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From: Shraddha Hegde <shraddha@juniper.net>
To: Joel Halpern <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>
CC: "ospf@ietf.org" <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
Thread-Topic: Genart telechat review of draft-ietf-ospf-link-overload-10
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Date: Tue, 2 Jan 2018 04:51:19 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/RSBEWXqCyCRwPwFReNtnT8Qt6YY>
Subject: Re: [OSPF] Genart telechat review of draft-ietf-ospf-link-overload-10
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From: Shraddha Hegde <shraddha@juniper.net>
To: Martin Vigoureux <martin.vigoureux@nokia.com>, "rtg-ads@ietf.org" <rtg-ads@ietf.org>
CC: "rtg-dir@ietf.org" <rtg-dir@ietf.org>, "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: RtgDir review: draft-ietf-ospf-link-overload-9
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/YgdoP9q3kRx-1Od2ObUJCkRMWA4>
Subject: Re: [OSPF] RtgDir review: draft-ietf-ospf-link-overload-9
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From nobody Mon Jan  1 23:57:41 2018
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Date: Mon, 01 Jan 2018 23:57:36 -0800
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Subject: [OSPF] I-D Action: draft-ietf-ospf-link-overload-11.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 Open Shortest Path First IGP WG of the IETF.

        Title           : OSPF Link Overload
        Authors         : Shraddha Hegde
                          Pushpasis Sarkar
                          Hannes Gredler
                          Mohan Nanduri
                          Luay Jalil
	Filename        : draft-ietf-ospf-link-overload-11.txt
	Pages           : 16
	Date            : 2018-01-01

Abstract:
   When a link is being prepared to be taken out of service, the traffic
   needs to be diverted from both ends of the link.  Increasing the
   metric to the highest metric on one side of the link is not
   sufficient to divert the traffic flowing in the other direction.

   It is useful for routers in an OSPFv2 or OSPFv3 routing domain to be
   able to advertise a link as being in an overload state to indicate
   impending maintenance activity on the link.  This information can be
   used by the network devices to re-route the traffic effectively.

   This document describes the protocol extensions to disseminate link-
   overload information in OSPFv2 and OSPFv3.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-link-overload/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-link-overload-11
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-link-overload-11

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-link-overload-11


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

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


From nobody Tue Jan  2 08:15:42 2018
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CC: draft-ietf-ospf-link-overload@ietf.org, akatlas@gmail.com, ospf@ietf.org,  Acee Lindem <acee@cisco.com>, acee@cisco.com, ospf-chairs@ietf.org
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Date: Tue, 02 Jan 2018 08:15:35 -0800
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Subject: [OSPF] Last Call: <draft-ietf-ospf-link-overload-11.txt> (OSPF Link Overload) to Proposed Standard
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The IESG has received a request from the Open Shortest Path First IGP WG
(ospf) to consider the following document: - 'OSPF Link Overload'
  <draft-ietf-ospf-link-overload-11.txt> as Proposed Standard

The IESG plans to make a decision in the next few weeks, and solicits final
comments on this action. Please send substantive comments to the
ietf@ietf.org mailing lists by 2018-01-16. Exceptionally, comments may be
sent to iesg@ietf.org instead. In either case, please retain the beginning of
the Subject line to allow automated sorting.

Abstract


   When a link is being prepared to be taken out of service, the traffic
   needs to be diverted from both ends of the link.  Increasing the
   metric to the highest metric on one side of the link is not
   sufficient to divert the traffic flowing in the other direction.

   It is useful for routers in an OSPFv2 or OSPFv3 routing domain to be
   able to advertise a link as being in an overload state to indicate
   impending maintenance activity on the link.  This information can be
   used by the network devices to re-route the traffic effectively.

   This document describes the protocol extensions to disseminate link-
   overload information in OSPFv2 and OSPFv3.





The file can be obtained via
https://datatracker.ietf.org/doc/draft-ietf-ospf-link-overload/

IESG discussion can be tracked via
https://datatracker.ietf.org/doc/draft-ietf-ospf-link-overload/ballot/

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

   https://datatracker.ietf.org/ipr/2577/






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Subject: [OSPF] Fwd: New Version Notification for draft-li-dynamic-flooding-00.txt
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FYI...

> Begin forwarded message:
>=20
> From: internet-drafts@ietf.org
> Subject: New Version Notification for draft-li-dynamic-flooding-00.txt
> Date: January 3, 2018 at 9:17:29 AM PST
> To: "Tony Li" <tony.li@tony.li>
>=20
>=20
> A new version of I-D, draft-li-dynamic-flooding-00.txt
> has been successfully submitted by Tony Li and posted to the
> IETF repository.
>=20
> Name:		draft-li-dynamic-flooding
> Revision:	00
> Title:		An Architecture for Dynamic Flooding on Dense =
Graphs
> Document date:	2018-01-02
> Group:		Individual Submission
> Pages:		8
> URL:            =
https://www.ietf.org/internet-drafts/draft-li-dynamic-flooding-00.txt
> Status:         =
https://datatracker.ietf.org/doc/draft-li-dynamic-flooding/
> Htmlized:       =
https://tools.ietf.org/html/draft-li-dynamic-flooding-00
> Htmlized:       =
https://datatracker.ietf.org/doc/html/draft-li-dynamic-flooding-00
>=20
>=20
> Abstract:
>   Routing with link state protocols in dense network topologies can
>   result in suboptimal convergence times due to the overhead =
associated
>   with flooding.  This can be addressed by decreasing the flooding
>   topology so that it is less dense.
>=20
>   This document discusses the problem in some depth and an
>   architectural solution.  Specific protocol changes are not described
>   in this document.
>=20
>=20
>=20
>=20
> Please note that it may take a couple of minutes from the time of =
submission
> until the htmlized version and diff are available at tools.ietf.org.
>=20
> The IETF Secretariat
>=20


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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><div class=3D""><br class=3D""></div>FYI...<br =
class=3D""><div><br class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D"">Begin forwarded message:</div><br =
class=3D"Apple-interchange-newline"><div style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=3D""><span=
 style=3D"font-family: -webkit-system-font, Helvetica Neue, Helvetica, =
sans-serif; color:rgba(0, 0, 0, 1.0);" class=3D""><b class=3D"">From: =
</b></span><span style=3D"font-family: -webkit-system-font, Helvetica =
Neue, Helvetica, sans-serif;" class=3D""><a =
href=3D"mailto:internet-drafts@ietf.org" =
class=3D"">internet-drafts@ietf.org</a><br class=3D""></span></div><div =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px;" class=3D""><span style=3D"font-family: =
-webkit-system-font, Helvetica Neue, Helvetica, sans-serif; =
color:rgba(0, 0, 0, 1.0);" class=3D""><b class=3D"">Subject: =
</b></span><span style=3D"font-family: -webkit-system-font, Helvetica =
Neue, Helvetica, sans-serif;" class=3D""><b class=3D"">New Version =
Notification for draft-li-dynamic-flooding-00.txt</b><br =
class=3D""></span></div><div style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px;" class=3D""><span =
style=3D"font-family: -webkit-system-font, Helvetica Neue, Helvetica, =
sans-serif; color:rgba(0, 0, 0, 1.0);" class=3D""><b class=3D"">Date: =
</b></span><span style=3D"font-family: -webkit-system-font, Helvetica =
Neue, Helvetica, sans-serif;" class=3D"">January 3, 2018 at 9:17:29 AM =
PST<br class=3D""></span></div><div style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=3D""><span=
 style=3D"font-family: -webkit-system-font, Helvetica Neue, Helvetica, =
sans-serif; color:rgba(0, 0, 0, 1.0);" class=3D""><b class=3D"">To: =
</b></span><span style=3D"font-family: -webkit-system-font, Helvetica =
Neue, Helvetica, sans-serif;" class=3D"">"Tony Li" &lt;<a =
href=3D"mailto:tony.li@tony.li" class=3D"">tony.li@tony.li</a>&gt;<br =
class=3D""></span></div><br class=3D""><div class=3D""><div class=3D""><br=
 class=3D"">A new version of I-D, draft-li-dynamic-flooding-00.txt<br =
class=3D"">has been successfully submitted by Tony Li and posted to =
the<br class=3D"">IETF repository.<br class=3D""><br class=3D"">Name:<span=
 class=3D"Apple-tab-span" style=3D"white-space:pre">	</span><span =
class=3D"Apple-tab-span" style=3D"white-space:pre">	=
</span>draft-li-dynamic-flooding<br class=3D"">Revision:<span =
class=3D"Apple-tab-span" style=3D"white-space:pre">	</span>00<br =
class=3D"">Title:<span class=3D"Apple-tab-span" style=3D"white-space:pre">=
	</span><span class=3D"Apple-tab-span" style=3D"white-space:pre">	=
</span>An Architecture for Dynamic Flooding on Dense Graphs<br =
class=3D"">Document date:<span class=3D"Apple-tab-span" =
style=3D"white-space:pre">	</span>2018-01-02<br =
class=3D"">Group:<span class=3D"Apple-tab-span" style=3D"white-space:pre">=
	</span><span class=3D"Apple-tab-span" style=3D"white-space:pre">	=
</span>Individual Submission<br class=3D"">Pages:<span =
class=3D"Apple-tab-span" style=3D"white-space:pre">	</span><span =
class=3D"Apple-tab-span" style=3D"white-space:pre">	</span>8<br =
class=3D"">URL: =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a =
href=3D"https://www.ietf.org/internet-drafts/draft-li-dynamic-flooding-00.=
txt" =
class=3D"">https://www.ietf.org/internet-drafts/draft-li-dynamic-flooding-=
00.txt</a><br class=3D"">Status: =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a =
href=3D"https://datatracker.ietf.org/doc/draft-li-dynamic-flooding/" =
class=3D"">https://datatracker.ietf.org/doc/draft-li-dynamic-flooding/</a>=
<br class=3D"">Htmlized: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a =
href=3D"https://tools.ietf.org/html/draft-li-dynamic-flooding-00" =
class=3D"">https://tools.ietf.org/html/draft-li-dynamic-flooding-00</a><br=
 class=3D"">Htmlized: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a =
href=3D"https://datatracker.ietf.org/doc/html/draft-li-dynamic-flooding-00=
" =
class=3D"">https://datatracker.ietf.org/doc/html/draft-li-dynamic-flooding=
-00</a><br class=3D""><br class=3D""><br class=3D"">Abstract:<br =
class=3D""> &nbsp;&nbsp;Routing with link state protocols in dense =
network topologies can<br class=3D""> &nbsp;&nbsp;result in suboptimal =
convergence times due to the overhead associated<br class=3D""> =
&nbsp;&nbsp;with flooding. &nbsp;This can be addressed by decreasing the =
flooding<br class=3D""> &nbsp;&nbsp;topology so that it is less =
dense.<br class=3D""><br class=3D""> &nbsp;&nbsp;This document discusses =
the problem in some depth and an<br class=3D""> =
&nbsp;&nbsp;architectural solution. &nbsp;Specific protocol changes are =
not described<br class=3D""> &nbsp;&nbsp;in this document.<br =
class=3D""><br class=3D""><br class=3D""><br class=3D""><br =
class=3D"">Please note that it may take a couple of minutes from the =
time of submission<br class=3D"">until the htmlized version and diff are =
available at <a href=3D"http://tools.ietf.org" =
class=3D"">tools.ietf.org</a>.<br class=3D""><br class=3D"">The IETF =
Secretariat<br class=3D""><br =
class=3D""></div></div></blockquote></div><br class=3D""></body></html>=

--Apple-Mail=_F863C3B1-C4BB-403A-BDCA-1A004F556085--


From nobody Wed Jan  3 17:57:01 2018
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Subject: [OSPF] I-D Action: draft-ietf-ospf-mpls-elc-05.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Open Shortest Path First IGP WG of the IETF.

        Title           : Signaling Entropy Label Capability and Readable Label-stack Depth Using OSPF
        Authors         : Xiaohu Xu
                          Sriganesh Kini
                          Siva Sivabalan
                          Clarence Filsfils
                          Stephane Litkowski
	Filename        : draft-ietf-ospf-mpls-elc-05.txt
	Pages           : 6
	Date            : 2018-01-03

Abstract:
   Multiprotocol Label Switching (MPLS) has defined a mechanism to load
   balance traffic flows using Entropy Labels (EL).  An ingress Label
   Switching Router (LSR) cannot insert ELs for packets going into a
   given tunnel unless an egress LSR has indicated via signaling that it
   has the capability of processing ELs, referred to as Entropy Label
   Capability (ELC), on that tunnel.  In addition, it would be useful
   for ingress LSRs to know each LSR's capability of reading the maximum
   label stack depth, referred to as Readable Label-stack Depth (RLD),
   in the cases where stacked LSPs are used for whatever reasons.  This
   document defines mechanisms to signal these two capabilities using
   OSPF.  These mechanisms are useful when the label advertisement is
   also done via OSPF.  In addition, this document introduces the Router
   Non-OSPF Functional Capabilities TLV for advertising OSPF router's
   actual non-OSPF functional capabilities.  ELC is one of such non-OSPF
   functional capabilities.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-mpls-elc/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-mpls-elc-05
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-mpls-elc-05

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-mpls-elc-05


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

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


From nobody Thu Jan  4 15:32:06 2018
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From: Joel Halpern <jmh@joelhalpern.com>
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Cc: ospf@ietf.org, ietf@ietf.org, draft-ietf-ospf-link-overload.all@ietf.org
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Subject: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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Reviewer: Joel Halpern
Review result: Ready

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.

For more information, please see the FAQ at

<https://trac.ietf.org/trac/gen/wiki/GenArtfaq>.

Document: draft-ietf-ospf-link-overload-11
Reviewer: Joel Halpern
Review Date: 2018-01-04
IETF LC End Date: 2018-01-16
IESG Telechat date: 2018-01-25

Summary: This document is ready for publication as a Proposed Standard

Major issues:
    N/A; my concerns from earlier versions have been addressed.

Minor issues:
    I understand the WG likes using the term "overload" for a link being taken
    out of service.  I think people will learn what we mean.  I do wish we had
    not chosen to misuse the words in this fashion.  This is much more a
    graceful-link-close indication (or clsoe-pending indication) than it is an
    overload indication.

Nits/editorial comments:



From nobody Thu Jan  4 16:23:41 2018
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From nobody Thu Jan  4 17:44:51 2018
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From: Sean Turner <sean@sn3rd.com>
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Subject: [OSPF] Secdir telechat review of draft-ietf-ospf-link-overload-11
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Reviewer: Sean Turner
Review result: Ready

In reviewing this draft, I was most concerned that this mechanism could be used
by an attacker to push traffic towards or away from a node.  If the messages
are authenticated then I tend to agree with your assessment that this draft
doesn't introduce any new security considerations beyond those in
[RFC2328]/[RFC5340].  If not, well all bets are off.

I did note a couple of editorial nits, but I sent those directly to the authors.


From nobody Thu Jan  4 18:26:59 2018
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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: "Acee Lindem (acee)" <acee@cisco.com>, Joel Halpern <jmh@joelhalpern.com>,  "gen-art@ietf.org" <gen-art@ietf.org>
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Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, Joel Halpern <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>
CC: "ospf@ietf.org" <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
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Date: Fri, 5 Jan 2018 02:44:07 +0000
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Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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From: "Ketan Talaulikar (ketant)" <ketant@cisco.com>
To: "Acee Lindem (acee)" <acee@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, Joel Halpern <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>
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Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
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Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: "Acee Lindem (acee)" <acee@cisco.com>, Joel Halpern <jmh@joelhalpern.com>,  "gen-art@ietf.org" <gen-art@ietf.org>
CC: "ospf@ietf.org" <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
Thread-Index: AQHThbuRS0E8Ymcr2kaVACNqyw2GeaNkihcwgABtI4D//72SEA==
Date: Fri, 5 Jan 2018 04:55:47 +0000
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Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: "Ketan Talaulikar (ketant)" <ketant@cisco.com>, "Acee Lindem (acee)" <acee@cisco.com>, Joel Halpern <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>
CC: "ospf@ietf.org" <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
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Date: Fri, 5 Jan 2018 04:56:42 +0000
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Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Ketan Talaulikar (ketant)" <ketant@cisco.com>, Joel Halpern <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>
CC: "ospf@ietf.org" <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
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Date: Fri, 5 Jan 2018 13:19:49 +0000
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References: <151510872060.14779.1209340587073567227@ietfa.amsl.com> <D6742D72.E86AC%acee@cisco.com> <bc44e16c2bf94d34a92d10c3f64ae07e@XCH-ALN-001.cisco.com> <D6745005.E86F2%acee@cisco.com> <07098d41e11849d9a320061bb68aec0f@XCH-ALN-008.cisco.com> <cbdc429805b64c87a4f66cb3da1a49d2@XCH-ALN-001.cisco.com>
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Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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From: Shraddha Hegde <shraddha@juniper.net>
To: "Acee Lindem (acee)" <acee@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Ketan Talaulikar (ketant)" <ketant@cisco.com>, "Joel Halpern" <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>
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Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
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Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Shraddha Hegde <shraddha@juniper.net>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Ketan Talaulikar (ketant)" <ketant@cisco.com>, "Joel Halpern" <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>
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Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
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Date: Fri, 5 Jan 2018 16:46:39 +0000
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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: "Acee Lindem (acee)" <acee@cisco.com>, Shraddha Hegde <shraddha@juniper.net>, "Ketan Talaulikar (ketant)" <ketant@cisco.com>, "Joel Halpern" <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>
CC: "ospf@ietf.org" <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
Thread-Index: AQHThbuRS0E8Ymcr2kaVACNqyw2GeaNkihcwgABtI4CAABezAP//qI7AgADxXICAADD8AIAACM6A//+ryHA=
Date: Fri, 5 Jan 2018 17:52:03 +0000
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Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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From: <bruno.decraene@orange.com>
To: Shraddha Hegde <shraddha@juniper.net>, "Acee Lindem (acee)" <acee@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Ketan Talaulikar (ketant)" <ketant@cisco.com>, Joel Halpern <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>
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Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
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From: Pushpasis Sarkar <pushpasis.ietf@gmail.com>
Date: Mon, 8 Jan 2018 22:52:26 +0530
Message-ID: <CAEFuwkiy1Rdnba3jyEcYq_43Xyutm9S4mQHpuGe2UnHE11Twbw@mail.gmail.com>
To: Bruno Decraene <bruno.decraene@orange.com>
Cc: Shraddha Hegde <shraddha@juniper.net>, "Acee Lindem (acee)" <acee@cisco.com>,  "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Ketan Talaulikar (ketant)" <ketant@cisco.com>,  Joel Halpern <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>,  "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/cJcyl0KO-SagMye66GEsdXw-Pr4>
Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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Hi Joel et al,

+1 for 'graceful-link-shutdown'. Another possibility may be
'link-decommission'..

Thanks and regards
-Pushpasis

On Mon, Jan 8, 2018 at 7:09 PM, <bruno.decraene@orange.com> wrote:

>
>
>
>
> *From:* Shraddha Hegde
>
> How about =E2=80=9Cgraceful-link-shutdown=E2=80=9D ?
>
>
>
> Looks good to me.
>
> Also, FYI, for BGP sessions, in the GROW WG we used the term =E2=80=9CGra=
ceful BGP session shutdown=E2=80=9D and named the BGP community =E2=80=9CGR=
ACEFUL_SHUTDOWN=E2=80=9D so this would align on the terminology.
>
> https://tools.ietf.org/html/draft-ietf-grow-bgp-gshut-13
>
>
>
> Best regards,
>
> --Bruno
>
>
>
>
>
> Rgds
>
> Shraddha
>
>
>
>
>
>
>
> *From:* Acee Lindem (acee) [mailto:acee@cisco.com <acee@cisco.com>]
> *Sent:* Friday, January 5, 2018 6:50 PM
> *To:* Les Ginsberg (ginsberg) <ginsberg@cisco.com>; Ketan Talaulikar
> (ketant) <ketant@cisco.com>; Joel Halpern <jmh@joelhalpern.com>;
> gen-art@ietf.org
> *Cc:* ospf@ietf.org; ietf@ietf.org; draft-ietf-ospf-link-overload.
> all@ietf.org
> *Subject:* Re: Genart last call review of draft-ietf-ospf-link-overload-1=
1
>
>
>
> It is not in =E2=80=9Cmaintenance" mode yet as it is still being used. Ho=
wever, it
> is better than =E2=80=9Coverload=E2=80=9D. =E2=80=9Cpending-maintenance=
=E2=80=9D is a bit long which is why
> I suggested =E2=80=9Cpending-shutdown=E2=80=9D since =E2=80=9Cshutdown=E2=
=80=9D is term that vendors have
> used for eons to described an interface that is not in service.
>
> Thanks,
>
> Acee
>
>
>
> *From: *"Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
> *Date: *Thursday, January 4, 2018 at 11:56 PM
> *To: *"Ketan Talaulikar (ketant)" <ketant@cisco.com>, Acee Lindem <
> acee@cisco.com>, "Joel M. Halpern" <jmh@joelhalpern.com>, "
> gen-art@ietf.org" <gen-art@ietf.org>
> *Cc: *OSPF WG List <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "
> draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-
> overload.all@ietf.org>
> *Subject: *RE: Genart last call review of draft-ietf-ospf-link-overload-1=
1
>
>
>
> Ketan =E2=80=93
>
>
>
> =E2=80=9Cmaintenance=E2=80=9D I could live with.
>
>
>
> =E2=80=9CGIR=E2=80=9D seems to not be generic enough.
>
>
>
>    Les
>
>
>
>
>
> *From:* Ketan Talaulikar (ketant)
> *Sent:* Thursday, January 04, 2018 8:09 PM
> *To:* Acee Lindem (acee) <acee@cisco.com>; Les Ginsberg (ginsberg) <
> ginsberg@cisco.com>; Joel Halpern <jmh@joelhalpern.com>; gen-art@ietf.org
> *Cc:* ospf@ietf.org; ietf@ietf.org; draft-ietf-ospf-link-overload.
> all@ietf.org
> *Subject:* RE: Genart last call review of draft-ietf-ospf-link-overload-1=
1
>
>
>
> Hello,
>
>
>
> May I suggest something more generic like =E2=80=9CMaintenance Mode=E2=80=
=9D or =E2=80=9CGraceful
> Insertion/Removal (GIR) Mode=E2=80=9D which could be defined so as to cov=
er the
> multiple scenarios in question (e.g. pending shutdown, down for repairs,
> last resort due to poor link quality, etc.).
>
>
>
> Thanks,
>
> Ketan
>
>
>
> *From:* OSPF [mailto:ospf-bounces@ietf.org <ospf-bounces@ietf.org>] *On
> Behalf Of *Acee Lindem (acee)
> *Sent:* 05 January 2018 08:14
> *To:* Les Ginsberg (ginsberg) <ginsberg@cisco.com>; Joel Halpern <
> jmh@joelhalpern.com>; gen-art@ietf.org
> *Cc:* ospf@ietf.org; ietf@ietf.org; draft-ietf-ospf-link-overload.
> all@ietf.org
> *Subject:* Re: [OSPF] Genart last call review of
> draft-ietf-ospf-link-overload-11
>
>
>
> Hi Les,
>
>
>
> *From: *"Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
> *Date: *Thursday, January 4, 2018 at 9:26 PM
> *To: *Acee Lindem <acee@cisco.com>, "Joel M. Halpern" <jmh@joelhalpern.co=
m>,
> "gen-art@ietf.org" <gen-art@ietf.org>
> *Cc: *OSPF WG List <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "
> draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-
> overload.all@ietf.org>
> *Subject: *RE: Genart last call review of draft-ietf-ospf-link-overload-1=
1
>
>
>
> > >Minor issues:
>
> > >    I understand the WG likes using the term "overload" for a link
>
> > >being taken
>
> > >    out of service.  I think people will learn what we mean.  I do wis=
h
>
> > >we had
>
> > >    not chosen to misuse the words in this fashion.  This is much more=
 a
>
> > >    graceful-link-close indication (or clsoe-pending indication) than
>
> > >it is an
>
> > >    overload indication.
>
> >
>
> > I agree with this comment but I wasn=E2=80=99t sure we=E2=80=99d reach =
consensus on a
>
> > better alternative. However, after some though and consideration of
> current
>
> > OSPF router terminology, I=E2=80=99d propose we use the term =E2=80=9CP=
ending-Shutdown=E2=80=9D.
>
> > Does anyone not agree that this is a more appropriate moniker for the T=
LV
>
> > and state?
>
> >
>
> [Les:] I agree with Joel's comment. The use of the term "overload" is
> unfortunate.
>
> But "pending-shutdown" isn=E2=80=99t appealing to me because - at least i=
n most
> use cases - you aren't actually going to shutdown the link. What you are
> going to do is make a link the "link of last resort".
>
> This seems a better choice.
>
>
>
> That is not the use case - you are going to take the link down. It is not
> going to be the "link of last resort=E2=80=9D, it is the currently the =
=E2=80=9Clink of
> last resort=E2=80=9D and will imminently be taken down.
>
>
>
>
>
> The suggestion from Shraddha that this term was borrowed from IS-IS isn't
> accurate. "overload" in IS-IS has a very different meaning - it indicates=
 a
> node either has an incomplete LSDB or (a la RFC 3277
> <https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__datatracker.ietf.=
org_doc_rfc3277_&d=3DDwMGaQ&c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI=
&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&m=3D7GM8zN1-Ff2au_agmHAkiN=
YK2R5Aji-EjpyT8gmgRYU&s=3D769ndBiWrwubwBNccNtOnDuHr1yMD-W10WuEarCDNgI&e=3D>
> )an incomplete forwarding plane.
>
>
>
> The only use of "link overload" in IS-IS occurs in
> https://tools.ietf.org/html/draft-ietf-isis-reverse-metric-07#section-3.6
> <https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.ietf.org_ht=
ml_draft-2Dietf-2Disis-2Dreverse-2Dmetric-2D07-23section-2D3.6&d=3DDwMGaQ&c=
=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DNyjLsr7JA7mvpCJa0YmPdVKc=
mMXJ31bpbBaNqzCNrng&m=3D7GM8zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU&s=3Dr_8=
muG61-ePlkCbqf7qIcHUPHGtjWf_JOH1UXH7lp8U&e=3D>
> and this was added recently to support the (very useful) TE use case whic=
h
> was defined in https://tools.ietf.org/html/draft-ietf-ospf-link-overload-
> 11
> <https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.ietf.org_ht=
ml_draft-2Dietf-2Dospf-2Dlink-2Doverload-2D11&d=3DDwMGaQ&c=3DHAkYuh63rsuhr6=
Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNr=
ng&m=3D7GM8zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU&s=3DumZHmgXp6i4i0PAyZbsD=
S0iorBurDZsFIyvaVVXEHb0&e=3D>
> . When this was done the term "link-overload" was cut and pasted from the
> OSPF draft. I think this should also be changed in the IS-IS draft.
>
>
>
> Agreed.
>
>
>
> Thanks,
>
> Acee
>
>
>
>    Les
>
>
>
> > Thanks,
>
> > Acee
>
> > >
>
> > >
>
> > >
>
> >
>
> > _______________________________________________
>
> > OSPF mailing list
>
> > OSPF@ietf.org
>
> > https://www.ietf.org/mailman/listinfo/ospf
> <https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.ietf.org_mail=
man_listinfo_ospf&d=3DDwMGaQ&c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoC=
I&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&m=3D7GM8zN1-Ff2au_agmHAki=
NYK2R5Aji-EjpyT8gmgRYU&s=3DN51dsQzqzgGoBY61VJtqkgGHlrNjgZT_-9g8G_pcOyE&e=3D=
>
>
> _________________________________________________________________________=
________________________________________________
>
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electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme o=
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--001a1145e576c9475f0562470ad0
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi Joel et al,<div><br></div><div>+1 for &#39;graceful-lin=
k-shutdown&#39;. Another possibility may be &#39;link-decommission&#39;..=
=C2=A0<div><br></div><div>Thanks and regards</div><div>-Pushpasis</div></di=
v></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Mon, J=
an 8, 2018 at 7:09 PM,  <span dir=3D"ltr">&lt;<a href=3D"mailto:bruno.decra=
ene@orange.com" target=3D"_blank">bruno.decraene@orange.com</a>&gt;</span> =
wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bord=
er-left:1px #ccc solid;padding-left:1ex">





<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div class=3D"m_-6849180046638241106WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Ar=
ial&quot;,&quot;sans-serif&quot;;color:black"><u></u>=C2=A0<u></u></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Ar=
ial&quot;,&quot;sans-serif&quot;;color:black"><u></u>=C2=A0<u></u></span></=
p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:10.0pt;fo=
nt-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span =
lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&qu=
ot;sans-serif&quot;"> Shraddha Hegde<br>
<br>
</span><span lang=3D"EN-US"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">How abo=
ut =E2=80=9Cgraceful-link-shutdown=E2=80=9D ?<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black"><u></u>=
=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Looks good to =
me.<u></u><u></u></span></p>
<pre><span lang=3D"EN-US" style=3D"font-family:&quot;Arial&quot;,&quot;sans=
-serif&quot;;color:black">Also, FYI, for BGP sessions, in the GROW WG we us=
ed the term =E2=80=9CGraceful BGP session shutdown=E2=80=9D and named the B=
GP community =E2=80=9C</span><span lang=3D"EN-US">GRACEFUL_SHUTDOWN</span><=
span lang=3D"EN-US" style=3D"font-family:&quot;Arial&quot;,&quot;sans-serif=
&quot;;color:black">=E2=80=9D so this would align on the terminology.<u></u=
><u></u></span></pre>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><a href=3D"htt=
ps://tools.ietf.org/html/draft-ietf-grow-bgp-gshut-13" target=3D"_blank">ht=
tps://tools.ietf.org/html/<wbr>draft-ietf-grow-bgp-gshut-13</a><u></u><u></=
u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><u></u>=C2=A0<=
u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Best regards,<=
u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">--Bruno<u></u>=
<u></u></span></p><div><div class=3D"h5">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><u></u>=C2=A0<=
u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><u></u>=C2=A0<=
u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">Rgds<u>=
</u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">Shraddh=
a<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d"><u></u>=
=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d"><u></u>=
=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d"><u></u>=
=C2=A0<u></u></span></p>
<div>
<div style=3D"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> Acee Lindem (acee) [<a href=3D"mailto:acee@cisco.com" target=3D=
"_blank">mailto:acee@cisco.com</a>]
<br>
<b>Sent:</b> Friday, January 5, 2018 6:50 PM<br>
<b>To:</b> Les Ginsberg (ginsberg) &lt;<a href=3D"mailto:ginsberg@cisco.com=
" target=3D"_blank">ginsberg@cisco.com</a>&gt;; Ketan Talaulikar (ketant) &=
lt;<a href=3D"mailto:ketant@cisco.com" target=3D"_blank">ketant@cisco.com</=
a>&gt;; Joel Halpern &lt;<a href=3D"mailto:jmh@joelhalpern.com" target=3D"_=
blank">jmh@joelhalpern.com</a>&gt;;
<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org</a><=
br>
<b>Cc:</b> <a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf@ietf.org=
</a>; <a href=3D"mailto:ietf@ietf.org" target=3D"_blank">
ietf@ietf.org</a>; <a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf=
.org" target=3D"_blank">draft-ietf-ospf-link-overload.<wbr>all@ietf.org</a>=
<br>
<b>Subject:</b> Re: Genart last call review of draft-ietf-ospf-link-overloa=
d-<wbr>11<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:black">It is not in =E2=80=9Cmaintenance&quot; mode yet as it is still bei=
ng used. However, it is better than =E2=80=9Coverload=E2=80=9D. =E2=80=9Cpe=
nding-maintenance=E2=80=9D is a bit long which is why I suggested =E2=80=9C=
pending-shutdown=E2=80=9D
 since =E2=80=9Cshutdown=E2=80=9D is term that vendors have used for eons t=
o described an interface that is not in service.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:black">Thanks,<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:black">Acee=C2=A0<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:black"><u></u>=C2=A0<u></u></span></p>
</div>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"color:black">From: =
</span></b><span lang=3D"EN-US" style=3D"color:black">&quot;Les Ginsberg (g=
insberg)&quot; &lt;<a href=3D"mailto:ginsberg@cisco.com" target=3D"_blank">=
ginsberg@cisco.com</a>&gt;<br>
<b>Date: </b>Thursday, January 4, 2018 at 11:56 PM<br>
<b>To: </b>&quot;Ketan Talaulikar (ketant)&quot; &lt;<a href=3D"mailto:keta=
nt@cisco.com" target=3D"_blank">ketant@cisco.com</a>&gt;, Acee Lindem &lt;<=
a href=3D"mailto:acee@cisco.com" target=3D"_blank">acee@cisco.com</a>&gt;, =
&quot;Joel M. Halpern&quot; &lt;<a href=3D"mailto:jmh@joelhalpern.com" targ=
et=3D"_blank">jmh@joelhalpern.com</a>&gt;, &quot;<a href=3D"mailto:gen-art@=
ietf.org" target=3D"_blank">gen-art@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org=
</a>&gt;<br>
<b>Cc: </b>OSPF WG List &lt;<a href=3D"mailto:ospf@ietf.org" target=3D"_bla=
nk">ospf@ietf.org</a>&gt;, &quot;<a href=3D"mailto:ietf@ietf.org" target=3D=
"_blank">ietf@ietf.org</a>&quot; &lt;<a href=3D"mailto:ietf@ietf.org" targe=
t=3D"_blank">ietf@ietf.org</a>&gt;, &quot;<a href=3D"mailto:draft-ietf-ospf=
-link-overload.all@ietf.org" target=3D"_blank">draft-ietf-ospf-link-<wbr>ov=
erload.all@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf.org" target=
=3D"_blank">draft-ietf-ospf-link-<wbr>overload.all@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: Genart last call review of draft-ietf-ospf-link-overloa=
d-<wbr>11<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:black"><u></u>=C2=A0<u></u></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #b5c4df 4.5pt;padding:0c=
m 0cm 0cm 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin=
-bottom:5.0pt" id=3D"m_-6849180046638241106MAC_OUTLOOK_ATTRIBUTION_BLOCKQUO=
TE">
<div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">Ketan =
=E2=80=93</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=E2=80=
=9Cmaintenance=E2=80=9D I could live with.</span><span lang=3D"EN-US" style=
=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=E2=80=
=9CGIR=E2=80=9D seems to not be generic enough.</span><span lang=3D"EN-US" =
style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=C2=A0=
=C2=A0 Les</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"color:black">From:<=
/span></b><span lang=3D"EN-US" style=3D"color:black"> Ketan Talaulikar (ket=
ant)
<br>
<b>Sent:</b> Thursday, January 04, 2018 8:09 PM<br>
<b>To:</b> Acee Lindem (acee) &lt;<a href=3D"mailto:acee@cisco.com" target=
=3D"_blank">acee@cisco.com</a>&gt;; Les Ginsberg (ginsberg) &lt;<a href=3D"=
mailto:ginsberg@cisco.com" target=3D"_blank">ginsberg@cisco.com</a>&gt;; Jo=
el Halpern &lt;<a href=3D"mailto:jmh@joelhalpern.com" target=3D"_blank">jmh=
@joelhalpern.com</a>&gt;;
<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org</a><=
br>
<b>Cc:</b> <a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf@ietf.org=
</a>; <a href=3D"mailto:ietf@ietf.org" target=3D"_blank">
ietf@ietf.org</a>; <a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf=
.org" target=3D"_blank">draft-ietf-ospf-link-overload.<wbr>all@ietf.org</a>=
<br>
<b>Subject:</b> RE: Genart last call review of draft-ietf-ospf-link-overloa=
d-<wbr>11<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">=C2=A0<u>=
</u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">Hello,<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">May I s=
uggest something more generic like =E2=80=9CMaintenance Mode=E2=80=9D or =
=E2=80=9CGraceful Insertion/Removal (GIR) Mode=E2=80=9D which could be defi=
ned so as to cover the multiple scenarios in question (e.g. pending shutdow=
n,
 down for repairs, last resort due to poor link quality, etc.).</span><span=
 lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">Thanks,=
</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">Ketan</=
span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<div>
<div style=3D"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"color:black">From:<=
/span></b><span lang=3D"EN-US" style=3D"color:black"> OSPF [<a href=3D"mail=
to:ospf-bounces@ietf.org" target=3D"_blank">mailto:ospf-bounces@ietf.org</a=
>]
<b>On Behalf Of </b>Acee Lindem (acee)<br>
<b>Sent:</b> 05 January 2018 08:14<br>
<b>To:</b> Les Ginsberg (ginsberg) &lt;<a href=3D"mailto:ginsberg@cisco.com=
" target=3D"_blank">ginsberg@cisco.com</a>&gt;; Joel Halpern &lt;<a href=3D=
"mailto:jmh@joelhalpern.com" target=3D"_blank">jmh@joelhalpern.com</a>&gt;;
<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org</a><=
br>
<b>Cc:</b> <a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf@ietf.org=
</a>; <a href=3D"mailto:ietf@ietf.org" target=3D"_blank">
ietf@ietf.org</a>; <a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf=
.org" target=3D"_blank">draft-ietf-ospf-link-overload.<wbr>all@ietf.org</a>=
<br>
<b>Subject:</b> Re: [OSPF] Genart last call review of draft-ietf-ospf-link-=
overload-<wbr>11<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:black">=C2=A0</s=
pan><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">Hi Les,=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u><=
/u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u><=
/u></span></p>
</div>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-IN" style=3D"color:black">From: =
</span></b><span lang=3D"EN-IN" style=3D"color:black">&quot;Les Ginsberg (g=
insberg)&quot; &lt;<a href=3D"mailto:ginsberg@cisco.com" target=3D"_blank">=
ginsberg@cisco.com</a>&gt;<br>
<b>Date: </b>Thursday, January 4, 2018 at 9:26 PM<br>
<b>To: </b>Acee Lindem &lt;<a href=3D"mailto:acee@cisco.com" target=3D"_bla=
nk">acee@cisco.com</a>&gt;, &quot;Joel M. Halpern&quot; &lt;<a href=3D"mail=
to:jmh@joelhalpern.com" target=3D"_blank">jmh@joelhalpern.com</a>&gt;, &quo=
t;<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org</a=
>&quot; &lt;<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@i=
etf.org</a>&gt;<br>
<b>Cc: </b>OSPF WG List &lt;<a href=3D"mailto:ospf@ietf.org" target=3D"_bla=
nk">ospf@ietf.org</a>&gt;, &quot;<a href=3D"mailto:ietf@ietf.org" target=3D=
"_blank">ietf@ietf.org</a>&quot; &lt;<a href=3D"mailto:ietf@ietf.org" targe=
t=3D"_blank">ietf@ietf.org</a>&gt;, &quot;<a href=3D"mailto:draft-ietf-ospf=
-link-overload.all@ietf.org" target=3D"_blank">draft-ietf-ospf-link-<wbr>ov=
erload.all@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf.org" target=
=3D"_blank">draft-ietf-ospf-link-<wbr>overload.all@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: Genart last call review of draft-ietf-ospf-link-overloa=
d-<wbr>11</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u><=
/u></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #b5c4df 4.5pt;padding:0c=
m 0cm 0cm 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin=
-bottom:5.0pt" id=3D"m_-6849180046638241106MAC_OUTLOOK_ATTRIBUTION_BLOCKQUO=
TE">
<div>
<div>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; &gt;Minor issues:<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; &gt;=C2=A0=C2=A0=C2=A0 I understand the WG likes usin=
g the term &quot;overload&quot; for a link<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; &gt;being taken<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; &gt;=C2=A0=C2=A0=C2=A0 out of service.=C2=A0 I think =
people will learn what we mean.=C2=A0 I do wish<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; &gt;we had<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; &gt;=C2=A0=C2=A0=C2=A0 not chosen to misuse the words=
 in this fashion.=C2=A0 This is much more a<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; &gt;=C2=A0=C2=A0=C2=A0 graceful-link-close indication=
 (or clsoe-pending indication) than<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; &gt;it is an<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; &gt;=C2=A0=C2=A0=C2=A0 overload indication.<u></u><u>=
</u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; <u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; I agree with this comment but I wasn=E2=80=99t sure w=
e=E2=80=99d reach consensus on a<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; better alternative. However, after some though and co=
nsideration of current<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; OSPF router terminology, I=E2=80=99d propose we use t=
he term =E2=80=9CPending-Shutdown=E2=80=9D.<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; Does anyone not agree that this is a more appropriate=
 moniker for the TLV<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; and state?<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt;=C2=A0<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">[Les:] I agree with Joel&#39;s comment. The use of the ter=
m &quot;overload&quot; is unfortunate.<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">But &quot;pending-shutdown&quot; isn=E2=80=99t appealing t=
o me because - at least in most use cases - you aren&#39;t actually going t=
o shutdown the link. What you are going to do is make a link the &quot;link=
 of last resort&quot;.
<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">This seems a better choice.<u></u><u></u></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">That is not the use case - you are going to take the link down. It =
is not going to be the &quot;link of last resort=E2=80=9D, it is the curren=
tly the =E2=80=9Clink of last resort=E2=80=9D and will imminently be
 taken down.=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u>=
<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u><=
/u></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #b5c4df 4.5pt;padding:0c=
m 0cm 0cm 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin=
-bottom:5.0pt" id=3D"m_-6849180046638241106MAC_OUTLOOK_ATTRIBUTION_BLOCKQUO=
TE">
<div>
<div>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">=C2=A0<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">The suggestion from Shraddha that this term was borrowed f=
rom IS-IS isn&#39;t accurate. &quot;overload&quot; in IS-IS has a very diff=
erent meaning - it indicates a node either has an incomplete LSDB or (a la
<a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__datatrack=
er.ietf.org_doc_rfc3277_&amp;d=3DDwMGaQ&amp;c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK=
-ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&amp;m=
=3D7GM8zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU&amp;s=3D769ndBiWrwubwBNccNtO=
nDuHr1yMD-W10WuEarCDNgI&amp;e=3D" target=3D"_blank">
RFC 3277</a> )an incomplete forwarding plane.<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">=C2=A0<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">The only use of &quot;link overload&quot; in IS-IS occurs =
in
<a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.iet=
f.org_html_draft-2Dietf-2Disis-2Dreverse-2Dmetric-2D07-23section-2D3.6&amp;=
d=3DDwMGaQ&amp;c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DNyjL=
sr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&amp;m=3D7GM8zN1-Ff2au_agmHAkiNYK2R5=
Aji-EjpyT8gmgRYU&amp;s=3Dr_8muG61-ePlkCbqf7qIcHUPHGtjWf_JOH1UXH7lp8U&amp;e=
=3D" target=3D"_blank">
https://tools.ietf.org/html/<wbr>draft-ietf-isis-reverse-<wbr>metric-07#sec=
tion-3.6</a> and this was added recently to support the (very useful) TE us=
e case which was defined in
<a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.iet=
f.org_html_draft-2Dietf-2Dospf-2Dlink-2Doverload-2D11&amp;d=3DDwMGaQ&amp;c=
=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvpCJa0YmP=
dVKcmMXJ31bpbBaNqzCNrng&amp;m=3D7GM8zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU=
&amp;s=3DumZHmgXp6i4i0PAyZbsDS0iorBurDZsFIyvaVVXEHb0&amp;e=3D" target=3D"_b=
lank">
https://tools.ietf.org/html/<wbr>draft-ietf-ospf-link-overload-<wbr>11</a> =
. When this was done the term &quot;link-overload&quot; was cut and pasted =
from the OSPF draft. I think this should also be changed in the IS-IS draft=
.<u></u><u></u></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">Agreed.=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u><=
/u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">Thanks,</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u>=
</u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">Acee=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u>=
<u></u></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #b5c4df 4.5pt;padding:0c=
m 0cm 0cm 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin=
-bottom:5.0pt" id=3D"m_-6849180046638241106MAC_OUTLOOK_ATTRIBUTION_BLOCKQUO=
TE">
<div>
<div>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">=C2=A0<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">=C2=A0=C2=A0 Les<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">=C2=A0<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; Thanks,<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; Acee<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; &gt;<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; &gt;<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; &gt;<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; <u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; ______________________________<wbr>_________________<=
u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; OSPF mailing list<u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; <a href=3D"mailto:OSPF@ietf.org" target=3D"_blank">
<span style=3D"color:windowtext;text-decoration:none">OSPF@ietf.org</span><=
/a><u></u><u></u></span></p>
<p class=3D"m_-6849180046638241106MsoPlainText"><span lang=3D"EN-US" style=
=3D"color:black">&gt; <a href=3D"https://urldefense.proofpoint.com/v2/url?u=
=3Dhttps-3A__www.ietf.org_mailman_listinfo_ospf&amp;d=3DDwMGaQ&amp;c=3DHAkY=
uh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMX=
J31bpbBaNqzCNrng&amp;m=3D7GM8zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU&amp;s=
=3DN51dsQzqzgGoBY61VJtqkgGHlrNjgZT_-9g8G_pcOyE&amp;e=3D" target=3D"_blank">
<span style=3D"color:windowtext;text-decoration:none">https://www.ietf.org/=
mailman/<wbr>listinfo/ospf</span></a><u></u><u></u></span></p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
</div></div></div>
</div>
<pre>______________________________<wbr>______________________________<wbr>=
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</pre></div>

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

--001a1145e576c9475f0562470ad0--


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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: Pushpasis Sarkar <pushpasis.ietf@gmail.com>, Bruno Decraene <bruno.decraene@orange.com>
CC: Shraddha Hegde <shraddha@juniper.net>, "Acee Lindem (acee)" <acee@cisco.com>, "Ketan Talaulikar (ketant)" <ketant@cisco.com>, "Joel Halpern" <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
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Date: Mon, 8 Jan 2018 18:00:41 +0000
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Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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Date: Mon, 08 Jan 2018 11:07:19 -0800
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Subject: [OSPF] Opsdir last call review of draft-ietf-ospf-ospfv3-lsa-extend-20
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Reviewer: Mehmet Ersue
Review result: Ready

I reviewed the document "OSPFv3 LSA Extendibility"
(draft-ietf-ospf-ospfv3-lsa-extend-20.txt) as part of the Operational
directorate's ongoing effort to review all IETF documents being processed by
the IESG. These comments were written primarily for the benefit of the
operational area directors.  Document editors and WG chairs should treat these
comments just like any other last call comments.

Intended status: Standards Track
Current IESG state: In Last Call (ends 2018-01-11)
IANA State: IANA - Review Needed
Updates RFC 5340 (OSPF for IPv6) and RFC 5838 (Support of Address Families in
OSPFv3)

Summary:
The document extends the Link State Advertisement (LSA) format by encoding the
existing OSPFv3 LSA information in Type-Length-Value (TLV) tuples and allowing
advertisement of additional information with additional TLVs.  The document
provides backward compatibility mechanisms.

There are no relevant nits in the document.

I believe the document does not cause any issues related to operations and
management. It has a clear language and looks ready for publication.

Mehmet



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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Ladislav Lhotka <lhotka@nic.cz>, "yang-doctors@ietf.org" <yang-doctors@ietf.org>
CC: "draft-ietf-ospf-yang.all@ietf.org" <draft-ietf-ospf-yang.all@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: Yangdoctors last call review of draft-ietf-ospf-yang-09
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Date: Mon, 8 Jan 2018 19:28:53 +0000
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Subject: Re: [OSPF] Yangdoctors last call review of draft-ietf-ospf-yang-09
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Mehmet Ersue <mersue@gmail.com>, "ops-dir@ietf.org" <ops-dir@ietf.org>
CC: "ospf@ietf.org" <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-ospf-ospfv3-lsa-extend.all@ietf.org" <draft-ietf-ospf-ospfv3-lsa-extend.all@ietf.org>
Thread-Topic: Opsdir last call review of draft-ietf-ospf-ospfv3-lsa-extend-20
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Date: Mon, 8 Jan 2018 21:22:19 +0000
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From nobody Mon Jan  8 23:51:52 2018
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From: Ladislav Lhotka <lhotka@nic.cz>
To: "Acee Lindem (acee)" <acee@cisco.com>, "yang-doctors@ietf.org" <yang-doctors@ietf.org>
Cc: "draft-ietf-ospf-yang.all@ietf.org" <draft-ietf-ospf-yang.all@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>
Date: Tue, 09 Jan 2018 08:51:35 +0100
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Subject: Re: [OSPF] Yangdoctors last call review of draft-ietf-ospf-yang-09
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Hi Acee,

please see inline.

On Mon, 2018-01-08 at 19:28 +0000, Acee Lindem (acee) wrote:
> Hi Lada,
> 
> Apologies for the delay. We somewhat got hung up on 4 and 6. See inline.
> 
> On 12/6/17, 6:26 AM, "Ladislav Lhotka" <lhotka@nic.cz> wrote:
> 
> > Reviewer: Ladislav Lhotka
> > Review result: Ready with Issues

...

> > 
> > 3. Maybe the draft could mention that implementations should supply a
> >   default routing domain as a system-controlled resource.
> 
> Isn’t this more of an RFC8022BIS statement? I guess we could state this as
> an assumption.

Probably, but it is not a YANG issue, so I'd leave it to you routing folks to
decide.

>  
> 
> > 4. In "when" expressions, the module uses literal strings for
> >   identities. This is known to be problematic, the XPath functions
> >   derived-from() or derived-from-or-self() should be used instead.
> 
> Why is this problematic? Is it because the types can be extended?

That's one reason: derived identities should often also satisfy the constraint.

But the more serious problem is that things like

    when "../../../../../../../rt:type = 'ospf:ospfv3'"

rely on plain string comparison that depends od the actual prefix used for the
"rt:type" value. For one, according to RFC 7951 the JSON encoding of this value
would be "ietf-ospf:ospfv3" so the above expression is always false. 

> > 
> > 6. The types of LSA headers are modelled as integers. While OSPF gurus
> >   probably know these numbers by heart, it is not very
> >   reader-frienly. So at least some references to documents defining
> >   these numbers should be provided, but my suggestion is to consider
> >   implementing them with identities. It seems it might also be useful
> >   to define some "abstract" identities for these types. For example,
> >   if "opaque-lsa" is defined, then the definition of container
> >   "opaque" could simply use
> > 
> >     when "derived-from(../../header/type, 'ospf:opaque-lsa')";
> > 
> >   instead of
> > 
> >      when "../../header/type = 9 or "
> >              + "../../header/type = 10 or "
> >              + "../../header/type = 11";
> 
> I guess I don’t see the identities as always being better. We will
> consider this one.

In what situations could the numbers be better?

...

Thanks, Lada

-- 
Ladislav Lhotka
Head, CZ.NIC Labs
PGP Key ID: 0xB8F92B08A9F76C67


From nobody Tue Jan  9 00:08:40 2018
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To: Martin Bjorklund <mbj@tail-f.com>
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Subject: Re: [OSPF] [yang-doctors] Yangdoctors last call review of draft-ietf-ospf-yang-09
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On Tue, 2018-01-09 at 09:06 +0100, Martin Bjorklund wrote:
> Hi,
> 
> Ladislav Lhotka <lhotka@nic.cz> wrote:
> > Hi Acee,
> 
> > 
> 
> > please see inline.
> 
> > 
> 
> > On Mon, 2018-01-08 at 19:28 +0000, Acee Lindem (acee) wrote:
> 
> > > Hi Lada,
> 
> > > 
> 
> > > Apologies for the delay. We somewhat got hung up on 4 and 6. See inline.
> 
> > > 
> 
> > > On 12/6/17, 6:26 AM, "Ladislav Lhotka" <lhotka@nic.cz> wrote:
> 
> > > 
> 
> > > > Reviewer: Ladislav Lhotka
> 
> > > > Review result: Ready with Issues
> 
> > 
> 
> > ...
> 
> > 
> 
> > > > 
> 
> > > > 3. Maybe the draft could mention that implementations should supply a
> 
> > > >   default routing domain as a system-controlled resource.
> 
> > > 
> 
> > > Isn’t this more of an RFC8022BIS statement? I guess we could state this as
> 
> > > an assumption.
> 
> > 
> 
> > Probably, but it is not a YANG issue, so I'd leave it to you routing folks
> to
> 
> > decide.
> 
> > 
> 
> > >  
> 
> > > 
> 
> > > > 4. In "when" expressions, the module uses literal strings for
> 
> > > >   identities. This is known to be problematic, the XPath functions
> 
> > > >   derived-from() or derived-from-or-self() should be used instead.
> 
> > > 
> 
> > > Why is this problematic? Is it because the types can be extended?
> 
> > 
> 
> > That's one reason: derived identities should often also satisfy the
> constraint.
> 
> > 
> 
> > But the more serious problem is that things like
> 
> > 
> 
> >     when "../../../../../../../rt:type = 'ospf:ospfv3'"
> 
> > 
> 
> > rely on plain string comparison that depends od the actual prefix used for
> the
> 
> > "rt:type" value. For one, according to RFC 7951 the JSON encoding of this
> value
> 
> > would be "ietf-ospf:ospfv3" so the above expression is always false. 
> 
> 
> This is not correct; the when expression is not evaluated on the JSON
> encoding.  See the last paragraph of section 9.10.3 in RFC 7950:
> 
>    The string value of a node of type "identityref" in a "must" or
>    "when" XPath expression is the referred identity's qualified name
>    with the prefix present.  If the referred identity is defined in an
>    imported module, the prefix in the string value is the prefix defined
>    in the corresponding "import" statement.  Otherwise, the prefix in
>    the string value is the prefix for the current module.

This is weird, to say the least. The leafref instance may have an identity value
that is defined in a module that (has to be implemented by the server but)
needn't be imported in the module that contains the XPath expression. So I don't
know what 'corresponding "import" statement' this paragraph is talking about.

Also, potentially there can be a collision in prefixes and then this also breaks
down.

A moral of the namespace/prefix story in XML was that relying of namespace
prefixes having a particular value is a really bad idea. I know that the cited
paragraph was intended to make such XPath string comparisons more deterministic,
but it is also problematic and should be avoided if possible. 

Lada

> 
> So the equality test of the identityref is correct.
> 
> However, I agree that in most cases 'derived-from-or-self' should be
> used, in order to handle derived identities.
> 
> 
> /martin
-- 
Ladislav Lhotka
Head, CZ.NIC Labs
PGP Key ID: 0xB8F92B08A9F76C67


From nobody Tue Jan  9 07:23:13 2018
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From: Ladislav Lhotka <lhotka@nic.cz>
To: Martin Bjorklund <mbj@tail-f.com>
Cc: yang-doctors@ietf.org, ietf@ietf.org, ospf@ietf.org,  draft-ietf-ospf-yang.all@ietf.org
Date: Tue, 09 Jan 2018 16:23:03 +0100
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Subject: Re: [OSPF] [yang-doctors] Yangdoctors last call review of draft-ietf-ospf-yang-09
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On Tue, 2018-01-09 at 16:08 +0100, Ladislav Lhotka wrote:
> On Tue, 2018-01-09 at 09:06 +0100, Martin Bjorklund wrote:
> > Hi,
> > 
> > Ladislav Lhotka <lhotka@nic.cz> wrote:
> > > Hi Acee,
> > > 
> > > please see inline.
> > > 
> > > On Mon, 2018-01-08 at 19:28 +0000, Acee Lindem (acee) wrote:
> > > > Hi Lada,
> > > > 
> > > > Apologies for the delay. We somewhat got hung up on 4 and 6. See inline.
> > > > 
> > > > On 12/6/17, 6:26 AM, "Ladislav Lhotka" <lhotka@nic.cz> wrote:
> > > > 
> > > > > Reviewer: Ladislav Lhotka
> > > > > Review result: Ready with Issues
> > > 
> > > ...
> > > 
> > > > > 
> > > > > 3. Maybe the draft could mention that implementations should supply a
> > > > >   default routing domain as a system-controlled resource.
> > > > 
> > > > Isn’t this more of an RFC8022BIS statement? I guess we could state this
> > > > as
> > > > an assumption.
> > > 
> > > Probably, but it is not a YANG issue, so I'd leave it to you routing folks
> > 
> > to
> > 
> > > decide.
> > > 
> > > >  
> > > > 
> > > > > 4. In "when" expressions, the module uses literal strings for
> > > > >   identities. This is known to be problematic, the XPath functions
> > > > >   derived-from() or derived-from-or-self() should be used instead.
> > > > 
> > > > Why is this problematic? Is it because the types can be extended?
> > > 
> > > That's one reason: derived identities should often also satisfy the
> > 
> > constraint.
> > 
> > > 
> > > But the more serious problem is that things like
> > > 
> > >     when "../../../../../../../rt:type = 'ospf:ospfv3'"
> > > 
> > > rely on plain string comparison that depends od the actual prefix used for
> > 
> > the
> > 
> > > "rt:type" value. For one, according to RFC 7951 the JSON encoding of this
> > 
> > value
> > 
> > > would be "ietf-ospf:ospfv3" so the above expression is always false. 
> > 
> > 
> > This is not correct; the when expression is not evaluated on the JSON
> > encoding.  See the last paragraph of section 9.10.3 in RFC 7950:
> > 
> >    The string value of a node of type "identityref" in a "must" or
> >    "when" XPath expression is the referred identity's qualified name
> >    with the prefix present.  If the referred identity is defined in an
> >    imported module, the prefix in the string value is the prefix defined
> >    in the corresponding "import" statement.  Otherwise, the prefix in
> >    the string value is the prefix for the current module.
> 
> This is weird, to say the least. The leafref instance may have an identity 

Sorry, I meant "identityref" here --------^

Lada

> value
> that is defined in a module that (has to be implemented by the server but)
> needn't be imported in the module that contains the XPath expression. So I
> don't
> know what 'corresponding "import" statement' this paragraph is talking about.
> 
> Also, potentially there can be a collision in prefixes and then this also
> breaks
> down.
> 
> A moral of the namespace/prefix story in XML was that relying of namespace
> prefixes having a particular value is a really bad idea. I know that the cited
> paragraph was intended to make such XPath string comparisons more
> deterministic,
> but it is also problematic and should be avoided if possible. 
> 
> Lada
> 
> > 
> > So the equality test of the identityref is correct.
> > 
> > However, I agree that in most cases 'derived-from-or-self' should be
> > used, in order to handle derived identities.
> > 
> > 
> > /martin
-- 
Ladislav Lhotka
Head, CZ.NIC Labs
PGP Key ID: 0xB8F92B08A9F76C67


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To: lhotka@nic.cz
Cc: acee@cisco.com, yang-doctors@ietf.org, draft-ietf-ospf-yang.all@ietf.org, ietf@ietf.org, ospf@ietf.org
From: Martin Bjorklund <mbj@tail-f.com>
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References: <1515484295.18448.9.camel@nic.cz> <20180109.090648.1082913423972100343.mbj@tail-f.com> <1515510536.26845.18.camel@nic.cz>
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Subject: Re: [OSPF] [yang-doctors] Yangdoctors last call review of draft-ietf-ospf-yang-09
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Pushpasis Sarkar <pushpasis.ietf@gmail.com>, Bruno Decraene <bruno.decraene@orange.com>
CC: Shraddha Hegde <shraddha@juniper.net>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Ketan Talaulikar (ketant)" <ketant@cisco.com>, "Joel Halpern" <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
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Date: Tue, 9 Jan 2018 15:59:50 +0000
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References: <151510872060.14779.1209340587073567227@ietfa.amsl.com> <D6742D72.E86AC%acee@cisco.com> <bc44e16c2bf94d34a92d10c3f64ae07e@XCH-ALN-001.cisco.com> <D6745005.E86F2%acee@cisco.com> <07098d41e11849d9a320061bb68aec0f@XCH-ALN-008.cisco.com> <cbdc429805b64c87a4f66cb3da1a49d2@XCH-ALN-001.cisco.com> <D674E4F9.E87E8%acee@cisco.com> <BN3PR05MB27061E9F6515017EF94E10DCD51C0@BN3PR05MB2706.namprd05.prod.outlook.com> <26758_1515418771_5A537493_26758_190_1_53C29892C857584299CBF5D05346208A4793F82A@OPEXCLILM21.corporate.adroot.infra.ftgroup> <CAEFuwkiy1Rdnba3jyEcYq_43Xyutm9S4mQHpuGe2UnHE11Twbw@mail.gmail.com>
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Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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From: Ladislav Lhotka <lhotka@nic.cz>
To: Martin Bjorklund <mbj@tail-f.com>
Cc: acee@cisco.com, yang-doctors@ietf.org, draft-ietf-ospf-yang.all@ietf.org,  ietf@ietf.org, ospf@ietf.org
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Subject: Re: [OSPF] [yang-doctors] Yangdoctors last call review of draft-ietf-ospf-yang-09
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On Tue, 2018-01-09 at 16:23 +0100, Martin Bjorklund wrote:
> Ladislav Lhotka <lhotka@nic.cz> wrote:
> > On Tue, 2018-01-09 at 09:06 +0100, Martin Bjorklund wrote:
> 
> > > Hi,
> 
> > > 
> 
> > > Ladislav Lhotka <lhotka@nic.cz> wrote:
> 
> > > > Hi Acee,
> 
> > > 
> 
> > > > 
> 
> > > 
> 
> > > > please see inline.
> 
> > > 
> 
> > > > 
> 
> > > 
> 
> > > > On Mon, 2018-01-08 at 19:28 +0000, Acee Lindem (acee) wrote:
> 
> > > 
> 
> > > > > Hi Lada,
> 
> > > 
> 
> > > > > 
> 
> > > 
> 
> > > > > Apologies for the delay. We somewhat got hung up on 4 and 6. See
> inline.
> 
> > > 
> 
> > > > > 
> 
> > > 
> 
> > > > > On 12/6/17, 6:26 AM, "Ladislav Lhotka" <lhotka@nic.cz> wrote:
> 
> > > 
> 
> > > > > 
> 
> > > 
> 
> > > > > > Reviewer: Ladislav Lhotka
> 
> > > 
> 
> > > > > > Review result: Ready with Issues
> 
> > > 
> 
> > > > 
> 
> > > 
> 
> > > > ...
> 
> > > 
> 
> > > > 
> 
> > > 
> 
> > > > > > 
> 
> > > 
> 
> > > > > > 3. Maybe the draft could mention that implementations should supply
> a
> 
> > > 
> 
> > > > > >   default routing domain as a system-controlled resource.
> 
> > > 
> 
> > > > > 
> 
> > > 
> 
> > > > > Isn’t this more of an RFC8022BIS statement? I guess we could state
> this as
> 
> > > 
> 
> > > > > an assumption.
> 
> > > 
> 
> > > > 
> 
> > > 
> 
> > > > Probably, but it is not a YANG issue, so I'd leave it to you routing
> folks
> 
> > > to
> 
> > > 
> 
> > > > decide.
> 
> > > 
> 
> > > > 
> 
> > > 
> 
> > > > >  
> 
> > > 
> 
> > > > > 
> 
> > > 
> 
> > > > > > 4. In "when" expressions, the module uses literal strings for
> 
> > > 
> 
> > > > > >   identities. This is known to be problematic, the XPath functions
> 
> > > 
> 
> > > > > >   derived-from() or derived-from-or-self() should be used instead.
> 
> > > 
> 
> > > > > 
> 
> > > 
> 
> > > > > Why is this problematic? Is it because the types can be extended?
> 
> > > 
> 
> > > > 
> 
> > > 
> 
> > > > That's one reason: derived identities should often also satisfy the
> 
> > > constraint.
> 
> > > 
> 
> > > > 
> 
> > > 
> 
> > > > But the more serious problem is that things like
> 
> > > 
> 
> > > > 
> 
> > > 
> 
> > > >     when "../../../../../../../rt:type = 'ospf:ospfv3'"
> 
> > > 
> 
> > > > 
> 
> > > 
> 
> > > > rely on plain string comparison that depends od the actual prefix used
> for
> 
> > > the
> 
> > > 
> 
> > > > "rt:type" value. For one, according to RFC 7951 the JSON encoding of
> this
> 
> > > value
> 
> > > 
> 
> > > > would be "ietf-ospf:ospfv3" so the above expression is always false. 
> 
> > > 
> 
> > > 
> 
> > > This is not correct; the when expression is not evaluated on the JSON
> 
> > > encoding.  See the last paragraph of section 9.10.3 in RFC 7950:
> 
> > > 
> 
> > >    The string value of a node of type "identityref" in a "must" or
> 
> > >    "when" XPath expression is the referred identity's qualified name
> 
> > >    with the prefix present.  If the referred identity is defined in an
> 
> > >    imported module, the prefix in the string value is the prefix defined
> 
> > >    in the corresponding "import" statement.  Otherwise, the prefix in
> 
> > >    the string value is the prefix for the current module.
> 
> > 
> 
> > This is weird, to say the least. The leafref instance may have an identity
> value
> 
> > that is defined in a module that (has to be implemented by the server but)
> 
> > needn't be imported in the module that contains the XPath expression. So I
> don't
> 
> > know what 'corresponding "import" statement' this paragraph is talking
> about.
> 
> 
> It has to import the module in order to give a prefix, which then can
> be used in the XPath expression.

