:
The MUST is stated twice. Please avoid redundant normative statements. Even if
they agree now, they can cause maintenance issues down the road.



From nobody Wed Oct 11 19:41:50 2017
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From: Ben Campbell <ben@nostrum.com>
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Subject: Ben Campbell's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

I agree with Kathleen's comment about calling out or labeling elements likely
to have privacy or security implications.



From nobody Wed Oct 11 19:47:55 2017
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Subject: Ben Campbell's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Thanks for addressing my previous comments!



From nobody Wed Oct 11 21:13:06 2017
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Ben Campbell has entered the following ballot position for
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

(Oops, sorry, I entered the bit about addressing my comments for the wrong
draft.)

- General: Do I undertand correctly that this is a black-box implementation
detail? I note that section 4 explicitly says that it is a local-only feature
that does not require interoperability. If so, then standards track seems
inappropriate. BCP or informational seems to make more sense. Since there are
recommendations here, I think BCP is the right choice.  (I note Adam made a
similar comment.)

-11: Do you expect this section to stay in the RFC? It is likely to become
outdated rather quickly.

Editorial Comments:

- General: Please number the tables.

- sections 2 and 3 and their child sections have quite a few grammar errors.
Please proofread it again. I mention a few specifics below, but doubt I caught
everything.

- 2, first paragraph: " That means that all non-D neighbors of S on the
topology will send to S any traffic destined to D if a neighbor did not, then
that neighbor would be loop-free." I can't parse that sentence. Is it a run-on
sentence, or are there missing words? -- S / "can be work" / "can work"

-3: " may cause high damages for a network."
I suggest " may cause significant network damage".

-4, last paragraph: "This benefit comes at the expense of eliminating transient
forwarding loops involving the local router. " How is that an "expense"? Isn't
it the whole point?

-5.3, first paragraph and paragraph before figure 4:
The MUST is stated twice. Please avoid redundant normative statements. Even if
they agree now, they can cause maintenance issues down the road.



From nobody Wed Oct 11 23:47:55 2017
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From: <stephane.litkowski@orange.com>
To: Alvaro Retana <aretana.ietf@gmail.com>
CC: The IESG <iesg@ietf.org>, "draft-ietf-rtgwg-uloop-delay@ietf.org" <draft-ietf-rtgwg-uloop-delay@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "chrisbowers.ietf@gmail.com" <chrisbowers.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>, "Acee Lindem (acee) (acee@cisco.com)" <acee@cisco.com>
Subject: RE: Alvaro Retana's Discuss on draft-ietf-rtgwg-uloop-delay-07: (with DISCUSS and COMMENT)
Thread-Topic: Alvaro Retana's Discuss on draft-ietf-rtgwg-uloop-delay-07: (with DISCUSS and COMMENT)
Thread-Index: AQHTQgl2nftSREwoOEyh3YJkmj42GKLeV4YAgADteYCAAIE/oA==
Date: Thu, 12 Oct 2017 06:47:42 +0000
Message-ID: <26205_1507790863_59DF100F_26205_313_1_9E32478DFA9976438E7A22F69B08FF921EA86D8A@OPEXCLILMA4.corporate.adroot.infra.ftgroup>
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From nobody Wed Oct 11 23:50:36 2017
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From: <stephane.litkowski@orange.com>
To: Warren Kumari <warren@kumari.net>, The IESG <iesg@ietf.org>
CC: "draft-ietf-rtgwg-uloop-delay@ietf.org" <draft-ietf-rtgwg-uloop-delay@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "chrisbowers.ietf@gmail.com" <chrisbowers.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: RE: Warren Kumari's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
Thread-Topic: Warren Kumari's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
Thread-Index: AQHTQtgQ3FLiD1J4Lk+9wEKviLnGVaLfxwBA
Date: Thu, 12 Oct 2017 06:50:26 +0000
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From: <stephane.litkowski@orange.com>
To: Eric Rescorla <ekr@rtfm.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-rtgwg-uloop-delay@ietf.org" <draft-ietf-rtgwg-uloop-delay@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "chrisbowers.ietf@gmail.com" <chrisbowers.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: RE: Eric Rescorla's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
Thread-Topic: Eric Rescorla's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
Thread-Index: AQHTQtnZFQDWkb2qjES+hnOFaJkLGKLfyKaQ
Date: Thu, 12 Oct 2017 07:04:28 +0000
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From nobody Thu Oct 12 00:11:33 2017
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From: <stephane.litkowski@orange.com>
To: Ben Campbell <ben@nostrum.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-rtgwg-uloop-delay@ietf.org" <draft-ietf-rtgwg-uloop-delay@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "chrisbowers.ietf@gmail.com" <chrisbowers.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: RE: Ben Campbell's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
Thread-Topic: Ben Campbell's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
Thread-Index: AQHTQxBpVNJO0PvcO0GJhjzke28HZqLfy+kA
Date: Thu, 12 Oct 2017 07:11:19 +0000
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From nobody Thu Oct 12 00:16:24 2017
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Subject: I-D Action: draft-ietf-rtgwg-uloop-delay-08.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 Routing Area Working Group WG of the IETF.

        Title           : Micro-loop prevention by introducing a local convergence delay
        Authors         : Stephane Litkowski
                          Bruno Decraene
                          Clarence Filsfils
                          Pierre Francois
	Filename        : draft-ietf-rtgwg-uloop-delay-08.txt
	Pages           : 27
	Date            : 2017-10-12

Abstract:
   This document describes a mechanism for link-state routing protocols
   to prevent local transient forwarding loops in case of link failure.
   This mechanism proposes a two-step convergence by introducing a delay
   between the convergence of the node adjacent to the topology change
   and the network wide convergence.

   As this mechanism delays the IGP convergence it may only be used for
   planned maintenance or when fast reroute protects the traffic between
   the link failure time and the IGP convergence.

   The proposed mechanism is limited to the link down event in order to
   keep the mechanism simple.

   Simulations using real network topologies have been performed and
   show that local loops are a significant portion (>50%) of the total
   forwarding loops.



The IETF datatracker status page for this draft is:
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A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-uloop-delay-08


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From nobody Thu Oct 12 06:20:42 2017
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Subject: Alissa Cooper's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
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Alissa Cooper has entered the following ballot position for
draft-ietf-rtgwg-routing-types-16: No Objection

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

This is a small thing, but in general I think it would be preferable not to
embed the name "iana" in identifiers that can be consumed programmatically (the
namespace URN and module name). What distinguishes the iana-routing-types
module seems to be that the types define values for address family identifiers,
not the fact that the registries containing those identifiers happen to be
administered by IANA. If somebody else administered those registries it would
have no effect on the contents of the module.



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From: Eric Rescorla <ekr@rtfm.com>
Date: Thu, 12 Oct 2017 06:36:39 -0700
Message-ID: <CABcZeBPfGmSee9hN-CEdNZTewxtaGJQ=CRBhbfyc+VrqFVdQeQ@mail.gmail.com>
Subject: Re: Eric Rescorla's No Objection on draft-ietf-rtgwg-uloop-delay-07: (with COMMENT)
To: stephane.litkowski@orange.com
Cc: The IESG <iesg@ietf.org>, "draft-ietf-rtgwg-uloop-delay@ietf.org" <draft-ietf-rtgwg-uloop-delay@ietf.org>,  "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>,  "chrisbowers.ietf@gmail.com" <chrisbowers.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
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--001a113cfcacb456ab055b59a3ea
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On Thu, Oct 12, 2017 at 12:04 AM, <stephane.litkowski@orange.com> wrote:

> Hi Eric,
>
> Thanks for your review, I will take care of your comments.
>
> " Line 136
>    When S-D fails, a transient forwarding loop may appear between S and
>    B if S updates its forwarding entry to D before B.
> Something seems to have gone badly wrong with this paragraph. Are these
> lines supposed to be in the previous paragraph."
>
> [SLI] This is the postamble of the figure and not really a paragraph.
>

It's also not really readable in the context of that paragraph.


"             Figure 7
> Is this the same as the previous figure with T running CEAB?
> "
>
> [SLI] What figure are you talking about when saying "the previous" ?
> I think there is a copy/paste issue. The tunnel T is not used here.
>

Hmm...I seem to have reviewed -06.

>
>
> Brgds,
>
>
> -----Original Message-----
> From: Eric Rescorla [mailto:ekr@rtfm.com]
> Sent: Wednesday, October 11, 2017 23:43
> To: The IESG
> Cc: draft-ietf-rtgwg-uloop-delay@ietf.org; rtgwg-chairs@ietf.org;
> chrisbowers.ietf@gmail.com; rtgwg@ietf.org
> Subject: Eric Rescorla's No Objection on draft-ietf-rtgwg-uloop-delay-07:
> (with COMMENT)
>
> Eric Rescorla has entered the following ballot position for
> draft-ietf-rtgwg-uloop-delay-07: No Objection
>
> When responding, please keep the subject line intact and reply to all
> email addresses included in the To and CC lines. (Feel free to cut this
> introductory paragraph, however.)
>
>
> Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html
> for more information about IESG DISCUSS and COMMENT positions.
>
>
> The document, along with other ballot positions, can be found here:
> https://datatracker.ietf.org/doc/draft-ietf-rtgwg-uloop-delay/
>
>
>
> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
>
> Line 115
>    Consider the case in Figure 1 where S does not have an LFA to protect
>    its traffic to D.  That means that all non-D neighbors of S on the You
> need to define LFA.
>
> Line 118
>    topology will send to S any traffic destined to D if a neighbor did
>    not, then that neighbor would be loop-free.  Regardless of the
>    advanced fast-reroute (FRR) technique used, when S converges to the
> This is not a grammatical sentence.
>
> Line 132
>         S ------ B
>              1
>         Figure 1
> What do the numbers in this box mean? I assume they are route metrics, but
> you need to say so.
>
> Line 136
>    When S-D fails, a transient forwarding loop may appear between S and
>    B if S updates its forwarding entry to D before B.
> Something seems to have gone badly wrong with this paragraph. Are these
> lines supposed to be in the previous paragraph.
>
> Line 326
>       unstable.  As an example, [I-D.ietf-rtgwg-backoff-algo] defines a
>       standard SPF delay algorithm.
> You need to define SPF here.
>
> Line 338
>    1.  The Up/Down event is notified to the IGP.
> Usually, one would say that the IGP is notified of...
>
> Line 552
>            S
>
>              Figure 7
> Is this the same as the previous figure with T running CEAB?
>
>
>
> ____________________________________________________________
> _____________________________________________________________
>
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> electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme ou
> falsifie. Merci.
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>

--001a113cfcacb456ab055b59a3ea
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Thu, Oct 12, 2017 at 12:04 AM,  <span dir=3D"ltr">&lt;<a href=3D"mai=
lto:stephane.litkowski@orange.com" target=3D"_blank">stephane.litkowski@ora=
nge.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D=
"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Eric,<br=
>
<br>
Thanks for your review, I will take care of your comments.<br>
<span class=3D""><br>
&quot; Line 136<br>
=C2=A0 =C2=A0When S-D fails, a transient forwarding loop may appear between=
 S and<br>
=C2=A0 =C2=A0B if S updates its forwarding entry to D before B.<br>
Something seems to have gone badly wrong with this paragraph. Are these lin=
es supposed to be in the previous paragraph.&quot;<br>
<br>
</span>[SLI] This is the postamble of the figure and not really a paragraph=
.<br></blockquote><div><br></div><div>It&#39;s also not really readable in =
the context of that paragraph.</div><div><br></div><div><br></div><blockquo=
te class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc so=
lid;padding-left:1ex"><span class=3D"">
&quot;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Figure 7<br>
Is this the same as the previous figure with T running CEAB?<br>
&quot;<br>
<br>
</span>[SLI] What figure are you talking about when saying &quot;the previo=
us&quot; ?<br>
I think there is a copy/paste issue. The tunnel T is not used here.<br></bl=
ockquote><div><br></div><div>Hmm...I seem to have reviewed -06.=C2=A0</div>=
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<br>
<br>
Brgds,<br>
<div><div class=3D"h5"><br>
<br>
-----Original Message-----<br>
From: Eric Rescorla [mailto:<a href=3D"mailto:ekr@rtfm.com">ekr@rtfm.com</a=
>]<br>
Sent: Wednesday, October 11, 2017 23:43<br>
To: The IESG<br>
Cc: <a href=3D"mailto:draft-ietf-rtgwg-uloop-delay@ietf.org">draft-ietf-rtg=
wg-uloop-delay@<wbr>ietf.org</a>; <a href=3D"mailto:rtgwg-chairs@ietf.org">=
rtgwg-chairs@ietf.org</a>; <a href=3D"mailto:chrisbowers.ietf@gmail.com">ch=
risbowers.ietf@gmail.com</a>; <a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.=
org</a><br>
Subject: Eric Rescorla&#39;s No Objection on draft-ietf-rtgwg-uloop-delay-<=
wbr>07: (with COMMENT)<br>
<br>
Eric Rescorla has entered the following ballot position for<br>
draft-ietf-rtgwg-uloop-delay-<wbr>07: No Objection<br>
<br>
When responding, please keep the subject line intact and reply to all email=
 addresses included in the To and CC lines. (Feel free to cut this introduc=
tory paragraph, however.)<br>
<br>
<br>
Please refer to <a href=3D"https://www.ietf.org/iesg/statement/discuss-crit=
eria.html" rel=3D"noreferrer" target=3D"_blank">https://www.ietf.org/iesg/<=
wbr>statement/discuss-criteria.<wbr>html</a><br>
for more information about IESG DISCUSS and COMMENT positions.<br>
<br>
<br>
The document, along with other ballot positions, can be found here:<br>
<a href=3D"https://datatracker.ietf.org/doc/draft-ietf-rtgwg-uloop-delay/" =
rel=3D"noreferrer" target=3D"_blank">https://datatracker.ietf.org/<wbr>doc/=
draft-ietf-rtgwg-uloop-<wbr>delay/</a><br>
<br>
<br>
<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
COMMENT:<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
<br>
Line 115<br>
=C2=A0 =C2=A0Consider the case in Figure 1 where S does not have an LFA to =
protect<br>
=C2=A0 =C2=A0its traffic to D.=C2=A0 That means that all non-D neighbors of=
 S on the You need to define LFA.<br>
<br>
Line 118<br>
=C2=A0 =C2=A0topology will send to S any traffic destined to D if a neighbo=
r did<br>
=C2=A0 =C2=A0not, then that neighbor would be loop-free.=C2=A0 Regardless o=
f the<br>
=C2=A0 =C2=A0advanced fast-reroute (FRR) technique used, when S converges t=
o the This is not a grammatical sentence.<br>
<br>
Line 132<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 S ------ B<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A01<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Figure 1<br>
What do the numbers in this box mean? I assume they are route metrics, but =
you need to say so.<br>
<br>
Line 136<br>
=C2=A0 =C2=A0When S-D fails, a transient forwarding loop may appear between=
 S and<br>
=C2=A0 =C2=A0B if S updates its forwarding entry to D before B.<br>
Something seems to have gone badly wrong with this paragraph. Are these lin=
es supposed to be in the previous paragraph.<br>
<br>
Line 326<br>
=C2=A0 =C2=A0 =C2=A0 unstable.=C2=A0 As an example, [I-D.ietf-rtgwg-backoff=
-algo] defines a<br>
=C2=A0 =C2=A0 =C2=A0 standard SPF delay algorithm.<br>
You need to define SPF here.<br>
<br>
Line 338<br>
=C2=A0 =C2=A01.=C2=A0 The Up/Down event is notified to the IGP.<br>
Usually, one would say that the IGP is notified of...<br>
<br>
Line 552<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0S<br>
<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Figure 7<br>
Is this the same as the previous figure with T running CEAB?<br>
<br>
<br>
<br>
</div></div>______________________________<wbr>____________________________=
__<wbr>______________________________<wbr>______________________________<wb=
r>_<br>
<br>
Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc<br>
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler<br>
a l&#39;expediteur et le detruire ainsi que les pieces jointes. Les message=
s electroniques etant susceptibles d&#39;alteration,<br>
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.<br>
<br>
This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;<br>
they should not be distributed, used or copied without authorisation.<br>
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.<br>
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.<br>
Thank you.<br>
<br>
</blockquote></div><br></div></div>

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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Alissa Cooper <alissa@cooperw.in>, The IESG <iesg@ietf.org>
CC: "draft-ietf-rtgwg-routing-types@ietf.org" <draft-ietf-rtgwg-routing-types@ietf.org>, Jeff Tantsura <jefftant.ietf@gmail.com>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: Alissa Cooper's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
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From: Alvaro Retana <aretana.ietf@gmail.com>
Date: Thu, 12 Oct 2017 09:56:45 -0400
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Subject: Re: Alvaro Retana's Discuss on draft-ietf-rtgwg-uloop-delay-07: (with DISCUSS and COMMENT)
To: stephane.litkowski@orange.com
Cc: The IESG <iesg@ietf.org>, "draft-ietf-rtgwg-uloop-delay@ietf.org" <draft-ietf-rtgwg-uloop-delay@ietf.org>,  "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>,  "chrisbowers.ietf@gmail.com" <chrisbowers.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>,  "Acee Lindem (acee) (acee@cisco.com)" <acee@cisco.com>
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On Thu, Oct 12, 2017 at 2:47 AM, <stephane.litkowski@orange.com> wrote:

Hi!

The minimumLSPGenerationInterval is IMO the LSP_GEN_TIMER we are
> describing. It controls the pacing of the local LSP generation. In ISO
> 10589, it is a fixed timer value while now implementations are often usin=
g
> a damping mechanism associated with this timer rather than a fixed value.
>
>
>
> The MinLSInterval seems to be the equivalent in OSPF (I=E2=80=99m not an =
expert in
> OSPF, but Acee pointed this one to me). Again the backoff/damping is not
> defined as a standard. There is a BCP RFC 4222 but it does seem to addres=
s
> the MinLSInterval backoff.
>
>
>
> The I-D.ietf-rtgwg-backoff-algo only controls the SPF delay, not the
> LSP_GEN_TIMER.
>
>
>
> Do you agree ?
>

No, I don't agree that LSP_GEN_TIMER is the same as
minimumLSPGenerationInterval
or MinLSInterval.

LSP_GEN_TIMER is described to "batch multiple local events in one single
local LSP/LSA update", but both minimumLSPGenerationInterval/MinLSInterval
are about regeneration of LSP/LSAs.  IOW, the description in 5.2

"2.  The IGP processes the notification and postpones the reaction for
       LSP_GEN_TIMER msec."

Is not right because minimumLSPGenerationInterval/MinLSInterval would not
delay the initial generation of an LSP/LSA.  That was my initial point, I
don't know where a timer like LSP_GEN_TIMER is defined for ISIS/OSPF -- one
that delays the initial generation of an LSP/LSA.




About SPF_DELAY...  Yes, I-D.ietf-rtgwg-backoff-algo is the only place
where I see SPF_DELAY defined -- which makes it an existing (documented)
timer.  I think that I-D.ietf-rtgwg-backoff-algo should then be a Normative
reference.

Note also that I-D.ietf-rtgwg-backoff-algo does define something that
sounds to me just like LSP_GEN_TIMER:

   TIME_TO_LEARN_INTERVAL: This is the maximum duration typically needed
   to learn all the IGP events related to a single component failure
   (e.g., router failure, SRLG failure), e.g., 1 second.  It's mostly
   dependent on failure detection time variation between all routers
   that are adjacent to the failure.  Additionally, it may depend on the
   different IGP implementations across the network, related to
   origination and flooding of their link state advertisements.


It seems that it should be the right reference.

Thanks!

Alvaro.


>
>
> Brgds,
>
>
>
> *From:* Alvaro Retana [mailto:aretana.ietf@gmail.com]
> *Sent:* Thursday, October 12, 2017 02:59
> *To:* LITKOWSKI Stephane OBS/OINIS
> *Cc:* The IESG; draft-ietf-rtgwg-uloop-delay@ietf.org;
> rtgwg-chairs@ietf.org; chrisbowers.ietf@gmail.com; rtgwg@ietf.org
> *Subject:* Re: Alvaro Retana's Discuss on draft-ietf-rtgwg-uloop-delay-07=
:
> (with DISCUSS and COMMENT)
>
>
>
> On Wed, Oct 11, 2017 at 5:07 AM, <stephane.litkowski@orange.com> wrote:
>
> Stephane:
>
> Hi!
>
> ...
>
> ----------------------------------------------------------------------
> DISCUSS:
> ----------------------------------------------------------------------
>
> Section 5.1. (Definitions) refers to a couple of =E2=80=9Cexisting IGP ti=
mers=E2=80=9D.  I
> understand the concepts, but can you please reference the IGP documents
> where these timers are defined?  I quickly checked rfc2328 and couldn=E2=
=80=99t
> find a specific place that talked about LSP_GEN_TIMER (or LSA, of course!=
),
> or a similar concept.  SPF_DELAY seems to be introduced by
> I-D.ietf-rtgwg-backoff-algo.  Given that the rest of Section 5.
> (Specification) is built on these =E2=80=9Cexisting IGP timers=E2=80=9D, =
I think that the
> references should be Normative.
>
> [SLI] ISIS does have the minimumLSPGenerationInterval defined in the ISO
> specification. I will add it. For OSPF, I do not see the equivalent in th=
e
> base spec. I will check with Acee if he knows some references or if it's
> purely local features that have been implemented.
>
>
>
> This is the definition from 10589:
>
>
>
> minimumLSPGenerationInterval =E2=80=93 This is the minimum time interval =
between
> generation of Link State PDUs. A source Intermediate system shall wait at
> least this long before re-generating one of its own Link State PDUs.
>
>
>
>
>
> That is not the same as LSP_GEN_TIMER.
>
>
>
> I get the impression that the only place where  that documents it might b=
e
> I-D.ietf-rtgwg-backoff-algo.
>
>
>
>
>
> Note also that the description in Section 5.2. (Current IGP reactions) is
> described (in 5.3) as the =E2=80=9Cstandard IP convergence=E2=80=9D and c=
arries a =E2=80=9CMUST=E2=80=9D
> associated with it.  It was mentioned (in 5.1) that the timers in questio=
n
> are =E2=80=9Coften associated with a damping mechanism=E2=80=9D, which is=
 not part of the
> base IGP specifications.
>
> [SLI] I agree with your point. I think that the "standard" word is badly
> used it and "regular" may be more appropriate.
> The behavior defined in 5.2 cannot be defined as a standard, as it clearl=
y
> depends on the implementation and additional timers may be involved.
> My proposal is to:
> - change the word "standard" to "regular" in section 5.3
> - change the title of Section 5.2 to "Regular IGP reaction" to accommodat=
e
> the change in 5.3
> - In 5.2, modify slightly the text as follows:
> " Upon a change of the status of an adjacency/link, the regular IGP
> convergence
>    behavior of the router advertising the event involves the following
> main steps: "
>
> It's important to keep the "MUST" in section 5.3, as applying the delay
> timer to complex outages is dangerous and may lead to side effects.
>
>
>
> Yes, the changes are fine.  The MUST being there is needed (I agree) --
> that is what makes the reference needed to be Normative.
>
>
>
>
>
>
>
> I=E2=80=99m putting this comment in as a DISCUSS given that understanding=
 the
> definitions (and having then Normative references) is necessary for the
> implementation of the mechanism described.  I think it should be easy to
> resolve by just adding the appropriate references.
>
>
> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
>
> ...
> (2) Section 5.4. (Local delay for link down) specifies that =E2=80=9Cupda=
te of the
> RIB and the FIB SHOULD be delayed for ULOOP_DELAY_DOWN_TIMER msecs.
> Otherwise, the RIB and FIB SHOULD be updated immediately.=E2=80=9D  When =
would
> ULOOP_DELAY_DOWN_TIMER not be applied?
> [SLI] The text states " If the
>       condition of a single local link-down event has been met ". The
> "otherwise" is linked to this statement. This means that the FIB/RIB SHOU=
LD
> be updated immediately when this condition is not met.
>
>
>
> Sorry, that question was for the first "SHOULD":
>
>
>
> In "update of the RIB and the FIB SHOULD be delayed for
> ULOOP_DELAY_DOWN_TIMER msecs", when would you not delay?  Why is that not=
 a
> "MUST"?
>
>
>
> (2)Along the same lines, if there=E2=80=99s no delay mentioned in Step 5 =
of 5.3,
> when would the RIB/FIB not be updated immediately?  IOW, why are these
> =E2=80=9CSHOULDs=E2=80=9D not =E2=80=9CMUSTs=E2=80=9D?
> [SLI] Do you refer to 5.2 (and not 5.3) as there is no Step 5 in 5.3. In
> 5.2, the RIB/FIB are updated immediately after the SPF computation.
>
>
>
> Yes, 5.2.
>
>
>
> Right, 5.2 says that the RIB/FIB are updated immediately, but the text in
> 5.4 only says that it "SHOULD" -- why is that not a "MUST"?  Are there
> cases when it wouldn't?
>
>
>
>
>
> Thanks!
>
>
>
> Alvaro.
>
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<div dir=3D"ltr"><div>On Thu, Oct 12, 2017 at 2:47 AM,  <span dir=3D"ltr">&=
lt;<a href=3D"mailto:stephane.litkowski@orange.com" target=3D"_blank">steph=
ane.litkowski@orange.com</a>&gt;</span> wrote:<br><br></div>Hi!<br><div><br=
><div class=3D"gmail_extra"><div class=3D"gmail_quote"><blockquote class=3D=
"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(2=
04,204,204);padding-left:1ex">