In the XPath expression above, do you mean the "rt" prefix of "rt:type"? If so,
it is irrelevant for the string comparison, what's important is the *value* of
the "rt:type" instance, which can be an identity defined in a module that
needn't be imported by ietf-routing, ietf-ospf or whatever. Sec. 9.10.2:

   On a particular server, the valid values are further restricted to the set of
     identities defined in the modules implemented by the server.

> 
> > Also, potentially there can be a collision in prefixes and then this also
> breaks
> 
> > down.
> 
> 
> No, two modules cannot be imported with the same prefix.

I have to disagree. An identity derived from the "ietf-routing:control-protocol-
type" base identity can be defined in a module that is not imported anywhere. If
a server declares such a module as implemented, then "rt:type" may have this
value per sec. 9.10.2.

And, consequently, there may be two different modules with conflicting prefixes
defining identities that are derived from "ietf-routing:control-protocol-type". 

> 
> > A moral of the namespace/prefix story in XML was that relying of namespace
> 
> > prefixes having a particular value is a really bad idea. I know that the
> cited
> 
> > paragraph was intended to make such XPath string comparisons more
> deterministic,
> 
> > but it is also problematic and should be avoided if possible.
> 
> 
> Note that this prefix is under the control of the module designer
> writing the XPath expression.  The same identityref value might use a

No, it is not. The prefixes appear in instance data.

Lada

> different prefix in some other module.
> 
> 
> /martin
> 
> 
> 
> > 
> 
> > Lada
> 
> > 
> 
> > > 
> 
> > > So the equality test of the identityref is correct.
> 
> > > 
> 
> > > However, I agree that in most cases 'derived-from-or-self' should be
> 
> > > used, in order to handle derived identities.
> 
> > > 
> 
> > > 
> 
> > > /martin
> 
> > -- 
> 
> > Ladislav Lhotka
> 
> > Head, CZ.NIC Labs
> 
> > PGP Key ID: 0xB8F92B08A9F76C67
> 
> > 
> 
-- 
Ladislav Lhotka
Head, CZ.NIC Labs
PGP Key ID: 0xB8F92B08A9F76C67


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References: <151510872060.14779.1209340587073567227@ietfa.amsl.com> <D6742D72.E86AC%acee@cisco.com> <bc44e16c2bf94d34a92d10c3f64ae07e@XCH-ALN-001.cisco.com> <D6745005.E86F2%acee@cisco.com> <07098d41e11849d9a320061bb68aec0f@XCH-ALN-008.cisco.com> <cbdc429805b64c87a4f66cb3da1a49d2@XCH-ALN-001.cisco.com> <D674E4F9.E87E8%acee@cisco.com> <BN3PR05MB27061E9F6515017EF94E10DCD51C0@BN3PR05MB2706.namprd05.prod.outlook.com> <26758_1515418771_5A537493_26758_190_1_53C29892C857584299CBF5D05346208A4793F82A@OPEXCLILM21.corporate.adroot.infra.ftgroup> <CAEFuwkiy1Rdnba3jyEcYq_43Xyutm9S4mQHpuGe2UnHE11Twbw@mail.gmail.com> <D67A4FA7.E8FF1%acee@cisco.com>
From: Pushpasis Sarkar <pushpasis.ietf@gmail.com>
Date: Thu, 11 Jan 2018 14:55:46 +0530
Message-ID: <CAEFuwkhCPYUrqceKgEv0OkXOKYHkn_v+GEEkoAA+Ho7FA536nw@mail.gmail.com>
To: "Acee Lindem (acee)" <acee@cisco.com>
Cc: Bruno Decraene <bruno.decraene@orange.com>, Shraddha Hegde <shraddha@juniper.net>,  "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Ketan Talaulikar (ketant)" <ketant@cisco.com>,  Joel Halpern <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>,  "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
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Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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Hi Acee,

LOL.. Might as well be 'link-on-break'.. :)

Anyways graceful-link-shutdown seems to be the most agreed upon.

Thanks and regards,
-Pushpasis


On Tue, Jan 9, 2018 at 9:29 PM, Acee Lindem (acee) <acee@cisco.com> wrote:

> Hi Pushpasis, Shraddha, et al,
>
> From: Pushpasis Sarkar <pushpasis.ietf@gmail.com>
> Date: Monday, January 8, 2018 at 12:22 PM
> To: Bruno Decraene <bruno.decraene@orange.com>
> Cc: Shraddha Hegde <shraddha@juniper.net>, Acee Lindem <acee@cisco.com>,
> "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Ketan Talaulikar
> (ketant)" <ketant@cisco.com>, "Joel M. Halpern" <jmh@joelhalpern.com>, "
> gen-art@ietf.org" <gen-art@ietf.org>, OSPF WG List <ospf@ietf.org>, "
> ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-ospf-link-
> overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
> Subject: Re: Genart last call review of draft-ietf-ospf-link-overload-11
> Resent-From: <alias-bounces@ietf.org>
> Resent-To: Shraddha Hegde <shraddha@juniper.net>, Pushpasis Sarkar <
> pushpasis.ietf@gmail.com>, Hannes Gredler <hannes@gredler.at>, <
> mnanduri@ebay.com>, Luay Jalil <luay.jalil@verizon.com>, Acee Lindem <
> acee@cisco.com>, <akr@cisco.com>, Alvaro Retana <aretana.ietf@gmail.com>,
> Deborah Brungard <db3546@att.com>, Alia Atlas <akatlas@gmail.com>, Acee
> Lindem <acee@cisco.com>
> Resent-Date: Monday, January 8, 2018 at 12:22 PM
>
> Hi Joel et al,
>
> +1 for 'graceful-link-shutdown'.
>
>
> I think we are converging on this. I must admit that it is much better
> than =E2=80=9Clink-overload=E2=80=9D. Although Les raises a good point th=
at this behavior
> could be used for other use cases, subsequent discussions have indicated
> that these could be handled differently.
>
>
> Another possibility may be 'link-decommission'..
>
>
> This implies too much permanence. If you decommission something, you are
> more or less retiring It which is not this use case. This is more of givi=
ng
> the link a rest. Maybe we could use the there term =E2=80=9CLink on Leave=
=E2=80=9D or LOL
> state ;^).
>
> Thanks,
> Acee
>
>
> Thanks and regards
> -Pushpasis
>
> On Mon, Jan 8, 2018 at 7:09 PM, <bruno.decraene@orange.com> wrote:
>
>>
>>
>>
>>
>> *From:* Shraddha Hegde
>>
>> How about =E2=80=9Cgraceful-link-shutdown=E2=80=9D ?
>>
>>
>>
>> Looks good to me.
>>
>> Also, FYI, for BGP sessions, in the GROW WG we used the term =E2=80=9CGr=
aceful BGP session shutdown=E2=80=9D and named the BGP community =E2=80=9CG=
RACEFUL_SHUTDOWN=E2=80=9D so this would align on the terminology.
>>
>> https://tools.ietf.org/html/draft-ietf-grow-bgp-gshut-13
>>
>>
>>
>> Best regards,
>>
>> --Bruno
>>
>>
>>
>>
>>
>> Rgds
>>
>> Shraddha
>>
>>
>>
>>
>>
>>
>>
>> *From:* Acee Lindem (acee) [mailto:acee@cisco.com <acee@cisco.com>]
>> *Sent:* Friday, January 5, 2018 6:50 PM
>> *To:* Les Ginsberg (ginsberg) <ginsberg@cisco.com>; Ketan Talaulikar
>> (ketant) <ketant@cisco.com>; Joel Halpern <jmh@joelhalpern.com>;
>> gen-art@ietf.org
>> *Cc:* ospf@ietf.org; ietf@ietf.org; draft-ietf-ospf-link-overload.
>> all@ietf.org
>> *Subject:* Re: Genart last call review of draft-ietf-ospf-link-overload-
>> 11
>>
>>
>>
>> It is not in =E2=80=9Cmaintenance" mode yet as it is still being used. H=
owever,
>> it is better than =E2=80=9Coverload=E2=80=9D. =E2=80=9Cpending-maintenan=
ce=E2=80=9D is a bit long which is
>> why I suggested =E2=80=9Cpending-shutdown=E2=80=9D since =E2=80=9Cshutdo=
wn=E2=80=9D is term that vendors
>> have used for eons to described an interface that is not in service.
>>
>> Thanks,
>>
>> Acee
>>
>>
>>
>> *From: *"Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
>> *Date: *Thursday, January 4, 2018 at 11:56 PM
>> *To: *"Ketan Talaulikar (ketant)" <ketant@cisco.com>, Acee Lindem <
>> acee@cisco.com>, "Joel M. Halpern" <jmh@joelhalpern.com>, "
>> gen-art@ietf.org" <gen-art@ietf.org>
>> *Cc: *OSPF WG List <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "
>> draft-ietf-ospf-link-overload.all@ietf.org" <
>> draft-ietf-ospf-link-overload.all@ietf.org>
>> *Subject: *RE: Genart last call review of draft-ietf-ospf-link-overload-
>> 11
>>
>>
>>
>> Ketan =E2=80=93
>>
>>
>>
>> =E2=80=9Cmaintenance=E2=80=9D I could live with.
>>
>>
>>
>> =E2=80=9CGIR=E2=80=9D seems to not be generic enough.
>>
>>
>>
>>    Les
>>
>>
>>
>>
>>
>> *From:* Ketan Talaulikar (ketant)
>> *Sent:* Thursday, January 04, 2018 8:09 PM
>> *To:* Acee Lindem (acee) <acee@cisco.com>; Les Ginsberg (ginsberg) <
>> ginsberg@cisco.com>; Joel Halpern <jmh@joelhalpern.com>; gen-art@ietf.or=
g
>> *Cc:* ospf@ietf.org; ietf@ietf.org; draft-ietf-ospf-link-overload.
>> all@ietf.org
>> *Subject:* RE: Genart last call review of draft-ietf-ospf-link-overload-
>> 11
>>
>>
>>
>> Hello,
>>
>>
>>
>> May I suggest something more generic like =E2=80=9CMaintenance Mode=E2=
=80=9D or =E2=80=9CGraceful
>> Insertion/Removal (GIR) Mode=E2=80=9D which could be defined so as to co=
ver the
>> multiple scenarios in question (e.g. pending shutdown, down for repairs,
>> last resort due to poor link quality, etc.).
>>
>>
>>
>> Thanks,
>>
>> Ketan
>>
>>
>>
>> *From:* OSPF [mailto:ospf-bounces@ietf.org <ospf-bounces@ietf.org>] *On
>> Behalf Of *Acee Lindem (acee)
>> *Sent:* 05 January 2018 08:14
>> *To:* Les Ginsberg (ginsberg) <ginsberg@cisco.com>; Joel Halpern <
>> jmh@joelhalpern.com>; gen-art@ietf.org
>> *Cc:* ospf@ietf.org; ietf@ietf.org; draft-ietf-ospf-link-overload.
>> all@ietf.org
>> *Subject:* Re: [OSPF] Genart last call review of
>> draft-ietf-ospf-link-overload-11
>>
>>
>>
>> Hi Les,
>>
>>
>>
>> *From: *"Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
>> *Date: *Thursday, January 4, 2018 at 9:26 PM
>> *To: *Acee Lindem <acee@cisco.com>, "Joel M. Halpern" <
>> jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>
>> *Cc: *OSPF WG List <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "
>> draft-ietf-ospf-link-overload.all@ietf.org" <
>> draft-ietf-ospf-link-overload.all@ietf.org>
>> *Subject: *RE: Genart last call review of draft-ietf-ospf-link-overload-
>> 11
>>
>>
>>
>> > >Minor issues:
>>
>> > >    I understand the WG likes using the term "overload" for a link
>>
>> > >being taken
>>
>> > >    out of service.  I think people will learn what we mean.  I do wi=
sh
>>
>> > >we had
>>
>> > >    not chosen to misuse the words in this fashion.  This is much mor=
e
>> a
>>
>> > >    graceful-link-close indication (or clsoe-pending indication) than
>>
>> > >it is an
>>
>> > >    overload indication.
>>
>> >
>>
>> > I agree with this comment but I wasn=E2=80=99t sure we=E2=80=99d reach=
 consensus on a
>>
>> > better alternative. However, after some though and consideration of
>> current
>>
>> > OSPF router terminology, I=E2=80=99d propose we use the term =E2=80=9C=
Pending-Shutdown=E2=80=9D.
>>
>> > Does anyone not agree that this is a more appropriate moniker for the
>> TLV
>>
>> > and state?
>>
>> >
>>
>> [Les:] I agree with Joel's comment. The use of the term "overload" is
>> unfortunate.
>>
>> But "pending-shutdown" isn=E2=80=99t appealing to me because - at least =
in most
>> use cases - you aren't actually going to shutdown the link. What you are
>> going to do is make a link the "link of last resort".
>>
>> This seems a better choice.
>>
>>
>>
>> That is not the use case - you are going to take the link down. It is no=
t
>> going to be the "link of last resort=E2=80=9D, it is the currently the =
=E2=80=9Clink of
>> last resort=E2=80=9D and will imminently be taken down.
>>
>>
>>
>>
>>
>> The suggestion from Shraddha that this term was borrowed from IS-IS isn'=
t
>> accurate. "overload" in IS-IS has a very different meaning - it indicate=
s a
>> node either has an incomplete LSDB or (a la RFC 3277
>> <https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__datatracker.ietf=
.org_doc_rfc3277_&d=3DDwMGaQ&c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoC=
I&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&m=3D7GM8zN1-Ff2au_agmHAki=
NYK2R5Aji-EjpyT8gmgRYU&s=3D769ndBiWrwubwBNccNtOnDuHr1yMD-W10WuEarCDNgI&e=3D=
>
>> )an incomplete forwarding plane.
>>
>>
>>
>> The only use of "link overload" in IS-IS occurs in
>> https://tools.ietf.org/html/draft-ietf-isis-reverse-metric-07#section-3.=
6
>> <https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.ietf.org_h=
tml_draft-2Dietf-2Disis-2Dreverse-2Dmetric-2D07-23section-2D3.6&d=3DDwMGaQ&=
c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DNyjLsr7JA7mvpCJa0YmPdVK=
cmMXJ31bpbBaNqzCNrng&m=3D7GM8zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU&s=3Dr_=
8muG61-ePlkCbqf7qIcHUPHGtjWf_JOH1UXH7lp8U&e=3D>
>> and this was added recently to support the (very useful) TE use case whi=
ch
>> was defined in https://tools.ietf.org/html/dr
>> aft-ietf-ospf-link-overload-11
>> <https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.ietf.org_h=
tml_draft-2Dietf-2Dospf-2Dlink-2Doverload-2D11&d=3DDwMGaQ&c=3DHAkYuh63rsuhr=
6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCN=
rng&m=3D7GM8zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU&s=3DumZHmgXp6i4i0PAyZbs=
DS0iorBurDZsFIyvaVVXEHb0&e=3D>
>> . When this was done the term "link-overload" was cut and pasted from th=
e
>> OSPF draft. I think this should also be changed in the IS-IS draft.
>>
>>
>>
>> Agreed.
>>
>>
>>
>> Thanks,
>>
>> Acee
>>
>>
>>
>>    Les
>>
>>
>>
>> > Thanks,
>>
>> > Acee
>>
>> > >
>>
>> > >
>>
>> > >
>>
>> >
>>
>> > _______________________________________________
>>
>> > OSPF mailing list
>>
>> > OSPF@ietf.org
>>
>> > https://www.ietf.org/mailman/listinfo/ospf
>> <https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.ietf.org_mai=
lman_listinfo_ospf&d=3DDwMGaQ&c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzo=
CI&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&m=3D7GM8zN1-Ff2au_agmHAk=
iNYK2R5Aji-EjpyT8gmgRYU&s=3DN51dsQzqzgGoBY61VJtqkgGHlrNjgZT_-9g8G_pcOyE&e=
=3D>
>>
>> ________________________________________________________________________=
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Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr">Hi Acee,<div><br></div><div>LOL.. Might as well be &#39;li=
nk-on-break&#39;.. :)</div><div><br></div><div>Anyways graceful-link-shutdo=
wn seems to be the most agreed upon.=C2=A0</div><div><br></div><div>Thanks =
and regards,</div><div>-Pushpasis</div><div><br></div></div><div class=3D"g=
mail_extra"><br><div class=3D"gmail_quote">On Tue, Jan 9, 2018 at 9:29 PM, =
Acee Lindem (acee) <span dir=3D"ltr">&lt;<a href=3D"mailto:acee@cisco.com" =
target=3D"_blank">acee@cisco.com</a>&gt;</span> wrote:<br><blockquote class=
=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd=
ing-left:1ex">



<div style=3D"word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-fam=
ily:Calibri,sans-serif">
<div>Hi Pushpasis, Shraddha, et al,=C2=A0</div>
<div><br>
</div>
<span id=3D"m_6101061088303071819OLK_SRC_BODY_SECTION">
<div style=3D"font-family:Calibri;font-size:11pt;text-align:left;color:blac=
k;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADD=
ING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:me=
dium none;PADDING-TOP:3pt">
<span style=3D"font-weight:bold">From: </span>Pushpasis Sarkar &lt;<a href=
=3D"mailto:pushpasis.ietf@gmail.com" target=3D"_blank">pushpasis.ietf@gmail=
.com</a>&gt;<br>
<span style=3D"font-weight:bold">Date: </span>Monday, January 8, 2018 at 12=
:22 PM<br>
<span style=3D"font-weight:bold">To: </span>Bruno Decraene &lt;<a href=3D"m=
ailto:bruno.decraene@orange.com" target=3D"_blank">bruno.decraene@orange.co=
m</a>&gt;<br>
<span style=3D"font-weight:bold">Cc: </span>Shraddha Hegde &lt;<a href=3D"m=
ailto:shraddha@juniper.net" target=3D"_blank">shraddha@juniper.net</a>&gt;,=
 Acee Lindem &lt;<a href=3D"mailto:acee@cisco.com" target=3D"_blank">acee@c=
isco.com</a>&gt;, &quot;Les Ginsberg (ginsberg)&quot; &lt;<a href=3D"mailto=
:ginsberg@cisco.com" target=3D"_blank">ginsberg@cisco.com</a>&gt;,
 &quot;Ketan Talaulikar (ketant)&quot; &lt;<a href=3D"mailto:ketant@cisco.c=
om" target=3D"_blank">ketant@cisco.com</a>&gt;, &quot;Joel M. Halpern&quot;=
 &lt;<a href=3D"mailto:jmh@joelhalpern.com" target=3D"_blank">jmh@joelhalpe=
rn.com</a>&gt;, &quot;<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank"=
>gen-art@ietf.org</a>&quot; &lt;<a href=3D"mailto:gen-art@ietf.org" target=
=3D"_blank">gen-art@ietf.org</a>&gt;,
 OSPF WG List &lt;<a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf@i=
etf.org</a>&gt;, &quot;<a href=3D"mailto:ietf@ietf.org" target=3D"_blank">i=
etf@ietf.org</a>&quot; &lt;<a href=3D"mailto:ietf@ietf.org" target=3D"_blan=
k">ietf@ietf.org</a>&gt;, &quot;<a href=3D"mailto:draft-ietf-ospf-link-over=
load.all@ietf.org" target=3D"_blank">draft-ietf-ospf-link-<wbr>overload.all=
@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf.org" target=
=3D"_blank">draft-ietf-ospf-link-<wbr>overload.all@ietf.org</a>&gt;<span cl=
ass=3D""><br>
<span style=3D"font-weight:bold">Subject: </span>Re: Genart last call revie=
w of draft-ietf-ospf-link-overload-<wbr>11<br>
</span><span style=3D"font-weight:bold">Resent-From: </span>&lt;<a href=3D"=
mailto:alias-bounces@ietf.org" target=3D"_blank">alias-bounces@ietf.org</a>=
&gt;<br>
<span style=3D"font-weight:bold">Resent-To: </span>Shraddha Hegde &lt;<a hr=
ef=3D"mailto:shraddha@juniper.net" target=3D"_blank">shraddha@juniper.net</=
a>&gt;, Pushpasis Sarkar &lt;<a href=3D"mailto:pushpasis.ietf@gmail.com" ta=
rget=3D"_blank">pushpasis.ietf@gmail.com</a>&gt;, Hannes Gredler &lt;<a hre=
f=3D"mailto:hannes@gredler.at" target=3D"_blank">hannes@gredler.at</a>&gt;,
 &lt;<a href=3D"mailto:mnanduri@ebay.com" target=3D"_blank">mnanduri@ebay.c=
om</a>&gt;, Luay Jalil &lt;<a href=3D"mailto:luay.jalil@verizon.com" target=
=3D"_blank">luay.jalil@verizon.com</a>&gt;, Acee Lindem &lt;<a href=3D"mail=
to:acee@cisco.com" target=3D"_blank">acee@cisco.com</a>&gt;, &lt;<a href=3D=
"mailto:akr@cisco.com" target=3D"_blank">akr@cisco.com</a>&gt;,
 Alvaro Retana &lt;<a href=3D"mailto:aretana.ietf@gmail.com" target=3D"_bla=
nk">aretana.ietf@gmail.com</a>&gt;, Deborah Brungard &lt;<a href=3D"mailto:=
db3546@att.com" target=3D"_blank">db3546@att.com</a>&gt;, Alia Atlas &lt;<a=
 href=3D"mailto:akatlas@gmail.com" target=3D"_blank">akatlas@gmail.com</a>&=
gt;, Acee Lindem &lt;<a href=3D"mailto:acee@cisco.com" target=3D"_blank">ac=
ee@cisco.com</a>&gt;<br>
<span style=3D"font-weight:bold">Resent-Date: </span>Monday, January 8, 201=
8 at 12:22 PM<br>
</div><span class=3D"">
<div><br>
</div>
<blockquote id=3D"m_6101061088303071819MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" =
style=3D"BORDER-LEFT:#b5c4df 5 solid;PADDING:0 0 0 5;MARGIN:0 0 0 5">
<div>
<div>
<div dir=3D"ltr">Hi Joel et al,
<div><br>
</div>
<div>+1 for &#39;graceful-link-shutdown&#39;.</div>
</div>
</div>
</div>
</blockquote>
</span></span>
<div><br>
</div>
<div>I think we are converging on this. I must admit that it is much better=
 than =E2=80=9Clink-overload=E2=80=9D. Although Les raises a good point tha=
t this behavior could be used for other use cases, subsequent discussions h=
ave indicated that these could be handled differently.=C2=A0</div><span cla=
ss=3D"">
<div><br>
</div>
<div><br>
</div>
<span id=3D"m_6101061088303071819OLK_SRC_BODY_SECTION">
<blockquote id=3D"m_6101061088303071819MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" =
style=3D"BORDER-LEFT:#b5c4df 5 solid;PADDING:0 0 0 5;MARGIN:0 0 0 5">
<div>
<div>
<div dir=3D"ltr">
<div>Another possibility may be &#39;link-decommission&#39;..=C2=A0</div>
</div>
</div>
</div>
</blockquote>
</span>
<div><br>
</div>
</span><div>This implies too much permanence. If you decommission something=
, you are more or less retiring It which is not this use case. This is more=
 of giving the link a rest. Maybe we could use the there term =E2=80=9CLink=
 on Leave=E2=80=9D or LOL state ;^). =C2=A0</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Acee</div><div><div class=3D"h5">
<div><br>
</div>
<span id=3D"m_6101061088303071819OLK_SRC_BODY_SECTION">
<blockquote id=3D"m_6101061088303071819MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" =
style=3D"BORDER-LEFT:#b5c4df 5 solid;PADDING:0 0 0 5;MARGIN:0 0 0 5">
<div>
<div>
<div dir=3D"ltr">
<div>
<div><br>
</div>
<div>Thanks and regards</div>
<div>-Pushpasis</div>
</div>
</div>
<div class=3D"gmail_extra"><br>
<div class=3D"gmail_quote">On Mon, Jan 8, 2018 at 7:09 PM, <span dir=3D"ltr=
">&lt;<a href=3D"mailto:bruno.decraene@orange.com" target=3D"_blank">bruno.=
decraene@orange.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<div lang=3D"FR" link=3D"blue" vlink=3D"purple">
<div class=3D"m_6101061088303071819m_-6849180046638241106WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:10pt;font-family:Arial,sans=
-serif;color:black"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10pt;font-family:Arial,sans=
-serif;color:black"><u></u>=C2=A0<u></u></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:10pt;font=
-family:Tahoma,sans-serif">From:</span></b><span lang=3D"EN-US" style=3D"fo=
nt-size:10pt;font-family:Tahoma,sans-serif"> Shraddha Hegde<br>
<br>
</span><span lang=3D"EN-US"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">How abo=
ut =E2=80=9Cgraceful-link-shutdown=E2=80=9D ?<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black"><u></u>=
=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10pt;font-fa=
mily:Arial,sans-serif;color:black">Looks good to me.<u></u><u></u></span></=
p>
<pre><span lang=3D"EN-US" style=3D"font-family:Arial,sans-serif;color:black=
">Also, FYI, for BGP sessions, in the GROW WG we used the term =E2=80=9CGra=
ceful BGP session shutdown=E2=80=9D and named the BGP community =E2=80=9C</=
span><span lang=3D"EN-US">GRACEFUL_SHUTDOWN</span><span lang=3D"EN-US" styl=
e=3D"font-family:Arial,sans-serif;color:black">=E2=80=9D so this would alig=
n on the terminology.<u></u><u></u></span></pre>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10pt;font-fa=
mily:Arial,sans-serif;color:black"><a href=3D"https://tools.ietf.org/html/d=
raft-ietf-grow-bgp-gshut-13" target=3D"_blank">https://tools.ietf.org/html/=
dr<wbr>aft-ietf-grow-bgp-gshut-13</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10pt;font-fa=
mily:Arial,sans-serif;color:black"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10pt;font-fa=
mily:Arial,sans-serif;color:black">Best regards,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10pt;font-fa=
mily:Arial,sans-serif;color:black">--Bruno<u></u><u></u></span></p>
<div>
<div class=3D"m_6101061088303071819h5">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10pt;font-fa=
mily:Arial,sans-serif;color:black"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10pt;font-fa=
mily:Arial,sans-serif;color:black"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">Rgds<u>=
</u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">Shraddh=
a<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d"><u></u>=
=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d"><u></u>=
=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d"><u></u>=
=C2=A0<u></u></span></p>
<div>
<div style=3D"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> Acee Lindem (acee) [<a href=3D"mailto:acee@cisco.com" target=3D=
"_blank">mailto:acee@cisco.com</a>]
<br>
<b>Sent:</b> Friday, January 5, 2018 6:50 PM<br>
<b>To:</b> Les Ginsberg (ginsberg) &lt;<a href=3D"mailto:ginsberg@cisco.com=
" target=3D"_blank">ginsberg@cisco.com</a>&gt;; Ketan Talaulikar (ketant) &=
lt;<a href=3D"mailto:ketant@cisco.com" target=3D"_blank">ketant@cisco.com</=
a>&gt;; Joel Halpern &lt;<a href=3D"mailto:jmh@joelhalpern.com" target=3D"_=
blank">jmh@joelhalpern.com</a>&gt;;
<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org</a><=
br>
<b>Cc:</b> <a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf@ietf.org=
</a>; <a href=3D"mailto:ietf@ietf.org" target=3D"_blank">
ietf@ietf.org</a>; <a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf=
.org" target=3D"_blank">
draft-ietf-ospf-link-overload.<wbr>all@ietf.org</a><br>
<b>Subject:</b> Re: Genart last call review of draft-ietf-ospf-link-overloa=
d-<wbr>11<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:black">It is not in =E2=80=9Cmaintenance&quot; mode yet as it is still bei=
ng used. However, it is better than =E2=80=9Coverload=E2=80=9D. =E2=80=9Cpe=
nding-maintenance=E2=80=9D is a bit long which is why I suggested =E2=80=9C=
pending-shutdown=E2=80=9D
 since =E2=80=9Cshutdown=E2=80=9D is term that vendors have used for eons t=
o described an interface that is not in service.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:black">Thanks,<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:black">Acee=C2=A0<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:black"><u></u>=C2=A0<u></u></span></p>
</div>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"color:black">From: =
</span></b><span lang=3D"EN-US" style=3D"color:black">&quot;Les Ginsberg (g=
insberg)&quot; &lt;<a href=3D"mailto:ginsberg@cisco.com" target=3D"_blank">=
ginsberg@cisco.com</a>&gt;<br>
<b>Date: </b>Thursday, January 4, 2018 at 11:56 PM<br>
<b>To: </b>&quot;Ketan Talaulikar (ketant)&quot; &lt;<a href=3D"mailto:keta=
nt@cisco.com" target=3D"_blank">ketant@cisco.com</a>&gt;, Acee Lindem &lt;<=
a href=3D"mailto:acee@cisco.com" target=3D"_blank">acee@cisco.com</a>&gt;, =
&quot;Joel M. Halpern&quot; &lt;<a href=3D"mailto:jmh@joelhalpern.com" targ=
et=3D"_blank">jmh@joelhalpern.com</a>&gt;,
 &quot;<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.o=
rg</a>&quot; &lt;<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-=
art@ietf.org</a>&gt;<br>
<b>Cc: </b>OSPF WG List &lt;<a href=3D"mailto:ospf@ietf.org" target=3D"_bla=
nk">ospf@ietf.org</a>&gt;, &quot;<a href=3D"mailto:ietf@ietf.org" target=3D=
"_blank">ietf@ietf.org</a>&quot; &lt;<a href=3D"mailto:ietf@ietf.org" targe=
t=3D"_blank">ietf@ietf.org</a>&gt;, &quot;<a href=3D"mailto:draft-ietf-ospf=
-link-overload.all@ietf.org" target=3D"_blank">draft-ietf-ospf-link-overloa=
d<wbr>.all@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf.org" target=
=3D"_blank">draft-ietf-ospf-link-overload<wbr>.all@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: Genart last call review of draft-ietf-ospf-link-overloa=
d-<wbr>11<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:black"><u></u>=C2=A0<u></u></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #b5c4df 4.5pt;padding:0c=
m 0cm 0cm 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin=
-bottom:5.0pt" id=3D"m_6101061088303071819m_-6849180046638241106MAC_OUTLOOK=
_ATTRIBUTION_BLOCKQUOTE">
<div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">Ketan =
=E2=80=93</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=E2=80=
=9Cmaintenance=E2=80=9D I could live with.</span><span lang=3D"EN-US" style=
=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=E2=80=
=9CGIR=E2=80=9D seems to not be generic enough.</span><span lang=3D"EN-US" =
style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=C2=A0=
=C2=A0 Les</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"color:black">From:<=
/span></b><span lang=3D"EN-US" style=3D"color:black"> Ketan Talaulikar (ket=
ant)
<br>
<b>Sent:</b> Thursday, January 04, 2018 8:09 PM<br>
<b>To:</b> Acee Lindem (acee) &lt;<a href=3D"mailto:acee@cisco.com" target=
=3D"_blank">acee@cisco.com</a>&gt;; Les Ginsberg (ginsberg) &lt;<a href=3D"=
mailto:ginsberg@cisco.com" target=3D"_blank">ginsberg@cisco.com</a>&gt;; Jo=
el Halpern &lt;<a href=3D"mailto:jmh@joelhalpern.com" target=3D"_blank">jmh=
@joelhalpern.com</a>&gt;;
<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org</a><=
br>
<b>Cc:</b> <a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf@ietf.org=
</a>; <a href=3D"mailto:ietf@ietf.org" target=3D"_blank">
ietf@ietf.org</a>; <a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf=
.org" target=3D"_blank">
draft-ietf-ospf-link-overload.<wbr>all@ietf.org</a><br>
<b>Subject:</b> RE: Genart last call review of draft-ietf-ospf-link-overloa=
d-<wbr>11<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">=C2=A0<u>=
</u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">Hello,<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">May I s=
uggest something more generic like =E2=80=9CMaintenance Mode=E2=80=9D or =
=E2=80=9CGraceful Insertion/Removal (GIR) Mode=E2=80=9D which could be defi=
ned so as to cover the multiple scenarios in question (e.g. pending shutdow=
n,
 down for repairs, last resort due to poor link quality, etc.).</span><span=
 lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">Thanks,=
</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">Ketan</=
span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:#1f497d">=C2=A0<=
/span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<div>
<div style=3D"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"color:black">From:<=
/span></b><span lang=3D"EN-US" style=3D"color:black"> OSPF [<a href=3D"mail=
to:ospf-bounces@ietf.org" target=3D"_blank">mailto:ospf-bounces@ietf.org</a=
>]
<b>On Behalf Of </b>Acee Lindem (acee)<br>
<b>Sent:</b> 05 January 2018 08:14<br>
<b>To:</b> Les Ginsberg (ginsberg) &lt;<a href=3D"mailto:ginsberg@cisco.com=
" target=3D"_blank">ginsberg@cisco.com</a>&gt;; Joel Halpern &lt;<a href=3D=
"mailto:jmh@joelhalpern.com" target=3D"_blank">jmh@joelhalpern.com</a>&gt;;
<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org</a><=
br>
<b>Cc:</b> <a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf@ietf.org=
</a>; <a href=3D"mailto:ietf@ietf.org" target=3D"_blank">
ietf@ietf.org</a>; <a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf=
.org" target=3D"_blank">
draft-ietf-ospf-link-overload.<wbr>all@ietf.org</a><br>
<b>Subject:</b> Re: [OSPF] Genart last call review of draft-ietf-ospf-link-=
overload-<wbr>11<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"color:black">=C2=A0</s=
pan><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">Hi Les,=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u><=
/u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u><=
/u></span></p>
</div>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-IN" style=3D"color:black">From: =
</span></b><span lang=3D"EN-IN" style=3D"color:black">&quot;Les Ginsberg (g=
insberg)&quot; &lt;<a href=3D"mailto:ginsberg@cisco.com" target=3D"_blank">=
ginsberg@cisco.com</a>&gt;<br>
<b>Date: </b>Thursday, January 4, 2018 at 9:26 PM<br>
<b>To: </b>Acee Lindem &lt;<a href=3D"mailto:acee@cisco.com" target=3D"_bla=
nk">acee@cisco.com</a>&gt;, &quot;Joel M. Halpern&quot; &lt;<a href=3D"mail=
to:jmh@joelhalpern.com" target=3D"_blank">jmh@joelhalpern.com</a>&gt;, &quo=
t;<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org</a=
>&quot;
 &lt;<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org=
</a>&gt;<br>
<b>Cc: </b>OSPF WG List &lt;<a href=3D"mailto:ospf@ietf.org" target=3D"_bla=
nk">ospf@ietf.org</a>&gt;, &quot;<a href=3D"mailto:ietf@ietf.org" target=3D=
"_blank">ietf@ietf.org</a>&quot; &lt;<a href=3D"mailto:ietf@ietf.org" targe=
t=3D"_blank">ietf@ietf.org</a>&gt;, &quot;<a href=3D"mailto:draft-ietf-ospf=
-link-overload.all@ietf.org" target=3D"_blank">draft-ietf-ospf-link-overloa=
d<wbr>.all@ietf.org</a>&quot;
 &lt;<a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf.org" target=
=3D"_blank">draft-ietf-ospf-link-overload<wbr>.all@ietf.org</a>&gt;<br>
<b>Subject: </b>RE: Genart last call review of draft-ietf-ospf-link-overloa=
d-<wbr>11</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u></u></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u><=
/u></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #b5c4df 4.5pt;padding:0c=
m 0cm 0cm 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin=
-bottom:5.0pt" id=3D"m_6101061088303071819m_-6849180046638241106MAC_OUTLOOK=
_ATTRIBUTION_BLOCKQUOTE">
<div>
<div>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; &gt;Minor issues:<u></u><u></u></=
span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; &gt;=C2=A0=C2=A0=C2=A0 I understa=
nd the WG likes using the term &quot;overload&quot; for a link<u></u><u></u=
></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; &gt;being taken<u></u><u></u></sp=
an></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; &gt;=C2=A0=C2=A0=C2=A0 out of ser=
vice.=C2=A0 I think people will learn what we mean.=C2=A0 I do wish<u></u><=
u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; &gt;we had<u></u><u></u></span></=
p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; &gt;=C2=A0=C2=A0=C2=A0 not chosen=
 to misuse the words in this fashion.=C2=A0 This is much more a<u></u><u></=
u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; &gt;=C2=A0=C2=A0=C2=A0 graceful-l=
ink-close indication (or clsoe-pending indication) than<u></u><u></u></span=
></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; &gt;it is an<u></u><u></u></span>=
</p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; &gt;=C2=A0=C2=A0=C2=A0 overload i=
ndication.<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt;
<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; I agree with this comment but I w=
asn=E2=80=99t sure we=E2=80=99d reach consensus on a<u></u><u></u></span></=
p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; better alternative. However, afte=
r some though and consideration of current<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; OSPF router terminology, I=E2=80=
=99d propose we use the term =E2=80=9CPending-Shutdown=E2=80=9D.<u></u><u><=
/u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; Does anyone not agree that this i=
s a more appropriate moniker for the TLV<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; and state?<u></u><u></u></span></=
p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt;=C2=A0<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">[Les:] I agree with Joel&#39;s comment=
. The use of the term &quot;overload&quot; is unfortunate.<u></u><u></u></s=
pan></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">But &quot;pending-shutdown&quot; isn=
=E2=80=99t appealing to me because - at least in most use cases - you aren&=
#39;t actually going to shutdown the link. What you are going to do is make=
 a link
 the &quot;link of last resort&quot;. <u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">This seems a better choice.<u></u><u><=
/u></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">That is not the use case - you are going to take the link down. It =
is not going to be the &quot;link of last resort=E2=80=9D, it is the curren=
tly the =E2=80=9Clink of last resort=E2=80=9D and will imminently be
 taken down.=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u>=
<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u><=
/u></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #b5c4df 4.5pt;padding:0c=
m 0cm 0cm 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin=
-bottom:5.0pt" id=3D"m_6101061088303071819m_-6849180046638241106MAC_OUTLOOK=
_ATTRIBUTION_BLOCKQUOTE">
<div>
<div>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">=C2=A0<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">The suggestion from Shraddha that this=
 term was borrowed from IS-IS isn&#39;t accurate. &quot;overload&quot; in I=
S-IS has a very different meaning - it indicates a node either has an incom=
plete
 LSDB or (a la <a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttp=
s-3A__datatracker.ietf.org_doc_rfc3277_&amp;d=3DDwMGaQ&amp;c=3DHAkYuh63rsuh=
r6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBa=
NqzCNrng&amp;m=3D7GM8zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU&amp;s=3D769ndB=
iWrwubwBNccNtOnDuHr1yMD-W10WuEarCDNgI&amp;e=3D" target=3D"_blank">
RFC 3277</a> )an incomplete forwarding plane.<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">=C2=A0<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">The only use of &quot;link overload&qu=
ot; in IS-IS occurs in
<a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.iet=
f.org_html_draft-2Dietf-2Disis-2Dreverse-2Dmetric-2D07-23section-2D3.6&amp;=
d=3DDwMGaQ&amp;c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DNyjL=
sr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&amp;m=3D7GM8zN1-Ff2au_agmHAkiNYK2R5=
Aji-EjpyT8gmgRYU&amp;s=3Dr_8muG61-ePlkCbqf7qIcHUPHGtjWf_JOH1UXH7lp8U&amp;e=
=3D" target=3D"_blank">
https://tools.ietf.org/html/dr<wbr>aft-ietf-isis-reverse-metric-<wbr>07#sec=
tion-3.6</a> and this was added recently to support the (very useful) TE us=
e case which was defined in
<a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.iet=
f.org_html_draft-2Dietf-2Dospf-2Dlink-2Doverload-2D11&amp;d=3DDwMGaQ&amp;c=
=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvpCJa0YmP=
dVKcmMXJ31bpbBaNqzCNrng&amp;m=3D7GM8zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU=
&amp;s=3DumZHmgXp6i4i0PAyZbsDS0iorBurDZsFIyvaVVXEHb0&amp;e=3D" target=3D"_b=
lank">
https://tools.ietf.org/html/dr<wbr>aft-ietf-ospf-link-overload-11</a> . Whe=
n this was done the term &quot;link-overload&quot; was cut and pasted from =
the OSPF draft. I think this should also be changed in the IS-IS draft.<u><=
/u><u></u></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">Agreed.=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u><=
/u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">Thanks,</span><span lang=3D"EN-US" style=3D"color:black"><u></u><u>=
</u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"font-size:10.5pt;color=
:black">Acee=C2=A0</span><span lang=3D"EN-US" style=3D"color:black"><u></u>=
<u></u></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #b5c4df 4.5pt;padding:0c=
m 0cm 0cm 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin=
-bottom:5.0pt" id=3D"m_6101061088303071819m_-6849180046638241106MAC_OUTLOOK=
_ATTRIBUTION_BLOCKQUOTE">
<div>
<div>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">=C2=A0<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">=C2=A0=C2=A0 Les<u></u><u></u></span><=
/p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">=C2=A0<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; Thanks,<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; Acee<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; &gt;<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; &gt;<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; &gt;<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt;
<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; ______________________________<wb=
r>_________________<u></u><u></u></span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt; OSPF mailing list<u></u><u></u></=
span></p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt;
<a href=3D"mailto:OSPF@ietf.org" target=3D"_blank"><span style=3D"color:win=
dowtext;text-decoration:none">OSPF@ietf.org</span></a><u></u><u></u></span>=
</p>
<p class=3D"m_6101061088303071819m_-6849180046638241106MsoPlainText"><span =
lang=3D"EN-US" style=3D"color:black">&gt;
<a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.ietf.=
org_mailman_listinfo_ospf&amp;d=3DDwMGaQ&amp;c=3DHAkYuh63rsuhr6Scbfh0UjBXeM=
K-ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&amp;m=
=3D7GM8zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU&amp;s=3DN51dsQzqzgGoBY61VJtq=
kgGHlrNjgZT_-9g8G_pcOyE&amp;e=3D" target=3D"_blank">
<span style=3D"color:windowtext;text-decoration:none">https://www.ietf.org/=
mailman/l<wbr>istinfo/ospf</span></a><u></u><u></u></span></p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>
<pre>______________________________<wbr>______________________________<wbr>=
______________________________<wbr>______________________________<wbr>_

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</pre>
</div>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</blockquote>
</span>
</div></div></div>

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

--f403045d996ea3619405627cbb82--


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Date: Thu, 11 Jan 2018 09:54:51 -0800
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: Pushpasis Sarkar <pushpasis.ietf@gmail.com>, "Acee Lindem (acee)" <acee@cisco.com>
CC: "ietf@ietf.org" <ietf@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>, "gen-art@ietf.org" <gen-art@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
Message-ID: <A8D12FB9-C669-41DD-A9DE-E02B2C53AB8B@gmail.com>
Thread-Topic: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
References: <151510872060.14779.1209340587073567227@ietfa.amsl.com> <D6742D72.E86AC%acee@cisco.com> <bc44e16c2bf94d34a92d10c3f64ae07e@XCH-ALN-001.cisco.com> <D6745005.E86F2%acee@cisco.com> <07098d41e11849d9a320061bb68aec0f@XCH-ALN-008.cisco.com> <cbdc429805b64c87a4f66cb3da1a49d2@XCH-ALN-001.cisco.com> <D674E4F9.E87E8%acee@cisco.com> <BN3PR05MB27061E9F6515017EF94E10DCD51C0@BN3PR05MB2706.namprd05.prod.outlook.com> <26758_1515418771_5A537493_26758_190_1_53C29892C857584299CBF5D05346208A4793F82A@OPEXCLILM21.corporate.adroot.infra.ftgroup> <CAEFuwkiy1Rdnba3jyEcYq_43Xyutm9S4mQHpuGe2UnHE11Twbw@mail.gmail.com> <D67A4FA7.E8FF1%acee@cisco.com> <CAEFuwkhCPYUrqceKgEv0OkXOKYHkn_v+GEEkoAA+Ho7FA536nw@mail.gmail.com>
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Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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+1 on GLS, GS has well defined semantics, (L)ink describes the context=20

=20

Cheers,

Jeff

=20

From: OSPF <ospf-bounces@ietf.org> on behalf of Pushpasis Sarkar <pushpasis=
.ietf@gmail.com>
Date: Thursday, January 11, 2018 at 01:25
To: "Acee Lindem (acee)" <acee@cisco.com>
Cc: "ietf@ietf.org" <ietf@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>, "gen-=
art@ietf.org" <gen-art@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.or=
g" <draft-ietf-ospf-link-overload.all@ietf.org>
Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overloa=
d-11

=20

Hi Acee,

=20

LOL.. Might as well be 'link-on-break'.. :)

=20

Anyways graceful-link-shutdown seems to be the most agreed upon.=20

=20

Thanks and regards,

-Pushpasis

=20

=20

On Tue, Jan 9, 2018 at 9:29 PM, Acee Lindem (acee) <acee@cisco.com> wrote:

Hi Pushpasis, Shraddha, et al,=20

=20

From: Pushpasis Sarkar <pushpasis.ietf@gmail.com>
Date: Monday, January 8, 2018 at 12:22 PM
To: Bruno Decraene <bruno.decraene@orange.com>
Cc: Shraddha Hegde <shraddha@juniper.net>, Acee Lindem <acee@cisco.com>, "L=
es Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Ketan Talaulikar (ketant)" <k=
etant@cisco.com>, "Joel M. Halpern" <jmh@joelhalpern.com>, "gen-art@ietf.org=
" <gen-art@ietf.org>, OSPF WG List <ospf@ietf.org>, "ietf@ietf.org" <ietf@ie=
tf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-=
overload.all@ietf.org>
Subject: Re: Genart last call review of draft-ietf-ospf-link-overload-11
Resent-From: <alias-bounces@ietf.org>
Resent-To: Shraddha Hegde <shraddha@juniper.net>, Pushpasis Sarkar <pushpas=
is.ietf@gmail.com>, Hannes Gredler <hannes@gredler.at>, <mnanduri@ebay.com>,=
 Luay Jalil <luay.jalil@verizon.com>, Acee Lindem <acee@cisco.com>, <akr@cis=
co.com>, Alvaro Retana <aretana.ietf@gmail.com>, Deborah Brungard <db3546@at=
t.com>, Alia Atlas <akatlas@gmail.com>, Acee Lindem <acee@cisco.com>
Resent-Date: Monday, January 8, 2018 at 12:22 PM

=20

Hi Joel et al,=20

=20

+1 for 'graceful-link-shutdown'.

=20

I think we are converging on this. I must admit that it is much better than=
 =E2=80=9Clink-overload=E2=80=9D. Although Les raises a good point that this behavior co=
uld be used for other use cases, subsequent discussions have indicated that =
these could be handled differently.=20

=20

=20

Another possibility may be 'link-decommission'..=20

=20

This implies too much permanence. If you decommission something, you are mo=
re or less retiring It which is not this use case. This is more of giving th=
e link a rest. Maybe we could use the there term =E2=80=9CLink on Leave=E2=80=9D or LOL =
state ;^). =20

=20

Thanks,

Acee

=20

=20

Thanks and regards

-Pushpasis

=20

On Mon, Jan 8, 2018 at 7:09 PM, <bruno.decraene@orange.com> wrote:

=20

=20

From: Shraddha Hegde

How about =E2=80=9Cgraceful-link-shutdown=E2=80=9D ?

=20

Looks good to me.
Also, FYI, for BGP sessions, in the GROW WG we used the term =E2=80=9CGraceful BG=
P session shutdown=E2=80=9D and named the BGP community =E2=80=9CGRACEFUL_SHUTDOWN=E2=80=9D so=
 this would align on the terminology.
https://tools.ietf.org/html/draft-ietf-grow-bgp-gshut-13

=20

Best regards,

--Bruno

=20

=20

Rgds

Shraddha

=20

=20

=20

From: Acee Lindem (acee) [mailto:acee@cisco.com]=20
Sent: Friday, January 5, 2018 6:50 PM
To: Les Ginsberg (ginsberg) <ginsberg@cisco.com>; Ketan Talaulikar (ketant)=
 <ketant@cisco.com>; Joel Halpern <jmh@joelhalpern.com>; gen-art@ietf.org
Cc: ospf@ietf.org; ietf@ietf.org; draft-ietf-ospf-link-overload.all@ietf.or=
g
Subject: Re: Genart last call review of draft-ietf-ospf-link-overload-11

=20

It is not in =E2=80=9Cmaintenance" mode yet as it is still being used. However, i=
t is better than =E2=80=9Coverload=E2=80=9D. =E2=80=9Cpending-maintenance=E2=80=9D is a bit long whi=
ch is why I suggested =E2=80=9Cpending-shutdown=E2=80=9D since =E2=80=9Cshutdown=E2=80=9D is term th=
at vendors have used for eons to described an interface that is not in servi=
ce.

Thanks,

Acee=20

=20

From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
Date: Thursday, January 4, 2018 at 11:56 PM
To: "Ketan Talaulikar (ketant)" <ketant@cisco.com>, Acee Lindem <acee@cisco=
.com>, "Joel M. Halpern" <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@=
ietf.org>
Cc: OSPF WG List <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-i=
etf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf=
.org>
Subject: RE: Genart last call review of draft-ietf-ospf-link-overload-11

=20

Ketan =E2=80=93

=20

=E2=80=9Cmaintenance=E2=80=9D I could live with.

=20

=E2=80=9CGIR=E2=80=9D seems to not be generic enough.

=20

   Les

=20

=20

From: Ketan Talaulikar (ketant)=20
Sent: Thursday, January 04, 2018 8:09 PM
To: Acee Lindem (acee) <acee@cisco.com>; Les Ginsberg (ginsberg) <ginsberg@=
cisco.com>; Joel Halpern <jmh@joelhalpern.com>; gen-art@ietf.org
Cc: ospf@ietf.org; ietf@ietf.org; draft-ietf-ospf-link-overload.all@ietf.or=
g
Subject: RE: Genart last call review of draft-ietf-ospf-link-overload-11

=20

Hello,

=20

May I suggest something more generic like =E2=80=9CMaintenance Mode=E2=80=9D or =E2=80=9CGrac=
eful Insertion/Removal (GIR) Mode=E2=80=9D which could be defined so as to cover t=
he multiple scenarios in question (e.g. pending shutdown, down for repairs, =
last resort due to poor link quality, etc.).

=20

Thanks,

Ketan

=20

From: OSPF [mailto:ospf-bounces@ietf.org] On Behalf Of Acee Lindem (acee)
Sent: 05 January 2018 08:14
To: Les Ginsberg (ginsberg) <ginsberg@cisco.com>; Joel Halpern <jmh@joelhal=
pern.com>; gen-art@ietf.org
Cc: ospf@ietf.org; ietf@ietf.org; draft-ietf-ospf-link-overload.all@ietf.or=
g
Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overloa=
d-11

=20

Hi Les,=20

=20

From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
Date: Thursday, January 4, 2018 at 9:26 PM
To: Acee Lindem <acee@cisco.com>, "Joel M. Halpern" <jmh@joelhalpern.com>, =
"gen-art@ietf.org" <gen-art@ietf.org>
Cc: OSPF WG List <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-i=
etf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf=
.org>
Subject: RE: Genart last call review of draft-ietf-ospf-link-overload-11

=20

> >Minor issues:

> >    I understand the WG likes using the term "overload" for a link

> >being taken

> >    out of service.  I think people will learn what we mean.  I do wish

> >we had

> >    not chosen to misuse the words in this fashion.  This is much more a

> >    graceful-link-close indication (or clsoe-pending indication) than

> >it is an

> >    overload indication.

>=20

> I agree with this comment but I wasn=E2=80=99t sure we=E2=80=99d reach consensus on a

> better alternative. However, after some though and consideration of curre=
nt

> OSPF router terminology, I=E2=80=99d propose we use the term =E2=80=9CPending-Shutdow=
n=E2=80=9D.

> Does anyone not agree that this is a more appropriate moniker for the TLV

> and state?

>=20

[Les:] I agree with Joel's comment. The use of the term "overload" is unfor=
tunate.

But "pending-shutdown" isn=E2=80=99t appealing to me because - at least in most u=
se cases - you aren't actually going to shutdown the link. What you are goin=
g to do is make a link the "link of last resort".=20

This seems a better choice.

=20

That is not the use case - you are going to take the link down. It is not g=
oing to be the "link of last resort=E2=80=9D, it is the currently the =E2=80=9Clink of l=
ast resort=E2=80=9D and will imminently be taken down.=20

=20

=20

The suggestion from Shraddha that this term was borrowed from IS-IS isn't a=
ccurate. "overload" in IS-IS has a very different meaning - it indicates a n=
ode either has an incomplete LSDB or (a la RFC 3277 )an incomplete forwardin=
g plane.

=20

The only use of "link overload" in IS-IS occurs in https://tools.ietf.org/h=
tml/draft-ietf-isis-reverse-metric-07#section-3.6 and this was added recentl=
y to support the (very useful) TE use case which was defined in https://tool=
s.ietf.org/html/draft-ietf-ospf-link-overload-11 . When this was done the te=
rm "link-overload" was cut and pasted from the OSPF draft. I think this shou=
ld also be changed in the IS-IS draft.

=20

Agreed.=20

=20

Thanks,

Acee=20

=20

   Les

=20

> Thanks,

> Acee

> >

> >

> >

>=20

> _______________________________________________

> OSPF mailing list

> OSPF@ietf.org

> https://www.ietf.org/mailman/listinfo/ospf
___________________________________________________________________________=
______________________________________________
=20
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ectroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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=20
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ormation that may be protected by law;
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=20

=20

_______________________________________________ OSPF mailing list OSPF@ietf=
.org https://www.ietf.org/mailman/listinfo/ospf=20