<div lang=3D"EN-US">
<div class=3D"gmail-m_6259302594425491849WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:&quot;Cali=
bri&quot;,&quot;sans-serif&quot;;color:rgb(31,73,125)"></span><span style=
=3D"font-size:11pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;c=
olor:rgb(31,73,125)"></span><span style=3D"font-size:11pt;font-family:&quot=
;Calibri&quot;,&quot;sans-serif&quot;;color:rgb(31,73,125)">The
</span>minimumLSPGenerationInterval is IMO the LSP_GEN_TIMER we are describ=
ing. It controls the pacing of the local LSP generation. In ISO 10589, it i=
s a fixed timer value while now implementations are often using a damping m=
echanism associated with this timer
 rather than a fixed value.
</p><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">The MinLSInterval seems to be the equivalent in OSPF=
 (I=E2=80=99m not an expert in OSPF, but Acee pointed this one to me). Agai=
n the backoff/damping is not defined as a standard. There is a BCP RFC 4222=
 but it does seem to address the MinLSInterval
 backoff.<u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:&quot;Cali=
bri&quot;,&quot;sans-serif&quot;;color:rgb(31,73,125)"><u></u>=C2=A0<u></u>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:&quot;Cali=
bri&quot;,&quot;sans-serif&quot;;color:rgb(31,73,125)">The
</span>I-D.ietf-rtgwg-backoff-algo only controls the SPF delay, not the LSP=
_GEN_TIMER.<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Do you agree ?</p></div></div></blockquote><div><br>=
</div><div>No, I don&#39;t agree that LSP_GEN_TIMER is the same as <span st=
yle=3D"font-size:11pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot=
;;color:rgb(31,73,125)"></span>minimumLSPGenerationInterval or MinLSInterva=
l.</div><div><br></div><div>LSP_GEN_TIMER is described to &quot;batch multi=
ple local events in one single local LSP/LSA update&quot;, but both minimum=
LSPGenerationInterval/MinLSInterval are about regeneration of LSP/LSAs.=C2=
=A0 IOW, the description in 5.2<br></div><div><br></div><div>&quot;2.=C2=A0=
 The IGP processes the notification and postpones the reaction for<br>=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 LSP_GEN_TIMER msec.&quot;<br></div><div><=
br></div><div>Is not right because minimumLSPGenerationInterval/MinLSInterv=
al would not delay the initial generation of an LSP/LSA.=C2=A0 That was my =
initial point, I don&#39;t know where a timer like LSP_GEN_TIMER is defined=
 for ISIS/OSPF -- one that delays the initial generation of an LSP/LSA.</di=
v><div><br></div><div><br></div><div><br></div><div><br></div><div>About SP=
F_DELAY...=C2=A0 Yes, I-D.ietf-rtgwg-backoff-algo is the only place where I=
 see SPF_DELAY defined -- which makes it an existing (documented) timer.=C2=
=A0 I think that I-D.ietf-rtgwg-backoff-algo should then be a Normative ref=
erence.</div><div><br></div><div>Note also that I-D.ietf-rtgwg-backoff-algo=
 does define something that sounds to me just like LSP_GEN_TIMER:</div><div=
><br></div><div><pre class=3D"gmail-newpage">   TIME_TO_LEARN_INTERVAL: Thi=
s is the maximum duration typically needed
   to learn all the IGP events related to a single component failure
   (e.g., router failure, SRLG failure), e.g., 1 second.  It&#39;s mostly
   dependent on failure detection time variation between all routers
   that are adjacent to the failure.  Additionally, it may depend on the
   different IGP implementations across the network, related to
   origination and flooding of their link state advertisements.
<br></pre></div><div><br></div><div>It seems that it should be the right re=
ference.</div><div><br></div><div>Thanks!</div><div><br></div><div>Alvaro.<=
br></div><div>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"margin=
:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"=
><div lang=3D"EN-US"><div class=3D"gmail-m_6259302594425491849WordSection1"=
><p class=3D"MsoNormal"><u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Brgds,<span style=3D"font-size:11pt;font-family:&quo=
t;Calibri&quot;,&quot;sans-serif&quot;;color:rgb(31,73,125)"><u></u><u></u>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11pt;font-family:&quot;Cali=
bri&quot;,&quot;sans-serif&quot;;color:rgb(31,73,125)"><u></u>=C2=A0<u></u>=
</span></p>
<p class=3D"MsoNormal"><b><span style=3D"font-size:10pt;font-family:&quot;T=
ahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style=3D"font-siz=
e:10pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> Alvaro Retan=
a [mailto:<a href=3D"mailto:aretana.ietf@gmail.com" target=3D"_blank">areta=
na.ietf@gmail.com</a><wbr>]
<br>
<b>Sent:</b> Thursday, October 12, 2017 02:59<br>
<b>To:</b> LITKOWSKI Stephane OBS/OINIS<br>
<b>Cc:</b> The IESG; <a href=3D"mailto:draft-ietf-rtgwg-uloop-delay@ietf.or=
g" target=3D"_blank">draft-ietf-rtgwg-uloop-delay@<wbr>ietf.org</a>; <a hre=
f=3D"mailto:rtgwg-chairs@ietf.org" target=3D"_blank">rtgwg-chairs@ietf.org<=
/a>; <a href=3D"mailto:chrisbowers.ietf@gmail.com" target=3D"_blank">chrisb=
owers.ietf@gmail.com</a>; <a href=3D"mailto:rtgwg@ietf.org" target=3D"_blan=
k">rtgwg@ietf.org</a><br>
<b>Subject:</b> Re: Alvaro Retana&#39;s Discuss on draft-ietf-rtgwg-uloop-d=
elay-<wbr>07: (with DISCUSS and COMMENT)<u></u><u></u></span></p><div><div =
class=3D"gmail-h5">
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt">On Wed, Oct 11, 2017 at=
 5:07 AM, &lt;<a href=3D"mailto:stephane.litkowski@orange.com" target=3D"_b=
lank">stephane.litkowski@orange.com</a><wbr>&gt; wrote:<u></u><u></u></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt">Stephane:<u></u><u></u>=
</p>
</div>
<p class=3D"MsoNormal">Hi!<br>
<br>
...<u></u><u></u></p>
<div>
<div>
<div>
<div>
<div>
<blockquote style=3D"border-width:medium medium medium 1pt;border-style:non=
e none none solid;border-color:currentcolor currentcolor currentcolor rgb(2=
04,204,204);padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
<p class=3D"MsoNormal"><span class=3D"gmail-m_6259302594425491849gmail-">--=
----------------------------<wbr>------------------------------<wbr>-------=
---</span><br>
<span class=3D"gmail-m_6259302594425491849gmail-">DISCUSS:</span><br>
<span class=3D"gmail-m_6259302594425491849gmail-">-------------------------=
-----<wbr>------------------------------<wbr>----------</span><br>
<br>
<span class=3D"gmail-m_6259302594425491849gmail-">Section 5.1. (Definitions=
) refers to a couple of =E2=80=9Cexisting IGP timers=E2=80=9D.=C2=A0 I unde=
rstand the concepts, but can you please reference the IGP documents where t=
hese timers are defined?=C2=A0 I quickly checked rfc2328 and couldn=E2=80=
=99t find a specific place
 that talked about LSP_GEN_TIMER (or LSA, of course!), or a similar concept=
.=C2=A0 SPF_DELAY seems to be introduced by I-D.ietf-rtgwg-backoff-algo.=C2=
=A0 Given that the rest of Section 5. (Specification) is built on these =E2=
=80=9Cexisting IGP timers=E2=80=9D, I think that the references
 should be Normative.</span><br>
<br>
[SLI] ISIS does have the minimumLSPGenerationInterval defined in the ISO sp=
ecification. I will add it. For OSPF, I do not see the equivalent in the ba=
se spec. I will check with Acee if he knows some references or if it&#39;s =
purely local features that have been
 implemented.<u></u><u></u></p>
</blockquote>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">This is the definition from 10589:<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">minimumLSPGenerationInterval =E2=80=93 This is the m=
inimum time interval between generation of Link State PDUs. A source Interm=
ediate system shall wait at least this long before re-generating one of its=
 own Link State PDUs.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">That is not the same as LSP_GEN_TIMER.<u></u><u></u>=
</p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">I get the impression that the only place where=C2=A0=
 that documents it might be I-D.ietf-rtgwg-backoff-algo.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<blockquote style=3D"border-width:medium medium medium 1pt;border-style:non=
e none none solid;border-color:currentcolor currentcolor currentcolor rgb(2=
04,204,204);padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
<p class=3D"MsoNormal"><span class=3D"gmail-m_6259302594425491849gmail-">No=
te also that the description in Section 5.2. (Current IGP reactions) is des=
cribed (in 5.3) as the =E2=80=9Cstandard IP convergence=E2=80=9D and carrie=
s a =E2=80=9CMUST=E2=80=9D</span><br>
<span class=3D"gmail-m_6259302594425491849gmail-">associated with it.=C2=A0=
 It was mentioned (in 5.1) that the timers in question are =E2=80=9Coften a=
ssociated with a damping mechanism=E2=80=9D, which is not part of the base =
IGP specifications.</span><br>
<br>
[SLI] I agree with your point. I think that the &quot;standard&quot; word i=
s badly used it and &quot;regular&quot; may be more appropriate.<br>
The behavior defined in 5.2 cannot be defined as a standard, as it clearly =
depends on the implementation and additional timers may be involved.<br>
My proposal is to:<br>
- change the word &quot;standard&quot; to &quot;regular&quot; in section 5.=
3<br>
- change the title of Section 5.2 to &quot;Regular IGP reaction&quot; to ac=
commodate the change in 5.3<br>
- In 5.2, modify slightly the text as follows:<br>
&quot; Upon a change of the status of an adjacency/link, the regular IGP co=
nvergence<br>
=C2=A0 =C2=A0behavior of the router advertising the event involves the foll=
owing main steps: &quot;<br>
<br>
It&#39;s important to keep the &quot;MUST&quot; in section 5.3, as applying=
 the delay timer to complex outages is dangerous and may lead to side effec=
ts.<u></u><u></u></p>
</blockquote>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Yes, the changes are fine.=C2=A0 The MUST being ther=
e is needed (I agree) -- that is what makes the reference needed to be Norm=
ative.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<blockquote style=3D"border-width:medium medium medium 1pt;border-style:non=
e none none solid;border-color:currentcolor currentcolor currentcolor rgb(2=
04,204,204);padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
<p class=3D"MsoNormal"><br>
<br>
<br>
<br>
<span class=3D"gmail-m_6259302594425491849gmail-">I=E2=80=99m putting this =
comment in as a DISCUSS given that understanding the definitions (and havin=
g then Normative references) is necessary for the implementation of the mec=
hanism described.=C2=A0 I think it should be easy to resolve by just adding
 the appropriate references.</span><br>
<br>
<br>
<span class=3D"gmail-m_6259302594425491849gmail-">-------------------------=
-----<wbr>------------------------------<wbr>----------</span><br>
<span class=3D"gmail-m_6259302594425491849gmail-">COMMENT:</span><br>
<span class=3D"gmail-m_6259302594425491849gmail-">-------------------------=
-----<wbr>------------------------------<wbr>----------</span><br>
<br>
<span class=3D"gmail-m_6259302594425491849gmail-">...</span><br>
<span class=3D"gmail-m_6259302594425491849gmail-">(2) Section 5.4. (Local d=
elay for link down) specifies that =E2=80=9Cupdate of the RIB and the FIB S=
HOULD be delayed for ULOOP_DELAY_DOWN_TIMER msecs.=C2=A0 Otherwise, the RIB=
 and FIB SHOULD be updated immediately.=E2=80=9D=C2=A0 When would ULOOP_DEL=
AY_DOWN_TIMER
 not be applied?</span><br>
[SLI] The text states &quot; If the<br>
=C2=A0 =C2=A0 =C2=A0 condition of a single local link-down event has been m=
et &quot;. The &quot;otherwise&quot; is linked to this statement. This mean=
s that the FIB/RIB SHOULD be updated immediately when this condition is not=
 met.<u></u><u></u></p>
</blockquote>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Sorry, that question was for the first &quot;SHOULD&=
quot;:<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">In &quot;update of the RIB and the FIB SHOULD be del=
ayed for ULOOP_DELAY_DOWN_TIMER msecs&quot;, when would you not delay?=C2=
=A0 Why is that not a &quot;MUST&quot;?<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<blockquote style=3D"border-width:medium medium medium 1pt;border-style:non=
e none none solid;border-color:currentcolor currentcolor currentcolor rgb(2=
04,204,204);padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
<p class=3D"MsoNormal">(2)Along the same lines, if there=E2=80=99s no delay=
 mentioned in Step 5 of 5.3, when would the RIB/FIB not be updated immediat=
ely?=C2=A0 IOW, why are these =E2=80=9CSHOULDs=E2=80=9D not =E2=80=9CMUSTs=
=E2=80=9D?<br>
[SLI] Do you refer to 5.2 (and not 5.3) as there is no Step 5 in 5.3. In 5.=
2, the RIB/FIB are updated immediately after the SPF computation.<u></u><u>=
</u></p>
</blockquote>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Yes, 5.2.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Right, 5.2 says that the RIB/FIB are updated immedia=
tely, but the text in 5.4 only says that it &quot;SHOULD&quot; -- why is th=
at not a &quot;MUST&quot;?=C2=A0 Are there cases when it wouldn&#39;t?<u></=
u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Thanks!<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Alvaro.<u></u><u></u></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div></div></div>
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</pre></div>

</blockquote></div><br></div></div></div>

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New version today, I found some major holes in the -03 version.

=F0=9F=98=8A

Russ

> -----Original Message-----
> From: I-D-Announce [mailto:i-d-announce-bounces@ietf.org] On Behalf Of
> internet-drafts@ietf.org
> Sent: Thursday, October 12, 2017 7:58 AM
> To: i-d-announce@ietf.org
> Subject: I-D Action: draft-white-openfabric-04.txt
>=20
>=20
> A New Internet-Draft is available from the on-line Internet-Drafts =
directories.
>=20
>=20
>         Title           : IS-IS Support for Openfabric
>         Authors         : Russ White
>                           Shawn Zandi
> 	Filename        : draft-white-openfabric-04.txt
> 	Pages           : 17
> 	Date            : 2017-10-12
>=20
> Abstract:
>    Spine and leaf topologies are widely used in hyperscale and cloud
>    scale networks.  In most of these networks, configuration is
>    automated, but difficult, and topology information is extracted
>    through broad based connections.  Policy is often integrated into =
the
>    control plane, as well, making configuration, management, and
>    troubleshooting difficult.  Openfabric is an adaptation of an
>    existing, widely deployed link state protocol, Intermediate System =
to
>    Intermediate System (IS-IS) that is designed to:
>=20
>    o  Provide a full view of the topology from a single point in the
>       network to simplify operations
>=20
>    o  Minimize configuration of each Intermediate System (IS) (also
>       called a router or switch) in the network
>=20
>    o  Optimize the operation of IS-IS within a spine and leaf fabric =
to
>       enable scaling
>=20
>    This document begins with an overview of openfabric, including a
>    description of what may be removed from IS-IS to enable scaling.  =
The
>    document then describes an optimized adjacency formation process; =
an
>    optimized flooding scheme; some thoughts on the operation of
>    openfabric, metrics, and aggregation; and finally a description of
>    the changes to the IS-IS protocol required for openfabric.
>=20
>=20
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-white-openfabric/
>=20
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-white-openfabric-04
> https://datatracker.ietf.org/doc/html/draft-white-openfabric-04
>=20
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=3Ddraft-white-openfabric-04
>=20
>=20
> Please note that it may take a couple of minutes from the time of =
submission
> until the htmlized version and diff are available at tools.ietf.org.
>=20
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>=20
> _______________________________________________
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> Internet-Draft directories: http://www.ietf.org/shadow.html or
> ftp://ftp.ietf.org/ietf/1shadow-sites.txt


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From: <stephane.litkowski@orange.com>
To: Alvaro Retana <aretana.ietf@gmail.com>
CC: The IESG <iesg@ietf.org>, "draft-ietf-rtgwg-uloop-delay@ietf.org" <draft-ietf-rtgwg-uloop-delay@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "chrisbowers.ietf@gmail.com" <chrisbowers.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>, "Acee Lindem (acee) (acee@cisco.com)" <acee@cisco.com>
Subject: RE: Alvaro Retana's Discuss on draft-ietf-rtgwg-uloop-delay-07: (with DISCUSS and COMMENT)
Thread-Topic: Alvaro Retana's Discuss on draft-ietf-rtgwg-uloop-delay-07: (with DISCUSS and COMMENT)
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Date: Thu, 12 Oct 2017 15:35:47 +0000
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--_000_9E32478DFA9976438E7A22F69B08FF921EA87342OPEXCLILMA4corp_--


From nobody Thu Oct 12 09:13:56 2017
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Subject: Re: Adam Roach's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
To: "Acee Lindem (acee)" <acee@cisco.com>, The IESG <iesg@ietf.org>
Cc: "draft-ietf-rtgwg-routing-types@ietf.org" <draft-ietf-rtgwg-routing-types@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, Jeff Tantsura <jefftant.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
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From: Adam Roach <adam@nostrum.com>
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On 10/11/17 20:16, Acee Lindem (acee) wrote:
>
>> ____
>>
>> There are several patterns in the YANG definition that perform significant
>> restriction of numbers (e.g., to ensure they don't fall outside the range
>> that
>> can be stored in 16 or 32 bits). In many cases, these patterns include the
>> ability to zero-prefix some (but not all) decimal values. For example, the
>> production for route-origin would allow leading zeros in "2:0100:0555"
>> but not
>> in "2:04294967295:065535" (even though "2:4294967295:65535" is okay). I
>> don't
>> know offhand whether it makes sense to allow leading zeros in these
>> fields, but
>> I would argue that the production should be consistent in allowing or
>> disallowing them. This issue arises in various forms in route-target,
>> ipv6-route-target, route-origin, and ipv6-route-origin.
> We’ll look at this and get back to you - a lot of time has already gone
> into formulating and testing these patterns.


Yes, and it would be a shame if that work resulted in publishing 
patterns with known issues.

This flaw arises in three formulations (each of which appear multiple 
times), and would be quite easy to fix. These fixes should be obvious by 
inspection.

32 bits (0-4,294,967,295)
   Replace: [0-3]?[0-9]{0,8}[0-9]
   With:    [1-3][0-9]{9}|[1-9][0-9]{0,8}|0

16 bits (0-65535)
   Replace: [0-5]?[0-9]{0,3}[0-9]
   With:    [1-5][0-9]{4}|[1-9][0-9]{0,3}|0

8 bits (0-255)
   Replace: [01]?[0-9]?[0-9]
   With:    1[0-9]{2}|[1-9]?[0-9]

____

As an aside: replacing "[0-9]" with "\d" everywhere would make these 
patterns easier to read in general, but this is merely a readability 
improvement rather than a bug fix. Compare:

          + '(2:(429496729[0-5]|42949672[0-8][0-9]|'
          +     '4294967[01][0-9]{2}|'
          +     '429496[0-6][0-9]{3}|42949[0-5][0-9]{4}|'
          +     '4294[0-8][0-9]{5}|'
          + '429[0-3][0-9]{6}|42[0-8][0-9]{7}|4[01][0-9]{8}|'
          +     '[1-3][0-9]{9}|[1-9][0-9]{0,8}|0):'
          +     '(6553[0-5]|655[0-2][0-9]|65[0-4][0-9]{2}|'
          +     '6[0-4][0-9]{3}|'
          +     '[1-5][0-9]{4}|[1-9][0-9]{0,3}|0))|'

Becomes:

          + '(2:(429496729[0-5]|42949672[0-8]\d|'
          +     '4294967[01]\d{2}|'
          +     '429496[0-6]\d{3}|42949[0-5]\d{4}|'
          +     '4294[0-8]\d{5}|'
          +     '429[0-3]\d{6}|42[0-8]\d{7}|4[01]\d{8}|'
          +     '[1-3]\d{9}|[1-9]\d{0,8}|0):'
          +     '(6553[0-5]|655[0-2]\d|65[0-4]\d{2}|'
          +     '6[0-4]\d{3}|'
          +     '[1-5]\d{4}|[1-9]\d{0,3}|0))|'


/a


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Subject: Re: Adam Roach's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
To: "Acee Lindem (acee)" <acee@cisco.com>, The IESG <iesg@ietf.org>
Cc: "draft-ietf-rtgwg-routing-types@ietf.org" <draft-ietf-rtgwg-routing-types@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, Jeff Tantsura <jefftant.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
References: <150776904011.16844.17501743592969348058.idtracker@ietfa.amsl.com> <D6043959.CE4D1%acee@cisco.com>
From: Adam Roach <adam@nostrum.com>
Message-ID: <2a258e4e-eea6-2ac7-2237-7277b38e1d83@nostrum.com>
Date: Thu, 12 Oct 2017 11:13:30 -0500
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On 10/11/17 20:16, Acee Lindem (acee) wrote:
>
>> ____
>>
>> There are several patterns in the YANG definition that perform significant
>> restriction of numbers (e.g., to ensure they don't fall outside the range
>> that
>> can be stored in 16 or 32 bits). In many cases, these patterns include the
>> ability to zero-prefix some (but not all) decimal values. For example, the
>> production for route-origin would allow leading zeros in "2:0100:0555"
>> but not
>> in "2:04294967295:065535" (even though "2:4294967295:65535" is okay). I
>> don't
>> know offhand whether it makes sense to allow leading zeros in these
>> fields, but
>> I would argue that the production should be consistent in allowing or
>> disallowing them. This issue arises in various forms in route-target,
>> ipv6-route-target, route-origin, and ipv6-route-origin.
> We’ll look at this and get back to you - a lot of time has already gone
> into formulating and testing these patterns.


Yes, and it would be a shame if that work resulted in publishing 
patterns with known issues.

This flaw arises in three formulations (each of which appear multiple 
times), and would be quite easy to fix. These fixes should be obvious by 
inspection.

32 bits (0-4,294,967,295)
   Replace: [0-3]?[0-9]{0,8}[0-9]
   With:    [1-3][0-9]{9}|[1-9][0-9]{0,8}|0

16 bits (0-65535)
   Replace: [0-5]?[0-9]{0,3}[0-9]
   With:    [1-5][0-9]{4}|[1-9][0-9]{0,3}|0

8 bits (0-255)
   Replace: [01]?[0-9]?[0-9]
   With:    1[0-9]{2}|[1-9]?[0-9]

____

As an aside: replacing "[0-9]" with "\d" everywhere would make these 
patterns easier to read in general, but this is merely a readability 
improvement rather than a bug fix. Compare:

          + '(2:(429496729[0-5]|42949672[0-8][0-9]|'
          +     '4294967[01][0-9]{2}|'
          +     '429496[0-6][0-9]{3}|42949[0-5][0-9]{4}|'
          +     '4294[0-8][0-9]{5}|'
          + '429[0-3][0-9]{6}|42[0-8][0-9]{7}|4[01][0-9]{8}|'
          +     '[1-3][0-9]{9}|[1-9][0-9]{0,8}|0):'
          +     '(6553[0-5]|655[0-2][0-9]|65[0-4][0-9]{2}|'
          +     '6[0-4][0-9]{3}|'
          +     '[1-5][0-9]{4}|[1-9][0-9]{0,3}|0))|'

Becomes:

          + '(2:(429496729[0-5]|42949672[0-8]\d|'
          +     '4294967[01]\d{2}|'
          +     '429496[0-6]\d{3}|42949[0-5]\d{4}|'
          +     '4294[0-8]\d{5}|'
          +     '429[0-3]\d{6}|42[0-8]\d{7}|4[01]\d{8}|'
          +     '[1-3]\d{9}|[1-9]\d{0,8}|0):'
          +     '(6553[0-5]|655[0-2]\d|65[0-4]\d{2}|'
          +     '6[0-4]\d{3}|'
          +     '[1-5]\d{4}|[1-9]\d{0,3}|0))|'


/a


From nobody Thu Oct 12 10:15:39 2017
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Adam Roach <adam@nostrum.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-rtgwg-routing-types@ietf.org" <draft-ietf-rtgwg-routing-types@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, Jeff Tantsura <jefftant.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: Adam Roach's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
Thread-Topic: Adam Roach's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
Thread-Index: AQHTQvM0YzmbInxn/0uFn8VfhB32jaLfaWWAgAE9hQD//85/gA==
Date: Thu, 12 Oct 2017 17:15:20 +0000
Message-ID: <D6051A44.CE6BA%acee@cisco.com>
References: <150776904011.16844.17501743592969348058.idtracker@ietfa.amsl.com> <D6043959.CE4D1%acee@cisco.com> <18af05f7-cdab-7c87-65d9-9b67f5464ca1@nostrum.com>
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Subject: Re: Adam Roach's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
To: "Acee Lindem (acee)" <acee@cisco.com>, Adam Roach <adam@nostrum.com>, The IESG <iesg@ietf.org>
Cc: "draft-ietf-rtgwg-routing-types@ietf.org" <draft-ietf-rtgwg-routing-types@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
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From: Robert Wilton <rwilton@cisco.com>
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Date: Fri, 13 Oct 2017 11:21:06 +0100
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Hi,

On 12/10/2017 18:15, Acee Lindem (acee) wrote:
> Hi Adam,
>
> On 10/12/17, 12:12 PM, "Adam Roach" <adam@nostrum.com> wrote:
>
>> On 10/11/17 20:16, Acee Lindem (acee) wrote:
>>>> ____
>>>>
>>>> There are several patterns in the YANG definition that perform
>>>> significant
>>>> restriction of numbers (e.g., to ensure they don't fall outside the
>>>> range
>>>> that
>>>> can be stored in 16 or 32 bits). In many cases, these patterns include
>>>> the
>>>> ability to zero-prefix some (but not all) decimal values. For example,
>>>> the
>>>> production for route-origin would allow leading zeros in "2:0100:0555"
>>>> but not
>>>> in "2:04294967295:065535" (even though "2:4294967295:65535" is okay). I
>>>> don't
>>>> know offhand whether it makes sense to allow leading zeros in these
>>>> fields, but
>>>> I would argue that the production should be consistent in allowing or
>>>> disallowing them. This issue arises in various forms in route-target,
>>>> ipv6-route-target, route-origin, and ipv6-route-origin.
>>> We’ll look at this and get back to you - a lot of time has already gone
>>> into formulating and testing these patterns.
>>
>> Yes, and it would be a shame if that work resulted in publishing
>> patterns with known issues.
>>
>> This flaw arises in three formulations (each of which appear multiple
>> times), and would be quite easy to fix. These fixes should be obvious by
>> inspection.
>>
>> 32 bits (0-4,294,967,295)
>>    Replace: [0-3]?[0-9]{0,8}[0-9]
>>    With:    [1-3][0-9]{9}|[1-9][0-9]{0,8}|0
>>
>> 16 bits (0-65535)
>>    Replace: [0-5]?[0-9]{0,3}[0-9]
>>    With:    [1-5][0-9]{4}|[1-9][0-9]{0,3}|0
>>
>> 8 bits (0-255)
>>    Replace: [01]?[0-9]?[0-9]
>>    With:    1[0-9]{2}|[1-9]?[0-9]
> Yes - this doesn’t appear to be a complicate fix at all. We’re going to
> get more eyes on it and do some tests with https://yangcatalog.org/yangre/
>   but we should be able to fix this.
For what its worth, and I'm not proposing this is changed now given that 
this has been discussed previously, but I do think that this is another 
example of the dangers inherent with specifying precise, but more 
complex, regular expressions in YANG for checking numerical values.