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v class=3DWordSection1><p class=3DMsoNormal>+1 on GLS, GS has well defined seman=
tics, (L)ink describes the context <o:p></o:p></p><p class=3DMsoNormal><o:p>&n=
bsp;</o:p></p><div><p class=3DMsoNormal><span style=3D'color:black'>Cheers,<o:p>=
</o:p></span></p></div><p class=3DMsoNormal><span style=3D'color:black'>Jeff</sp=
an><o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><div style=3D'border=
:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMso=
Normal><b><span style=3D'font-size:12.0pt;color:black'>From: </span></b><span =
style=3D'font-size:12.0pt;color:black'>OSPF &lt;ospf-bounces@ietf.org&gt; on b=
ehalf of Pushpasis Sarkar &lt;pushpasis.ietf@gmail.com&gt;<br><b>Date: </b>T=
hursday, January 11, 2018 at 01:25<br><b>To: </b>&quot;Acee Lindem (acee)&qu=
ot; &lt;acee@cisco.com&gt;<br><b>Cc: </b>&quot;ietf@ietf.org&quot; &lt;ietf@=
ietf.org&gt;, &quot;ospf@ietf.org&quot; &lt;ospf@ietf.org&gt;, &quot;gen-art=
@ietf.org&quot; &lt;gen-art@ietf.org&gt;, &quot;draft-ietf-ospf-link-overloa=
d.all@ietf.org&quot; &lt;draft-ietf-ospf-link-overload.all@ietf.org&gt;<br><=
b>Subject: </b>Re: [OSPF] Genart last call review of draft-ietf-ospf-link-ov=
erload-11<o:p></o:p></span></p></div><div><p class=3DMsoNormal><o:p>&nbsp;</o:=
p></p></div><div><p class=3DMsoNormal>Hi Acee,<o:p></o:p></p><div><p class=3DMso=
Normal><o:p>&nbsp;</o:p></p></div><div><p class=3DMsoNormal>LOL.. Might as wel=
l be 'link-on-break'.. :)<o:p></o:p></p></div><div><p class=3DMsoNormal><o:p>&=
nbsp;</o:p></p></div><div><p class=3DMsoNormal>Anyways graceful-link-shutdown =
seems to be the most agreed upon.&nbsp;<o:p></o:p></p></div><div><p class=3DMs=
oNormal><o:p>&nbsp;</o:p></p></div><div><p class=3DMsoNormal>Thanks and regard=
s,<o:p></o:p></p></div><div><p class=3DMsoNormal>-Pushpasis<o:p></o:p></p></di=
v><div><p class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></div><div><p class=3DMso=
Normal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal>On Tue, Jan 9, 2018 at 9=
:29 PM, Acee Lindem (acee) &lt;<a href=3D"mailto:acee@cisco.com" target=3D"_blan=
k">acee@cisco.com</a>&gt; wrote:<o:p></o:p></p><blockquote style=3D'border:non=
e;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8p=
t;margin-right:0in'><div><div><p class=3DMsoNormal><span style=3D'font-size:10.5=
pt;color:black'>Hi Pushpasis, Shraddha, et al,&nbsp;<o:p></o:p></span></p></=
div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;color:black'><o:p>=
&nbsp;</o:p></span></p></div><div style=3D'border:none;border-top:solid #B5C4D=
F 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal><b><span style=3D'color:=
black'>From: </span></b><span style=3D'color:black'>Pushpasis Sarkar &lt;<a hr=
ef=3D"mailto:pushpasis.ietf@gmail.com" target=3D"_blank">pushpasis.ietf@gmail.co=
m</a>&gt;<br><b>Date: </b>Monday, January 8, 2018 at 12:22 PM<br><b>To: </b>=
Bruno Decraene &lt;<a href=3D"mailto:bruno.decraene@orange.com" target=3D"_blank=
">bruno.decraene@orange.com</a>&gt;<br><b>Cc: </b>Shraddha Hegde &lt;<a href=
=3D"mailto:shraddha@juniper.net" target=3D"_blank">shraddha@juniper.net</a>&gt;,=
 Acee Lindem &lt;<a href=3D"mailto:acee@cisco.com" target=3D"_blank">acee@cisco.=
com</a>&gt;, &quot;Les Ginsberg (ginsberg)&quot; &lt;<a href=3D"mailto:ginsber=
g@cisco.com" target=3D"_blank">ginsberg@cisco.com</a>&gt;, &quot;Ketan Talauli=
kar (ketant)&quot; &lt;<a href=3D"mailto:ketant@cisco.com" target=3D"_blank">ket=
ant@cisco.com</a>&gt;, &quot;Joel M. Halpern&quot; &lt;<a href=3D"mailto:jmh@j=
oelhalpern.com" target=3D"_blank">jmh@joelhalpern.com</a>&gt;, &quot;<a href=3D"=
mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org</a>&quot; &lt;<a h=
ref=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org</a>&gt;, OSPF=
 WG List &lt;<a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf@ietf.org</a=
>&gt;, &quot;<a href=3D"mailto:ietf@ietf.org" target=3D"_blank">ietf@ietf.org</a=
>&quot; &lt;<a href=3D"mailto:ietf@ietf.org" target=3D"_blank">ietf@ietf.org</a>=
&gt;, &quot;<a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf.org" targ=
et=3D"_blank">draft-ietf-ospf-link-overload.all@ietf.org</a>&quot; &lt;<a href=
=3D"mailto:draft-ietf-ospf-link-overload.all@ietf.org" target=3D"_blank">draft-i=
etf-ospf-link-overload.all@ietf.org</a>&gt;<br><b>Subject: </b>Re: Genart la=
st call review of draft-ietf-ospf-link-overload-11<br><b>Resent-From: </b>&l=
t;<a href=3D"mailto:alias-bounces@ietf.org" target=3D"_blank">alias-bounces@ietf=
.org</a>&gt;<br><b>Resent-To: </b>Shraddha Hegde &lt;<a href=3D"mailto:shraddh=
a@juniper.net" target=3D"_blank">shraddha@juniper.net</a>&gt;, Pushpasis Sarka=
r &lt;<a href=3D"mailto:pushpasis.ietf@gmail.com" target=3D"_blank">pushpasis.ie=
tf@gmail.com</a>&gt;, Hannes Gredler &lt;<a href=3D"mailto:hannes@gredler.at" =
target=3D"_blank">hannes@gredler.at</a>&gt;, &lt;<a href=3D"mailto:mnanduri@ebay=
.com" target=3D"_blank">mnanduri@ebay.com</a>&gt;, Luay Jalil &lt;<a href=3D"mai=
lto:luay.jalil@verizon.com" target=3D"_blank">luay.jalil@verizon.com</a>&gt;, =
Acee Lindem &lt;<a href=3D"mailto:acee@cisco.com" target=3D"_blank">acee@cisco.c=
om</a>&gt;, &lt;<a href=3D"mailto:akr@cisco.com" target=3D"_blank">akr@cisco.com=
</a>&gt;, Alvaro Retana &lt;<a href=3D"mailto:aretana.ietf@gmail.com" target=3D"=
_blank">aretana.ietf@gmail.com</a>&gt;, Deborah Brungard &lt;<a href=3D"mailto=
:db3546@att.com" target=3D"_blank">db3546@att.com</a>&gt;, Alia Atlas &lt;<a h=
ref=3D"mailto:akatlas@gmail.com" target=3D"_blank">akatlas@gmail.com</a>&gt;, Ac=
ee Lindem &lt;<a href=3D"mailto:acee@cisco.com" target=3D"_blank">acee@cisco.com=
</a>&gt;<br><b>Resent-Date: </b>Monday, January 8, 2018 at 12:22 PM<o:p></o:=
p></span></p></div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;col=
or:black'><o:p>&nbsp;</o:p></span></p></div><blockquote style=3D'border:none;b=
order-left:solid #B5C4DF 4.5pt;padding:0in 0in 0in 4.0pt;margin-left:3.75pt;=
margin-right:0in' id=3D"m_6101061088303071819MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOT=
E"><div><div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;color:bla=
ck'>Hi Joel et al, <o:p></o:p></span></p><div><p class=3DMsoNormal><span style=
=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div><div><p cl=
ass=3DMsoNormal><span style=3D'font-size:10.5pt;color:black'>+1 for 'graceful-li=
nk-shutdown'.<o:p></o:p></span></p></div></div></div></div></blockquote><div=
><p class=3DMsoNormal><span style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</=
o:p></span></p></div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;c=
olor:black'>I think we are converging on this. I must admit that it is much =
better than =E2=80=9Clink-overload=E2=80=9D. Although Les raises a good point that this =
behavior could be used for other use cases, subsequent discussions have indi=
cated that these could be handled differently.&nbsp;<o:p></o:p></span></p></=
div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;color:black'><o:p>=
&nbsp;</o:p></span></p></div><div><p class=3DMsoNormal><span style=3D'font-size:=
10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div><blockquote style=3D'bor=
der:none;border-left:solid #B5C4DF 4.5pt;padding:0in 0in 0in 4.0pt;margin-le=
ft:3.75pt;margin-right:0in' id=3D"m_6101061088303071819MAC_OUTLOOK_ATTRIBUTION=
_BLOCKQUOTE"><div><div><div><div><p class=3DMsoNormal><span style=3D'font-size:1=
0.5pt;color:black'>Another possibility may be 'link-decommission'..&nbsp;<o:=
p></o:p></span></p></div></div></div></div></blockquote><div><p class=3DMsoNor=
mal><span style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p><=
/div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;color:black'>This=
 implies too much permanence. If you decommission something, you are more or=
 less retiring It which is not this use case. This is more of giving the lin=
k a rest. Maybe we could use the there term =E2=80=9CLink on Leave=E2=80=9D or LOL state=
 ;^). &nbsp;<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span style=3D=
'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div><div><p cla=
ss=3DMsoNormal><span style=3D'font-size:10.5pt;color:black'>Thanks,<o:p></o:p></=
span></p></div><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;color:b=
lack'>Acee<o:p></o:p></span></p></div><div><div><div><p class=3DMsoNormal><spa=
n style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div><bl=
ockquote style=3D'border:none;border-left:solid #B5C4DF 4.5pt;padding:0in 0in =
0in 4.0pt;margin-left:3.75pt;margin-right:0in' id=3D"m_6101061088303071819MAC_=
OUTLOOK_ATTRIBUTION_BLOCKQUOTE"><div><div><div><div><div><p class=3DMsoNormal>=
<span style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p></div=
><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;color:black'>Thanks a=
nd regards<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span style=3D'f=
ont-size:10.5pt;color:black'>-Pushpasis<o:p></o:p></span></p></div></div></d=
iv><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;color:black'><o:p>&=
nbsp;</o:p></span></p><div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;=
color:black'>On Mon, Jan 8, 2018 at 7:09 PM, &lt;<a href=3D"mailto:bruno.decra=
ene@orange.com" target=3D"_blank">bruno.decraene@orange.com</a>&gt; wrote:<o:p=
></o:p></span></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'><div><div=
><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:aut=
o'><span lang=3DFR style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;colo=
r:black'>&nbsp;</span><span lang=3DFR style=3D'color:black'><o:p></o:p></span></=
p><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:au=
to'><span lang=3DFR style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;col=
or:black'>&nbsp;</span><span lang=3DFR style=3D'color:black'><o:p></o:p></span><=
/p><div style=3D'border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt'><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;margin-bottom:12.0p=
t'><b><span style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif;color:bl=
ack'>From:</span></b><span style=3D'font-size:10.0pt;font-family:"Tahoma",sans=
-serif;color:black'> Shraddha Hegde</span><span lang=3DFR 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 style=3D'color:#1F497D'>How about =E2=80=9Cgraceful-li=
nk-shutdown=E2=80=9D ?</span><span lang=3DFR style=3D'color:black'><o:p></o:p></span><=
/p><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:a=
uto'><span style=3D'color:black'>&nbsp;</span><span lang=3DFR style=3D'color:black=
'><o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;ms=
o-margin-bottom-alt:auto'><span style=3D'font-size:10.0pt;font-family:"Arial",=
sans-serif;color:black'>Looks good to me.</span><span lang=3DFR style=3D'color:b=
lack'><o:p></o:p></span></p><pre><span style=3D'font-family:"Arial",sans-serif=
;color:black'>Also, FYI, for BGP sessions, in the GROW WG we used the term =E2=
=80=9CGraceful BGP session shutdown=E2=80=9D and named the BGP community =E2=80=9C</span><sp=
an style=3D'color:black'>GRACEFUL_SHUTDOWN</span><span style=3D'font-family:"Ari=
al",sans-serif;color:black'>=E2=80=9D so this would align on the terminology.</spa=
n><span lang=3DFR style=3D'color:black'><o:p></o:p></span></pre><p class=3DMsoNorm=
al style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style=3D'f=
ont-size:10.0pt;font-family:"Arial",sans-serif;color:black'><a href=3D"https:/=
/tools.ietf.org/html/draft-ietf-grow-bgp-gshut-13" target=3D"_blank">https://t=
ools.ietf.org/html/draft-ietf-grow-bgp-gshut-13</a></span><span lang=3DFR styl=
e=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-margin-t=
op-alt:auto;mso-margin-bottom-alt:auto'><span style=3D'font-size:10.0pt;font-f=
amily:"Arial",sans-serif;color:black'>&nbsp;</span><span lang=3DFR style=3D'colo=
r:black'><o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-margin-top-alt:=
auto;mso-margin-bottom-alt:auto'><span style=3D'font-size:10.0pt;font-family:"=
Arial",sans-serif;color:black'>Best regards,</span><span lang=3DFR style=3D'colo=
r:black'><o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-margin-top-alt:=
auto;mso-margin-bottom-alt:auto'><span style=3D'font-size:10.0pt;font-family:"=
Arial",sans-serif;color:black'>--Bruno</span><span lang=3DFR style=3D'color:blac=
k'><o:p></o:p></span></p><div><div><p class=3DMsoNormal style=3D'mso-margin-top-=
alt:auto;mso-margin-bottom-alt:auto'><span style=3D'font-size:10.0pt;font-fami=
ly:"Arial",sans-serif;color:black'>&nbsp;</span><span lang=3DFR style=3D'color:b=
lack'><o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-margin-top-alt:aut=
o;mso-margin-bottom-alt:auto'><span style=3D'font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black'>&nbsp;</span><span lang=3DFR style=3D'color:black'><=
o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-m=
argin-bottom-alt:auto'><span style=3D'color:#1F497D'>Rgds</span><span lang=3DFR =
style=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-marg=
in-top-alt:auto;mso-margin-bottom-alt:auto'><span style=3D'color:#1F497D'>Shra=
ddha</span><span lang=3DFR style=3D'color:black'><o:p></o:p></span></p><p class=3D=
MsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span s=
tyle=3D'color:#1F497D'>&nbsp;</span><span lang=3DFR style=3D'color:black'><o:p></o=
:p></span></p><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-b=
ottom-alt:auto'><span style=3D'color:#1F497D'>&nbsp;</span><span lang=3DFR style=
=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-margin-to=
p-alt:auto;mso-margin-bottom-alt:auto'><span style=3D'color:#1F497D'>&nbsp;</s=
pan><span lang=3DFR style=3D'color:black'><o:p></o:p></span></p><div><div style=3D=
'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p cl=
ass=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>=
<span style=3D'color:black'>From:</span></b><span style=3D'color:black'> Acee Li=
ndem (acee) [<a href=3D"mailto:acee@cisco.com" target=3D"_blank">mailto:acee@cis=
co.com</a>] <br><b>Sent:</b> Friday, January 5, 2018 6:50 PM<br><b>To:</b> L=
es Ginsberg (ginsberg) &lt;<a href=3D"mailto:ginsberg@cisco.com" target=3D"_blan=
k">ginsberg@cisco.com</a>&gt;; Ketan Talaulikar (ketant) &lt;<a href=3D"mailto=
:ketant@cisco.com" target=3D"_blank">ketant@cisco.com</a>&gt;; Joel Halpern &l=
t;<a href=3D"mailto:jmh@joelhalpern.com" target=3D"_blank">jmh@joelhalpern.com</=
a>&gt;; <a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org</=
a><br><b>Cc:</b> <a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf@ietf.or=
g</a>; <a href=3D"mailto:ietf@ietf.org" target=3D"_blank">ietf@ietf.org</a>; <a =
href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf.org" target=3D"_blank">dra=
ft-ietf-ospf-link-overload.all@ietf.org</a><br><b>Subject:</b> Re: Genart la=
st call review of draft-ietf-ospf-link-overload-11</span><span lang=3DFR style=
=3D'color:black'><o:p></o:p></span></p></div></div><p class=3DMsoNormal style=3D'm=
so-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style=3D'color:black'=
>&nbsp;</span><span lang=3DFR style=3D'color:black'><o:p></o:p></span></p><div><=
p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'=
><span style=3D'font-size:10.5pt;color:black'>It is not in =E2=80=9Cmaintenance&quot=
; mode yet as it is still being used. However, it is better than =E2=80=9Coverload=
=E2=80=9D. =E2=80=9Cpending-maintenance=E2=80=9D is a bit long which is why I suggested =E2=80=9Cpen=
ding-shutdown=E2=80=9D since =E2=80=9Cshutdown=E2=80=9D is term that vendors have used for eon=
s to described an interface that is not in service.</span><span lang=3DFR styl=
e=3D'color:black'><o:p></o:p></span></p></div><div><p class=3DMsoNormal style=3D'm=
so-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style=3D'font-size:10=
.5pt;color:black'>Thanks,</span><span lang=3DFR style=3D'color:black'><o:p></o:p=
></span></p></div><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso=
-margin-bottom-alt:auto'><span style=3D'font-size:10.5pt;color:black'>Acee&nbs=
p;</span><span lang=3DFR style=3D'color:black'><o:p></o:p></span></p></div><div>=
<p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto=
'><span style=3D'font-size:10.5pt;color:black'>&nbsp;</span><span lang=3DFR styl=
e=3D'color:black'><o:p></o:p></span></p></div><div style=3D'border:none;border-t=
op:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal style=3D'=
mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style=3D'color:bl=
ack'>From: </span></b><span style=3D'color:black'>&quot;Les Ginsberg (ginsberg=
)&quot; &lt;<a href=3D"mailto:ginsberg@cisco.com" target=3D"_blank">ginsberg@cis=
co.com</a>&gt;<br><b>Date: </b>Thursday, January 4, 2018 at 11:56 PM<br><b>T=
o: </b>&quot;Ketan Talaulikar (ketant)&quot; &lt;<a href=3D"mailto:ketant@cisc=
o.com" target=3D"_blank">ketant@cisco.com</a>&gt;, Acee Lindem &lt;<a href=3D"ma=
ilto:acee@cisco.com" target=3D"_blank">acee@cisco.com</a>&gt;, &quot;Joel M. H=
alpern&quot; &lt;<a href=3D"mailto:jmh@joelhalpern.com" target=3D"_blank">jmh@jo=
elhalpern.com</a>&gt;, &quot;<a href=3D"mailto:gen-art@ietf.org" target=3D"_blan=
k">gen-art@ietf.org</a>&quot; &lt;<a href=3D"mailto:gen-art@ietf.org" target=3D"=
_blank">gen-art@ietf.org</a>&gt;<br><b>Cc: </b>OSPF WG List &lt;<a href=3D"mai=
lto:ospf@ietf.org" target=3D"_blank">ospf@ietf.org</a>&gt;, &quot;<a href=3D"mai=
lto:ietf@ietf.org" target=3D"_blank">ietf@ietf.org</a>&quot; &lt;<a href=3D"mail=
to:ietf@ietf.org" target=3D"_blank">ietf@ietf.org</a>&gt;, &quot;<a href=3D"mail=
to:draft-ietf-ospf-link-overload.all@ietf.org" target=3D"_blank">draft-ietf-os=
pf-link-overload.all@ietf.org</a>&quot; &lt;<a href=3D"mailto:draft-ietf-ospf-=
link-overload.all@ietf.org" target=3D"_blank">draft-ietf-ospf-link-overload.al=
l@ietf.org</a>&gt;<br><b>Subject: </b>RE: Genart last call review of draft-i=
etf-ospf-link-overload-11</span><span lang=3DFR style=3D'color:black'><o:p></o:p=
></span></p></div><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso=
-margin-bottom-alt:auto'><span style=3D'font-size:10.5pt;color:black'>&nbsp;</=
span><span lang=3DFR style=3D'color:black'><o:p></o:p></span></p></div><blockquo=
te style=3D'border:none;border-left:solid #B5C4DF 4.5pt;padding:0in 0in 0in 4.=
0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt=
' id=3D"m_6101061088303071819m_-6849180046638241106MAC_OUTLOOK_ATTRIBUTION_BLO=
CKQUOTE"><div><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-mar=
gin-bottom-alt:auto'><span style=3D'color:#1F497D'>Ketan =E2=80=93</span><span lang=3D=
FR style=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-m=
argin-top-alt:auto;mso-margin-bottom-alt:auto'><span style=3D'color:#1F497D'>&=
nbsp;</span><span lang=3DFR 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 =
style=3D'color:#1F497D'>=E2=80=9Cmaintenance=E2=80=9D I could live with.</span><span lang=3D=
FR style=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-m=
argin-top-alt:auto;mso-margin-bottom-alt:auto'><span style=3D'color:#1F497D'>&=
nbsp;</span><span lang=3DFR 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 =
style=3D'color:#1F497D'>=E2=80=9CGIR=E2=80=9D seems to not be generic enough.</span><span =
lang=3DFR 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 style=3D'color:#1F49=
7D'>&nbsp;</span><span lang=3DFR 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 style=3D'color:#1F497D'>&nbsp;&nbsp; Les</span><span lang=3DFR style=3D'color=
:black'><o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-margin-top-alt:a=
uto;mso-margin-bottom-alt:auto'><span style=3D'color:#1F497D'>&nbsp;</span><sp=
an lang=3DFR style=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal styl=
e=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style=3D'color:#1=
F497D'>&nbsp;</span><span lang=3DFR style=3D'color:black'><o:p></o:p></span></p>=
<div style=3D'border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0=
pt'><div><div style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0p=
t 0in 0in 0in'><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-=
bottom-alt:auto'><b><span style=3D'color:black'>From:</span></b><span style=3D'c=
olor:black'> Ketan Talaulikar (ketant) <br><b>Sent:</b> Thursday, January 04=
, 2018 8:09 PM<br><b>To:</b> Acee Lindem (acee) &lt;<a href=3D"mailto:acee@cis=
co.com" target=3D"_blank">acee@cisco.com</a>&gt;; Les Ginsberg (ginsberg) &lt;=
<a href=3D"mailto:ginsberg@cisco.com" target=3D"_blank">ginsberg@cisco.com</a>&g=
t;; Joel Halpern &lt;<a href=3D"mailto:jmh@joelhalpern.com" target=3D"_blank">jm=
h@joelhalpern.com</a>&gt;; <a href=3D"mailto:gen-art@ietf.org" target=3D"_blank"=
>gen-art@ietf.org</a><br><b>Cc:</b> <a href=3D"mailto:ospf@ietf.org" target=3D"_=
blank">ospf@ietf.org</a>; <a href=3D"mailto:ietf@ietf.org" target=3D"_blank">iet=
f@ietf.org</a>; <a href=3D"mailto:draft-ietf-ospf-link-overload.all@ietf.org" =
target=3D"_blank">draft-ietf-ospf-link-overload.all@ietf.org</a><br><b>Subject=
:</b> RE: Genart last call review of draft-ietf-ospf-link-overload-11</span>=
<span lang=3DFR style=3D'color:black'><o:p></o:p></span></p></div></div><p class=
=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:black'>&nbsp;</span><span lang=3DFR style=3D'color:black'><o:p></o:=
p></span></p><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bo=
ttom-alt:auto'><span lang=3DEN-IN style=3D'color:#1F497D'>Hello,</span><span lan=
g=3DFR 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-IN style=3D'col=
or:#1F497D'>&nbsp;</span><span lang=3DFR 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-IN style=3D'color:#1F497D'>May I suggest something more g=
eneric like =E2=80=9CMaintenance Mode=E2=80=9D or =E2=80=9CGraceful Insertion/Removal (GIR) Mo=
de=E2=80=9D which could be defined so as to cover the multiple scenarios in questi=
on (e.g. pending shutdown, down for repairs, last resort due to poor link qu=
ality, etc.).</span><span lang=3DFR 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-IN style=3D'color:#1F497D'>&nbsp;</span><span lang=3DFR style=3D'c=
olor:black'><o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-margin-top-a=
lt:auto;mso-margin-bottom-alt:auto'><span lang=3DEN-IN style=3D'color:#1F497D'>T=
hanks,</span><span lang=3DFR style=3D'color:black'><o:p></o:p></span></p><p clas=
s=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span=
 lang=3DEN-IN style=3D'color:#1F497D'>Ketan</span><span lang=3DFR style=3D'color:bla=
ck'><o:p></o:p></span></p><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;=
mso-margin-bottom-alt:auto'><span lang=3DEN-IN style=3D'color:#1F497D'>&nbsp;</s=
pan><span lang=3DFR style=3D'color:black'><o:p></o:p></span></p><div><div style=3D=
'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p cl=
ass=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>=
<span style=3D'color:black'>From:</span></b><span style=3D'color:black'> OSPF [<=
a href=3D"mailto:ospf-bounces@ietf.org" target=3D"_blank">mailto:ospf-bounces@ie=
tf.org</a>] <b>On Behalf Of </b>Acee Lindem (acee)<br><b>Sent:</b> 05 Januar=
y 2018 08:14<br><b>To:</b> Les Ginsberg (ginsberg) &lt;<a href=3D"mailto:ginsb=
erg@cisco.com" target=3D"_blank">ginsberg@cisco.com</a>&gt;; Joel Halpern &lt;=
<a href=3D"mailto:jmh@joelhalpern.com" target=3D"_blank">jmh@joelhalpern.com</a>=
&gt;; <a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">gen-art@ietf.org</a>=
<br><b>Cc:</b> <a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf@ietf.org<=
/a>; <a href=3D"mailto:ietf@ietf.org" target=3D"_blank">ietf@ietf.org</a>; <a hr=
ef=3D"mailto:draft-ietf-ospf-link-overload.all@ietf.org" target=3D"_blank">draft=
-ietf-ospf-link-overload.all@ietf.org</a><br><b>Subject:</b> Re: [OSPF] Gena=
rt last call review of draft-ietf-ospf-link-overload-11</span><span lang=3DFR =
style=3D'color:black'><o:p></o:p></span></p></div></div><p class=3DMsoNormal sty=
le=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=3DEN-IN sty=
le=3D'color:black'>&nbsp;</span><span lang=3DFR style=3D'color:black'><o:p></o:p><=
/span></p><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-=
bottom-alt:auto'><span lang=3DEN-IN style=3D'font-size:10.5pt;color:black'>Hi Le=
s,&nbsp;</span><span lang=3DFR style=3D'color:black'><o:p></o:p></span></p></div=
><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-al=
t:auto'><span lang=3DEN-IN style=3D'font-size:10.5pt;color:black'>&nbsp;</span><=
span lang=3DFR style=3D'color:black'><o:p></o:p></span></p></div><div style=3D'bor=
der:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3D=
MsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><spa=
n lang=3DEN-IN style=3D'color:black'>From: </span></b><span lang=3DEN-IN style=3D'co=
lor:black'>&quot;Les Ginsberg (ginsberg)&quot; &lt;<a href=3D"mailto:ginsberg@=
cisco.com" target=3D"_blank">ginsberg@cisco.com</a>&gt;<br><b>Date: </b>Thursd=
ay, January 4, 2018 at 9:26 PM<br><b>To: </b>Acee Lindem &lt;<a href=3D"mailto=
:acee@cisco.com" target=3D"_blank">acee@cisco.com</a>&gt;, &quot;Joel M. Halpe=
rn&quot; &lt;<a href=3D"mailto:jmh@joelhalpern.com" target=3D"_blank">jmh@joelha=
lpern.com</a>&gt;, &quot;<a href=3D"mailto:gen-art@ietf.org" target=3D"_blank">g=
en-art@ietf.org</a>&quot; &lt;<a href=3D"mailto:gen-art@ietf.org" target=3D"_bla=
nk">gen-art@ietf.org</a>&gt;<br><b>Cc: </b>OSPF WG List &lt;<a href=3D"mailto:=
ospf@ietf.org" target=3D"_blank">ospf@ietf.org</a>&gt;, &quot;<a href=3D"mailto:=
ietf@ietf.org" target=3D"_blank">ietf@ietf.org</a>&quot; &lt;<a href=3D"mailto:i=
etf@ietf.org" target=3D"_blank">ietf@ietf.org</a>&gt;, &quot;<a href=3D"mailto:d=
raft-ietf-ospf-link-overload.all@ietf.org" target=3D"_blank">draft-ietf-ospf-l=
ink-overload.all@ietf.org</a>&quot; &lt;<a href=3D"mailto:draft-ietf-ospf-link=
-overload.all@ietf.org" target=3D"_blank">draft-ietf-ospf-link-overload.all@ie=
tf.org</a>&gt;<br><b>Subject: </b>RE: Genart last call review of draft-ietf-=
ospf-link-overload-11</span><span lang=3DFR style=3D'color:black'><o:p></o:p></s=
pan></p></div><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-mar=
gin-bottom-alt:auto'><span lang=3DEN-IN style=3D'font-size:10.5pt;color:black'>&=
nbsp;</span><span lang=3DFR style=3D'color:black'><o:p></o:p></span></p></div><b=
lockquote style=3D'border:none;border-left:solid #B5C4DF 4.5pt;padding:0in 0in=
 0in 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-botto=
m:5.0pt' id=3D"m_6101061088303071819m_-6849180046638241106MAC_OUTLOOK_ATTRIBUT=
ION_BLOCKQUOTE"><div><div><p class=3Dm6101061088303071819m-6849180046638241106=
msoplaintext><span style=3D'font-size:10.5pt;color:black'>&gt; &gt;Minor issue=
s:</span><span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p></spa=
n></p><p class=3Dm6101061088303071819m-6849180046638241106msoplaintext><span s=
tyle=3D'font-size:10.5pt;color:black'>&gt; &gt;&nbsp;&nbsp;&nbsp; I understand=
 the WG likes using the term &quot;overload&quot; for a link</span><span lan=
g=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm61=
01061088303071819m-6849180046638241106msoplaintext><span style=3D'font-size:10=
.5pt;color:black'>&gt; &gt;being taken</span><span lang=3DFR style=3D'font-size:=
10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm6101061088303071819m-684=
9180046638241106msoplaintext><span style=3D'font-size:10.5pt;color:black'>&gt;=
 &gt;&nbsp;&nbsp;&nbsp; out of service.&nbsp; I think people will learn what=
 we mean.&nbsp; I do wish</span><span lang=3DFR style=3D'font-size:10.5pt;color:=
black'><o:p></o:p></span></p><p class=3Dm6101061088303071819m-6849180046638241=
106msoplaintext><span style=3D'font-size:10.5pt;color:black'>&gt; &gt;we had</=
span><span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p></span></=
p><p class=3Dm6101061088303071819m-6849180046638241106msoplaintext><span style=
=3D'font-size:10.5pt;color:black'>&gt; &gt;&nbsp;&nbsp;&nbsp; not chosen to mi=
suse the words in this fashion.&nbsp; This is much more a</span><span lang=3DF=
R style=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm61010=
61088303071819m-6849180046638241106msoplaintext><span style=3D'font-size:10.5p=
t;color:black'>&gt; &gt;&nbsp;&nbsp;&nbsp; graceful-link-close indication (o=
r clsoe-pending indication) than</span><span lang=3DFR style=3D'font-size:10.5pt=
;color:black'><o:p></o:p></span></p><p class=3Dm6101061088303071819m-684918004=
6638241106msoplaintext><span style=3D'font-size:10.5pt;color:black'>&gt; &gt;i=
t is an</span><span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p>=
</span></p><p class=3Dm6101061088303071819m-6849180046638241106msoplaintext><s=
pan style=3D'font-size:10.5pt;color:black'>&gt; &gt;&nbsp;&nbsp;&nbsp; overloa=
d indication.</span><span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p>=
</o:p></span></p><p class=3Dm6101061088303071819m-6849180046638241106msoplaint=
ext><span style=3D'font-size:10.5pt;color:black'>&gt; </span><span lang=3DFR sty=
le=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm6101061088=
303071819m-6849180046638241106msoplaintext><span style=3D'font-size:10.5pt;col=
or:black'>&gt; I agree with this comment but I wasn=E2=80=99t sure we=E2=80=99d reach co=
nsensus on a</span><span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p><=
/o:p></span></p><p class=3Dm6101061088303071819m-6849180046638241106msoplainte=
xt><span style=3D'font-size:10.5pt;color:black'>&gt; better alternative. Howev=
er, after some though and consideration of current</span><span lang=3DFR style=
=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm610106108830=
3071819m-6849180046638241106msoplaintext><span style=3D'font-size:10.5pt;color=
:black'>&gt; OSPF router terminology, I=E2=80=99d propose we use the term =E2=80=9CPendi=
ng-Shutdown=E2=80=9D.</span><span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:=
p></o:p></span></p><p class=3Dm6101061088303071819m-6849180046638241106msoplai=
ntext><span style=3D'font-size:10.5pt;color:black'>&gt; Does anyone not agree =
that this is a more appropriate moniker for the TLV</span><span lang=3DFR styl=
e=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm61010610883=
03071819m-6849180046638241106msoplaintext><span style=3D'font-size:10.5pt;colo=
r:black'>&gt; and state?</span><span lang=3DFR style=3D'font-size:10.5pt;color:b=
lack'><o:p></o:p></span></p><p class=3Dm6101061088303071819m-68491800466382411=
06msoplaintext><span style=3D'font-size:10.5pt;color:black'>&gt;&nbsp;</span><=
span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p><p c=
lass=3Dm6101061088303071819m-6849180046638241106msoplaintext><span style=3D'font=
-size:10.5pt;color:black'>[Les:] I agree with Joel's comment. The use of the=
 term &quot;overload&quot; is unfortunate.</span><span lang=3DFR style=3D'font-s=
ize:10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm6101061088303071819m=
-6849180046638241106msoplaintext><span style=3D'font-size:10.5pt;color:black'>=
But &quot;pending-shutdown&quot; isn=E2=80=99t appealing to me because - at least =
in most use cases - you aren't actually going to shutdown the link. What you=
 are going to do is make a link the &quot;link of last resort&quot;. </span>=
<span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p><p =
class=3Dm6101061088303071819m-6849180046638241106msoplaintext><span style=3D'fon=
t-size:10.5pt;color:black'>This seems a better choice.</span><span lang=3DFR s=
tyle=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p></div></div></bloc=
kquote><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bot=
tom-alt:auto'><span lang=3DEN-IN style=3D'font-size:10.5pt;color:black'>&nbsp;</=
span><span lang=3DFR style=3D'color:black'><o:p></o:p></span></p></div><div><p c=
lass=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><s=
pan lang=3DEN-IN style=3D'font-size:10.5pt;color:black'>That is not the use case=
 - you are going to take the link down. It is not going to be the &quot;link=
 of last resort=E2=80=9D, it is the currently the =E2=80=9Clink of last resort=E2=80=9D and wi=
ll imminently be taken down.&nbsp;</span><span lang=3DFR style=3D'color:black'><=
o:p></o:p></span></p></div><div><p class=3DMsoNormal style=3D'mso-margin-top-alt=
:auto;mso-margin-bottom-alt:auto'><span lang=3DEN-IN style=3D'font-size:10.5pt;c=
olor:black'>&nbsp;</span><span lang=3DFR style=3D'color:black'><o:p></o:p></span=
></p></div><blockquote style=3D'border:none;border-left:solid #B5C4DF 4.5pt;pa=
dding:0in 0in 0in 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0in=
;margin-bottom:5.0pt' id=3D"m_6101061088303071819m_-6849180046638241106MAC_OUT=
LOOK_ATTRIBUTION_BLOCKQUOTE"><div><div><p class=3Dm6101061088303071819m-684918=
0046638241106msoplaintext><span style=3D'font-size:10.5pt;color:black'>&nbsp;<=
/span><span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p></span><=
/p><p class=3Dm6101061088303071819m-6849180046638241106msoplaintext><span styl=
e=3D'font-size:10.5pt;color:black'>The suggestion from Shraddha that this term=
 was borrowed from IS-IS isn't accurate. &quot;overload&quot; in IS-IS has a=
 very different meaning - it indicates a node either has an incomplete LSDB =
or (a la <a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__datat=
racker.ietf.org_doc_rfc3277_&amp;d=3DDwMGaQ&amp;c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-=
ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&amp;m=3D7GM8=
zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU&amp;s=3D769ndBiWrwubwBNccNtOnDuHr1yMD-=
W10WuEarCDNgI&amp;e=3D" target=3D"_blank">RFC 3277</a> )an incomplete forwarding=
 plane.</span><span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p>=
</span></p><p class=3Dm6101061088303071819m-6849180046638241106msoplaintext><s=
pan style=3D'font-size:10.5pt;color:black'>&nbsp;</span><span lang=3DFR style=3D'f=
ont-size:10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm610106108830307=
1819m-6849180046638241106msoplaintext><span style=3D'font-size:10.5pt;color:bl=
ack'>The only use of &quot;link overload&quot; in IS-IS occurs in <a href=3D"h=
ttps://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.ietf.org_html_draf=
t-2Dietf-2Disis-2Dreverse-2Dmetric-2D07-23section-2D3.6&amp;d=3DDwMGaQ&amp;c=3DH=
AkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMX=
J31bpbBaNqzCNrng&amp;m=3D7GM8zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU&amp;s=3Dr_8=
muG61-ePlkCbqf7qIcHUPHGtjWf_JOH1UXH7lp8U&amp;e=3D" target=3D"_blank">https://too=
ls.ietf.org/html/draft-ietf-isis-reverse-metric-07#section-3.6</a> and this =
was added recently to support the (very useful) TE use case which was define=
d in <a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.iet=
f.org_html_draft-2Dietf-2Dospf-2Dlink-2Doverload-2D11&amp;d=3DDwMGaQ&amp;c=3DHAk=
Yuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ3=
1bpbBaNqzCNrng&amp;m=3D7GM8zN1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU&amp;s=3DumZHm=
gXp6i4i0PAyZbsDS0iorBurDZsFIyvaVVXEHb0&amp;e=3D" target=3D"_blank">https://tools=
.ietf.org/html/draft-ietf-ospf-link-overload-11</a> . When this was done the=
 term &quot;link-overload&quot; was cut and pasted from the OSPF draft. I th=
ink this should also be changed in the IS-IS draft.</span><span lang=3DFR styl=
e=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p></div></div></blockqu=
ote><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom=
-alt:auto'><span lang=3DEN-IN style=3D'font-size:10.5pt;color:black'>&nbsp;</spa=
n><span lang=3DFR style=3D'color:black'><o:p></o:p></span></p></div><div><p clas=
s=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span=
 lang=3DEN-IN style=3D'font-size:10.5pt;color:black'>Agreed.&nbsp;</span><span l=
ang=3DFR style=3D'color:black'><o:p></o:p></span></p></div><div><p class=3DMsoNorm=
al style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=3DEN-=
IN style=3D'font-size:10.5pt;color:black'>&nbsp;</span><span lang=3DFR style=3D'co=
lor:black'><o:p></o:p></span></p></div><div><p class=3DMsoNormal style=3D'mso-ma=
rgin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=3DEN-IN style=3D'font-s=
ize:10.5pt;color:black'>Thanks,</span><span lang=3DFR style=3D'color:black'><o:p=
></o:p></span></p></div><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:au=
to;mso-margin-bottom-alt:auto'><span lang=3DEN-IN style=3D'font-size:10.5pt;colo=
r:black'>Acee&nbsp;</span><span lang=3DFR style=3D'color:black'><o:p></o:p></spa=
n></p></div><blockquote style=3D'border:none;border-left:solid #B5C4DF 4.5pt;p=
adding:0in 0in 0in 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0i=
n;margin-bottom:5.0pt' id=3D"m_6101061088303071819m_-6849180046638241106MAC_OU=
TLOOK_ATTRIBUTION_BLOCKQUOTE"><div><div><p class=3Dm6101061088303071819m-68491=
80046638241106msoplaintext><span style=3D'font-size:10.5pt;color:black'>&nbsp;=
</span><span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p></span>=
</p><p class=3Dm6101061088303071819m-6849180046638241106msoplaintext><span sty=
le=3D'font-size:10.5pt;color:black'>&nbsp;&nbsp; Les</span><span lang=3DFR style=
=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm610106108830=
3071819m-6849180046638241106msoplaintext><span style=3D'font-size:10.5pt;color=
:black'>&nbsp;</span><span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p=
></o:p></span></p><p class=3Dm6101061088303071819m-6849180046638241106msoplain=
text><span style=3D'font-size:10.5pt;color:black'>&gt; Thanks,</span><span lan=
g=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm61=
01061088303071819m-6849180046638241106msoplaintext><span style=3D'font-size:10=
.5pt;color:black'>&gt; Acee</span><span lang=3DFR style=3D'font-size:10.5pt;colo=
r:black'><o:p></o:p></span></p><p class=3Dm6101061088303071819m-68491800466382=
41106msoplaintext><span style=3D'font-size:10.5pt;color:black'>&gt; &gt;</span=
><span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p><p=
 class=3Dm6101061088303071819m-6849180046638241106msoplaintext><span style=3D'fo=
nt-size:10.5pt;color:black'>&gt; &gt;</span><span lang=3DFR style=3D'font-size:1=
0.5pt;color:black'><o:p></o:p></span></p><p class=3Dm6101061088303071819m-6849=
180046638241106msoplaintext><span style=3D'font-size:10.5pt;color:black'>&gt; =
&gt;</span><span lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p></s=
pan></p><p class=3Dm6101061088303071819m-6849180046638241106msoplaintext><span=
 style=3D'font-size:10.5pt;color:black'>&gt; </span><span lang=3DFR style=3D'font-=
size:10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm6101061088303071819=
m-6849180046638241106msoplaintext><span style=3D'font-size:10.5pt;color:black'=
>&gt; _______________________________________________</span><span lang=3DFR st=
yle=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm610106108=
8303071819m-6849180046638241106msoplaintext><span style=3D'font-size:10.5pt;co=
lor:black'>&gt; OSPF mailing list</span><span lang=3DFR style=3D'font-size:10.5p=
t;color:black'><o:p></o:p></span></p><p class=3Dm6101061088303071819m-68491800=
46638241106msoplaintext><span style=3D'font-size:10.5pt;color:black'>&gt; <a h=
ref=3D"mailto:OSPF@ietf.org" target=3D"_blank"><span style=3D'color:windowtext;tex=
t-decoration:none'>OSPF@ietf.org</span></a></span><span lang=3DFR style=3D'font-=
size:10.5pt;color:black'><o:p></o:p></span></p><p class=3Dm6101061088303071819=
m-6849180046638241106msoplaintext><span style=3D'font-size:10.5pt;color:black'=
>&gt; <a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.ietf=
.org_mailman_listinfo_ospf&amp;d=3DDwMGaQ&amp;c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-nd=
b3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&amp;m=3D7GM8zN=
1-Ff2au_agmHAkiNYK2R5Aji-EjpyT8gmgRYU&amp;s=3DN51dsQzqzgGoBY61VJtqkgGHlrNjgZT_=
-9g8G_pcOyE&amp;e=3D" target=3D"_blank"><span style=3D'color:windowtext;text-decor=
ation:none'>https://www.ietf.org/mailman/listinfo/ospf</span></a></span><spa=
n lang=3DFR style=3D'font-size:10.5pt;color:black'><o:p></o:p></span></p></div><=
/div></blockquote></div></div></div></blockquote></div></div></div></div><pr=
e><span lang=3DFR style=3D'color:black'>________________________________________=
____________________________________________________________________________=
_____<o:p></o:p></span></pre><pre><span lang=3DFR style=3D'color:black'><o:p>&nb=
sp;</o:p></span></pre><pre><span lang=3DFR style=3D'color:black'>Ce message et s=
es pieces jointes peuvent contenir des informations confidentielles ou privi=
legiees et ne doivent donc<o:p></o:p></span></pre><pre><span lang=3DFR style=3D'=
color:black'>pas etre diffuses, exploites ou copies sans autorisation. Si vo=
us avez recu ce message par erreur, veuillez le signaler<o:p></o:p></span></=
pre><pre><span lang=3DFR style=3D'color:black'>a l'expediteur et le detruire ain=
si que les pieces jointes. Les messages electroniques etant susceptibles d'a=
lteration,<o:p></o:p></span></pre><pre><span lang=3DFR style=3D'color:black'>Ora=
nge decline toute responsabilite si ce message a ete altere, deforme ou fals=
ifie. Merci.<o:p></o:p></span></pre><pre><span lang=3DFR style=3D'color:black'><=
o:p>&nbsp;</o:p></span></pre><pre><span lang=3DFR style=3D'color:black'>This mes=
sage and its attachments may contain confidential or privileged information =
that may be protected by law;<o:p></o:p></span></pre><pre><span lang=3DFR styl=
e=3D'color:black'>they should not be distributed, used or copied without autho=
risation.<o:p></o:p></span></pre><pre><span lang=3DFR style=3D'color:black'>If y=
ou have received this email in error, please notify the sender and delete th=
is message and its attachments.<o:p></o:p></span></pre><pre><span lang=3DFR st=
yle=3D'color:black'>As emails may be altered, Orange is not liable for message=
s that have been modified, changed or falsified.<o:p></o:p></span></pre><pre=
><span lang=3DFR style=3D'color:black'>Thank you.<o:p></o:p></span></pre></div><=
/blockquote></div><p class=3DMsoNormal><span style=3D'font-size:10.5pt;color:bla=
ck'><o:p>&nbsp;</o:p></span></p></div></div></div></blockquote></div></div><=
/div></blockquote></div><p class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><p cla=
ss=3DMsoNormal>_______________________________________________ OSPF mailing li=
st OSPF@ietf.org https://www.ietf.org/mailman/listinfo/ospf <o:p></o:p></p><=
/div></body></html>

--B_3598509292_1071848891--



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From: Shraddha Hegde <shraddha@juniper.net>
To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, Pushpasis Sarkar <pushpasis.ietf@gmail.com>, Bruno Decraene <bruno.decraene@orange.com>
CC: "Acee Lindem (acee)" <acee@cisco.com>, "Ketan Talaulikar (ketant)" <ketant@cisco.com>, Joel Halpern <jmh@joelhalpern.com>, "gen-art@ietf.org" <gen-art@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
Thread-Topic: Genart last call review of draft-ietf-ospf-link-overload-11
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/1fruykIbwQm2yN6rBDAitOoqb_k>
Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-link-overload-11
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From: Shraddha Hegde <shraddha@juniper.net>
To: "Acee Lindem (acee)" <acee@cisco.com>
CC: OSPF WG List <ospf@ietf.org>
Thread-Topic: OSPF Link Overload (aka, Graceful Link Shutdown) MAX-TE-METRIC 
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Subject: Re: [OSPF] OSPF Link Overload (aka, Graceful Link Shutdown) MAX-TE-METRIC
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Shraddha Hegde <shraddha@juniper.net>
CC: OSPF WG List <ospf@ietf.org>
Thread-Topic: OSPF Link Overload (aka, Graceful Link Shutdown) MAX-TE-METRIC 
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Date: Fri, 12 Jan 2018 14:40:16 +0000
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Subject: Re: [OSPF] OSPF Link Overload (aka, Graceful Link Shutdown) MAX-TE-METRIC
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--_000_D67E3113EAE17aceeciscocom_--


From nobody Fri Jan 12 17:27:54 2018
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From: Joel Halpern <jmh@joelhalpern.com>
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Subject: [OSPF] Genart last call review of draft-ietf-ospf-ospfv3-lsa-extend-20
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Reviewer: Joel Halpern
Review result: Ready

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.

For more information, please see the FAQ at

<https://trac.ietf.org/trac/gen/wiki/GenArtfaq>.

Document: draft-ietf-ospf-ospfv3-lsa-extend-20
Reviewer: Joel Halpern
Review Date: 2018-01-12
IETF LC End Date: 2018-01-11
IESG Telechat date: 2018-01-25

Summary: This document is ready for publication as a Proposed Standard RFC

Major issues: N/A

Minor issues: N/A

Nits/editorial comments:  N/A



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To: "ospf@ietf.org" <ospf@ietf.org>, isis@ietf.org
From: Benoit Claise <bclaise@cisco.com>
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Subject: [OSPF] Fwd: YANG modules publication: what to focus on next?
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Dear all,

So that you know that draft-ietf-ospf-yang and 
draft-ietf-isis-yang-isis-cfg are bottlenecks to publish many YANG 
modules. Please progress them asap.

Regards, Benoit


-------- Forwarded Message --------
Subject: 	YANG modules publication: what to focus on next?
Date: 	Tue, 16 Jan 2018 12:27:01 +0100
From: 	Benoit Claise <bclaise@cisco.com>
To: 	NETMOD Working Group <netmod@ietf.org>



Dear all,

At the last IETF meeting, Alia, Deborah and I looked at the publication 
status of most YANG modules.
Since that time, I've been keeping a summary of the situation. Let me 
share it with everybody.

Before publishing YANG modules, we have two series of bottlenecks:
- the YANG module import (shown by tooling below)
- the normative references (MISSREF in the RFC editor queue 
<https://www.rfc-editor.org/current_queue.php>)
   Note that draft-ietf-netmod-revised-datastores, a normative reference 
for many YANG modules,
   was just approved. Good news!

We now have many YANG modules in RFC editor queue:
***draft-ietf-lime-yang-connectionless-oam-18 
<https://datatracker.ietf.org/doc/draft-ietf-lime-yang-connectionless-oam>**
****draft-ietf-lime-yang-connectionless-oam-methods-13 
<https://datatracker.ietf.org/doc/draft-ietf-lime-yang-connectionless-oam-methods>**
****draft-ietf-i2rs-yang-l3-topology-16 
<https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l3-topology>**
****draft-ietf-i2rs-yang-network-topo-20 
<https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-network-topo>**
****draft-wu-l3sm-rfc8049bis-11 
<https://datatracker.ietf.org/doc/draft-wu-l3sm-rfc8049bis>****
**draft-ietf-netconf-rfc6536bis-09 
<https://datatracker.ietf.org/doc/draft-ietf-netconf-rfc6536bis>
*draft-ietf-netmod-rfc7223bis-03 
<https://datatracker.ietf.org/doc/draft-ietf-netmod-rfc7223bis/>
draft-ietf-netmod-rfc7277bis-03 
<https://datatracker.ietf.org/doc/draft-ietf-netmod-rfc7277bis/>
draft-ietf-rtgwg-yang-vrrp-09 
<https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/>
draft-ietf-rtgwg-yang-rip-08 
<https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-rip/>
draft-ietf-netmod-revised-datastores-10 
<https://datatracker.ietf.org/doc/draft-ietf-netmod-revised-datastores/>

Here are the YANG module dependencies 
<https://www.yangcatalog.org/yang-search/impact_analysis.php?modules[]=ietf-ip&modules[]=ietf-connectionless-oam&modules[]=ietf-lime-time-types&modules[]=ietf-connectionless-oam-methods&modules[]=ietf-l3-unicast-topology&modules[]=ietf-l3-unicast-topology-state&modules[]=ietf-network-topology&modules[]=ietf-network-topology-state&modules[]=ietf-network&modules[]=ietf-network-state&modules[]=ietf-l3vpn-svc&modules[]=ietf-netconf-acm&modules[]=ietf-interfaces&modules[]=ietf-vrrp&modules[]=ietf-rip&modules[]=ietf-datastores&modules[]=ietf-origin&recurse=1&rfcs=1&show_subm=1&show_dir=dependencies> 
for these RFC editor modules, as requirement before publishing.

Some more YANG modules are on the IESG table:
     draft-ietf-pim-yang has a DISCUSS (Jan 11th IESG telechat)
     draft-ietf-netmod-rfc8022bis is on the Jan 25th IESG telechat
     draft-ietf-netmod-entity is on the Jan 25th IESG telechat

Assuming those are in the RFC editor queue, this is the new set of YANG 
module dependencies 
<https://www.yangcatalog.org/yang-search/impact_analysis.php?modules[]=ietf-ip&modules[]=ietf-connectionless-oam&modules[]=ietf-lime-time-types&modules[]=ietf-connectionless-oam-methods&modules[]=ietf-l3-unicast-topology&modules[]=ietf-l3-unicast-topology-state&modules[]=ietf-network-topology&modules[]=ietf-network-topology-state&modules[]=ietf-network&modules[]=ietf-network-state&modules[]=ietf-l3vpn-svc&modules[]=ietf-netconf-acm&modules[]=ietf-interfaces&modules[]=ietf-vrrp&modules[]=ietf-rip&modules[]=ietf-pim-dm&modules[]=ietf-pim-base&modules[]=ietf-pim-sm&modules[]=ietf-pim-bidir&modules[]=ietf-pim-rp&modules[]=ietf-routing&modules[]=ietf-ipv6-router-advertisements&modules[]=ietf-ipv4-unicast-routing&modules[]=ietf-ipv6-unicast-routing&modules[]=ietf-entity&modules[]=ietf-datastores&modules[]=ietf-origin&recurse=1&rfcs=1&show_subm=1&show_dir=dependencies>.
It takes a little bit of re-arrangering the elements, but all the 
information is there.

The next bottlenecks for publishing those YANG modules are:
     draft-ietf-netmod-schema-mount
     draft-ietf-rtgwg-ni-model
     ietf-bfd-yang
     draft-ietf-ospf-yang
     draft-ietf-isis-yang-isis-cfg
Please progress those documents asap

Some more updates below.

_NI, LNE, and schema mount, RFC7895bis, schema mount:_
     draft-ietf-rtgwg-lne-model
         Status: Publication requested, Alia's AD review
     draft-ietf-rtgwg-ni-model
         Status: Publication requested, Alia's AD review
     draft-ietf-netmod-schema-mount:
         Status:  WG LC closed, not sure on the next steps ...
     draft-ietf-netconf-rfc7895bis
         Status not clear...

_LIME:_
draft-ietf-lime-yang-connection-oriented-oam-model-00
         Status: Benoit to perform the AD review.

Regards, Benoit

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From nobody Tue Jan 16 22:21:26 2018
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Subject: [OSPF] I-D Action: draft-ietf-ospf-link-overload-12.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Open Shortest Path First IGP WG of the IETF.

        Title           : OSPF Graceful Link shutdown
        Authors         : Shraddha Hegde
                          Pushpasis Sarkar
                          Hannes Gredler
                          Mohan Nanduri
                          Luay Jalil
	Filename        : draft-ietf-ospf-link-overload-12.txt
	Pages           : 16
	Date            : 2018-01-16

Abstract:
   When a link is being prepared to be taken out of service, the traffic
   needs to be diverted from both ends of the link.  Increasing the
   metric to the highest value on one side of the link is not sufficient
   to divert the traffic flowing in the other direction.

   It is useful for routers in an OSPFv2 or OSPFv3 routing domain to be
   able to advertise a link as being in a graceful-shutdown state to
   indicate impending maintenance activity on the link.  This
   information can be used by the network devices to re-route the
   traffic effectively.

   This document describes the protocol extensions to disseminate
   graceful-link-shutdown information in OSPFv2 and OSPFv3.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-link-overload/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-link-overload-12
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-link-overload-12

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-link-overload-12


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

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


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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/0vWvbi1-GqcR0PICbMrVUNCuVzQ>
Subject: Re: [OSPF] Fwd: YANG modules publication: what to focus on next?
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Acee

Looking at draft-ietf-ospf-yang, I see that it Normatively references
[RFC6020] (but not RFC7950), the soon-to-be-obsoleted  [RFC7223]
and [RFC8022]  while revised-datastores is only a Informative reference.

Do you plan on changing any of this?.

I note that the import statements do not specify a revision date.

Tom Petch


----- Original Message -----
From: "Benoit Claise" <bclaise@cisco.com>
To: <ospf@ietf.org>; <isis@ietf.org>
Sent: Tuesday, January 16, 2018 11:30 AM

> Dear all,
>
> So that you know that draft-ietf-ospf-yang and
> draft-ietf-isis-yang-isis-cfg are bottlenecks to publish many YANG
> modules. Please progress them asap.
>
> Regards, Benoit
>
>
> -------- Forwarded Message --------
> Subject: YANG modules publication: what to focus on next?
> Date: Tue, 16 Jan 2018 12:27:01 +0100
> From: Benoit Claise <bclaise@cisco.com>
> To: NETMOD Working Group <netmod@ietf.org>
>
>
>
> Dear all,
>
> At the last IETF meeting, Alia, Deborah and I looked at the
publication
> status of most YANG modules.
> Since that time, I've been keeping a summary of the situation. Let me
> share it with everybody.
>
> Before publishing YANG modules, we have two series of bottlenecks:
> - the YANG module import (shown by tooling below)
> - the normative references (MISSREF in the RFC editor queue
> <https://www.rfc-editor.org/current_queue.php>)
>   Note that draft-ietf-netmod-revised-datastores, a normative
reference
> for many YANG modules,
>   was just approved. Good news!
>
> We now have many YANG modules in RFC editor queue:
> ***draft-ietf-lime-yang-connectionless-oam-18
>
<https://datatracker.ietf.org/doc/draft-ietf-lime-yang-connectionless-oa
m>**
> ****draft-ietf-lime-yang-connectionless-oam-methods-13
>
<https://datatracker.ietf.org/doc/draft-ietf-lime-yang-connectionless-oa
m-methods>**
> ****draft-ietf-i2rs-yang-l3-topology-16
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l3-topology>**
> ****draft-ietf-i2rs-yang-network-topo-20
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-network-topo>**
> ****draft-wu-l3sm-rfc8049bis-11
> <https://datatracker.ietf.org/doc/draft-wu-l3sm-rfc8049bis>****
> **draft-ietf-netconf-rfc6536bis-09
> <https://datatracker.ietf.org/doc/draft-ietf-netconf-rfc6536bis>
> *draft-ietf-netmod-rfc7223bis-03
> <https://datatracker.ietf.org/doc/draft-ietf-netmod-rfc7223bis/>
> draft-ietf-netmod-rfc7277bis-03
> <https://datatracker.ietf.org/doc/draft-ietf-netmod-rfc7277bis/>
> draft-ietf-rtgwg-yang-vrrp-09
> <https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/>
> draft-ietf-rtgwg-yang-rip-08
> <https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-rip/>
> draft-ietf-netmod-revised-datastores-10
>
<https://datatracker.ietf.org/doc/draft-ietf-netmod-revised-datastores/>
>
> Here are the YANG module dependencies
>
<https://www.yangcatalog.org/yang-search/impact_analysis.php?modules[]=i
etf-ip&modules[]=ietf-connectionless-oam&modules[]=ietf-lime-time-types&
modules[]=ietf-connectionless-oam-methods&modules[]=ietf-l3-unicast-topo
logy&modules[]=ietf-l3-unicast-topology-state&modules[]=ietf-network-top
ology&modules[]=ietf-network-topology-state&modules[]=ietf-network&modul
es[]=ietf-network-state&modules[]=ietf-l3vpn-svc&modules[]=ietf-netconf-
acm&modules[]=ietf-interfaces&modules[]=ietf-vrrp&modules[]=ietf-rip&mod
ules[]=ietf-datastores&modules[]=ietf-origin&recurse=1&rfcs=1&show_subm=
1&show_dir=dependencies>
> for these RFC editor modules, as requirement before publishing.
>
> Some more YANG modules are on the IESG table:
>   draft-ietf-pim-yang has a DISCUSS (Jan 11th IESG telechat)
>   draft-ietf-netmod-rfc8022bis is on the Jan 25th IESG telechat
>   draft-ietf-netmod-entity is on the Jan 25th IESG telechat
>
> Assuming those are in the RFC editor queue, this is the new set of
YANG
> module dependencies
>
<https://www.yangcatalog.org/yang-search/impact_analysis.php?modules[]=i
etf-ip&modules[]=ietf-connectionless-oam&modules[]=ietf-lime-time-types&
modules[]=ietf-connectionless-oam-methods&modules[]=ietf-l3-unicast-topo
logy&modules[]=ietf-l3-unicast-topology-state&modules[]=ietf-network-top
ology&modules[]=ietf-network-topology-state&modules[]=ietf-network&modul
es[]=ietf-network-state&modules[]=ietf-l3vpn-svc&modules[]=ietf-netconf-
acm&modules[]=ietf-interfaces&modules[]=ietf-vrrp&modules[]=ietf-rip&mod
ules[]=ietf-pim-dm&modules[]=ietf-pim-base&modules[]=ietf-pim-sm&modules
[]=ietf-pim-bidir&modules[]=ietf-pim-rp&modules[]=ietf-routing&modules[]
=ietf-ipv6-router-advertisements&modules[]=ietf-ipv4-unicast-routing&mod
ules[]=ietf-ipv6-unicast-routing&modules[]=ietf-entity&modules[]=ietf-da
tastores&modules[]=ietf-origin&recurse=1&rfcs=1&show_subm=1&show_dir=dep
endencies>.
> It takes a little bit of re-arrangering the elements, but all the
> information is there.
>
> The next bottlenecks for publishing those YANG modules are:
>   draft-ietf-netmod-schema-mount
>   draft-ietf-rtgwg-ni-model
>   ietf-bfd-yang
>   draft-ietf-ospf-yang
>   draft-ietf-isis-yang-isis-cfg
> Please progress those documents asap
>
> Some more updates below.
>
> _NI, LNE, and schema mount, RFC7895bis, schema mount:_
>   draft-ietf-rtgwg-lne-model
>   Status: Publication requested, Alia's AD review
>   draft-ietf-rtgwg-ni-model
>   Status: Publication requested, Alia's AD review
>   draft-ietf-netmod-schema-mount:
>   Status: WG LC closed, not sure on the next steps ...
>   draft-ietf-netconf-rfc7895bis
>   Status not clear...
>
> _LIME:_
> draft-ietf-lime-yang-connection-oriented-oam-model-00
>   Status: Benoit to perform the AD review.
>
> Regards, Benoit
>


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


> _______________________________________________
> OSPF mailing list
> OSPF@ietf.org
> https://www.ietf.org/mailman/listinfo/ospf
>


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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/1AC4zPcpQn0ml1HGTPBTQigpluw>
Subject: Re: [OSPF] Fwd: YANG modules publication: what to focus on next?
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X-List-Received-Date: Wed, 17 Jan 2018 17:48:05 -0000

Benoit

I just got a bounce telling me that the mailing list of the second of
the WG you sent this to, the one whose name causes my e-mails to be
blackholed, does not exist - I think that there should be a -wg at the
end.

Tom Petch


----- Original Message -----
From: "Benoit Claise" <bclaise@cisco.com>
To: <ospf@ietf.org>; <isis@ietf.org>
Sent: Tuesday, January 16, 2018 11:30 AM
Subject: [OSPF] Fwd: YANG modules publication: what to focus on next?


> Dear all,
>
> So that you know that draft-ietf-ospf-yang and
> draft-ietf-isis-yang-****-cfg are bottlenecks to publish many YANG
> modules. Please progress them asap.
>
> Regards, Benoit
>
>
> -------- Forwarded Message --------
> Subject: YANG modules publication: what to focus on next?
> Date: Tue, 16 Jan 2018 12:27:01 +0100
> From: Benoit Claise <bclaise@cisco.com>
> To: NETMOD Working Group <netmod@ietf.org>
>
>
> Dear all,
>
> At the last IETF meeting, Alia, Deborah and I looked at the
publication
> status of most YANG modules.
> Since that time, I've been keeping a summary of the situation. Let me
> share it with everybody.
>
> Before publishing YANG modules, we have two series of bottlenecks:
> - the YANG module import (shown by tooling below)
> - the normative references (MISSREF in the RFC editor queue
> <https://www.rfc-editor.org/current_queue.php>)
>   Note that draft-ietf-netmod-revised-datastores, a normative
reference
> for many YANG modules,
>   was just approved. Good news!
>
> We now have many YANG modules in RFC editor queue:
> ***draft-ietf-lime-yang-connectionless-oam-18
>
<https://datatracker.ietf.org/doc/draft-ietf-lime-yang-connectionless-oa
m>**
> ****draft-ietf-lime-yang-connectionless-oam-methods-13
>
<https://datatracker.ietf.org/doc/draft-ietf-lime-yang-connectionless-oa
m-methods>**
> ****draft-ietf-i2rs-yang-l3-topology-16
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l3-topology>**
> ****draft-ietf-i2rs-yang-network-topo-20
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-network-topo>**
> ****draft-wu-l3sm-rfc8049bis-11
> <https://datatracker.ietf.org/doc/draft-wu-l3sm-rfc8049bis>****
> **draft-ietf-netconf-rfc6536bis-09
> <https://datatracker.ietf.org/doc/draft-ietf-netconf-rfc6536bis>
> *draft-ietf-netmod-rfc7223bis-03
> <https://datatracker.ietf.org/doc/draft-ietf-netmod-rfc7223bis/>
> draft-ietf-netmod-rfc7277bis-03
> <https://datatracker.ietf.org/doc/draft-ietf-netmod-rfc7277bis/>
> draft-ietf-rtgwg-yang-vrrp-09
> <https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-vrrp/>
> draft-ietf-rtgwg-yang-rip-08
> <https://datatracker.ietf.org/doc/draft-ietf-rtgwg-yang-rip/>
> draft-ietf-netmod-revised-datastores-10
>
<https://datatracker.ietf.org/doc/draft-ietf-netmod-revised-datastores/>
>
> Here are the YANG module dependencies
>
<https://www.yangcatalog.org/yang-search/impact_analysis.php?modules[]=i
etf-ip&modules[]=ietf-connectionless-oam&modules[]=ietf-lime-time-types&
modules[]=ietf-connectionless-oam-methods&modules[]=ietf-l3-unicast-topo
logy&modules[]=ietf-l3-unicast-topology-state&modules[]=ietf-network-top
ology&modules[]=ietf-network-topology-state&modules[]=ietf-network&modul
es[]=ietf-network-state&modules[]=ietf-l3vpn-svc&modules[]=ietf-netconf-
acm&modules[]=ietf-interfaces&modules[]=ietf-vrrp&modules[]=ietf-rip&mod
ules[]=ietf-datastores&modules[]=ietf-origin&recurse=1&rfcs=1&show_subm=
1&show_dir=dependencies>
> for these RFC editor modules, as requirement before publishing.
>
> Some more YANG modules are on the IESG table:
>   draft-ietf-pim-yang has a DISCUSS (Jan 11th IESG telechat)
>   draft-ietf-netmod-rfc8022bis is on the Jan 25th IESG telechat
>   draft-ietf-netmod-entity is on the Jan 25th IESG telechat
>
> Assuming those are in the RFC editor queue, this is the new set of
YANG
> module dependencies
>
<https://www.yangcatalog.org/yang-search/impact_analysis.php?modules[]=i
etf-ip&modules[]=ietf-connectionless-oam&modules[]=ietf-lime-time-types&
modules[]=ietf-connectionless-oam-methods&modules[]=ietf-l3-unicast-topo
logy&modules[]=ietf-l3-unicast-topology-state&modules[]=ietf-network-top
ology&modules[]=ietf-network-topology-state&modules[]=ietf-network&modul
es[]=ietf-network-state&modules[]=ietf-l3vpn-svc&modules[]=ietf-netconf-
acm&modules[]=ietf-interfaces&modules[]=ietf-vrrp&modules[]=ietf-rip&mod
ules[]=ietf-pim-dm&modules[]=ietf-pim-base&modules[]=ietf-pim-sm&modules
[]=ietf-pim-bidir&modules[]=ietf-pim-rp&modules[]=ietf-routing&modules[]
=ietf-ipv6-router-advertisements&modules[]=ietf-ipv4-unicast-routing&mod
ules[]=ietf-ipv6-unicast-routing&modules[]=ietf-entity&modules[]=ietf-da
tastores&modules[]=ietf-origin&recurse=1&rfcs=1&show_subm=1&show_dir=dep
endencies>.
> It takes a little bit of re-arrangering the elements, but all the
> information is there.
>
> The next bottlenecks for publishing those YANG modules are:
>   draft-ietf-netmod-schema-mount
>   draft-ietf-rtgwg-ni-model
>   ietf-bfd-yang
>   draft-ietf-ospf-yang
>   draft-ietf-
> Please progress those documents asap
>
> Some more updates below.
>
> _NI, LNE, and schema mount, RFC7895bis, schema mount:_
>   draft-ietf-rtgwg-lne-model
>   Status: Publication requested, Alia's AD review
>   draft-ietf-rtgwg-ni-model
>   Status: Publication requested, Alia's AD review
>   draft-ietf-netmod-schema-mount:
>   Status: WG LC closed, not sure on the next steps ...
>   draft-ietf-netconf-rfc7895bis
>   Status not clear...
>
> _LIME:_
> draft-ietf-lime-yang-connection-oriented-oam-model-00
>   Status: Benoit to perform the AD review.
>
> Regards, Benoit
>


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


> _______________________________________________
> OSPF mailing list
> OSPF@ietf.org
> https://www.ietf.org/mailman/listinfo/ospf
>


From nobody Wed Jan 17 09:58:10 2018
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "t.petch" <ietfc@btconnect.com>, "ospf@ietf.org" <ospf@ietf.org>, "Benoit Claise (bclaise)" <bclaise@cisco.com>
Thread-Topic: [OSPF] Fwd: YANG modules publication: what to focus on next?
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Subject: Re: [OSPF] Fwd: YANG modules publication: what to focus on next?
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "t.petch" <ietfc@btconnect.com>
CC: "Benoit Claise (bclaise)" <bclaise@cisco.com>, "ospf@ietf.org" <ospf@ietf.org>, "isis@ietf.org" <isis@ietf.org>
Thread-Topic: [OSPF] Fwd: YANG modules publication: what to focus on next?
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Date: Wed, 17 Jan 2018 18:05:05 +0000
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Subject: Re: [OSPF] Fwd: YANG modules publication: what to focus on next?
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From: Eric Rescorla <ekr@rtfm.com>
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Subject: [OSPF] Eric Rescorla's No Objection on draft-ietf-ospf-link-overload-12: (with COMMENT)
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Eric Rescorla has entered the following ballot position for
draft-ietf-ospf-link-overload-12: No Objection

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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-ospf-link-overload/



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

I think this document would be clearer if the example in S 7.1 were
in the intro. I was scratching my head a bit at the beginning and
then got to 7.1 and it made more sense.



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Subject: Re: [OSPF] Eric Rescorla's No Objection on draft-ietf-ospf-link-overload-12: (with COMMENT)
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From: Eric Rescorla <ekr@rtfm.com>
Date: Thu, 18 Jan 2018 10:38:53 -0800
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To: Shraddha Hegde <shraddha@juniper.net>
Cc: The IESG <iesg@ietf.org>, "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>,  "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "acee@cisco.com" <acee@cisco.com>, "ospf@ietf.org" <ospf@ietf.org>
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Subject: Re: [OSPF] Eric Rescorla's No Objection on draft-ietf-ospf-link-overload-12: (with COMMENT)
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--089e0828a13cfb1a5b0563114818
Content-Type: text/plain; charset="UTF-8"

On Thu, Jan 18, 2018 at 10:31 AM, Shraddha Hegde <shraddha@juniper.net>
wrote:

> Hi Eric,
>
> Introduction section does have a brief description and refers to 7.1 for
> detailed description of the use case. Moving detailed use case description
> to introduction section will make it cluttered.
>
Also there are other applications apart from 7.1 which also have a brief
> description in the
> Introduction and refer to application section for detailed description.
>

Well, it's a comment, so you're free to ignore it, but as a consume of this
document, I found the current structure hard to follow.

-Ekr


>
> Rgds
> Shraddha
>
> -----Original Message-----
> From: Eric Rescorla [mailto:ekr@rtfm.com]
> Sent: Thursday, January 18, 2018 10:11 PM
> To: The IESG <iesg@ietf.org>
> Cc: draft-ietf-ospf-link-overload@ietf.org; Acee Lindem <acee@cisco.com>;
> ospf-chairs@ietf.org; acee@cisco.com; ospf@ietf.org
> Subject: Eric Rescorla's No Objection on draft-ietf-ospf-link-overload-12:
> (with COMMENT)
>
> Eric Rescorla has entered the following ballot position for
> draft-ietf-ospf-link-overload-12: 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://urldefense.proofpoint.com/v2/url?u=https-3A__www.
> ietf.org_iesg_statement_discuss-2Dcriteria.html&d=DwICaQ&c=
> HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=
> NyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&m=
> 3MyT2IBHmmEmtejJI2o73p3zIjhzSmGtffDprR-DdD0&s=TufjwL4DRLGVAWd56qU-
> 6DaDDRfPsgeHp8JmN2XrdTE&e=
> for more information about IESG DISCUSS and COMMENT positions.
>
>
> The document, along with other ballot positions, can be found here:
> https://urldefense.proofpoint.com/v2/url?u=https-3A__
> datatracker.ietf.org_doc_draft-2Dietf-2Dospf-2Dlink-
> 2Doverload_&d=DwICaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=
> NyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&m=
> 3MyT2IBHmmEmtejJI2o73p3zIjhzSmGtffDprR-DdD0&s=
> avFGB5zEal090OxCbLLU5A1NvjlOJREQPCY-yP7GTDk&e=
>
>
>
> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
>
> I think this document would be clearer if the example in S 7.1 were in the
> intro. I was scratching my head a bit at the beginning and then got to 7.1
> and it made more sense.
>
>
>

--089e0828a13cfb1a5b0563114818
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote">On T=
hu, Jan 18, 2018 at 10:31 AM, Shraddha Hegde <span dir=3D"ltr">&lt;<a href=
=3D"mailto:shraddha@juniper.net" target=3D"_blank">shraddha@juniper.net</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>
Introduction section does have a brief description and refers to 7.1 for de=
tailed description of the use case. Moving detailed use case description to=
 introduction section will make it cluttered.<br></blockquote><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;=
padding-left:1ex">Also there are other applications apart from 7.1 which al=
so have a brief description in the<br>
Introduction and refer to application section for detailed description.<br>=
</blockquote><div><br></div><div>Well, it&#39;s a comment, so you&#39;re fr=
ee to ignore it, but as a consume of this document, I found the current str=
ucture hard to follow.</div><div><br></div><div>-Ekr</div><div>=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>
Rgds<br>
Shraddha<br>
<span class=3D""><br>
-----Original Message-----<br>
From: Eric Rescorla [mailto:<a href=3D"mailto:ekr@rtfm.com">ekr@rtfm.com</a=
>]<br>
Sent: Thursday, January 18, 2018 10:11 PM<br>
To: The IESG &lt;<a href=3D"mailto:iesg@ietf.org">iesg@ietf.org</a>&gt;<br>
Cc: <a href=3D"mailto:draft-ietf-ospf-link-overload@ietf.org">draft-ietf-os=
pf-link-overload@<wbr>ietf.org</a>; Acee Lindem &lt;<a href=3D"mailto:acee@=
cisco.com">acee@cisco.com</a>&gt;; <a href=3D"mailto:ospf-chairs@ietf.org">=
ospf-chairs@ietf.org</a>; <a href=3D"mailto:acee@cisco.com">acee@cisco.com<=
/a>; <a href=3D"mailto:ospf@ietf.org">ospf@ietf.org</a><br>
Subject: Eric Rescorla&#39;s No Objection on draft-ietf-ospf-link-overload-=
<wbr>12: (with COMMENT)<br>
<br>
Eric Rescorla has entered the following ballot position for<br>
draft-ietf-ospf-link-overload-<wbr>12: 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>
</span>Please refer to <a href=3D"https://urldefense.proofpoint.com/v2/url?=
u=3Dhttps-3A__www.ietf.org_iesg_statement_discuss-2Dcriteria.html&amp;d=3DD=
wICaQ&amp;c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA=
7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&amp;m=3D3MyT2IBHmmEmtejJI2o73p3zIjhzSmGt=
ffDprR-DdD0&amp;s=3DTufjwL4DRLGVAWd56qU-6DaDDRfPsgeHp8JmN2XrdTE&amp;e=3D" r=
el=3D"noreferrer" target=3D"_blank">https://urldefense.proofpoint.<wbr>com/=
v2/url?u=3Dhttps-3A__www.<wbr>ietf.org_iesg_statement_<wbr>discuss-2Dcriter=
ia.html&amp;d=3D<wbr>DwICaQ&amp;c=3D<wbr>HAkYuh63rsuhr6Scbfh0UjBXeMK-<wbr>n=
db3voDTXcWzoCI&amp;r=3D<wbr>NyjLsr7JA7mvpCJa0YmPdVKcmMXJ31<wbr>bpbBaNqzCNrn=
g&amp;m=3D<wbr>3MyT2IBHmmEmtejJI2o73p3zIjhzSm<wbr>GtffDprR-DdD0&amp;s=3D<wb=
r>TufjwL4DRLGVAWd56qU-<wbr>6DaDDRfPsgeHp8JmN2XrdTE&amp;e=3D</a><br>
<span class=3D"">for more information about IESG DISCUSS and COMMENT positi=
ons.<br>
<br>
<br>
The document, along with other ballot positions, can be found here:<br>
</span><a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__da=
tatracker.ietf.org_doc_draft-2Dietf-2Dospf-2Dlink-2Doverload_&amp;d=3DDwICa=
Q&amp;c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvp=
CJa0YmPdVKcmMXJ31bpbBaNqzCNrng&amp;m=3D3MyT2IBHmmEmtejJI2o73p3zIjhzSmGtffDp=
rR-DdD0&amp;s=3DavFGB5zEal090OxCbLLU5A1NvjlOJREQPCY-yP7GTDk&amp;e=3D" rel=
=3D"noreferrer" target=3D"_blank">https://urldefense.proofpoint.<wbr>com/v2=
/url?u=3Dhttps-3A__<wbr>datatracker.ietf.org_doc_<wbr>draft-2Dietf-2Dospf-2=
Dlink-<wbr>2Doverload_&amp;d=3DDwICaQ&amp;c=3D<wbr>HAkYuh63rsuhr6Scbfh0UjBX=
eMK-<wbr>ndb3voDTXcWzoCI&amp;r=3D<wbr>NyjLsr7JA7mvpCJa0YmPdVKcmMXJ31<wbr>bp=
bBaNqzCNrng&amp;m=3D<wbr>3MyT2IBHmmEmtejJI2o73p3zIjhzSm<wbr>GtffDprR-DdD0&a=
mp;s=3D<wbr>avFGB5zEal090OxCbLLU5A1NvjlOJR<wbr>EQPCY-yP7GTDk&amp;e=3D</a><b=
r>
<div class=3D"HOEnZb"><div class=3D"h5"><br>
<br>
<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
COMMENT:<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
<br>
I think this document would be clearer if the example in S 7.1 were in the =
intro. I was scratching my head a bit at the beginning and then got to 7.1 =
and it made more sense.<br>
<br>
<br>
</div></div></blockquote></div><br></div></div>

--089e0828a13cfb1a5b0563114818--


From nobody Thu Jan 18 15:14:35 2018
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From: Joel Halpern <jmh@joelhalpern.com>
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Subject: [OSPF] Genart telechat review of draft-ietf-ospf-link-overload-12
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Reviewer: Joel Halpern
Review result: Ready

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 wait for direction from your
document shepherd or AD before posting a new version of the draft.

For more information, please see the FAQ at

<https://trac.ietf.org/trac/gen/wiki/GenArtfaq>.

Document: draft-ietf-ospf-link-overload-12
Reviewer: Joel Halpern
Review Date: 2018-01-18
IETF LC End Date: 2018-01-16
IESG Telechat date: 2018-01-25

Summary: This document is ready for publication as a Proposed Standard RFC.
    My thanks to the authors and WG for addressing my concerns about naming.

Major issues: N/A

Minor issues: N/A

Nits/editorial comments:  N/A



From nobody Fri Jan 19 05:24:04 2018
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Subject: [OSPF] I-D Action: draft-ietf-ospf-ospfv3-lsa-extend-21.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 Open Shortest Path First IGP WG of the IETF.

        Title           : OSPFv3 LSA Extendibility
        Authors         : Acee Lindem
                          Abhay Roy
                          Dirk Goethals
                          Veerendranatha Reddy Vallem
                          Fred Baker
	Filename        : draft-ietf-ospf-ospfv3-lsa-extend-21.txt
	Pages           : 38
	Date            : 2018-01-19

Abstract:
   OSPFv3 requires functional extension beyond what can readily be done
   with the fixed-format Link State Advertisement (LSA) as described in
   RFC 5340.  Without LSA extension, attributes associated with OSPFv3
   links and advertised IPv6 prefixes must be advertised in separate
   LSAs and correlated to the fixed-format LSAs.  This document extends
   the LSA format by encoding the existing OSPFv3 LSA information in
   Type-Length-Value (TLV) tuples and allowing advertisement of
   additional information with additional TLVs.  Backward compatibility
   mechanisms are also described.

   This document updates RFC 5340, "OSPF for IPv6", and RFC 5838,
   "Support of Address Families in OSPFv3".


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-ospfv3-lsa-extend/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-ospfv3-lsa-extend-21
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-ospfv3-lsa-extend-21

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-ospfv3-lsa-extend-21


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 Jan 21 21:48:52 2018
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From: Shraddha Hegde <shraddha@juniper.net>
To: Eric Rescorla <ekr@rtfm.com>
CC: The IESG <iesg@ietf.org>, "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "acee@cisco.com" <acee@cisco.com>, "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: Eric Rescorla's No Objection on draft-ietf-ospf-link-overload-12: (with COMMENT)
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/ca9U-hcykkj44Lk6OslRjiXGQxI>
Subject: Re: [OSPF] Eric Rescorla's No Objection on draft-ietf-ospf-link-overload-12: (with COMMENT)
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From: Eric Rescorla <ekr@rtfm.com>
Date: Sun, 21 Jan 2018 21:50:54 -0800
Message-ID: <CABcZeBNgDeuUcM4uaLro0=wyU_mnnHYk_XigOKx=Y8azmO7NHg@mail.gmail.com>
To: Shraddha Hegde <shraddha@juniper.net>
Cc: The IESG <iesg@ietf.org>, "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>,  "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "acee@cisco.com" <acee@cisco.com>, "ospf@ietf.org" <ospf@ietf.org>
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Subject: Re: [OSPF] Eric Rescorla's No Objection on draft-ietf-ospf-link-overload-12: (with COMMENT)
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Yes, this seems better.

-Ekr


-

On Sun, Jan 21, 2018 at 9:48 PM, Shraddha Hegde <shraddha@juniper.net>
wrote:

> Eric,
>
>
>
> I added more text to introduction section . Pls check if it helps improve
> readability.
>
>
>
> =E2=80=9CMany OSPFv2 or OSPFv3 deployments run on overlay networks provis=
ioned
>
>    by means of pseudo-wires or L2-circuits.  Prior to devices in the
>
>    underlying network going offline for maintenance, it is useful to
>
>    divert the traffic away from the node before the maintenance is
>
>    actually performed.  Since the nodes in the underlying network are
>
>    not visible to OSPF, the existing stub router mechanism described in
>
>    [RFC6987] cannot be used.  In a service provider's network, there may
>
>    be many CE-to-CE connections that run over a single PE.  It is
>
>    cumbersome to change the metric on every CE-to-CE connection in both
>
>    directions.  This document provides a mechanism to change metric in
>
>    other direction of the link and also use the link as a last-resort-lin=
k
> if
>
>    no alternate paths are available.  An application specific to this
>
>    use case is described in detail in Section 7.1.=E2=80=9D
>
>
>
>
>
>
>
> rgds
>
> Shraddha
>
> *From:* Eric Rescorla [mailto:ekr@rtfm.com]
> *Sent:* Friday, January 19, 2018 12:09 AM
> *To:* Shraddha Hegde <shraddha@juniper.net>
> *Cc:* The IESG <iesg@ietf.org>; draft-ietf-ospf-link-overload@ietf.org;
> ospf-chairs@ietf.org; acee@cisco.com; ospf@ietf.org
> *Subject:* Re: Eric Rescorla's No Objection on
> draft-ietf-ospf-link-overload-12: (with COMMENT)
>
>
>
> On Thu, Jan 18, 2018 at 10:31 AM, Shraddha Hegde <shraddha@juniper.net>
> wrote:
>
> Hi Eric,
>
> Introduction section does have a brief description and refers to 7.1 for
> detailed description of the use case. Moving detailed use case descriptio=
n
> to introduction section will make it cluttered.
>
> Also there are other applications apart from 7.1 which also have a brief
> description in the
> Introduction and refer to application section for detailed description.
>
>
>
> Well, it's a comment, so you're free to ignore it, but as a consume of
> this document, I found the current structure hard to follow.
>
>
>
> -Ekr
>
>
>
>
> Rgds
> Shraddha
>
> -----Original Message-----
> From: Eric Rescorla [mailto:ekr@rtfm.com]
> Sent: Thursday, January 18, 2018 10:11 PM
> To: The IESG <iesg@ietf.org>
> Cc: draft-ietf-ospf-link-overload@ietf.org; Acee Lindem <acee@cisco.com>;
> ospf-chairs@ietf.org; acee@cisco.com; ospf@ietf.org
> Subject: Eric Rescorla's No Objection on draft-ietf-ospf-link-overload-12=
:
> (with COMMENT)
>
> Eric Rescorla has entered the following ballot position for
> draft-ietf-ospf-link-overload-12: 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://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__ww=
w.
> ietf.org_iesg_statement_discuss-2Dcriteria.html&d=3DDwICaQ&c=3D
> HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3D
> NyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&m=3D
> 3MyT2IBHmmEmtejJI2o73p3zIjhzSmGtffDprR-DdD0&s=3DTufjwL4DRLGVAWd56qU-
> 6DaDDRfPsgeHp8JmN2XrdTE&e=3D
> for more information about IESG DISCUSS and COMMENT positions.
>
>
> The document, along with other ballot positions, can be found here:
> https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__
> datatracker.ietf.org_doc_draft-2Dietf-2Dospf-2Dlink-
> 2Doverload_&d=3DDwICaQ&c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=
=3D
> NyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&m=3D
> 3MyT2IBHmmEmtejJI2o73p3zIjhzSmGtffDprR-DdD0&s=3D
> avFGB5zEal090OxCbLLU5A1NvjlOJREQPCY-yP7GTDk&e=3D
>
>
>
>
> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
>
> I think this document would be clearer if the example in S 7.1 were in th=
e
> intro. I was scratching my head a bit at the beginning and then got to 7.=
1
> and it made more sense.
>
>
>

--94eb2c128a48d3892b05635705ce
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<div dir=3D"ltr">Yes, this seems better.<div><br></div><div>-Ekr</div><div>=
<br><div><br></div><div>-</div></div></div><div class=3D"gmail_extra"><br><=
div class=3D"gmail_quote">On Sun, Jan 21, 2018 at 9:48 PM, Shraddha Hegde <=
span dir=3D"ltr">&lt;<a href=3D"mailto:shraddha@juniper.net" target=3D"_bla=
nk">shraddha@juniper.net</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">





<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"m_-5298018896246385989WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">Eric,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">I added more text to introduction sec=
tion . Pls check if it helps improve readability.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=E2=80=9CMany OSPFv2 or OSPFv3 deploy=
ments run on overlay networks provisioned<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=C2=A0=C2=A0 by means of pseudo-wires=
 or L2-circuits.=C2=A0 Prior to devices in the<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=C2=A0=C2=A0 underlying network going=
 offline for maintenance, it is useful to<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=C2=A0=C2=A0 divert the traffic away =
from the node before the maintenance is<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=C2=A0=C2=A0 actually performed.=C2=
=A0 Since the nodes in the underlying network are<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=C2=A0=C2=A0 not visible to OSPF, the=
 existing stub router mechanism described in<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=C2=A0=C2=A0 [RFC6987] cannot be used=
.=C2=A0 In a service provider&#39;s network, there may<u></u><u></u></span>=
</p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=C2=A0=C2=A0 be many CE-to-CE connect=
ions that run over a single PE.=C2=A0 It is<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=C2=A0=C2=A0 cumbersome to change the=
 metric on every CE-to-CE connection in both<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=C2=A0=C2=A0 directions.=C2=A0 This d=
ocument provides a mechanism to change metric in<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=C2=A0=C2=A0 other direction of the l=
ink and also use the link as a last-resort-link if<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=C2=A0=C2=A0 no alternate paths are a=
vailable.=C2=A0 An application specific to this<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">=C2=A0=C2=A0 use case is described in=
 detail in Section 7.1.=E2=80=9D<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">rgds<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1f497d">Shraddha<u></u><u></u></span></p>
<p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt;font-family:&quot=
;Calibri&quot;,sans-serif">From:</span></b><span style=3D"font-size:11.0pt;=
font-family:&quot;Calibri&quot;,sans-serif"> Eric Rescorla [mailto:<a href=
=3D"mailto:ekr@rtfm.com" target=3D"_blank">ekr@rtfm.com</a>]
<br>
<b>Sent:</b> Friday, January 19, 2018 12:09 AM<br>
<b>To:</b> Shraddha Hegde &lt;<a href=3D"mailto:shraddha@juniper.net" targe=
t=3D"_blank">shraddha@juniper.net</a>&gt;<br>
<b>Cc:</b> The IESG &lt;<a href=3D"mailto:iesg@ietf.org" target=3D"_blank">=
iesg@ietf.org</a>&gt;; <a href=3D"mailto:draft-ietf-ospf-link-overload@ietf=
.org" target=3D"_blank">draft-ietf-ospf-link-overload@<wbr>ietf.org</a>; <a=
 href=3D"mailto:ospf-chairs@ietf.org" target=3D"_blank">ospf-chairs@ietf.or=
g</a>; <a href=3D"mailto:acee@cisco.com" target=3D"_blank">acee@cisco.com</=
a>; <a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf@ietf.org</a><br=
>
<b>Subject:</b> Re: Eric Rescorla&#39;s No Objection on draft-ietf-ospf-lin=
k-overload-<wbr>12: (with COMMENT)<u></u><u></u></span></p><div><div class=
=3D"h5">
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<div>
<p class=3D"MsoNormal">On Thu, Jan 18, 2018 at 10:31 AM, Shraddha Hegde &lt=
;<a href=3D"mailto:shraddha@juniper.net" target=3D"_blank">shraddha@juniper=
.net</a>&gt; wrote:<u></u><u></u></p>
<blockquote style=3D"border:none;border-left:solid #cccccc 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
<p class=3D"MsoNormal">Hi Eric,<br>
<br>
Introduction section does have a brief description and refers to 7.1 for de=
tailed description of the use case. Moving detailed use case description to=
 introduction section will make it cluttered.<u></u><u></u></p>
</blockquote>
<blockquote style=3D"border:none;border-left:solid #cccccc 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
<p class=3D"MsoNormal">Also there are other applications apart from 7.1 whi=
ch also have a brief description in the<br>
Introduction and refer to application section for detailed description.<u><=
/u><u></u></p>
</blockquote>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Well, it&#39;s a comment, so you&#39;re free to igno=
re it, but as a consume of this document, I found the current structure har=
d to follow.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">-Ekr<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<blockquote style=3D"border:none;border-left:solid #cccccc 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
<p class=3D"MsoNormal"><br>
Rgds<br>
Shraddha<br>
<br>
-----Original Message-----<br>
From: Eric Rescorla [mailto:<a href=3D"mailto:ekr@rtfm.com" target=3D"_blan=
k">ekr@rtfm.com</a>]<br>
Sent: Thursday, January 18, 2018 10:11 PM<br>
To: The IESG &lt;<a href=3D"mailto:iesg@ietf.org" target=3D"_blank">iesg@ie=
tf.org</a>&gt;<br>
Cc: <a href=3D"mailto:draft-ietf-ospf-link-overload@ietf.org" target=3D"_bl=
ank">draft-ietf-ospf-link-overload@<wbr>ietf.org</a>; Acee Lindem &lt;<a hr=
ef=3D"mailto:acee@cisco.com" target=3D"_blank">acee@cisco.com</a>&gt;;
<a href=3D"mailto:ospf-chairs@ietf.org" target=3D"_blank">ospf-chairs@ietf.=
org</a>; <a href=3D"mailto:acee@cisco.com" target=3D"_blank">
acee@cisco.com</a>; <a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf=
@ietf.org</a><br>
Subject: Eric Rescorla&#39;s No Objection on draft-ietf-ospf-link-overload-=
<wbr>12: (with COMMENT)<br>
<br>
Eric Rescorla has entered the following ballot position for<br>
draft-ietf-ospf-link-overload-<wbr>12: 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://urldefense.proofpoint.com/v2/url?u=3Dhtt=
ps-3A__www.ietf.org_iesg_statement_discuss-2Dcriteria.html&amp;d=3DDwICaQ&a=
mp;c=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvpCJa=
0YmPdVKcmMXJ31bpbBaNqzCNrng&amp;m=3D3MyT2IBHmmEmtejJI2o73p3zIjhzSmGtffDprR-=
DdD0&amp;s=3DTufjwL4DRLGVAWd56qU-6DaDDRfPsgeHp8JmN2XrdTE&amp;e=3D" target=
=3D"_blank">
https://urldefense.proofpoint.<wbr>com/v2/url?u=3Dhttps-3A__www.<wbr>ietf.o=
rg_iesg_statement_<wbr>discuss-2Dcriteria.html&amp;d=3D<wbr>DwICaQ&amp;c=3D=
<wbr>HAkYuh63rsuhr6Scbfh0UjBXeMK-<wbr>ndb3voDTXcWzoCI&amp;r=3D<wbr>NyjLsr7J=
A7mvpCJa0YmPdVKcmMXJ31<wbr>bpbBaNqzCNrng&amp;m=3D<wbr>3MyT2IBHmmEmtejJI2o73=
p3zIjhzSm<wbr>GtffDprR-DdD0&amp;s=3D<wbr>TufjwL4DRLGVAWd56qU-<wbr>6DaDDRfPs=
geHp8JmN2XrdTE&amp;e=3D</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://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__datatrack=
er.ietf.org_doc_draft-2Dietf-2Dospf-2Dlink-2Doverload_&amp;d=3DDwICaQ&amp;c=
=3DHAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&amp;r=3DNyjLsr7JA7mvpCJa0YmP=
dVKcmMXJ31bpbBaNqzCNrng&amp;m=3D3MyT2IBHmmEmtejJI2o73p3zIjhzSmGtffDprR-DdD0=
&amp;s=3DavFGB5zEal090OxCbLLU5A1NvjlOJREQPCY-yP7GTDk&amp;e=3D" target=3D"_b=
lank">https://urldefense.proofpoint.<wbr>com/v2/url?u=3Dhttps-3A__<wbr>data=
tracker.ietf.org_doc_<wbr>draft-2Dietf-2Dospf-2Dlink-<wbr>2Doverload_&amp;d=
=3DDwICaQ&amp;c=3D<wbr>HAkYuh63rsuhr6Scbfh0UjBXeMK-<wbr>ndb3voDTXcWzoCI&amp=
;r=3D<wbr>NyjLsr7JA7mvpCJa0YmPdVKcmMXJ31<wbr>bpbBaNqzCNrng&amp;m=3D<wbr>3My=
T2IBHmmEmtejJI2o73p3zIjhzSm<wbr>GtffDprR-DdD0&amp;s=3D<wbr>avFGB5zEal090OxC=
bLLU5A1NvjlOJR<wbr>EQPCY-yP7GTDk&amp;e=3D</a><u></u><u></u></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><br>
<br>
<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
COMMENT:<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
<br>
I think this document would be clearer if the example in S 7.1 were in the =
intro. I was scratching my head a bit at the beginning and then got to 7.1 =
and it made more sense.<br>
<br>
<u></u><u></u></p>
</div>
</div>
</blockquote>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>
</div></div></div>
</div>

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

--94eb2c128a48d3892b05635705ce--


From nobody Sun Jan 21 22:01:03 2018
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Subject: [OSPF] I-D Action: draft-ietf-ospf-link-overload-13.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Open Shortest Path First IGP WG of the IETF.

        Title           : OSPF Graceful Link shutdown
        Authors         : Shraddha Hegde
                          Pushpasis Sarkar
                          Hannes Gredler
                          Mohan Nanduri
                          Luay Jalil
	Filename        : draft-ietf-ospf-link-overload-13.txt
	Pages           : 16
	Date            : 2018-01-21

Abstract:
   When a link is being prepared to be taken out of service, the traffic
   needs to be diverted from both ends of the link.  Increasing the
   metric to the highest value on one side of the link is not sufficient
   to divert the traffic flowing in the other direction.

   It is useful for routers in an OSPFv2 or OSPFv3 routing domain to be
   able to advertise a link as being in a graceful-shutdown state to
   indicate impending maintenance activity on the link.  This
   information can be used by the network devices to re-route the
   traffic effectively.

   This document describes the protocol extensions to disseminate
   graceful-link-shutdown information in OSPFv2 and OSPFv3.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-link-overload/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-link-overload-13
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-link-overload-13

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-link-overload-13


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

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


From nobody Mon Jan 22 06:55:12 2018
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Subject: [OSPF] Opsdir telechat review of draft-ietf-ospf-link-overload-13
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Reviewer: Tim Chown
Review result: Ready

Hi,

I have reviewed this document as part of the Operational directorate's ongoing
effort to review all IETF documents being processed by the IESG.  These
comments were written with the intent of improving the operational aspects of
the IETF drafts. Comments that are not addressed in last call may be included
in AD reviews during the IESG review. Document editors and WG chairs should
treat these comments just like any other last call comments.

This document defines mechanism(s) to allow OSPF routers to indicate that a
specific link, rather than a whole node, is entering an imminent maintenance
state, to allow other devices that understand the protocol extension(s) to more
gracefully re-route traffic around the affected link.

I believe the document is Ready for publication.  I have only three minor
comments below, which the authors may choose to act on.

Overall the document reads reasonably well. Not being overly familiar with the
material, I needed to read it through end-to-end more than once to better
understand its scope and intent. My first comment would be that perhaps the
introduction section could be better written; the abstract seemed clear on the
purpose of the draft, while the introduction felt a little muddled.  Sections
2, 3 and 4, which detail the motivations and extensions, were much clearer.

Secondly, there are some minor typographic errors throughout the document,
generally missing (in)definite articles.  While the RFC Editor would pick these
up, it would be nice for the authors to have a final pass and fix those before
submission.

Thirdly, the document does not give any advice on the timing of using the
extensions - how far in advance is it recommended to use the extensions? - or
on the return to 'normal' state once the maintenance is completed.  So perhaps
consider adding a short section on this, maybe in Section 5.

Best wishes,
Tim



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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Martin Bjorklund <mbj@tail-f.com>, "lhotka@nic.cz" <lhotka@nic.cz>
CC: "yang-doctors@ietf.org" <yang-doctors@ietf.org>, "draft-ietf-ospf-yang.all@ietf.org" <draft-ietf-ospf-yang.all@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: [yang-doctors] Yangdoctors last call review of draft-ietf-ospf-yang-09
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Date: Mon, 22 Jan 2018 18:42:07 +0000
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Subject: Re: [OSPF] [yang-doctors] Yangdoctors last call review of draft-ietf-ospf-yang-09
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From: Deborah Brungard <db3546@att.com>
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Cc: draft-ietf-ospf-link-overload@ietf.org, Acee Lindem <acee@cisco.com>, ospf-chairs@ietf.org, acee@cisco.com, ospf@ietf.org
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Subject: [OSPF] Deborah Brungard's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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Deborah Brungard has entered the following ballot position for
draft-ietf-ospf-link-overload-13: No Objection

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

I found the title of section 7.2 "Controller Based Traffic Engineering
Deployments" confusing as it only is describing a controller controlling a
path. It is not "TE" in the IETF sense e.g. TE signaling. It would be much less
confusing if say "Controller Based Deployments" and "satisfying the traffic
engineering constraints"/s/"satisfying the constraints". Especially as for TE,
procedures already do exist.  I noted in the introduction you did reference
RFC5817 MPLS Graceful Shutdown on the procedures when doing a graceful shutdown
of a TE link.



From nobody Tue Jan 23 09:01:24 2018
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----------------------------------------------------------------------
DISCUSS:
----------------------------------------------------------------------

This document is defining a MAX-TE-METRIC of 0xfffffffe. But RFC5817 defined
0xffffffff to be used for graceful shutdown. I noted an email exchange between
the author and Acee on this where Acee raised the question why RFC5817's value
was not used. Shraddha replied "We can if we have the Working Group Consensus".
There was no further discussion.

This document was not shared with teas which is responsible for TE (or ccamp
which was originally responsible for RFC5817).

Either this value needs to be changed to RFC5817's value or this TE metric
needs to be removed from this document until agreement with TEAS.


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

I found the title of section 7.2 "Controller Based Traffic Engineering
Deployments" confusing as it only is describing a controller controlling a
path. It is not "TE" in the IETF sense e.g. TE signaling. It would be much less
confusing if say "Controller Based Deployments" and "satisfying the traffic
engineering constraints"/s/"satisfying the constraints". Especially as for TE,
procedures already do exist.  I noted in the introduction you did reference
RFC5817 MPLS Graceful Shutdown on the procedures when doing a graceful shutdown
of a TE link.



From nobody Tue Jan 23 09:22:22 2018
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From: Alia Atlas <akatlas@gmail.com>
Date: Tue, 23 Jan 2018 12:22:05 -0500
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Subject: [OSPF] early proposed charter for the Link-State Routing WG
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--001a11c17f5447fb1e056374c963
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I am working on the initial charter for the LSR WG, which will combine the
OSPF and ISIS WGs.  At this time, I do not see moving the fast-reroute work
from RTGWG, but I am willing to hear opinions.

In general, feedback on what areas should be the initial focus or specific
concerns on scoping would be useful.  My basic plan is for a broad charter
focused
on maintenance, usage scenarios, and extensions - much as OSPF and ISIS are
chartered today.

I would like to have this on the February 8 IESG telechat, so rapid
feedback and reviews
of the proposed charter when it is sent out would be appreciated.

Thanks,
Alia

--001a11c17f5447fb1e056374c963
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<div dir=3D"ltr">I am working on the initial charter for the LSR WG, which =
will combine the=C2=A0<div>OSPF and ISIS WGs.=C2=A0 At this time, I do not =
see moving the fast-reroute work</div><div>from RTGWG, but I am willing to =
hear opinions.</div><div><br></div><div>In general, feedback on what areas =
should be the initial focus or specific=C2=A0</div><div>concerns on scoping=
 would be useful.=C2=A0 My basic plan is for a broad charter focused</div><=
div>on maintenance, usage scenarios, and extensions - much as OSPF and ISIS=
 are</div><div>chartered today.</div><div><br></div><div>I would like to ha=
ve this on the February 8 IESG telechat, so rapid feedback and reviews</div=
><div>of the proposed charter when it is sent out would be appreciated.</di=
v><div><br></div><div>Thanks,</div><div>Alia</div></div>

--001a11c17f5447fb1e056374c963--


From nobody Tue Jan 23 18:47:38 2018
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Subject: [OSPF] Ben Campbell's No Objection on draft-ietf-ospf-ospfv3-lsa-extend-21: (with COMMENT)
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COMMENT:
----------------------------------------------------------------------

-1.1: There are instances of lower case 2119 keywords. Please consider using
the boilerplate from RFC 8174.



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COMMENT:
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-8: It would be helpful to see a few sentences about how the security
considerations in 2328 and 5340 apply to the mechanisms in this draft, rather
than just a "no new considerations" assertion.



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-8: It would be helpful to see a few sentences about how the security
considerations in 2328 and 5340 apply to the mechanisms in this draft, rather
than just a "no new considerations" assertion.



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Subject: Re: [OSPF] Ben Campbell's No Objection on draft-ietf-ospf-ospfv3-lsa-extend-21: (with COMMENT)
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> On Jan 23, 2018, at 9:18 PM, Acee Lindem (acee) <acee@cisco.com> =
wrote:
>=20
> Hi Ben,
>=20
>=20

[=E2=80=A6]

>    =
----------------------------------------------------------------------
>    COMMENT:
>    =
----------------------------------------------------------------------
>=20
>    -1.1: There are instances of lower case 2119 keywords. Please =
consider using
>    the boilerplate from RFC 8174.
>=20
> This is clearly the intent. This change will be in the -22 version =
with RFC 8174 as a normative reference.
>=20
>=20
> 1.1.  Requirements notation
>=20
>   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
>   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
>   "OPTIONAL" in this document are to be interpreted as described in =
BCP
>   14 [RFC2119] [RFC8174] when, and only when, they appear in all
>   capitals, as shown here.
>=20

Thanks!

Ben.



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From nobody Wed Jan 24 06:47:45 2018
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Thanks for doing this work!!

All my comments (below) are non-blocking, but I would like to see them
addressed before publication.

(1) Please include in an explicit indication of what in rfc5340/rfc5838 is
Updated by this document.

(2) It seems to me that the setting of the U-bit is treated too lightly: "the
U-bit will be set"; maybe be more prescriptive: "the U-bit MUST be set".

(3) I'm confused, why is the N-bit needed?  The description indicates when to
use it, but is also says that the "advertising router MAY choose NOT to set
[it]", so it doesn't sound that important.  Further down, there are other
conditions when it is set...but no other text in the document about checking
it, or what happens if it is not set. Finally, the text gives an application
example: "identifying the prefixes corresponding to Node Segment Identifiers
(SIDs) in Segment Routing" -- I checked the reference, but didn't find a
mention of the N-bit there either.

(4) s/The IPv4 Forwarding Address TLV is The IPv4 Forwarding Address TLV/The
IPv4 Forwarding Address TLV

(5) s/IPv3/IPv4

(6) The figures in 3.10 and 3.11 have the wrong tittle.

(7) From 4.1:
   Depending on the implementation, it is perfectly valid for an E-
   Router-LSA to not contain any Router-Link TLVs.  However, this would
   imply that the OSPFv3 router doesn't have any active interfaces in
   the corresponding area and such E-Router-LSA would never be flooded
   to other OSPFv3 routers in the area.

I can imagine that a starting/restarting router could have a local E-Router-LSA
with no active interfaces, are there other cases?  What should a router do if
it receives an E-Router-LSA with no Router-Link TLVs?

(8) s/Inter-Area-Router-LSAE/Inter-Area-Router-LSA

(9) sparse mode is called "spare mode" in a couple of places...or maybe it's
the other way around. ;-)

(10) In many OSPF-related documents the Appendixes are Normative, so I'm
assuming they are Normative here too.  Only A and B are referenced from the
main text -- C is titled "Deprecated LSA Extension Backward Compatibility";
deprecated??  Does that mean that C is an old behavior that lived at some point
in the history of this document?  The content of C doesn't seem to conflict
with what is in A and B, and there is some important information there -- for
example the transition process in C.1.  But C.2. and C.3. clearly overlap with
A and B.  Please clarify the role of the Appendixes.

[The following comments are related to the Appendixes and their relevance
depends on my comment above.]

(11) The appendixes contain several places where the text says that a new
parameter "will be added" -- in reality this document adds those parameters. 
Please update.

(12) In Appendix B: s/If ExtendedLSASupport is enabled/If
AreaExtendedLSASupport is enabled

(13) "...disabling AreaExtendedLSASupport when ExtendedLSASupport is enabled is
contradictory and MAY be prohibited by the implementation."  I'm not sure I
understand this text.

Can AreaExtendedLSASupport be enabled without enabling ExtendedLSASupport?  I'm
assuming that's the case (from 6.1: "Individual OSPF Areas can be migrated
separately...accomplished by enabled AreaExtendedLSASupport").  If so, then the
text above is confusing...

If not prohibited by the implementation, what if it happens
(AreaExtendedLSASupport is disabled while ExtendedLSASupport is enabled)?  From
the previous paragraphs, it seems to me that the network could lose external
routes (if only Legacy LSAs have that information)-- is that true?

OTOH, what if the implementation does prohibit the state -- does that mean that
external routes will not be used if they're not derived from Legacy LSAs?  I
think the text could use some clarification.

(14) C.1.1. says that "The configuration of ExtendedLSASupport will apply to
AS-External LSAs even when AreaExtendedLSASupport takes precedence."  But
Appendix B says that "Legacy AS-Scoped LSAs will still be originated and used
for the AS External LSA computation."  That seems like a contradiction to me.

(15) In C.1.1 s/MixedModeOriginate/MixedModeOriginateOnly



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

* Section 3.10 and 3.11

What does the sub-TLV length mean here? Are values other than 4 and 16
permitted? If not, how is the packet treated (sub TLV is ignored?)



From nobody Wed Jan 24 09:19:09 2018
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--001a113d0466e7227d056388dbf4
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Here is the proposed charter for the LSR working group
that will be created from the SPF and ISIS working groups.

This is scheduled for internal review for the IESG telechat on February 8.

https://datatracker.ietf.org/doc/charter-ietf-lsr/

The Link-State Routing (LSR) Working Group is chartered to document current
protocol implementation practices and improvements, protocol usage
scenarios, maintenance and extensions of link-state routing interior
gateway protocols (IGPs) with a focus on IS-IS, OSPFv2, and OSPFv3.  The
LSR Working Group is formed by merging the isis and ospf WGs and will take
on all their existing adopted work at the time of chartering.

IS-IS is an IGP specified and standardized by ISO through ISO 10589:2002
and additional RFC standards with extensions to support IP that has been
deployed in the Internet for decades.  For the IS-IS protocol, LSR=E2=80=99=
s work
is focused on IP routing, currently based on the agreement in RFC 3563 with
ISO/JTC1/SC6. The LSR WG will interact with other standards bodies that
have responsible for standardizing IS-IS.

OSPFv2 [RFC 2328 and extensions], is an IGP that has been deployed in the
Internet for decades. OSPFv3 [RFC5340 and extensions] provides OSPF for
IPv6 and IPv4 [RFC5838] which can be delivered over IPv6 or IPv4 [RFC 7949]=
.

The LSR Working Group will generally manage its specific work items by
milestones agreed with the responsible Area Director.

The following topics are expected to be an initial focus:

1) Improving OSPF support for IPv6 and extensions using OSPFv3 LSA
Extendibility.
2) Extensions needed for Segment Routing and associated architectural
changes
3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions
4) Extensions for source-destination routing
[draft-ietf-rtgwg-dst-src-routing]
5) Potentially, extensions to better support specific network topologies
such as
ones commonly used in data centers.

The Link-State Routing (LSR) Working Group will coordinate with other
working groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to
understand the need for extensions and to confirm that the planned work
meets the needs.  LSR can coordinate with CCAMP and BIER on their
extensions to the LSR IGPs as useful.  LSR may coordinate with other WGs as
needed.

Regards,
Alia

--001a113d0466e7227d056388dbf4
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<div dir=3D"ltr">Here is the proposed charter for the LSR working group<div=
>that will be created from the SPF and ISIS working groups.</div><div><br><=
/div><div>This is scheduled for internal review for the IESG telechat on Fe=
bruary 8.</div><div><br></div><div><a href=3D"https://datatracker.ietf.org/=
doc/charter-ietf-lsr/">https://datatracker.ietf.org/doc/charter-ietf-lsr/</=
a><br></div><div><br></div><div><div>The Link-State Routing (LSR) Working G=
roup is chartered to document current protocol implementation practices and=
 improvements, protocol usage scenarios, maintenance and extensions of link=
-state routing interior gateway protocols (IGPs) with a focus on IS-IS, OSP=
Fv2, and OSPFv3.=C2=A0 The LSR Working Group is formed by merging the isis =
and ospf WGs and will take on all their existing adopted work at the time o=
f chartering.</div><div><br></div><div>IS-IS is an IGP specified and standa=
rdized by ISO through ISO 10589:2002 and additional RFC standards with exte=
nsions to support IP that has been deployed in the Internet for decades.=C2=
=A0 For the IS-IS protocol, LSR=E2=80=99s work is focused on IP routing, cu=
rrently based on the agreement in RFC 3563 with ISO/JTC1/SC6. The LSR WG wi=
ll interact with other standards bodies that have responsible for standardi=
zing IS-IS.</div><div><br></div><div>OSPFv2 [RFC 2328 and extensions], is a=
n IGP that has been deployed in the Internet for decades. OSPFv3 [RFC5340 a=
nd extensions] provides OSPF for IPv6 and IPv4 [RFC5838] which can be deliv=
ered over IPv6 or IPv4 [RFC 7949].</div><div><br></div><div>The LSR Working=
 Group will generally manage its specific work items by milestones agreed w=
ith the responsible Area Director.</div><div><br></div><div>The following t=
opics are expected to be an initial focus:</div><div>=C2=A0</div><div>1) Im=
proving OSPF support for IPv6 and extensions using OSPFv3 LSA Extendibility=
.</div><div>2) Extensions needed for Segment Routing and associated archite=
ctural changes</div><div>3) YANG models for IS-IS, OSPFv2, and OSPFv3 and e=
xtensions</div><div>4) Extensions for source-destination routing [draft-iet=
f-rtgwg-dst-src-routing]</div><div>5) Potentially, extensions to better sup=
port specific network topologies such as=C2=A0</div><div>ones commonly used=
 in data centers.</div><div><br></div><div>The Link-State Routing (LSR) Wor=
king Group will coordinate with other working groups, such as RTGWG, SPRING=
, MPLS, TEAS, V6OPS, and 6MAN, to understand the need for extensions and to=
 confirm that the planned work meets the needs.=C2=A0 LSR can coordinate wi=
th CCAMP and BIER on their extensions to the LSR IGPs as useful.=C2=A0 LSR =
may coordinate with other WGs as needed.</div></div><div><br></div><div>Reg=
ards,</div><div>Alia</div></div>

--001a113d0466e7227d056388dbf4--


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To: Alia Atlas <akatlas@gmail.com>, isis-wg@ietf.org, OSPF List <ospf@ietf.org>
References: <CAG4d1rfR5Y85T_wNSVXB0WL4C8THyAkgevr6DyH1xcO=R+sOVQ@mail.gmail.com>
From: Stewart Bryant <stewart.bryant@gmail.com>
Message-ID: <0ae3753a-9037-9199-e61d-b4e15089be73@gmail.com>
Date: Wed, 24 Jan 2018 17:32:07 +0000
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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Alia,

I think that this merger is long overdue, and hopefully it will help new 
features to be written in an aligned way.

I think the remit to perform general maintenance should slightly 
clarified since the way the charter is written they look like they are 
at a lower priority than the enumerated list.

I would have thought that "LSR can coordinate with CCAMP and BIER on 
their extensions " should have been more directive.

- Stewart

On 24/01/2018 17:18, Alia Atlas wrote:
> Here is the proposed charter for the LSR working group
> that will be created from the SPF and ISIS working groups.
>
> This is scheduled for internal review for the IESG telechat on February 8.
>
> https://datatracker.ietf.org/doc/charter-ietf-lsr/
>
> The Link-State Routing (LSR) Working Group is chartered to document 
> current protocol implementation practices and improvements, protocol 
> usage scenarios, maintenance and extensions of link-state routing 
> interior gateway protocols (IGPs) with a focus on IS-IS, OSPFv2, and 
> OSPFv3.  The LSR Working Group is formed by merging the isis and ospf 
> WGs and will take on all their existing adopted work at the time of 
> chartering.
>
> IS-IS is an IGP specified and standardized by ISO through ISO 
> 10589:2002 and additional RFC standards with extensions to support IP 
> that has been deployed in the Internet for decades.  For the IS-IS 
> protocol, LSR’s work is focused on IP routing, currently based on the 
> agreement in RFC 3563 with ISO/JTC1/SC6. The LSR WG will interact with 
> other standards bodies that have responsible for standardizing IS-IS.
>
> OSPFv2 [RFC 2328 and extensions], is an IGP that has been deployed in 
> the Internet for decades. OSPFv3 [RFC5340 and extensions] provides 
> OSPF for IPv6 and IPv4 [RFC5838] which can be delivered over IPv6 or 
> IPv4 [RFC 7949].
>
> The LSR Working Group will generally manage its specific work items by 
> milestones agreed with the responsible Area Director.
>
> The following topics are expected to be an initial focus:
> 1) Improving OSPF support for IPv6 and extensions using OSPFv3 LSA 
> Extendibility.
> 2) Extensions needed for Segment Routing and associated architectural 
> changes
> 3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions
> 4) Extensions for source-destination routing 
> [draft-ietf-rtgwg-dst-src-routing]
> 5) Potentially, extensions to better support specific network 
> topologies such as
> ones commonly used in data centers.
>
> The Link-State Routing (LSR) Working Group will coordinate with other 
> working groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to 
> understand the need for extensions and to confirm that the planned 
> work meets the needs.  LSR can coordinate with CCAMP and BIER on their 
> extensions to the LSR IGPs as useful.  LSR may coordinate with other 
> WGs as needed.
>
> Regards,
> Alia
>
>
> _______________________________________________
> Isis-wg mailing list
> Isis-wg@ietf.org
> https://www.ietf.org/mailman/listinfo/isis-wg


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  <body text="#000000" bgcolor="#FFFFFF">
    <p>Alia,<br>
    </p>
    I think that this merger is long overdue, and hopefully it will help
    new features to be written in an aligned way.<br>
    <br>
    I think the remit to perform general maintenance should slightly
    clarified since the way the charter is written they look like they
    are at a lower priority than the enumerated list.<br>
    <br>
    I would have thought that "LSR can coordinate with CCAMP and BIER on
    their extensions " should have been more directive. <br>
    <br>
    - Stewart<br>
    <br>
    <div class="moz-cite-prefix">On 24/01/2018 17:18, Alia Atlas wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAG4d1rfR5Y85T_wNSVXB0WL4C8THyAkgevr6DyH1xcO=R+sOVQ@mail.gmail.com">
      <div dir="ltr">Here is the proposed charter for the LSR working
        group
        <div>that will be created from the SPF and ISIS working groups.</div>
        <div><br>
        </div>
        <div>This is scheduled for internal review for the IESG telechat
          on February 8.</div>
        <div><br>
        </div>
        <div><a
            href="https://datatracker.ietf.org/doc/charter-ietf-lsr/"
            moz-do-not-send="true">https://datatracker.ietf.org/doc/charter-ietf-lsr/</a><br>
        </div>
        <div><br>
        </div>
        <div>
          <div>The Link-State Routing (LSR) Working Group is chartered
            to document current protocol implementation practices and
            improvements, protocol usage scenarios, maintenance and
            extensions of link-state routing interior gateway protocols
            (IGPs) with a focus on IS-IS, OSPFv2, and OSPFv3.  The LSR
            Working Group is formed by merging the isis and ospf WGs and
            will take on all their existing adopted work at the time of
            chartering.</div>
          <div><br>
          </div>
          <div>IS-IS is an IGP specified and standardized by ISO through
            ISO 10589:2002 and additional RFC standards with extensions
            to support IP that has been deployed in the Internet for
            decades.  For the IS-IS protocol, LSR’s work is focused on
            IP routing, currently based on the agreement in RFC 3563
            with ISO/JTC1/SC6. The LSR WG will interact with other
            standards bodies that have responsible for standardizing
            IS-IS.</div>
          <div><br>
          </div>
          <div>OSPFv2 [RFC 2328 and extensions], is an IGP that has been
            deployed in the Internet for decades. OSPFv3 [RFC5340 and
            extensions] provides OSPF for IPv6 and IPv4 [RFC5838] which
            can be delivered over IPv6 or IPv4 [RFC 7949].</div>
          <div><br>
          </div>
          <div>The LSR Working Group will generally manage its specific
            work items by milestones agreed with the responsible Area
            Director.</div>
          <div><br>
          </div>
          <div>The following topics are expected to be an initial focus:</div>
          <div> </div>
          <div>1) Improving OSPF support for IPv6 and extensions using
            OSPFv3 LSA Extendibility.</div>
          <div>2) Extensions needed for Segment Routing and associated
            architectural changes</div>
          <div>3) YANG models for IS-IS, OSPFv2, and OSPFv3 and
            extensions</div>
          <div>4) Extensions for source-destination routing
            [draft-ietf-rtgwg-dst-src-routing]</div>
          <div>5) Potentially, extensions to better support specific
            network topologies such as </div>
          <div>ones commonly used in data centers.</div>
          <div><br>
          </div>
          <div>The Link-State Routing (LSR) Working Group will
            coordinate with other working groups, such as RTGWG, SPRING,
            MPLS, TEAS, V6OPS, and 6MAN, to understand the need for
            extensions and to confirm that the planned work meets the
            needs.  LSR can coordinate with CCAMP and BIER on their
            extensions to the LSR IGPs as useful.  LSR may coordinate
            with other WGs as needed.</div>
        </div>
        <div><br>
        </div>
        <div>Regards,</div>
        <div>Alia</div>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
Isis-wg mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Isis-wg@ietf.org">Isis-wg@ietf.org</a>
<a class="moz-txt-link-freetext" href="https://www.ietf.org/mailman/listinfo/isis-wg">https://www.ietf.org/mailman/listinfo/isis-wg</a>
</pre>
    </blockquote>
    <br>
  </body>
</html>

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From: Alia Atlas <akatlas@gmail.com>
Date: Wed, 24 Jan 2018 12:42:26 -0500
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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Hi Stewart,

Thanks for the quick feedback.  Feel free to provide suggestions for text
changes if you have them.
You've certainly written enough charters :-)

Regards,
Alia

On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant <stewart.bryant@gmail.com>
wrote:

> Alia,
> I think that this merger is long overdue, and hopefully it will help new
> features to be written in an aligned way.
>
> I think the remit to perform general maintenance should slightly clarifie=
d
> since the way the charter is written they look like they are at a lower
> priority than the enumerated list.
>
> I would have thought that "LSR can coordinate with CCAMP and BIER on thei=
r
> extensions " should have been more directive.
>
> - Stewart
>
>
> On 24/01/2018 17:18, Alia Atlas wrote:
>
> Here is the proposed charter for the LSR working group
> that will be created from the SPF and ISIS working groups.
>
> This is scheduled for internal review for the IESG telechat on February 8=
.
>
> https://datatracker.ietf.org/doc/charter-ietf-lsr/
>
> The Link-State Routing (LSR) Working Group is chartered to document
> current protocol implementation practices and improvements, protocol usag=
e
> scenarios, maintenance and extensions of link-state routing interior
> gateway protocols (IGPs) with a focus on IS-IS, OSPFv2, and OSPFv3.  The
> LSR Working Group is formed by merging the isis and ospf WGs and will tak=
e
> on all their existing adopted work at the time of chartering.
>
> IS-IS is an IGP specified and standardized by ISO through ISO 10589:2002
> and additional RFC standards with extensions to support IP that has been
> deployed in the Internet for decades.  For the IS-IS protocol, LSR=E2=80=
=99s work
> is focused on IP routing, currently based on the agreement in RFC 3563 wi=
th
> ISO/JTC1/SC6. The LSR WG will interact with other standards bodies that
> have responsible for standardizing IS-IS.
>
> OSPFv2 [RFC 2328 and extensions], is an IGP that has been deployed in the
> Internet for decades. OSPFv3 [RFC5340 and extensions] provides OSPF for
> IPv6 and IPv4 [RFC5838] which can be delivered over IPv6 or IPv4 [RFC 794=
9].
>
> The LSR Working Group will generally manage its specific work items by
> milestones agreed with the responsible Area Director.
>
> The following topics are expected to be an initial focus:
>
> 1) Improving OSPF support for IPv6 and extensions using OSPFv3 LSA
> Extendibility.
> 2) Extensions needed for Segment Routing and associated architectural
> changes
> 3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions
> 4) Extensions for source-destination routing [draft-ietf-rtgwg-dst-src-
> routing]
> 5) Potentially, extensions to better support specific network topologies
> such as
> ones commonly used in data centers.
>
> The Link-State Routing (LSR) Working Group will coordinate with other
> working groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to
> understand the need for extensions and to confirm that the planned work
> meets the needs.  LSR can coordinate with CCAMP and BIER on their
> extensions to the LSR IGPs as useful.  LSR may coordinate with other WGs =
as
> needed.
>
> Regards,
> Alia
>
>
> _______________________________________________
> Isis-wg mailing listIsis-wg@ietf.orghttps://www.ietf.org/mailman/listinfo=
/isis-wg
>
>
>

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<div dir=3D"ltr">Hi Stewart,<div><br></div><div>Thanks for the quick feedba=
ck.=C2=A0 Feel free to provide suggestions for text changes if you have the=
m.</div><div>You&#39;ve certainly written enough charters :-)</div><div><br=
></div><div>Regards,</div><div>Alia</div></div><div class=3D"gmail_extra"><=
br><div class=3D"gmail_quote">On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bry=
ant <span dir=3D"ltr">&lt;<a href=3D"mailto:stewart.bryant@gmail.com" targe=
t=3D"_blank">stewart.bryant@gmail.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">
 =20
   =20
 =20
  <div text=3D"#000000" bgcolor=3D"#FFFFFF">
    <p>Alia,<br>
    </p>
    I think that this merger is long overdue, and hopefully it will help
    new features to be written in an aligned way.<br>
    <br>
    I think the remit to perform general maintenance should slightly
    clarified since the way the charter is written they look like they
    are at a lower priority than the enumerated list.<br>
    <br>
    I would have thought that &quot;LSR can coordinate with CCAMP and BIER =
on
    their extensions &quot; should have been more directive. <br>
    <br>
    - Stewart<div><div class=3D"h5"><br>
    <br>
    <div class=3D"m_3259456501520923354moz-cite-prefix">On 24/01/2018 17:18=
, Alia Atlas wrote:<br>
    </div>
    </div></div><blockquote type=3D"cite"><div><div class=3D"h5">
      <div dir=3D"ltr">Here is the proposed charter for the LSR working
        group
        <div>that will be created from the SPF and ISIS working groups.</di=
v>
        <div><br>
        </div>
        <div>This is scheduled for internal review for the IESG telechat
          on February 8.</div>
        <div><br>
        </div>
        <div><a href=3D"https://datatracker.ietf.org/doc/charter-ietf-lsr/"=
 target=3D"_blank">https://datatracker.ietf.org/<wbr>doc/charter-ietf-lsr/<=
/a><br>
        </div>
        <div><br>
        </div>
        <div>
          <div>The Link-State Routing (LSR) Working Group is chartered
            to document current protocol implementation practices and
            improvements, protocol usage scenarios, maintenance and
            extensions of link-state routing interior gateway protocols
            (IGPs) with a focus on IS-IS, OSPFv2, and OSPFv3.=C2=A0 The LSR
            Working Group is formed by merging the isis and ospf WGs and
            will take on all their existing adopted work at the time of
            chartering.</div>
          <div><br>
          </div>
          <div>IS-IS is an IGP specified and standardized by ISO through
            ISO 10589:2002 and additional RFC standards with extensions
            to support IP that has been deployed in the Internet for
            decades.=C2=A0 For the IS-IS protocol, LSR=E2=80=99s work is fo=
cused on
            IP routing, currently based on the agreement in RFC 3563
            with ISO/JTC1/SC6. The LSR WG will interact with other
            standards bodies that have responsible for standardizing
            IS-IS.</div>
          <div><br>
          </div>
          <div>OSPFv2 [RFC 2328 and extensions], is an IGP that has been
            deployed in the Internet for decades. OSPFv3 [RFC5340 and
            extensions] provides OSPF for IPv6 and IPv4 [RFC5838] which
            can be delivered over IPv6 or IPv4 [RFC 7949].</div>
          <div><br>
          </div>
          <div>The LSR Working Group will generally manage its specific
            work items by milestones agreed with the responsible Area
            Director.</div>
          <div><br>
          </div>
          <div>The following topics are expected to be an initial focus:</d=
iv>
          <div>=C2=A0</div>
          <div>1) Improving OSPF support for IPv6 and extensions using
            OSPFv3 LSA Extendibility.</div>
          <div>2) Extensions needed for Segment Routing and associated
            architectural changes</div>
          <div>3) YANG models for IS-IS, OSPFv2, and OSPFv3 and
            extensions</div>
          <div>4) Extensions for source-destination routing
            [draft-ietf-rtgwg-dst-src-<wbr>routing]</div>
          <div>5) Potentially, extensions to better support specific
            network topologies such as=C2=A0</div>
          <div>ones commonly used in data centers.</div>
          <div><br>
          </div>
          <div>The Link-State Routing (LSR) Working Group will
            coordinate with other working groups, such as RTGWG, SPRING,
            MPLS, TEAS, V6OPS, and 6MAN, to understand the need for
            extensions and to confirm that the planned work meets the
            needs.=C2=A0 LSR can coordinate with CCAMP and BIER on their
            extensions to the LSR IGPs as useful.=C2=A0 LSR may coordinate
            with other WGs as needed.</div>
        </div>
        <div><br>
        </div>
        <div>Regards,</div>
        <div>Alia</div>
      </div>
      <br>
      <fieldset class=3D"m_3259456501520923354mimeAttachmentHeader"></field=
set>
      <br>
      </div></div><pre>______________________________<wbr>_________________
Isis-wg mailing list
<a class=3D"m_3259456501520923354moz-txt-link-abbreviated" href=3D"mailto:I=
sis-wg@ietf.org" target=3D"_blank">Isis-wg@ietf.org</a>
<a class=3D"m_3259456501520923354moz-txt-link-freetext" href=3D"https://www=
.ietf.org/mailman/listinfo/isis-wg" target=3D"_blank">https://www.ietf.org/=
mailman/<wbr>listinfo/isis-wg</a>
</pre>
    </blockquote>
    <br>
  </div>

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

--f403043c41b4ca69150563892fc2--


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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Alia Atlas <akatlas@gmail.com>, Stewart Bryant <stewart.bryant@gmail.com>
CC: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
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--_000_5418BD5D9E5E49F1A44CFC60C3EDF391ciscocom_--


From nobody Wed Jan 24 09:56:36 2018
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From: Alvaro Retana <aretana.ietf@gmail.com>
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Subject: [OSPF] Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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Alvaro Retana has entered the following ballot position for
draft-ietf-ospf-link-overload-13: No Objection

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Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

I debated about filing my first comment as a DISCUSS [1], but decided against
it because it should be very easy to solve.  The rest are non-blocking comments.

(1) The following should be Normative references: rfc2119 and rfc6987 -- this
last one because MaxLinkMetric (which is defined there) is extensively used (as
a MUST) throughout the document.

(2) Section 3. (Flooding Scope) provides information about the flooding scope,
but only references for OSPFv2.  It would be nice if the references for OSPFv3
were included there as well.

(3) Section 4.5. mentions that a "new TLV called Graceful-Link-Shutdown is
defined" for BGP-LS, but there are no details on the format, etc.  The IANA
Considerations section suggests a value, not for a TLV but for an NLRI Type!

(4) Section 5: "The node that has the link to be taken out of service SHOULD
advertise the Graceful-Link-Shutdown sub-TLV..."  When would the node not
advertise the sub-TLV?  IOW, why is "MUST" not used?

(5) In 5.1: "MAX-TE-METRIC is a constant defined by this draft and set to
0xfffffffe."  Assuming that the intent is to define a new architectural
constant... I would rather see this constant defined separately (in it's own
section/sub-section with a formal definition) instead of "in passing" while
describing how to use it (a la MaxLinkMetric in rfc6987).

(6) 5.1 says that the metrics "MUST be set to MaxLinkMetric...and SHOULD be set
to MAX-TE-METRIC".  Why is there a difference?

(7) s/MAX_METRIC/MaxLinkMetric

[1] https://www.ietf.org/iesg/statement/discuss-criteria.html



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To: "Acee Lindem (acee)" <acee@cisco.com>, Alia Atlas <akatlas@gmail.com>
Cc: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
References: <CAG4d1rfR5Y85T_wNSVXB0WL4C8THyAkgevr6DyH1xcO=R+sOVQ@mail.gmail.com> <0ae3753a-9037-9199-e61d-b4e15089be73@gmail.com> <CAG4d1rfB_iBFMi2zvC=HKZ8PeP7U4ncVkXrGDm7cZvuo9EF6Sg@mail.gmail.com> <5418BD5D-9E5E-49F1-A44C-FC60C3EDF391@cisco.com>
From: Stewart Bryant <stewart.bryant@gmail.com>
Message-ID: <59176f74-28d1-416b-5737-91dbf6d3a833@gmail.com>
Date: Wed, 24 Jan 2018 18:01:20 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/wWrezJDLBIZPn5PcKpxurNv7Q8k>
Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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Yes that fixes that.

How about:

s/The following topics are expected to be an initial focus:/ In addition 
to ongoing maintenance, the following topics are expected to be an 
initial focus:/

I am just concerned that we need not to loose focus on work in progress.