E.g. I still prefer "[0-9]{0,10}" instead of 
"429496729[0-5]|42949672[0-8][0-9]|4294967[01][0-9]{2}|429496[0-6][0-9]{3}|42949[0-5][0-9]{4}|4294[0-8][0-9]{5}|429[0-3][0-9]{6}|42[0-8][0-9]{7}|4[01][0-9]{8}|[1-3][0-9]{9}|[1-9][0-9]{0,8}|0".

Yes, it allows some invalid numerical values, which would presumably 
fail when the value is converted to a internal numerical format, but it 
is easier to read/review, and is harder to get wrong.  Besides even if a 
stricter regex validates that it the value is syntactically correct it 
still doesn't mean that the correct intended value has been used ...


>
>> ____
>>
>> As an aside: replacing "[0-9]" with "\d" everywhere would make these
>> patterns easier to read in general, but this is merely a readability
>> improvement rather than a bug fix. Compare:
>>
>>           + '(2:(429496729[0-5]|42949672[0-8][0-9]|'
>>           +     '4294967[01][0-9]{2}|'
>>           +     '429496[0-6][0-9]{3}|42949[0-5][0-9]{4}|'
>>           +     '4294[0-8][0-9]{5}|'
>>           + '429[0-3][0-9]{6}|42[0-8][0-9]{7}|4[01][0-9]{8}|'
>>           +     '[1-3][0-9]{9}|[1-9][0-9]{0,8}|0):'
>>           +     '(6553[0-5]|655[0-2][0-9]|65[0-4][0-9]{2}|'
>>           +     '6[0-4][0-9]{3}|'
>>           +     '[1-5][0-9]{4}|[1-9][0-9]{0,3}|0))|'
>>
>> Becomes:
>>
>>           + '(2:(429496729[0-5]|42949672[0-8]\d|'
>>           +     '4294967[01]\d{2}|'
>>           +     '429496[0-6]\d{3}|42949[0-5]\d{4}|'
>>           +     '4294[0-8]\d{5}|'
>>           +     '429[0-3]\d{6}|42[0-8]\d{7}|4[01]\d{8}|'
>>           +     '[1-3]\d{9}|[1-9]\d{0,8}|0):'
>>           +     '(6553[0-5]|655[0-2]\d|65[0-4]\d{2}|'
>>           +     '6[0-4]\d{3}|'
>>           +     '[1-5]\d{4}|[1-9]\d{0,3}|0))|'
>
> Although this is a somewhat controversial subject, we used “[0-9]" for
> portability for implementations using non-standard regular expression
> parsers.
The XML regex language that is reused by YANG is built for Unicode 
support.  Hence '\d' matches all digit characters in all scripts, i.e. 
it actually matches 500+ characters rather than just the ASCII digits 
0-9, and in most network configuration models that is probably not what 
is wanted.  I'm not sure whether it matters that \d matches a much 
larger class of characters, but at least with [0-9] it is entirely 
unambiguous.

Thanks,
Rob

>   
>
> Thanks,
> Acee
>
>>
>> /a
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg


From nobody Fri Oct 13 12:33:10 2017
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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 Routing Area Working Group WG of the IETF.

        Title           : Routing Area Common YANG Data Types
        Authors         : Xufeng Liu
                          Yingzhen Qu
                          Acee Lindem
                          Christian Hopps
                          Lou Berger
	Filename        : draft-ietf-rtgwg-routing-types-17.txt
	Pages           : 37
	Date            : 2017-10-13

Abstract:
   This document defines a collection of common data types using the
   YANG data modeling language.  These derived common types are designed
   to be imported by other modules defined in the routing area.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-routing-types/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-routing-types-17
https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-routing-types-17

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-routing-types-17


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: "Acee Lindem (acee)" <acee@cisco.com>
To: Adam Roach <adam@nostrum.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-rtgwg-routing-types@ietf.org" <draft-ietf-rtgwg-routing-types@ietf.org>, "rtgwg-chairs@ietf.org" <rtgwg-chairs@ietf.org>, Jeff Tantsura <jefftant.ietf@gmail.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: Adam Roach's No Objection on draft-ietf-rtgwg-routing-types-16: (with COMMENT)
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Subject: Re: I-D Action: draft-ietf-rtgwg-yang-vrrp-05.txt
To: draft-ietf-rtgwg-yang-vrrp@ietf.org, rtgwg@ietf.org
References: <150678074289.3430.13577948437978115990@ietfa.amsl.com>
From: Robert Wilton <rwilton@cisco.com>
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Hi draft-ietf-rtgwg-yang-vrrp draft authors,

I have a couple of comments on the latest revision of this draft:

1) The top level "vrrp container" has the right name, but can be "config 
false" since it doesn't hold any configuration today. This is noting 
that RFC 7950 allows the "vrrp container" to become "config true" as a 
backwards compatible change in future if required.

2) I've also noticed that this draft defined two separate versions of 
the VRRP YANG module.  The second version in the appendix is for 
pre-NMDA implementations:

    <CODE BEGINS> file "ietf-vrrp@2017-09-25.yang"
    module ietf-vrrp {
      yang-version 1.1;
      namespace "urn:ietf:params:xml:ns:yang:ietf-vrrp";
      prefix "vrrp";

And
    <CODE BEGINS> file "ietf-vrrp@2017-09-22.yang"
    module ietf-vrrp {
      yang-version 1.1;
      namespace "urn:ietf:params:xml:ns:yang:ietf-vrrp";
      prefix "vrrp";

Generically, I don't think that it is a good idea to define two versions 
of the same YANG module in one draft.

If a backwards compatible NMDA version of a module is required, then an 
extra "-state" module should be put in the appendix instead (e.g. 
ietf-vrrp-state@2017-09-25.yang).  This "-state" module could be used in 
conjunction with ietf-vrrp@2017-09-25.yang until NMDA implementations 
are available.

Alternatively, if you must define an existing pre NMDA version of the 
VRRP module then it should definitely be given a different module name, 
e.g. ietf-vrrp-split-tree@2017-09-25.yang.  But I believe that this 
would be an inferior solution since, compared to a separate "-state" 
module, it will make it harder for clients to migrate to the NMDA 
modules in future.

Finally, having actually read at the main VRRP module, then on the 
assumption that VRRP is always configured before it is used, then the 
"NMDA version" may well be sufficient to use on both existing NETCONF 
implementations and NMDA compatible NETCONF implementations.  The only 
thing that you can't see when using the NMDA version of the module on a 
"pre NMDA" implementation is the applied VRRP configuration.  Whether 
this is important enough to not define the extra "-state" module is 
unclear, but my instinct would be that it is better to just leave it out.

Thanks,
Rob


On 30/09/2017 15:12, 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 Routing Area Working Group WG of the IETF.
>
>          Title           : A YANG Data Model for Virtual Router Redundancy Protocol (VRRP)
>          Authors         : Xufeng Liu
>                            Athanasios Kyparlis
>                            Ravi Parikh
>                            Acee Lindem
>                            Mingui Zhang
> 	Filename        : draft-ietf-rtgwg-yang-vrrp-05.txt
> 	Pages           : 68
> 	Date            : 2017-09-30
>
> Abstract:
>     This document describes a data model for Virtual Router Redundancy
>     Protocol (VRRP).  Both version 2 and version 3 of VRRP are covered.
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/
>
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-rtgwg-yang-vrrp-05
> https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-yang-vrrp-05
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-yang-vrrp-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/
>
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg
> .
>


--------------89AEFD77F0BF8A832B3AF087
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: 8bit

<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    <p>Hi draft-ietf-rtgwg-yang-vrrp draft authors,</p>
    <p>I have a couple of comments on the latest revision of this draft:<br>
    </p>
    <p>1) The top level "vrrp container" has the right name, but can be
      "config false" since it doesn't hold any configuration today. 
      This is noting that RFC 7950 allows the "vrrp container" to become
      "config true" as a backwards compatible change in future if
      required.</p>
    <p>2) I've also noticed that this draft defined two separate
      versions of the VRRP YANG module.  The second version in the
      appendix is for pre-NMDA implementations:</p>
    <p><tt>   &lt;CODE BEGINS&gt; file </tt><tt><a
          class="moz-txt-link-rfc2396E"
          href="mailto:ietf-vrrp@2017-09-25.yang">"ietf-vrrp@2017-09-25.yang"</a></tt><tt>
      </tt><tt><br>
      </tt><tt>   module ietf-vrrp {
      </tt><tt><br>
      </tt><tt>     yang-version 1.1;
      </tt><tt><br>
      </tt><tt>     namespace "urn:ietf:params:</tt><tt><a
          class="moz-txt-link-freetext" href="xml:ns:yang:ietf-vrrp">xml:ns:yang:ietf-vrrp</a></tt><tt>";
      </tt><tt><br>
      </tt><tt>     prefix "vrrp";
      </tt><tt><br>
      </tt>
      <tt><br>
      </tt><tt>And
      </tt><tt><br>
      </tt><tt>   &lt;CODE BEGINS&gt; file </tt><tt><a
          class="moz-txt-link-rfc2396E"
          href="mailto:ietf-vrrp@2017-09-22.yang">"ietf-vrrp@2017-09-22.yang"</a></tt><tt>
      </tt><tt><br>
      </tt><tt>   module ietf-vrrp {
      </tt><tt><br>
      </tt><tt>     yang-version 1.1;
      </tt><tt><br>
      </tt><tt>     namespace "urn:ietf:params:</tt><tt><a
          class="moz-txt-link-freetext" href="xml:ns:yang:ietf-vrrp">xml:ns:yang:ietf-vrrp</a></tt><tt>";
      </tt><tt><br>
      </tt><tt>     prefix "vrrp";
      </tt></p>
    Generically, I don't think that it is a good idea to define two
    versions of the same YANG module in one draft.<br>
    <br>
    If a backwards compatible NMDA version of a module is required, then
    an extra "-state" module should be put in the appendix instead (e.g.
    <a class="moz-txt-link-abbreviated" href="mailto:ietf-vrrp-state@2017-09-25.yang">ietf-vrrp-state@2017-09-25.yang</a>).  This "-state" module could be
    used in conjunction with <a class="moz-txt-link-abbreviated" href="mailto:ietf-vrrp@2017-09-25.yang">ietf-vrrp@2017-09-25.yang</a> until NMDA
    implementations are available.<br>
    <br>
    Alternatively, if you must define an existing pre NMDA version of
    the VRRP module then it should definitely be given a different
    module name, e.g. <a class="moz-txt-link-abbreviated" href="mailto:ietf-vrrp-split-tree@2017-09-25.yang">ietf-vrrp-split-tree@2017-09-25.yang</a>.  But I
    believe that this would be an inferior solution since, compared to a
    separate "-state" module, it will make it harder for clients to
    migrate to the NMDA modules in future.<br>
    <br>
    Finally, having actually read at the main VRRP module, then on the
    assumption that VRRP is always configured before it is used, then
    the "NMDA version" may well be sufficient to use on both existing
    NETCONF implementations and NMDA compatible NETCONF
    implementations.  The only thing that you can't see when using the
    NMDA version of the module on a "pre NMDA" implementation is the
    applied VRRP configuration.  Whether this is important enough to not
    define the extra "-state" module is unclear, but my instinct would
    be that it is better to just leave it out.<br>
    <br>
    Thanks,<br>
    Rob<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 30/09/2017 15:12,
      <a class="moz-txt-link-abbreviated" href="mailto:internet-drafts@ietf.org">internet-drafts@ietf.org</a> wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:150678074289.3430.13577948437978115990@ietfa.amsl.com">
      <pre wrap="">
A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Routing Area Working Group WG of the IETF.

        Title           : A YANG Data Model for Virtual Router Redundancy Protocol (VRRP)
        Authors         : Xufeng Liu
                          Athanasios Kyparlis
                          Ravi Parikh
                          Acee Lindem
                          Mingui Zhang
	Filename        : draft-ietf-rtgwg-yang-vrrp-05.txt
	Pages           : 68
	Date            : 2017-09-30

Abstract:
   This document describes a data model for Virtual Router Redundancy
   Protocol (VRRP).  Both version 2 and version 3 of VRRP are covered.


The IETF datatracker status page for this draft is:
<a class="moz-txt-link-freetext" href="https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/">https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/</a>

There are also htmlized versions available at:
<a class="moz-txt-link-freetext" href="https://tools.ietf.org/html/draft-ietf-rtgwg-yang-vrrp-05">https://tools.ietf.org/html/draft-ietf-rtgwg-yang-vrrp-05</a>
<a class="moz-txt-link-freetext" href="https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-yang-vrrp-05">https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-yang-vrrp-05</a>

A diff from the previous version is available at:
<a class="moz-txt-link-freetext" href="https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-yang-vrrp-05">https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-yang-vrrp-05</a>


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:
<a class="moz-txt-link-freetext" href="ftp://ftp.ietf.org/internet-drafts/">ftp://ftp.ietf.org/internet-drafts/</a>

_______________________________________________
rtgwg mailing list
<a class="moz-txt-link-abbreviated" href="mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>
<a class="moz-txt-link-freetext" href="https://www.ietf.org/mailman/listinfo/rtgwg">https://www.ietf.org/mailman/listinfo/rtgwg</a>
.

</pre>
    </blockquote>
    <br>
  </body>
</html>

--------------89AEFD77F0BF8A832B3AF087--


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From: Xufeng Liu <Xufeng_Liu@jabil.com>
To: Robert Wilton <rwilton@cisco.com>, "draft-ietf-rtgwg-yang-vrrp@ietf.org" <draft-ietf-rtgwg-yang-vrrp@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: RE: I-D Action: draft-ietf-rtgwg-yang-vrrp-05.txt
Thread-Topic: I-D Action: draft-ietf-rtgwg-yang-vrrp-05.txt
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Date: Tue, 17 Oct 2017 13:57:09 +0000
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Subject: Re: I-D Action: draft-ietf-rtgwg-yang-vrrp-05.txt
To: Xufeng Liu <Xufeng_Liu@jabil.com>, "draft-ietf-rtgwg-yang-vrrp@ietf.org" <draft-ietf-rtgwg-yang-vrrp@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>, "Benoit Claise (bclaise)" <bclaise@cisco.com>
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From: Robert Wilton <rwilton@cisco.com>
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Date: Tue, 17 Oct 2017 15:39:05 +0100
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Hi Xufeng,

Thanks, some comments inline ...


On 17/10/2017 14:57, Xufeng Liu wrote:
>
> Hi Rob,
>
> Thanks for examining this and providing the comments.
>
> *From:*Robert Wilton [mailto:rwilton@cisco.com]
> *Sent:* Monday, October 16, 2017 8:49 AM
> *To:* draft-ietf-rtgwg-yang-vrrp@ietf.org; rtgwg@ietf.org
> *Cc:* Benoit Claise (bclaise) <bclaise@cisco.com>; Alia Atlas 
> <akatlas@gmail.com>
> *Subject:* Re: I-D Action: draft-ietf-rtgwg-yang-vrrp-05.txt
>
> Hi draft-ietf-rtgwg-yang-vrrp draft authors,
>
> I have a couple of comments on the latest revision of this draft:
>
> 1) The top level "vrrp container" has the right name, but can be 
> "config false" since it doesn't hold any configuration today.  This is 
> noting that RFC 7950 allows the "vrrp container" to become "config 
> true" as a backwards compatible change in future if required.
>
> */[Xufeng] However, making the container “config false” would prevent 
> vendor augmentations from adding nodes that are “config true”./*
>
This equivalent logic could apply to any "config false" node in any YANG 
data tree ;-)

The generic solution here is that the standard model should be "config 
false", and the vendor model should have a deviation on the top level 
VRRP container to make it "config true" and then augment it with the 
vendor configuration.


> 2) I've also noticed that this draft defined two separate versions of 
> the VRRP YANG module.  The second version in the appendix is for 
> pre-NMDA implementations:
>
>    <CODE BEGINS> file "ietf-vrrp@2017-09-25.yang" 
> <mailto:ietf-vrrp@2017-09-25.yang>
>    module ietf-vrrp {
>      yang-version 1.1;
>      namespace "urn:ietf:params:xml:ns:yang:ietf-vrrp";
>      prefix "vrrp";
>
> And
>    <CODE BEGINS> file "ietf-vrrp@2017-09-22.yang" 
> <mailto:ietf-vrrp@2017-09-22.yang>
>    module ietf-vrrp {
>      yang-version 1.1;
>      namespace "urn:ietf:params:xml:ns:yang:ietf-vrrp";
>      prefix "vrrp";
>
> Generically, I don't think that it is a good idea to define two 
> versions of the same YANG module in one draft.
>
> */[Xufeng] /**/This is to address Alia’s comment about “/*that there is an implementation. That implies that the existing model should be in the appendix.”
> */I think that such a case has not been thoroughly discussed. In the 
> NMDA Guidelines, this case falls into category  (b).(“/*either an existing model or ...
> */”). The goal here is to provide a model that does not break the 
> existing implementation, and can work with previous version of 
> ietf-interfaces in RFC7223. For such a purpose, none of the following 
> suggestions works too well./*
>
>
I think that existing implementations should just implement whichever ID 
version of the module that they have currently implement.  I don't think 
that means that IETF should have to publish that ID version as part of 
an RFC.  It isn't like the old revision goes away once the RFC has been 
published.

Your new NMDA compatible module doesn't have any direct dependency on 
RFC7223bis, i.e. when I tried it compile your NMDA version of the VRRP 
module it works just fine with the existing RFC 7223 version of 
ietf-interfaces.yang (i.e. rev 2014-05-08).  The VRRP state nodes would 
appear under the interfaces/interface part of the tree, but given that 
VRRP would always expect to be configured to have any state this should 
be fine, and is valid YANG.

>
> If a backwards compatible NMDA version of a module is required, then 
> an extra "-state" module should be put in the appendix instead (e.g. 
> ietf-vrrp-state@2017-09-25.yang 
> <mailto:ietf-vrrp-state@2017-09-25.yang>). This "-state" module could 
> be used in conjunction with ietf-vrrp@2017-09-25.yang 
> <mailto:ietf-vrrp@2017-09-25.yang> until NMDA implementations are 
> available.
>
> */[Xufeng] There is no such a parent root “-state” module in either 
> RFC7223 or RFC7223bis, so we cannot create such a module cleanly, 
> following the conventions in the guideline. If we did, such a module 
> would break the current implementations./*
>
When generating a state tree, special consideration needs to be applied 
for modules that have already been published with existing state trees.  
In that case, the generated "-state" module would augment 
interfaces-state/interface/ipv6.

These steps here might be slightly more accurate for generating a state 
module:
https://github.com/netmod-wg/FAQ/wiki/NMDA-Modelling-FAQ#Q4

> *//*
>
>
> Alternatively, if you must define an existing pre NMDA version of the 
> VRRP module then it should definitely be given a different module 
> name, e.g. ietf-vrrp-split-tree@2017-09-25.yang 
> <mailto:ietf-vrrp-split-tree@2017-09-25.yang>. But I believe that this 
> would be an inferior solution since, compared to a separate "-state" 
> module, it will make it harder for clients to migrate to the NMDA 
> modules in future.
>
> */[Xufeng] Why is the different name necessary. The name 
> “ietf-vrrp-split-tree” has some issues: 1) breaks the currently 
> implementation; 2) the naming is arbitrary, without any conventional 
> rules; 3) brings more confusions./*
>
I just think that it is very confusing for a single draft to publish two 
module revisions with the same name.  Particularly given that two 
modules don't follow the YANG upgrade rules.  Tooling like RFC strip 
will automatically extract both revisions etc.  The name doesn't need to 
be "ietf-vrrp-split-tree", just any unique name. But as mentioned below, 
I don't think that you should need to publish it at all.

> *//*
>
> */Why can’t we use the same name? with one older version and one newer 
> version, just like ietf-interfaces with two versions (one in RFC7223 
> and RFC7223bis). The older version reflects the older (current) 
> implementation working with RFC7223 without NMDA. When the vendor 
> moves to NMDA and RFC7223bis, the newer version will be used./*
>
The version in RFC7223bis is a backwards compatible upgrade to the 
existing RFC7223 version.  I.e. it hasn't removed any existing nodes, it 
had just marked part of the tree as deprecated.

I don't see the benefit in putting the old revision into the RFC, it was 
just a working draft version of the model, a foot note in history on the 
path of standardization.

>
> Finally, having actually read at the main VRRP module, then on the 
> assumption that VRRP is always configured before it is used, then the 
> "NMDA version" may well be sufficient to use on both existing NETCONF 
> implementations and NMDA compatible NETCONF implementations.  The only 
> thing that you can't see when using the NMDA version of the module on 
> a "pre NMDA" implementation is the applied VRRP configuration.  
> Whether this is important enough to not define the extra "-state" 
> module is unclear, but my instinct would be that it is better to just 
> leave it out.
>
> */[Xufeng] The “applied configuration” is a feature that could be 
> useful, but not something that the VRRP model has to have. If it were 
> not for being close to the existing implementations, we’d use only the 
> NMDA model. The “pre NMDA” implementation uses ietf-interfaces in 
> RFC7223, which has the -state branch. A matching VRRP model would be 
> more consistent and convenient for such implementations. If we had 
> only the NMDA model, we’d force the implementation to update to the 
> NMDA VRRP model (and better with RFC7223bis). The older version of the 
> non-NMDA model would not require the implementation to change 
> immediately./*
>
> */It is all about the existing implementations. We can have several 
> levels of convenience for the implementations. If it is ok to require 
> them to upgrade now, we can drop the non-NMDA version./*
>
I don't think that we have to require them to upgrade now, I think that 
they should use whichever pre-standard version they are currently using, 
but I wouldn't put this into the RFC (not even in the appendix), it will 
just cause confusion in the long term.

E.g. for a protocol draft you wouldn't expect a RFC to describe other 
pre-standard specifications before it was standardized.  I'm not sure 
why YANG modules should be treated any differently.