- Stewart


On 24/01/2018 17:54, Acee Lindem (acee) wrote:
>
> How about:
>
> LSR will coordinate with CCAMP and BIER on their extensions to the LSR 
> IGPs as
>
> applicable to LSV protocol operation and scale.
>
> Thanks,
>
> Acee
>
> *From: *Isis-wg <isis-wg-bounces@ietf.org> on behalf of Alia Atlas 
> <akatlas@gmail.com>
> *Date: *Wednesday, January 24, 2018 at 12:42 PM
> *To: *Stewart Bryant <stewart.bryant@gmail.com>
> *Cc: *OSPF WG List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
> *Subject: *Re: [Isis-wg] Link-State Routing WG charter
>
> Hi Stewart,
>
> Thanks for the quick feedback.  Feel free to provide suggestions for 
> text changes if you have them.
>
> You've certainly written enough charters :-)
>
> Regards,
>
> Alia
>
> On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant 
> <stewart.bryant@gmail.com<mailto:stewart.bryant@gmail.com>> wrote:
>
>     Alia,
>
>     I think that this merger is long overdue, and hopefully it will
>     help new features to be written in an aligned way.
>
>     I think the remit to perform general maintenance should slightly
>     clarified since the way the charter is written they look like they
>     are at a lower priority than the enumerated list.
>
>     I would have thought that "LSR can coordinate with CCAMP and BIER
>     on their extensions " should have been more directive.
>
>     - Stewart
>
>     On 24/01/2018 17:18, Alia Atlas wrote:
>
>         Here is the proposed charter for the LSR working group
>
>         that will be created from the SPF and ISIS working groups.
>
>         This is scheduled for internal review for the IESG telechat on
>         February 8.
>
>         https://datatracker.ietf.org/doc/charter-ietf-lsr/
>
>         The Link-State Routing (LSR) Working Group is chartered to
>         document current protocol implementation practices and
>         improvements, protocol usage scenarios, maintenance and
>         extensions of link-state routing interior gateway protocols
>         (IGPs) with a focus on IS-IS, OSPFv2, and OSPFv3.  The LSR
>         Working Group is formed by merging the isis and ospf WGs and
>         will take on all their existing adopted work at the time of
>         chartering.
>
>         IS-IS is an IGP specified and standardized by ISO through ISO
>         10589:2002 and additional RFC standards with extensions to
>         support IP that has been deployed in the Internet for
>         decades.  For the IS-IS protocol, LSR’s work is focused on IP
>         routing, currently based on the agreement in RFC 3563 with
>         ISO/JTC1/SC6. The LSR WG will interact with other standards
>         bodies that have responsible for standardizing IS-IS.
>
>         OSPFv2 [RFC 2328 and extensions], is an IGP that has been
>         deployed in the Internet for decades. OSPFv3 [RFC5340 and
>         extensions] provides OSPF for IPv6 and IPv4 [RFC5838] which
>         can be delivered over IPv6 or IPv4 [RFC 7949].
>
>         The LSR Working Group will generally manage its specific work
>         items by milestones agreed with the responsible Area Director.
>
>         The following topics are expected to be an initial focus:
>
>         1) Improving OSPF support for IPv6 and extensions using OSPFv3
>         LSA Extendibility.
>
>         2) Extensions needed for Segment Routing and associated
>         architectural changes
>
>         3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions
>
>         4) Extensions for source-destination routing
>         [draft-ietf-rtgwg-dst-src-routing]
>
>         5) Potentially, extensions to better support specific network
>         topologies such as
>
>         ones commonly used in data centers.
>
>         The Link-State Routing (LSR) Working Group will coordinate
>         with other working groups, such as RTGWG, SPRING, MPLS, TEAS,
>         V6OPS, and 6MAN, to understand the need for extensions and to
>         confirm that the planned work meets the needs.  LSR can
>         coordinate with CCAMP and BIER on their extensions to the LSR
>         IGPs as useful.  LSR may coordinate with other WGs as needed.
>
>         Regards,
>
>         Alia
>
>
>
>         _______________________________________________
>
>         Isis-wg mailing list
>
>         Isis-wg@ietf.org<mailto:Isis-wg@ietf.org>
>
>         https://www.ietf.org/mailman/listinfo/isis-wg
>


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    <p>Yes that fixes that.</p>
    <p>How about:</p>
    <p>s/<span style="mso-bookmark:_MailOriginalBody">The following
        topics are expected to be an initial focus:/ </span><span
        style="mso-bookmark:_MailOriginalBody"><span
          style="mso-bookmark:_MailOriginalBody">In addition to ongoing
          maintenance, the following topics are expected to be an
          initial focus:/</span></span></p>
    <p><span style="mso-bookmark:_MailOriginalBody"><span
          style="mso-bookmark:_MailOriginalBody">I am just concerned
          that we need not to loose focus on work in progress.<br>
        </span></span></p>
    <p><span style="mso-bookmark:_MailOriginalBody"><span
          style="mso-bookmark:_MailOriginalBody">- Stewart<br>
        </span></span></p>
    <br>
    <div class="moz-cite-prefix">On 24/01/2018 17:54, Acee Lindem (acee)
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:5418BD5D-9E5E-49F1-A44C-FC60C3EDF391@cisco.com">
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      <div class="WordSection1">
        <p class="MsoNormal">How about:<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:&quot;Courier New&quot;">LSR
            will coordinate with CCAMP and BIER on their extensions to
            the LSR IGPs as<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:&quot;Courier New&quot;">applicable
            to LSV protocol operation and scale. <o:p></o:p></span></p>
        <p class="MsoNormal"><o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Thanks,<o:p></o:p></p>
        <p class="MsoNormal">Acee <o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div style="border:none;border-top:solid #B5C4DF
          1.0pt;padding:3.0pt 0in 0in 0in">
          <p class="MsoNormal" style="margin-left:.5in"><b><span
                style="font-size:12.0pt;color:black">From:
              </span></b><span style="font-size:12.0pt;color:black">Isis-wg
              <a class="moz-txt-link-rfc2396E" href="mailto:isis-wg-bounces@ietf.org">&lt;isis-wg-bounces@ietf.org&gt;</a> on behalf of Alia Atlas
              <a class="moz-txt-link-rfc2396E" href="mailto:akatlas@gmail.com">&lt;akatlas@gmail.com&gt;</a><br>
              <b>Date: </b>Wednesday, January 24, 2018 at 12:42 PM<br>
              <b>To: </b>Stewart Bryant
              <a class="moz-txt-link-rfc2396E" href="mailto:stewart.bryant@gmail.com">&lt;stewart.bryant@gmail.com&gt;</a><br>
              <b>Cc: </b>OSPF WG List <a class="moz-txt-link-rfc2396E" href="mailto:ospf@ietf.org">&lt;ospf@ietf.org&gt;</a>,
              <a class="moz-txt-link-rfc2396E" href="mailto:isis-wg@ietf.org">"isis-wg@ietf.org"</a> <a class="moz-txt-link-rfc2396E" href="mailto:isis-wg@ietf.org">&lt;isis-wg@ietf.org&gt;</a><br>
              <b>Subject: </b>Re: [Isis-wg] Link-State Routing WG
              charter<o:p></o:p></span></p>
        </div>
        <div>
          <p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
        </div>
        <div>
          <p class="MsoNormal" style="margin-left:.5in"><a
              name="_MailOriginalBody" moz-do-not-send="true">Hi
              Stewart,
              <o:p></o:p></a></p>
          <div>
            <p class="MsoNormal" style="margin-left:.5in"><span
                style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
          </div>
          <div>
            <p class="MsoNormal" style="margin-left:.5in"><span
                style="mso-bookmark:_MailOriginalBody">Thanks for the
                quick feedback.  Feel free to provide suggestions for
                text changes if you have them.<o:p></o:p></span></p>
          </div>
          <div>
            <p class="MsoNormal" style="margin-left:.5in"><span
                style="mso-bookmark:_MailOriginalBody">You've certainly
                written enough charters :-)<o:p></o:p></span></p>
          </div>
          <div>
            <p class="MsoNormal" style="margin-left:.5in"><span
                style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
          </div>
          <div>
            <p class="MsoNormal" style="margin-left:.5in"><span
                style="mso-bookmark:_MailOriginalBody">Regards,<o:p></o:p></span></p>
          </div>
          <div>
            <p class="MsoNormal" style="margin-left:.5in"><span
                style="mso-bookmark:_MailOriginalBody">Alia<o:p></o:p></span></p>
          </div>
        </div>
        <div>
          <p class="MsoNormal" style="margin-left:.5in"><span
              style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
          <div>
            <p class="MsoNormal" style="margin-left:.5in"><span
                style="mso-bookmark:_MailOriginalBody">On Wed, Jan 24,
                2018 at 12:32 PM, Stewart Bryant &lt;</span><a
                href="mailto:stewart.bryant@gmail.com" target="_blank"
                moz-do-not-send="true"><span
                  style="mso-bookmark:_MailOriginalBody">stewart.bryant@gmail.com</span><span
                  style="mso-bookmark:_MailOriginalBody"></span></a><span
                style="mso-bookmark:_MailOriginalBody">&gt; wrote:<o:p></o:p></span></p>
            <blockquote style="border:none;border-left:solid #CCCCCC
              1.0pt;padding:0in 0in 0in
              6.0pt;margin-left:4.8pt;margin-right:0in">
              <div>
                <p style="margin-left:.5in"><span
                    style="mso-bookmark:_MailOriginalBody">Alia,<o:p></o:p></span></p>
                <p class="MsoNormal" style="margin-left:.5in"><span
                    style="mso-bookmark:_MailOriginalBody">I think that
                    this merger is long overdue, and hopefully it will
                    help new features to be written in an aligned way.<br>
                    <br>
                    I think the remit to perform general maintenance
                    should slightly clarified since the way the charter
                    is written they look like they are at a lower
                    priority than the enumerated list.<br>
                    <br>
                    I would have thought that "LSR can coordinate with
                    CCAMP and BIER on their extensions " should have
                    been more directive.
                    <br>
                    <br>
                    - Stewart <o:p></o:p></span></p>
                <div>
                  <div>
                    <p class="MsoNormal"
style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in"><span
                        style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
                    <div>
                      <p class="MsoNormal" style="margin-left:.5in"><span
                          style="mso-bookmark:_MailOriginalBody">On
                          24/01/2018 17:18, Alia Atlas wrote:<o:p></o:p></span></p>
                    </div>
                  </div>
                </div>
                <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
                  <div>
                    <div>
                      <div>
                        <p class="MsoNormal" style="margin-left:.5in"><span
                            style="mso-bookmark:_MailOriginalBody">Here
                            is the proposed charter for the LSR working
                            group
                            <o:p></o:p></span></p>
                        <div>
                          <p class="MsoNormal" style="margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody">that
                              will be created from the SPF and ISIS
                              working groups.<o:p></o:p></span></p>
                        </div>
                        <div>
                          <p class="MsoNormal" style="margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
                        </div>
                        <div>
                          <p class="MsoNormal" style="margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody">This
                              is scheduled for internal review for the
                              IESG telechat on February 8.<o:p></o:p></span></p>
                        </div>
                        <div>
                          <p class="MsoNormal" style="margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
                        </div>
                        <div>
                          <p class="MsoNormal" style="margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody"></span><a
href="https://datatracker.ietf.org/doc/charter-ietf-lsr/"
                              target="_blank" moz-do-not-send="true"><span
                                style="mso-bookmark:_MailOriginalBody">https://datatracker.ietf.org/doc/charter-ietf-lsr/</span><span
                                style="mso-bookmark:_MailOriginalBody"></span></a><span
                              style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></p>
                        </div>
                        <div>
                          <p class="MsoNormal" style="margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
                        </div>
                        <div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">The
                                Link-State Routing (LSR) Working Group
                                is chartered to document current
                                protocol implementation practices and
                                improvements, protocol usage scenarios,
                                maintenance and extensions of link-state
                                routing interior gateway protocols
                                (IGPs) with a focus on IS-IS, OSPFv2,
                                and OSPFv3.  The LSR Working Group is
                                formed by merging the isis and ospf WGs
                                and will take on all their existing
                                adopted work at the time of chartering.<o:p></o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">IS-IS
                                is an IGP specified and standardized by
                                ISO through ISO 10589:2002 and
                                additional RFC standards with extensions
                                to support IP that has been deployed in
                                the Internet for decades.  For the IS-IS
                                protocol, LSR’s work is focused on IP
                                routing, currently based on the
                                agreement in RFC 3563 with ISO/JTC1/SC6.
                                The LSR WG will interact with other
                                standards bodies that have responsible
                                for standardizing IS-IS.<o:p></o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">OSPFv2
                                [RFC 2328 and extensions], is an IGP
                                that has been deployed in the Internet
                                for decades. OSPFv3 [RFC5340 and
                                extensions] provides OSPF for IPv6 and
                                IPv4 [RFC5838] which can be delivered
                                over IPv6 or IPv4 [RFC 7949].<o:p></o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">The
                                LSR Working Group will generally manage
                                its specific work items by milestones
                                agreed with the responsible Area
                                Director.<o:p></o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">The
                                following topics are expected to be an
                                initial focus:<o:p></o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">1)
                                Improving OSPF support for IPv6 and
                                extensions using OSPFv3 LSA
                                Extendibility.<o:p></o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">2)
                                Extensions needed for Segment Routing
                                and associated architectural changes<o:p></o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">3)
                                YANG models for IS-IS, OSPFv2, and
                                OSPFv3 and extensions<o:p></o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">4)
                                Extensions for source-destination
                                routing
                                [draft-ietf-rtgwg-dst-src-routing]<o:p></o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">5)
                                Potentially, extensions to better
                                support specific network topologies such
                                as <o:p></o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">ones
                                commonly used in data centers.<o:p></o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
                          </div>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">The
                                Link-State Routing (LSR) Working Group
                                will coordinate with other working
                                groups, such as RTGWG, SPRING, MPLS,
                                TEAS, V6OPS, and 6MAN, to understand the
                                need for extensions and to confirm that
                                the planned work meets the needs.  LSR
                                can coordinate with CCAMP and BIER on
                                their extensions to the LSR IGPs as
                                useful.  LSR may coordinate with other
                                WGs as needed.<o:p></o:p></span></p>
                          </div>
                        </div>
                        <div>
                          <p class="MsoNormal" style="margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
                        </div>
                        <div>
                          <p class="MsoNormal" style="margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody">Regards,<o:p></o:p></span></p>
                        </div>
                        <div>
                          <p class="MsoNormal" style="margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody">Alia<o:p></o:p></span></p>
                        </div>
                      </div>
                      <p class="MsoNormal" style="margin-left:.5in"><span
                          style="mso-bookmark:_MailOriginalBody"><br>
                          <br>
                          <o:p></o:p></span></p>
                    </div>
                  </div>
                  <pre style="margin-left:.5in"><span style="mso-bookmark:_MailOriginalBody">_______________________________________________<o:p></o:p></span></pre>
                  <pre style="margin-left:.5in"><span style="mso-bookmark:_MailOriginalBody">Isis-wg mailing list<o:p></o:p></span></pre>
                  <pre style="margin-left:.5in"><span style="mso-bookmark:_MailOriginalBody"></span><a href="mailto:Isis-wg@ietf.org" target="_blank" moz-do-not-send="true"><span style="mso-bookmark:_MailOriginalBody">Isis-wg@ietf.org</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
                  <pre style="margin-left:.5in"><span style="mso-bookmark:_MailOriginalBody"></span><a href="https://www.ietf.org/mailman/listinfo/isis-wg" target="_blank" moz-do-not-send="true"><span style="mso-bookmark:_MailOriginalBody">https://www.ietf.org/mailman/listinfo/isis-wg</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
                </blockquote>
                <p class="MsoNormal" style="margin-left:.5in"><span
                    style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
              </div>
            </blockquote>
          </div>
          <p class="MsoNormal" style="margin-left:.5in"><span
              style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
        </div>
      </div>
    </blockquote>
    <br>
  </body>
</html>

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From: Alia Atlas <akatlas@gmail.com>
Date: Wed, 24 Jan 2018 13:01:57 -0500
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To: Stewart Bryant <stewart.bryant@gmail.com>
Cc: "Acee Lindem (acee)" <acee@cisco.com>, OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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Sounds good to both.

Thanks,
Alia

On Wed, Jan 24, 2018 at 1:01 PM, Stewart Bryant <stewart.bryant@gmail.com>
wrote:

> Yes that fixes that.
>
> How about:
>
> s/The following topics are expected to be an initial focus:/ In addition
> to ongoing maintenance, the following topics are expected to be an initia=
l
> focus:/
>
> I am just concerned that we need not to loose focus on work in progress.
>
> - Stewart
>
> On 24/01/2018 17:54, Acee Lindem (acee) wrote:
>
> How about:
>
>
>
> LSR will coordinate with CCAMP and BIER on their extensions to the LSR
> IGPs as
>
> applicable to LSV protocol operation and scale.
>
>
>
> Thanks,
>
> Acee
>
>
>
> *From: *Isis-wg <isis-wg-bounces@ietf.org> <isis-wg-bounces@ietf.org> on
> behalf of Alia Atlas <akatlas@gmail.com> <akatlas@gmail.com>
> *Date: *Wednesday, January 24, 2018 at 12:42 PM
> *To: *Stewart Bryant <stewart.bryant@gmail.com> <stewart.bryant@gmail.com=
>
> *Cc: *OSPF WG List <ospf@ietf.org> <ospf@ietf.org>, "isis-wg@ietf.org"
> <isis-wg@ietf.org> <isis-wg@ietf.org> <isis-wg@ietf.org>
> *Subject: *Re: [Isis-wg] Link-State Routing WG charter
>
>
>
> Hi Stewart,
>
>
>
> Thanks for the quick feedback.  Feel free to provide suggestions for text
> changes if you have them.
>
> You've certainly written enough charters :-)
>
>
>
> Regards,
>
> Alia
>
>
>
> On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant <stewart.bryant@gmail.co=
m>
> wrote:
>
> Alia,
>
> I think that this merger is long overdue, and hopefully it will help new
> features to be written in an aligned way.
>
> I think the remit to perform general maintenance should slightly clarifie=
d
> since the way the charter is written they look like they are at a lower
> priority than the enumerated list.
>
> I would have thought that "LSR can coordinate with CCAMP and BIER on thei=
r
> extensions " should have been more directive.
>
> - Stewart
>
>
>
> On 24/01/2018 17:18, Alia Atlas wrote:
>
> Here is the proposed charter for the LSR working group
>
> that will be created from the SPF and ISIS working groups.
>
>
>
> This is scheduled for internal review for the IESG telechat on February 8=
.
>
>
>
> https://datatracker.ietf.org/doc/charter-ietf-lsr/
>
>
>
> The Link-State Routing (LSR) Working Group is chartered to document
> current protocol implementation practices and improvements, protocol usag=
e
> scenarios, maintenance and extensions of link-state routing interior
> gateway protocols (IGPs) with a focus on IS-IS, OSPFv2, and OSPFv3.  The
> LSR Working Group is formed by merging the isis and ospf WGs and will tak=
e
> on all their existing adopted work at the time of chartering.
>
>
>
> IS-IS is an IGP specified and standardized by ISO through ISO 10589:2002
> and additional RFC standards with extensions to support IP that has been
> deployed in the Internet for decades.  For the IS-IS protocol, LSR=E2=80=
=99s work
> is focused on IP routing, currently based on the agreement in RFC 3563 wi=
th
> ISO/JTC1/SC6. The LSR WG will interact with other standards bodies that
> have responsible for standardizing IS-IS.
>
>
>
> OSPFv2 [RFC 2328 and extensions], is an IGP that has been deployed in the
> Internet for decades. OSPFv3 [RFC5340 and extensions] provides OSPF for
> IPv6 and IPv4 [RFC5838] which can be delivered over IPv6 or IPv4 [RFC 794=
9].
>
>
>
> The LSR Working Group will generally manage its specific work items by
> milestones agreed with the responsible Area Director.
>
>
>
> The following topics are expected to be an initial focus:
>
>
>
> 1) Improving OSPF support for IPv6 and extensions using OSPFv3 LSA
> Extendibility.
>
> 2) Extensions needed for Segment Routing and associated architectural
> changes
>
> 3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions
>
> 4) Extensions for source-destination routing [draft-ietf-rtgwg-dst-src-
> routing]
>
> 5) Potentially, extensions to better support specific network topologies
> such as
>
> ones commonly used in data centers.
>
>
>
> The Link-State Routing (LSR) Working Group will coordinate with other
> working groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to
> understand the need for extensions and to confirm that the planned work
> meets the needs.  LSR can coordinate with CCAMP and BIER on their
> extensions to the LSR IGPs as useful.  LSR may coordinate with other WGs =
as
> needed.
>
>
>
> Regards,
>
> Alia
>
>
>
> _______________________________________________
>
> Isis-wg mailing list
>
> Isis-wg@ietf.org
>
> https://www.ietf.org/mailman/listinfo/isis-wg
>
>
>
>
>
>
>

--001a113e15d696f1c605638975f9
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Sounds good to both.<div><br></div><div>Thanks,</div><div>=
Alia</div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">O=
n Wed, Jan 24, 2018 at 1:01 PM, Stewart Bryant <span dir=3D"ltr">&lt;<a hre=
f=3D"mailto:stewart.bryant@gmail.com" target=3D"_blank">stewart.bryant@gmai=
l.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"m=
argin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
 =20
   =20
 =20
  <div text=3D"#000000" bgcolor=3D"#FFFFFF">
    <p>Yes that fixes that.</p>
    <p>How about:</p>
    <p>s/<span>The following
        topics are expected to be an initial focus:/ </span><span><span>In =
addition to ongoing
          maintenance, the following topics are expected to be an
          initial focus:/</span></span></p>
    <p><span><span>I am just concerned
          that we need not to loose focus on work in progress.<span class=
=3D"HOEnZb"><font color=3D"#888888"><br>
        </font></span></span></span></p><span class=3D"HOEnZb"><font color=
=3D"#888888">
    <p><span><span>- Stewart<br>
        </span></span></p></font></span><div><div class=3D"h5">
    <br>
    <div class=3D"m_9087683388451559136moz-cite-prefix">On 24/01/2018 17:54=
, Acee Lindem (acee)
      wrote:<br>
    </div>
    <blockquote type=3D"cite">
     =20
     =20
     =20
      <div class=3D"m_9087683388451559136WordSection1">
        <p class=3D"MsoNormal">How about:<u></u><u></u></p>
        <p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
        <p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:=
&quot;Courier New&quot;">LSR
            will coordinate with CCAMP and BIER on their extensions to
            the LSR IGPs as<u></u><u></u></span></p>
        <p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:=
&quot;Courier New&quot;">applicable
            to LSV protocol operation and scale.=C2=A0<u></u><u></u></span>=
</p>
        <p class=3D"MsoNormal"><u></u><u></u></p>
        <p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
        <p class=3D"MsoNormal">Thanks,<u></u><u></u></p>
        <p class=3D"MsoNormal">Acee <u></u><u></u></p>
        <p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
        <div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.=
0pt 0in 0in 0in">
          <p class=3D"MsoNormal" 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">Isis-=
wg
              <a class=3D"m_9087683388451559136moz-txt-link-rfc2396E" href=
=3D"mailto:isis-wg-bounces@ietf.org" target=3D"_blank">&lt;isis-wg-bounces@=
ietf.org&gt;</a> on behalf of Alia Atlas
              <a class=3D"m_9087683388451559136moz-txt-link-rfc2396E" href=
=3D"mailto:akatlas@gmail.com" target=3D"_blank">&lt;akatlas@gmail.com&gt;</=
a><br>
              <b>Date: </b>Wednesday, January 24, 2018 at 12:42 PM<br>
              <b>To: </b>Stewart Bryant
              <a class=3D"m_9087683388451559136moz-txt-link-rfc2396E" href=
=3D"mailto:stewart.bryant@gmail.com" target=3D"_blank">&lt;stewart.bryant@g=
mail.com&gt;</a><br>
              <b>Cc: </b>OSPF WG List <a class=3D"m_9087683388451559136moz-=
txt-link-rfc2396E" href=3D"mailto:ospf@ietf.org" target=3D"_blank">&lt;ospf=
@ietf.org&gt;</a>,
              <a class=3D"m_9087683388451559136moz-txt-link-rfc2396E" href=
=3D"mailto:isis-wg@ietf.org" target=3D"_blank">&quot;isis-wg@ietf.org&quot;=
</a> <a class=3D"m_9087683388451559136moz-txt-link-rfc2396E" href=3D"mailto=
:isis-wg@ietf.org" target=3D"_blank">&lt;isis-wg@ietf.org&gt;</a><br>
              <b>Subject: </b>Re: [Isis-wg] Link-State Routing WG
              charter<u></u><u></u></span></p>
        </div>
        <div>
          <p class=3D"MsoNormal" style=3D"margin-left:.5in"><u></u>=C2=A0<u=
></u></p>
        </div>
        <div>
          <p class=3D"MsoNormal" style=3D"margin-left:.5in"><a name=3D"m_90=
87683388451559136__MailOriginalBody">Hi
              Stewart,
              <u></u><u></u></a></p>
          <div>
            <p class=3D"MsoNormal" style=3D"margin-left:.5in"><span><u></u>=
=C2=A0<u></u></span></p>
          </div>
          <div>
            <p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>Thanks =
for the
                quick feedback.=C2=A0 Feel free to provide suggestions for
                text changes if you have them.<u></u><u></u></span></p>
          </div>
          <div>
            <p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>You&#39=
;ve certainly
                written enough charters :-)<u></u><u></u></span></p>
          </div>
          <div>
            <p class=3D"MsoNormal" style=3D"margin-left:.5in"><span><u></u>=
=C2=A0<u></u></span></p>
          </div>
          <div>
            <p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>Regards=
,<u></u><u></u></span></p>
          </div>
          <div>
            <p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>Alia<u>=
</u><u></u></span></p>
          </div>
        </div>
        <div>
          <p class=3D"MsoNormal" style=3D"margin-left:.5in"><span><u></u>=
=C2=A0<u></u></span></p>
          <div>
            <p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>On Wed,=
 Jan 24,
                2018 at 12:32 PM, Stewart Bryant &lt;</span><a href=3D"mail=
to:stewart.bryant@gmail.com" target=3D"_blank"><span>stewart.bryant@gmail.c=
om</span><span></span></a><span>&gt; wrote:<u></u><u></u></span></p>
            <blockquote style=3D"border:none;border-left:solid #cccccc 1.0p=
t;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
              <div>
                <p style=3D"margin-left:.5in"><span>Alia,<u></u><u></u></sp=
an></p>
                <p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>I t=
hink that
                    this merger is long overdue, and hopefully it will
                    help new features to be written in an aligned way.<br>
                    <br>
                    I think the remit to perform general maintenance
                    should slightly clarified since the way the charter
                    is written they look like they are at a lower
                    priority than the enumerated list.<br>
                    <br>
                    I would have thought that &quot;LSR can coordinate with
                    CCAMP and BIER on their extensions &quot; should have
                    been more directive.
                    <br>
                    <br>
                    - Stewart <u></u><u></u></span></p>
                <div>
                  <div>
                    <p class=3D"MsoNormal" style=3D"margin-right:0in;margin=
-bottom:12.0pt;margin-left:.5in"><span><u></u>=C2=A0<u></u></span></p>
                    <div>
                      <p class=3D"MsoNormal" style=3D"margin-left:.5in"><sp=
an>On
                          24/01/2018 17:18, Alia Atlas wrote:<u></u><u></u>=
</span></p>
                    </div>
                  </div>
                </div>
                <blockquote style=3D"margin-top:5.0pt;margin-bottom:5.0pt">
                  <div>
                    <div>
                      <div>
                        <p class=3D"MsoNormal" style=3D"margin-left:.5in"><=
span>Here
                            is the proposed charter for the LSR working
                            group
                            <u></u><u></u></span></p>
                        <div>
                          <p class=3D"MsoNormal" style=3D"margin-left:.5in"=
><span>that
                              will be created from the SPF and ISIS
                              working groups.<u></u><u></u></span></p>
                        </div>
                        <div>
                          <p class=3D"MsoNormal" style=3D"margin-left:.5in"=
><span><u></u>=C2=A0<u></u></span></p>
                        </div>
                        <div>
                          <p class=3D"MsoNormal" style=3D"margin-left:.5in"=
><span>This
                              is scheduled for internal review for the
                              IESG telechat on February 8.<u></u><u></u></s=
pan></p>
                        </div>
                        <div>
                          <p class=3D"MsoNormal" style=3D"margin-left:.5in"=
><span><u></u>=C2=A0<u></u></span></p>
                        </div>
                        <div>
                          <p class=3D"MsoNormal" style=3D"margin-left:.5in"=
><span></span><a href=3D"https://datatracker.ietf.org/doc/charter-ietf-lsr/=
" target=3D"_blank"><span>https://datatracker.ietf.org/<wbr>doc/charter-iet=
f-lsr/</span><span></span></a><span><u></u><u></u></span></p>
                        </div>
                        <div>
                          <p class=3D"MsoNormal" style=3D"margin-left:.5in"=
><span><u></u>=C2=A0<u></u></span></p>
                        </div>
                        <div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>The
                                Link-State Routing (LSR) Working Group
                                is chartered to document current
                                protocol implementation practices and
                                improvements, protocol usage scenarios,
                                maintenance and extensions of link-state
                                routing interior gateway protocols
                                (IGPs) with a focus on IS-IS, OSPFv2,
                                and OSPFv3.=C2=A0 The LSR Working Group is
                                formed by merging the isis and ospf WGs
                                and will take on all their existing
                                adopted work at the time of chartering.<u><=
/u><u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span><u></u>=C2=A0<u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>IS-IS
                                is an IGP specified and standardized by
                                ISO through ISO 10589:2002 and
                                additional RFC standards with extensions
                                to support IP that has been deployed in
                                the Internet for decades.=C2=A0 For the IS-=
IS
                                protocol, LSR=E2=80=99s work is focused on =
IP
                                routing, currently based on the
                                agreement in RFC 3563 with ISO/JTC1/SC6.
                                The LSR WG will interact with other
                                standards bodies that have responsible
                                for standardizing IS-IS.<u></u><u></u></spa=
n></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span><u></u>=C2=A0<u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>OSPFv2
                                [RFC 2328 and extensions], is an IGP
                                that has been deployed in the Internet
                                for decades. OSPFv3 [RFC5340 and
                                extensions] provides OSPF for IPv6 and
                                IPv4 [RFC5838] which can be delivered
                                over IPv6 or IPv4 [RFC 7949].<u></u><u></u>=
</span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span><u></u>=C2=A0<u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>The
                                LSR Working Group will generally manage
                                its specific work items by milestones
                                agreed with the responsible Area
                                Director.<u></u><u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span><u></u>=C2=A0<u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>The
                                following topics are expected to be an
                                initial focus:<u></u><u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>=C2=A0<u></u><u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>1)
                                Improving OSPF support for IPv6 and
                                extensions using OSPFv3 LSA
                                Extendibility.<u></u><u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>2)
                                Extensions needed for Segment Routing
                                and associated architectural changes<u></u>=
<u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>3)
                                YANG models for IS-IS, OSPFv2, and
                                OSPFv3 and extensions<u></u><u></u></span><=
/p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>4)
                                Extensions for source-destination
                                routing
                                [draft-ietf-rtgwg-dst-src-<wbr>routing]<u><=
/u><u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>5)
                                Potentially, extensions to better
                                support specific network topologies such
                                as=C2=A0<u></u><u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>ones
                                commonly used in data centers.<u></u><u></u=
></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span><u></u>=C2=A0<u></u></span></p>
                          </div>
                          <div>
                            <p class=3D"MsoNormal" style=3D"margin-left:.5i=
n"><span>The
                                Link-State Routing (LSR) Working Group
                                will coordinate with other working
                                groups, such as RTGWG, SPRING, MPLS,
                                TEAS, V6OPS, and 6MAN, to understand the
                                need for extensions and to confirm that
                                the planned work meets the needs.=C2=A0 LSR
                                can coordinate with CCAMP and BIER on
                                their extensions to the LSR IGPs as
                                useful.=C2=A0 LSR may coordinate with other
                                WGs as needed.<u></u><u></u></span></p>
                          </div>
                        </div>
                        <div>
                          <p class=3D"MsoNormal" style=3D"margin-left:.5in"=
><span><u></u>=C2=A0<u></u></span></p>
                        </div>
                        <div>
                          <p class=3D"MsoNormal" style=3D"margin-left:.5in"=
><span>Regards,<u></u><u></u></span></p>
                        </div>
                        <div>
                          <p class=3D"MsoNormal" style=3D"margin-left:.5in"=
><span>Alia<u></u><u></u></span></p>
                        </div>
                      </div>
                      <p class=3D"MsoNormal" style=3D"margin-left:.5in"><sp=
an><br>
                          <br>
                          <u></u><u></u></span></p>
                    </div>
                  </div>
                  <pre style=3D"margin-left:.5in"><span>___________________=
___________<wbr>_________________<u></u><u></u></span></pre>
                  <pre style=3D"margin-left:.5in"><span>Isis-wg mailing lis=
t<u></u><u></u></span></pre>
                  <pre style=3D"margin-left:.5in"><span></span><a href=3D"m=
ailto:Isis-wg@ietf.org" target=3D"_blank"><span>Isis-wg@ietf.org</span><spa=
n></span></a><span><u></u><u></u></span></pre>
                  <pre style=3D"margin-left:.5in"><span></span><a href=3D"h=
ttps://www.ietf.org/mailman/listinfo/isis-wg" target=3D"_blank"><span>https=
://www.ietf.org/mailman/<wbr>listinfo/isis-wg</span><span></span></a><span>=
<u></u><u></u></span></pre>
                </blockquote>
                <p class=3D"MsoNormal" style=3D"margin-left:.5in"><span><u>=
</u>=C2=A0<u></u></span></p>
              </div>
            </blockquote>
          </div>
          <p class=3D"MsoNormal" style=3D"margin-left:.5in"><span><u></u>=
=C2=A0<u></u></span></p>
        </div>
      </div>
    </blockquote>
    <br>
  </div></div></div>

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

--001a113e15d696f1c605638975f9--


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From: Alissa Cooper <alissa@cooperw.in>
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Joel, thank you for your review. I have entered a No Objection ballot.

Alissa

> On Jan 12, 2018, at 8:27 PM, Joel Halpern <jmh@joelhalpern.com> wrote:
> 
> Reviewer: Joel Halpern
> Review result: Ready
> 
> 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.
> 
> For more information, please see the FAQ at
> 
> <https://trac.ietf.org/trac/gen/wiki/GenArtfaq>.
> 
> Document: draft-ietf-ospf-ospfv3-lsa-extend-20
> Reviewer: Joel Halpern
> Review Date: 2018-01-12
> IETF LC End Date: 2018-01-11
> IESG Telechat date: 2018-01-25
> 
> Summary: This document is ready for publication as a Proposed Standard RFC
> 
> Major issues: N/A
> 
> Minor issues: N/A
> 
> Nits/editorial comments:  N/A
> 
> 
> _______________________________________________
> Gen-art mailing list
> Gen-art@ietf.org
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From: Alissa Cooper <alissa@cooperw.in>
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Subject: Re: [OSPF] [Gen-art] Genart telechat review of draft-ietf-ospf-link-overload-12
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Joel, thanks for your reviews of this document. WG, thanks for =
addressing Joel=E2=80=99s earlier review. I have entered a No Objection =
ballot.

Alissa

> On Jan 18, 2018, at 6:14 PM, Joel Halpern <jmh@joelhalpern.com> wrote:
>=20
> Reviewer: Joel Halpern
> Review result: Ready
>=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 wait for direction from your
> document shepherd or AD before posting a new version of the draft.
>=20
> For more information, please see the FAQ at
>=20
> <https://trac.ietf.org/trac/gen/wiki/GenArtfaq>.
>=20
> Document: draft-ietf-ospf-link-overload-12
> Reviewer: Joel Halpern
> Review Date: 2018-01-18
> IETF LC End Date: 2018-01-16
> IESG Telechat date: 2018-01-25
>=20
> Summary: This document is ready for publication as a Proposed Standard =
RFC.
>    My thanks to the authors and WG for addressing my concerns about =
naming.
>=20
> Major issues: N/A
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> Minor issues: N/A
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Suresh Krishnan <suresh@kaloom.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-ospf-ospfv3-lsa-extend@ietf.org" <draft-ietf-ospf-ospfv3-lsa-extend@ietf.org>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>
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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: Stewart Bryant <stewart.bryant@gmail.com>, "Acee Lindem (acee)" <acee@cisco.com>, Alia Atlas <akatlas@gmail.com>
CC: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Thread-Topic: [Isis-wg] Link-State Routing WG charter
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Date: Wed, 24 Jan 2018 22:33:07 +0000
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References: <CAG4d1rfR5Y85T_wNSVXB0WL4C8THyAkgevr6DyH1xcO=R+sOVQ@mail.gmail.com> <0ae3753a-9037-9199-e61d-b4e15089be73@gmail.com> <CAG4d1rfB_iBFMi2zvC=HKZ8PeP7U4ncVkXrGDm7cZvuo9EF6Sg@mail.gmail.com> <5418BD5D-9E5E-49F1-A44C-FC60C3EDF391@cisco.com> <59176f74-28d1-416b-5737-91dbf6d3a833@gmail.com>
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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From nobody Wed Jan 24 14:40:19 2018
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From: Suresh Krishnan <Suresh@kaloom.com>
To: "Acee Lindem (acee)" <acee@cisco.com>
CC: The IESG <iesg@ietf.org>, "draft-ietf-ospf-ospfv3-lsa-extend@ietf.org" <draft-ietf-ospf-ospfv3-lsa-extend@ietf.org>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: Suresh Krishnan's No Objection on draft-ietf-ospf-ospfv3-lsa-extend-21: (with COMMENT)
Thread-Index: AQHTlSbglvpVMR4MukeWhB7MK8uJgaODdKwAgAADqoCAACXtgA==
Date: Wed, 24 Jan 2018 22:40:07 +0000
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Subject: Re: [OSPF] Suresh Krishnan's No Objection on draft-ietf-ospf-ospfv3-lsa-extend-21: (with COMMENT)
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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: Stewart Bryant <stewart.bryant@gmail.com>, "Acee Lindem (acee)" <acee@cisco.com>, Alia Atlas <akatlas@gmail.com>
CC: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Thread-Topic: [Isis-wg] Link-State Routing WG charter
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--_000_4ec12a3e88ce419eb214da5f3009a4ddXCHALN001ciscocom_--


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Date: Wed, 24 Jan 2018 15:11:00 -0800
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, Stewart Bryant <stewart.bryant@gmail.com>, "Acee Lindem (acee)" <acee@cisco.com>, Alia Atlas <akatlas@gmail.com>
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Wouldn=E2=80=99t L2 reference would be a bit outdated?=20

=20

Cheers,

Jeff

=20

From: OSPF <ospf-bounces@ietf.org> on behalf of "Les Ginsberg (ginsberg)" <=
ginsberg@cisco.com>
Date: Wednesday, January 24, 2018 at 15:09
To: Stewart Bryant <stewart.bryant@gmail.com>, "Acee Lindem (acee)" <acee@c=
isco.com>, Alia Atlas <akatlas@gmail.com>
Cc: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter

=20

It occurred to me after sending this that perhaps a better statement as reg=
ards IS-IS would be:

=20

=E2=80=9CLSR=E2=80=99s work is focused on IP/IPv6 and Layer 2 routing=E2=80=A6=E2=80=9D

=20

though admittedly there isn=E2=80=99t much going on as regards Layer2 and IS-IS a=
t the moment.=20

=20

   Les

=20

=20

From: Isis-wg [mailto:isis-wg-bounces@ietf.org] On Behalf Of Les Ginsberg (=
ginsberg)
Sent: Wednesday, January 24, 2018 2:33 PM
To: Stewart Bryant <stewart.bryant@gmail.com>; Acee Lindem (acee) <acee@cis=
co.com>; Alia Atlas <akatlas@gmail.com>
Cc: OSPF List <ospf@ietf.org>; isis-wg@ietf.org
Subject: Re: [Isis-wg] Link-State Routing WG charter

=20

Since a charter only provides a general definition of the work that falls w=
ithin the purview of the WG it requires some adjunct to keep track of the cu=
rrent priorities.

That could be the list of milestones (which OSPF has regularly maintained =E2=
=80=93 but IS-IS has not) =E2=80=93 or it could simply be the list of active WG docume=
nts.

I just don=E2=80=99t see that we should expect the charter to express =E2=80=9Cwork in =
progress=E2=80=9D now =E2=80=93 or in the future.

=20

Alia =E2=80=93 do you think the statement about IS-IS:

=20

=E2=80=9CLSR=E2=80=99s work is focused on IP routing=E2=80=A6=E2=80=9D

=20

Could be improved by saying

=20

=E2=80=9CLSR=E2=80=99s work is focused on IP/IPv6 routing=E2=80=A6=E2=80=9D

=20

???

=20

   Les

=20

=20

From: Isis-wg [mailto:isis-wg-bounces@ietf.org] On Behalf Of Stewart Bryant
Sent: Wednesday, January 24, 2018 10:01 AM
To: Acee Lindem (acee) <acee@cisco.com>; Alia Atlas <akatlas@gmail.com>
Cc: OSPF List <ospf@ietf.org>; isis-wg@ietf.org
Subject: Re: [Isis-wg] Link-State Routing WG charter

=20

Yes that fixes that.

How about:

s/The following topics are expected to be an initial focus:/ In addition to=
 ongoing maintenance, the following topics are expected to be an initial foc=
us:/

I am just concerned that we need not to loose focus on work in progress.

- Stewart

=20

On 24/01/2018 17:54, Acee Lindem (acee) wrote:

How about:

=20

LSR will coordinate with CCAMP and BIER on their extensions to the LSR IGPs=
 as

applicable to LSV protocol operation and scale.=20

=20

Thanks,

Acee=20

=20

From: Isis-wg <isis-wg-bounces@ietf.org> on behalf of Alia Atlas <akatlas@g=
mail.com>
Date: Wednesday, January 24, 2018 at 12:42 PM
To: Stewart Bryant <stewart.bryant@gmail.com>
Cc: OSPF WG List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Subject: Re: [Isis-wg] Link-State Routing WG charter

=20

Hi Stewart,=20

=20

Thanks for the quick feedback.  Feel free to provide suggestions for text c=
hanges if you have them.

You've certainly written enough charters :-)

=20

Regards,

Alia

=20

On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant <stewart.bryant@gmail.com>=
 wrote:

Alia,

I think that this merger is long overdue, and hopefully it will help new fe=
atures to be written in an aligned way.

I think the remit to perform general maintenance should slightly clarified =
since the way the charter is written they look like they are at a lower prio=
rity than the enumerated list.

I would have thought that "LSR can coordinate with CCAMP and BIER on their =
extensions " should have been more directive.=20

- Stewart=20

=20

On 24/01/2018 17:18, Alia Atlas wrote:

Here is the proposed charter for the LSR working group=20

that will be created from the SPF and ISIS working groups.

=20

This is scheduled for internal review for the IESG telechat on February 8.

=20

https://datatracker.ietf.org/doc/charter-ietf-lsr/

=20

The Link-State Routing (LSR) Working Group is chartered to document current=
 protocol implementation practices and improvements, protocol usage scenario=
s, maintenance and extensions of link-state routing interior gateway protoco=
ls (IGPs) with a focus on IS-IS, OSPFv2, and OSPFv3.  The LSR Working Group =
is formed by merging the isis and ospf WGs and will take on all their existi=
ng adopted work at the time of chartering.

=20

IS-IS is an IGP specified and standardized by ISO through ISO 10589:2002 an=
d additional RFC standards with extensions to support IP that has been deplo=
yed in the Internet for decades.  For the IS-IS protocol, LSR=E2=80=99s work is fo=
cused on IP routing, currently based on the agreement in RFC 3563 with ISO/J=
TC1/SC6. The LSR WG will interact with other standards bodies that have resp=
onsible for standardizing IS-IS.

=20

OSPFv2 [RFC 2328 and extensions], is an IGP that has been deployed in the I=
nternet for decades. OSPFv3 [RFC5340 and extensions] provides OSPF for IPv6 =
and IPv4 [RFC5838] which can be delivered over IPv6 or IPv4 [RFC 7949].

=20

The LSR Working Group will generally manage its specific work items by mile=
stones agreed with the responsible Area Director.

=20

The following topics are expected to be an initial focus:

=20

1) Improving OSPF support for IPv6 and extensions using OSPFv3 LSA Extendib=
ility.

2) Extensions needed for Segment Routing and associated architectural chang=
es

3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions

4) Extensions for source-destination routing [draft-ietf-rtgwg-dst-src-rout=
ing]

5) Potentially, extensions to better support specific network topologies su=
ch as=20

ones commonly used in data centers.

=20

The Link-State Routing (LSR) Working Group will coordinate with other worki=
ng groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to understand=
 the need for extensions and to confirm that the planned work meets the need=
s.  LSR can coordinate with CCAMP and BIER on their extensions to the LSR IG=
Ps as useful.  LSR may coordinate with other WGs as needed.

=20

Regards,

Alia




_______________________________________________
Isis-wg mailing list
Isis-wg@ietf.org
https://www.ietf.org/mailman/listinfo/isis-wg
=20

=20

=20

_______________________________________________ OSPF mailing list OSPF@ietf=
.org https://www.ietf.org/mailman/listinfo/ospf=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'color:windowtext'>Would=
n=E2=80=99t L2 reference would be a bit outdated? <o:p></o:p></span></p><p class=3DM=
soNormal><span style=3D'color:windowtext'><o:p>&nbsp;</o:p></span></p><div><p =
class=3DMsoNormal>Cheers,<o:p></o:p></p></div><p class=3DMsoNormal>Jeff<span sty=
le=3D'color:windowtext'><o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'=
color:windowtext'><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><b><s=
pan style=3D'font-size:12.0pt'>From: </span></b><span style=3D'font-size:12.0pt'=
>OSPF &lt;ospf-bounces@ietf.org&gt; on behalf of &quot;Les Ginsberg (ginsber=
g)&quot; &lt;ginsberg@cisco.com&gt;<br><b>Date: </b>Wednesday, January 24, 2=
018 at 15:09<br><b>To: </b>Stewart Bryant &lt;stewart.bryant@gmail.com&gt;, =
&quot;Acee Lindem (acee)&quot; &lt;acee@cisco.com&gt;, Alia Atlas &lt;akatla=
s@gmail.com&gt;<br><b>Cc: </b>OSPF List &lt;ospf@ietf.org&gt;, &quot;isis-wg=
@ietf.org&quot; &lt;isis-wg@ietf.org&gt;<br><b>Subject: </b>Re: [OSPF] [Isis=
-wg] Link-State Routing WG charter<o:p></o:p></span></p></div><div><p class=3D=
MsoNormal><span style=3D'color:windowtext'><o:p>&nbsp;</o:p></span></p></div><=
p class=3DMsoNormal><span style=3D'color:#1F497D'>It occurred to me after sendin=
g this that perhaps a better statement as regards IS-IS would be:</span><o:p=
></o:p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;</span><o:p>=
</o:p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>=E2=80=9CLSR=E2=80=99s work is =
focused on IP/IPv6 and Layer 2 routing=E2=80=A6=E2=80=9D</span><o:p></o:p></p><p class=3DM=
soNormal><span style=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></p><p class=3DMs=
oNormal><span style=3D'color:#1F497D'>though admittedly there isn=E2=80=99t much goi=
ng on as regards Layer2 and IS-IS at the moment. </span><o:p></o:p></p><p cl=
ass=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></p><p cla=
ss=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; Les</span><o:p></o:p><=
/p><p class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></=
p><p class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></p=
><div style=3D'border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.=
0pt'><div><div style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0=
pt 0in 0in 0in'><p class=3DMsoNormal><b><span style=3D'color:windowtext'>From:</=
span></b><span style=3D'color:windowtext'> Isis-wg [mailto:isis-wg-bounces@iet=
f.org] <b>On Behalf Of </b>Les Ginsberg (ginsberg)<br><b>Sent:</b> Wednesday=
, January 24, 2018 2:33 PM<br><b>To:</b> Stewart Bryant &lt;stewart.bryant@g=
mail.com&gt;; Acee Lindem (acee) &lt;acee@cisco.com&gt;; Alia Atlas &lt;akat=
las@gmail.com&gt;<br><b>Cc:</b> OSPF List &lt;ospf@ietf.org&gt;; isis-wg@iet=
f.org<br><b>Subject:</b> Re: [Isis-wg] Link-State Routing WG charter</span><=
o:p></o:p></p></div></div><p class=3DMsoNormal>&nbsp;<o:p></o:p></p><p class=3DM=
soNormal><span style=3D'color:#1F497D'>Since a charter only provides a general=
 definition of the work that falls within the purview of the WG it requires =
some adjunct to keep track of the current priorities.</span><o:p></o:p></p><=
p class=3DMsoNormal><span style=3D'color:#1F497D'>That could be the list of mile=
stones (which OSPF has regularly maintained =E2=80=93 but IS-IS has not) =E2=80=93 or it=
 could simply be the list of active WG documents.</span><o:p></o:p></p><p cl=
ass=3DMsoNormal><span style=3D'color:#1F497D'>I just don=E2=80=99t see that we should =
expect the charter to express =E2=80=9Cwork in progress=E2=80=9D now =E2=80=93 or in the futur=
e.</span><o:p></o:p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp=
;</span><o:p></o:p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>Alia =E2=
=80=93 do you think the statement about IS-IS:</span><o:p></o:p></p><p class=3DMso=
Normal><span style=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></p><p class=3DMsoN=
ormal><span style=3D'color:#1F497D'>=E2=80=9CLSR=E2=80=99s work is focused on IP routing=E2=80=
=A6=E2=80=9D</span><o:p></o:p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>&nb=
sp;</span><o:p></o:p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>Coul=
d be improved by saying</span><o:p></o:p></p><p class=3DMsoNormal><span style=3D=
'color:#1F497D'>&nbsp;</span><o:p></o:p></p><p class=3DMsoNormal><span style=3D'=
color:#1F497D'>=E2=80=9CLSR=E2=80=99s work is focused on IP/IPv6 routing=E2=80=A6=E2=80=9D</span><o:=
p></o:p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;</span><o:p=
></o:p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>???</span><o:p></o=
:p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;</span><o:p></o:=
p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; Les</span>=
<o:p></o:p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;</span><=
o:p></o:p></p><p class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;</span><o=
:p></o:p></p><div style=3D'border:none;border-left:solid blue 1.5pt;padding:0i=
n 0in 0in 4.0pt'><div><div style=3D'border:none;border-top:solid #E1E1E1 1.0pt=
;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal><b><span style=3D'color:windowt=
ext'>From:</span></b><span style=3D'color:windowtext'> Isis-wg [<a href=3D"mailt=
o:isis-wg-bounces@ietf.org">mailto:isis-wg-bounces@ietf.org</a>] <b>On Behal=
f Of </b>Stewart Bryant<br><b>Sent:</b> Wednesday, January 24, 2018 10:01 AM=
<br><b>To:</b> Acee Lindem (acee) &lt;<a href=3D"mailto:acee@cisco.com">acee@c=
isco.com</a>&gt;; Alia Atlas &lt;<a href=3D"mailto:akatlas@gmail.com">akatlas@=
gmail.com</a>&gt;<br><b>Cc:</b> OSPF List &lt;<a href=3D"mailto:ospf@ietf.org"=
>ospf@ietf.org</a>&gt;; <a href=3D"mailto:isis-wg@ietf.org">isis-wg@ietf.org</=
a><br><b>Subject:</b> Re: [Isis-wg] Link-State Routing WG charter</span><o:p=
></o:p></p></div></div><p class=3DMsoNormal>&nbsp;<o:p></o:p></p><p>Yes that f=
ixes that.<o:p></o:p></p><p>How about:<o:p></o:p></p><p>s/The following topi=
cs are expected to be an initial focus:/ In addition to ongoing maintenance,=
 the following topics are expected to be an initial focus:/<o:p></o:p></p><p=
>I am just concerned that we need not to loose focus on work in progress.<o:=
p></o:p></p><p>- Stewart<o:p></o:p></p><p class=3DMsoNormal>&nbsp;<o:p></o:p><=
/p><div><p class=3DMsoNormal>On 24/01/2018 17:54, Acee Lindem (acee) wrote:<o:=
p></o:p></p></div><blockquote style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><=
p class=3DMsoNormal>How about:<o:p></o:p></p><p class=3DMsoNormal>&nbsp;<o:p></o=
:p></p><p class=3DMsoNormal><span style=3D'font-size:10.0pt;font-family:"Courier=
 New",serif'>LSR will coordinate with CCAMP and BIER on their extensions to =
the LSR IGPs as</span><o:p></o:p></p><p class=3DMsoNormal><span style=3D'font-si=
ze:10.0pt;font-family:"Courier New",serif'>applicable to LSV protocol operat=
ion and scale.&nbsp;</span><o:p></o:p></p><p class=3DMsoNormal>&nbsp;<o:p></o:=
p></p><p class=3DMsoNormal>Thanks,<o:p></o:p></p><p class=3DMsoNormal>Acee <o:p>=
</o:p></p><p class=3DMsoNormal>&nbsp;<o:p></o:p></p><div style=3D'border:none;bo=
rder-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal s=
tyle=3D'margin-left:.5in'><b><span style=3D'font-size:12.0pt'>From: </span></b><=
span style=3D'font-size:12.0pt'>Isis-wg </span><a href=3D"mailto:isis-wg-bounces=
@ietf.org"><span style=3D'font-size:12.0pt'>&lt;isis-wg-bounces@ietf.org&gt;</=
span></a><span style=3D'font-size:12.0pt'> on behalf of Alia Atlas </span><a h=
ref=3D"mailto:akatlas@gmail.com"><span style=3D'font-size:12.0pt'>&lt;akatlas@gm=
ail.com&gt;</span></a><span style=3D'font-size:12.0pt'><br><b>Date: </b>Wednes=
day, January 24, 2018 at 12:42 PM<br><b>To: </b>Stewart Bryant </span><a hre=
f=3D"mailto:stewart.bryant@gmail.com"><span style=3D'font-size:12.0pt'>&lt;stewa=
rt.bryant@gmail.com&gt;</span></a><span style=3D'font-size:12.0pt'><br><b>Cc: =
</b>OSPF WG List </span><a href=3D"mailto:ospf@ietf.org"><span style=3D'font-siz=
e:12.0pt'>&lt;ospf@ietf.org&gt;</span></a><span style=3D'font-size:12.0pt'>, <=
/span><a href=3D"mailto:isis-wg@ietf.org"><span style=3D'font-size:12.0pt'>&quot=
;isis-wg@ietf.org&quot;</span></a><span style=3D'font-size:12.0pt'> </span><a =
href=3D"mailto:isis-wg@ietf.org"><span style=3D'font-size:12.0pt'>&lt;isis-wg@ie=
tf.org&gt;</span></a><span style=3D'font-size:12.0pt'><br><b>Subject: </b>Re: =
[Isis-wg] Link-State Routing WG charter</span><o:p></o:p></p></div><div><p c=
lass=3DMsoNormal style=3D'margin-left:.5in'>&nbsp;<o:p></o:p></p></div><div><p c=
lass=3DMsoNormal style=3D'margin-left:.5in'>Hi Stewart, <o:p></o:p></p><div><p c=
lass=3DMsoNormal style=3D'margin-left:.5in'>&nbsp;<o:p></o:p></p></div><div><p c=
lass=3DMsoNormal style=3D'margin-left:.5in'>Thanks for the quick feedback.&nbsp;=
 Feel free to provide suggestions for text changes if you have them.<o:p></o=
:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>You've certain=
ly written enough charters :-)<o:p></o:p></p></div><div><p class=3DMsoNormal s=
tyle=3D'margin-left:.5in'>&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal s=
tyle=3D'margin-left:.5in'>Regards,<o:p></o:p></p></div><div><p class=3DMsoNormal=
 style=3D'margin-left:.5in'>Alia<o:p></o:p></p></div></div><div><p class=3DMsoNo=
rmal style=3D'margin-left:.5in'>&nbsp;<o:p></o:p></p><div><p class=3DMsoNormal s=
tyle=3D'margin-left:.5in'>On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant &lt=
;<a href=3D"mailto:stewart.bryant@gmail.com" target=3D"_blank">stewart.bryant@gm=
ail.com</a>&gt; wrote:<o:p></o:p></p><blockquote style=3D'border:none;border-l=
eft:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-t=
op:5.0pt;margin-right:0in;margin-bottom:5.0pt'><div><p style=3D'margin-left:.5=
in'>Alia,<o:p></o:p></p><p class=3DMsoNormal style=3D'margin-left:.5in'>I think =
that this merger is long overdue, and hopefully it will help new features to=
 be written in an aligned way.<br><br>I think the remit to perform general m=
aintenance should slightly clarified since the way the charter is written th=
ey look like they are at a lower priority than the enumerated list.<br><br>I=
 would have thought that &quot;LSR can coordinate with CCAMP and BIER on the=
ir extensions &quot; should have been more directive. <br><br>- Stewart <o:p=
></o:p></p><div><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:0in;margin=
-right:0in;margin-bottom:12.0pt;margin-left:.5in'>&nbsp;<o:p></o:p></p><div>=
<p class=3DMsoNormal style=3D'margin-left:.5in'>On 24/01/2018 17:18, Alia Atlas =
wrote:<o:p></o:p></p></div></div></div><blockquote style=3D'margin-top:5.0pt;m=
argin-bottom:5.0pt'><div><div><div><p class=3DMsoNormal style=3D'margin-left:.5i=
n'>Here is the proposed charter for the LSR working group <o:p></o:p></p><di=
v><p class=3DMsoNormal style=3D'margin-left:.5in'>that will be created from the =
SPF and ISIS working groups.<o:p></o:p></p></div><div><p class=3DMsoNormal sty=
le=3D'margin-left:.5in'>&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal sty=
le=3D'margin-left:.5in'>This is scheduled for internal review for the IESG tel=
echat on February 8.<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'marg=
in-left:.5in'>&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'marg=
in-left:.5in'><a href=3D"https://datatracker.ietf.org/doc/charter-ietf-lsr/" t=
arget=3D"_blank">https://datatracker.ietf.org/doc/charter-ietf-lsr/</a><o:p></=
o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>&nbsp;<o:p></=
o:p></p></div><div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>The Link=
-State Routing (LSR) Working Group is chartered to document current protocol=
 implementation practices and improvements, protocol usage scenarios, mainte=
nance and extensions of link-state routing interior gateway protocols (IGPs)=
 with a focus on IS-IS, OSPFv2, and OSPFv3.&nbsp; The LSR Working Group is f=
ormed by merging the isis and ospf WGs and will take on all their existing a=
dopted work at the time of chartering.<o:p></o:p></p></div><div><p class=3DMso=
Normal style=3D'margin-left:.5in'>&nbsp;<o:p></o:p></p></div><div><p class=3DMso=
Normal style=3D'margin-left:.5in'>IS-IS is an IGP specified and standardized b=
y ISO through ISO 10589:2002 and additional RFC standards with extensions to=
 support IP that has been deployed in the Internet for decades.&nbsp; For th=
e IS-IS protocol, LSR=E2=80=99s work is focused on IP routing, currently based on =
the agreement in RFC 3563 with ISO/JTC1/SC6. The LSR WG will interact with o=
ther standards bodies that have responsible for standardizing IS-IS.<o:p></o=
:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>&nbsp;<o:p></o=
:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>OSPFv2 [RFC 23=
28 and extensions], is an IGP that has been deployed in the Internet for dec=
ades. OSPFv3 [RFC5340 and extensions] provides OSPF for IPv6 and IPv4 [RFC58=
38] which can be delivered over IPv6 or IPv4 [RFC 7949].<o:p></o:p></p></div=
><div><p class=3DMsoNormal style=3D'margin-left:.5in'>&nbsp;<o:p></o:p></p></div=
><div><p class=3DMsoNormal style=3D'margin-left:.5in'>The LSR Working Group will=
 generally manage its specific work items by milestones agreed with the resp=
onsible Area Director.<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'ma=
rgin-left:.5in'>&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'ma=
rgin-left:.5in'>The following topics are expected to be an initial focus:<o:=
p></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>&nbsp;<o:=
p></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>1) Improv=
ing OSPF support for IPv6 and extensions using OSPFv3 LSA Extendibility.<o:p=
></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>2) Extensi=
ons needed for Segment Routing and associated architectural changes<o:p></o:=
p></p></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>3) YANG models =
for IS-IS, OSPFv2, and OSPFv3 and extensions<o:p></o:p></p></div><div><p cla=
ss=3DMsoNormal style=3D'margin-left:.5in'>4) Extensions for source-destination r=
outing [draft-ietf-rtgwg-dst-src-routing]<o:p></o:p></p></div><div><p class=3D=
MsoNormal style=3D'margin-left:.5in'>5) Potentially, extensions to better supp=
ort specific network topologies such as&nbsp;<o:p></o:p></p></div><div><p cl=
ass=3DMsoNormal style=3D'margin-left:.5in'>ones commonly used in data centers.<o=
:p></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>&nbsp;<o=
:p></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>The Link=
-State Routing (LSR) Working Group will coordinate with other working groups=
, such as RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to understand the need=
 for extensions and to confirm that the planned work meets the needs.&nbsp; =
LSR can coordinate with CCAMP and BIER on their extensions to the LSR IGPs a=
s useful.&nbsp; LSR may coordinate with other WGs as needed.<o:p></o:p></p><=
/div></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>&nbsp;<o:p></o:p=
></p></div><div><p class=3DMsoNormal style=3D'margin-left:.5in'>Regards,<o:p></o=
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Alvaro Retana <aretana.ietf@gmail.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-ospf-ospfv3-lsa-extend@ietf.org" <draft-ietf-ospf-ospfv3-lsa-extend@ietf.org>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: Alvaro Retana's Yes on draft-ietf-ospf-ospfv3-lsa-extend-21: (with COMMENT)
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Subject: Re: [OSPF] Alvaro Retana's Yes on draft-ietf-ospf-ospfv3-lsa-extend-21: (with COMMENT)
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Date: Wed, 24 Jan 2018 15:27:37 -0800
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: Alia Atlas <akatlas@gmail.com>, <isis-wg@ietf.org>, OSPF List <ospf@ietf.org>
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Thread-Topic: early proposed charter for the Link-State Routing WG
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Subject: Re: [OSPF] early proposed charter for the Link-State Routing WG
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Hi Alia,

 

+1 on keeping FRR work in RTGWG ;-)

 

Cheers,

Jeff

 

From: rtgwg <rtgwg-bounces@ietf.org> on behalf of Alia Atlas <akatlas@gmail.com>
Date: Tuesday, January 23, 2018 at 09:22
To: <isis-wg@ietf.org>, OSPF List <ospf@ietf.org>
Cc: RTGWG <rtgwg@ietf.org>
Subject: early proposed charter for the Link-State Routing WG

 

I am working on the initial charter for the LSR WG, which will combine the 

OSPF and ISIS WGs.  At this time, I do not see moving the fast-reroute work

from RTGWG, but I am willing to hear opinions.

 

In general, feedback on what areas should be the initial focus or specific 

concerns on scoping would be useful.  My basic plan is for a broad charter focused

on maintenance, usage scenarios, and extensions - much as OSPF and ISIS are

chartered today.

 

I would like to have this on the February 8 IESG telechat, so rapid feedback and reviews

of the proposed charter when it is sent out would be appreciated.

 

Thanks,

Alia

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


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</o:shapelayout></xml><![endif]--></head><body bgcolor=3Dwhite lang=3DEN-US lin=
k=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p class=3DMsoNormal>Hi Al=
ia,<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal=
>+1 on keeping FRR work in RTGWG ;-)<o:p></o:p></p><p class=3DMsoNormal><o:p>&=
nbsp;</o:p></p><div><p class=3DMsoNormal><span style=3D'color:black'>Cheers,<o:p=
></o:p></span></p></div><p class=3DMsoNormal><span style=3D'color:black'>Jeff</s=
pan><o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><div style=3D'borde=
r:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMs=
oNormal><b><span style=3D'font-size:12.0pt;color:black'>From: </span></b><span=
 style=3D'font-size:12.0pt;color:black'>rtgwg &lt;rtgwg-bounces@ietf.org&gt; o=
n behalf of Alia Atlas &lt;akatlas@gmail.com&gt;<br><b>Date: </b>Tuesday, Ja=
nuary 23, 2018 at 09:22<br><b>To: </b>&lt;isis-wg@ietf.org&gt;, OSPF List &l=
t;ospf@ietf.org&gt;<br><b>Cc: </b>RTGWG &lt;rtgwg@ietf.org&gt;<br><b>Subject=
: </b>early proposed charter for the Link-State Routing WG<o:p></o:p></span>=
</p></div><div><p class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p class=3DM=
soNormal>I am working on the initial charter for the LSR WG, which will comb=
ine the&nbsp;<o:p></o:p></p><div><p class=3DMsoNormal>OSPF and ISIS WGs.&nbsp;=
 At this time, I do not see moving the fast-reroute work<o:p></o:p></p></div=
><div><p class=3DMsoNormal>from RTGWG, but I am willing to hear opinions.<o:p>=
</o:p></p></div><div><p class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p c=
lass=3DMsoNormal>In general, feedback on what areas should be the initial focu=
s or specific&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal>concerns on =
scoping would be useful.&nbsp; My basic plan is for a broad charter focused<=
o:p></o:p></p></div><div><p class=3DMsoNormal>on maintenance, usage scenarios,=
 and extensions - much as OSPF and ISIS are<o:p></o:p></p></div><div><p clas=
s=3DMsoNormal>chartered today.<o:p></o:p></p></div><div><p class=3DMsoNormal><o:=
p>&nbsp;</o:p></p></div><div><p class=3DMsoNormal>I would like to have this on=
 the February 8 IESG telechat, so rapid feedback and reviews<o:p></o:p></p><=
/div><div><p class=3DMsoNormal>of the proposed charter when it is sent out wou=
ld be appreciated.<o:p></o:p></p></div><div><p class=3DMsoNormal><o:p>&nbsp;</=
o:p></p></div><div><p class=3DMsoNormal>Thanks,<o:p></o:p></p></div><div><p cl=
ass=3DMsoNormal>Alia<o:p></o:p></p></div></div><p class=3DMsoNormal>____________=
___________________________________ rtgwg mailing list rtgwg@ietf.org https:=
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From: Alia Atlas <akatlas@gmail.com>
Date: Wed, 24 Jan 2018 18:51:00 -0500
Message-ID: <CAG4d1rddCcfXwGye3WfhjmOShMGaZHwBrAu2r_7OvPbkJK5Aeg@mail.gmail.com>
To: "Acee Lindem (acee)" <acee@cisco.com>
Cc: Alvaro Retana <aretana.ietf@gmail.com>, The IESG <iesg@ietf.org>,  "ospf@ietf.org" <ospf@ietf.org>,  "draft-ietf-ospf-ospfv3-lsa-extend@ietf.org" <draft-ietf-ospf-ospfv3-lsa-extend@ietf.org>,  "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>
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Subject: Re: [OSPF] Alvaro Retana's Yes on draft-ietf-ospf-ospfv3-lsa-extend-21: (with COMMENT)
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Hi Acee,

Thanks for your quick responses.  On the point about the N-flag, I also
found it was
a bit underspecified in my AD review.  Could you please spend a bit of time
thinking
about how to make it clearer.

Thanks,
Alia

On Wed, Jan 24, 2018 at 6:12 PM, Acee Lindem (acee) <acee@cisco.com> wrote:

> HI Alvaro,
>
> Thanks for the detailed review.  I've resolved almost all of your
> comments.  I'm going to issue a new version.
>
> =EF=BB=BFOn 1/24/18, 9:47 AM, "Alvaro Retana" <aretana.ietf@gmail.com> wr=
ote:
>
>     Alvaro Retana has entered the following ballot position for
>     draft-ietf-ospf-ospfv3-lsa-extend-21: Yes
>
>     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 th=
is
>     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-ospf-ospfv3-lsa-extend/
>
>
>
>     ---------------------------------------------------------------------=
-
>     COMMENT:
>     ---------------------------------------------------------------------=
-
>
>     Thanks for doing this work!!
>
>     All my comments (below) are non-blocking, but I would like to see the=
m
>     addressed before publication.
>
>     (1) Please include in an explicit indication of what in
> rfc5340/rfc5838 is
>     Updated by this document.
>
> Ok - while it is obvious once the draft has been consumed, I'll state it
> in the Abstract and Introduction explicitly.
>
>
>     (2) It seems to me that the setting of the U-bit is treated too
> lightly: "the
>     U-bit will be set"; maybe be more prescriptive: "the U-bit MUST be
> set".
>
> Sure. Although the U-bit is included in the full LSA type so this was
> really more informative than normative. However, I don't have a strong
> opinion.
>
>     (3) I'm confused, why is the N-bit needed?  The description indicates
> when to
> s    use it, but is also says that the "advertising router MAY choose NOT
> to set
>     [it]", so it doesn't sound that important.  Further down, there are
> other
>     conditions when it is set...but no other text in the document about
> checking
>     it, or what happens if it is not set. Finally, the text gives an
> application
>     example: "identifying the prefixes corresponding to Node Segment
> Identifiers
>     (SIDs) in Segment Routing" -- I checked the reference, but didn't fin=
d
> a
>     mention of the N-bit there either.
>
> I'm going to defer this one. However, it should be noted that it is also
> specified RFC 7684 as the Node-Flag with the same description.
>
>     (4) s/The IPv4 Forwarding Address TLV is The IPv4 Forwarding Address
> TLV/The
>     IPv4 Forwarding Address TLV
>
> Fixed.
>
>
>     (5) s/IPv3/IPv4
>
> Fixed.
>
>
>     (6) The figures in 3.10 and 3.11 have the wrong tittle.
>
> Fixed.
>
>
>     (7) From 4.1:
>        Depending on the implementation, it is perfectly valid for an E-
>        Router-LSA to not contain any Router-Link TLVs.  However, this wou=
ld
>        imply that the OSPFv3 router doesn't have any active interfaces in
>        the corresponding area and such E-Router-LSA would never be floode=
d
>        to other OSPFv3 routers in the area.
>
>
>     I can imagine that a starting/restarting router could have a local
> E-Router-LSA
>     with no active interfaces, are there other cases?
>
> I was going to say it would never happen. However, if you have a single
> unnumbered interface (no stub link) and an adjacency (>=3D Exchange state=
) is
> being formed, you could have an E-Router-LSA with no links. I'll fix the
> text.
>
>     What should a router do if
>     it receives an E-Router-LSA with no Router-Link TLVs?
>
>  The same thing happens as in OSPFv2 and OSPFv3 today. The OSPFv3 router
> is not reachable via an OSPFv3 route.  Do you want me to add something
> other than fixing the above?
>
>
>     (8) s/Inter-Area-Router-LSAE/Inter-Area-Router-LSA
>
> Fixed.
>
>     (9) sparse mode is called "spare mode" in a couple of places...or
> maybe it's
>     the other way around. ;-)
>
> Fixed.
>
>     (10) In many OSPF-related documents the Appendixes are Normative, so
> I'm
>     assuming they are Normative here too.  Only A and B are referenced
> from the
>     main text -- C is titled "Deprecated LSA Extension Backward
> Compatibility";
>     deprecated??  Does that mean that C is an old behavior that lived at
> some point
>     in the history of this document?  The content of C doesn't seem to
> conflict
>     with what is in A and B, and there is some important information ther=
e
> -- for
>     example the transition process in C.1.  But C.2. and C.3. clearly
> overlap with
>     A and B.  Please clarify the role of the Appendixes.
>
>     [The following comments are related to the Appendixes and their
> relevance
>     depends on my comment above.]
>
> I think I'm going to remove Appendix C. It was made non-normative since w=
e
> had an extended drought on implementation and this was assessed by me to =
be
> the greatest implementation barrier. I think it would be better to descri=
be
> this in a new draft normatively. I've never been a fan of programmers
> adding code that MAY be used in the future. I'll see if any of the
> implementers are interested in this effort.
>
>
>     (11) The appendixes contain several places where the text says that a
> new
>     parameter "will be added" -- in reality this document adds those
> parameters.
>     Please update.
>
> Fixed.
>
>
>     (12) In Appendix B: s/If ExtendedLSASupport is enabled/If
>     AreaExtendedLSASupport is enabled
>
> Fixed.
>
>     (13) "...disabling AreaExtendedLSASupport when ExtendedLSASupport is
> enabled is
>     contradictory and MAY be prohibited by the implementation."  I'm not
> sure I
>     understand this text.
>
>     Can AreaExtendedLSASupport be enabled without enabling
> ExtendedLSASupport?  I'm
>     assuming that's the case (from 6.1: "Individual OSPF Areas can be
> migrated
>     separately...accomplished by enabled AreaExtendedLSASupport").  If so=
,
> then the
>     text above is confusing...
>
>     If not prohibited by the implementation, what if it happens
>     (AreaExtendedLSASupport is disabled while ExtendedLSASupport is
> enabled)?  From
>     the previous paragraphs, it seems to me that the network could lose
> external
>     routes (if only Legacy LSAs have that information)-- is that true?
>
>     OTOH, what if the implementation does prohibit the state -- does that
> mean that
>     external routes will not be used if they're not derived from Legacy
> LSAs?  I
>     think the text could use some clarification.
>
> If I add, "disabling AreaExtendedLSASupport for a regular area"? What thi=
s
> was meant to capture is the case where Extended-AS-External LSAs would be
> flooded into an area without AreaExtendedLSASupport.
>
>
>
>     (14) C.1.1. says that "The configuration of ExtendedLSASupport will
> apply to
>     AS-External LSAs even when AreaExtendedLSASupport takes precedence."
> But
>     Appendix B says that "Legacy AS-Scoped LSAs will still be originated
> and used
>     for the AS External LSA computation."  That seems like a contradictio=
n
> to me.
>
> That is why it is disallowed in 13. I changed "MAY" to "SHOULD".
>
>
>     (15) In C.1.1 s/MixedModeOriginate/MixedModeOriginateOnly
>
> Fixed.
>
> Thanks,
> Acee
>
>
>
>
>

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<div dir=3D"ltr">Hi Acee,<div><br></div><div>Thanks for your quick response=
s.=C2=A0 On the point about the N-flag, I also found it was=C2=A0</div><div=
>a bit underspecified in my AD review.=C2=A0 Could you please spend a bit o=
f time thinking</div><div>about how to make it clearer.</div><div><br></div=
><div>Thanks,</div><div>Alia</div></div><div class=3D"gmail_extra"><br><div=
 class=3D"gmail_quote">On Wed, Jan 24, 2018 at 6:12 PM, Acee Lindem (acee) =
<span dir=3D"ltr">&lt;<a href=3D"mailto:acee@cisco.com" target=3D"_blank">a=
cee@cisco.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" st=
yle=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">HI Al=
varo,<br>
<br>
Thanks for the detailed review.=C2=A0 I&#39;ve resolved almost all of your =
comments.=C2=A0 I&#39;m going to issue a new version.<br>
<span class=3D""><br>
=EF=BB=BFOn 1/24/18, 9:47 AM, &quot;Alvaro Retana&quot; &lt;<a href=3D"mail=
to:aretana.ietf@gmail.com">aretana.ietf@gmail.com</a>&gt; wrote:<br>
<br>
=C2=A0 =C2=A0 Alvaro Retana has entered the following ballot position for<b=
r>
=C2=A0 =C2=A0 draft-ietf-ospf-ospfv3-lsa-<wbr>extend-21: Yes<br>
<br>
=C2=A0 =C2=A0 When responding, please keep the subject line intact and repl=
y to all<br>
=C2=A0 =C2=A0 email addresses included in the To and CC lines. (Feel free t=
o cut this<br>
=C2=A0 =C2=A0 introductory paragraph, however.)<br>
<br>
<br>
=C2=A0 =C2=A0 Please refer to <a href=3D"https://www.ietf.org/iesg/statemen=
t/discuss-criteria.html" rel=3D"noreferrer" target=3D"_blank">https://www.i=
etf.org/iesg/<wbr>statement/discuss-criteria.<wbr>html</a><br>
=C2=A0 =C2=A0 for more information about IESG DISCUSS and COMMENT positions=
.<br>
<br>
<br>
=C2=A0 =C2=A0 The document, along with other ballot positions, can be found=
 here:<br>
=C2=A0 =C2=A0 <a href=3D"https://datatracker.ietf.org/doc/draft-ietf-ospf-o=
spfv3-lsa-extend/" rel=3D"noreferrer" target=3D"_blank">https://datatracker=
.ietf.org/<wbr>doc/draft-ietf-ospf-ospfv3-<wbr>lsa-extend/</a><br>
<br>
<br>
<br>
=C2=A0 =C2=A0 ------------------------------<wbr>--------------------------=
----<wbr>----------<br>
=C2=A0 =C2=A0 COMMENT:<br>
=C2=A0 =C2=A0 ------------------------------<wbr>--------------------------=
----<wbr>----------<br>
<br>
=C2=A0 =C2=A0 Thanks for doing this work!!<br>
<br>
=C2=A0 =C2=A0 All my comments (below) are non-blocking, but I would like to=
 see them<br>
=C2=A0 =C2=A0 addressed before publication.<br>
<br>
=C2=A0 =C2=A0 (1) Please include in an explicit indication of what in rfc53=
40/rfc5838 is<br>
=C2=A0 =C2=A0 Updated by this document.<br>
<br>
</span>Ok - while it is obvious once the draft has been consumed, I&#39;ll =
state it in the Abstract and Introduction explicitly.<br>
<span class=3D""><br>
<br>
=C2=A0 =C2=A0 (2) It seems to me that the setting of the U-bit is treated t=
oo lightly: &quot;the<br>
=C2=A0 =C2=A0 U-bit will be set&quot;; maybe be more prescriptive: &quot;th=
e U-bit MUST be set&quot;.<br>
<br>
</span>Sure. Although the U-bit is included in the full LSA type so this wa=
s really more informative than normative. However, I don&#39;t have a stron=
g opinion.<br>
<span class=3D""><br>
=C2=A0 =C2=A0 (3) I&#39;m confused, why is the N-bit needed?=C2=A0 The desc=
ription indicates when to<br>
</span>s=C2=A0 =C2=A0 use it, but is also says that the &quot;advertising r=
outer MAY choose NOT to set<br>
<span class=3D"">=C2=A0 =C2=A0 [it]&quot;, so it doesn&#39;t sound that imp=
ortant.=C2=A0 Further down, there are other<br>
=C2=A0 =C2=A0 conditions when it is set...but no other text in the document=
 about checking<br>
=C2=A0 =C2=A0 it, or what happens if it is not set. Finally, the text gives=
 an application<br>
=C2=A0 =C2=A0 example: &quot;identifying the prefixes corresponding to Node=
 Segment Identifiers<br>
=C2=A0 =C2=A0 (SIDs) in Segment Routing&quot; -- I checked the reference, b=
ut didn&#39;t find a<br>
=C2=A0 =C2=A0 mention of the N-bit there either.<br>
<br>
</span>I&#39;m going to defer this one. However, it should be noted that it=
 is also specified RFC 7684 as the Node-Flag with the same description.<br>
<span class=3D""><br>
=C2=A0 =C2=A0 (4) s/The IPv4 Forwarding Address TLV is The IPv4 Forwarding =
Address TLV/The<br>
=C2=A0 =C2=A0 IPv4 Forwarding Address TLV<br>
<br>
</span>Fixed.<br>
<br>
<br>
=C2=A0 =C2=A0 (5) s/IPv3/IPv4<br>
<br>
Fixed.<br>
<span class=3D""><br>
<br>
=C2=A0 =C2=A0 (6) The figures in 3.10 and 3.11 have the wrong tittle.<br>
<br>
</span>Fixed.<br>
<span class=3D""><br>
<br>
=C2=A0 =C2=A0 (7) From 4.1:<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0Depending on the implementation, it is perfectly=
 valid for an E-<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0Router-LSA to not contain any Router-Link TLVs.=
=C2=A0 However, this would<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0imply that the OSPFv3 router doesn&#39;t have an=
y active interfaces in<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0the corresponding area and such E-Router-LSA wou=
ld never be flooded<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0to other OSPFv3 routers in the area.<br>
<br>
<br>
=C2=A0 =C2=A0 I can imagine that a starting/restarting router could have a =
local E-Router-LSA<br>
=C2=A0 =C2=A0 with no active interfaces, are there other cases?<br>
<br>
</span>I was going to say it would never happen. However, if you have a sin=
gle unnumbered interface (no stub link) and an adjacency (&gt;=3D Exchange =
state) is being formed, you could have an E-Router-LSA with no links. I&#39=
;ll fix the text.<br>
<span class=3D""><br>
=C2=A0 =C2=A0 What should a router do if<br>
=C2=A0 =C2=A0 it receives an E-Router-LSA with no Router-Link TLVs?<br>
<br>
</span>=C2=A0The same thing happens as in OSPFv2 and OSPFv3 today. The OSPF=
v3 router is not reachable via an OSPFv3 route.=C2=A0 Do you want me to add=
 something other than fixing the above?<br>
<br>
<br>
=C2=A0 =C2=A0 (8) s/Inter-Area-Router-LSAE/<wbr>Inter-Area-Router-LSA<br>
<br>
Fixed.<br>
<span class=3D""><br>
=C2=A0 =C2=A0 (9) sparse mode is called &quot;spare mode&quot; in a couple =
of places...or maybe it&#39;s<br>
=C2=A0 =C2=A0 the other way around. ;-)<br>
<br>
</span>Fixed.<br>
<span class=3D""><br>
=C2=A0 =C2=A0 (10) In many OSPF-related documents the Appendixes are Normat=
ive, so I&#39;m<br>
=C2=A0 =C2=A0 assuming they are Normative here too.=C2=A0 Only A and B are =
referenced from the<br>
=C2=A0 =C2=A0 main text -- C is titled &quot;Deprecated LSA Extension Backw=
ard Compatibility&quot;;<br>
=C2=A0 =C2=A0 deprecated??=C2=A0 Does that mean that C is an old behavior t=
hat lived at some point<br>
=C2=A0 =C2=A0 in the history of this document?=C2=A0 The content of C doesn=
&#39;t seem to conflict<br>
=C2=A0 =C2=A0 with what is in A and B, and there is some important informat=
ion there -- for<br>
=C2=A0 =C2=A0 example the transition process in C.1.=C2=A0 But C.2. and C.3=
. clearly overlap with<br>
=C2=A0 =C2=A0 A and B.=C2=A0 Please clarify the role of the Appendixes.<br>
<br>
=C2=A0 =C2=A0 [The following comments are related to the Appendixes and the=
ir relevance<br>
=C2=A0 =C2=A0 depends on my comment above.]<br>
<br>
</span>I think I&#39;m going to remove Appendix C. It was made non-normativ=
e since we had an extended drought on implementation and this was assessed =
by me to be the greatest implementation barrier. I think it would be better=
 to describe this in a new draft normatively. I&#39;ve never been a fan of =
programmers adding code that MAY be used in the future. I&#39;ll see if any=
 of the implementers are interested in this effort.<br>
<span class=3D""><br>
<br>
=C2=A0 =C2=A0 (11) The appendixes contain several places where the text say=
s that a new<br>
=C2=A0 =C2=A0 parameter &quot;will be added&quot; -- in reality this docume=
nt adds those parameters.<br>
=C2=A0 =C2=A0 Please update.<br>
<br>
</span>Fixed.<br>
<span class=3D""><br>
<br>
=C2=A0 =C2=A0 (12) In Appendix B: s/If ExtendedLSASupport is enabled/If<br>
=C2=A0 =C2=A0 AreaExtendedLSASupport is enabled<br>
<br>
</span>Fixed.<br>
<span class=3D""><br>
=C2=A0 =C2=A0 (13) &quot;...disabling AreaExtendedLSASupport when ExtendedL=
SASupport is enabled is<br>
=C2=A0 =C2=A0 contradictory and MAY be prohibited by the implementation.&qu=
ot;=C2=A0 I&#39;m not sure I<br>
=C2=A0 =C2=A0 understand this text.<br>
<br>
=C2=A0 =C2=A0 Can AreaExtendedLSASupport be enabled without enabling Extend=
edLSASupport?=C2=A0 I&#39;m<br>
=C2=A0 =C2=A0 assuming that&#39;s the case (from 6.1: &quot;Individual OSPF=
 Areas can be migrated<br>
=C2=A0 =C2=A0 separately...accomplished by enabled AreaExtendedLSASupport&q=
uot;).=C2=A0 If so, then the<br>
=C2=A0 =C2=A0 text above is confusing...<br>
<br>
=C2=A0 =C2=A0 If not prohibited by the implementation, what if it happens<b=
r>
=C2=A0 =C2=A0 (AreaExtendedLSASupport is disabled while ExtendedLSASupport =
is enabled)?=C2=A0 From<br>
=C2=A0 =C2=A0 the previous paragraphs, it seems to me that the network coul=
d lose external<br>
=C2=A0 =C2=A0 routes (if only Legacy LSAs have that information)-- is that =
true?<br>
<br>
=C2=A0 =C2=A0 OTOH, what if the implementation does prohibit the state -- d=
oes that mean that<br>
=C2=A0 =C2=A0 external routes will not be used if they&#39;re not derived f=
rom Legacy LSAs?=C2=A0 I<br>
=C2=A0 =C2=A0 think the text could use some clarification.<br>
<br>
</span>If I add, &quot;disabling AreaExtendedLSASupport for a regular area&=
quot;? What this was meant to capture is the case where Extended-AS-Externa=
l LSAs would be flooded into an area without AreaExtendedLSASupport.<br>
<span class=3D""><br>
<br>
<br>
=C2=A0 =C2=A0 (14) C.1.1. says that &quot;The configuration of ExtendedLSAS=
upport will apply to<br>
=C2=A0 =C2=A0 AS-External LSAs even when AreaExtendedLSASupport takes prece=
dence.&quot;=C2=A0 But<br>
=C2=A0 =C2=A0 Appendix B says that &quot;Legacy AS-Scoped LSAs will still b=
e originated and used<br>
=C2=A0 =C2=A0 for the AS External LSA computation.&quot;=C2=A0 That seems l=
ike a contradiction to me.<br>
<br>
</span>That is why it is disallowed in 13. I changed &quot;MAY&quot; to &qu=
ot;SHOULD&quot;.<br>
<br>
<br>
=C2=A0 =C2=A0 (15) In C.1.1 s/MixedModeOriginate/<wbr>MixedModeOriginateOnl=
y<br>
<br>
Fixed.<br>
<br>
Thanks,<br>
Acee<br>
<br>
<br>
<br>
<br>
</blockquote></div><br></div>

--001a11c17f54dc295805638e55eb--


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From: Alia Atlas <akatlas@gmail.com>
Date: Wed, 24 Jan 2018 19:13:04 -0500
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To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
Cc: Stewart Bryant <stewart.bryant@gmail.com>, "Acee Lindem (acee)" <acee@cisco.com>, OSPF List <ospf@ietf.org>,  "isis-wg@ietf.org" <isis-wg@ietf.org>
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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Hi Les,

Thanks for the suggestions!  I've modified the paragraph about IS-IS to
read:

"IS-IS is an IGP specified and standardized by ISO through ISO 10589:2002
and additional RFC standards with extensions to support IP that has been
deployed in the Internet for decades.  For the IS-IS protocol, LSR-WG=E2=80=
=99s
work is focused on IP routing, currently based on the agreement in RFC 3563
with ISO/JTC1/SC6. The LSR-WG will interact with other standards bodies
that have responsible for standardizing IS-IS. LSR-WG will continue to
support Layer 2 routing (for example TRILL work) as needed."

and updated to "In addition to ongoing maintenance, the following topics
are expected to be among the work-items at the time of chartering." to
clarify that the list isn't constrictive.

I didn't go for IP/IPv6 since IP should cover both IPv4 & IPv6.

The updated version (with Stewart's comments addressed as well) can be
found as charter-ietf-lsf-00-04 at:

https://datatracker.ietf.org/doc/charter-ietf-lsr/

Regards,
Alia

On Wed, Jan 24, 2018 at 6:09 PM, Les Ginsberg (ginsberg) <ginsberg@cisco.co=
m
> wrote:

> It occurred to me after sending this that perhaps a better statement as
> regards IS-IS would be:
>
>
>
> =E2=80=9CLSR=E2=80=99s work is focused on IP/IPv6 and Layer 2 routing=E2=
=80=A6=E2=80=9D
>
>
>
> though admittedly there isn=E2=80=99t much going on as regards Layer2 and=
 IS-IS at
> the moment.
>
>
>
>    Les
>
>
>
>
>
> *From:* Isis-wg [mailto:isis-wg-bounces@ietf.org] *On Behalf Of *Les
> Ginsberg (ginsberg)
> *Sent:* Wednesday, January 24, 2018 2:33 PM
> *To:* Stewart Bryant <stewart.bryant@gmail.com>; Acee Lindem (acee) <
> acee@cisco.com>; Alia Atlas <akatlas@gmail.com>
>
> *Cc:* OSPF List <ospf@ietf.org>; isis-wg@ietf.org
> *Subject:* Re: [Isis-wg] Link-State Routing WG charter
>
>
>
> Since a charter only provides a general definition of the work that falls
> within the purview of the WG it requires some adjunct to keep track of th=
e
> current priorities.
>
> That could be the list of milestones (which OSPF has regularly maintained
> =E2=80=93 but IS-IS has not) =E2=80=93 or it could simply be the list of =
active WG
> documents.
>
> I just don=E2=80=99t see that we should expect the charter to express =E2=
=80=9Cwork in
> progress=E2=80=9D now =E2=80=93 or in the future.
>
>
>
> Alia =E2=80=93 do you think the statement about IS-IS:
>
>
>
> =E2=80=9CLSR=E2=80=99s work is focused on IP routing=E2=80=A6=E2=80=9D
>
>
>
> Could be improved by saying
>
>
>
> =E2=80=9CLSR=E2=80=99s work is focused on IP/IPv6 routing=E2=80=A6=E2=80=
=9D
>
>
>
> ???
>
>
>
>    Les
>
>
>
>
>
> *From:* Isis-wg [mailto:isis-wg-bounces@ietf.org
> <isis-wg-bounces@ietf.org>] *On Behalf Of *Stewart Bryant
> *Sent:* Wednesday, January 24, 2018 10:01 AM
> *To:* Acee Lindem (acee) <acee@cisco.com>; Alia Atlas <akatlas@gmail.com>
> *Cc:* OSPF List <ospf@ietf.org>; isis-wg@ietf.org
> *Subject:* Re: [Isis-wg] Link-State Routing WG charter
>
>
>
> Yes that fixes that.
>
> How about:
>
> s/The following topics are expected to be an initial focus:/ In addition
> to ongoing maintenance, the following topics are expected to be an initia=
l
> focus:/
>
> I am just concerned that we need not to loose focus on work in progress.
>
> - Stewart
>
>
>
> On 24/01/2018 17:54, Acee Lindem (acee) wrote:
>
> How about:
>
>
>
> LSR will coordinate with CCAMP and BIER on their extensions to the LSR
> IGPs as
>
> applicable to LSV protocol operation and scale.
>
>
>
> Thanks,
>
> Acee
>
>
>
> *From: *Isis-wg <isis-wg-bounces@ietf.org> <isis-wg-bounces@ietf.org> on
> behalf of Alia Atlas <akatlas@gmail.com> <akatlas@gmail.com>
> *Date: *Wednesday, January 24, 2018 at 12:42 PM
> *To: *Stewart Bryant <stewart.bryant@gmail.com> <stewart.bryant@gmail.com=
>
> *Cc: *OSPF WG List <ospf@ietf.org> <ospf@ietf.org>, "isis-wg@ietf.org"
> <isis-wg@ietf.org> <isis-wg@ietf.org> <isis-wg@ietf.org>
> *Subject: *Re: [Isis-wg] Link-State Routing WG charter
>
>
>
> Hi Stewart,
>
>
>
> Thanks for the quick feedback.  Feel free to provide suggestions for text
> changes if you have them.
>
> You've certainly written enough charters :-)
>
>
>
> Regards,
>
> Alia
>
>
>
> On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant <stewart.bryant@gmail.co=
m>
> wrote:
>
> Alia,
>
> I think that this merger is long overdue, and hopefully it will help new
> features to be written in an aligned way.
>
> I think the remit to perform general maintenance should slightly clarifie=
d
> since the way the charter is written they look like they are at a lower
> priority than the enumerated list.
>
> I would have thought that "LSR can coordinate with CCAMP and BIER on thei=
r
> extensions " should have been more directive.
>
> - Stewart
>
>
>
> On 24/01/2018 17:18, Alia Atlas wrote:
>
> Here is the proposed charter for the LSR working group
>
> that will be created from the SPF and ISIS working groups.
>
>
>
> This is scheduled for internal review for the IESG telechat on February 8=
.
>
>
>
> https://datatracker.ietf.org/doc/charter-ietf-lsr/
>
>
>
> The Link-State Routing (LSR) Working Group is chartered to document
> current protocol implementation practices and improvements, protocol usag=
e
> scenarios, maintenance and extensions of link-state routing interior
> gateway protocols (IGPs) with a focus on IS-IS, OSPFv2, and OSPFv3.  The
> LSR Working Group is formed by merging the isis and ospf WGs and will tak=
e
> on all their existing adopted work at the time of chartering.
>
>
>
> IS-IS is an IGP specified and standardized by ISO through ISO 10589:2002
> and additional RFC standards with extensions to support IP that has been
> deployed in the Internet for decades.  For the IS-IS protocol, LSR=E2=80=
=99s work
> is focused on IP routing, currently based on the agreement in RFC 3563 wi=
th
> ISO/JTC1/SC6. The LSR WG will interact with other standards bodies that
> have responsible for standardizing IS-IS.
>
>
>
> OSPFv2 [RFC 2328 and extensions], is an IGP that has been deployed in the
> Internet for decades. OSPFv3 [RFC5340 and extensions] provides OSPF for
> IPv6 and IPv4 [RFC5838] which can be delivered over IPv6 or IPv4 [RFC 794=
9].
>
>
>
> The LSR Working Group will generally manage its specific work items by
> milestones agreed with the responsible Area Director.
>
>
>
> The following topics are expected to be an initial focus:
>
>
>
> 1) Improving OSPF support for IPv6 and extensions using OSPFv3 LSA
> Extendibility.
>
> 2) Extensions needed for Segment Routing and associated architectural
> changes
>
> 3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions
>
> 4) Extensions for source-destination routing [draft-ietf-rtgwg-dst-src-
> routing]
>
> 5) Potentially, extensions to better support specific network topologies
> such as
>
> ones commonly used in data centers.
>
>
>
> The Link-State Routing (LSR) Working Group will coordinate with other
> working groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to
> understand the need for extensions and to confirm that the planned work
> meets the needs.  LSR can coordinate with CCAMP and BIER on their
> extensions to the LSR IGPs as useful.  LSR may coordinate with other WGs =
as
> needed.
>
>
>
> Regards,
>
> Alia
>
>
>
> _______________________________________________
>
> Isis-wg mailing list
>
> Isis-wg@ietf.org
>
> https://www.ietf.org/mailman/listinfo/isis-wg
>
>
>
>
>
>
>

--001a1135575ac8878a05638ea43f
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi Les,<div><br></div><div>Thanks for the suggestions!=C2=
=A0 I&#39;ve modified the paragraph about IS-IS to read:</div><div><br></di=
v><div>&quot;IS-IS is an IGP specified and standardized by ISO through ISO =
10589:2002 and additional RFC standards with extensions to support IP that =
has been deployed in the Internet for decades.=C2=A0 For the IS-IS protocol=
, LSR-WG=E2=80=99s work is focused on IP routing, currently based on the ag=
reement in RFC 3563 with ISO/JTC1/SC6. The LSR-WG will interact with other =
standards bodies that have responsible for standardizing IS-IS. LSR-WG will=
 continue to support Layer 2 routing (for example TRILL work) as needed.&qu=
ot;</div><div><br></div><div>and updated to &quot;In addition to ongoing ma=
intenance, the following topics are expected to be among the work-items at =
the time of chartering.&quot; to clarify that the list isn&#39;t constricti=
ve.</div><div><br></div><div>I didn&#39;t go for IP/IPv6 since IP should co=
ver both IPv4 &amp; IPv6.</div><div><br></div><div>The updated version (wit=
h Stewart&#39;s comments addressed as well) can be found as charter-ietf-ls=
f-00-04 at:</div><div><br></div><div><a href=3D"https://datatracker.ietf.or=
g/doc/charter-ietf-lsr/">https://datatracker.ietf.org/doc/charter-ietf-lsr/=
</a><br></div><div><br></div><div>Regards,</div><div>Alia</div></div><div c=
lass=3D"gmail_extra"><br><div class=3D"gmail_quote">On Wed, Jan 24, 2018 at=
 6:09 PM, Les Ginsberg (ginsberg) <span dir=3D"ltr">&lt;<a href=3D"mailto:g=
insberg@cisco.com" target=3D"_blank">ginsberg@cisco.com</a>&gt;</span> wrot=
e:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-l=
eft:1px #ccc solid;padding-left:1ex">





<div bgcolor=3D"white" lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"m_8654412873404958896WordSection1">
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">It occurred to me afte=
r sending this that perhaps a better statement as regards IS-IS would be:<u=
></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">=E2=80=9CLSR=E2=80=99s=
 work is focused on IP/IPv6 and Layer 2 routing=E2=80=A6=E2=80=9D<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">though admittedly ther=
e isn=E2=80=99t much going on as regards Layer2 and IS-IS at the moment.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">=C2=A0=C2=A0 Les<u></u=
><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"color:windowtext">From:</span></b>=
<span style=3D"color:windowtext"> Isis-wg [mailto:<a href=3D"mailto:isis-wg=
-bounces@ietf.org" target=3D"_blank">isis-wg-bounces@ietf.<wbr>org</a>]
<b>On Behalf Of </b>Les Ginsberg (ginsberg)<br>
<b>Sent:</b> Wednesday, January 24, 2018 2:33 PM<br>
<b>To:</b> Stewart Bryant &lt;<a href=3D"mailto:stewart.bryant@gmail.com" t=
arget=3D"_blank">stewart.bryant@gmail.com</a>&gt;; Acee Lindem (acee) &lt;<=
a href=3D"mailto:acee@cisco.com" target=3D"_blank">acee@cisco.com</a>&gt;; =
Alia Atlas &lt;<a href=3D"mailto:akatlas@gmail.com" target=3D"_blank">akatl=
as@gmail.com</a>&gt;</span></p><div><div class=3D"h5"><br>
<b>Cc:</b> OSPF List &lt;<a href=3D"mailto:ospf@ietf.org" target=3D"_blank"=
>ospf@ietf.org</a>&gt;; <a href=3D"mailto:isis-wg@ietf.org" target=3D"_blan=
k">isis-wg@ietf.org</a><br>
<b>Subject:</b> Re: [Isis-wg] Link-State Routing WG charter<u></u><u></u></=
div></div><p></p>
</div>
</div><div><div class=3D"h5">
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">Since a charter only p=
rovides a general definition of the work that falls within the purview of t=
he WG it requires some adjunct to keep track of the current priorities.<u><=
/u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">That could be the list=
 of milestones (which OSPF has regularly maintained =E2=80=93 but IS-IS has=
 not) =E2=80=93 or it could simply be the list of active WG documents.<u></=
u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">I just don=E2=80=99t s=
ee that we should expect the charter to express =E2=80=9Cwork in progress=
=E2=80=9D now =E2=80=93 or in the future.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">Alia =E2=80=93 do you =
think the statement about IS-IS:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">=E2=80=9CLSR=E2=80=99s=
 work is focused on IP routing=E2=80=A6=E2=80=9D<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">Could be improved by s=
aying<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">=E2=80=9CLSR=E2=80=99s=
 work is focused on IP/IPv6 routing=E2=80=A6=E2=80=9D<u></u><u></u></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">???<u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">=C2=A0=C2=A0 Les<u></u=
><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"color:windowtext">From:</span></b>=
<span style=3D"color:windowtext"> Isis-wg [<a href=3D"mailto:isis-wg-bounce=
s@ietf.org" target=3D"_blank">mailto:isis-wg-bounces@ietf.<wbr>org</a>]
<b>On Behalf Of </b>Stewart Bryant<br>
<b>Sent:</b> Wednesday, January 24, 2018 10:01 AM<br>
<b>To:</b> Acee Lindem (acee) &lt;<a href=3D"mailto:acee@cisco.com" target=
=3D"_blank">acee@cisco.com</a>&gt;; Alia Atlas &lt;<a href=3D"mailto:akatla=
s@gmail.com" target=3D"_blank">akatlas@gmail.com</a>&gt;<br>
<b>Cc:</b> OSPF List &lt;<a href=3D"mailto:ospf@ietf.org" target=3D"_blank"=
>ospf@ietf.org</a>&gt;; <a href=3D"mailto:isis-wg@ietf.org" target=3D"_blan=
k">
isis-wg@ietf.org</a><br>
<b>Subject:</b> Re: [Isis-wg] Link-State Routing WG charter<u></u><u></u></=
span></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p>Yes that fixes that.<u></u><u></u></p>
<p>How about:<u></u><u></u></p>
<p>s/<a name=3D"m_8654412873404958896__MailOriginalBody">The following topi=
cs are expected to be an initial focus:/ In addition to ongoing maintenance=
, the following topics are expected to be an initial focus:/<u></u><u></u><=
/a></p>
<p><span>I am just concerned that we need not to loose focus on work in pro=
gress.<u></u><u></u></span></p>
<p><span>- Stewart<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<div>
<p class=3D"MsoNormal"><span>On 24/01/2018 17:54, Acee Lindem (acee) wrote:=
<u></u><u></u></span></p>
</div>
<blockquote style=3D"margin-top:5.0pt;margin-bottom:5.0pt">
<p class=3D"MsoNormal"><span>How about:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span>=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><span style=3D"font-size:10.0pt;font-family:&q=
uot;Courier New&quot;">LSR will coordinate with CCAMP and BIER on their ext=
ensions to the LSR IGPs as</span><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><span style=3D"font-size:10.0pt;font-family:&q=
uot;Courier New&quot;">applicable to LSV protocol operation and scale.=C2=
=A0</span><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span>=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span>Thanks,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span>Acee <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span>=C2=A0<u></u><u></u></span></p>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span><b><span style=3D"f=
ont-size:12.0pt">From:
</span></b></span><span><span style=3D"font-size:12.0pt">Isis-wg
</span></span><a href=3D"mailto:isis-wg-bounces@ietf.org" target=3D"_blank"=
><span><span style=3D"font-size:12.0pt">&lt;isis-wg-bounces@ietf.org&gt;</s=
pan></span><span></span></a><span><span style=3D"font-size:12.0pt">
 on behalf of Alia Atlas </span></span><a href=3D"mailto:akatlas@gmail.com"=
 target=3D"_blank"><span><span style=3D"font-size:12.0pt">&lt;akatlas@gmail=
.com&gt;</span></span><span></span></a><span><span style=3D"font-size:12.0p=
t"><br>
<b>Date: </b>Wednesday, January 24, 2018 at 12:42 PM<br>
<b>To: </b>Stewart Bryant </span></span><a href=3D"mailto:stewart.bryant@gm=
ail.com" target=3D"_blank"><span><span style=3D"font-size:12.0pt">&lt;stewa=
rt.bryant@gmail.com&gt;</span></span><span></span></a><span><span style=3D"=
font-size:12.0pt"><br>
<b>Cc: </b>OSPF WG List </span></span><a href=3D"mailto:ospf@ietf.org" targ=
et=3D"_blank"><span><span style=3D"font-size:12.0pt">&lt;ospf@ietf.org&gt;<=
/span></span><span></span></a><span><span style=3D"font-size:12.0pt">,
</span></span><a href=3D"mailto:isis-wg@ietf.org" target=3D"_blank"><span><=
span style=3D"font-size:12.0pt">&quot;isis-wg@ietf.org&quot;</span></span><=
span></span></a><span><span style=3D"font-size:12.0pt">
</span></span><a href=3D"mailto:isis-wg@ietf.org" target=3D"_blank"><span><=
span style=3D"font-size:12.0pt">&lt;isis-wg@ietf.org&gt;</span></span><span=
></span></a><span><span style=3D"font-size:12.0pt"><br>
<b>Subject: </b>Re: [Isis-wg] Link-State Routing WG charter</span><u></u><u=
></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>Hi Stewart,
<u></u><u></u></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>Thanks for the quic=
k feedback.=C2=A0 Feel free to provide suggestions for text changes if you =
have them.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>You&#39;ve certainl=
y written enough charters :-)<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>Regards,<u></u><u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>Alia<u></u><u></u><=
/span></p>
</div>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>On Wed, Jan 24, 201=
8 at 12:32 PM, Stewart Bryant &lt;</span><a href=3D"mailto:stewart.bryant@g=
mail.com" target=3D"_blank"><span>stewart.bryant@gmail.com</span><span></sp=
an></a><span>&gt;
 wrote:<u></u><u></u></span></p>
<blockquote style=3D"border:none;border-left:solid #cccccc 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<div>
<p style=3D"margin-left:.5in"><span>Alia,<u></u><u></u></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>I think that this m=
erger is long overdue, and hopefully it will help new features to be writte=
n in an aligned way.<br>
<br>
I think the remit to perform general maintenance should slightly clarified =
since the way the charter is written they look like they are at a lower pri=
ority than the enumerated list.<br>
<br>
I would have thought that &quot;LSR can coordinate with CCAMP and BIER on t=
heir extensions &quot; should have been more directive.
<br>
<br>
- Stewart <u></u><u></u></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-right:0in;margin-bottom:12.0pt;margi=
n-left:.5in">
<span>=C2=A0<u></u><u></u></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>On 24/01/2018 17:18=
, Alia Atlas wrote:<u></u><u></u></span></p>
</div>
</div>
</div>
<blockquote style=3D"margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>Here is the propose=
d charter for the LSR working group
<u></u><u></u></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>that will be create=
d from the SPF and ISIS working groups.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>This is scheduled f=
or internal review for the IESG telechat on February 8.<u></u><u></u></span=
></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span></span><a href=3D"h=
ttps://datatracker.ietf.org/doc/charter-ietf-lsr/" target=3D"_blank"><span>=
https://datatracker.ietf.org/<wbr>doc/charter-ietf-lsr/</span><span></span>=
</a><span><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>The Link-State Rout=
ing (LSR) Working Group is chartered to document current protocol implement=
ation practices and improvements, protocol usage scenarios, maintenance
 and extensions of link-state routing interior gateway protocols (IGPs) wit=
h a focus on IS-IS, OSPFv2, and OSPFv3.=C2=A0 The LSR Working Group is form=
ed by merging the isis and ospf WGs and will take on all their existing ado=
pted work at the time of chartering.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>IS-IS is an IGP spe=
cified and standardized by ISO through ISO 10589:2002 and additional RFC st=
andards with extensions to support IP that has been deployed in the Interne=
t
 for decades.=C2=A0 For the IS-IS protocol, LSR=E2=80=99s work is focused o=
n IP routing, currently based on the agreement in RFC 3563 with ISO/JTC1/SC=
6. The LSR WG will interact with other standards bodies that have responsib=
le for standardizing IS-IS.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>OSPFv2 [RFC 2328 an=
d extensions], is an IGP that has been deployed in the Internet for decades=
. OSPFv3 [RFC5340 and extensions] provides OSPF for IPv6 and IPv4 [RFC5838]
 which can be delivered over IPv6 or IPv4 [RFC 7949].<u></u><u></u></span><=
/p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>The LSR Working Gro=
up will generally manage its specific work items by milestones agreed with =
the responsible Area Director.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>The following topic=
s are expected to be an initial focus:<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>1) Improving OSPF s=
upport for IPv6 and extensions using OSPFv3 LSA Extendibility.<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>2) Extensions neede=
d for Segment Routing and associated architectural changes<u></u><u></u></s=
pan></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>3) YANG models for =
IS-IS, OSPFv2, and OSPFv3 and extensions<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>4) Extensions for s=
ource-destination routing [draft-ietf-rtgwg-dst-src-<wbr>routing]<u></u><u>=
</u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>5) Potentially, ext=
ensions to better support specific network topologies such as=C2=A0<u></u><=
u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>ones commonly used =
in data centers.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>The Link-State Rout=
ing (LSR) Working Group will coordinate with other working groups, such as =
RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to understand the need for exte=
nsions
 and to confirm that the planned work meets the needs.=C2=A0 LSR can coordi=
nate with CCAMP and BIER on their extensions to the LSR IGPs as useful.=C2=
=A0 LSR may coordinate with other WGs as needed.<u></u><u></u></span></p>
</div>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>Regards,<u></u><u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>Alia<u></u><u></u><=
/span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-right:0in;margin-bottom:12.0pt;margi=
n-left:.5in">
<span><br>
<br>
<u></u><u></u></span></p>
</div>
</div>
<pre style=3D"margin-left:.5in"><span>______________________________<wbr>__=
_______________<u></u><u></u></span></pre>
<pre style=3D"margin-left:.5in"><span>Isis-wg mailing list<u></u><u></u></s=
pan></pre>
<pre style=3D"margin-left:.5in"><span></span><a href=3D"mailto:Isis-wg@ietf=
.org" target=3D"_blank"><span>Isis-wg@ietf.org</span><span></span></a><span=
><u></u><u></u></span></pre>
<pre style=3D"margin-left:.5in"><span></span><a href=3D"https://www.ietf.or=
g/mailman/listinfo/isis-wg" target=3D"_blank"><span>https://www.ietf.org/ma=
ilman/<wbr>listinfo/isis-wg</span><span></span></a><span><u></u><u></u></sp=
an></pre>
</blockquote>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0<u></u><u></u=
></span></p>
</div>
</blockquote>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span>=C2=A0</span><u></u=
><u></u></p>
</div>
</blockquote>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Ti=
mes New Roman&quot;,serif"><u></u>=C2=A0<u></u></span></p>
</div>
</div></div></div>
</div>
</div>

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

--001a1135575ac8878a05638ea43f--


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From: Alia Atlas <akatlas@gmail.com>
Date: Wed, 24 Jan 2018 19:17:07 -0500
Message-ID: <CAG4d1re==FFktpSsZjE0ns5axvr9hBG70Du+kNTSHVxYm-oOUA@mail.gmail.com>
To: Jeff Tantsura <jefftant.ietf@gmail.com>
Cc: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, Stewart Bryant <stewart.bryant@gmail.com>,  "Acee Lindem (acee)" <acee@cisco.com>, OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/dTq-5xK6EqRHKgs0F-DFH69cToA>
Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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On Wed, Jan 24, 2018 at 6:11 PM, Jeff Tantsura <jefftant.ietf@gmail.com>
wrote:

> Wouldn=E2=80=99t L2 reference would be a bit outdated?
>

There has been work from IEEE and from TRILL in the past as well as other
aspects  (e.g. RFC 6165, RFC 6326,
RFC 6329, RFC 7176) and - particularly with TRILL closing soon - making
sure that such work isn't out of scope
seems useful.

Regards,
Alia


>
>
> Cheers,
>
> Jeff
>
>
>
> *From: *OSPF <ospf-bounces@ietf.org> on behalf of "Les Ginsberg
> (ginsberg)" <ginsberg@cisco.com>
> *Date: *Wednesday, January 24, 2018 at 15:09
> *To: *Stewart Bryant <stewart.bryant@gmail.com>, "Acee Lindem (acee)" <
> acee@cisco.com>, Alia Atlas <akatlas@gmail.com>
> *Cc: *OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
> *Subject: *Re: [OSPF] [Isis-wg] Link-State Routing WG charter
>
>
>
> It occurred to me after sending this that perhaps a better statement as
> regards IS-IS would be:
>
>
>
> =E2=80=9CLSR=E2=80=99s work is focused on IP/IPv6 and Layer 2 routing=E2=
=80=A6=E2=80=9D
>
>
>
> though admittedly there isn=E2=80=99t much going on as regards Layer2 and=
 IS-IS at
> the moment.
>
>
>
>    Les
>
>
>
>
>
> *From:* Isis-wg [mailto:isis-wg-bounces@ietf.org] *On Behalf Of *Les
> Ginsberg (ginsberg)
> *Sent:* Wednesday, January 24, 2018 2:33 PM
> *To:* Stewart Bryant <stewart.bryant@gmail.com>; Acee Lindem (acee) <
> acee@cisco.com>; Alia Atlas <akatlas@gmail.com>
> *Cc:* OSPF List <ospf@ietf.org>; isis-wg@ietf.org
> *Subject:* Re: [Isis-wg] Link-State Routing WG charter
>
>
>
> Since a charter only provides a general definition of the work that falls
> within the purview of the WG it requires some adjunct to keep track of th=
e
> current priorities.
>
> That could be the list of milestones (which OSPF has regularly maintained
> =E2=80=93 but IS-IS has not) =E2=80=93 or it could simply be the list of =
active WG
> documents.
>
> I just don=E2=80=99t see that we should expect the charter to express =E2=
=80=9Cwork in
> progress=E2=80=9D now =E2=80=93 or in the future.
>
>
>
> Alia =E2=80=93 do you think the statement about IS-IS:
>
>
>
> =E2=80=9CLSR=E2=80=99s work is focused on IP routing=E2=80=A6=E2=80=9D
>
>
>
> Could be improved by saying
>
>
>
> =E2=80=9CLSR=E2=80=99s work is focused on IP/IPv6 routing=E2=80=A6=E2=80=
=9D
>
>
>
> ???
>
>
>
>    Les
>
>
>
>
>
> *From:* Isis-wg [mailto:isis-wg-bounces@ietf.org
> <isis-wg-bounces@ietf.org>] *On Behalf Of *Stewart Bryant
> *Sent:* Wednesday, January 24, 2018 10:01 AM
> *To:* Acee Lindem (acee) <acee@cisco.com>; Alia Atlas <akatlas@gmail.com>
> *Cc:* OSPF List <ospf@ietf.org>; isis-wg@ietf.org
> *Subject:* Re: [Isis-wg] Link-State Routing WG charter
>
>
>
> Yes that fixes that.
>
> How about:
>
> s/The following topics are expected to be an initial focus:/ In addition
> to ongoing maintenance, the following topics are expected to be an initia=
l
> focus:/
>
> I am just concerned that we need not to loose focus on work in progress.
>
> - Stewart
>
>
>
> On 24/01/2018 17:54, Acee Lindem (acee) wrote:
>
> How about:
>
>
>
> LSR will coordinate with CCAMP and BIER on their extensions to the LSR
> IGPs as
>
> applicable to LSV protocol operation and scale.
>
>
>
> Thanks,
>
> Acee
>
>
>
> *From: *Isis-wg <isis-wg-bounces@ietf.org> <isis-wg-bounces@ietf.org> on
> behalf of Alia Atlas <akatlas@gmail.com> <akatlas@gmail.com>
> *Date: *Wednesday, January 24, 2018 at 12:42 PM
> *To: *Stewart Bryant <stewart.bryant@gmail.com> <stewart.bryant@gmail.com=
>
> *Cc: *OSPF WG List <ospf@ietf.org> <ospf@ietf.org>, "isis-wg@ietf.org"
> <isis-wg@ietf.org> <isis-wg@ietf.org> <isis-wg@ietf.org>
> *Subject: *Re: [Isis-wg] Link-State Routing WG charter
>
>
>
> Hi Stewart,
>
>
>
> Thanks for the quick feedback.  Feel free to provide suggestions for text
> changes if you have them.
>
> You've certainly written enough charters :-)
>
>
>
> Regards,
>
> Alia
>
>
>
> On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant <stewart.bryant@gmail.co=
m>
> wrote:
>
> Alia,
>
> I think that this merger is long overdue, and hopefully it will help new
> features to be written in an aligned way.
>
> I think the remit to perform general maintenance should slightly clarifie=
d
> since the way the charter is written they look like they are at a lower
> priority than the enumerated list.
>
> I would have thought that "LSR can coordinate with CCAMP and BIER on thei=
r
> extensions " should have been more directive.
>
> - Stewart
>
>
>
> On 24/01/2018 17:18, Alia Atlas wrote:
>
> Here is the proposed charter for the LSR working group
>
> that will be created from the SPF and ISIS working groups.
>
>
>
> This is scheduled for internal review for the IESG telechat on February 8=
.
>
>
>
> https://datatracker.ietf.org/doc/charter-ietf-lsr/
>
>
>
> The Link-State Routing (LSR) Working Group is chartered to document
> current protocol implementation practices and improvements, protocol usag=
e
> scenarios, maintenance and extensions of link-state routing interior
> gateway protocols (IGPs) with a focus on IS-IS, OSPFv2, and OSPFv3.  The
> LSR Working Group is formed by merging the isis and ospf WGs and will tak=
e
> on all their existing adopted work at the time of chartering.
>
>
>
> IS-IS is an IGP specified and standardized by ISO through ISO 10589:2002
> and additional RFC standards with extensions to support IP that has been
> deployed in the Internet for decades.  For the IS-IS protocol, LSR=E2=80=
=99s work
> is focused on IP routing, currently based on the agreement in RFC 3563 wi=
th
> ISO/JTC1/SC6. The LSR WG will interact with other standards bodies that
> have responsible for standardizing IS-IS.
>
>
>
> OSPFv2 [RFC 2328 and extensions], is an IGP that has been deployed in the
> Internet for decades. OSPFv3 [RFC5340 and extensions] provides OSPF for
> IPv6 and IPv4 [RFC5838] which can be delivered over IPv6 or IPv4 [RFC 794=
9].
>
>
>
> The LSR Working Group will generally manage its specific work items by
> milestones agreed with the responsible Area Director.
>
>
>
> The following topics are expected to be an initial focus:
>
>
>
> 1) Improving OSPF support for IPv6 and extensions using OSPFv3 LSA
> Extendibility.
>
> 2) Extensions needed for Segment Routing and associated architectural
> changes
>
> 3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions
>
> 4) Extensions for source-destination routing [draft-ietf-rtgwg-dst-src-
> routing]
>
> 5) Potentially, extensions to better support specific network topologies
> such as
>
> ones commonly used in data centers.
>
>
>
> The Link-State Routing (LSR) Working Group will coordinate with other
> working groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to
> understand the need for extensions and to confirm that the planned work
> meets the needs.  LSR can coordinate with CCAMP and BIER on their
> extensions to the LSR IGPs as useful.  LSR may coordinate with other WGs =
as
> needed.
>
>
>
> Regards,
>
> Alia
>
>
>
>
> _______________________________________________
>
> Isis-wg mailing list
>
> Isis-wg@ietf.org
>
> https://www.ietf.org/mailman/listinfo/isis-wg
>
>
>
>
>
>
>
> _______________________________________________ OSPF mailing list
> OSPF@ietf.org https://www.ietf.org/mailman/listinfo/ospf
>

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<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote">On W=
ed, Jan 24, 2018 at 6:11 PM, Jeff Tantsura <span dir=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"gmail_quote" style=3D"margin:=
0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor=3D"whi=
te" lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div class=3D"m_-80903277=
45857645623WordSection1"><p class=3D"MsoNormal"><span style=3D"color:window=
text">Wouldn=E2=80=99t L2 reference would be a bit outdated?</span></p></di=
v></div></blockquote><div><br></div><div>There has been work from IEEE and =
from TRILL in the past as well as other aspects=C2=A0 (e.g. RFC 6165, RFC 6=
326,=C2=A0</div><div>RFC 6329, RFC 7176) and - particularly with TRILL clos=
ing soon - making sure that such work isn&#39;t out of scope</div><div>seem=
s useful.</div><div><br></div><div>Regards,</div><div>Alia</div><div>=C2=A0=
</div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-l=
eft:1px #ccc solid;padding-left:1ex"><div bgcolor=3D"white" lang=3D"EN-US" =
link=3D"blue" vlink=3D"purple"><div class=3D"m_-8090327745857645623WordSect=
ion1"><p class=3D"MsoNormal"><span style=3D"color:windowtext"> <u></u><u></=
u></span></p><p class=3D"MsoNormal"><span style=3D"color:windowtext"><u></u=
>=C2=A0<u></u></span></p><div><p class=3D"MsoNormal">Cheers,<u></u><u></u><=
/p></div><p class=3D"MsoNormal">Jeff<span style=3D"color:windowtext"><u></u=
><u></u></span></p><p class=3D"MsoNormal"><span style=3D"color:windowtext">=
<u></u>=C2=A0<u></u></span></p><div style=3D"border:none;border-top:solid #=
b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class=3D"MsoNormal"><b><span sty=
le=3D"font-size:12.0pt">From: </span></b><span style=3D"font-size:12.0pt">O=
SPF &lt;<a href=3D"mailto:ospf-bounces@ietf.org" target=3D"_blank">ospf-bou=
nces@ietf.org</a>&gt; on behalf of &quot;Les Ginsberg (ginsberg)&quot; &lt;=
<a href=3D"mailto:ginsberg@cisco.com" target=3D"_blank">ginsberg@cisco.com<=
/a>&gt;<br><b>Date: </b>Wednesday, January 24, 2018 at 15:09<br><b>To: </b>=
Stewart Bryant &lt;<a href=3D"mailto:stewart.bryant@gmail.com" target=3D"_b=
lank">stewart.bryant@gmail.com</a>&gt;, &quot;Acee Lindem (acee)&quot; &lt;=
<a href=3D"mailto:acee@cisco.com" target=3D"_blank">acee@cisco.com</a>&gt;,=
 Alia Atlas &lt;<a href=3D"mailto:akatlas@gmail.com" target=3D"_blank">akat=
las@gmail.com</a>&gt;<br><b>Cc: </b>OSPF List &lt;<a href=3D"mailto:ospf@ie=
tf.org" target=3D"_blank">ospf@ietf.org</a>&gt;, &quot;<a href=3D"mailto:is=
is-wg@ietf.org" target=3D"_blank">isis-wg@ietf.org</a>&quot; &lt;<a href=3D=
"mailto:isis-wg@ietf.org" target=3D"_blank">isis-wg@ietf.org</a>&gt;<br><b>=
Subject: </b>Re: [OSPF] [Isis-wg] Link-State Routing WG charter<u></u><u></=
u></span></p></div><div><div class=3D"h5"><div><p class=3D"MsoNormal"><span=
 style=3D"color:windowtext"><u></u>=C2=A0<u></u></span></p></div><p class=
=3D"MsoNormal"><span style=3D"color:#1f497d">It occurred to me after sendin=
g this that perhaps a better statement as regards IS-IS would be:</span><u>=
</u><u></u></p><p class=3D"MsoNormal"><span style=3D"color:#1f497d">=C2=A0<=
/span><u></u><u></u></p><p class=3D"MsoNormal"><span style=3D"color:#1f497d=
">=E2=80=9CLSR=E2=80=99s work is focused on IP/IPv6 and Layer 2 routing=E2=
=80=A6=E2=80=9D</span><u></u><u></u></p><p class=3D"MsoNormal"><span style=
=3D"color:#1f497d">=C2=A0</span><u></u><u></u></p><p class=3D"MsoNormal"><s=
pan style=3D"color:#1f497d">though admittedly there isn=E2=80=99t much goin=
g on as regards Layer2 and IS-IS at the moment. </span><u></u><u></u></p><p=
 class=3D"MsoNormal"><span style=3D"color:#1f497d">=C2=A0</span><u></u><u><=
/u></p><p class=3D"MsoNormal"><span style=3D"color:#1f497d">=C2=A0=C2=A0 Le=
s</span><u></u><u></u></p><p class=3D"MsoNormal"><span style=3D"color:#1f49=
7d">=C2=A0</span><u></u><u></u></p><p class=3D"MsoNormal"><span style=3D"co=
lor:#1f497d">=C2=A0</span><u></u><u></u></p><div style=3D"border:none;borde=
r-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt"><div><div style=3D"borde=
r:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0in 0in 0in"><p class=
=3D"MsoNormal"><b><span style=3D"color:windowtext">From:</span></b><span st=
yle=3D"color:windowtext"> Isis-wg [mailto:<a href=3D"mailto:isis-wg-bounces=
@ietf.org" target=3D"_blank">isis-wg-bounces@ietf.<wbr>org</a>] <b>On Behal=
f Of </b>Les Ginsberg (ginsberg)<br><b>Sent:</b> Wednesday, January 24, 201=
8 2:33 PM<br><b>To:</b> Stewart Bryant &lt;<a href=3D"mailto:stewart.bryant=
@gmail.com" target=3D"_blank">stewart.bryant@gmail.com</a>&gt;; Acee Lindem=
 (acee) &lt;<a href=3D"mailto:acee@cisco.com" target=3D"_blank">acee@cisco.=
com</a>&gt;; Alia Atlas &lt;<a href=3D"mailto:akatlas@gmail.com" target=3D"=
_blank">akatlas@gmail.com</a>&gt;<br><b>Cc:</b> OSPF List &lt;<a href=3D"ma=
ilto:ospf@ietf.org" target=3D"_blank">ospf@ietf.org</a>&gt;; <a href=3D"mai=
lto:isis-wg@ietf.org" target=3D"_blank">isis-wg@ietf.org</a><br><b>Subject:=
</b> Re: [Isis-wg] Link-State Routing WG charter</span><u></u><u></u></p></=
div></div><p class=3D"MsoNormal">=C2=A0<u></u><u></u></p><p class=3D"MsoNor=
mal"><span style=3D"color:#1f497d">Since a charter only provides a general =
definition of the work that falls within the purview of the WG it requires =
some adjunct to keep track of the current priorities.</span><u></u><u></u><=
/p><p class=3D"MsoNormal"><span style=3D"color:#1f497d">That could be the l=
ist of milestones (which OSPF has regularly maintained =E2=80=93 but IS-IS =
has not) =E2=80=93 or it could simply be the list of active WG documents.</=
span><u></u><u></u></p><p class=3D"MsoNormal"><span style=3D"color:#1f497d"=
>I just don=E2=80=99t see that we should expect the charter to express =E2=
=80=9Cwork in progress=E2=80=9D now =E2=80=93 or in the future.</span><u></=
u><u></u></p><p class=3D"MsoNormal"><span style=3D"color:#1f497d">=C2=A0</s=
pan><u></u><u></u></p><p class=3D"MsoNormal"><span style=3D"color:#1f497d">=
Alia =E2=80=93 do you think the statement about IS-IS:</span><u></u><u></u>=
</p><p class=3D"MsoNormal"><span style=3D"color:#1f497d">=C2=A0</span><u></=
u><u></u></p><p class=3D"MsoNormal"><span style=3D"color:#1f497d">=E2=80=9C=
LSR=E2=80=99s work is focused on IP routing=E2=80=A6=E2=80=9D</span><u></u>=
<u></u></p><p class=3D"MsoNormal"><span style=3D"color:#1f497d">=C2=A0</spa=
n><u></u><u></u></p><p class=3D"MsoNormal"><span style=3D"color:#1f497d">Co=
uld be improved by saying</span><u></u><u></u></p><p class=3D"MsoNormal"><s=
pan style=3D"color:#1f497d">=C2=A0</span><u></u><u></u></p><p class=3D"MsoN=
ormal"><span style=3D"color:#1f497d">=E2=80=9CLSR=E2=80=99s work is focused=
 on IP/IPv6 routing=E2=80=A6=E2=80=9D</span><u></u><u></u></p><p class=3D"M=
soNormal"><span style=3D"color:#1f497d">=C2=A0</span><u></u><u></u></p><p c=
lass=3D"MsoNormal"><span style=3D"color:#1f497d">???</span><u></u><u></u></=
p><p class=3D"MsoNormal"><span style=3D"color:#1f497d">=C2=A0</span><u></u>=
<u></u></p><p class=3D"MsoNormal"><span style=3D"color:#1f497d">=C2=A0=C2=
=A0 Les</span><u></u><u></u></p><p class=3D"MsoNormal"><span style=3D"color=
:#1f497d">=C2=A0</span><u></u><u></u></p><p class=3D"MsoNormal"><span style=
=3D"color:#1f497d">=C2=A0</span><u></u><u></u></p><div style=3D"border:none=
;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt"><div><div style=3D=
"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0in 0in 0in"><p c=
lass=3D"MsoNormal"><b><span style=3D"color:windowtext">From:</span></b><spa=
n style=3D"color:windowtext"> Isis-wg [<a href=3D"mailto:isis-wg-bounces@ie=
tf.org" target=3D"_blank">mailto:isis-wg-bounces@ietf.<wbr>org</a>] <b>On B=
ehalf Of </b>Stewart Bryant<br><b>Sent:</b> Wednesday, January 24, 2018 10:=
01 AM<br><b>To:</b> Acee Lindem (acee) &lt;<a href=3D"mailto:acee@cisco.com=
" target=3D"_blank">acee@cisco.com</a>&gt;; Alia Atlas &lt;<a href=3D"mailt=
o:akatlas@gmail.com" target=3D"_blank">akatlas@gmail.com</a>&gt;<br><b>Cc:<=
/b> OSPF List &lt;<a href=3D"mailto:ospf@ietf.org" target=3D"_blank">ospf@i=
etf.org</a>&gt;; <a href=3D"mailto:isis-wg@ietf.org" target=3D"_blank">isis=
-wg@ietf.org</a><br><b>Subject:</b> Re: [Isis-wg] Link-State Routing WG cha=
rter</span><u></u><u></u></p></div></div><p class=3D"MsoNormal">=C2=A0<u></=
u><u></u></p><p>Yes that fixes that.<u></u><u></u></p><p>How about:<u></u><=
u></u></p><p>s/The following topics are expected to be an initial focus:/ I=
n addition to ongoing maintenance, the following topics are expected to be =
an initial focus:/<u></u><u></u></p><p>I am just concerned that we need not=
 to loose focus on work in progress.<u></u><u></u></p><p>- Stewart<u></u><u=
></u></p><p class=3D"MsoNormal">=C2=A0<u></u><u></u></p><div><p class=3D"Ms=
oNormal">On 24/01/2018 17:54, Acee Lindem (acee) wrote:<u></u><u></u></p></=
div><blockquote style=3D"margin-top:5.0pt;margin-bottom:5.0pt"><p class=3D"=
MsoNormal">How about:<u></u><u></u></p><p class=3D"MsoNormal">=C2=A0<u></u>=
<u></u></p><p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-fami=
ly:&quot;Courier New&quot;,serif">LSR will coordinate with CCAMP and BIER o=
n their extensions to the LSR IGPs as</span><u></u><u></u></p><p class=3D"M=
soNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Courier New&quo=
t;,serif">applicable to LSV protocol operation and scale.=C2=A0</span><u></=
u><u></u></p><p class=3D"MsoNormal">=C2=A0<u></u><u></u></p><p class=3D"Mso=
Normal">Thanks,<u></u><u></u></p><p class=3D"MsoNormal">Acee <u></u><u></u>=
</p><p class=3D"MsoNormal">=C2=A0<u></u><u></u></p><div style=3D"border:non=
e;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class=3D"Mso=
Normal" style=3D"margin-left:.5in"><b><span style=3D"font-size:12.0pt">From=
: </span></b><span style=3D"font-size:12.0pt">Isis-wg </span><a href=3D"mai=
lto:isis-wg-bounces@ietf.org" target=3D"_blank"><span style=3D"font-size:12=
.0pt">&lt;isis-wg-bounces@ietf.org&gt;</span></a><span style=3D"font-size:1=
2.0pt"> on behalf of Alia Atlas </span><a href=3D"mailto:akatlas@gmail.com"=
 target=3D"_blank"><span style=3D"font-size:12.0pt">&lt;akatlas@gmail.com&g=
t;</span></a><span style=3D"font-size:12.0pt"><br><b>Date: </b>Wednesday, J=
anuary 24, 2018 at 12:42 PM<br><b>To: </b>Stewart Bryant </span><a href=3D"=
mailto:stewart.bryant@gmail.com" target=3D"_blank"><span style=3D"font-size=
:12.0pt">&lt;stewart.bryant@gmail.com&gt;</span></a><span style=3D"font-siz=
e:12.0pt"><br><b>Cc: </b>OSPF WG List </span><a href=3D"mailto:ospf@ietf.or=
g" target=3D"_blank"><span style=3D"font-size:12.0pt">&lt;ospf@ietf.org&gt;=
</span></a><span style=3D"font-size:12.0pt">, </span><a href=3D"mailto:isis=
-wg@ietf.org" target=3D"_blank"><span style=3D"font-size:12.0pt">&quot;isis=
-wg@ietf.org&quot;</span></a><span style=3D"font-size:12.0pt"> </span><a hr=
ef=3D"mailto:isis-wg@ietf.org" target=3D"_blank"><span style=3D"font-size:1=
2.0pt">&lt;isis-wg@ietf.org&gt;</span></a><span style=3D"font-size:12.0pt">=
<br><b>Subject: </b>Re: [Isis-wg] Link-State Routing WG charter</span><u></=
u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5in">=
=C2=A0<u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-l=
eft:.5in">Hi Stewart, <u></u><u></u></p><div><p class=3D"MsoNormal" style=
=3D"margin-left:.5in">=C2=A0<u></u><u></u></p></div><div><p class=3D"MsoNor=
mal" style=3D"margin-left:.5in">Thanks for the quick feedback.=C2=A0 Feel f=
ree to provide suggestions for text changes if you have them.<u></u><u></u>=
</p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5in">You&#39;ve=
 certainly written enough charters :-)<u></u><u></u></p></div><div><p class=
=3D"MsoNormal" style=3D"margin-left:.5in">=C2=A0<u></u><u></u></p></div><di=
v><p class=3D"MsoNormal" style=3D"margin-left:.5in">Regards,<u></u><u></u><=
/p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5in">Alia<u></u>=
<u></u></p></div></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5i=
n">=C2=A0<u></u><u></u></p><div><p class=3D"MsoNormal" style=3D"margin-left=
:.5in">On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant &lt;<a href=3D"mail=
to:stewart.bryant@gmail.com" target=3D"_blank">stewart.bryant@gmail.com</a>=
&gt; wrote:<u></u><u></u></p><blockquote style=3D"border:none;border-left:s=
olid #cccccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5=
.0pt;margin-right:0in;margin-bottom:5.0pt"><div><p style=3D"margin-left:.5i=
n">Alia,<u></u><u></u></p><p class=3D"MsoNormal" style=3D"margin-left:.5in"=
>I think that this merger is long overdue, and hopefully it will help new f=
eatures to be written in an aligned way.<br><br>I think the remit to perfor=
m general maintenance should slightly clarified since the way the charter i=
s written they look like they are at a lower priority than the enumerated l=
ist.<br><br>I would have thought that &quot;LSR can coordinate with CCAMP a=
nd BIER on their extensions &quot; should have been more directive. <br><br=
>- Stewart <u></u><u></u></p><div><div><p class=3D"MsoNormal" style=3D"marg=
in-right:0in;margin-bottom:12.0pt;margin-left:.5in">=C2=A0<u></u><u></u></p=
><div><p class=3D"MsoNormal" style=3D"margin-left:.5in">On 24/01/2018 17:18=
, Alia Atlas wrote:<u></u><u></u></p></div></div></div><blockquote style=3D=
"margin-top:5.0pt;margin-bottom:5.0pt"><div><div><div><p class=3D"MsoNormal=
" style=3D"margin-left:.5in">Here is the proposed charter for the LSR worki=
ng group <u></u><u></u></p><div><p class=3D"MsoNormal" style=3D"margin-left=
:.5in">that will be created from the SPF and ISIS working groups.<u></u><u>=
</u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5in">=C2=A0=
<u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5=
in">This is scheduled for internal review for the IESG telechat on February=
 8.<u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left=
:.5in">=C2=A0<u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"m=
argin-left:.5in"><a href=3D"https://datatracker.ietf.org/doc/charter-ietf-l=
sr/" target=3D"_blank">https://datatracker.ietf.org/<wbr>doc/charter-ietf-l=
sr/</a><u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-=
left:.5in">=C2=A0<u></u><u></u></p></div><div><div><p class=3D"MsoNormal" s=
tyle=3D"margin-left:.5in">The Link-State Routing (LSR) Working Group is cha=
rtered to document current protocol implementation practices and improvemen=
ts, protocol usage scenarios, maintenance and extensions of link-state rout=
ing interior gateway protocols (IGPs) with a focus on IS-IS, OSPFv2, and OS=
PFv3.=C2=A0 The LSR Working Group is formed by merging the isis and ospf WG=
s and will take on all their existing adopted work at the time of charterin=
g.<u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:=
.5in">=C2=A0<u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"ma=
rgin-left:.5in">IS-IS is an IGP specified and standardized by ISO through I=
SO 10589:2002 and additional RFC standards with extensions to support IP th=
at has been deployed in the Internet for decades.=C2=A0 For the IS-IS proto=
col, LSR=E2=80=99s work is focused on IP routing, currently based on the ag=
reement in RFC 3563 with ISO/JTC1/SC6. The LSR WG will interact with other =
standards bodies that have responsible for standardizing IS-IS.<u></u><u></=
u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5in">=C2=A0<u=
></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5in=
">OSPFv2 [RFC 2328 and extensions], is an IGP that has been deployed in the=
 Internet for decades. OSPFv3 [RFC5340 and extensions] provides OSPF for IP=
v6 and IPv4 [RFC5838] which can be delivered over IPv6 or IPv4 [RFC 7949].<=
u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5i=
n">=C2=A0<u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margi=
n-left:.5in">The LSR Working Group will generally manage its specific work =
items by milestones agreed with the responsible Area Director.<u></u><u></u=
></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5in">=C2=A0<u>=
</u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5in"=
>The following topics are expected to be an initial focus:<u></u><u></u></p=
></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5in">=C2=A0<u></u>=
<u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5in">1) =
Improving OSPF support for IPv6 and extensions using OSPFv3 LSA Extendibili=
ty.<u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left=
:.5in">2) Extensions needed for Segment Routing and associated architectura=
l changes<u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margi=
n-left:.5in">3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions<u>=
</u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5in"=
>4) Extensions for source-destination routing [draft-ietf-rtgwg-dst-src-<wb=
r>routing]<u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"marg=
in-left:.5in">5) Potentially, extensions to better support specific network=
 topologies such as=C2=A0<u></u><u></u></p></div><div><p class=3D"MsoNormal=
" style=3D"margin-left:.5in">ones commonly used in data centers.<u></u><u><=
/u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5in">=C2=A0<=
u></u><u></u></p></div><div><p class=3D"MsoNormal" style=3D"margin-left:.5i=
n">The Link-State Routing (LSR) Working Group will coordinate with other wo=
rking groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to unders=
tand the need for extensions and to confirm that the planned work meets the=
 needs.=C2=A0 LSR can coordinate with CCAMP and BIER on their extensions to=
 the LSR IGPs as useful.=C2=A0 LSR may coordinate with other WGs as needed.=
<u></u><u></u></p></div></div><div><p class=3D"MsoNormal" style=3D"margin-l=
eft:.5in">=C2=A0<u></u><u></u></p></div><div><p class=3D"MsoNormal" style=
=3D"margin-left:.5in">Regards,<u></u><u></u></p></div><div><p class=3D"MsoN=
ormal" style=3D"margin-left:.5in">Alia<u></u><u></u></p></div></div><p clas=
s=3D"MsoNormal" style=3D"margin-right:0in;margin-bottom:12.0pt;margin-left:=
.5in"><br><br><br><u></u><u></u></p></div></div><pre style=3D"margin-left:.=
5in">______________________________<wbr>_________________<u></u><u></u></pr=
e><pre style=3D"margin-left:.5in">Isis-wg mailing list<u></u><u></u></pre><=
pre style=3D"margin-left:.5in"><a href=3D"mailto:Isis-wg@ietf.org" target=
=3D"_blank">Isis-wg@ietf.org</a><u></u><u></u></pre><pre style=3D"margin-le=
ft:.5in"><a href=3D"https://www.ietf.org/mailman/listinfo/isis-wg" target=
=3D"_blank">https://www.ietf.org/mailman/<wbr>listinfo/isis-wg</a><u></u><u=
></u></pre></blockquote><p class=3D"MsoNormal" style=3D"margin-left:.5in">=
=C2=A0<u></u><u></u></p></div></blockquote></div><p class=3D"MsoNormal" sty=
le=3D"margin-left:.5in">=C2=A0<u></u><u></u></p></div></blockquote><p class=
=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Times New =
Roman&quot;,serif">=C2=A0</span><u></u><u></u></p></div></div></div></div><=
p class=3D"MsoNormal"><span style=3D"color:windowtext">____________________=
__________<wbr>_________________ OSPF mailing list <a href=3D"mailto:OSPF@i=
etf.org" target=3D"_blank">OSPF@ietf.org</a> <a href=3D"https://www.ietf.or=
g/mailman/listinfo/ospf" target=3D"_blank">https://www.ietf.org/mailman/<wb=
r>listinfo/ospf</a> <u></u><u></u></span></p></div></div>
</blockquote></div><br></div></div>

--001a113e15d64513e305638eb3f1--


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Subject: [OSPF] I-D Action: draft-ietf-ospf-ospfv3-lsa-extend-22.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 Open Shortest Path First IGP WG of the IETF.