Thanks,
Rob


> *//*
>
> */Thanks,
> - Xufeng/*
>
> Thanks,
> Rob
>
> *//*
>
> On 30/09/2017 15:12, internet-drafts@ietf.org 
> <mailto: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 Routing Area Working Group WG of the IETF.
>
>              Title           : A YANG Data Model for Virtual Router Redundancy Protocol (VRRP)
>
>              Authors         : Xufeng Liu
>
>                                Athanasios Kyparlis
>
>                                Ravi Parikh
>
>                                Acee Lindem
>
>                                Mingui Zhang
>
>       Filename        : draft-ietf-rtgwg-yang-vrrp-05.txt
>
>       Pages           : 68
>
>       Date            : 2017-09-30
>
>     Abstract:
>
>         This document describes a data model for Virtual Router Redundancy
>
>         Protocol (VRRP).  Both version 2 and version 3 of VRRP are covered.
>
>     The IETF datatracker status page for this draft is:
>
>     https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/
>
>     There are also htmlized versions available at:
>
>     https://tools.ietf.org/html/draft-ietf-rtgwg-yang-vrrp-05
>
>     https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-yang-vrrp-05
>
>     A diff from the previous version is available at:
>
>     https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-yang-vrrp-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/
>
>     _______________________________________________
>
>     rtgwg mailing list
>
>     rtgwg@ietf.org <mailto:rtgwg@ietf.org>
>
>     https://www.ietf.org/mailman/listinfo/rtgwg
>


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    <p>Hi Xufeng,</p>
    <p>Thanks, some comments inline ...<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 17/10/2017 14:57, Xufeng Liu wrote:<br>
    </div>
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      <div class="WordSection1">
        <p class="MsoNormal"><span style="color:windowtext">Hi Rob,<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext">Thanks for
            examining this and providing the comments.<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext"><o:p> </o:p></span></p>
        <div style="border:none;border-left:solid blue 1.5pt;padding:0in
          0in 0in 4.0pt">
          <div>
            <div style="border:none;border-top:solid #E1E1E1
              1.0pt;padding:3.0pt 0in 0in 0in">
              <p class="MsoNormal"><b><span style="color:windowtext">From:</span></b><span
                  style="color:windowtext"> Robert Wilton
                  [<a class="moz-txt-link-freetext" href="mailto:rwilton@cisco.com">mailto:rwilton@cisco.com</a>]
                  <br>
                  <b>Sent:</b> Monday, October 16, 2017 8:49 AM<br>
                  <b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:draft-ietf-rtgwg-yang-vrrp@ietf.org">draft-ietf-rtgwg-yang-vrrp@ietf.org</a>;
                  <a class="moz-txt-link-abbreviated" href="mailto:rtgwg@ietf.org">rtgwg@ietf.org</a><br>
                  <b>Cc:</b> Benoit Claise (bclaise)
                  <a class="moz-txt-link-rfc2396E" href="mailto:bclaise@cisco.com">&lt;bclaise@cisco.com&gt;</a>; Alia Atlas
                  <a class="moz-txt-link-rfc2396E" href="mailto:akatlas@gmail.com">&lt;akatlas@gmail.com&gt;</a><br>
                  <b>Subject:</b> Re: I-D Action:
                  draft-ietf-rtgwg-yang-vrrp-05.txt<o:p></o:p></span></p>
            </div>
          </div>
          <p class="MsoNormal"><o:p> </o:p></p>
          <p>Hi draft-ietf-rtgwg-yang-vrrp draft authors,<o:p></o:p></p>
          <p>I have a couple of comments on the latest revision of this
            draft:<o:p></o:p></p>
          <p>1) The top level "vrrp container" has the right name, but
            can be "config false" since it doesn't hold any
            configuration today.  This is noting that RFC 7950 allows
            the "vrrp container" to become "config true" as a backwards
            compatible change in future if required.<o:p></o:p></p>
          <p><b><i>[Xufeng] However, making the container “config false”
                would prevent vendor augmentations from adding nodes
                that are “config true”.</i></b></p>
        </div>
      </div>
    </blockquote>
    This equivalent logic could apply to any "config false" node in any
    YANG data tree ;-)<br>
    <br>
    The generic solution here is that the standard model should be
    "config false", and the vendor model should have a deviation on the
    top level VRRP container to make it "config true" and then augment
    it with the vendor configuration.<br>
    <br>
    <br>
    <blockquote type="cite"
cite="mid:BN3PR0201MB0867B911A5BA12EEE0CADECAF14C0@BN3PR0201MB0867.namprd02.prod.outlook.com">
      <div class="WordSection1">
        <div style="border:none;border-left:solid blue 1.5pt;padding:0in
          0in 0in 4.0pt">
          <p><o:p></o:p></p>
          <p>2) I've also noticed that this draft defined two separate
            versions of the VRRP YANG module.  The second version in the
            appendix is for pre-NMDA implementations:<o:p></o:p></p>
          <p><tt><span style="font-size:10.0pt">   &lt;CODE BEGINS&gt;
                file </span></tt><a
              href="mailto:ietf-vrrp@2017-09-25.yang"
              moz-do-not-send="true"><span
                style="font-size:10.0pt;font-family:&quot;Courier
                New&quot;">"ietf-vrrp@2017-09-25.yang"</span></a><tt><span
                style="font-size:10.0pt">
              </span></tt><span
              style="font-size:10.0pt;font-family:&quot;Courier
              New&quot;"><br>
              <tt>   module ietf-vrrp { </tt><br>
              <tt>     yang-version 1.1; </tt><br>
              <tt>     namespace "urn:ietf:params:</tt></span><a
              href="xml:ns:yang:ietf-vrrp" moz-do-not-send="true"><span
                style="font-size:10.0pt;font-family:&quot;Courier
                New&quot;">xml:ns:yang:ietf-vrrp</span></a><tt><span
                style="font-size:10.0pt">";
              </span></tt><span
              style="font-size:10.0pt;font-family:&quot;Courier
              New&quot;"><br>
              <tt>     prefix "vrrp"; </tt><br>
              <br>
              <tt>And </tt><br>
              <tt>   &lt;CODE BEGINS&gt; file </tt></span><a
              href="mailto:ietf-vrrp@2017-09-22.yang"
              moz-do-not-send="true"><span
                style="font-size:10.0pt;font-family:&quot;Courier
                New&quot;">"ietf-vrrp@2017-09-22.yang"</span></a><tt><span
                style="font-size:10.0pt">
              </span></tt><span
              style="font-size:10.0pt;font-family:&quot;Courier
              New&quot;"><br>
              <tt>   module ietf-vrrp { </tt><br>
              <tt>     yang-version 1.1; </tt><br>
              <tt>     namespace "urn:ietf:params:</tt></span><a
              href="xml:ns:yang:ietf-vrrp" moz-do-not-send="true"><span
                style="font-size:10.0pt;font-family:&quot;Courier
                New&quot;">xml:ns:yang:ietf-vrrp</span></a><tt><span
                style="font-size:10.0pt">";
              </span></tt><span
              style="font-size:10.0pt;font-family:&quot;Courier
              New&quot;"><br>
              <tt>     prefix "vrrp"; </tt></span><o:p></o:p></p>
          <p class="MsoNormal" style="margin-bottom:12.0pt">Generically,
            I don't think that it is a good idea to define two versions
            of the same YANG module in one draft.<span
              style="color:windowtext"><o:p></o:p></span></p>
          <pre><b><i><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:windowtext">[Xufeng] </span></i></b><b><i><span style="font-family:&quot;Calibri&quot;,sans-serif;color:windowtext">This is to address Alia’s comment about “</span></i></b>that there is an implementation. That implies that the existing model should be in the appendix.”
<b><i><span style="font-family:&quot;Calibri&quot;,sans-serif;color:windowtext">I think that such a case has not been thoroughly discussed. In the NMDA Guidelines, this case falls into category  (b).(“</span></i></b>either an existing model or ...<o:p></o:p></pre>
          <pre><b><i><span style="font-family:&quot;Calibri&quot;,sans-serif;color:windowtext">”). The goal here is to provide a model that does not break the existing implementation, and can work with previous version of ietf-interfaces in RFC7223. For such a purpose, none of the following suggestions works too well.</span></i></b><o:p></o:p></pre>
          <p class="MsoNormal" style="margin-bottom:12.0pt"><br>
          </p>
        </div>
      </div>
    </blockquote>
    I think that existing implementations should just implement
    whichever ID version of the module that they have currently
    implement.  I don't think that means that IETF should have to
    publish that ID version as part of an RFC.  It isn't like the old
    revision goes away once the RFC has been published.<br>
    <br>
    Your new NMDA compatible module doesn't have any direct dependency
    on RFC7223bis, i.e. when I tried it compile your NMDA version of the
    VRRP module it works just fine with the existing RFC 7223 version of
    ietf-interfaces.yang (i.e. rev 2014-05-08).  The VRRP state nodes
    would appear under the interfaces/interface part of the tree, but
    given that VRRP would always expect to be configured to have any
    state this should be fine, and is valid YANG.<br>
    <br>
    <blockquote type="cite"
cite="mid:BN3PR0201MB0867B911A5BA12EEE0CADECAF14C0@BN3PR0201MB0867.namprd02.prod.outlook.com">
      <div class="WordSection1">
        <div style="border:none;border-left:solid blue 1.5pt;padding:0in
          0in 0in 4.0pt">
          <p class="MsoNormal" style="margin-bottom:12.0pt">
            <br>
            If a backwards compatible NMDA version of a module is
            required, then an extra "-state" module should be put in the
            appendix instead (e.g.
            <a href="mailto:ietf-vrrp-state@2017-09-25.yang"
              moz-do-not-send="true">ietf-vrrp-state@2017-09-25.yang</a>). 
            This "-state" module could be used in conjunction with
            <a href="mailto:ietf-vrrp@2017-09-25.yang"
              moz-do-not-send="true">ietf-vrrp@2017-09-25.yang</a> until
            NMDA implementations are available.<span
              style="color:windowtext"><o:p></o:p></span></p>
          <p class="MsoNormal" style="margin-bottom:12.0pt"><b><i><span
                  style="color:windowtext">[Xufeng] There is no such a
                  parent root “-state” module in either RFC7223 or
                  RFC7223bis, so we cannot create such a module cleanly,
                  following the conventions in the guideline. If we did,
                  such a module would break the current implementations.</span></i></b></p>
        </div>
      </div>
    </blockquote>
    When generating a state tree, special consideration needs to be
    applied for modules that have already been published with existing
    state trees.  In that case, the generated "-state" module would
    augment interfaces-state/interface/ipv6.<br>
    <br>
    These steps here might be slightly more accurate for generating a
    state module:<br>
    <a class="moz-txt-link-freetext" href="https://github.com/netmod-wg/FAQ/wiki/NMDA-Modelling-FAQ#Q4">https://github.com/netmod-wg/FAQ/wiki/NMDA-Modelling-FAQ#Q4</a><br>
    <br>
    <blockquote type="cite"
cite="mid:BN3PR0201MB0867B911A5BA12EEE0CADECAF14C0@BN3PR0201MB0867.namprd02.prod.outlook.com">
      <div class="WordSection1">
        <div style="border:none;border-left:solid blue 1.5pt;padding:0in
          0in 0in 4.0pt">
          <p class="MsoNormal" style="margin-bottom:12.0pt"><b><i><span
                  style="color:windowtext"><o:p></o:p></span></i></b></p>
          <p class="MsoNormal" style="margin-bottom:12.0pt"><br>
            Alternatively, if you must define an existing pre NMDA
            version of the VRRP module then it should definitely be
            given a different module name, e.g.
            <a href="mailto:ietf-vrrp-split-tree@2017-09-25.yang"
              moz-do-not-send="true">ietf-vrrp-split-tree@2017-09-25.yang</a>. 
            But I believe that this would be an inferior solution since,
            compared to a separate "-state" module, it will make it
            harder for clients to migrate to the NMDA modules in future.<span
              style="color:windowtext"><o:p></o:p></span></p>
          <p class="MsoNormal" style="margin-bottom:12.0pt"><b><i><span
                  style="color:windowtext">[Xufeng] Why is the different
                  name necessary. The name “ietf-vrrp-split-tree” has
                  some issues: 1) breaks the currently implementation;
                  2) the naming is arbitrary, without any conventional
                  rules; 3) brings more confusions.</span></i></b></p>
        </div>
      </div>
    </blockquote>
    I just think that it is very confusing for a single draft to publish
    two module revisions with the same name.  Particularly given that
    two modules don't follow the YANG upgrade rules.  Tooling like RFC
    strip will automatically extract both revisions etc.  The name
    doesn't need to be "ietf-vrrp-split-tree", just any unique name. 
    But as mentioned below, I don't think that you should need to
    publish it at all.<br>
    <br>
    <blockquote type="cite"
cite="mid:BN3PR0201MB0867B911A5BA12EEE0CADECAF14C0@BN3PR0201MB0867.namprd02.prod.outlook.com">
      <div class="WordSection1">
        <div style="border:none;border-left:solid blue 1.5pt;padding:0in
          0in 0in 4.0pt">
          <p class="MsoNormal" style="margin-bottom:12.0pt"><b><i><span
                  style="color:windowtext"><o:p></o:p></span></i></b></p>
          <p class="MsoNormal" style="margin-bottom:12.0pt"><b><i><span
                  style="color:windowtext">Why can’t we use the same
                  name? with one older version and one newer version,
                  just like ietf-interfaces with two versions (one in
                  RFC7223 and RFC7223bis). The older version reflects
                  the older (current) implementation working with
                  RFC7223 without NMDA. When the vendor moves to NMDA
                  and RFC7223bis, the newer version will be used.</span></i></b><br>
          </p>
        </div>
      </div>
    </blockquote>
    The version in RFC7223bis is a backwards compatible upgrade to the
    existing RFC7223 version.  I.e. it hasn't removed any existing
    nodes, it had just marked part of the tree as deprecated.<br>
    <br>
    I don't see the benefit in putting the old revision into the RFC, it
    was just a working draft version of the model, a foot note in
    history on the path of standardization.<br>
    <br>
    <blockquote type="cite"
cite="mid:BN3PR0201MB0867B911A5BA12EEE0CADECAF14C0@BN3PR0201MB0867.namprd02.prod.outlook.com">
      <div class="WordSection1">
        <div style="border:none;border-left:solid blue 1.5pt;padding:0in
          0in 0in 4.0pt">
          <p class="MsoNormal" style="margin-bottom:12.0pt">
            <br>
            Finally, having actually read at the main VRRP module, then
            on the assumption that VRRP is always configured before it
            is used, then the "NMDA version" may well be sufficient to
            use on both existing NETCONF implementations and NMDA
            compatible NETCONF implementations.  The only thing that you
            can't see when using the NMDA version of the module on a
            "pre NMDA" implementation is the applied VRRP
            configuration.  Whether this is important enough to not
            define the extra "-state" module is unclear, but my instinct
            would be that it is better to just leave it out.<span
              style="color:windowtext"><o:p></o:p></span></p>
          <p class="MsoNormal" style="margin-bottom:12.0pt"><b><i><span
                  style="color:windowtext">[Xufeng] The “applied
                  configuration” is a feature that could be useful, but
                  not something that the VRRP model has to have. If it
                  were not for being close to the existing
                  implementations, we’d use only the NMDA model. The
                  “pre NMDA” implementation uses ietf-interfaces in
                  RFC7223, which has the -state branch. A matching VRRP
                  model would be more consistent and convenient for such
                  implementations. If we had only the NMDA model, we’d
                  force the implementation to update to the NMDA VRRP
                  model (and better with RFC7223bis). The older version
                  of the non-NMDA model would not require the
                  implementation to change immediately.<o:p></o:p></span></i></b></p>
          <p class="MsoNormal" style="margin-bottom:12.0pt"><b><i><span
                  style="color:windowtext">It is all about the existing
                  implementations. We can have several levels of
                  convenience for the implementations. If it is ok to
                  require them to upgrade now, we can drop the non-NMDA
                  version.</span></i></b></p>
        </div>
      </div>
    </blockquote>
    I don't think that we have to require them to upgrade now, I think
    that they should use whichever pre-standard version they are
    currently using, but I wouldn't put this into the RFC (not even in
    the appendix), it will just cause confusion in the long term.<br>
    <br>
    E.g. for a protocol draft you wouldn't expect a RFC to describe
    other pre-standard specifications before it was standardized.  I'm
    not sure why YANG modules should be treated any differently.<br>
    <br>
    Thanks,<br>
    Rob<br>
    <br>
    <br>
    <blockquote type="cite"
cite="mid:BN3PR0201MB0867B911A5BA12EEE0CADECAF14C0@BN3PR0201MB0867.namprd02.prod.outlook.com">
      <div class="WordSection1">
        <div style="border:none;border-left:solid blue 1.5pt;padding:0in
          0in 0in 4.0pt">
          <p class="MsoNormal" style="margin-bottom:12.0pt"><b><i><span
                  style="color:windowtext"><o:p></o:p></span></i></b></p>
          <p class="MsoNormal" style="margin-bottom:12.0pt"><b><i><span
                  style="color:windowtext">Thanks,
                  <br>
                  - Xufeng</span></i></b><br>
            <br>
            Thanks,<br>
            Rob<br>
            <br>
            <b><i><span style="color:windowtext"><o:p></o:p></span></i></b></p>
          <div>
            <p class="MsoNormal">On 30/09/2017 15:12, <a
                href="mailto:internet-drafts@ietf.org"
                moz-do-not-send="true">
                internet-drafts@ietf.org</a> wrote:<o:p></o:p></p>
          </div>
          <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
            <pre><o:p> </o:p></pre>
            <pre>A New Internet-Draft is available from the on-line Internet-Drafts directories.<o:p></o:p></pre>
            <pre>This draft is a work item of the Routing Area Working Group WG of the IETF.<o:p></o:p></pre>
            <pre><o:p> </o:p></pre>
            <pre>        Title           : A YANG Data Model for Virtual Router Redundancy Protocol (VRRP)<o:p></o:p></pre>
            <pre>        Authors         : Xufeng Liu<o:p></o:p></pre>
            <pre>                          Athanasios Kyparlis<o:p></o:p></pre>
            <pre>                          Ravi Parikh<o:p></o:p></pre>
            <pre>                          Acee Lindem<o:p></o:p></pre>
            <pre>                          Mingui Zhang<o:p></o:p></pre>
            <pre> Filename        : draft-ietf-rtgwg-yang-vrrp-05.txt<o:p></o:p></pre>
            <pre> Pages           : 68<o:p></o:p></pre>
            <pre> Date            : 2017-09-30<o:p></o:p></pre>
            <pre><o:p> </o:p></pre>
            <pre>Abstract:<o:p></o:p></pre>
            <pre>   This document describes a data model for Virtual Router Redundancy<o:p></o:p></pre>
            <pre>   Protocol (VRRP).  Both version 2 and version 3 of VRRP are covered.<o:p></o:p></pre>
            <pre><o:p> </o:p></pre>
            <pre><o:p> </o:p></pre>
            <pre>The IETF datatracker status page for this draft is:<o:p></o:p></pre>
            <pre><a href="https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/" moz-do-not-send="true">https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/</a><o:p></o:p></pre>
            <pre><o:p> </o:p></pre>
            <pre>There are also htmlized versions available at:<o:p></o:p></pre>
            <pre><a href="https://tools.ietf.org/html/draft-ietf-rtgwg-yang-vrrp-05" moz-do-not-send="true">https://tools.ietf.org/html/draft-ietf-rtgwg-yang-vrrp-05</a><o:p></o:p></pre>
            <pre><a href="https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-yang-vrrp-05" moz-do-not-send="true">https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-yang-vrrp-05</a><o:p></o:p></pre>
            <pre><o:p> </o:p></pre>
            <pre>A diff from the previous version is available at:<o:p></o:p></pre>
            <pre><a href="https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-yang-vrrp-05" moz-do-not-send="true">https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-yang-vrrp-05</a><o:p></o:p></pre>
            <pre><o:p> </o:p></pre>
            <pre><o:p> </o:p></pre>
            <pre>Please note that it may take a couple of minutes from the time of submission<o:p></o:p></pre>
            <pre>until the htmlized version and diff are available at tools.ietf.org.<o:p></o:p></pre>
            <pre><o:p> </o:p></pre>
            <pre>Internet-Drafts are also available by anonymous FTP at:<o:p></o:p></pre>
            <pre><a href="ftp://ftp.ietf.org/internet-drafts/" moz-do-not-send="true">ftp://ftp.ietf.org/internet-drafts/</a><o:p></o:p></pre>
            <pre><o:p> </o:p></pre>
            <pre>_______________________________________________<o:p></o:p></pre>
            <pre>rtgwg mailing list<o:p></o:p></pre>
            <pre><a href="mailto:rtgwg@ietf.org" moz-do-not-send="true">rtgwg@ietf.org</a><o:p></o:p></pre>
            <pre><a href="https://www.ietf.org/mailman/listinfo/rtgwg" moz-do-not-send="true">https://www.ietf.org/mailman/listinfo/rtgwg</a><o:p></o:p></pre>
          </blockquote>
        </div>
      </div>
    </blockquote>
    <br>
  </body>
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Subject: RTGWG presentation slot requests in Singapore
From: Jeff Tantsura <jefftant.ietf@gmail.com>
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Dear RTGWG,
=20
It's that time again!
The preliminary agenda for IETF 100 has been published; you can find it at =
https://datatracker.ietf.org/meeting/100/agenda.html
=20
RTGWG will be meeting: 09:30- 12:00 on Monday, November 13 in Canning and 1=
3:30-15:30 on Thursday, November 16 in Canning room.
If you'd like a slot to present a draft, please send a request to Chris and=
 I by Monday, October 30.
Please note the dates below, in particular, the deadline for draft submissi=
on is UTC 23:59 October 30.
We kindly request to provide your presentations by Monday, November 6.
=20
As always =E2=80=93 we would appreciate your help in taking notes and jabber, ple=
ase do volunteer!
=20
Looking forward to seeing you all in Singapore!
=20
Cheers,
Jeff and Chris
=20



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--_000_AM5PR0701MB2836880BF11EDA79D8F078E1E0420AM5PR0701MB2836_--


From nobody Fri Oct 20 17:25:19 2017
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From: "\"IETF Secretariat\"" <agenda@ietf.org>
To: <jefftant.ietf@gmail.com>, <rtgwg-chairs@ietf.org>
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Subject: rtgwg - Requested sessions have been scheduled for IETF 100
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Dear Jeff Tantsura,

The session(s) that you have requested have been scheduled.
Below is the scheduled session information followed by
the original request. 

rtgwg Session 1 (2:00:00)
    Thursday, Afternoon Session I 1330-1530
    Room Name: Canning size: 250
    ---------------------------------------------
    rtgwg Session 2 (2:30:00)
    Monday, Morning Session I 0930-1200
    Room Name: Canning size: 250
    ---------------------------------------------
    


Request Information:


---------------------------------------------------------
Working Group Name: Routing Area Working Group
Area Name: Routing Area
Session Requester: Jeff Tantsura

Number of Sessions: 2
Length of Session(s):  2 Hours, 2.5 Hours
Number of Attendees: 120
Conflicts to Avoid: 
 First Priority: isis mpls ospf pce idr spring
 Second Priority: bess bier teas ccamp i2rs netmod
 Third Priority: bfd detnet lime nvo3 pim netconf


People who must be present:
  Alia Atlas
  Jeff Tantsura
  Chris Bowers

Resources Requested:

Special Requests:
  
---------------------------------------------------------


From nobody Mon Oct 23 07:35:50 2017
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Subject: I-D Action: draft-ietf-rtgwg-backoff-algo-06.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Routing Area Working Group WG of the IETF.

        Title           : SPF Back-off algorithm for link state IGPs
        Authors         : Bruno Decraene
                          Stephane Litkowski
                          Hannes Gredler
                          Acee Lindem
                          Pierre Francois
                          Chris Bowers
	Filename        : draft-ietf-rtgwg-backoff-algo-06.txt
	Pages           : 12
	Date            : 2017-10-23

Abstract:
   This document defines a standard algorithm to back-off link-state IGP
   SPF computations.

   Having one standard algorithm improves interoperability by reducing
   the probability and/or duration of transient forwarding loops during
   the IGP convergence when the IGP reacts to multiple temporally close
   IGP events.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-backoff-algo/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-backoff-algo-06
https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-backoff-algo-06

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-backoff-algo-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 Mon Oct 23 07:38:56 2017
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No change, just a refresh.

> A diff from the previous version is available at:
 > https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-rtgwg-backoff-algo-06


Regards,
--Bruno

 > -----Original Message-----
 > From: I-D-Announce [mailto:i-d-announce-bounces@ietf.org] On Behalf Of i=
nternet-
 > drafts@ietf.org
 > Sent: Monday, October 23, 2017 4:36 PM
 > To: i-d-announce@ietf.org
 > Cc: rtgwg@ietf.org
 > Subject: I-D Action: draft-ietf-rtgwg-backoff-algo-06.txt
 >=20
 >=20
 > A New Internet-Draft is available from the on-line Internet-Drafts direc=
tories.
 > This draft is a work item of the Routing Area Working Group WG of the IE=
TF.
 >=20
 >         Title           : SPF Back-off algorithm for link state IGPs
 >         Authors         : Bruno Decraene
 >                           Stephane Litkowski
 >                           Hannes Gredler
 >                           Acee Lindem
 >                           Pierre Francois
 >                           Chris Bowers
 > 	Filename        : draft-ietf-rtgwg-backoff-algo-06.txt
 > 	Pages           : 12
 > 	Date            : 2017-10-23
 >=20
 > Abstract:
 >    This document defines a standard algorithm to back-off link-state IGP
 >    SPF computations.
 >=20
 >    Having one standard algorithm improves interoperability by reducing
 >    the probability and/or duration of transient forwarding loops during
 >    the IGP convergence when the IGP reacts to multiple temporally close
 >    IGP events.
 >=20
 >=20
 >=20
 > The IETF datatracker status page for this draft is:
 > https://datatracker.ietf.org/doc/draft-ietf-rtgwg-backoff-algo/
 >=20
 > There are also htmlized versions available at:
 > https://tools.ietf.org/html/draft-ietf-rtgwg-backoff-algo-06
 > https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-backoff-algo-06
 >=20
 > A diff from the previous version is available at:
 > https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-rtgwg-backoff-algo-06
 >=20
 >=20
 > Please note that it may take a couple of minutes from the time of submis=
sion
 > until the htmlized version and diff are available at tools.ietf.org.
 >=20
 > Internet-Drafts are also available by anonymous FTP at:
 > ftp://ftp.ietf.org/internet-drafts/
 >=20
 > _______________________________________________
 > I-D-Announce mailing list
 > I-D-Announce@ietf.org
 > https://www.ietf.org/mailman/listinfo/i-d-announce
 > Internet-Draft directories: http://www.ietf.org/shadow.html
 > or ftp://ftp.ietf.org/ietf/1shadow-sites.txt

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Date: Mon, 23 Oct 2017 14:17:13 -0700
Subject: RTGWG WGLC draft-ietf-rtgwg-ni-model
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: RTGWG <rtgwg@ietf.org>
CC: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, Benoit Claise <bclaise@cisco.com>, Rtg-dt-yang-arch <rtg-dt-yang-arch-bounces@ietf.org>
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Dear RTGWG,

The authors have requested the RTGWG to last call draft-ietf-rtgwg-ni-model.

The interdependencies related to draft-ietf-netmod-schema-mount have been addressed.
There was consensus that document is ready for the last call during the last IETF meeting 
and the authors have addressed all the comments from Directorate QA review and YANGDOCTORS.
Please indicate support or no-support by November 6, 2017.

IPR:
If you are listed as a document author or contributor, please respond to this 
email of whether or not you are aware of any relevant IPR. 
The response needs to be sent to the RTGWG mailing list.
The document will not advance to the next stage until a response has been 
received from each author and each individual that has contributed to the document.

Thanks,
Jeff & Chris





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Date: Mon, 23 Oct 2017 14:17:11 -0700
Subject: RTGWG WGLC draft-ietf-rtgwg-lne-model
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: RTGWG <rtgwg@ietf.org>
CC: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, Benoit Claise <bclaise@cisco.com>, Rtg-dt-yang-arch <rtg-dt-yang-arch-bounces@ietf.org>
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Dear RTGWG,

The authors have requested the RTGWG to last call draft-ietf-rtgwg-lne-model

The interdependencies related to draft-ietf-netmod-schema-mount have been addressed.
There was consensus that document is ready for the last call during the last IETF meeting 
and the authors have addressed all the comments from Directorate QA review and YANGDOCTORS.
Please indicate support or no-support by November 6, 2017.