        Title           : OSPFv3 LSA Extendibility
        Authors         : Acee Lindem
                          Abhay Roy
                          Dirk Goethals
                          Veerendranatha Reddy Vallem
                          Fred Baker
	Filename        : draft-ietf-ospf-ospfv3-lsa-extend-22.txt
	Pages           : 33
	Date            : 2018-01-24

Abstract:
   OSPFv3 requires functional extension beyond what can readily be done
   with the fixed-format Link State Advertisement (LSA) as described in
   RFC 5340.  Without LSA extension, attributes associated with OSPFv3
   links and advertised IPv6 prefixes must be advertised in separate
   LSAs and correlated to the fixed-format LSAs.  This document extends
   the LSA format by encoding the existing OSPFv3 LSA information in
   Type-Length-Value (TLV) tuples and allowing advertisement of
   additional information with additional TLVs.  Backward compatibility
   mechanisms are also described.

   This document updates RFC 5340, "OSPF for IPv6", and RFC 5838,
   "Support of Address Families in OSPFv3" by providing TLV-based
   encodings for the base OSPFv3 unicast support and OSPFv3 address
   family support.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-ospfv3-lsa-extend/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-ospfv3-lsa-extend-22
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-ospfv3-lsa-extend-22

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-ospfv3-lsa-extend-22


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: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: Alia Atlas <akatlas@gmail.com>
CC: Stewart Bryant <stewart.bryant@gmail.com>, "Acee Lindem (acee)" <acee@cisco.com>, OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Thread-Topic: [Isis-wg] Link-State Routing WG charter
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From: Shraddha Hegde <shraddha@juniper.net>
To: Alvaro Retana <aretana.ietf@gmail.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>, Acee Lindem <acee@cisco.com>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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Subject: Re: [OSPF] Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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From nobody Wed Jan 24 23:04:25 2018
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Subject: [OSPF] I-D Action: draft-ietf-ospf-link-overload-14.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 Open Shortest Path First IGP WG of the IETF.

        Title           : OSPF Graceful Link shutdown
        Authors         : Shraddha Hegde
                          Pushpasis Sarkar
                          Hannes Gredler
                          Mohan Nanduri
                          Luay Jalil
	Filename        : draft-ietf-ospf-link-overload-14.txt
	Pages           : 16
	Date            : 2018-01-24

Abstract:
   When a link is being prepared to be taken out of service, the traffic
   needs to be diverted from both ends of the link.  Increasing the
   metric to the highest value on one side of the link is not sufficient
   to divert the traffic flowing in the other direction.

   It is useful for routers in an OSPFv2 or OSPFv3 routing domain to be
   able to advertise a link as being in a graceful-shutdown state to
   indicate impending maintenance activity on the link.  This
   information can be used by the network devices to re-route the
   traffic effectively.

   This document describes the protocol extensions to disseminate
   graceful-link-shutdown information in OSPFv2 and OSPFv3.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-link-overload/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-link-overload-14
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-link-overload-14

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-link-overload-14


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: "Ketan Talaulikar (ketant)" <ketant@cisco.com>
To: Shraddha Hegde <shraddha@juniper.net>, Alvaro Retana <aretana.ietf@gmail.com>, The IESG <iesg@ietf.org>
CC: "ospf@ietf.org" <ospf@ietf.org>, "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>
Thread-Topic: Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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Subject: Re: [OSPF] Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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Hi Shraddha,

A few comments and observations in the ver 14 and apologies for not providi=
ng some of them earlier, but I had a closer review after looking at Alvaro'=
s comments and many improvements have happened recently.

Related to BGP-LS TLV:
For sec 4.5 - please mention the type here since the IANA section would get=
 taken off by RFC editor. While you do refer to RFC7752 sec 3.1 for the TLV=
 - I think it would be more reader friendly to describe the TLV and the cod=
e point in this section inline like the OSPF TLVs.

For sec 10, the BGP-LS registry being referred to is wrong and it should be=
 " BGP-LS Node Descriptor, Link Descriptor, Prefix Descriptor, and Attribut=
e TLVs" and the suggested codepoint is already taken so I would suggest to =
request for 1121. I believe this was pointed out during the early allocatio=
n call but seems like it got missed out so could you please correct/update?

https://www.iana.org/assignments/bgp-ls-parameters/bgp-ls-parameters.xhtml=
=20

Suggest making the section describing Maximum TE Metric before the current =
Sec 5 - Elements of procedure so the flow is better for the reader.

Sec 5.1=20

Instead of using SHOULD for TE metric, it would be better to qualify as " W=
hen TE is enabled, the TE metric of the link MUST be set to MAX-TE-METRIC (=
0xfffffffe) and the node MUST re-originate the corresponding TE Link Opaque=
 LSAs."

s/ MAX-TE-METRIC (0xfffffffe).//

s/ The TE metric SHOULD be set / The TE metric of the link SHOULD be set

s/ link and set the metric to MaxLinkMetric / link and set its metric to Ma=
xLinkMetric

s/ The TE metric SHOULD be set to MAX-TE-METRIC (0xfffffffe) and the TE opa=
que LSA for the link SHOULD be re-originated with new value./ Similarly, wh=
en TE is enabled, the remote node MUST set the TE metric for the link to MA=
X-TE-METRIC (0xfffffffe) and MUST re-originate the TE Link Opaque LSA for t=
he link with new value.

A couple of sentences describing the different LSAs that come into play for=
 OSPFv3 would be helpful in this section as well. Just as done in sec 3. Th=
e thing is that the OSPFv3 LSAs and especially it's equivalent TE LSAs are =
different. In fact RFC5329 is not being referred to as NORMATIVE and so doe=
s that imply we don't want to do similar action with TE metric in case of O=
SPFv3?. So it would be good to specify or clarify that part. Perhaps in gen=
eral at start of sec 5 so the text in the rest of sub-sections are link-typ=
e specifics and generic to OSPF without naming any LSAs there?

Sec 5.4 Unnumbered interfaces
IMHO this text is very similar to Sec 4.7 which talks about how to identify=
 parallel links. Perhaps sec 5.4 should become Sec 4.8 since what is does i=
s explain how the correlation of links is done for unnumbered links. Altern=
ately, this explanation can be put under Sec 4.3 where the Local/Remote ID =
TLV is specified since this mechanism is going to be common for other use-c=
ase of this general purpose TLV.

Thanks,
Ketan

-----Original Message-----
From: OSPF [mailto:ospf-bounces@ietf.org] On Behalf Of Shraddha Hegde
Sent: 25 January 2018 11:01
To: Alvaro Retana <aretana.ietf@gmail.com>; The IESG <iesg@ietf.org>
Cc: ospf@ietf.org; draft-ietf-ospf-link-overload@ietf.org; ospf-chairs@ietf=
.org
Subject: Re: [OSPF] Alvaro Retana's No Objection on draft-ietf-ospf-link-ov=
erload-13: (with COMMENT)

Alvaro,

Thanks for the review and comments.
Pls see inline..

Rgds
Shraddha

-----Original Message-----
From: Alvaro Retana [mailto:aretana.ietf@gmail.com]
Sent: Wednesday, January 24, 2018 11:27 PM
To: The IESG <iesg@ietf.org>
Cc: draft-ietf-ospf-link-overload@ietf.org; Acee Lindem <acee@cisco.com>; o=
spf-chairs@ietf.org; ospf@ietf.org
Subject: Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: =
(with COMMENT)

Alvaro Retana has entered the following ballot position for
draft-ietf-ospf-link-overload-13: No Objection

When responding, please keep the subject line intact and reply to all email=
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

I debated about filing my first comment as a DISCUSS [1], but decided again=
st it because it should be very easy to solve.  The rest are non-blocking c=
omments.

(1) The following should be Normative references: rfc2119 and rfc6987 -- th=
is last one because MaxLinkMetric (which is defined there) is extensively u=
sed (as a MUST) throughout the document.
<Shraddha> OK

(2) Section 3. (Flooding Scope) provides information about the flooding sco=
pe, but only references for OSPFv2.  It would be nice if the references for=
 OSPFv3 were included there as well.
<Shraddha> OK

(3) Section 4.5. mentions that a "new TLV called Graceful-Link-Shutdown is =
defined" for BGP-LS, but there are no details on the format, etc.  The IANA=
 Considerations section suggests a value, not for a TLV but for an NLRI Typ=
e!
<Shraddha> OK. Refered section 3.1 of RFC 7752 and described the contents o=
f the TLV IANA section seems ok to me. Could you be more specific what need=
s to change?


   BGP-LS Link NLRI Registry [RFC7752]   >>>>>>>Registry

   i)Graceful-Link-Shutdown TLV - Suggested 1101 >>>>>>>TLV type



(4) Section 5: "The node that has the link to be taken out of service SHOUL=
D advertise the Graceful-Link-Shutdown sub-TLV..."  When would the node not=
 advertise the sub-TLV?  IOW, why is "MUST" not used?
<Shraddha> Thanks for pointing out. Changed to MUST.

(5) In 5.1: "MAX-TE-METRIC is a constant defined by this draft and set to 0=
xfffffffe."  Assuming that the intent is to define a new architectural cons=
tant... I would rather see this constant defined separately (in it's own se=
ction/sub-section with a formal definition) instead of "in passing" while d=
escribing how to use it (a la MaxLinkMetric in rfc6987).
<Shraddha> OK

(6) 5.1 says that the metrics "MUST be set to MaxLinkMetric...and SHOULD be=
 set to MAX-TE-METRIC".  Why is there a difference?
<Shraddha> TE is an optional feature so MAX-TE-METRIC needs to be set only =
when TE is enabled on the node.

(7) s/MAX_METRIC/MaxLinkMetric
<Shraddha> ok.

[1] https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.ietf.org_ies=
g_statement_discuss-2Dcriteria.html&d=3DDwICaQ&c=3DHAkYuh63rsuhr6Scbfh0UjBX=
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tvig0Pod2iYz1kE1G9Yj72-TdzzWuw-Wi17D6TfU&s=3D8uPkIAPxrIiuVMLudgaSbVjvc-3iZN=
kLaXrmc6GJpZM&e=3D


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To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Acee Lindem (acee)" <acee@cisco.com>, Alia Atlas <akatlas@gmail.com>
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From: Stewart Bryant <stewart.bryant@gmail.com>
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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Les

I agree wrt L2

Isn't another focus collecting the information to feed into an SDN 
controller via BGP-LS? That is really network layer  state collection 
rather than routing in the traditional sense.

- Stewart


On 24/01/2018 23:09, Les Ginsberg (ginsberg) wrote:
>
> It occurred to me after sending this that perhaps a better statement 
> as regards IS-IS would be:
>
> “LSR’s work is focused on IP/IPv6 and Layer 2 routing…”
>
> though admittedly there isn’t much going on as regards Layer2 and 
> IS-IS at the moment.
>
>    Les
>
> *From:*Isis-wg [mailto:isis-wg-bounces@ietf.org] *On Behalf Of *Les 
> Ginsberg (ginsberg)
> *Sent:* Wednesday, January 24, 2018 2:33 PM
> *To:* Stewart Bryant <stewart.bryant@gmail.com>; Acee Lindem (acee) 
> <acee@cisco.com>; Alia Atlas <akatlas@gmail.com>
> *Cc:* OSPF List <ospf@ietf.org>; isis-wg@ietf.org
> *Subject:* Re: [Isis-wg] Link-State Routing WG charter
>
> Since a charter only provides a general definition of the work that 
> falls within the purview of the WG it requires some adjunct to keep 
> track of the current priorities.
>
> That could be the list of milestones (which OSPF has regularly 
> maintained – but IS-IS has not) – or it could simply be the list of 
> active WG documents.
>
> I just don’t see that we should expect the charter to express “work in 
> progress” now – or in the future.
>
> Alia – do you think the statement about IS-IS:
>
> “LSR’s work is focused on IP routing…”
>
> Could be improved by saying
>
> “LSR’s work is focused on IP/IPv6 routing…”
>
> ???
>
>    Les
>
> *From:*Isis-wg [mailto:isis-wg-bounces@ietf.org] *On Behalf Of 
> *Stewart Bryant
> *Sent:* Wednesday, January 24, 2018 10:01 AM
> *To:* Acee Lindem (acee) <acee@cisco.com <mailto:acee@cisco.com>>; 
> Alia Atlas <akatlas@gmail.com <mailto:akatlas@gmail.com>>
> *Cc:* OSPF List <ospf@ietf.org <mailto:ospf@ietf.org>>; 
> isis-wg@ietf.org <mailto:isis-wg@ietf.org>
> *Subject:* Re: [Isis-wg] Link-State Routing WG charter
>
> Yes that fixes that.
>
> How about:
>
> s/The following topics are expected to be an initial focus:/ In 
> addition to ongoing maintenance, the following topics are expected to 
> be an initial focus:/
>
> I am just concerned that we need not to loose focus on work in progress.
>
> - Stewart
>
> On 24/01/2018 17:54, Acee Lindem (acee) wrote:
>
>     How about:
>
>     LSR will coordinate with CCAMP and BIER on their extensions to the
>     LSR IGPs as
>
>     applicable to LSV protocol operation and scale.
>
>     Thanks,
>
>     Acee
>
>     *From: *Isis-wg
>     <isis-wg-bounces@ietf.org><mailto:isis-wg-bounces@ietf.org>on
>     behalf of Alia Atlas <akatlas@gmail.com><mailto:akatlas@gmail.com>
>     *Date: *Wednesday, January 24, 2018 at 12:42 PM
>     *To: *Stewart Bryant
>     <stewart.bryant@gmail.com><mailto:stewart.bryant@gmail.com>
>     *Cc: *OSPF WG List <ospf@ietf.org><mailto:ospf@ietf.org>,
>     "isis-wg@ietf.org"<mailto:isis-wg@ietf.org><isis-wg@ietf.org><mailto:isis-wg@ietf.org>
>     *Subject: *Re: [Isis-wg] Link-State Routing WG charter
>
>     Hi Stewart,
>
>     Thanks for the quick feedback.  Feel free to provide suggestions
>     for text changes if you have them.
>
>     You've certainly written enough charters :-)
>
>     Regards,
>
>     Alia
>
>     On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant
>     <stewart.bryant@gmail.com<mailto:stewart.bryant@gmail.com>> wrote:
>
>         Alia,
>
>         I think that this merger is long overdue, and hopefully it
>         will help new features to be written in an aligned way.
>
>         I think the remit to perform general maintenance should
>         slightly clarified since the way the charter is written they
>         look like they are at a lower priority than the enumerated list.
>
>         I would have thought that "LSR can coordinate with CCAMP and
>         BIER on their extensions " should have been more directive.
>
>         - Stewart
>
>         On 24/01/2018 17:18, Alia Atlas wrote:
>
>             Here is the proposed charter for the LSR working group
>
>             that will be created from the SPF and ISIS working groups.
>
>             This is scheduled for internal review for the IESG
>             telechat on February 8.
>
>             https://datatracker.ietf.org/doc/charter-ietf-lsr/
>
>             The Link-State Routing (LSR) Working Group is chartered to
>             document current protocol implementation practices and
>             improvements, protocol usage scenarios, maintenance and
>             extensions of link-state routing interior gateway
>             protocols (IGPs) with a focus on IS-IS, OSPFv2, and
>             OSPFv3.  The LSR Working Group is formed by merging the
>             isis and ospf WGs and will take on all their existing
>             adopted work at the time of chartering.
>
>             IS-IS is an IGP specified and standardized by ISO through
>             ISO 10589:2002 and additional RFC standards with
>             extensions to support IP that has been deployed in the
>             Internet for decades.  For the IS-IS protocol, LSR’s work
>             is focused on IP routing, currently based on the agreement
>             in RFC 3563 with ISO/JTC1/SC6. The LSR WG will interact
>             with other standards bodies that have responsible for
>             standardizing IS-IS.
>
>             OSPFv2 [RFC 2328 and extensions], is an IGP that has been
>             deployed in the Internet for decades. OSPFv3 [RFC5340 and
>             extensions] provides OSPF for IPv6 and IPv4 [RFC5838]
>             which can be delivered over IPv6 or IPv4 [RFC 7949].
>
>             The LSR Working Group will generally manage its specific
>             work items by milestones agreed with the responsible Area
>             Director.
>
>             The following topics are expected to be an initial focus:
>
>             1) Improving OSPF support for IPv6 and extensions using
>             OSPFv3 LSA Extendibility.
>
>             2) Extensions needed for Segment Routing and associated
>             architectural changes
>
>             3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions
>
>             4) Extensions for source-destination routing
>             [draft-ietf-rtgwg-dst-src-routing]
>
>             5) Potentially, extensions to better support specific
>             network topologies such as
>
>             ones commonly used in data centers.
>
>             The Link-State Routing (LSR) Working Group will coordinate
>             with other working groups, such as RTGWG, SPRING, MPLS,
>             TEAS, V6OPS, and 6MAN, to understand the need for
>             extensions and to confirm that the planned work meets the
>             needs.  LSR can coordinate with CCAMP and BIER on their
>             extensions to the LSR IGPs as useful.  LSR may coordinate
>             with other WGs as needed.
>
>             Regards,
>
>             Alia
>
>
>
>             _______________________________________________
>
>             Isis-wg mailing list
>
>             Isis-wg@ietf.org<mailto:Isis-wg@ietf.org>
>
>             https://www.ietf.org/mailman/listinfo/isis-wg
>


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    <p>Les</p>
    <p>I agree wrt L2<br>
    </p>
    <p>Isn't another focus collecting the information to feed into an
      SDN controller via BGP-LS? That is really network layer  state
      collection rather than routing in the traditional sense.<br>
    </p>
    <p>- Stewart<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 24/01/2018 23:09, Les Ginsberg
      (ginsberg) wrote:<br>
    </div>
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        <p class="MsoNormal"><span style="color:#1F497D">It occurred to
            me after sending this that perhaps a better statement as
            regards IS-IS would be:<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">“LSR’s work is
            focused on IP/IPv6 and Layer 2 routing…”<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">though
            admittedly there isn’t much going on as regards Layer2 and
            IS-IS at the moment.
            <o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">   Les<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <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"> Isis-wg
                  [<a class="moz-txt-link-freetext" href="mailto:isis-wg-bounces@ietf.org">mailto:isis-wg-bounces@ietf.org</a>]
                  <b>On Behalf Of </b>Les Ginsberg (ginsberg)<br>
                  <b>Sent:</b> Wednesday, January 24, 2018 2:33 PM<br>
                  <b>To:</b> Stewart Bryant
                  <a class="moz-txt-link-rfc2396E" href="mailto:stewart.bryant@gmail.com">&lt;stewart.bryant@gmail.com&gt;</a>; Acee Lindem (acee)
                  <a class="moz-txt-link-rfc2396E" href="mailto:acee@cisco.com">&lt;acee@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>Cc:</b> OSPF List <a class="moz-txt-link-rfc2396E" href="mailto:ospf@ietf.org">&lt;ospf@ietf.org&gt;</a>;
                  <a class="moz-txt-link-abbreviated" href="mailto:isis-wg@ietf.org">isis-wg@ietf.org</a><br>
                  <b>Subject:</b> Re: [Isis-wg] Link-State Routing WG
                  charter<o:p></o:p></span></p>
            </div>
          </div>
          <p class="MsoNormal"><o:p> </o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D">Since a
              charter only provides a general definition of the work
              that falls within the purview of the WG it requires some
              adjunct to keep track of the current priorities.<o:p></o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D">That could be
              the list of milestones (which OSPF has regularly
              maintained – but IS-IS has not) – or it could simply be
              the list of active WG documents.<o:p></o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D">I just don’t
              see that we should expect the charter to express “work in
              progress” now – or in the future.<o:p></o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D">Alia – do you
              think the statement about IS-IS:<o:p></o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D">“LSR’s work
              is focused on IP routing…”<o:p></o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D">Could be
              improved by saying<o:p></o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D">“LSR’s work
              is focused on IP/IPv6 routing…”<o:p></o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D">???<o:p></o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D">   Les<o:p></o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
          <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
          <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"> Isis-wg [<a
                      href="mailto:isis-wg-bounces@ietf.org"
                      moz-do-not-send="true">mailto:isis-wg-bounces@ietf.org</a>]
                    <b>On Behalf Of </b>Stewart Bryant<br>
                    <b>Sent:</b> Wednesday, January 24, 2018 10:01 AM<br>
                    <b>To:</b> Acee Lindem (acee) &lt;<a
                      href="mailto:acee@cisco.com"
                      moz-do-not-send="true">acee@cisco.com</a>&gt;;
                    Alia Atlas &lt;<a href="mailto:akatlas@gmail.com"
                      moz-do-not-send="true">akatlas@gmail.com</a>&gt;<br>
                    <b>Cc:</b> OSPF List &lt;<a
                      href="mailto:ospf@ietf.org" moz-do-not-send="true">ospf@ietf.org</a>&gt;;
                    <a href="mailto:isis-wg@ietf.org"
                      moz-do-not-send="true">
                      isis-wg@ietf.org</a><br>
                    <b>Subject:</b> Re: [Isis-wg] Link-State Routing WG
                    charter<o:p></o:p></span></p>
              </div>
            </div>
            <p class="MsoNormal"><o:p> </o:p></p>
            <p>Yes that fixes that.<o:p></o:p></p>
            <p>How about:<o:p></o:p></p>
            <p>s/<a name="_MailOriginalBody" moz-do-not-send="true">The
                following topics are expected to be an initial focus:/
                In addition to ongoing maintenance, the following topics
                are expected to be an initial focus:/<o:p></o:p></a></p>
            <p><span style="mso-bookmark:_MailOriginalBody">I am just
                concerned that we need not to loose focus on work in
                progress.<o:p></o:p></span></p>
            <p><span style="mso-bookmark:_MailOriginalBody">- Stewart<o:p></o:p></span></p>
            <p class="MsoNormal"><span
                style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
            <div>
              <p class="MsoNormal"><span
                  style="mso-bookmark:_MailOriginalBody">On 24/01/2018
                  17:54, Acee Lindem (acee) wrote:<o:p></o:p></span></p>
            </div>
            <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
              <p class="MsoNormal"><span
                  style="mso-bookmark:_MailOriginalBody">How about:<o:p></o:p></span></p>
              <p class="MsoNormal"><span
                  style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
              <p class="MsoNormal"><span
                  style="mso-bookmark:_MailOriginalBody"><span
                    style="font-size:10.0pt;font-family:&quot;Courier
                    New&quot;">LSR will coordinate with CCAMP and BIER
                    on their extensions to the LSR IGPs as</span><o:p></o:p></span></p>
              <p class="MsoNormal"><span
                  style="mso-bookmark:_MailOriginalBody"><span
                    style="font-size:10.0pt;font-family:&quot;Courier
                    New&quot;">applicable to LSV protocol operation and
                    scale. </span><o:p></o:p></span></p>
              <p class="MsoNormal"><span
                  style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
              <p class="MsoNormal"><span
                  style="mso-bookmark:_MailOriginalBody">Thanks,<o:p></o:p></span></p>
              <p class="MsoNormal"><span
                  style="mso-bookmark:_MailOriginalBody">Acee <o:p></o:p></span></p>
              <p class="MsoNormal"><span
                  style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
              <div style="border:none;border-top:solid #B5C4DF
                1.0pt;padding:3.0pt 0in 0in 0in">
                <p class="MsoNormal" style="margin-left:.5in"><span
                    style="mso-bookmark:_MailOriginalBody"><b><span
                        style="font-size:12.0pt">From:
                      </span></b></span><span
                    style="mso-bookmark:_MailOriginalBody"><span
                      style="font-size:12.0pt">Isis-wg
                    </span></span><a
                    href="mailto:isis-wg-bounces@ietf.org"
                    moz-do-not-send="true"><span
                      style="mso-bookmark:_MailOriginalBody"><span
                        style="font-size:12.0pt">&lt;isis-wg-bounces@ietf.org&gt;</span></span><span
                      style="mso-bookmark:_MailOriginalBody"></span></a><span
                    style="mso-bookmark:_MailOriginalBody"><span
                      style="font-size:12.0pt"> on behalf of Alia Atlas
                    </span></span><a href="mailto:akatlas@gmail.com"
                    moz-do-not-send="true"><span
                      style="mso-bookmark:_MailOriginalBody"><span
                        style="font-size:12.0pt">&lt;akatlas@gmail.com&gt;</span></span><span
                      style="mso-bookmark:_MailOriginalBody"></span></a><span
                    style="mso-bookmark:_MailOriginalBody"><span
                      style="font-size:12.0pt"><br>
                      <b>Date: </b>Wednesday, January 24, 2018 at 12:42
                      PM<br>
                      <b>To: </b>Stewart Bryant </span></span><a
                    href="mailto:stewart.bryant@gmail.com"
                    moz-do-not-send="true"><span
                      style="mso-bookmark:_MailOriginalBody"><span
                        style="font-size:12.0pt">&lt;stewart.bryant@gmail.com&gt;</span></span><span
                      style="mso-bookmark:_MailOriginalBody"></span></a><span
                    style="mso-bookmark:_MailOriginalBody"><span
                      style="font-size:12.0pt"><br>
                      <b>Cc: </b>OSPF WG List </span></span><a
                    href="mailto:ospf@ietf.org" moz-do-not-send="true"><span
                      style="mso-bookmark:_MailOriginalBody"><span
                        style="font-size:12.0pt">&lt;ospf@ietf.org&gt;</span></span><span
                      style="mso-bookmark:_MailOriginalBody"></span></a><span
                    style="mso-bookmark:_MailOriginalBody"><span
                      style="font-size:12.0pt">,
                    </span></span><a href="mailto:isis-wg@ietf.org"
                    moz-do-not-send="true"><span
                      style="mso-bookmark:_MailOriginalBody"><span
                        style="font-size:12.0pt">"isis-wg@ietf.org"</span></span><span
                      style="mso-bookmark:_MailOriginalBody"></span></a><span
                    style="mso-bookmark:_MailOriginalBody"><span
                      style="font-size:12.0pt">
                    </span></span><a href="mailto:isis-wg@ietf.org"
                    moz-do-not-send="true"><span
                      style="mso-bookmark:_MailOriginalBody"><span
                        style="font-size:12.0pt">&lt;isis-wg@ietf.org&gt;</span></span><span
                      style="mso-bookmark:_MailOriginalBody"></span></a><span
                    style="mso-bookmark:_MailOriginalBody"><span
                      style="font-size:12.0pt"><br>
                      <b>Subject: </b>Re: [Isis-wg] Link-State Routing
                      WG charter</span><o:p></o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal" style="margin-left:.5in"><span
                    style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal" style="margin-left:.5in"><span
                    style="mso-bookmark:_MailOriginalBody">Hi Stewart,
                    <o:p></o:p></span></p>
                <div>
                  <p class="MsoNormal" style="margin-left:.5in"><span
                      style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                </div>
                <div>
                  <p class="MsoNormal" style="margin-left:.5in"><span
                      style="mso-bookmark:_MailOriginalBody">Thanks for
                      the quick feedback.  Feel free to provide
                      suggestions for text changes if you have them.<o:p></o:p></span></p>
                </div>
                <div>
                  <p class="MsoNormal" style="margin-left:.5in"><span
                      style="mso-bookmark:_MailOriginalBody">You've
                      certainly written enough charters :-)<o:p></o:p></span></p>
                </div>
                <div>
                  <p class="MsoNormal" style="margin-left:.5in"><span
                      style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                </div>
                <div>
                  <p class="MsoNormal" style="margin-left:.5in"><span
                      style="mso-bookmark:_MailOriginalBody">Regards,<o:p></o:p></span></p>
                </div>
                <div>
                  <p class="MsoNormal" style="margin-left:.5in"><span
                      style="mso-bookmark:_MailOriginalBody">Alia<o:p></o:p></span></p>
                </div>
              </div>
              <div>
                <p class="MsoNormal" style="margin-left:.5in"><span
                    style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                <div>
                  <p class="MsoNormal" style="margin-left:.5in"><span
                      style="mso-bookmark:_MailOriginalBody">On Wed, Jan
                      24, 2018 at 12:32 PM, Stewart Bryant &lt;</span><a
                      href="mailto:stewart.bryant@gmail.com"
                      target="_blank" moz-do-not-send="true"><span
                        style="mso-bookmark:_MailOriginalBody">stewart.bryant@gmail.com</span><span
                        style="mso-bookmark:_MailOriginalBody"></span></a><span
                      style="mso-bookmark:_MailOriginalBody">&gt; wrote:<o:p></o:p></span></p>
                  <blockquote style="border:none;border-left:solid
                    #CCCCCC 1.0pt;padding:0in 0in 0in
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
                    <div>
                      <p style="margin-left:.5in"><span
                          style="mso-bookmark:_MailOriginalBody">Alia,<o:p></o:p></span></p>
                      <p class="MsoNormal" style="margin-left:.5in"><span
                          style="mso-bookmark:_MailOriginalBody">I think
                          that this merger is long overdue, and
                          hopefully it will help new features to be
                          written in an aligned way.<br>
                          <br>
                          I think the remit to perform general
                          maintenance should slightly clarified since
                          the way the charter is written they look like
                          they are at a lower priority than the
                          enumerated list.<br>
                          <br>
                          I would have thought that "LSR can coordinate
                          with CCAMP and BIER on their extensions "
                          should have been more directive.
                          <br>
                          <br>
                          - Stewart <o:p></o:p></span></p>
                      <div>
                        <div>
                          <p class="MsoNormal"
style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                          <div>
                            <p class="MsoNormal"
                              style="margin-left:.5in"><span
                                style="mso-bookmark:_MailOriginalBody">On
                                24/01/2018 17:18, Alia Atlas wrote:<o:p></o:p></span></p>
                          </div>
                        </div>
                      </div>
                      <blockquote
                        style="margin-top:5.0pt;margin-bottom:5.0pt">
                        <div>
                          <div>
                            <div>
                              <p class="MsoNormal"
                                style="margin-left:.5in"><span
                                  style="mso-bookmark:_MailOriginalBody">Here
                                  is the proposed charter for the LSR
                                  working group
                                  <o:p></o:p></span></p>
                              <div>
                                <p class="MsoNormal"
                                  style="margin-left:.5in"><span
                                    style="mso-bookmark:_MailOriginalBody">that
                                    will be created from the SPF and
                                    ISIS working groups.<o:p></o:p></span></p>
                              </div>
                              <div>
                                <p class="MsoNormal"
                                  style="margin-left:.5in"><span
                                    style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                              </div>
                              <div>
                                <p class="MsoNormal"
                                  style="margin-left:.5in"><span
                                    style="mso-bookmark:_MailOriginalBody">This
                                    is scheduled for internal review for
                                    the IESG telechat on February 8.<o:p></o:p></span></p>
                              </div>
                              <div>
                                <p class="MsoNormal"
                                  style="margin-left:.5in"><span
                                    style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                              </div>
                              <div>
                                <p class="MsoNormal"
                                  style="margin-left:.5in"><span
                                    style="mso-bookmark:_MailOriginalBody"></span><a
href="https://datatracker.ietf.org/doc/charter-ietf-lsr/"
                                    target="_blank"
                                    moz-do-not-send="true"><span
                                      style="mso-bookmark:_MailOriginalBody">https://datatracker.ietf.org/doc/charter-ietf-lsr/</span><span
style="mso-bookmark:_MailOriginalBody"></span></a><span
                                    style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></p>
                              </div>
                              <div>
                                <p class="MsoNormal"
                                  style="margin-left:.5in"><span
                                    style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                              </div>
                              <div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">The
                                      Link-State Routing (LSR) Working
                                      Group is chartered to document
                                      current protocol implementation
                                      practices and improvements,
                                      protocol usage scenarios,
                                      maintenance and extensions of
                                      link-state routing interior
                                      gateway protocols (IGPs) with a
                                      focus on IS-IS, OSPFv2, and
                                      OSPFv3.  The LSR Working Group is
                                      formed by merging the isis and
                                      ospf WGs and will take on all
                                      their existing adopted work at the
                                      time of chartering.<o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">IS-IS
                                      is an IGP specified and
                                      standardized by ISO through ISO
                                      10589:2002 and additional RFC
                                      standards with extensions to
                                      support IP that has been deployed
                                      in the Internet for decades.  For
                                      the IS-IS protocol, LSR’s work is
                                      focused on IP routing, currently
                                      based on the agreement in RFC 3563
                                      with ISO/JTC1/SC6. The LSR WG will
                                      interact with other standards
                                      bodies that have responsible for
                                      standardizing IS-IS.<o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">OSPFv2
                                      [RFC 2328 and extensions], is an
                                      IGP that has been deployed in the
                                      Internet for decades. OSPFv3
                                      [RFC5340 and extensions] provides
                                      OSPF for IPv6 and IPv4 [RFC5838]
                                      which can be delivered over IPv6
                                      or IPv4 [RFC 7949].<o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">The
                                      LSR Working Group will generally
                                      manage its specific work items by
                                      milestones agreed with the
                                      responsible Area Director.<o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">The
                                      following topics are expected to
                                      be an initial focus:<o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">1)
                                      Improving OSPF support for IPv6
                                      and extensions using OSPFv3 LSA
                                      Extendibility.<o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">2)
                                      Extensions needed for Segment
                                      Routing and associated
                                      architectural changes<o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">3)
                                      YANG models for IS-IS, OSPFv2, and
                                      OSPFv3 and extensions<o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">4)
                                      Extensions for source-destination
                                      routing
                                      [draft-ietf-rtgwg-dst-src-routing]<o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">5)
                                      Potentially, extensions to better
                                      support specific network
                                      topologies such as <o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">ones
                                      commonly used in data centers.<o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                </div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">The
                                      Link-State Routing (LSR) Working
                                      Group will coordinate with other
                                      working groups, such as RTGWG,
                                      SPRING, MPLS, TEAS, V6OPS, and
                                      6MAN, to understand the need for
                                      extensions and to confirm that the
                                      planned work meets the needs.  LSR
                                      can coordinate with CCAMP and BIER
                                      on their extensions to the LSR
                                      IGPs as useful.  LSR may
                                      coordinate with other WGs as
                                      needed.<o:p></o:p></span></p>
                                </div>
                              </div>
                              <div>
                                <p class="MsoNormal"
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                        <pre style="margin-left:.5in"><span style="mso-bookmark:_MailOriginalBody"></span><a href="mailto:Isis-wg@ietf.org" target="_blank" moz-do-not-send="true"><span style="mso-bookmark:_MailOriginalBody">Isis-wg@ietf.org</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
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To: Jeff Tantsura <jefftant.ietf@gmail.com>, Alia Atlas <akatlas@gmail.com>, isis-wg@ietf.org, OSPF List <ospf@ietf.org>
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Subject: Re: [OSPF] [Isis-wg] early proposed charter for the Link-State Routing WG
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+1

S


On 24/01/2018 23:27, Jeff Tantsura wrote:
>
> Hi Alia,
>
> +1 on keeping FRR work in RTGWG ;-)
>
> Cheers,
>
> Jeff
>
> *From: *rtgwg <rtgwg-bounces@ietf.org> on behalf of Alia Atlas 
> <akatlas@gmail.com>
> *Date: *Tuesday, January 23, 2018 at 09:22
> *To: *<isis-wg@ietf.org>, OSPF List <ospf@ietf.org>
> *Cc: *RTGWG <rtgwg@ietf.org>
> *Subject: *early proposed charter for the Link-State Routing WG
>
> I am working on the initial charter for the LSR WG, which will combine 
> the
>
> OSPF and ISIS WGs.  At this time, I do not see moving the fast-reroute 
> work
>
> from RTGWG, but I am willing to hear opinions.
>
> In general, feedback on what areas should be the initial focus or 
> specific
>
> concerns on scoping would be useful. My basic plan is for a broad 
> charter focused
>
> on maintenance, usage scenarios, and extensions - much as OSPF and 
> ISIS are
>
> chartered today.
>
> I would like to have this on the February 8 IESG telechat, so rapid 
> feedback and reviews
>
> of the proposed charter when it is sent out would be appreciated.
>
> Thanks,
>
> Alia
>
> _______________________________________________ rtgwg mailing list 
> rtgwg@ietf.org https://www.ietf.org/mailman/listinfo/rtgwg
>
>
>
> _______________________________________________
> Isis-wg mailing list
> Isis-wg@ietf.org
> https://www.ietf.org/mailman/listinfo/isis-wg


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    <p>+1</p>
    <p>S<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 24/01/2018 23:27, Jeff Tantsura
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:B88BAC8E-4642-4E39-82E0-D4FBA90DD76A@gmail.com">
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        <p class="MsoNormal">Hi Alia,<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">+1 on keeping FRR work in RTGWG ;-)<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div>
          <p class="MsoNormal"><span style="color:black">Cheers,<o:p></o:p></span></p>
        </div>
        <p class="MsoNormal"><span style="color:black">Jeff</span><o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div style="border:none;border-top:solid #B5C4DF
          1.0pt;padding:3.0pt 0in 0in 0in">
          <p class="MsoNormal"><b><span
                style="font-size:12.0pt;color:black">From: </span></b><span
              style="font-size:12.0pt;color:black">rtgwg
              <a class="moz-txt-link-rfc2396E" href="mailto:rtgwg-bounces@ietf.org">&lt;rtgwg-bounces@ietf.org&gt;</a> on behalf of Alia Atlas
              <a class="moz-txt-link-rfc2396E" href="mailto:akatlas@gmail.com">&lt;akatlas@gmail.com&gt;</a><br>
              <b>Date: </b>Tuesday, January 23, 2018 at 09:22<br>
              <b>To: </b><a class="moz-txt-link-rfc2396E" href="mailto:isis-wg@ietf.org">&lt;isis-wg@ietf.org&gt;</a>, OSPF List
              <a class="moz-txt-link-rfc2396E" href="mailto:ospf@ietf.org">&lt;ospf@ietf.org&gt;</a><br>
              <b>Cc: </b>RTGWG <a class="moz-txt-link-rfc2396E" href="mailto:rtgwg@ietf.org">&lt;rtgwg@ietf.org&gt;</a><br>
              <b>Subject: </b>early proposed charter for the Link-State
              Routing WG<o:p></o:p></span></p>
        </div>
        <div>
          <p class="MsoNormal"><o:p> </o:p></p>
        </div>
        <div>
          <p class="MsoNormal">I am working on the initial charter for
            the LSR WG, which will combine the <o:p></o:p></p>
          <div>
            <p class="MsoNormal">OSPF and ISIS WGs.  At this time, I do
              not see moving the fast-reroute work<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal">from RTGWG, but I am willing to hear
              opinions.<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal"><o:p> </o:p></p>
          </div>
          <div>
            <p class="MsoNormal">In general, feedback on what areas
              should be the initial focus or specific <o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal">concerns on scoping would be useful. 
              My basic plan is for a broad charter focused<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal">on maintenance, usage scenarios, and
              extensions - much as OSPF and ISIS are<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal">chartered today.<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal"><o:p> </o:p></p>
          </div>
          <div>
            <p class="MsoNormal">I would like to have this on the
              February 8 IESG telechat, so rapid feedback and reviews<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal">of the proposed charter when it is sent
              out would be appreciated.<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal"><o:p> </o:p></p>
          </div>
          <div>
            <p class="MsoNormal">Thanks,<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal">Alia<o:p></o:p></p>
          </div>
        </div>
        <p class="MsoNormal">_______________________________________________
          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> <o:p></o:p></p>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
Isis-wg mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Isis-wg@ietf.org">Isis-wg@ietf.org</a>
<a class="moz-txt-link-freetext" href="https://www.ietf.org/mailman/listinfo/isis-wg">https://www.ietf.org/mailman/listinfo/isis-wg</a>
</pre>
    </blockquote>
    <br>
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From nobody Thu Jan 25 04:53:05 2018
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From: Benoit Claise <bclaise@cisco.com>
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Cc: draft-ietf-ospf-link-overload@ietf.org, Acee Lindem <acee@cisco.com>, ospf-chairs@ietf.org, acee@cisco.com, ospf@ietf.org, tim.chown@jisc.ac.uk
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Subject: [OSPF] Benoit Claise's No Objection on draft-ietf-ospf-link-overload-14: (with COMMENT)
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Benoit Claise has entered the following ballot position for
draft-ietf-ospf-link-overload-14: No Objection

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

As mentioned by Tim, part of the OPS DIR review. It's the authors and
responsible AD to decide whether to act on those comments.

I believe the document is Ready for publication.  I have only three minor
comments below, which the authors may choose to act on.

Overall the document reads reasonably well. Not being overly familiar with the
material, I needed to read it through end-to-end more than once to better
understand its scope and intent. My first comment would be that perhaps the
introduction section could be better written; the abstract seemed clear on the
purpose of the draft, while the introduction felt a little muddled.  Sections
2, 3 and 4, which detail the motivations and extensions, were much clearer.

Secondly, there are some minor typographic errors throughout the document,
generally missing (in)definite articles.  While the RFC Editor would pick these
up, it would be nice for the authors to have a final pass and fix those before
submission.

Thirdly, the document does not give any advice on the timing of using the
extensions - how far in advance is it recommended to use the extensions? - or
on the return to 'normal' state once the maintenance is completed.  So perhaps
consider adding a short section on this, maybe in Section 5.



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To: Stewart Bryant <stewart.bryant@gmail.com>, Alia Atlas <akatlas@gmail.com>
CC: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>, Jonathan Hardwick <Jonathan.Hardwick@metaswitch.com>, "BRUNGARD, DEBORAH A (ATTLABS)" <db3546@att.com>
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From: Julien Meuric <julien.meuric@orange.com>
Organization: Orange
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Date: Thu, 25 Jan 2018 15:19:10 +0100
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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Hi all,

I agree with Stewart: it would be clearer to make explicit that all the
protocol work we have been referring to as "Traffic
Engineering"/"extended metrics"/"topological parameters"/etc. is still
in scope of the LSR WG.

By the way, I think is would be great to also mention the PCE WG when we
tackle the list of expected coordinations, somewhere near MPLS and TEAS...

Thanks,

Julien


Jan. 25, 2018 - stewart.bryant@gmail.com:
>
> Les
>
> I agree wrt L2
>
> Isn't another focus collecting the information to feed into an SDN
> controller via BGP-LS? That is really network layer  state collection
> rather than routing in the traditional sense.
>
> - Stewart
>
>
> On 24/01/2018 23:09, Les Ginsberg (ginsberg) wrote:
>>
>> It occurred to me after sending this that perhaps a better statement
>> as regards IS-IS would be:
>>
>>  
>>
>> “LSR’s work is focused on IP/IPv6 and Layer 2 routing…”
>>
>>  
>>
>> though admittedly there isn’t much going on as regards Layer2 and
>> IS-IS at the moment.
>>
>>  
>>
>>    Les
>>
>>  
>>
>>  
>>
>> *From:*Isis-wg [mailto:isis-wg-bounces@ietf.org] *On Behalf Of *Les
>> Ginsberg (ginsberg)
>> *Sent:* Wednesday, January 24, 2018 2:33 PM
>>
>>  
>>
>> Since a charter only provides a general definition of the work that
>> falls within the purview of the WG it requires some adjunct to keep
>> track of the current priorities.
>>
>> That could be the list of milestones (which OSPF has regularly
>> maintained – but IS-IS has not) – or it could simply be the list of
>> active WG documents.
>>
>> I just don’t see that we should expect the charter to express “work
>> in progress” now – or in the future.
>>
>>  
>>
>> Alia – do you think the statement about IS-IS:
>>
>>  
>>
>> “LSR’s work is focused on IP routing…”
>>
>>  
>>
>> Could be improved by saying
>>
>>  
>>
>> “LSR’s work is focused on IP/IPv6 routing…”
>>
>>  
>>
>> ???
>>
>>  
>>
>>    Les
>>
>>  
>>
>>  
>>
>> *From:*Isis-wg [mailto:isis-wg-bounces@ietf.org] *On Behalf Of
>> *Stewart Bryant
>> *Sent:* Wednesday, January 24, 2018 10:01 AM
>>
>> Yes that fixes that.
>>
>> How about:
>>
>> s/The following topics are expected to be an initial focus:/ In
>> addition to ongoing maintenance, the following topics are expected to
>> be an initial focus:/
>>
>> I am just concerned that we need not to loose focus on work in progress.
>>
>> - Stewart
>>
>>  
>>
>> On 24/01/2018 17:54, Acee Lindem (acee) wrote:
>>
>>     How about:
>>
>>      
>>
>>     LSR will coordinate with CCAMP and BIER on their extensions to
>>     the LSR IGPs as
>>
>>     applicable to LSV protocol operation and scale. 
>>
>>      
>>
>>     Thanks,
>>
>>     Acee
>>
>>      
>>
>>     *From: *Isis-wg
>>     <isis-wg-bounces@ietf.org><mailto:isis-wg-bounces@ietf.org>on
>>     behalf of Alia Atlas <akatlas@gmail.com><mailto:akatlas@gmail.com>
>>     *Date: *Wednesday, January 24, 2018 at 12:42 PM
>>
>>      
>>
>>     Hi Stewart,
>>
>>      
>>
>>     Thanks for the quick feedback.  Feel free to provide suggestions
>>     for text changes if you have them.
>>
>>     You've certainly written enough charters :-)
>>
>>      
>>
>>     Regards,
>>
>>     Alia
>>
>>      
>>
>>     On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant
>>     <stewart.bryant@gmail.com<mailto:stewart.bryant@gmail.com>> wrote:
>>
>>         Alia,
>>
>>         I think that this merger is long overdue, and hopefully it
>>         will help new features to be written in an aligned way.
>>
>>         I think the remit to perform general maintenance should
>>         slightly clarified since the way the charter is written they
>>         look like they are at a lower priority than the enumerated list.
>>
>>         I would have thought that "LSR can coordinate with CCAMP and
>>         BIER on their extensions " should have been more directive.
>>
>>         - Stewart
>>
>>          
>>
>>         On 24/01/2018 17:18, Alia Atlas wrote:
>>
>>             Here is the proposed charter for the LSR working group
>>
>>             that will be created from the SPF and ISIS working groups.
>>
>>              
>>
>>             This is scheduled for internal review for the IESG
>>             telechat on February 8.
>>
>>              
>>
>>             https://datatracker.ietf.org/doc/charter-ietf-lsr/
>>
>>              
>>
>>             The Link-State Routing (LSR) Working Group is chartered
>>             to document current protocol implementation practices and
>>             improvements, protocol usage scenarios, maintenance and
>>             extensions of link-state routing interior gateway
>>             protocols (IGPs) with a focus on IS-IS, OSPFv2, and
>>             OSPFv3.  The LSR Working Group is formed by merging the
>>             isis and ospf WGs and will take on all their existing
>>             adopted work at the time of chartering.
>>
>>              
>>
>>             IS-IS is an IGP specified and standardized by ISO through
>>             ISO 10589:2002 and additional RFC standards with
>>             extensions to support IP that has been deployed in the
>>             Internet for decades.  For the IS-IS protocol, LSR’s work
>>             is focused on IP routing, currently based on the
>>             agreement in RFC 3563 with ISO/JTC1/SC6. The LSR WG will
>>             interact with other standards bodies that have
>>             responsible for standardizing IS-IS.
>>
>>              
>>
>>             OSPFv2 [RFC 2328 and extensions], is an IGP that has been
>>             deployed in the Internet for decades. OSPFv3 [RFC5340 and
>>             extensions] provides OSPF for IPv6 and IPv4 [RFC5838]
>>             which can be delivered over IPv6 or IPv4 [RFC 7949].
>>
>>              
>>
>>             The LSR Working Group will generally manage its specific
>>             work items by milestones agreed with the responsible Area
>>             Director.
>>
>>              
>>
>>             The following topics are expected to be an initial focus:
>>
>>              
>>
>>             1) Improving OSPF support for IPv6 and extensions using
>>             OSPFv3 LSA Extendibility.
>>
>>             2) Extensions needed for Segment Routing and associated
>>             architectural changes
>>
>>             3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions
>>
>>             4) Extensions for source-destination routing
>>             [draft-ietf-rtgwg-dst-src-routing]
>>
>>             5) Potentially, extensions to better support specific
>>             network topologies such as 
>>
>>             ones commonly used in data centers.
>>
>>              
>>
>>             The Link-State Routing (LSR) Working Group will
>>             coordinate with other working groups, such as RTGWG,
>>             SPRING, MPLS, TEAS, V6OPS, and 6MAN, to understand the
>>             need for extensions and to confirm that the planned work
>>             meets the needs.  LSR can coordinate with CCAMP and BIER
>>             on their extensions to the LSR IGPs as useful.  LSR may
>>             coordinate with other WGs as needed.
>>
>>              
>>
>>             Regards,
>>
>>             Alia
>>
>>
>>
>>             _______________________________________________
>>
>>             Isis-wg mailing list
>>
>>             Isis-wg@ietf.org<mailto:Isis-wg@ietf.org>
>>
>>             https://www.ietf.org/mailman/listinfo/isis-wg
>>
>>          
>>
>>      
>>
>>  
>>
>
>
>
> _______________________________________________
> OSPF mailing list
> OSPF@ietf.org
> https://www.ietf.org/mailman/listinfo/ospf


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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Stewart Bryant <stewart.bryant@gmail.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, Alia Atlas <akatlas@gmail.com>
CC: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Thread-Topic: [Isis-wg] Link-State Routing WG charter
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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From: Alia Atlas <akatlas@gmail.com>
Date: Thu, 25 Jan 2018 10:26:25 -0500
Message-ID: <CAG4d1rew3JT-=tUTxgrwYs3AGNtuHKwys4u0noSF1Kgeff4r-A@mail.gmail.com>
To: Deborah Brungard <db3546@att.com>
Cc: The IESG <iesg@ietf.org>, OSPF List <ospf@ietf.org>, draft-ietf-ospf-link-overload@ietf.org,  Acee Lindem <acee@cisco.com>, ospf-chairs@ietf.org,  "TEAS WG (teas@ietf.org)" <teas@ietf.org>
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Subject: Re: [OSPF] Deborah Brungard's Discuss on draft-ietf-ospf-link-overload-13: (with DISCUSS and COMMENT)
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Could a look at the changes in draft-ietf-ospf-link-overload-14 happen?

Also, it would be good to get feedback from TEAS on this document and any
concerns.

Thanks,
Alia

On Tue, Jan 23, 2018 at 12:01 PM, Deborah Brungard <db3546@att.com> wrote:

> Deborah Brungard has entered the following ballot position for
> draft-ietf-ospf-link-overload-13: Discuss
>
> 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-ospf-link-overload/
>
>
>
> ----------------------------------------------------------------------
> DISCUSS:
> ----------------------------------------------------------------------
>
> This document is defining a MAX-TE-METRIC of 0xfffffffe. But RFC5817
> defined
> 0xffffffff to be used for graceful shutdown. I noted an email exchange
> between
> the author and Acee on this where Acee raised the question why RFC5817's
> value
> was not used. Shraddha replied "We can if we have the Working Group
> Consensus".
> There was no further discussion.
>
> This document was not shared with teas which is responsible for TE (or
> ccamp
> which was originally responsible for RFC5817).
>
> Either this value needs to be changed to RFC5817's value or this TE metric
> needs to be removed from this document until agreement with TEAS.
>
>
> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
>
> I found the title of section 7.2 "Controller Based Traffic Engineering
> Deployments" confusing as it only is describing a controller controlling a
> path. It is not "TE" in the IETF sense e.g. TE signaling. It would be much
> less
> confusing if say "Controller Based Deployments" and "satisfying the traffic
> engineering constraints"/s/"satisfying the constraints". Especially as for
> TE,
> procedures already do exist.  I noted in the introduction you did reference
> RFC5817 MPLS Graceful Shutdown on the procedures when doing a graceful
> shutdown
> of a TE link.
>
>
>

--f4030435c2802f712f05639b676d
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<div dir=3D"ltr">Could a look at the changes in=C2=A0draft-ietf-ospf-link-o=
verload-14 happen?<div><br></div><div>Also, it would be good to get feedbac=
k from TEAS on this document and any concerns.</div><div><br></div><div>Tha=
nks,</div><div>Alia</div></div><div class=3D"gmail_extra"><br><div class=3D=
"gmail_quote">On Tue, Jan 23, 2018 at 12:01 PM, Deborah Brungard <span dir=
=3D"ltr">&lt;<a href=3D"mailto:db3546@att.com" target=3D"_blank">db3546@att=
.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"ma=
rgin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Deborah Brunga=
rd has entered the following ballot position for<br>
draft-ietf-ospf-link-overload-<wbr>13: Discuss<br>
<br>
When responding, please keep the subject line intact and reply to all<br>
email addresses included in the To and CC lines. (Feel free to cut this<br>
introductory 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-ospf-link-overload/"=
 rel=3D"noreferrer" target=3D"_blank">https://datatracker.ietf.org/<wbr>doc=
/draft-ietf-ospf-link-<wbr>overload/</a><br>
<br>
<br>
<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
DISCUSS:<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
<br>
This document is defining a MAX-TE-METRIC of 0xfffffffe. But RFC5817 define=
d<br>
0xffffffff to be used for graceful shutdown. I noted an email exchange betw=
een<br>
the author and Acee on this where Acee raised the question why RFC5817&#39;=
s value<br>
was not used. Shraddha replied &quot;We can if we have the Working Group Co=
nsensus&quot;.<br>
There was no further discussion.<br>
<br>
This document was not shared with teas which is responsible for TE (or ccam=
p<br>
which was originally responsible for RFC5817).<br>
<br>
Either this value needs to be changed to RFC5817&#39;s value or this TE met=
ric<br>
needs to be removed from this document until agreement with TEAS.<br>
<br>
<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
COMMENT:<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
<br>
I found the title of section 7.2 &quot;Controller Based Traffic Engineering=
<br>
Deployments&quot; confusing as it only is describing a controller controlli=
ng a<br>
path. It is not &quot;TE&quot; in the IETF sense e.g. TE signaling. It woul=
d be much less<br>
confusing if say &quot;Controller Based Deployments&quot; and &quot;satisfy=
ing the traffic<br>
engineering constraints&quot;/s/&quot;satisfying the constraints&quot;. Esp=
ecially as for TE,<br>
procedures already do exist.=C2=A0 I noted in the introduction you did refe=
rence<br>
RFC5817 MPLS Graceful Shutdown on the procedures when doing a graceful shut=
down<br>
of a TE link.<br>
<br>
<br>
</blockquote></div><br></div>

--f4030435c2802f712f05639b676d--


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From: Alia Atlas <akatlas@gmail.com>
Date: Thu, 25 Jan 2018 10:30:13 -0500
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To: Deborah Brungard <db3546@att.com>
Cc: The IESG <iesg@ietf.org>, OSPF List <ospf@ietf.org>, draft-ietf-ospf-link-overload@ietf.org,  Acee Lindem <acee@cisco.com>, ospf-chairs@ietf.org,  "TEAS WG (teas@ietf.org)" <teas@ietf.org>
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Subject: Re: [OSPF] Deborah Brungard's Discuss on draft-ietf-ospf-link-overload-13: (with DISCUSS and COMMENT)
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More specifically, as Deborah pointed out, in RFC 5817 Section 4.1, it says
"Specifically, the node where graceful shutdown of a link is desired
originates the TE LSA or IS-
   IS-LSP containing a Link TLV for the link under graceful shutdown
   with the Traffic Engineering metric set to 0xffffffff, 0 as
   unreserved bandwidth. "

and draft-ietf-ospf-link-overload-14 conflicts with that by using
0xfffffffe instead.