IPR:
If you are listed as a document author or contributor, please respond to this 
email of whether or not you are aware of any relevant IPR. 
The response needs to be sent to the RTGWG mailing list.
The document will not advance to the next stage until a response has been 
received from each author and each individual that has contributed to the document.

Thanks,
Jeff & Chris




From nobody Mon Oct 23 14:21:45 2017
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Jeff Tantsura <jefftant.ietf@gmail.com>, RTGWG <rtgwg@ietf.org>
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Date: Mon, 23 Oct 2017 14:29:59 -0700
Subject: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: RTGWG <rtgwg@ietf.org>
CC: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, <draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org>
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Thread-Topic: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
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Dear RTGWG,

While authors are addressing shepherd=E2=80=99 comments, co-chairs would like to =
start IPR call on the draft.

If you are listed as a document author or contributor, please respond to th=
is
email of whether or not you are aware of any relevant IPR.
The response needs to be sent to the RTGWG mailing list.
The document will not advance to the next stage until a response has been
received from each author and each individual that has contributed to the d=
ocument.

Thanks,
Jeff and Chris




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Date: Mon, 23 Oct 2017 14:32:03 -0700
Subject: Re: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: RTGWG <rtgwg@ietf.org>
CC: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, <draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org>
Message-ID: <4CE12617-5826-4007-8E4D-F6AEA121253B@gmail.com>
Thread-Topic: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
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As co-author:
I=E2=80=99m not aware of any relevant IPR that applies to the draft.

Cheers,
Jeff

-----Original Message-----
From: Jeff Tantsura <jefftant.ietf@gmail.com>
Date: Monday, October 23, 2017 at 14:29
To: RTGWG <rtgwg@ietf.org>
Cc: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, <draft-ietf-rtgwg-multiho=
med-prefix-lfa@ietf.org>
Subject: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa

    Dear RTGWG,
   =20
    While authors are addressing shepherd=E2=80=99 comments, co-chairs would like=
 to start IPR call on the draft.
   =20
    If you are listed as a document author or contributor, please respond t=
o this
    email of whether or not you are aware of any relevant IPR.
    The response needs to be sent to the RTGWG mailing list.
    The document will not advance to the next stage until a response has be=
en
    received from each author and each individual that has contributed to t=
he document.
   =20
    Thanks,
    Jeff and Chris
   =20
   =20
   =20
   =20



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From: Lou Berger <lberger@labn.net>
To: Jeff Tantsura <jefftant.ietf@gmail.com>, RTGWG <rtgwg@ietf.org>
CC: "Rtg-dt-yang-arch" <rtg-dt-yang-arch-bounces@ietf.org>, "'rtgwg-chairs'" <rtgwg-chairs@tools.ietf.org>
Date: Mon, 23 Oct 2017 17:34:22 -0400
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Subject: Re: RTGWG WGLC draft-ietf-rtgwg-ni-model
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Hi,

I am not aware of any relevant IPR.

Lou
As contributor


On October 23, 2017 5:17:43 PM Jeff Tantsura <jefftant.ietf@gmail.com> wrote:

> Dear RTGWG,
>
> The authors have requested the RTGWG to last call draft-ietf-rtgwg-ni-model.
>
> The interdependencies related to draft-ietf-netmod-schema-mount have been 
> addressed.
> There was consensus that document is ready for the last call during the 
> last IETF meeting
> and the authors have addressed all the comments from Directorate QA review 
> and YANGDOCTORS.
> Please indicate support or no-support by November 6, 2017.
>
> IPR:
> If you are listed as a document author or contributor, please respond to this
> email of whether or not you are aware of any relevant IPR.
> The response needs to be sent to the RTGWG mailing list.
> The document will not advance to the next stage until a response has been
> received from each author and each individual that has contributed to the 
> document.
>
> Thanks,
> Jeff & Chris
>
>
>
>
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg
>



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From: Lou Berger <lberger@labn.net>
To: Jeff Tantsura <jefftant.ietf@gmail.com>, RTGWG <rtgwg@ietf.org>
CC: "Rtg-dt-yang-arch" <rtg-dt-yang-arch-bounces@ietf.org>, "'rtgwg-chairs'" <rtgwg-chairs@tools.ietf.org>
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Subject: Re: RTGWG WGLC draft-ietf-rtgwg-lne-model
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Hi,

I am not aware of any relevant IPR.

Lou
As contributor


On October 23, 2017 5:18:00 PM Jeff Tantsura <jefftant.ietf@gmail.com> wrote:

> Dear RTGWG,
>
> The authors have requested the RTGWG to last call draft-ietf-rtgwg-lne-model
>
> The interdependencies related to draft-ietf-netmod-schema-mount have been 
> addressed.
> There was consensus that document is ready for the last call during the 
> last IETF meeting
> and the authors have addressed all the comments from Directorate QA review 
> and YANGDOCTORS.
> Please indicate support or no-support by November 6, 2017.
>
> IPR:
> If you are listed as a document author or contributor, please respond to this
> email of whether or not you are aware of any relevant IPR.
> The response needs to be sent to the RTGWG mailing list.
> The document will not advance to the next stage until a response has been
> received from each author and each individual that has contributed to the 
> document.
>
> Thanks,
> Jeff & Chris
>
>
>
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg
>



From nobody Tue Oct 24 01:22:27 2017
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From: <bruno.decraene@orange.com>
To: Jeff Tantsura <jefftant.ietf@gmail.com>, 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>
CC: "draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org" <draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org>, RTGWG <rtgwg@ietf.org>
Subject: RE: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
Thread-Topic: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
Thread-Index: AQHTTEYkpaGpBJWNEEqbgdqluiN6r6Lyp0EQ
Date: Tue, 24 Oct 2017 08:22:21 +0000
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From nobody Tue Oct 24 09:35:31 2017
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From: The IESG <iesg-secretary@ietf.org>
To: "IETF-Announce" <ietf-announce@ietf.org>
Subject: Protocol Action: 'Routing Area Common YANG Data Types' to Proposed Standard (draft-ietf-rtgwg-routing-types-17.txt)
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The IESG has approved the following document:
- 'Routing Area Common YANG Data Types'
  (draft-ietf-rtgwg-routing-types-17.txt) as Proposed Standard

This document is the product of the Routing Area Working Group.

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

A URL of this Internet Draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-routing-types/





Technical Summary

  This document defines a collection of common data types using the
   YANG data modeling language.  These derived common types are designed
   to be imported by other modules defined in the routing area.

Working Group Summary

   
   This draft has been thoroughly discussed in the WG, very good feedback has been provided by OPS area and vendor community.
   The draft adoption and progress has received full support from the WG.
   All comments have been addressed. The draft is ready for publication.

Document Quality

  The draft went thru many rounds of reviews by YANG-Doctors as well as implementors, which resulted in a very high quality document.
   There are upcoming implementations and multiple vendors have shown significant interest in the topic.  

Personnel

  Jeff Tantsura is the Document Shepherd.
  Alia Atlas is the Responsible Area Director.


From nobody Tue Oct 24 10:26:22 2017
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From: Uma Chunduri <uma.chunduri@huawei.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, Jeff Tantsura <jefftant.ietf@gmail.com>, "'rtgwg-chairs'" <rtgwg-chairs@tools.ietf.org>
CC: "draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org" <draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org>, RTGWG <rtgwg@ietf.org>
Subject: RE: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
Thread-Topic: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
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Date: Tue, 24 Oct 2017 17:26:02 +0000
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References: <54C4852B-E98A-4B6A-83EF-68D4E3CBC478@gmail.com> <28166_1508833342_59EEF83E_28166_125_1_53C29892C857584299CBF5D05346208A478BCC6C@OPEXCLILM21.corporate.adroot.infra.ftgroup>
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To: Jeff Tantsura <jefftant.ietf@gmail.com>, RTGWG <rtgwg@ietf.org>
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I am not aware of any relevant IPR.

Thanks,
- Xufeng

> -----Original Message-----
> From: rtgwg [mailto:rtgwg-bounces@ietf.org] On Behalf Of Jeff Tantsura
> Sent: Monday, October 23, 2017 5:17 PM
> To: RTGWG <rtgwg@ietf.org>
> Cc: Rtg-dt-yang-arch <rtg-dt-yang-arch-bounces@ietf.org>; 'rtgwg-chairs'
> <rtgwg-chairs@tools.ietf.org>
> Subject: RTGWG WGLC draft-ietf-rtgwg-ni-model
>=20
> Dear RTGWG,
>=20
> The authors have requested the RTGWG to last call draft-ietf-rtgwg-ni-mod=
el.
>=20
> The interdependencies related to draft-ietf-netmod-schema-mount have been
> addressed.
> There was consensus that document is ready for the last call during the l=
ast IETF
> meeting and the authors have addressed all the comments from Directorate =
QA
> review and YANGDOCTORS.
> Please indicate support or no-support by November 6, 2017.
>=20
> IPR:
> If you are listed as a document author or contributor, please respond to =
this
> email of whether or not you are aware of any relevant IPR.
> The response needs to be sent to the RTGWG mailing list.
> The document will not advance to the next stage until a response has been
> received from each author and each individual that has contributed to the
> document.
>=20
> Thanks,
> Jeff & Chris
>=20
>=20
>=20
>=20
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg


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I am not aware of any relevant IPR.

Thanks,
- Xufeng

> -----Original Message-----
> From: rtgwg [mailto:rtgwg-bounces@ietf.org] On Behalf Of Jeff Tantsura
> Sent: Monday, October 23, 2017 5:17 PM
> To: RTGWG <rtgwg@ietf.org>
> Cc: Rtg-dt-yang-arch <rtg-dt-yang-arch-bounces@ietf.org>; 'rtgwg-chairs'
> <rtgwg-chairs@tools.ietf.org>
> Subject: RTGWG WGLC draft-ietf-rtgwg-lne-model
>=20
> Dear RTGWG,
>=20
> The authors have requested the RTGWG to last call draft-ietf-rtgwg-lne-mo=
del
>=20
> The interdependencies related to draft-ietf-netmod-schema-mount have been
> addressed.
> There was consensus that document is ready for the last call during the l=
ast IETF
> meeting and the authors have addressed all the comments from Directorate =
QA
> review and YANGDOCTORS.
> Please indicate support or no-support by November 6, 2017.
>=20
> IPR:
> If you are listed as a document author or contributor, please respond to =
this
> email of whether or not you are aware of any relevant IPR.
> The response needs to be sent to the RTGWG mailing list.
> The document will not advance to the next stage until a response has been
> received from each author and each individual that has contributed to the
> document.
>=20
> Thanks,
> Jeff & Chris
>=20
>=20
>=20
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg


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Date: Tue, 24 Oct 2017 12:31:57 -0700
Subject: Re: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: <bruno.decraene@orange.com>, 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>
CC: "draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org" <draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org>, RTGWG <rtgwg@ietf.org>
Message-ID: <BE57B483-CC89-4D69-8626-50CF92BF483B@gmail.com>
Thread-Topic: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
References: <54C4852B-E98A-4B6A-83EF-68D4E3CBC478@gmail.com> <28166_1508833342_59EEF83E_28166_125_1_53C29892C857584299CBF5D05346208A478BCC6C@OPEXCLILM21.corporate.adroot.infra.ftgroup>
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Hi Bruno,

Thanks for the note, fixed the replacement and IPR.

Cheers,
Jeff

-----Original Message-----
From: <bruno.decraene@orange.com>
Date: Tuesday, October 24, 2017 at 01:22
To: Jeff Tantsura <jefftant.ietf@gmail.com>, 'rtgwg-chairs' <rtgwg-chairs@t=
ools.ietf.org>
Cc: "draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org" <draft-ietf-rtgwg-mul=
tihomed-prefix-lfa@ietf.org>, RTGWG <rtgwg@ietf.org>
Subject: RE: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa

    Hi chairs, all
   =20
    I'm not aware of non-disclosed IPR.
   =20
    Please note that 2 IPR had been disclosed on the individual version of =
this document https://datatracker.ietf.org/ipr/search/?submit=3Ddraft&id=3Ddraft=
-psarkar-rtgwg-multihomed-prefix-lfa
    which are not disclosed on https://datatracker.ietf.org/ipr/search/?sub=
mit=3Ddraft&id=3Ddraft-ietf-rtgwg-multihomed-prefix-lfa nor automatically refere=
nced by the datatracker.
   =20
    Probably related, the datatracker document/replaces field seems to be l=
eft blank. Possibly, it could be filled with 2 drafts which have been merged=
: draft-psarkar-rtgwg-multihomed-prefix-lfa & draft-chunduri-rtgwg-lfa-exten=
ded-procedures
   =20
    Best regards,
    --Bruno
   =20
   =20
     > -----Original Message-----
     > From: Jeff Tantsura [mailto:jefftant.ietf@gmail.com]
     > Sent: Monday, October 23, 2017 11:30 PM
     > To: RTGWG
     > Cc: 'rtgwg-chairs'; draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org
     > Subject: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
     >=20
     > Dear RTGWG,
     >=20
     > While authors are addressing shepherd=E2=80=99 comments, co-chairs would l=
ike to start IPR call on the
     > draft.
     >=20
     > If you are listed as a document author or contributor, please respon=
d to this
     > email of whether or not you are aware of any relevant IPR.
     > The response needs to be sent to the RTGWG mailing list.
     > The document will not advance to the next stage until a response has=
 been
     > received from each author and each individual that has contributed t=
o the document.
     >=20
     > Thanks,
     > Jeff and Chris
     >=20
     >=20
   =20
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From: Pushpasis Sarkar <pushpasis.ietf@gmail.com>
Date: Wed, 25 Oct 2017 02:25:14 +0530
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Subject: Re: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
To: Jeff Tantsura <jefftant.ietf@gmail.com>
Cc: RTGWG <rtgwg@ietf.org>, rtgwg-chairs <rtgwg-chairs@tools.ietf.org>,  draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org
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Hi Jeff,

I am not aware of any IPR other than the one already disclosed.

Thanks
Pushpasis

On Oct 24, 2017 03:00, "Jeff Tantsura" <jefftant.ietf@gmail.com> wrote:

> Dear RTGWG,
>
> While authors are addressing shepherd=E2=80=99 comments, co-chairs would =
like to
> start IPR call on the draft.
>
> If you are listed as a document author or contributor, please respond to
> this
> email of whether or not you are aware of any relevant IPR.
> The response needs to be sent to the RTGWG mailing list.
> The document will not advance to the next stage until a response has been
> received from each author and each individual that has contributed to the
> document.
>
> Thanks,
> Jeff and Chris
>
>
>
>

--001a1147fad8e2ac76055c5127be
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<div dir=3D"auto">Hi Jeff,=C2=A0<div dir=3D"auto"><br></div><div dir=3D"aut=
o">I am not aware of any IPR other than the one already disclosed.=C2=A0</d=
iv><div dir=3D"auto"><br></div><div dir=3D"auto">Thanks</div><div dir=3D"au=
to">Pushpasis</div></div><div class=3D"gmail_extra"><br><div class=3D"gmail=
_quote">On Oct 24, 2017 03:00, &quot;Jeff Tantsura&quot; &lt;<a href=3D"mai=
lto:jefftant.ietf@gmail.com">jefftant.ietf@gmail.com</a>&gt; wrote:<br type=
=3D"attribution"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8=
ex;border-left:1px #ccc solid;padding-left:1ex">Dear RTGWG,<br>
<br>
While authors are addressing shepherd=E2=80=99 comments, co-chairs would li=
ke to start IPR call on the draft.<br>
<br>
If you are listed as a document author or contributor, please respond to th=
is<br>
email of whether or not you are aware of any relevant IPR.<br>
The response needs to be sent to the RTGWG mailing list.<br>
The document will not advance to the next stage until a response has been<b=
r>
received from each author and each individual that has contributed to the d=
ocument.<br>
<br>
Thanks,<br>
Jeff and Chris<br>
<br>
<br>
<br>
</blockquote></div></div>

--001a1147fad8e2ac76055c5127be--


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From: Chris Bowers <cbowers@juniper.net>
To: Jeff Tantsura <jefftant.ietf@gmail.com>, RTGWG <rtgwg@ietf.org>
CC: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, "draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org" <draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org>
Subject: RE: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
Thread-Topic: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
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From nobody Wed Oct 25 03:32:33 2017
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From: Hannes Gredler <hannes@rtbrick.com>
Date: Wed, 25 Oct 2017 12:32:26 +0200
Message-ID: <CAFVe_eqT2SzVHr92kHWqYgaqEewFbztwAR28Yx7Kut8OnN2quA@mail.gmail.com>
Subject: Re: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
To: Uma Chunduri <uma.chunduri@huawei.com>
Cc: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, Jeff Tantsura <jefftant.ietf@gmail.com>,  rtgwg-chairs <rtgwg-chairs@tools.ietf.org>,  "draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org" <draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org>, RTGWG <rtgwg@ietf.org>
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--001a1140fa44692513055c5c9251
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not aware of any patents beyond the Juniper declared one. - /hannes

On Tue, Oct 24, 2017 at 7:26 PM, Uma Chunduri <uma.chunduri@huawei.com>
wrote:

> Dear Chairs & WG,
>
> Not aware of any  non-disclosed IPRs related to this draft (yes,
> disclosures happened on the non-WG version of this draft, as pointed by
> Bruno below).
>
> --
> Uma C.
>
> -----Original Message-----
> From: bruno.decraene@orange.com [mailto:bruno.decraene@orange.com]
> Sent: Tuesday, October 24, 2017 1:22 AM
> To: Jeff Tantsura <jefftant.ietf@gmail.com>; 'rtgwg-chairs' <
> rtgwg-chairs@tools.ietf.org>
> Cc: draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org; RTGWG <rtgwg@ietf.or=
g
> >
> Subject: RE: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
>
> Hi chairs, all
>
> I'm not aware of non-disclosed IPR.
>
> Please note that 2 IPR had been disclosed on the individual version of
> this document https://datatracker.ietf.org/ipr/search/?submit=3Ddraft&id=
=3D
> draft-psarkar-rtgwg-multihomed-prefix-lfa
> which are not disclosed on https://datatracker.ietf.org/
> ipr/search/?submit=3Ddraft&id=3Ddraft-ietf-rtgwg-multihomed-prefix-lfa no=
r
> automatically referenced by the datatracker.
>
> Probably related, the datatracker document/replaces field seems to be lef=
t
> blank. Possibly, it could be filled with 2 drafts which have been merged:
> draft-psarkar-rtgwg-multihomed-prefix-lfa & draft-chunduri-rtgwg-lfa-
> extended-procedures
>
> Best regards,
> --Bruno
>
>
>  > -----Original Message-----
>  > From: Jeff Tantsura [mailto:jefftant.ietf@gmail.com]  > Sent: Monday,
> October 23, 2017 11:30 PM  > To: RTGWG  > Cc: 'rtgwg-chairs';
> draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org
>  > Subject: IPR call for draft-ietf-rtgwg-multihomed-prefix-lfa
>  >
>  > Dear RTGWG,
>  >
>  > While authors are addressing shepherd=E2=80=99 comments, co-chairs wou=
ld like
> to start IPR call on the  > draft.
>  >
>  > If you are listed as a document author or contributor, please respond
> to this  > email of whether or not you are aware of any relevant IPR.
>  > The response needs to be sent to the RTGWG mailing list.
>  > The document will not advance to the next stage until a response has
> been  > received from each author and each individual that has contribute=
d
> to the document.
>  >
>  > Thanks,
>  > Jeff and Chris
>  >
>  >
>
>
> ____________________________________________________________
> _____________________________________________________________
>
> Ce message et ses pieces jointes peuvent contenir des informations
> confidentielles ou privilegiees et ne doivent donc pas etre diffuses,
> exploites ou copies sans autorisation. Si vous avez recu ce message par
> erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les
> pieces jointes. Les messages electroniques etant susceptibles d'alteratio=
n,
> Orange decline toute responsabilite si ce message a ete altere, deforme o=
u
> falsifie. Merci.
>
> This message and its attachments may contain confidential or privileged
> information that may be protected by law; they should not be distributed,
> used or copied without authorisation.
> 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 bee=
n
> modified, changed or falsified.
> Thank you.
>
>

--001a1140fa44692513055c5c9251
Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr">not aware of any patents beyond the Juniper declared one. =
- /hannes</div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On=
 Tue, Oct 24, 2017 at 7:26 PM, Uma Chunduri <span dir=3D"ltr">&lt;<a href=
=3D"mailto:uma.chunduri@huawei.com" target=3D"_blank">uma.chunduri@huawei.c=
om</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"marg=
in:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear Chairs &amp=
; WG,<br>
<br>
Not aware of any=C2=A0 non-disclosed IPRs related to this draft (yes, discl=
osures happened on the non-WG version of this draft, as pointed by Bruno be=
low).<br>
<br>
--<br>
Uma C.<br>
<br>
-----Original Message-----<br>
From: <a href=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.co=
m</a> [mailto:<a href=3D"mailto:bruno.decraene@orange.com">bruno.decraene@o=
range.<wbr>com</a>]<br>
Sent: Tuesday, October 24, 2017 1:22 AM<br>
To: Jeff Tantsura &lt;<a href=3D"mailto:jefftant.ietf@gmail.com">jefftant.i=
etf@gmail.com</a>&gt;; &#39;rtgwg-chairs&#39; &lt;<a href=3D"mailto:rtgwg-c=
hairs@tools.ietf.org">rtgwg-chairs@tools.ietf.org</a>&gt;<br>
Cc: <a href=3D"mailto:draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org">draf=
t-ietf-rtgwg-multihomed-<wbr>prefix-lfa@ietf.org</a>; RTGWG &lt;<a href=3D"=
mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>&gt;<br>
Subject: RE: IPR call for draft-ietf-rtgwg-multihomed-<wbr>prefix-lfa<br>
<br>
Hi chairs, all<br>
<br>
I&#39;m not aware of non-disclosed IPR.<br>
<br>
Please note that 2 IPR had been disclosed on the individual version of this=
 document <a href=3D"https://datatracker.ietf.org/ipr/search/?submit=3Ddraf=
t&amp;id=3Ddraft-psarkar-rtgwg-multihomed-prefix-lfa" rel=3D"noreferrer" ta=
rget=3D"_blank">https://datatracker.ietf.org/<wbr>ipr/search/?submit=3Ddraf=
t&amp;id=3D<wbr>draft-psarkar-rtgwg-<wbr>multihomed-prefix-lfa</a><br>
which are not disclosed on <a href=3D"https://datatracker.ietf.org/ipr/sear=
ch/?submit=3Ddraft&amp;id=3Ddraft-ietf-rtgwg-multihomed-prefix-lfa" rel=3D"=
noreferrer" target=3D"_blank">https://datatracker.ietf.org/<wbr>ipr/search/=
?submit=3Ddraft&amp;id=3D<wbr>draft-ietf-rtgwg-multihomed-<wbr>prefix-lfa</=
a> nor automatically referenced by the datatracker.<br>
<br>
Probably related, the datatracker document/replaces field seems to be left =
blank. Possibly, it could be filled with 2 drafts which have been merged: d=
raft-psarkar-rtgwg-<wbr>multihomed-prefix-lfa &amp; draft-chunduri-rtgwg-lf=
a-<wbr>extended-procedures<br>
<br>
Best regards,<br>
--Bruno<br>
<br>
<br>
=C2=A0&gt; -----Original Message-----<br>
=C2=A0&gt; From: Jeff Tantsura [mailto:<a href=3D"mailto:jefftant.ietf@gmai=
l.com">jefftant.ietf@gmail.<wbr>com</a>]=C2=A0 &gt; Sent: Monday, October 2=
3, 2017 11:30 PM=C2=A0 &gt; To: RTGWG=C2=A0 &gt; Cc: &#39;rtgwg-chairs&#39;=
; <a href=3D"mailto:draft-ietf-rtgwg-multihomed-prefix-lfa@ietf.org">draft-=
ietf-rtgwg-multihomed-<wbr>prefix-lfa@ietf.org</a><br>
=C2=A0&gt; Subject: IPR call for draft-ietf-rtgwg-multihomed-<wbr>prefix-lf=
a<br>
=C2=A0&gt;<br>
=C2=A0&gt; Dear RTGWG,<br>
=C2=A0&gt;<br>
=C2=A0&gt; While authors are addressing shepherd=E2=80=99 comments, co-chai=
rs would like to start IPR call on the=C2=A0 &gt; draft.<br>
=C2=A0&gt;<br>
=C2=A0&gt; If you are listed as a document author or contributor, please re=
spond to this=C2=A0 &gt; email of whether or not you are aware of any relev=
ant IPR.<br>
=C2=A0&gt; The response needs to be sent to the RTGWG mailing list.<br>
=C2=A0&gt; The document will not advance to the next stage until a response=
 has been=C2=A0 &gt; received from each author and each individual that has=
 contributed to the document.<br>
=C2=A0&gt;<br>
=C2=A0&gt; Thanks,<br>
=C2=A0&gt; Jeff and Chris<br>
=C2=A0&gt;<br>
=C2=A0&gt;<br>
<br>
<br>
______________________________<wbr>______________________________<wbr>_____=
_________________________<wbr>______________________________<wbr>_<br>
<br>
Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou =
copies sans autorisation. Si vous avez recu ce message par erreur, veuillez=
 le signaler a l&#39;expediteur et le detruire ainsi que les pieces jointes=
. Les messages electroniques etant susceptibles d&#39;alteration, Orange de=
cline toute responsabilite si ce message a ete altere, deforme ou falsifie.=
 Merci.<br>
<br>
This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law; they should not be distributed, used=
 or copied without authorisation.<br>
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.<br>
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.<br>
Thank you.<br>
<br>
</blockquote></div><br></div>

--001a1140fa44692513055c5c9251--


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Date: Wed, 25 Oct 2017 14:25:41 -0700
Subject: Re: Request for WG adoption of for draft-bryant-rtgwg-param-sync
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: RTGWG <rtgwg@ietf.org>
CC: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, <draft-bryant-rtgwg-param-sync@ietf.org>
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Dear RTGWG,

The draft has been adopted as the working group draft.
Authors =E2=80=93 please re-publish.

Cheers,
Jeff

-----Original Message-----
From: Jeff Tantsura <jefftant.ietf@gmail.com>
Date: Friday, August 4, 2017 at 12:46
To: RTGWG <rtgwg@ietf.org>
Cc: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, <draft-bryant-rtgwg-param=
-sync@ietf.org>
Subject: Request for WG adoption of for draft-bryant-rtgwg-param-sync

    Dear RTGWG,
   =20
    The authors have requested the RTGWG to adopt for draft-bryant-rtgwg-pa=
ram-sync as the working group document.=20
   =20
    WG expressed support during the last RTGWG meeting and the authors have=
 addressed all the comments received.
    Please indicate support or no-support by August 18, 2017.
   =20
    If you are listed as a document author or contributor please respond to=
 this email stating of whether or not you are aware of any relevant IPR. The=
 response needs to be sent to the RTGWG mailing list. The document will not =
advance to the next stage until a response has been received from each autho=
r and each individual that has contributed to the document.
   =20
    Cheers,
    Jeff=20
   =20
   =20
   =20
   =20



From nobody Thu Oct 26 12:01:13 2017
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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 Routing Area Working Group WG of the IETF.

        Title           : A YANG Data Model for Virtual Router Redundancy Protocol (VRRP)
        Authors         : Xufeng Liu
                          Athanasios Kyparlis
                          Ravi Parikh
                          Acee Lindem
                          Mingui Zhang
	Filename        : draft-ietf-rtgwg-yang-vrrp-06.txt
	Pages           : 42
	Date            : 2017-10-26

Abstract:
   This document describes a data model for Virtual Router Redundancy
   Protocol (VRRP).  Both version 2 and version 3 of VRRP are covered.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-yang-vrrp-06
https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-yang-vrrp-06

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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 Routing Area Working Group WG of the IETF.

        Title           : A YANG Data Model for Routing Information Protocol (RIP)
        Authors         : Xufeng Liu
                          Prateek Sarda
                          Vikram Choudhary
	Filename        : draft-ietf-rtgwg-yang-rip-06.txt
	Pages           : 43
	Date            : 2017-10-26

Abstract:
   This document describes a data model for the Routing Information
   Protocol (RIP).  Both RIP version 2 and RIPng are covered.


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From nobody Fri Oct 27 02:11:44 2017
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Subject: Re: I-D Action: draft-ietf-rtgwg-yang-vrrp-06.txt
To: "draft-ietf-rtgwg-yang-vrrp@ietf.org" <draft-ietf-rtgwg-yang-vrrp@ietf.org>, rtgwg@ietf.org
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From: Robert Wilton <rwilton@cisco.com>
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Hi authors,

One minor nit, I think that you need to update the tree diagram to show 
that the top level "vrrp" container is config false.

E.g.

OLD:

    module: ietf-vrrp
       +--rw vrrp
          +--ro <global operational states>
          +--ro statistics
             +--ro discontinuity-datetime?   yang:date-and-time
             +--ro <global statistics>

NEW:


    module: ietf-vrrp
       +--ro vrrp
          +--ro <global operational states>
          +--ro statistics
             +--ro discontinuity-datetime?   yang:date-and-time
             +--ro <global statistics>


Otherwise, looks good to me!

Thanks,
Rob


On 26/10/2017 20:01, 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 Routing Area Working Group WG of the IETF.
>
>          Title           : A YANG Data Model for Virtual Router Redundancy Protocol (VRRP)
>          Authors         : Xufeng Liu
>                            Athanasios Kyparlis
>                            Ravi Parikh
>                            Acee Lindem
>                            Mingui Zhang
> 	Filename        : draft-ietf-rtgwg-yang-vrrp-06.txt
> 	Pages           : 42
> 	Date            : 2017-10-26
>
> Abstract:
>     This document describes a data model for Virtual Router Redundancy
>     Protocol (VRRP).  Both version 2 and version 3 of VRRP are covered.
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/
>
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-rtgwg-yang-vrrp-06
> https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-yang-vrrp-06
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-yang-vrrp-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/
>
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg
> .
>


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<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    <p>Hi authors,</p>
    <p>One minor nit, I think that you need to update the tree diagram
      to show that the top level "vrrp" container is config false.</p>
    <p>E.g.<br>
    </p>
    <p>OLD:</p>
    <pre style="box-sizing: border-box; overflow: auto; font-family: &quot;PT Mono&quot;, Monaco, monospace; font-size: 14px; display: block; padding: 10px; margin: 0px 0px 10.5px; line-height: 1.214; color: rgb(0, 0, 0); word-break: break-all; word-wrap: break-word; background-color: rgb(255, 253, 245); border: 1px solid rgb(204, 204, 204); border-radius: 4px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">   module: ietf-vrrp
      +--rw vrrp
         +--ro &lt;global operational states&gt;
         +--ro statistics
            +--ro discontinuity-datetime?   yang:date-and-time
            +--ro &lt;global statistics&gt;</pre>
    <p>NEW:<br>
    </p>
    <br>
    <pre style="box-sizing: border-box; overflow: auto; font-family: &quot;PT Mono&quot;, Monaco, monospace; font-size: 14px; display: block; padding: 10px; margin: 0px 0px 10.5px; line-height: 1.214; color: rgb(0, 0, 0); word-break: break-all; word-wrap: break-word; background-color: rgb(255, 253, 245); border: 1px solid rgb(204, 204, 204); border-radius: 4px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">   module: ietf-vrrp
      +--ro vrrp
         +--ro &lt;global operational states&gt;
         +--ro statistics
            +--ro discontinuity-datetime?   yang:date-and-time
            +--ro &lt;global statistics&gt;</pre>
    <div class="moz-cite-prefix"><br>
      Otherwise, looks good to me!<br>
      <br>
      Thanks,<br>
      Rob<br>
      <br>
      <br>
      On 26/10/2017 20:01, <a class="moz-txt-link-abbreviated" href="mailto:internet-drafts@ietf.org">internet-drafts@ietf.org</a> wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:150904446702.24061.12203024588322384758@ietfa.amsl.com">
      <pre wrap="">
A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Routing Area Working Group WG of the IETF.

        Title           : A YANG Data Model for Virtual Router Redundancy Protocol (VRRP)
        Authors         : Xufeng Liu
                          Athanasios Kyparlis
                          Ravi Parikh
                          Acee Lindem
                          Mingui Zhang
	Filename        : draft-ietf-rtgwg-yang-vrrp-06.txt
	Pages           : 42
	Date            : 2017-10-26

Abstract:
   This document describes a data model for Virtual Router Redundancy
   Protocol (VRRP).  Both version 2 and version 3 of VRRP are covered.


The IETF datatracker status page for this draft is:
<a class="moz-txt-link-freetext" href="https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/">https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/</a>

There are also htmlized versions available at:
<a class="moz-txt-link-freetext" href="https://tools.ietf.org/html/draft-ietf-rtgwg-yang-vrrp-06">https://tools.ietf.org/html/draft-ietf-rtgwg-yang-vrrp-06</a>
<a class="moz-txt-link-freetext" href="https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-yang-vrrp-06">https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-yang-vrrp-06</a>

A diff from the previous version is available at:
<a class="moz-txt-link-freetext" href="https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-yang-vrrp-06">https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-yang-vrrp-06</a>


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:
<a class="moz-txt-link-freetext" href="ftp://ftp.ietf.org/internet-drafts/">ftp://ftp.ietf.org/internet-drafts/</a>

_______________________________________________
rtgwg mailing list
<a class="moz-txt-link-abbreviated" href="mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>
<a class="moz-txt-link-freetext" href="https://www.ietf.org/mailman/listinfo/rtgwg">https://www.ietf.org/mailman/listinfo/rtgwg</a>
.

</pre>
    </blockquote>
    <br>
  </body>
</html>

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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 Routing Area Working Group WG of the IETF.

        Title           : A YANG Data Model for Virtual Router Redundancy Protocol (VRRP)
        Authors         : Xufeng Liu
                          Athanasios Kyparlis
                          Ravi Parikh
                          Acee Lindem
                          Mingui Zhang
	Filename        : draft-ietf-rtgwg-yang-vrrp-07.txt
	Pages           : 42
	Date            : 2017-10-27

Abstract:
   This document describes a data model for Virtual Router Redundancy
   Protocol (VRRP).  Both version 2 and version 3 of VRRP are covered.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-yang-vrrp-07
https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-yang-vrrp-07

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-yang-vrrp-07


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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Subject: Re: Request for WG adoption of for draft-bryant-rtgwg-param-sync
To: Jeff Tantsura <jefftant.ietf@gmail.com>, RTGWG <rtgwg@ietf.org>
Cc: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, draft-bryant-rtgwg-param-sync@ietf.org
References: <54854841-A47A-46B8-9563-4C7901179AF2@gmail.com> <7BE47735-C58D-4BFB-A6F7-603FDC7A4892@gmail.com>
From: Stewart Bryant <stewart.bryant@gmail.com>
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Date: Sat, 28 Oct 2017 20:49:39 +0100
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Submitted as draft-ietf-rtgwg-routing-timer-param-sync as requested by 
Les in WG adoption poll. I have made no other changes. I will check 
through to see if there were any other comments that need addressing, 
but it is always good to baseline with the same text that went into the 
WG adoption poll.

Hopefully the chairs are OK with the new name and the approach.

- Stewart


On 25/10/2017 22:25, Jeff Tantsura wrote:
> Dear RTGWG,
>
> The draft has been adopted as the working group draft.
> Authors – please re-publish.
>
> Cheers,
> Jeff
>
> -----Original Message-----
> From: Jeff Tantsura <jefftant.ietf@gmail.com>
> Date: Friday, August 4, 2017 at 12:46
> To: RTGWG <rtgwg@ietf.org>
> Cc: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, <draft-bryant-rtgwg-param-sync@ietf.org>
> Subject: Request for WG adoption of for draft-bryant-rtgwg-param-sync
>
>      Dear RTGWG,
>      
>      The authors have requested the RTGWG to adopt for draft-bryant-rtgwg-param-sync as the working group document.
>      
>      WG expressed support during the last RTGWG meeting and the authors have addressed all the comments received.
>      Please indicate support or no-support by August 18, 2017.
>      
>      If you are listed as a document author or contributor please respond to this email stating of whether or not you are aware of any relevant IPR. The response needs to be sent to the RTGWG mailing list. The document will not advance to the next stage until a response has been received from each author and each individual that has contributed to the document.
>      
>      Cheers,
>      Jeff
>      
>      
>      
>      
>
>


--------------C3532EE1F611DA08F984B1E0
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<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    <p>Submitted as <span style="color: rgb(34, 34, 34); font-family:
        &quot;PT Serif&quot;, Palatino, &quot;Neue Swift&quot;, serif;
        font-size: 15px; font-style: normal; font-variant-ligatures:
        normal; font-variant-caps: normal; font-weight: normal;
        letter-spacing: normal; orphans: 2; text-align: start;
        text-indent: 0px; text-transform: none; white-space: normal;
        widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;
        background-color: rgb(249, 249, 249); text-decoration-style:
        initial; text-decoration-color: initial; display: inline
        !important; float: none;">draft-ietf-rtgwg-routing-timer-param-sync
        as requested by Les in WG adoption poll. I have made no other
        changes. I will check through to see if there were any other
        comments that need addressing, but it is always good to baseline
        with the same text that went into the WG adoption poll.<br>
      </span></p>
    <p><span style="color: rgb(34, 34, 34); font-family: &quot;PT
        Serif&quot;, Palatino, &quot;Neue Swift&quot;, serif; font-size:
        15px; font-style: normal; font-variant-ligatures: normal;
        font-variant-caps: normal; font-weight: normal; letter-spacing:
        normal; orphans: 2; text-align: start; text-indent: 0px;
        text-transform: none; white-space: normal; widows: 2;
        word-spacing: 0px; -webkit-text-stroke-width: 0px;
        background-color: rgb(249, 249, 249); text-decoration-style:
        initial; text-decoration-color: initial; display: inline
        !important; float: none;">Hopefully the chairs are OK with the
        new name and the approach.<br>
      </span></p>
    <p><span style="color: rgb(34, 34, 34); font-family: &quot;PT
        Serif&quot;, Palatino, &quot;Neue Swift&quot;, serif; font-size:
        15px; font-style: normal; font-variant-ligatures: normal;
        font-variant-caps: normal; font-weight: normal; letter-spacing:
        normal; orphans: 2; text-align: start; text-indent: 0px;
        text-transform: none; white-space: normal; widows: 2;
        word-spacing: 0px; -webkit-text-stroke-width: 0px;
        background-color: rgb(249, 249, 249); text-decoration-style:
        initial; text-decoration-color: initial; display: inline
        !important; float: none;">- Stewart<br>
      </span></p>
    <br>
    <div class="moz-cite-prefix">On 25/10/2017 22:25, Jeff Tantsura
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:7BE47735-C58D-4BFB-A6F7-603FDC7A4892@gmail.com">
      <pre wrap="">Dear RTGWG,

The draft has been adopted as the working group draft.
Authors – please re-publish.

Cheers,
Jeff

-----Original Message-----
From: Jeff Tantsura <a class="moz-txt-link-rfc2396E" href="mailto:jefftant.ietf@gmail.com">&lt;jefftant.ietf@gmail.com&gt;</a>
Date: Friday, August 4, 2017 at 12:46
To: RTGWG <a class="moz-txt-link-rfc2396E" href="mailto:rtgwg@ietf.org">&lt;rtgwg@ietf.org&gt;</a>
Cc: 'rtgwg-chairs' <a class="moz-txt-link-rfc2396E" href="mailto:rtgwg-chairs@tools.ietf.org">&lt;rtgwg-chairs@tools.ietf.org&gt;</a>, <a class="moz-txt-link-rfc2396E" href="mailto:draft-bryant-rtgwg-param-sync@ietf.org">&lt;draft-bryant-rtgwg-param-sync@ietf.org&gt;</a>
Subject: Request for WG adoption of for draft-bryant-rtgwg-param-sync

    Dear RTGWG,
    
    The authors have requested the RTGWG to adopt for draft-bryant-rtgwg-param-sync as the working group document. 
    
    WG expressed support during the last RTGWG meeting and the authors have addressed all the comments received.
    Please indicate support or no-support by August 18, 2017.
    
    If you are listed as a document author or contributor please respond to this email stating of whether or not you are aware of any relevant IPR. The response needs to be sent to the RTGWG mailing list. The document will not advance to the next stage until a response has been received from each author and each individual that has contributed to the document.
    
    Cheers,
    Jeff 
    
    
    
    


</pre>
    </blockquote>
    <br>
  </body>
</html>

--------------C3532EE1F611DA08F984B1E0--


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<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dgb2312">
<style type=3D"text/css" style=3D"display:none;"><!-- P {margin-top:0;margi=
n-bottom:0;} --></style>
</head>
<body dir=3D"ltr">
<div id=3D"divtagdefaultwrapper" dir=3D"ltr" style=3D"font-size: 12pt; colo=
r: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif, EmojiFont, &q=
uot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;, NotoColorEmoji, &q=
uot;Segoe UI Symbol&quot;, &quot;Android Emoji&quot;, EmojiSymbols;">
<p>Hi, dear all.</p>
<p>Recently we have submitted several drafts on CU-separated BNG device.&nb=
sp;As CU-separated BNG is a bandnew architecture with&nbsp;<span style=3D"f=
ont-family:Calibri,sans-serif; font-size:16px">a control plane (BNG-CP) and=
 user plane (BNG-UP) separation. As this is
 new, information model and related protocols are under research for a long=
 time in several small groups. Based on these research points, we have form=
ed a small design team named CUSPDT(CU-separated-protocol design team) aimi=
ng at resolving protocol based problems
 on CU-separated BNG. Anyway, it's not an offical design team. And it's ver=
y shy to appear to you&nbsp;for the first time&nbsp;:)</span></p>
<p><span style=3D"font-family:Calibri,sans-serif; font-size:16px">The only =
team rules&nbsp;is that: Everyone is welcome to join our design team sharin=
g opinions and suggestions.&nbsp;</span></p>
<p><span style=3D"font-family:Calibri,sans-serif; font-size:16px"><br>
</span></p>
<p><span style=3D"font-family:Calibri,sans-serif; font-size:16px">Below, I =
list all the related drafts while there are two new drafts contributed by t=
he design team. One is the requirement of&nbsp;CU-separated-protocols and a=
nother is the deployment model of CU-separated
 BNG in the real network.</span></p>
<p><span style=3D"font-family:Calibri,sans-serif; font-size:16px"><br>
</span></p>
<p>Requirements of the protocols between CP and UP.</p>
<p><span style=3D"font-family:Calibri,sans-serif; font-size:16px"><a href=
=3D"https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cusp-requirements/"=
 class=3D"OWAAutoLink" id=3D"LPlnk427798" previewremoved=3D"true">https://d=
atatracker.ietf.org/doc/draft-cuspdt-rtgwg-cusp-requirements/</a><br>
</span></p>
<p>CU-separated BNG device deployment model</p>
<p><span style=3D"font-family:Calibri,sans-serif; font-size:16px"><a href=
=3D"https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cu-separation-bng-d=
eployment/" class=3D"OWAAutoLink" id=3D"LPlnk880036" previewremoved=3D"true=
">https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cu-separation-bng-dep=
loyment/</a><br>
</span></p>
<p><font face=3D"Calibri, sans-serif"><br>
</font></p>
<p><font face=3D"Calibri, sans-serif">Recently, there are other related dra=
fts submitted before the design team constructed.</font></p>
<p><br>
</p>
<p>Architecture of&nbsp;<span style=3D"font-family:Calibri,Helvetica,sans-s=
erif,EmojiFont,&quot;Apple Color Emoji&quot;,&quot;Segoe UI Emoji&quot;,Not=
oColorEmoji,&quot;Segoe UI Symbol&quot;,&quot;Android Emoji&quot;,EmojiSymb=
ols; font-size:16px">CU-separated BNG device referring to BBF cloud co</spa=
n></p>
<p><font face=3D"Calibri, sans-serif"><a href=3D"https://datatracker.ietf.o=
rg/doc/draft-gu-nfvrg-cloud-bng-architecture/" class=3D"OWAAutoLink" id=3D"=
LPlnk679681" previewremoved=3D"true">https://datatracker.ietf.org/doc/draft=
-gu-nfvrg-cloud-bng-architecture/</a></font></p>
<p><font face=3D"Calibri, sans-serif"><a href=3D"https://datatracker.ietf.o=
rg/doc/draft-gu-nfvrg-cloud-bng-architecture/" class=3D"OWAAutoLink"></a>Th=
e information model standardized in BNG information model draft</font></p>
<p><font face=3D"Calibri, sans-serif"><a href=3D"https://datatracker.ietf.o=
rg/doc/draft-wcg-i2rs-cu-separation-infor-model/" class=3D"OWAAutoLink" id=
=3D"LPlnk440378" previewremoved=3D"true">https://datatracker.ietf.org/doc/d=
raft-wcg-i2rs-cu-separation-infor-model/</a>Due
 to our research and trial, we have found out that there are several inform=
ation</font></p>
<p><font face=3D"Calibri, sans-serif">VXLAN-GPE extension for BNG devices</=
font></p>
<p><font face=3D"Calibri, sans-serif"><a href=3D"https://datatracker.ietf.o=
rg/doc/draft-huang-nvo3-vxlan-gpe-extension-for-vbng/" class=3D"OWAAutoLink=
" id=3D"LPlnk480375" previewremoved=3D"true">https://datatracker.ietf.org/d=
oc/draft-huang-nvo3-vxlan-gpe-extension-for-vbng/</a><br>
</font></p>
<p><font face=3D"Calibri, sans-serif">YANG datamodel for CU and UP interfac=
e</font></p>
<p><font face=3D"Calibri, sans-serif"><a href=3D"https://datatracker.ietf.o=
rg/doc/draft-hu-rtgwg-cu-separation-yang-model/" class=3D"OWAAutoLink" id=
=3D"LPlnk949072" previewremoved=3D"true">https://datatracker.ietf.org/doc/d=
raft-hu-rtgwg-cu-separation-yang-model/</a><br>
<br>
We hope that&nbsp;authors from all these related drafts and others who are =
interested in this can work together though the design team CUSPDT.&nbsp;<b=
r>
</font></p>
<p><br>
</p>
<p>BTW. CUSPDT can be Conneted all the time. And it's Unique. We need a Sag=
e like you. Let's start this work with Passion!</p>
<p><br>
</p>
<p>Best regards.</p>
<p class=3D"MsoNormal" align=3D"left"><span lang=3D"EN-US" style=3D"font-si=
ze:10.0pt; font-family:&quot;Verdana&quot;,sans-serif">--------------------=
---------------------------------------</span></p>
<p class=3D"MsoNormal" align=3D"left"><span lang=3D"EN-US" style=3D"font-si=
ze:10.0pt; font-family:&quot;Verdana&quot;,sans-serif">Rong Gu<br>
China Mobile Research Institute<br>
No.32 Xuanwumen West Street, Xicheng District<br>
Beijing, China, 100053<br>
Mobile: &#43;86 13811520541<br>
Phone: &#43;86 10 15801696688 Ext. 36211<br>
Email: <span style=3D"color:blue"><a href=3D"mailto:huanglu@chinamobile.com=
">gurong@chinamobile.com</a></span></span></p>
<p></p>
</div>
</body>
</html>

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Subject: Re: Give the introduction of CUSP design team and Solicit comments for all the related drafts of CU-seperated BNG
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Hi Rong,

Are you planning to provide an update at IETF100?=20

Regards,
Jeff

> On Oct 28, 2017, at 17:42, =E9=A1=BE =E6=88=8E <gurong_cmcc@outlook.com> w=
rote:
>=20
> Hi, dear all.
>=20
> Recently we have submitted several drafts on CU-separated BNG device. As C=
U-separated BNG is a bandnew architecture with a control plane (BNG-CP) and u=
ser plane (BNG-UP) separation. As this is new, information model and related=
 protocols are under research for a long time in several small groups. Based=
 on these research points, we have formed a small design team named CUSPDT(C=
U-separated-protocol design team) aiming at resolving protocol based problem=
s on CU-separated BNG. Anyway, it's not an offical design team. And it's ver=
y shy to appear to you for the first time :)
>=20
> The only team rules is that: Everyone is welcome to join our design team s=
haring opinions and suggestions.=20
>=20
>=20
>=20
> Below, I list all the related drafts while there are two new drafts contri=
buted by the design team. One is the requirement of CU-separated-protocols a=
nd another is the deployment model of CU-separated BNG in the real network.
>=20
>=20
>=20
> Requirements of the protocols between CP and UP.
>=20
> https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cusp-requirements/
>=20
> CU-separated BNG device deployment model
>=20
> https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cu-separation-bng-depl=
oyment/
>=20
>=20
>=20
> Recently, there are other related drafts submitted before the design team c=
onstructed.
>=20
>=20
> Architecture of CU-separated BNG device referring to BBF cloud co
>=20
> https://datatracker.ietf.org/doc/draft-gu-nfvrg-cloud-bng-architecture/
>=20
> The information model standardized in BNG information model draft
>=20
> https://datatracker.ietf.org/doc/draft-wcg-i2rs-cu-separation-infor-model/=
Due to our research and trial, we have found out that there are several info=
rmation
>=20
> VXLAN-GPE extension for BNG devices
>=20
> https://datatracker.ietf.org/doc/draft-huang-nvo3-vxlan-gpe-extension-for-=
vbng/
>=20
> YANG datamodel for CU and UP interface
>=20
> https://datatracker.ietf.org/doc/draft-hu-rtgwg-cu-separation-yang-model/
>=20
> We hope that authors from all these related drafts and others who are inte=
rested in this can work together though the design team CUSPDT.=20
>=20
>=20
> BTW. CUSPDT can be Conneted all the time. And it's Unique. We need a Sage l=
ike you. Let's start this work with Passion!
>=20
>=20
> Best regards.
>=20
> -----------------------------------------------------------
>=20
> Rong Gu
> China Mobile Research Institute
> No.32 Xuanwumen West Street, Xicheng District
> Beijing, China, 100053
> Mobile: +86 13811520541
> Phone: +86 10 15801696688 Ext. 36211
> Email: gurong@chinamobile.com
>=20
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg

--Apple-Mail-64C30803-3017-4234-B9DE-BDC079C332FF
Content-Type: text/html;
	charset=utf-8
Content-Transfer-Encoding: quoted-printable

<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Hi Rong,<div><br></div><div>Are you plannin=
g to provide an update at IETF100?&nbsp;<br><br><div id=3D"AppleMailSignatur=
e">Regards,<div>Jeff</div></div><div><br>On Oct 28, 2017, at 17:42, =E9=A1=BE=
 =E6=88=8E &lt;<a href=3D"mailto:gurong_cmcc@outlook.com">gurong_cmcc@outloo=
k.com</a>&gt; wrote:<br><br></div><blockquote type=3D"cite"><div>

<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dgb2312">



<div id=3D"divtagdefaultwrapper" dir=3D"ltr" style=3D"font-size: 12pt; color=
: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif, EmojiFont, &quo=
t;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;, NotoColorEmoji, &quot=
;Segoe UI Symbol&quot;, &quot;Android Emoji&quot;, EmojiSymbols;">
<p>Hi, dear all.</p>
<p>Recently we have submitted several drafts on CU-separated BNG device.&nbs=
p;As CU-separated BNG is a bandnew architecture with&nbsp;<span style=3D"fon=
t-family:Calibri,sans-serif; font-size:16px">a control plane (BNG-CP) and us=
er plane (BNG-UP) separation. As this is
 new, information model and related protocols are under research for a long t=
ime in several small groups. Based on these research points, we have formed a=
 small design team named CUSPDT(CU-separated-protocol design team) aiming at=
 resolving protocol based problems
 on CU-separated BNG. Anyway, it's not an offical design team. And it's very=
 shy to appear to you&nbsp;for the first time&nbsp;:)</span></p>
<p><span style=3D"font-family:Calibri,sans-serif; font-size:16px">The only t=
eam rules&nbsp;is that: Everyone is welcome to join our design team sharing o=
pinions and suggestions.&nbsp;</span></p>
<p><span style=3D"font-family:Calibri,sans-serif; font-size:16px"><br>
</span></p>
<p><span style=3D"font-family:Calibri,sans-serif; font-size:16px">Below, I l=
ist all the related drafts while there are two new drafts contributed by the=
 design team. One is the requirement of&nbsp;CU-separated-protocols and anot=
her is the deployment model of CU-separated
 BNG in the real network.</span></p>
<p><span style=3D"font-family:Calibri,sans-serif; font-size:16px"><br>
</span></p>
<p>Requirements of the protocols between CP and UP.</p>
<p><span style=3D"font-family:Calibri,sans-serif; font-size:16px"><a href=3D=
"https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cusp-requirements/" cla=
ss=3D"OWAAutoLink" id=3D"LPlnk427798" previewremoved=3D"true">https://datatr=
acker.ietf.org/doc/draft-cuspdt-rtgwg-cusp-requirements/</a><br>
</span></p>
<p>CU-separated BNG device deployment model</p>
<p><span style=3D"font-family:Calibri,sans-serif; font-size:16px"><a href=3D=
"https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cu-separation-bng-deplo=
yment/" class=3D"OWAAutoLink" id=3D"LPlnk880036" previewremoved=3D"true">htt=
ps://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cu-separation-bng-deploymen=
t/</a><br>
</span></p>
<p><font face=3D"Calibri, sans-serif"><br>
</font></p>
<p><font face=3D"Calibri, sans-serif">Recently, there are other related draf=
ts submitted before the design team constructed.</font></p>
<p><br>
</p>
<p>Architecture of&nbsp;<span style=3D"font-family:Calibri,Helvetica,sans-se=
rif,EmojiFont,&quot;Apple Color Emoji&quot;,&quot;Segoe UI Emoji&quot;,NotoC=
olorEmoji,&quot;Segoe UI Symbol&quot;,&quot;Android Emoji&quot;,EmojiSymbols=
; font-size:16px">CU-separated BNG device referring to BBF cloud co</span></=
p>
<p><font face=3D"Calibri, sans-serif"><a href=3D"https://datatracker.ietf.or=
g/doc/draft-gu-nfvrg-cloud-bng-architecture/" class=3D"OWAAutoLink" id=3D"LP=
lnk679681" previewremoved=3D"true">https://datatracker.ietf.org/doc/draft-gu=
-nfvrg-cloud-bng-architecture/</a></font></p>
<p><font face=3D"Calibri, sans-serif"><a href=3D"https://datatracker.ietf.or=
g/doc/draft-gu-nfvrg-cloud-bng-architecture/" class=3D"OWAAutoLink"></a>The i=
nformation model standardized in BNG information model draft</font></p>
<p><font face=3D"Calibri, sans-serif"><a href=3D"https://datatracker.ietf.or=
g/doc/draft-wcg-i2rs-cu-separation-infor-model/" class=3D"OWAAutoLink" id=3D=
"LPlnk440378" previewremoved=3D"true">https://datatracker.ietf.org/doc/draft=
-wcg-i2rs-cu-separation-infor-model/</a>Due
 to our research and trial, we have found out that there are several informa=
tion</font></p>
<p><font face=3D"Calibri, sans-serif">VXLAN-GPE extension for BNG devices</f=
ont></p>
<p><font face=3D"Calibri, sans-serif"><a href=3D"https://datatracker.ietf.or=
g/doc/draft-huang-nvo3-vxlan-gpe-extension-for-vbng/" class=3D"OWAAutoLink" i=
d=3D"LPlnk480375" previewremoved=3D"true">https://datatracker.ietf.org/doc/d=
raft-huang-nvo3-vxlan-gpe-extension-for-vbng/</a><br>
</font></p>
<p><font face=3D"Calibri, sans-serif">YANG datamodel for CU and UP interface=
</font></p>
<p><font face=3D"Calibri, sans-serif"><a href=3D"https://datatracker.ietf.or=
g/doc/draft-hu-rtgwg-cu-separation-yang-model/" class=3D"OWAAutoLink" id=3D"=
LPlnk949072" previewremoved=3D"true">https://datatracker.ietf.org/doc/draft-=
hu-rtgwg-cu-separation-yang-model/</a><br>
<br>
We hope that&nbsp;authors from all these related drafts and others who are i=
nterested in this can work together though the design team CUSPDT.&nbsp;<br>=

</font></p>
<p><br>
</p>
<p>BTW. CUSPDT can be Conneted all the time. And it's Unique. We need a Sage=
 like you. Let's start this work with Passion!</p>
<p><br>
</p>
<p>Best regards.</p>
<p class=3D"MsoNormal" align=3D"left"><span lang=3D"EN-US" style=3D"font-siz=
e:10.0pt; font-family:&quot;Verdana&quot;,sans-serif">----------------------=
-------------------------------------</span></p>
<p class=3D"MsoNormal" align=3D"left"><span lang=3D"EN-US" style=3D"font-siz=
e:10.0pt; font-family:&quot;Verdana&quot;,sans-serif">Rong Gu<br>
China Mobile Research Institute<br>
No.32 Xuanwumen West Street, Xicheng District<br>
Beijing, China, 100053<br>
Mobile: +86 13811520541<br>
Phone: +86 10 15801696688 Ext. 36211<br>
Email: <span style=3D"color:blue"><a href=3D"mailto:huanglu@chinamobile.com"=
>gurong@chinamobile.com</a></span></span></p>
<p></p>
</div>


</div></blockquote><blockquote type=3D"cite"><div><span>____________________=
___________________________</span><br><span>rtgwg mailing list</span><br><sp=
an><a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a></span><br><span><a h=
ref=3D"https://www.ietf.org/mailman/listinfo/rtgwg">https://www.ietf.org/mai=
lman/listinfo/rtgwg</a></span><br></div></blockquote></div></body></html>=

--Apple-Mail-64C30803-3017-4234-B9DE-BDC079C332FF--


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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 Routing Area Working Group WG of the IETF.

        Title           : Routing Timer Parameter Synchronization
        Authors         : Stewart Bryant
                          Alia Atlas
                          Chris Bowers
	Filename        : draft-ietf-rtgwg-routing-timer-param-sync-00.txt
	Pages           : 10
	Date            : 2017-10-28

Abstract:
   This document describes a mechanism for a link state routing protocol
   to coordinate the value of a routing timer parameter amongst routers
   in the flooding domain.  The document also defines the solution to
   one specific case: the agreement of a common convergence timer value
   for use by routers in network convergence.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-routing-timer-param-sync/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-routing-timer-param-sync-00
https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-routing-timer-param-sync-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:
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Date: Sat, 28 Oct 2017 22:21:58 -0700
Subject: Re: Request for WG adoption of for draft-bryant-rtgwg-param-sync
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: Stewart Bryant <stewart.bryant@gmail.com>, RTGWG <rtgwg@ietf.org>
CC: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, <draft-bryant-rtgwg-param-sync@ietf.org>
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Thread-Topic: Request for WG adoption of for draft-bryant-rtgwg-param-sync
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Stewart,

=20

Thanks, that works, approved.

=20

Cheers,

Jeff

From: Stewart Bryant <stewart.bryant@gmail.com>
Date: Saturday, October 28, 2017 at 12:50
To: Jeff Tantsura <jefftant.ietf@gmail.com>, RTGWG <rtgwg@ietf.org>
Cc: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, <draft-bryant-rtgwg-param=
-sync@ietf.org>
Subject: Re: Request for WG adoption of for draft-bryant-rtgwg-param-sync

=20

Submitted as draft-ietf-rtgwg-routing-timer-param-sync as requested by Les =
in WG adoption poll. I have made no other changes. I will check through to s=
ee if there were any other comments that need addressing, but it is always g=
ood to baseline with the same text that went into the WG adoption poll.


Hopefully the chairs are OK with the new name and the approach.


- Stewart


=20

On 25/10/2017 22:25, Jeff Tantsura wrote:
Dear RTGWG,
=20
The draft has been adopted as the working group draft.
Authors =E2=80=93 please re-publish.
=20
Cheers,
Jeff
=20
-----Original Message-----
From: Jeff Tantsura <jefftant.ietf@gmail.com>
Date: Friday, August 4, 2017 at 12:46
To: RTGWG <rtgwg@ietf.org>
Cc: 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>, <draft-bryant-rtgwg-param=
-sync@ietf.org>
Subject: Request for WG adoption of for draft-bryant-rtgwg-param-sync
=20
=C2=A0=C2=A0=C2=A0 Dear RTGWG,
=C2=A0=C2=A0=C2=A0=20
=C2=A0=C2=A0=C2=A0=C2=A0The authors have requested the RTGWG to adopt for draft-bryant-rtgw=
g-param-sync as the working group document.=20
=C2=A0=C2=A0=C2=A0=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0WG expressed support during the last RTGWG meeting and the authors =
have addressed all the comments received.
=C2=A0=C2=A0=C2=A0 Please indicate support or no-support by August 18, 2017.
=C2=A0=C2=A0=C2=A0=20
=C2=A0=C2=A0=C2=A0=C2=A0If you are listed as a document author or contributor please respon=
d to this email stating of whether or not you are aware of any relevant IPR.=
 The response needs to be sent to the RTGWG mailing list. The document will =
not advance to the next stage until a response has been received from each a=
uthor and each individual that has contributed to the document.
=C2=A0=C2=A0=C2=A0=20
=C2=A0=C2=A0=C2=A0=C2=A0Cheers,
=C2=A0=C2=A0=C2=A0 Jeff=20
=C2=A0=C2=A0=C2=A0=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0
=20
=20




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--></style></head><body bgcolor=3Dwhite lang=3DEN-US link=3Dblue vlink=3Dpurple><di=
v class=3DWordSection1><p class=3DMsoNormal><span style=3D'font-size:14.0pt'>Stewa=
rt,<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:14.0pt'><=
o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:14.0pt'=
>Thanks, that works, approved.<o:p></o:p></span></p><p class=3DMsoNormal><span=
 style=3D'font-size:14.0pt'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><sp=
an style=3D'font-size:14.0pt'>Cheers,<o:p></o:p></span></p><p class=3DMsoNormal>=
<span style=3D'font-size:14.0pt'>Jeff<o:p></o:p></span></p><div style=3D'border:=
none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoN=
ormal style=3D'margin-left:.5in'><b><span style=3D'font-size:12.0pt;color:black'=
>From: </span></b><span style=3D'font-size:12.0pt;color:black'>Stewart Bryant =
&lt;stewart.bryant@gmail.com&gt;<br><b>Date: </b>Saturday, October 28, 2017 =
at 12:50<br><b>To: </b>Jeff Tantsura &lt;jefftant.ietf@gmail.com&gt;, RTGWG =
&lt;rtgwg@ietf.org&gt;<br><b>Cc: </b>'rtgwg-chairs' &lt;rtgwg-chairs@tools.i=
etf.org&gt;, &lt;draft-bryant-rtgwg-param-sync@ietf.org&gt;<br><b>Subject: <=
/b>Re: Request for WG adoption of for draft-bryant-rtgwg-param-sync<o:p></o:=
p></span></p></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'><o:p>&nb=
sp;</o:p></p></div><p style=3D'margin-left:.5in'>Submitted as <span style=3D'fon=
t-size:11.5pt;font-family:"PT Serif";color:#222222;background:#F9F9F9'>draft=
-ietf-rtgwg-routing-timer-param-sync as requested by Les in WG adoption poll=
. I have made no other changes. I will check through to see if there were an=
y other comments that need addressing, but it is always good to baseline wit=
h the same text that went into the WG adoption poll.<br><br></span><o:p></o:=
p></p><p style=3D'margin-left:.5in'><span style=3D'color:#222222;background:#F9F=
9F9'>Hopefully the chairs are OK with the new name and the approach.<br><br>=
</span><o:p></o:p></p><p style=3D'margin-left:.5in'><span style=3D'color:#222222=
;background:#F9F9F9'>- Stewart<br><br></span><o:p></o:p></p><p class=3DMsoNorm=
al style=3D'margin-left:.5in'><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal sty=
le=3D'margin-left:.5in'>On 25/10/2017 22:25, Jeff Tantsura wrote:<o:p></o:p></=
p></div><blockquote style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><pre style=3D=
'margin-left:.5in'>Dear RTGWG,<o:p></o:p></pre><pre style=3D'margin-left:.5in'=
><o:p>&nbsp;</o:p></pre><pre style=3D'margin-left:.5in'>The draft has been ado=
pted as the working group draft.<o:p></o:p></pre><pre style=3D'margin-left:.5i=
n'>Authors =E2=80=93 please re-publish.<o:p></o:p></pre><pre style=3D'margin-left:.5=
in'><o:p>&nbsp;</o:p></pre><pre style=3D'margin-left:.5in'>Cheers,<o:p></o:p><=
/pre><pre style=3D'margin-left:.5in'>Jeff<o:p></o:p></pre><pre style=3D'margin-l=
eft:.5in'><o:p>&nbsp;</o:p></pre><pre style=3D'margin-left:.5in'>-----Original=
 Message-----<o:p></o:p></pre><pre style=3D'margin-left:.5in'>From: Jeff Tants=
ura <a href=3D"mailto:jefftant.ietf@gmail.com">&lt;jefftant.ietf@gmail.com&gt;=
</a><o:p></o:p></pre><pre style=3D'margin-left:.5in'>Date: Friday, August 4, 2=
017 at 12:46<o:p></o:p></pre><pre style=3D'margin-left:.5in'>To: RTGWG <a href=
=3D"mailto:rtgwg@ietf.org">&lt;rtgwg@ietf.org&gt;</a><o:p></o:p></pre><pre sty=
le=3D'margin-left:.5in'>Cc: 'rtgwg-chairs' <a href=3D"mailto:rtgwg-chairs@tools.=
ietf.org">&lt;rtgwg-chairs@tools.ietf.org&gt;</a>, <a href=3D"mailto:draft-bry=
ant-rtgwg-param-sync@ietf.org">&lt;draft-bryant-rtgwg-param-sync@ietf.org&gt=
;</a><o:p></o:p></pre><pre style=3D'margin-left:.5in'>Subject: Request for WG =
adoption of for draft-bryant-rtgwg-param-sync<o:p></o:p></pre><pre style=3D'ma=
rgin-left:.5in'><o:p>&nbsp;</o:p></pre><pre style=3D'margin-left:.5in'>=C2=A0=C2=A0=C2=A0 =
Dear RTGWG,<o:p></o:p></pre><pre style=3D'margin-left:.5in'>=C2=A0=C2=A0=C2=A0 <o:p></o:p>=
</pre><pre style=3D'margin-left:.5in'>=C2=A0=C2=A0=C2=A0=C2=A0The authors have requested the R=
TGWG to adopt for draft-bryant-rtgwg-param-sync as the working group documen=
t. <o:p></o:p></pre><pre style=3D'margin-left:.5in'>=C2=A0=C2=A0=C2=A0=C2=A0<o:p></o:p></pre><=
pre style=3D'margin-left:.5in'>=C2=A0=C2=A0=C2=A0=C2=A0WG expressed support during the last RT=
GWG meeting and the authors have addressed all the comments received.<o:p></=
o:p></pre><pre style=3D'margin-left:.5in'>=C2=A0=C2=A0=C2=A0 Please indicate support or no=
-support by August 18, 2017.<o:p></o:p></pre><pre style=3D'margin-left:.5in'>=C2=
=A0=C2=A0=C2=A0 <o:p></o:p></pre><pre style=3D'margin-left:.5in'>=C2=A0=C2=A0=C2=A0=C2=A0If you are list=
ed as a document author or contributor please respond to this email stating =
of whether or not you are aware of any relevant IPR. The response needs to b=
e sent to the RTGWG mailing list. The document will not advance to the next =
stage until a response has been received from each author and each individua=
l that has contributed to the document.<o:p></o:p></pre><pre style=3D'margin-l=
eft:.5in'>=C2=A0=C2=A0=C2=A0 <o:p></o:p></pre><pre style=3D'margin-left:.5in'>=C2=A0=C2=A0=C2=A0=C2=A0Chee=
rs,<o:p></o:p></pre><pre style=3D'margin-left:.5in'>=C2=A0=C2=A0=C2=A0 Jeff <o:p></o:p></p=
re><pre style=3D'margin-left:.5in'>=C2=A0=C2=A0=C2=A0=C2=A0<o:p></o:p></pre><pre style=3D'margin=
-left:.5in'>=C2=A0=C2=A0=C2=A0=C2=A0<o:p></o:p></pre><pre style=3D'margin-left:.5in'>=C2=A0=C2=A0=C2=A0=C2=A0<=
o:p></o:p></pre><pre style=3D'margin-left:.5in'>=C2=A0=C2=A0=C2=A0=C2=A0<o:p></o:p></pre><pre =
style=3D'margin-left:.5in'><o:p>&nbsp;</o:p></pre><pre style=3D'margin-left:.5in=
'><o:p>&nbsp;</o:p></pre></blockquote><p class=3DMsoNormal style=3D'margin-left:=
.5in'><br><br><o:p></o:p></p></div></body></html>

--B_3592074120_547863199--



From nobody Sun Oct 29 00:01:57 2017
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From: Christian Hopps <chopps@chopps.org>
To: Jeff Tantsura <jefftant.ietf@gmail.com>
Cc: RTGWG <rtgwg@ietf.org>, Rtg-dt-yang-arch <rtg-dt-yang-arch-bounces@ietf.org>, 'rtgwg-chairs' <rtgwg-chairs@tools.ietf.org>
Subject: Re: RTGWG WGLC draft-ietf-rtgwg-ni-model
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I am not aware of any IPR.

Thanks,
Chris (co-author).

Jeff Tantsura <jefftant.ietf@gmail.com> writes:

> Dear RTGWG,
>
> The authors have requested the RTGWG to last call draft-ietf-rtgwg-ni-model.
>
> The interdependencies related to draft-ietf-netmod-schema-mount have been addressed.
> There was consensus that document is ready for the last call during the last IETF meeting
> and the authors have addressed all the comments from Directorate QA review and YANGDOCTORS.
> Please indicate support or no-support by November 6, 2017.
>
> IPR:
> If you are listed as a document author or contributor, please respond to this
> email of whether or not you are aware of any relevant IPR.
> The response needs to be sent to the RTGWG mailing list.
> The document will not advance to the next stage until a response has been
> received from each author and each individual that has contributed to the document.
>
> Thanks,
> Jeff & Chris
>
>
>
>
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg


From nobody Sun Oct 29 00:03:07 2017
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From: Christian Hopps <chopps@chopps.org>
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Subject: Re: RTGWG WGLC draft-ietf-rtgwg-lne-model
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I am not aware of any IPR.

Thanks,
Chris (as co-author).

Jeff Tantsura <jefftant.ietf@gmail.com> writes:

> Dear RTGWG,
>
> The authors have requested the RTGWG to last call draft-ietf-rtgwg-lne-model
>
> The interdependencies related to draft-ietf-netmod-schema-mount have been addressed.
> There was consensus that document is ready for the last call during the last IETF meeting
> and the authors have addressed all the comments from Directorate QA review and YANGDOCTORS.
> Please indicate support or no-support by November 6, 2017.
>
> IPR:
> If you are listed as a document author or contributor, please respond to this
> email of whether or not you are aware of any relevant IPR.
> The response needs to be sent to the RTGWG mailing list.
> The document will not advance to the next stage until a response has been
> received from each author and each individual that has contributed to the document.
>
> Thanks,
> Jeff & Chris
>
>
>
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg


From nobody Sun Oct 29 03:17:44 2017
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From: "Ariel Gu" <gurong@chinamobile.com>
To: "'Jeff Tantsura'" <jefftant.ietf@gmail.com>, =?utf-8?B?J+mhviDmiI4n?= <gurong_cmcc@outlook.com>
Cc: <rtgwg@ietf.org>, <nfvrg@irtf.org>, <i2rs@ietf.org>, <nvo3@ietf.org>, <victor.lopezalvarez@telefonica.com>, <hushujun@chinamobile.com>, <hlisname@yahoo.com>, <ao.ting@zte.com.cn>
Subject: RE: Give the introduction of CUSP design team and Solicit comments for all the related drafts of CU-seperated BNG
Date: Sun, 29 Oct 2017 18:17:27 +0800
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Hi, Jeff.

We ask for 15 minutes time slot for the CUSP design team introduction =
and new drafts especially the requirement of protocols in CP and UP BNG =
devices in IETF100 RTGWG. We think it=E2=80=99s a meaningful work and we =
want to share ideas with others. It would be helpful for the work =
improvement if you can  give us the time.

=20

B.R.

Gu Rong

From: Jeff Tantsura [mailto:jefftant.ietf@gmail.com]=20
Time: 2017=E5=B9=B410=E6=9C=8829=E6=97=A5 11:33
To: =E9=A1=BE =E6=88=8E
CC: rtgwg@ietf.org; nfvrg@irtf.org; i2rs@ietf.org; nvo3@ietf.org; =
victor.lopezalvarez@telefonica.com; hushujun@chinamobile.com; =
hlisname@yahoo.com; ao.ting@zte.com.cn; gurong@chinamobile.com
Topic: Re: Give the introduction of CUSP design team and Solicit =
comments for all the related drafts of CU-seperated BNG

=20

Hi Rong,

=20

Are you planning to provide an update at IETF100?=20

Regards,

Jeff


On Oct 28, 2017, at 17:42, gurong <gurong_cmcc@outlook.com =
<mailto:gurong_cmcc@outlook.com> > wrote:

Hi, dear all.

Recently we have submitted several drafts on CU-separated BNG device. As =
CU-separated BNG is a bandnew architecture with a control plane (BNG-CP) =
and user plane (BNG-UP) separation. As this is new, information model =
and related protocols are under research for a long time in several =
small groups. Based on these research points, we have formed a small =
design team named CUSPDT(CU-separated-protocol design team) aiming at =
resolving protocol based problems on CU-separated BNG. Anyway, it's not =
an offical design team. And it's very shy to appear to you for the first =
time :)

The only team rules is that: Everyone is welcome to join our design team =
sharing opinions and suggestions.=20

=20

Below, I list all the related drafts while there are two new drafts =
contributed by the design team. One is the requirement of =
CU-separated-protocols and another is the deployment model of =
CU-separated BNG in the real network.

=20

Requirements of the protocols between CP and UP.

https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cusp-requirements/

CU-separated BNG device deployment model

https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cu-separation-bng-dep=
loyment/

=20

Recently, there are other related drafts submitted before the design =
team constructed.

=20

Architecture of CU-separated BNG device referring to BBF cloud co

https://datatracker.ietf.org/doc/draft-gu-nfvrg-cloud-bng-architecture/

The information model standardized in BNG information model draft

https://datatracker.ietf.org/doc/draft-wcg-i2rs-cu-separation-infor-model=
/Due to our research and trial, we have found out that there are several =
information

VXLAN-GPE extension for BNG devices

https://datatracker.ietf.org/doc/draft-huang-nvo3-vxlan-gpe-extension-for=
-vbng/

YANG datamodel for CU and UP interface

https://datatracker.ietf.org/doc/draft-hu-rtgwg-cu-separation-yang-model/=


We hope that authors from all these related drafts and others who are =
interested in this can work together though the design team CUSPDT.=20

=20

BTW. CUSPDT can be Conneted all the time. And it's Unique. We need a =
Sage like you. Let's start this work with Passion!

=20

Best regards.

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

Rong Gu
China Mobile Research Institute
No.32 Xuanwumen West Street, Xicheng District
Beijing, China, 100053
Mobile: +86 13811520541
Phone: +86 10 15801696688 Ext. 36211
Email: gurong@chinamobile.com <mailto:huanglu@chinamobile.com>=20

_______________________________________________
rtgwg mailing list
rtgwg@ietf.org <mailto:rtgwg@ietf.org>=20
https://www.ietf.org/mailman/listinfo/rtgwg


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<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DZH-CN link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D'=
>Hi, Jeff.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D'=
>We ask for 15 minutes time slot for the CUSP design team introduction =
and new drafts especially the requirement of protocols in CP and UP BNG =
devices in IETF100 RTGWG. We think it=E2=80=99s a meaningful work and we =
want to share ideas with others. It would be helpful for the work =
improvement if you can =C2=A0give us the time.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D'=
><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D'=
>B.R.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D'=
>Gu Rong<o:p></o:p></span></p><div><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91=
",sans-serif'>From:</span></b><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91=
",sans-serif'> Jeff Tantsura [mailto:jefftant.ietf@gmail.com] =
<br><b>Time:</b> 2017</span><span =
style=3D'font-size:11.0pt;font-family:"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91=
",sans-serif'>=E5=B9=B4<span lang=3DEN-US>10</span>=E6=9C=88<span =
lang=3DEN-US>29</span>=E6=97=A5<span lang=3DEN-US> 11:33<br><b>To:</b> =
</span>=E9=A1=BE =E6=88=8E<span lang=3DEN-US><br><b>CC:</b> =
rtgwg@ietf.org; nfvrg@irtf.org; i2rs@ietf.org; nvo3@ietf.org; =
victor.lopezalvarez@telefonica.com; hushujun@chinamobile.com; =
hlisname@yahoo.com; ao.ting@zte.com.cn; =
gurong@chinamobile.com<br><b>Topic:</b> Re: Give the introduction of =
CUSP design team and Solicit comments for all the related drafts of =
CU-seperated BNG<o:p></o:p></span></span></p></div></div><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US>Hi =
Rong,<o:p></o:p></span></p><div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span lang=3DEN-US>Are you planning to =
provide an update at IETF100?&nbsp;<o:p></o:p></span></p><div =
id=3DAppleMailSignature><p class=3DMsoNormal><span =
lang=3DEN-US>Regards,<o:p></o:p></span></p><div><p =
class=3DMsoNormal><span =
lang=3DEN-US>Jeff<o:p></o:p></span></p></div></div><div><p =
class=3DMsoNormal style=3D'margin-bottom:12.0pt'><span =
lang=3DEN-US><br>On Oct 28, 2017, at 17:42, <span =
style=3D'color:#1F497D'>gurong</span> &lt;<a =
href=3D"mailto:gurong_cmcc@outlook.com">gurong_cmcc@outlook.com</a>&gt; =
wrote:<o:p></o:p></span></p></div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><div =
id=3Ddivtagdefaultwrapper><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>Hi, dear =
all.<o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>Recently we have =
submitted several drafts on CU-separated BNG device.&nbsp;As =
CU-separated BNG is a bandnew architecture with&nbsp;a control plane =
(BNG-CP) and user plane (BNG-UP) separation. As this is new, information =
model and related protocols are under research for a long time in =
several small groups. Based on these research points, we have formed a =
small design team named CUSPDT(CU-separated-protocol design team) aiming =
at resolving protocol based problems on CU-separated BNG. Anyway, it's =
not an offical design team. And it's very shy to appear to you&nbsp;for =
the first time&nbsp;:)<o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>The only team =
rules&nbsp;is that: Everyone is welcome to join our design team sharing =
opinions and suggestions.&nbsp;<o:p></o:p></span></p><p><span =
lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'><o:p>&nbsp;</o:p><=
/span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>Below, I list all =
the related drafts while there are two new drafts contributed by the =
design team. One is the requirement of&nbsp;CU-separated-protocols and =
another is the deployment model of CU-separated BNG in the real =
network.<o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'><o:p>&nbsp;</o:p><=
/span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>Requirements of =
the protocols between CP and UP.<o:p></o:p></span></p><p><span =
lang=3DEN-US style=3D'font-family:"Calibri",sans-serif;color:black'><a =
href=3D"https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cusp-requirem=
ents/" =
id=3DLPlnk427798>https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cusp=
-requirements/</a><o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>CU-separated BNG =
device deployment model<o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'><a =
href=3D"https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cu-separation=
-bng-deployment/" =
id=3DLPlnk880036>https://datatracker.ietf.org/doc/draft-cuspdt-rtgwg-cu-s=
eparation-bng-deployment/</a><o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'><o:p>&nbsp;</o:p><=
/span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>Recently, there =
are other related drafts submitted before the design team =
constructed.<o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'><o:p>&nbsp;</o:p><=
/span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>Architecture =
of&nbsp;CU-separated BNG device referring to BBF cloud =
co<o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'><a =
href=3D"https://datatracker.ietf.org/doc/draft-gu-nfvrg-cloud-bng-archite=
cture/" =
id=3DLPlnk679681>https://datatracker.ietf.org/doc/draft-gu-nfvrg-cloud-bn=
g-architecture/</a><o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>The information =
model standardized in BNG information model =
draft<o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'><a =
href=3D"https://datatracker.ietf.org/doc/draft-wcg-i2rs-cu-separation-inf=
or-model/" =
id=3DLPlnk440378>https://datatracker.ietf.org/doc/draft-wcg-i2rs-cu-separ=
ation-infor-model/</a>Due to our research and trial, we have found out =
that there are several information<o:p></o:p></span></p><p><span =
lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>VXLAN-GPE =
extension for BNG devices<o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'><a =
href=3D"https://datatracker.ietf.org/doc/draft-huang-nvo3-vxlan-gpe-exten=
sion-for-vbng/" =
id=3DLPlnk480375>https://datatracker.ietf.org/doc/draft-huang-nvo3-vxlan-=
gpe-extension-for-vbng/</a><o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>YANG datamodel =
for CU and UP interface<o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'><a =
href=3D"https://datatracker.ietf.org/doc/draft-hu-rtgwg-cu-separation-yan=
g-model/" =
id=3DLPlnk949072>https://datatracker.ietf.org/doc/draft-hu-rtgwg-cu-separ=
ation-yang-model/</a><br><br>We hope that&nbsp;authors from all these =
related drafts and others who are interested in this can work together =
though the design team CUSPDT.&nbsp;<o:p></o:p></span></p><p><span =
lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'><o:p>&nbsp;</o:p><=
/span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>BTW. CUSPDT can =
be Conneted all the time. And it's Unique. We need a Sage like you. =
Let's start this work with Passion!<o:p></o:p></span></p><p><span =
lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'><o:p>&nbsp;</o:p><=
/span></p><p><span lang=3DEN-US =
style=3D'font-family:"Calibri",sans-serif;color:black'>Best =
regards.<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Verdana",sans-serif;color:black'>-=
----------------------------------------------------------</span><span =
lang=3DEN-US style=3D'color:black'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Verdana",sans-serif;color:black'>R=
ong Gu<br>China Mobile Research Institute<br>No.32 Xuanwumen West =
Street, Xicheng District<br>Beijing, China, 100053<br>Mobile: +86 =
13811520541<br>Phone: +86 10 15801696688 Ext. 36211<br>Email: =
</span><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Verdana",sans-serif;color:blue'><a=
 =
href=3D"mailto:huanglu@chinamobile.com">gurong@chinamobile.com</a></span>=
<span lang=3DEN-US =
style=3D'color:black'><o:p></o:p></span></p></div></div></blockquote><p =
class=3DMsoNormal><span =
lang=3DEN-US>_______________________________________________<br>rtgwg =
mailing list<br><a =
href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a><br><a =
href=3D"https://www.ietf.org/mailman/listinfo/rtgwg">https://www.ietf.org=
/mailman/listinfo/rtgwg</a><o:p></o:p></span></p></div></body></html>
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From: Greg Mirsky <gregimirsky@gmail.com>
Date: Sun, 29 Oct 2017 12:42:27 -0700
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Subject: Re: RTGWG presentation slot requests in Singapore
To: Jeff Tantsura <jefftant.ietf@gmail.com>
Cc: "rtgwg@ietf.org" <rtgwg@ietf.org>, rtgwg-chairs <rtgwg-chairs@tools.ietf.org>
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Dear Chris and Jeff,
would appreciate your consideration of my request to present update to BFD
for Multi-point Networks in VRRP Use Case:

draft-mirsky-bfd-p2mp-vrrp-use-case   Presenter: Greg Mirsky  Time: 10 min

Regards,
Greg

On Tue, Oct 17, 2017 at 11:26 AM, Jeff Tantsura <jefftant.ietf@gmail.com>
wrote:

> Dear RTGWG,
>
> It's that time again!
> The preliminary agenda for IETF 100 has been published; you can find it a=
t
> https://datatracker.ietf.org/meeting/100/agenda.html
>
> RTGWG will be meeting: 09:30- 12:00 on Monday, November 13 in Canning and
> 13:30-15:30 on Thursday, November 16 in Canning room.
> If you'd like a slot to present a draft, please send a request to Chris
> and I by Monday, October 30.
> Please note the dates below, in particular, the deadline for draft
> submission is UTC 23:59 October 30.
> We kindly request to provide your presentations by Monday, November 6.
>
> As always =E2=80=93 we would appreciate your help in taking notes and jab=
ber,
> please do volunteer!
>
> Looking forward to seeing you all in Singapore!
>
> Cheers,
> Jeff and Chris
>
>
>
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg
>

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<div dir=3D"ltr">Dear Chris and Jeff,<div>would appreciate your considerati=
on of my request to present update to BFD for Multi-point Networks in VRRP =
Use Case:</div><div><br></div><div>draft-mirsky-bfd-p2mp-vrrp-use-case=C2=
=A0 =C2=A0Presenter: Greg Mirsky=C2=A0 Time: 10 min</div><div><br></div><di=
v>Regards,</div><div>Greg</div></div><div class=3D"gmail_extra"><br><div cl=
ass=3D"gmail_quote">On Tue, Oct 17, 2017 at 11:26 AM, Jeff Tantsura <span d=
ir=3D"ltr">&lt;<a href=3D"mailto:jefftant.ietf@gmail.com" target=3D"_blank"=
>jefftant.ietf@gmail.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmai=
l_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left=
:1ex">Dear RTGWG,<br>
<br>
It&#39;s that time again!<br>
The preliminary agenda for IETF 100 has been published; you can find it at =
<a href=3D"https://datatracker.ietf.org/meeting/100/agenda.html" rel=3D"nor=
eferrer" target=3D"_blank">https://datatracker.ietf.org/<wbr>meeting/100/ag=
enda.html</a><br>
<br>
RTGWG will be meeting: 09:30- 12:00 on Monday, November 13 in Canning and 1=
3:30-15:30 on Thursday, November 16 in Canning room.<br>
If you&#39;d like a slot to present a draft, please send a request to Chris=
 and I by Monday, October 30.<br>
Please note the dates below, in particular, the deadline for draft submissi=
on is UTC 23:59 October 30.<br>
We kindly request to provide your presentations by Monday, November 6.<br>
<br>
As always =E2=80=93 we would appreciate your help in taking notes and jabbe=
r, please do volunteer!<br>
<br>
Looking forward to seeing you all in Singapore!<br>
<br>
Cheers,<br>
Jeff and Chris<br>
<br>
<br>
<br>
______________________________<wbr>_________________<br>
rtgwg mailing list<br>
<a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/rtgwg" rel=3D"noreferrer" =
target=3D"_blank">https://www.ietf.org/mailman/<wbr>listinfo/rtgwg</a><br>
</blockquote></div><br></div>

--94eb2c1cd2f2ccf9b8055cb4b8c3--


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Date: Sun, 29 Oct 2017 14:22:33 -0700
Subject: Re: RTGWG presentation slot requests in Singapore
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: Greg Mirsky <gregimirsky@gmail.com>
CC: "rtgwg@ietf.org" <rtgwg@ietf.org>, rtgwg-chairs <rtgwg-chairs@tools.ietf.org>
Message-ID: <E968E81B-62F5-4D81-8FE3-8006EC57E3AB@gmail.com>
Thread-Topic: RTGWG presentation slot requests in Singapore
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Hi Greg,

=20

Thanks, noted.

=20

Cheers,

Jeff

=20

From: Greg Mirsky <gregimirsky@gmail.com>
Date: Sunday, October 29, 2017 at 12:42
To: Jeff Tantsura <jefftant.ietf@gmail.com>
Cc: RTGWG <rtgwg@ietf.org>, rtgwg-chairs <rtgwg-chairs@tools.ietf.org>
Subject: Re: RTGWG presentation slot requests in Singapore

=20

Dear Chris and Jeff,

would appreciate your consideration of my request to present update to BFD =
for Multi-point Networks in VRRP Use Case:

=20

draft-mirsky-bfd-p2mp-vrrp-use-case   Presenter: Greg Mirsky  Time: 10 min

=20

Regards,

Greg

=20

On Tue, Oct 17, 2017 at 11:26 AM, Jeff Tantsura <jefftant.ietf@gmail.com> w=
rote:

Dear RTGWG,

It's that time again!
The preliminary agenda for IETF 100 has been published; you can find it at =
https://datatracker.ietf.org/meeting/100/agenda.html

RTGWG will be meeting: 09:30- 12:00 on Monday, November 13 in Canning and 1=
3:30-15:30 on Thursday, November 16 in Canning room.
If you'd like a slot to present a draft, please send a request to Chris and=
 I by Monday, October 30.
Please note the dates below, in particular, the deadline for draft submissi=
on is UTC 23:59 October 30.
We kindly request to provide your presentations by Monday, November 6.

As always =E2=80=93 we would appreciate your help in taking notes and jabber, ple=
ase do volunteer!

Looking forward to seeing you all in Singapore!

Cheers,
Jeff and Chris



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

=20


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v class=3DWordSection1><p class=3DMsoNormal><span style=3D'font-size:14.0pt'>Hi Gr=
eg,<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:14.0pt'><=
o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:14.0pt'=
>Thanks, noted.<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'font-si=
ze:14.0pt'><o:p>&nbsp;</o:p></span></p><div><p class=3DMsoNormal><span style=3D'=
font-size:10.5pt;color:black'>Cheers,<o:p></o:p></span></p></div><p class=3DMs=
oNormal><span style=3D'font-size:10.5pt;color:black'>Jeff</span><span style=3D'f=
ont-size:14.0pt'><o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'font-=
size:14.0pt'><o:p>&nbsp;</o:p></span></p><div style=3D'border:none;border-top:=
solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal style=3D'mar=
gin-left:.5in'><b><span style=3D'font-size:12.0pt;color:black'>From: </span></=
b><span style=3D'font-size:12.0pt;color:black'>Greg Mirsky &lt;gregimirsky@gma=
il.com&gt;<br><b>Date: </b>Sunday, October 29, 2017 at 12:42<br><b>To: </b>J=
eff Tantsura &lt;jefftant.ietf@gmail.com&gt;<br><b>Cc: </b>RTGWG &lt;rtgwg@i=
etf.org&gt;, rtgwg-chairs &lt;rtgwg-chairs@tools.ietf.org&gt;<br><b>Subject:=
 </b>Re: RTGWG presentation slot requests in Singapore<o:p></o:p></span></p>=
</div><div><p class=3DMsoNormal style=3D'margin-left:.5in'><o:p>&nbsp;</o:p></p>=
</div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>Dear Chris and Jeff,<=
o:p></o:p></p><div><p class=3DMsoNormal style=3D'margin-left:.5in'>would appreci=
ate your consideration of my request to present update to BFD for Multi-poin=
t Networks in VRRP Use Case:<o:p></o:p></p></div><div><p class=3DMsoNormal sty=
le=3D'margin-left:.5in'><o:p>&nbsp;</o:p></p></div><div><p class=3DMsoNormal sty=
le=3D'margin-left:.5in'>draft-mirsky-bfd-p2mp-vrrp-use-case&nbsp; &nbsp;Presen=
ter: Greg Mirsky&nbsp; Time: 10 min<o:p></o:p></p></div><div><p class=3DMsoNor=
mal style=3D'margin-left:.5in'><o:p>&nbsp;</o:p></p></div><div><p class=3DMsoNor=
mal style=3D'margin-left:.5in'>Regards,<o:p></o:p></p></div><div><p class=3DMsoN=
ormal style=3D'margin-left:.5in'>Greg<o:p></o:p></p></div></div><div><p class=3D=
MsoNormal style=3D'margin-left:.5in'><o:p>&nbsp;</o:p></p><div><p class=3DMsoNor=
mal style=3D'margin-left:.5in'>On Tue, Oct 17, 2017 at 11:26 AM, Jeff Tantsura=
 &lt;<a href=3D"mailto:jefftant.ietf@gmail.com" target=3D"_blank">jefftant.ietf@=
gmail.com</a>&gt; wrote:<o:p></o:p></p><blockquote style=3D'border:none;border=
-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin=
-right:0in'><p class=3DMsoNormal style=3D'margin-left:.5in'>Dear RTGWG,<br><br>I=
t's that time again!<br>The preliminary agenda for IETF 100 has been publish=
ed; you can find it at <a href=3D"https://datatracker.ietf.org/meeting/100/age=
nda.html" target=3D"_blank">https://datatracker.ietf.org/meeting/100/agenda.ht=
ml</a><br><br>RTGWG will be meeting: 09:30- 12:00 on Monday, November 13 in =
Canning and 13:30-15:30 on Thursday, November 16 in Canning room.<br>If you'=
d like a slot to present a draft, please send a request to Chris and I by Mo=
nday, October 30.<br>Please note the dates below, in particular, the deadlin=
e for draft submission is UTC 23:59 October 30.<br>We kindly request to prov=
ide your presentations by Monday, November 6.<br><br>As always =E2=80=93 we would =
appreciate your help in taking notes and jabber, please do volunteer!<span s=
tyle=3D'font-family:"PMingLiU",serif'><br><br></span>Looking forward to seeing=
 you all in Singapore!<span style=3D'font-family:"PMingLiU",serif'><br><br></s=
pan>Cheers,<span style=3D'font-family:"PMingLiU",serif'><br></span>Jeff and Ch=
ris<span style=3D'font-family:"PMingLiU",serif'><br><br><br><br></span>_______=
________________________________________<br>rtgwg mailing list<br><a href=3D"m=
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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 Routing Area Working Group WG of the IETF.

        Title           : Enterprise Multihoming using Provider-Assigned Addresses without Network Prefix Translation: Requirements and Solution
        Authors         : Fred Baker
                          Chris Bowers
                          Jen Linkova
	Filename        : draft-ietf-rtgwg-enterprise-pa-multihoming-02.txt
	Pages           : 47
	Date            : 2017-10-29

Abstract:
   Connecting an enterprise site to multiple ISPs using provider-
   assigned addresses is difficult without the use of some form of
   Network Address Translation (NAT).  Much has been written on this
   topic over the last 10 to 15 years, but it still remains a problem
   without a clearly defined or widely implemented solution.  Any
   multihoming solution without NAT requires hosts at the site to have
   addresses from each ISP and to select the egress ISP by selecting a
   source address for outgoing packets.  It also requires routers at the
   site to take into account those source addresses when forwarding
   packets out towards the ISPs.

   This document attempts to define a complete solution to this problem.
   It covers the behavior of routers to forward traffic taking into
   account source address, and it covers the behavior of host to select
   appropriate source addresses.  It also covers any possible role that
   routers might play in providing information to hosts to help them
   select appropriate source addresses.  In the process of exploring
   potential solutions, this documents also makes explicit requirements
   for how the solution would be expected to behave from the perspective
   of an enterprise site network administrator .


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-enterprise-pa-multihoming/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-enterprise-pa-multihoming-02
https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-enterprise-pa-multihoming-02

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-enterprise-pa-multihoming-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/


From nobody Sun Oct 29 22:01:11 2017
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From: Jen Linkova <furry13@gmail.com>
Date: Mon, 30 Oct 2017 16:00:44 +1100
Message-ID: <CAFU7BARhjsEDE10qEFFMfTbgpD5af0YoWJUh88OrsUpd412TFw@mail.gmail.com>
Subject: Re: Persistent loops when mixing rtgwg-enterprise-pa-multihoming and rtgwg-dst-src-routing
To: Chris Bowers <cbowers@juniper.net>
Cc: Matthieu Boutier <boutier@irif.fr>, Anton Smirnov <as@cisco.com>, "rtgwg@ietf.org" <rtgwg@ietf.org>, Jen Linkova <furry@google.com>
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On Fri, Jul 28, 2017 at 3:55 AM, Chris Bowers <cbowers@juniper.net> wrote:
> With the proposed generalization of rule #3, together with a clarificatio=
n that the source-prefix-scoped
> forwarding table should be chosen based on longest source prefix match wi=
th the source address of the packet,
> I think we are in agreement that the forwarding behavior described in rtg=
wg-enterprise-pa-multihoming
> Is identical to that described in rtgwg-dst-src-routing.

I've just submitted -02 version of
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-enterprise-pa-multihoming=
/
which addresses this persistent loop issue.

(The rule #3 is made more generic and mentions  "less specific -> more
specific source prefix" entries propagation.
The next-hop selection rule is now looks the following way:

"The forward tables produced by this process are used in the following
way to forward packets.

1) Select the most specific (longest prefix match)
source-prefix-scoped forwarding table that matches the source address
of the packet (again, the unscoped forwarding table is considered to
be scoped to ::/0).
2) Look up the destination address of the packet in the selected
forwarding table to determine the next-hop for the packet.
"

I've also updated the example in the section 3 so the unscoped table
is now considered to be scoped to ::/0.

Maybe we need to update the examples in include the case of one table
being scoped to /48 and another one to be scoped to /32...

> -----Original Message-----
> From: Matthieu Boutier [mailto:boutier@irif.fr]
> Sent: Thursday, July 27, 2017 11:41 AM
> To: Chris Bowers <cbowers@juniper.net>
> Cc: David Lamparter <equinox@diac24.net>; rtgwg@ietf.org; Anton Smirnov <=
as@cisco.com>; Jen Linkova <furry@google.com>
> Subject: Re: Persistent loops when mixing rtgwg-enterprise-pa-multihoming=
 and rtgwg-dst-src-routing
>
> Hi,
>
>> Does this generalization of rule #3 resolve the discrepancy ?
>
> It's not enough, because if you have overlapping source prefix, you'll ne=
ed to change the following.
>
>    1.  If the source address of the packet matches one of the source
>        prefixes, then look up the destination address of the packet in
>        the corresponding source-prefix-scoped forwarding table to
>        determine the next-hop for the packet.
>
>    2.  If the source address of the packet does NOT match one of the
>        source prefixes, then look up the destination address of the
>        packet in unscoped forwarding table to determine the next-hop for
>        the packet.
>
> Basically, you'll have to replace these two points by only one saying:
> "order your entries by prefix specificity (longest match first)".
>
> And=E2=80=A6 I have the feeling that the routing part is overcomplicated.=
  It should be as simple as: "put a SADR routing protocol on your network".
> And you're done.
>
> The draft discusses a lot about how to progressively deploy SADR in the n=
etwork.  This should be put in a "progressive deployment" section, which wo=
uld essentially say:
>
>   - have a connected SADR backbone including the edge routers,
>
>   - announce a default route from the backbone to attract packets.
>
> It's the role of the routing protocol to be backward compatible with the =
legacy (non-SADR) version.
>
> Also, about routing tables, section 3 clearly shows that if a packet matc=
hes two routes, it should follow the one with the most specific destination=
.  All the section 3 is about what to do if we don't have native destinatio=
n-first SADR tables but only policy routing.  I believe it's the role of th=
e routing protocol's implementation to deal with that (that's what we do si=
nce 2013).  Then section 3 could probably just be a reference to David's dr=
aft, since it only concerns SADR/dst-src/source-specific/etc. routing proto=
col implementations.
>
> Matthieu
>
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg



--=20
SY, Jen Linkova aka Furry


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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 Routing Area Working Group WG of the IETF.

        Title           : LFA selection for Multi-Homed Prefixes
        Authors         : Pushpasis Sarkar
                          Shraddha Hegde
                          Chris Bowers
                          Uma Chunduri
                          Jeff Tantsura
                          Bruno Decraene
                          Hannes Gredler
	Filename        : draft-ietf-rtgwg-multihomed-prefix-lfa-03.txt
	Pages           : 17
	Date            : 2017-10-30

Abstract:
   This document shares experience gained from implementing algorithms
   to determine Loop-Free Alternates for multi-homed prefixes.  In
   particular, this document provides explicit inequalities that can be
   used to evaluate neighbors as a potential alternates for multi-homed
   prefixes.  It also provides detailed criteria for evaluating
   potential alternates for external prefixes advertised by OSPF ASBRs.
   This documents updates and expands some of the "Routing Aspects" as
   specified in Section 6 of [RFC5286].



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-multihomed-prefix-lfa/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-multihomed-prefix-lfa-03
https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-multihomed-prefix-lfa-03

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-multihomed-prefix-lfa-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.

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From nobody Mon Oct 30 13:01:09 2017
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Subject: I-D Action: draft-ietf-rtgwg-dst-src-routing-06.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Routing Area Working Group WG of the IETF.

        Title           : Destination/Source Routing
        Authors         : David Lamparter
                          Anton Smirnov
	Filename        : draft-ietf-rtgwg-dst-src-routing-06.txt
	Pages           : 21
	Date            : 2017-10-30

Abstract:
   This note specifies using packets' source addresses in route lookups
   as additional qualifier to be used in hop-by-hop routing decisions.
   This applies to IPv6 [RFC2460] in general with specific
   considerations for routing protocol left for separate documents.
   There is nothing precluding similar operation in IPv4, but this is
   not in scope of this document.

   Note that destination/source routing, source/destination routing,
   SADR, source-specific routing, source-sensitive routing, S/D routing
   and D/S routing are all used synonymously.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-dst-src-routing/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-dst-src-routing-06
https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-dst-src-routing-06

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-dst-src-routing-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 Mon Oct 30 15:26:00 2017
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Subject: Re: I-D Action: draft-ietf-rtgwg-dst-src-routing-06.txt
To: draft-ietf-rtgwg-dst-src-routing@ietf.org, rtgwg@ietf.org
References: <150939366833.7831.6538202571946834662@ietfa.amsl.com>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Hi,

>    Both IPv4 [RFC0791] and IPv6 [RFC2460] architectures specify that
>    determination of the outgoing next-hop for packet forwarding is based
>    solely on the destination address contained in the packet header.

1) RFC8200 obsoleted RFC2460 recently.

2) I can't find any statement in RFC8200 to justify "solely". In fact,
as far as I can see the document says nothing about the destination address
except that it's "the address of the intended recipient".

https://tools.ietf.org/html/draft-ietf-v6ops-ipv6rtr-reqs-00#section-2.4
is quite explicit that source-address-based routing is allowed.

I'm not sure that RFC791 justifies the "solely" either. There's only one
very oblique statement, hidden in the discussion of loose source routes
("the routing is to be based on the destination address field"). If
there's any such restriction for IPv4, it must be hidden in RFC1812.
I couldn't find it, though.

It's fair to say that in practice, we have based forwarding solely
on the destination address. But I don't believe it's specified.

(Apart from that, I'm all for the draft, fwiw.)

Regards
   Brian


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Date: Mon, 30 Oct 2017 16:39:06 -0700
Subject: DC Routing requirements draft
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: Dcrouting <dcrouting-bounces@ietf.org>
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All,

We have just published DC Routing requirements draft (draft-dt-rtgwg-dcrouting-requirements) that is going to be presented at the upcoming BoF in Singapore.
Please note that EDCO group (draft-elkins-routing-brickmortar-topology) input was not included and will have a separate track.

Your comments and suggestions are very welcome.

draft co-authors