Regards,
Alia

On Thu, Jan 25, 2018 at 10:26 AM, Alia Atlas <akatlas@gmail.com> wrote:

> Could a look at the changes in draft-ietf-ospf-link-overload-14 happen?
>
> Also, it would be good to get feedback from TEAS on this document and any
> concerns.
>
> Thanks,
> Alia
>
> On Tue, Jan 23, 2018 at 12:01 PM, Deborah Brungard <db3546@att.com> wrote:
>
>> Deborah Brungard has entered the following ballot position for
>> draft-ietf-ospf-link-overload-13: Discuss
>>
>> 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-ospf-link-overload/
>>
>>
>>
>> ----------------------------------------------------------------------
>> DISCUSS:
>> ----------------------------------------------------------------------
>>
>> This document is defining a MAX-TE-METRIC of 0xfffffffe. But RFC5817
>> defined
>> 0xffffffff to be used for graceful shutdown. I noted an email exchange
>> between
>> the author and Acee on this where Acee raised the question why RFC5817's
>> value
>> was not used. Shraddha replied "We can if we have the Working Group
>> Consensus".
>> There was no further discussion.
>>
>> This document was not shared with teas which is responsible for TE (or
>> ccamp
>> which was originally responsible for RFC5817).
>>
>> Either this value needs to be changed to RFC5817's value or this TE metric
>> needs to be removed from this document until agreement with TEAS.
>>
>>
>> ----------------------------------------------------------------------
>> COMMENT:
>> ----------------------------------------------------------------------
>>
>> I found the title of section 7.2 "Controller Based Traffic Engineering
>> Deployments" confusing as it only is describing a controller controlling a
>> path. It is not "TE" in the IETF sense e.g. TE signaling. It would be
>> much less
>> confusing if say "Controller Based Deployments" and "satisfying the
>> traffic
>> engineering constraints"/s/"satisfying the constraints". Especially as
>> for TE,
>> procedures already do exist.  I noted in the introduction you did
>> reference
>> RFC5817 MPLS Graceful Shutdown on the procedures when doing a graceful
>> shutdown
>> of a TE link.
>>
>>
>>
>

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Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr">More specifically, as Deborah pointed out, in RFC 5817 Sec=
tion 4.1, it says<div>&quot;Specifically, the node where=C2=A0graceful shut=
down of a link is desired originates the TE LSA or IS-<br>=C2=A0 =C2=A0IS-L=
SP containing a Link TLV for the link under graceful shutdown<br>=C2=A0 =C2=
=A0with the Traffic Engineering metric set to 0xffffffff, 0 as<br>=C2=A0 =
=C2=A0unreserved bandwidth. &quot;<br></div><div><br></div><div>and draft-i=
etf-ospf-link-overload-14 conflicts with that by using 0xfffffffe instead.<=
/div><div><br></div><div>Regards,</div><div>Alia</div></div><div class=3D"g=
mail_extra"><br><div class=3D"gmail_quote">On Thu, Jan 25, 2018 at 10:26 AM=
, Alia Atlas <span dir=3D"ltr">&lt;<a href=3D"mailto:akatlas@gmail.com" tar=
get=3D"_blank">akatlas@gmail.com</a>&gt;</span> wrote:<br><blockquote class=
=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd=
ing-left:1ex"><div dir=3D"ltr">Could a look at the changes in=C2=A0draft-ie=
tf-ospf-link-<wbr>overload-14 happen?<div><br></div><div>Also, it would be =
good to get feedback from TEAS on this document and any concerns.</div><div=
><br></div><div>Thanks,</div><div>Alia</div></div><div class=3D"HOEnZb"><di=
v class=3D"h5"><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On=
 Tue, Jan 23, 2018 at 12:01 PM, Deborah Brungard <span dir=3D"ltr">&lt;<a h=
ref=3D"mailto:db3546@att.com" target=3D"_blank">db3546@att.com</a>&gt;</spa=
n> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;b=
order-left:1px #ccc solid;padding-left:1ex">Deborah Brungard has entered th=
e following ballot position for<br>
draft-ietf-ospf-link-overload-<wbr>13: Discuss<br>
<br>
When responding, please keep the subject line intact and reply to all<br>
email addresses included in the To and CC lines. (Feel free to cut this<br>
introductory 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/s=
tat<wbr>ement/discuss-criteria.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-ospf-link-overload/"=
 rel=3D"noreferrer" target=3D"_blank">https://datatracker.ietf.org/d<wbr>oc=
/draft-ietf-ospf-link-overlo<wbr>ad/</a><br>
<br>
<br>
<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
DISCUSS:<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
<br>
This document is defining a MAX-TE-METRIC of 0xfffffffe. But RFC5817 define=
d<br>
0xffffffff to be used for graceful shutdown. I noted an email exchange betw=
een<br>
the author and Acee on this where Acee raised the question why RFC5817&#39;=
s value<br>
was not used. Shraddha replied &quot;We can if we have the Working Group Co=
nsensus&quot;.<br>
There was no further discussion.<br>
<br>
This document was not shared with teas which is responsible for TE (or ccam=
p<br>
which was originally responsible for RFC5817).<br>
<br>
Either this value needs to be changed to RFC5817&#39;s value or this TE met=
ric<br>
needs to be removed from this document until agreement with TEAS.<br>
<br>
<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
COMMENT:<br>
------------------------------<wbr>------------------------------<wbr>-----=
-----<br>
<br>
I found the title of section 7.2 &quot;Controller Based Traffic Engineering=
<br>
Deployments&quot; confusing as it only is describing a controller controlli=
ng a<br>
path. It is not &quot;TE&quot; in the IETF sense e.g. TE signaling. It woul=
d be much less<br>
confusing if say &quot;Controller Based Deployments&quot; and &quot;satisfy=
ing the traffic<br>
engineering constraints&quot;/s/&quot;satisfying the constraints&quot;. Esp=
ecially as for TE,<br>
procedures already do exist.=C2=A0 I noted in the introduction you did refe=
rence<br>
RFC5817 MPLS Graceful Shutdown on the procedures when doing a graceful shut=
down<br>
of a TE link.<br>
<br>
<br>
</blockquote></div><br></div>
</div></div></blockquote></div><br></div>

--94eb2c18cc4ed0b1c805639b74d2--


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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Alia Atlas <akatlas@gmail.com>, Deborah Brungard <db3546@att.com>, "Benoit Claise (bclaise)" <bclaise@cisco.com>
CC: The IESG <iesg@ietf.org>, OSPF List <ospf@ietf.org>, "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "TEAS WG (teas@ietf.org)" <teas@ietf.org>
Thread-Topic: Deborah Brungard's Discuss on draft-ietf-ospf-link-overload-13: (with DISCUSS and COMMENT)
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Alia Atlas <akatlas@gmail.com>, Deborah Brungard <db3546@att.com>
CC: The IESG <iesg@ietf.org>, OSPF List <ospf@ietf.org>, "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "TEAS WG (teas@ietf.org)" <teas@ietf.org>
Thread-Topic: Deborah Brungard's Discuss on draft-ietf-ospf-link-overload-13: (with DISCUSS and COMMENT)
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Date: Thu, 25 Jan 2018 15:35:50 +0000
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Subject: Re: [OSPF] Deborah Brungard's Discuss on draft-ietf-ospf-link-overload-13: (with DISCUSS and COMMENT)
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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 Open Shortest Path First IGP WG of the IETF.

        Title           : OSPFv3 LSA Extendibility
        Authors         : Acee Lindem
                          Abhay Roy
                          Dirk Goethals
                          Veerendranatha Reddy Vallem
                          Fred Baker
	Filename        : draft-ietf-ospf-ospfv3-lsa-extend-23.txt
	Pages           : 34
	Date            : 2018-01-25

Abstract:
   OSPFv3 requires functional extension beyond what can readily be done
   with the fixed-format Link State Advertisement (LSA) as described in
   RFC 5340.  Without LSA extension, attributes associated with OSPFv3
   links and advertised IPv6 prefixes must be advertised in separate
   LSAs and correlated to the fixed-format LSAs.  This document extends
   the LSA format by encoding the existing OSPFv3 LSA information in
   Type-Length-Value (TLV) tuples and allowing advertisement of
   additional information with additional TLVs.  Backward compatibility
   mechanisms are also described.

   This document updates RFC 5340, "OSPF for IPv6", and RFC 5838,
   "Support of Address Families in OSPFv3" by providing TLV-based
   encodings for the base OSPFv3 unicast support and OSPFv3 address
   family support.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-ospfv3-lsa-extend/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-ospfv3-lsa-extend-23
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-ospfv3-lsa-extend-23

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-ospfv3-lsa-extend-23


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: Alia Atlas <akatlas@gmail.com>
CC: Alvaro Retana <aretana.ietf@gmail.com>, The IESG <iesg@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>, "draft-ietf-ospf-ospfv3-lsa-extend@ietf.org" <draft-ietf-ospf-ospfv3-lsa-extend@ietf.org>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "Peter Psenak (ppsenak)" <ppsenak@cisco.com>
Thread-Topic: Alvaro Retana's Yes on draft-ietf-ospf-ospfv3-lsa-extend-21: (with COMMENT)
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Date: Thu, 25 Jan 2018 16:21:33 +0000
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Subject: Re: [OSPF] Alvaro Retana's Yes on draft-ietf-ospf-ospfv3-lsa-extend-21: (with COMMENT)
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From: Alvaro Retana <aretana.ietf@gmail.com>
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To: Shraddha Hegde <shraddha@juniper.net>, The IESG <iesg@ietf.org>
Cc: Acee Lindem <acee@cisco.com>, "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>,  "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>
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Subject: Re: [OSPF] Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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On January 25, 2018 at 12:31:16 AM, Shraddha Hegde (shraddha@juniper.net)
wrote:

Shraddha:

Hi!

...

(3) Section 4.5. mentions that a "new TLV called Graceful-Link-Shutdown is
defined" for BGP-LS, but there are no details on the format, etc. The IANA
Considerations section suggests a value, not for a TLV but for an NLRI Type=
!

<Shraddha> OK. Refered section 3.1 of RFC 7752 and described the contents
of the TLV
IANA section seems ok to me. Could you be more specific what needs to
change?


BGP-LS Link NLRI Registry [RFC7752] >>>>>>>Registry

i)Graceful-Link-Shutdown TLV - Suggested 1101 >>>>>>>TLV type

Maybe it=E2=80=99s just me and I just don=E2=80=99t understand=E2=80=A6whic=
h is completely
possible.  There are two points:

(1)

It looks like you=E2=80=99re defining a new Graceful-Link-Shutdown TLV for =
BGP-LS.
This TLV (based on the updated description) has no information in it.  How
does the receiver know which link the sender is referring to?

Note that for the OSPF graceful-link-shutdown sub-TLVs, you are indicating
where to carry them so that there is an obvious indication of which link is
being shutdown.  I would like to see explicitly specified how the receiver
associates this TLV with the appropriate link.  Again, I may be missing the
details.

(2)

The value for the TLV was reserved by IANA in the "BGP-LS NLRI-Types"
registry, not in the "BGP-LS Node Descriptor, Link Descriptor, Prefix
Descriptor, and Attribute TLVs=E2=80=9D register, which is where I would ha=
ve
assumed a modifier to the link would reside.  IOW, according to the
registry you are defining a new NLRI Type, not a new TLV =E2=80=94 and, acc=
ording
to the updated description in the document there=E2=80=99s no information i=
n this
NLRI.


...

(6) 5.1 says that the metrics "MUST be set to MaxLinkMetric...and SHOULD be
set to MAX-TE-METRIC". Why is there a difference?
<Shraddha> TE is an optional feature so MAX-TE-METRIC needs to be set only
when TE is enabled on the node.

I think that the use of TE is obvious at the point of setting the metric =
=E2=80=94
IOW, if TE is not used then it doesn=E2=80=99t mater what this document say=
s.  But
if TE is used, then having a MUST makes it clear that MAX-TE-METRIC is the
metric to be used and that there are no other values or circumstances where
a different value should be considered.


Alvaro.

--001a1134fe58f3087205639c34d6
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<html><head><style>body{font-family:Helvetica,Arial;font-size:13px}</style>=
</head><body style=3D"word-wrap:break-word"><div id=3D"bloop_customfont" st=
yle=3D"color:rgb(0,0,0);margin:0px"><font face=3D"Helvetica">On January 25,=
 2018 at 12:31:16 AM, Shraddha Hegde (<a href=3D"mailto:shraddha@juniper.ne=
t">shraddha@juniper.net</a>) wrote:</font></div><div id=3D"bloop_customfont=
" style=3D"color:rgb(0,0,0);margin:0px"><font face=3D"Helvetica"><br></font=
></div><div id=3D"bloop_customfont" style=3D"margin:0px"><font face=3D"Helv=
etica">Shraddha:</font></div><div id=3D"bloop_customfont" style=3D"margin:0=
px"><font face=3D"Helvetica"><br></font></div><div id=3D"bloop_customfont" =
style=3D"margin:0px"><font face=3D"Helvetica">Hi!</font></div><div id=3D"bl=
oop_customfont" style=3D"margin:0px"><font face=3D"Helvetica"><br></font></=
div><div id=3D"bloop_customfont" style=3D"margin:0px"><font face=3D"Helveti=
ca">...</font></div><div><blockquote type=3D"cite" class=3D"clean_bq" style=
=3D"font-variant-caps:normal;letter-spacing:normal;text-align:start;text-in=
dent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span><di=
v><div><font face=3D"Helvetica">(3) Section 4.5. mentions that a &quot;new =
TLV called Graceful-Link-Shutdown is defined&quot; for BGP-LS, but there ar=
e no details on the format, etc. The IANA Considerations section suggests a=
 value, not for a TLV but for an NLRI Type!<span class=3D"Apple-converted-s=
pace">=C2=A0</span><br>&lt;Shraddha&gt; OK. Refered section 3.1 of RFC 7752=
 and described the contents of the TLV<span class=3D"Apple-converted-space"=
>=C2=A0</span><br>IANA section seems ok to me. Could you be more specific w=
hat needs to change?<span class=3D"Apple-converted-space">=C2=A0</span><br>=
<br><br>BGP-LS Link NLRI Registry [RFC7752] &gt;&gt;&gt;&gt;&gt;&gt;&gt;Reg=
istry<span class=3D"Apple-converted-space">=C2=A0</span><br><br>i)Graceful-=
Link-Shutdown TLV - Suggested 1101 &gt;&gt;&gt;&gt;&gt;&gt;&gt;TLV type<spa=
n class=3D"Apple-converted-space">=C2=A0</span></font></div></div></span></=
blockquote></div><p><font face=3D"Helvetica">Maybe it=E2=80=99s just me and=
 I just don=E2=80=99t understand=E2=80=A6which is completely possible.=C2=
=A0 There are two points:</font></p><p><font face=3D"Helvetica">(1)</font><=
/p><p><font face=3D"Helvetica">It looks like you=E2=80=99re defining a new =
Graceful-Link-Shutdown TLV for BGP-LS.=C2=A0 This TLV (based on the updated=
 description) has no information in it.=C2=A0 How does the receiver know wh=
ich link the sender is referring to?</font></p><p><font face=3D"Helvetica">=
Note that for the OSPF=C2=A0graceful-link-shutdown sub-TLVs, you are indica=
ting where to carry them so that there is an obvious indication of which li=
nk is being shutdown.=C2=A0 I would like to see explicitly specified how th=
e receiver associates this TLV with the appropriate link.=C2=A0 Again, I ma=
y be missing the details.</font></p><p><font face=3D"Helvetica">(2)</font><=
/p><p><font face=3D"Helvetica">The value for the TLV was reserved by IANA i=
n the &quot;BGP-LS NLRI-Types&quot; registry, not in the &quot;BGP-LS Node =
Descriptor, Link Descriptor, Prefix Descriptor, and Attribute TLVs=E2=80=9D=
 register, which is where I would have assumed a modifier to the link would=
 reside.=C2=A0 IOW, according to the registry you are defining a new NLRI T=
ype, not a new TLV =E2=80=94 and, according to the updated description in t=
he document there=E2=80=99s no information in this NLRI.</font></p><p><font=
 face=3D"Helvetica"><br></font></p><p><font face=3D"Helvetica">...</font></=
p><div><div><blockquote type=3D"cite" class=3D"clean_bq" style=3D"font-vari=
ant-caps:normal;letter-spacing:normal;text-align:start;text-indent:0px;text=
-transform:none;white-space:normal;word-spacing:0px"><span><div><div><font =
face=3D"Helvetica">(6) 5.1 says that the metrics &quot;MUST be set to MaxLi=
nkMetric...and SHOULD be set to MAX-TE-METRIC&quot;. Why is there a differe=
nce?<span class=3D"Apple-converted-space">=C2=A0</span><br>&lt;Shraddha&gt;=
 TE is an optional feature so MAX-TE-METRIC needs to be set only when TE is=
 enabled on the node.<span class=3D"Apple-converted-space">=C2=A0</span></f=
ont></div></div></span></blockquote></div><p><font face=3D"Helvetica">I thi=
nk that the use of TE is obvious at the point of setting the metric =E2=80=
=94 IOW, if TE is not used then it doesn=E2=80=99t mater what this document=
 says.=C2=A0 But if TE is used, then having a MUST makes it clear that MAX-=
TE-METRIC is the metric to be used and that there are no other values or ci=
rcumstances where a different value should be considered.</font></p><p><fon=
t face=3D"Helvetica"><br></font></p></div><div id=3D"bloop_sign_15168965218=
93358848" class=3D"bloop_sign"><font face=3D"Helvetica">Alvaro.</font></div=
></body></html>

--001a1134fe58f3087205639c34d6--


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From: "Dearlove, Christopher (UK)" <chris.dearlove@baesystems.com>
To: Alia Atlas <akatlas@gmail.com>, "isis-wg@ietf.org" <isis-wg@ietf.org>, OSPF List <ospf@ietf.org>
Thread-Topic: [OSPF] Link-State Routing WG charter
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Date: Thu, 25 Jan 2018 16:33:47 +0000 (GMT)
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Subject: Re: [OSPF] Link-State Routing WG charter
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--001a113df02e81de6905639e2acb
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Thanks!!

On January 25, 2018 at 11:21:36 AM, Acee Lindem (acee) (acee@cisco.com)
wrote:

I believe the -23 version clarifies the usage of the N-bit in prefix
advertisements.

--001a113df02e81de6905639e2acb
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<html><head><style>body{font-family:Helvetica,Arial;font-size:13px}</style>=
</head><body style=3D"word-wrap:break-word"><div id=3D"bloop_customfont" st=
yle=3D"font-family:Helvetica,Arial;font-size:13px;color:rgba(0,0,0,1.0);mar=
gin:0px;line-height:auto">Thanks!!</div> <br><p class=3D"airmail_on">On Jan=
uary 25, 2018 at 11:21:36 AM, Acee Lindem (acee) (<a href=3D"mailto:acee@ci=
sco.com">acee@cisco.com</a>) wrote:</p> <blockquote type=3D"cite" class=3D"=
clean_bq"><span><div><span style=3D"color:rgb(0,0,0);font-family:Calibri,sa=
ns-serif;font-size:14.666666984558105px;font-style:normal;font-variant-caps=
:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-inde=
nt:0px;text-transform:none;white-space:normal;word-spacing:0px;background-c=
olor:rgb(255,255,255);display:inline!important;float:none">I believe the -2=
3 version clarifies the usage of the N-bit in prefix advertisements.</span>=
</div></span></blockquote> <div id=3D"bloop_sign_1516905843987499008" class=
=3D"bloop_sign"></div></body></html>

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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, Stewart Bryant <stewart.bryant@gmail.com>, Alia Atlas <akatlas@gmail.com>
CC: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Thread-Topic: [Isis-wg] Link-State Routing WG charter
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, "Acee Lindem (acee)" <acee@cisco.com>, Alia Atlas <akatlas@gmail.com>
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From: Stewart Bryant <stewart.bryant@gmail.com>
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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On 25/01/2018 18:59, Les Ginsberg (ginsberg) wrote:
>
> Stewart -
>
> *From:*Stewart Bryant [mailto:stewart.bryant@gmail.com]
> *Sent:* Thursday, January 25, 2018 4:32 AM
> *To:* Les Ginsberg (ginsberg) <ginsberg@cisco.com>; Acee Lindem (acee) 
> <acee@cisco.com>; Alia Atlas <akatlas@gmail.com>
> *Cc:* OSPF List <ospf@ietf.org>; isis-wg@ietf.org
> *Subject:* Re: [Isis-wg] Link-State Routing WG charter
>
> Les
>
> I agree wrt L2
>
> Isn't another focus collecting the information to feed into an SDN 
> controller via BGP-LS? That is really network layer state collection 
> rather than routing in the traditional sense.
>
> */[Les:] Please do not propose such language. This raises the old 
> discussion about using the IGPs as a transport for “just about 
> anything”./*
>
> */We long ago agreed that TE related information was “routing 
> information” – if for no other reason than it was grandfathered in. 
> But this does not alter the IGP’s focus on routing./*
>
> */I know we “stretch” the definition with things like MSD and S-BFD 
> discriminators, but I see these as carefully considered choices – and 
> ones w modest impact./*
>
> */Institutionalizing the IGPs as an “SDN Distribution Protocol” is not 
> something I want in the charter./*
>
> */Les/*
>
> *//*
>

Hi Les,

I don't see it quite like that.

I don't think we flood a lot of the SDN specific information do we? We 
just use the LSP data structures as a convenient encoding, and 
supplement the information we flood with additional information.

If we were flooding it I would share your concern, but I don't see the 
reuse of the syntax which is what BGP-LS does as quite such a problem.

Am I missing something here?

- Stewart


> - Stewart
>
> On 24/01/2018 23:09, Les Ginsberg (ginsberg) wrote:
>
>     It occurred to me after sending this that perhaps a better
>     statement as regards IS-IS would be:
>
>     “LSR’s work is focused on IP/IPv6 and Layer 2 routing…”
>
>     though admittedly there isn’t much going on as regards Layer2 and
>     IS-IS at the moment.
>
>        Les
>
>     *From:*Isis-wg [mailto:isis-wg-bounces@ietf.org] *On Behalf Of
>     *Les Ginsberg (ginsberg)
>     *Sent:* Wednesday, January 24, 2018 2:33 PM
>     *To:* Stewart Bryant <stewart.bryant@gmail.com>
>     <mailto:stewart.bryant@gmail.com>; Acee Lindem (acee)
>     <acee@cisco.com> <mailto:acee@cisco.com>; Alia Atlas
>     <akatlas@gmail.com> <mailto:akatlas@gmail.com>
>     *Cc:* OSPF List <ospf@ietf.org> <mailto:ospf@ietf.org>;
>     isis-wg@ietf.org <mailto:isis-wg@ietf.org>
>     *Subject:* Re: [Isis-wg] Link-State Routing WG charter
>
>     Since a charter only provides a general definition of the work
>     that falls within the purview of the WG it requires some adjunct
>     to keep track of the current priorities.
>
>     That could be the list of milestones (which OSPF has regularly
>     maintained – but IS-IS has not) – or it could simply be the list
>     of active WG documents.
>
>     I just don’t see that we should expect the charter to express
>     “work in progress” now – or in the future.
>
>     Alia – do you think the statement about IS-IS:
>
>     “LSR’s work is focused on IP routing…”
>
>     Could be improved by saying
>
>     “LSR’s work is focused on IP/IPv6 routing…”
>
>     ???
>
>        Les
>
>     *From:*Isis-wg [mailto:isis-wg-bounces@ietf.org] *On Behalf Of
>     *Stewart Bryant
>     *Sent:* Wednesday, January 24, 2018 10:01 AM
>     *To:* Acee Lindem (acee) <acee@cisco.com <mailto:acee@cisco.com>>;
>     Alia Atlas <akatlas@gmail.com <mailto:akatlas@gmail.com>>
>     *Cc:* OSPF List <ospf@ietf.org <mailto:ospf@ietf.org>>;
>     isis-wg@ietf.org <mailto:isis-wg@ietf.org>
>     *Subject:* Re: [Isis-wg] Link-State Routing WG charter
>
>     Yes that fixes that.
>
>     How about:
>
>     s/The following topics are expected to be an initial focus:/ In
>     addition to ongoing maintenance, the following topics are expected
>     to be an initial focus:/
>
>     I am just concerned that we need not to loose focus on work in
>     progress.
>
>     - Stewart
>
>     On 24/01/2018 17:54, Acee Lindem (acee) wrote:
>
>         How about:
>
>         LSR will coordinate with CCAMP and BIER on their extensions to
>         the LSR IGPs as
>
>         applicable to LSV protocol operation and scale.
>
>         Thanks,
>
>         Acee
>
>         *From: *Isis-wg
>         <isis-wg-bounces@ietf.org><mailto:isis-wg-bounces@ietf.org>on
>         behalf of Alia Atlas <akatlas@gmail.com><mailto:akatlas@gmail.com>
>         *Date: *Wednesday, January 24, 2018 at 12:42 PM
>         *To: *Stewart Bryant
>         <stewart.bryant@gmail.com><mailto:stewart.bryant@gmail.com>
>         *Cc: *OSPF WG List <ospf@ietf.org><mailto:ospf@ietf.org>,
>         "isis-wg@ietf.org"<mailto:isis-wg@ietf.org><isis-wg@ietf.org><mailto:isis-wg@ietf.org>
>         *Subject: *Re: [Isis-wg] Link-State Routing WG charter
>
>         Hi Stewart,
>
>         Thanks for the quick feedback.  Feel free to provide
>         suggestions for text changes if you have them.
>
>         You've certainly written enough charters :-)
>
>         Regards,
>
>         Alia
>
>         On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant
>         <stewart.bryant@gmail.com<mailto:stewart.bryant@gmail.com>> wrote:
>
>             Alia,
>
>             I think that this merger is long overdue, and hopefully it
>             will help new features to be written in an aligned way.
>
>             I think the remit to perform general maintenance should
>             slightly clarified since the way the charter is written
>             they look like they are at a lower priority than the
>             enumerated list.
>
>             I would have thought that "LSR can coordinate with CCAMP
>             and BIER on their extensions " should have been more
>             directive.
>
>             - Stewart
>
>             On 24/01/2018 17:18, Alia Atlas wrote:
>
>                 Here is the proposed charter for the LSR working group
>
>                 that will be created from the SPF and ISIS working groups.
>
>                 This is scheduled for internal review for the IESG
>                 telechat on February 8.
>
>                 https://datatracker.ietf.org/doc/charter-ietf-lsr/
>
>                 The Link-State Routing (LSR) Working Group is
>                 chartered to document current protocol implementation
>                 practices and improvements, protocol usage scenarios,
>                 maintenance and extensions of link-state routing
>                 interior gateway protocols (IGPs) with a focus on
>                 IS-IS, OSPFv2, and OSPFv3. The LSR Working Group is
>                 formed by merging the isis and ospf WGs and will take
>                 on all their existing adopted work at the time of
>                 chartering.
>
>                 IS-IS is an IGP specified and standardized by ISO
>                 through ISO 10589:2002 and additional RFC standards
>                 with extensions to support IP that has been deployed
>                 in the Internet for decades.  For the IS-IS protocol,
>                 LSR’s work is focused on IP routing, currently based
>                 on the agreement in RFC 3563 with ISO/JTC1/SC6. The
>                 LSR WG will interact with other standards bodies that
>                 have responsible for standardizing IS-IS.
>
>                 OSPFv2 [RFC 2328 and extensions], is an IGP that has
>                 been deployed in the Internet for decades. OSPFv3
>                 [RFC5340 and extensions] provides OSPF for IPv6 and
>                 IPv4 [RFC5838] which can be delivered over IPv6 or
>                 IPv4 [RFC 7949].
>
>                 The LSR Working Group will generally manage its
>                 specific work items by milestones agreed with the
>                 responsible Area Director.
>
>                 The following topics are expected to be an initial focus:
>
>                 1) Improving OSPF support for IPv6 and extensions
>                 using OSPFv3 LSA Extendibility.
>
>                 2) Extensions needed for Segment Routing and
>                 associated architectural changes
>
>                 3) YANG models for IS-IS, OSPFv2, and OSPFv3 and
>                 extensions
>
>                 4) Extensions for source-destination routing
>                 [draft-ietf-rtgwg-dst-src-routing]
>
>                 5) Potentially, extensions to better support specific
>                 network topologies such as
>
>                 ones commonly used in data centers.
>
>                 The Link-State Routing (LSR) Working Group will
>                 coordinate with other working groups, such as RTGWG,
>                 SPRING, MPLS, TEAS, V6OPS, and 6MAN, to understand the
>                 need for extensions and to confirm that the planned
>                 work meets the needs.  LSR can coordinate with CCAMP
>                 and BIER on their extensions to the LSR IGPs as
>                 useful.  LSR may coordinate with other WGs as needed.
>
>                 Regards,
>
>                 Alia
>
>
>
>
>                 _______________________________________________
>
>                 Isis-wg mailing list
>
>                 Isis-wg@ietf.org<mailto:Isis-wg@ietf.org>
>
>                 https://www.ietf.org/mailman/listinfo/isis-wg
>


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      <div class="WordSection1">
        <p class="MsoNormal"><span style="color:#1F497D">Stewart -<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><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"> Stewart Bryant
                  [<a class="moz-txt-link-freetext" href="mailto:stewart.bryant@gmail.com">mailto:stewart.bryant@gmail.com</a>]
                  <br>
                  <b>Sent:</b> Thursday, January 25, 2018 4:32 AM<br>
                  <b>To:</b> Les Ginsberg (ginsberg)
                  <a class="moz-txt-link-rfc2396E" href="mailto:ginsberg@cisco.com">&lt;ginsberg@cisco.com&gt;</a>; Acee Lindem (acee)
                  <a class="moz-txt-link-rfc2396E" href="mailto:acee@cisco.com">&lt;acee@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>Cc:</b> OSPF List <a class="moz-txt-link-rfc2396E" href="mailto:ospf@ietf.org">&lt;ospf@ietf.org&gt;</a>;
                  <a class="moz-txt-link-abbreviated" href="mailto:isis-wg@ietf.org">isis-wg@ietf.org</a><br>
                  <b>Subject:</b> Re: [Isis-wg] Link-State Routing WG
                  charter<o:p></o:p></span></p>
            </div>
          </div>
          <p class="MsoNormal"><o:p> </o:p></p>
          <p><o:p> </o:p></p>
          <p>Les<o:p></o:p></p>
          <p>I agree wrt L2<o:p></o:p></p>
          <p>Isn't another focus collecting the information to feed into
            an SDN controller via BGP-LS? That is really network layer 
            state collection rather than routing in the traditional
            sense.<o:p></o:p></p>
          <p><span style="color:#1F497D"><o:p> </o:p></span></p>
          <p><b><i><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">[Les:]
                  Please do not propose such language. This raises the
                  old discussion about using the IGPs as a transport for
                  “just about anything”.<o:p></o:p></span></i></b></p>
          <p><b><i><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">We
                  long ago agreed that TE related information was
                  “routing information” – if for no other reason than it
                  was grandfathered in. But this does not alter the
                  IGP’s focus on routing.<o:p></o:p></span></i></b></p>
          <p><b><i><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">I
                  know we “stretch” the definition with things like MSD
                  and S-BFD discriminators, but I see these as carefully
                  considered choices – and ones w modest impact.<o:p></o:p></span></i></b></p>
          <p><b><i><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Institutionalizing
                  the IGPs as an “SDN Distribution Protocol” is not
                  something I want in the charter.<o:p></o:p></span></i></b></p>
          <p><b><i><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">  
                  Les<o:p></o:p></span></i></b></p>
          <p><b><i><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p> </o:p></span></i></b></p>
        </div>
      </div>
    </blockquote>
    <br>
    Hi Les,<br>
    <br>
    I don't see it quite like that.<br>
    <br>
    I don't think we flood a lot of the SDN specific information do we?
    We just use the LSP data structures as a convenient encoding, and
    supplement the information we flood with additional information.<br>
    <br>
    If we were flooding it I would share your concern, but I don't see
    the reuse of the syntax which is what BGP-LS does as quite such a
    problem.<br>
    <br>
    Am I missing something here?<br>
    <br>
    - Stewart<br>
     <br>
    <br>
    <blockquote type="cite"
      cite="mid:e36ae5811b5041e7a9467a5b1dd577b6@XCH-ALN-001.cisco.com">
      <div class="WordSection1">
        <div style="border:none;border-left:solid blue 1.5pt;padding:0in
          0in 0in 4.0pt">
          <p>- Stewart<o:p></o:p></p>
          <p class="MsoNormal"><o:p> </o:p></p>
          <div>
            <p class="MsoNormal">On 24/01/2018 23:09, Les Ginsberg
              (ginsberg) wrote:<o:p></o:p></p>
          </div>
          <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
            <p class="MsoNormal"><span style="color:#1F497D">It occurred
                to me after sending this that perhaps a better statement
                as regards IS-IS would be:</span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:#1F497D">“LSR’s work
                is focused on IP/IPv6 and Layer 2 routing…”</span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:#1F497D">though
                admittedly there isn’t much going on as regards Layer2
                and IS-IS at the moment.
              </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:#1F497D">   Les</span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
            <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></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"> Isis-wg [<a
                        href="mailto:isis-wg-bounces@ietf.org"
                        moz-do-not-send="true">mailto:isis-wg-bounces@ietf.org</a>]
                      <b>On Behalf Of </b>Les Ginsberg (ginsberg)<br>
                      <b>Sent:</b> Wednesday, January 24, 2018 2:33 PM<br>
                      <b>To:</b> Stewart Bryant <a
                        href="mailto:stewart.bryant@gmail.com"
                        moz-do-not-send="true">&lt;stewart.bryant@gmail.com&gt;</a>;
                      Acee Lindem (acee)
                      <a href="mailto:acee@cisco.com"
                        moz-do-not-send="true">&lt;acee@cisco.com&gt;</a>;
                      Alia Atlas <a href="mailto:akatlas@gmail.com"
                        moz-do-not-send="true">
                        &lt;akatlas@gmail.com&gt;</a><br>
                      <b>Cc:</b> OSPF List <a
                        href="mailto:ospf@ietf.org"
                        moz-do-not-send="true">&lt;ospf@ietf.org&gt;</a>;
                      <a href="mailto:isis-wg@ietf.org"
                        moz-do-not-send="true">
                        isis-wg@ietf.org</a><br>
                      <b>Subject:</b> Re: [Isis-wg] Link-State Routing
                      WG charter</span><o:p></o:p></p>
                </div>
              </div>
              <p class="MsoNormal"> <o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D">Since a
                  charter only provides a general definition of the work
                  that falls within the purview of the WG it requires
                  some adjunct to keep track of the current priorities.</span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D">That
                  could be the list of milestones (which OSPF has
                  regularly maintained – but IS-IS has not) – or it
                  could simply be the list of active WG documents.</span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D">I just
                  don’t see that we should expect the charter to express
                  “work in progress” now – or in the future.</span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D">Alia – do
                  you think the statement about IS-IS:</span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D">“LSR’s
                  work is focused on IP routing…”</span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D">Could be
                  improved by saying</span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D">“LSR’s
                  work is focused on IP/IPv6 routing…”</span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D">???</span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D">   Les</span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></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"> Isis-wg [<a
                          href="mailto:isis-wg-bounces@ietf.org"
                          moz-do-not-send="true">mailto:isis-wg-bounces@ietf.org</a>]
                        <b>On Behalf Of </b>Stewart Bryant<br>
                        <b>Sent:</b> Wednesday, January 24, 2018 10:01
                        AM<br>
                        <b>To:</b> Acee Lindem (acee) &lt;<a
                          href="mailto:acee@cisco.com"
                          moz-do-not-send="true">acee@cisco.com</a>&gt;;
                        Alia Atlas &lt;<a
                          href="mailto:akatlas@gmail.com"
                          moz-do-not-send="true">akatlas@gmail.com</a>&gt;<br>
                        <b>Cc:</b> OSPF List &lt;<a
                          href="mailto:ospf@ietf.org"
                          moz-do-not-send="true">ospf@ietf.org</a>&gt;;
                        <a href="mailto:isis-wg@ietf.org"
                          moz-do-not-send="true">
                          isis-wg@ietf.org</a><br>
                        <b>Subject:</b> Re: [Isis-wg] Link-State Routing
                        WG charter</span><o:p></o:p></p>
                  </div>
                </div>
                <p class="MsoNormal"> <o:p></o:p></p>
                <p>Yes that fixes that.<o:p></o:p></p>
                <p>How about:<o:p></o:p></p>
                <p>s/<a name="_MailOriginalBody" moz-do-not-send="true">The
                    following topics are expected to be an initial
                    focus:/ In addition to ongoing maintenance, the
                    following topics are expected to be an initial
                    focus:/<o:p></o:p></a></p>
                <p><span style="mso-bookmark:_MailOriginalBody">I am
                    just concerned that we need not to loose focus on
                    work in progress.<o:p></o:p></span></p>
                <p><span style="mso-bookmark:_MailOriginalBody">-
                    Stewart<o:p></o:p></span></p>
                <p class="MsoNormal"><span
                    style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                <div>
                  <p class="MsoNormal"><span
                      style="mso-bookmark:_MailOriginalBody">On
                      24/01/2018 17:54, Acee Lindem (acee) wrote:<o:p></o:p></span></p>
                </div>
                <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
                  <p class="MsoNormal"><span
                      style="mso-bookmark:_MailOriginalBody">How about:<o:p></o:p></span></p>
                  <p class="MsoNormal"><span
                      style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                  <p class="MsoNormal"><span
                      style="mso-bookmark:_MailOriginalBody"><span
                        style="font-size:10.0pt;font-family:&quot;Courier
                        New&quot;,serif">LSR will coordinate with CCAMP
                        and BIER on their extensions to the LSR IGPs as</span><o:p></o:p></span></p>
                  <p class="MsoNormal"><span
                      style="mso-bookmark:_MailOriginalBody"><span
                        style="font-size:10.0pt;font-family:&quot;Courier
                        New&quot;,serif">applicable to LSV protocol
                        operation and scale. </span><o:p></o:p></span></p>
                  <p class="MsoNormal"><span
                      style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                  <p class="MsoNormal"><span
                      style="mso-bookmark:_MailOriginalBody">Thanks,<o:p></o:p></span></p>
                  <p class="MsoNormal"><span
                      style="mso-bookmark:_MailOriginalBody">Acee <o:p></o:p></span></p>
                  <p class="MsoNormal"><span
                      style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                  <div style="border:none;border-top:solid #B5C4DF
                    1.0pt;padding:3.0pt 0in 0in 0in">
                    <p class="MsoNormal" style="margin-left:.5in"><span
                        style="mso-bookmark:_MailOriginalBody"><b><span
                            style="font-size:12.0pt">From:
                          </span></b></span><span
                        style="mso-bookmark:_MailOriginalBody"><span
                          style="font-size:12.0pt">Isis-wg
                        </span></span><a
                        href="mailto:isis-wg-bounces@ietf.org"
                        moz-do-not-send="true"><span
                          style="mso-bookmark:_MailOriginalBody"><span
                            style="font-size:12.0pt">&lt;isis-wg-bounces@ietf.org&gt;</span></span><span
                          style="mso-bookmark:_MailOriginalBody"></span></a><span
                        style="mso-bookmark:_MailOriginalBody"><span
                          style="font-size:12.0pt"> on behalf of Alia
                          Atlas </span></span><a
                        href="mailto:akatlas@gmail.com"
                        moz-do-not-send="true"><span
                          style="mso-bookmark:_MailOriginalBody"><span
                            style="font-size:12.0pt">&lt;akatlas@gmail.com&gt;</span></span><span
                          style="mso-bookmark:_MailOriginalBody"></span></a><span
                        style="mso-bookmark:_MailOriginalBody"><span
                          style="font-size:12.0pt"><br>
                          <b>Date: </b>Wednesday, January 24, 2018 at
                          12:42 PM<br>
                          <b>To: </b>Stewart Bryant </span></span><a
                        href="mailto:stewart.bryant@gmail.com"
                        moz-do-not-send="true"><span
                          style="mso-bookmark:_MailOriginalBody"><span
                            style="font-size:12.0pt">&lt;stewart.bryant@gmail.com&gt;</span></span><span
                          style="mso-bookmark:_MailOriginalBody"></span></a><span
                        style="mso-bookmark:_MailOriginalBody"><span
                          style="font-size:12.0pt"><br>
                          <b>Cc: </b>OSPF WG List </span></span><a
                        href="mailto:ospf@ietf.org"
                        moz-do-not-send="true"><span
                          style="mso-bookmark:_MailOriginalBody"><span
                            style="font-size:12.0pt">&lt;ospf@ietf.org&gt;</span></span><span
                          style="mso-bookmark:_MailOriginalBody"></span></a><span
                        style="mso-bookmark:_MailOriginalBody"><span
                          style="font-size:12.0pt">,
                        </span></span><a href="mailto:isis-wg@ietf.org"
                        moz-do-not-send="true"><span
                          style="mso-bookmark:_MailOriginalBody"><span
                            style="font-size:12.0pt">"isis-wg@ietf.org"</span></span><span
                          style="mso-bookmark:_MailOriginalBody"></span></a><span
                        style="mso-bookmark:_MailOriginalBody"><span
                          style="font-size:12.0pt">
                        </span></span><a href="mailto:isis-wg@ietf.org"
                        moz-do-not-send="true"><span
                          style="mso-bookmark:_MailOriginalBody"><span
                            style="font-size:12.0pt">&lt;isis-wg@ietf.org&gt;</span></span><span
                          style="mso-bookmark:_MailOriginalBody"></span></a><span
                        style="mso-bookmark:_MailOriginalBody"><span
                          style="font-size:12.0pt"><br>
                          <b>Subject: </b>Re: [Isis-wg] Link-State
                          Routing WG charter</span><o:p></o:p></span></p>
                  </div>
                  <div>
                    <p class="MsoNormal" style="margin-left:.5in"><span
                        style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                  </div>
                  <div>
                    <p class="MsoNormal" style="margin-left:.5in"><span
                        style="mso-bookmark:_MailOriginalBody">Hi
                        Stewart,
                        <o:p></o:p></span></p>
                    <div>
                      <p class="MsoNormal" style="margin-left:.5in"><span
                          style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                    </div>
                    <div>
                      <p class="MsoNormal" style="margin-left:.5in"><span
                          style="mso-bookmark:_MailOriginalBody">Thanks
                          for the quick feedback.  Feel free to provide
                          suggestions for text changes if you have them.<o:p></o:p></span></p>
                    </div>
                    <div>
                      <p class="MsoNormal" style="margin-left:.5in"><span
                          style="mso-bookmark:_MailOriginalBody">You've
                          certainly written enough charters :-)<o:p></o:p></span></p>
                    </div>
                    <div>
                      <p class="MsoNormal" style="margin-left:.5in"><span
                          style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                    </div>
                    <div>
                      <p class="MsoNormal" style="margin-left:.5in"><span
                          style="mso-bookmark:_MailOriginalBody">Regards,<o:p></o:p></span></p>
                    </div>
                    <div>
                      <p class="MsoNormal" style="margin-left:.5in"><span
                          style="mso-bookmark:_MailOriginalBody">Alia<o:p></o:p></span></p>
                    </div>
                  </div>
                  <div>
                    <p class="MsoNormal" style="margin-left:.5in"><span
                        style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                    <div>
                      <p class="MsoNormal" style="margin-left:.5in"><span
                          style="mso-bookmark:_MailOriginalBody">On Wed,
                          Jan 24, 2018 at 12:32 PM, Stewart Bryant &lt;</span><a
                          href="mailto:stewart.bryant@gmail.com"
                          target="_blank" moz-do-not-send="true"><span
                            style="mso-bookmark:_MailOriginalBody">stewart.bryant@gmail.com</span><span
                            style="mso-bookmark:_MailOriginalBody"></span></a><span
                          style="mso-bookmark:_MailOriginalBody">&gt;
                          wrote:<o:p></o:p></span></p>
                      <blockquote style="border:none;border-left:solid
                        #CCCCCC 1.0pt;padding:0in 0in 0in
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
                        <div>
                          <p style="margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody">Alia,<o:p></o:p></span></p>
                          <p class="MsoNormal" style="margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody">I
                              think that this merger is long overdue,
                              and hopefully it will help new features to
                              be written in an aligned way.<br>
                              <br>
                              I think the remit to perform general
                              maintenance should slightly clarified
                              since the way the charter is written they
                              look like they are at a lower priority
                              than the enumerated list.<br>
                              <br>
                              I would have thought that "LSR can
                              coordinate with CCAMP and BIER on their
                              extensions " should have been more
                              directive.
                              <br>
                              <br>
                              - Stewart <o:p></o:p></span></p>
                          <div>
                            <div>
                              <p class="MsoNormal"
style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in"><span
                                  style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                              <div>
                                <p class="MsoNormal"
                                  style="margin-left:.5in"><span
                                    style="mso-bookmark:_MailOriginalBody">On
                                    24/01/2018 17:18, Alia Atlas wrote:<o:p></o:p></span></p>
                              </div>
                            </div>
                          </div>
                          <blockquote
                            style="margin-top:5.0pt;margin-bottom:5.0pt">
                            <div>
                              <div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:.5in"><span
                                      style="mso-bookmark:_MailOriginalBody">Here
                                      is the proposed charter for the
                                      LSR working group
                                      <o:p></o:p></span></p>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:.5in"><span
                                        style="mso-bookmark:_MailOriginalBody">that
                                        will be created from the SPF and
                                        ISIS working groups.<o:p></o:p></span></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:.5in"><span
                                        style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:.5in"><span
                                        style="mso-bookmark:_MailOriginalBody">This
                                        is scheduled for internal review
                                        for the IESG telechat on
                                        February 8.<o:p></o:p></span></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:.5in"><span
                                        style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:.5in"><span
                                        style="mso-bookmark:_MailOriginalBody"></span><a
href="https://datatracker.ietf.org/doc/charter-ietf-lsr/"
                                        target="_blank"
                                        moz-do-not-send="true"><span
                                          style="mso-bookmark:_MailOriginalBody">https://datatracker.ietf.org/doc/charter-ietf-lsr/</span><span
style="mso-bookmark:_MailOriginalBody"></span></a><span
                                        style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:.5in"><span
                                        style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                  </div>
                                  <div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody">The
                                          Link-State Routing (LSR)
                                          Working Group is chartered to
                                          document current protocol
                                          implementation practices and
                                          improvements, protocol usage
                                          scenarios, maintenance and
                                          extensions of link-state
                                          routing interior gateway
                                          protocols (IGPs) with a focus
                                          on IS-IS, OSPFv2, and OSPFv3. 
                                          The LSR Working Group is
                                          formed by merging the isis and
                                          ospf WGs and will take on all
                                          their existing adopted work at
                                          the time of chartering.<o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody">IS-IS
                                          is an IGP specified and
                                          standardized by ISO through
                                          ISO 10589:2002 and additional
                                          RFC standards with extensions
                                          to support IP that has been
                                          deployed in the Internet for
                                          decades.  For the IS-IS
                                          protocol, LSR’s work is
                                          focused on IP routing,
                                          currently based on the
                                          agreement in RFC 3563 with
                                          ISO/JTC1/SC6. The LSR WG will
                                          interact with other standards
                                          bodies that have responsible
                                          for standardizing IS-IS.<o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody">OSPFv2
                                          [RFC 2328 and extensions], is
                                          an IGP that has been deployed
                                          in the Internet for decades.
                                          OSPFv3 [RFC5340 and
                                          extensions] provides OSPF for
                                          IPv6 and IPv4 [RFC5838] which
                                          can be delivered over IPv6 or
                                          IPv4 [RFC 7949].<o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody">The
                                          LSR Working Group will
                                          generally manage its specific
                                          work items by milestones
                                          agreed with the responsible
                                          Area Director.<o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody">The
                                          following topics are expected
                                          to be an initial focus:<o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody">1)
                                          Improving OSPF support for
                                          IPv6 and extensions using
                                          OSPFv3 LSA Extendibility.<o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody">2)
                                          Extensions needed for Segment
                                          Routing and associated
                                          architectural changes<o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody">3)
                                          YANG models for IS-IS, OSPFv2,
                                          and OSPFv3 and extensions<o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody">4)
                                          Extensions for
                                          source-destination routing
                                          [draft-ietf-rtgwg-dst-src-routing]<o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody">5)
                                          Potentially, extensions to
                                          better support specific
                                          network topologies such as <o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody">ones
                                          commonly used in data centers.<o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:.5in"><span
                                          style="mso-bookmark:_MailOriginalBody">The
                                          Link-State Routing (LSR)
                                          Working Group will coordinate
                                          with other working groups,
                                          such as RTGWG, SPRING, MPLS,
                                          TEAS, V6OPS, and 6MAN, to
                                          understand the need for
                                          extensions and to confirm that
                                          the planned work meets the
                                          needs.  LSR can coordinate
                                          with CCAMP and BIER on their
                                          extensions to the LSR IGPs as
                                          useful.  LSR may coordinate
                                          with other WGs as needed.<o:p></o:p></span></p>
                                    </div>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:.5in"><span
                                        style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:.5in"><span
                                        style="mso-bookmark:_MailOriginalBody">Regards,<o:p></o:p></span></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:.5in"><span
                                        style="mso-bookmark:_MailOriginalBody">Alia<o:p></o:p></span></p>
                                  </div>
                                </div>
                                <p class="MsoNormal"
style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in"><span
style="mso-bookmark:_MailOriginalBody"><br>
                                    <br>
                                    <br>
                                    <o:p></o:p></span></p>
                              </div>
                            </div>
                            <pre style="margin-left:.5in"><span style="mso-bookmark:_MailOriginalBody">_______________________________________________<o:p></o:p></span></pre>
                            <pre style="margin-left:.5in"><span style="mso-bookmark:_MailOriginalBody">Isis-wg mailing list<o:p></o:p></span></pre>
                            <pre style="margin-left:.5in"><span style="mso-bookmark:_MailOriginalBody"></span><a href="mailto:Isis-wg@ietf.org" target="_blank" moz-do-not-send="true"><span style="mso-bookmark:_MailOriginalBody">Isis-wg@ietf.org</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
                            <pre style="margin-left:.5in"><span style="mso-bookmark:_MailOriginalBody"></span><a href="https://www.ietf.org/mailman/listinfo/isis-wg" target="_blank" moz-do-not-send="true"><span style="mso-bookmark:_MailOriginalBody">https://www.ietf.org/mailman/listinfo/isis-wg</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
                          </blockquote>
                          <p class="MsoNormal" style="margin-left:.5in"><span
                              style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></p>
                        </div>
                      </blockquote>
                    </div>
                    <p class="MsoNormal" style="margin-left:.5in"><span
                        style="mso-bookmark:_MailOriginalBody"> </span><o:p></o:p></p>
                  </div>
                </blockquote>
                <p class="MsoNormal"><span
                    style="font-size:12.0pt;font-family:&quot;Times New
                    Roman ,serif&quot;,serif"> </span><o:p></o:p></p>
              </div>
            </div>
          </blockquote>
          <p class="MsoNormal"><span
              style="font-size:12.0pt;font-family:&quot;Times New
              Roman&quot;,serif"><o:p> </o:p></span></p>
        </div>
      </div>
    </blockquote>
    <br>
  </body>
</html>

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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: Stewart Bryant <stewart.bryant@gmail.com>, "Acee Lindem (acee)" <acee@cisco.com>, Alia Atlas <akatlas@gmail.com>
CC: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Thread-Topic: [Isis-wg] Link-State Routing WG charter
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From: "Dolganow, Andrew (Nokia - SG/Singapore)" <andrew.dolganow@nokia.com>
To: "Acee Lindem (acee)" <acee@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, Stewart Bryant <stewart.bryant@gmail.com>, Alia Atlas <akatlas@gmail.com>
CC: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Thread-Topic: [Isis-wg] Link-State Routing WG charter
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Date: Fri, 26 Jan 2018 02:02:07 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/E6lqWZR91C5ka2di0ZSLY6ucFyM>
Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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From: "Dolganow, Andrew (Nokia - SG/Singapore)" <andrew.dolganow@nokia.com>
To: Alia Atlas <akatlas@gmail.com>, "isis-wg@ietf.org" <isis-wg@ietf.org>, OSPF List <ospf@ietf.org>
Thread-Topic: [Isis-wg] Link-State Routing WG charter
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/gSFDKoM5bNgKBveYr9nDWxcGNFE>
Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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From: Alia Atlas <akatlas@gmail.com>
Date: Thu, 25 Jan 2018 22:07:25 -0500
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To: "Dolganow, Andrew (Nokia - SG/Singapore)" <andrew.dolganow@nokia.com>
Cc: "isis-wg@ietf.org" <isis-wg@ietf.org>, OSPF List <ospf@ietf.org>
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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Andrew,


I like that improvement.

Thanks,
Alia

On Thu, Jan 25, 2018 at 9:06 PM, Dolganow, Andrew (Nokia - SG/Singapore) <
andrew.dolganow@nokia.com> wrote:

> One comment =E2=80=93 I would add a bit of text at the end of the below-q=
uoted
> sentence to ensure that =E2=80=9Cextensions planned to meet the needs=E2=
=80=9D do not
> create stability/performance problems to IGPs. I proposed a text in red f=
or
> that:
>
>
>
> The Link-State Routing (LSR) Working Group will coordinate with other
> working groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to
> understand the need for extensions and to confirm that the planned work
> meets the needs and is compatible with both IS-IS and OSPF from
> functional, architectural and performance point of views
>
>
>
> Andrew
>
>
>
> *From: *Isis-wg <isis-wg-bounces@ietf.org> on behalf of Alia Atlas <
> akatlas@gmail.com>
> *Date: *Thursday, January 25, 2018 at 1:19 AM
> *To: *"isis-wg@ietf.org" <isis-wg@ietf.org>, OSPF List <ospf@ietf.org>
> *Subject: *[Isis-wg] Link-State Routing WG charter
>
>
>
> Here is the proposed charter for the LSR working group
>
> that will be created from the SPF and ISIS working groups.
>
>
>
> This is scheduled for internal review for the IESG telechat on February 8=
.
>
>
>
> https://datatracker.ietf.org/doc/charter-ietf-lsr/
>
>
>
> The Link-State Routing (LSR) Working Group is chartered to document
> current protocol implementation practices and improvements, protocol usag=
e
> scenarios, maintenance and extensions of link-state routing interior
> gateway protocols (IGPs) with a focus on IS-IS, OSPFv2, and OSPFv3.  The
> LSR Working Group is formed by merging the isis and ospf WGs and will tak=
e
> on all their existing adopted work at the time of chartering.
>
>
>
> IS-IS is an IGP specified and standardized by ISO through ISO 10589:2002
> and additional RFC standards with extensions to support IP that has been
> deployed in the Internet for decades.  For the IS-IS protocol, LSR=E2=80=
=99s work
> is focused on IP routing, currently based on the agreement in RFC 3563 wi=
th
> ISO/JTC1/SC6. The LSR WG will interact with other standards bodies that
> have responsible for standardizing IS-IS.
>
>
>
> OSPFv2 [RFC 2328 and extensions], is an IGP that has been deployed in the
> Internet for decades. OSPFv3 [RFC5340 and extensions] provides OSPF for
> IPv6 and IPv4 [RFC5838] which can be delivered over IPv6 or IPv4 [RFC 794=
9].
>
>
>
> The LSR Working Group will generally manage its specific work items by
> milestones agreed with the responsible Area Director.
>
>
>
> The following topics are expected to be an initial focus:
>
>
>
> 1) Improving OSPF support for IPv6 and extensions using OSPFv3 LSA
> Extendibility.
>
> 2) Extensions needed for Segment Routing and associated architectural
> changes
>
> 3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions
>
> 4) Extensions for source-destination routing [draft-ietf-rtgwg-dst-src-
> routing]
>
> 5) Potentially, extensions to better support specific network topologies
> such as
>
> ones commonly used in data centers.
>
>
>
> The Link-State Routing (LSR) Working Group will coordinate with other
> working groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to
> understand the need for extensions and to confirm that the planned work
> meets the needs.  LSR can coordinate with CCAMP and BIER on their
> extensions to the LSR IGPs as useful.  LSR may coordinate with other WGs =
as
> needed.
>
>
>
> Regards,
>
> Alia
>

--f4030435c280363dcf0563a532e5
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<div dir=3D"ltr">Andrew,<div><br></div><div><br></div><div>I like that impr=
ovement.</div><div><br></div><div>Thanks,</div><div>Alia</div></div><div cl=
ass=3D"gmail_extra"><br><div class=3D"gmail_quote">On Thu, Jan 25, 2018 at =
9:06 PM, Dolganow, Andrew (Nokia - SG/Singapore) <span dir=3D"ltr">&lt;<a h=
ref=3D"mailto:andrew.dolganow@nokia.com" target=3D"_blank">andrew.dolganow@=
nokia.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">





<div lang=3D"EN-CA" link=3D"blue" vlink=3D"purple">
<div class=3D"m_-2745669069600005367WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US">One comment =E2=80=93 I would a=
dd a bit of text at the end of the below-quoted sentence to ensure that =E2=
=80=9Cextensions planned to meet the needs=E2=80=9D do not create stability=
/performance problems to
 IGPs. I proposed a text in red for that:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal">The Link-State Routing (LSR) Working Group will coor=
dinate with other working groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS,=
 and 6MAN, to understand the need for extensions and to confirm that the pl=
anned work meets the needs
<span style=3D"color:red">and is compatible with both IS-IS and OSPF from f=
unctional, architectural and performance point of views</span><u></u><u></u=
></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Andrew=C2=A0<span lang=3D"EN-US"><u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><b><span style=3D"font-=
size:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">Isis-wg &lt;<a href=
=3D"mailto:isis-wg-bounces@ietf.org" target=3D"_blank">isis-wg-bounces@ietf=
.org</a>&gt; on behalf of Alia Atlas &lt;<a href=3D"mailto:akatlas@gmail.co=
m" target=3D"_blank">akatlas@gmail.com</a>&gt;<br>
<b>Date: </b>Thursday, January 25, 2018 at 1:19 AM<br>
<b>To: </b>&quot;<a href=3D"mailto:isis-wg@ietf.org" target=3D"_blank">isis=
-wg@ietf.org</a>&quot; &lt;<a href=3D"mailto:isis-wg@ietf.org" target=3D"_b=
lank">isis-wg@ietf.org</a>&gt;, OSPF List &lt;<a href=3D"mailto:ospf@ietf.o=
rg" target=3D"_blank">ospf@ietf.org</a>&gt;<br>
<b>Subject: </b>[Isis-wg] Link-State Routing WG charter<u></u><u></u></span=
></p>
</div><div><div class=3D"h5">
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><u></u>=C2=A0<u></u></p=
>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><a name=3D"m_-274566906=
9600005367__MailOriginalBody">Here is the proposed charter for the LSR work=
ing group
<u></u><u></u></a></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>that will be crea=
ted from the SPF and ISIS working groups.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span><u></u>=C2=A0<u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>This is scheduled=
 for internal review for the IESG telechat on February 8.<u></u><u></u></sp=
an></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span><u></u>=C2=A0<u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span></span><a href=3D=
"https://datatracker.ietf.org/doc/charter-ietf-lsr/" target=3D"_blank"><spa=
n>https://datatracker.ietf.org/<wbr>doc/charter-ietf-lsr/</span><span></spa=
n></a><span><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span><u></u>=C2=A0<u><=
/u></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>The Link-State Ro=
uting (LSR) Working Group is chartered to document current protocol impleme=
ntation practices and improvements, protocol usage scenarios, maintenance
 and extensions of link-state routing interior gateway protocols (IGPs) wit=
h a focus on IS-IS, OSPFv2, and OSPFv3.=C2=A0 The LSR Working Group is form=
ed by merging the isis and ospf WGs and will take on all their existing ado=
pted work at the time of chartering.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span><u></u>=C2=A0<u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>IS-IS is an IGP s=
pecified and standardized by ISO through ISO 10589:2002 and additional RFC =
standards with extensions to support IP that has been deployed in the Inter=
net
 for decades.=C2=A0 For the IS-IS protocol, LSR=E2=80=99s work is focused o=
n IP routing, currently based on the agreement in RFC 3563 with ISO/JTC1/SC=
6. The LSR WG will interact with other standards bodies that have responsib=
le for standardizing IS-IS.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span><u></u>=C2=A0<u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>OSPFv2 [RFC 2328 =
and extensions], is an IGP that has been deployed in the Internet for decad=
es. OSPFv3 [RFC5340 and extensions] provides OSPF for IPv6 and IPv4 [RFC583=
8]
 which can be delivered over IPv6 or IPv4 [RFC 7949].<u></u><u></u></span><=
/p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span><u></u>=C2=A0<u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>The LSR Working G=
roup will generally manage its specific work items by milestones agreed wit=
h the responsible Area Director.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span><u></u>=C2=A0<u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>The following top=
ics are expected to be an initial focus:<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>=C2=A0<u></u><u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>1) Improving OSPF=
 support for IPv6 and extensions using OSPFv3 LSA Extendibility.<u></u><u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>2) Extensions nee=
ded for Segment Routing and associated architectural changes<u></u><u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>3) YANG models fo=
r IS-IS, OSPFv2, and OSPFv3 and extensions<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>4) Extensions for=
 source-destination routing [draft-ietf-rtgwg-dst-src-<wbr>routing]<u></u><=
u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>5) Potentially, e=
xtensions to better support specific network topologies such as=C2=A0<u></u=
><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>ones commonly use=
d in data centers.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span><u></u>=C2=A0<u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>The Link-State Ro=
uting (LSR) Working Group will coordinate with other working groups, such a=
s RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to understand the need for
 extensions and to confirm that the planned work meets the needs.=C2=A0 LSR=
 can coordinate with CCAMP and BIER on their extensions to the LSR IGPs as =
useful.=C2=A0 LSR may coordinate with other WGs as needed.<u></u><u></u></s=
pan></p>
</div>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span><u></u>=C2=A0<u><=
/u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>Regards,<u></u><u=
></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span>Alia<u></u><u></u=
></span></p>
</div>
</div>
</div></div></div>
</div>

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

--f4030435c280363dcf0563a532e5--


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Date: Thu, 25 Jan 2018 19:27:00 -0800
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: "Dolganow, Andrew (Nokia - SG/Singapore)" <andrew.dolganow@nokia.com>, "Acee Lindem (acee)" <acee@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, Stewart Bryant <stewart.bryant@gmail.com>, Alia Atlas <akatlas@gmail.com>
CC: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
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Thread-Topic: [OSPF] [Isis-wg] Link-State Routing WG charter
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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+2

=20

we already have a kitchen-sink protocol to do so=E2=80=A6

=20

Cheers,

Jeff

=20

From: OSPF <ospf-bounces@ietf.org> on behalf of "Dolganow, Andrew (Nokia - =
SG/Singapore)" <andrew.dolganow@nokia.com>
Date: Thursday, January 25, 2018 at 18:02
To: "Acee Lindem (acee)" <acee@cisco.com>, "Les Ginsberg (ginsberg)" <ginsb=
erg@cisco.com>, Stewart Bryant <stewart.bryant@gmail.com>, Alia Atlas <akatl=
as@gmail.com>
Cc: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter

=20

+1 to that

=20

From: Isis-wg <isis-wg-bounces@ietf.org> on behalf of "Acee Lindem (acee)" =
<acee@cisco.com>
Date: Friday, January 26, 2018 at 3:18 AM
To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, Stewart Bryant <stewart=
.bryant@gmail.com>, Alia Atlas <akatlas@gmail.com>
Cc: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Subject: Re: [Isis-wg] Link-State Routing WG charter

=20

I agree with Les about being selective about LSR non-routing usage.

=20

Thanks,

Acee

=20

From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
Date: Thursday, January 25, 2018 at 1:59 PM
To: Stewart Bryant <stewart.bryant@gmail.com>, Acee Lindem <acee@cisco.com>=
, Alia Atlas <akatlas@gmail.com>
Cc: OSPF WG List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Subject: RE: [Isis-wg] Link-State Routing WG charter

=20

Stewart -

=20

From: Stewart Bryant [mailto:stewart.bryant@gmail.com]=20
Sent: Thursday, January 25, 2018 4:32 AM
To: Les Ginsberg (ginsberg) <ginsberg@cisco.com>; Acee Lindem (acee) <acee@=
cisco.com>; Alia Atlas <akatlas@gmail.com>
Cc: OSPF List <ospf@ietf.org>; isis-wg@ietf.org
Subject: Re: [Isis-wg] Link-State Routing WG charter

=20

=20

Les

I agree wrt L2

Isn't another focus collecting the information to feed into an SDN controll=
er via BGP-LS? That is really network layer  state collection rather than ro=
uting in the traditional sense.

=20

[Les:] Please do not propose such language. This raises the old discussion =
about using the IGPs as a transport for =E2=80=9Cjust about anything=E2=80=9D.

We long ago agreed that TE related information was =E2=80=9Crouting information=E2=80=
=9D =E2=80=93 if for no other reason than it was grandfathered in. But this does not=
 alter the IGP=E2=80=99s focus on routing.

I know we =E2=80=9Cstretch=E2=80=9D the definition with things like MSD and S-BFD discr=
iminators, but I see these as carefully considered choices =E2=80=93 and ones w mo=
dest impact.

Institutionalizing the IGPs as an =E2=80=9CSDN Distribution Protocol=E2=80=9D is not so=
mething I want in the charter.

   Les

=20

- Stewart

=20

On 24/01/2018 23:09, Les Ginsberg (ginsberg) wrote:

It occurred to me after sending this that perhaps a better statement as reg=
ards IS-IS would be:

=20

=E2=80=9CLSR=E2=80=99s work is focused on IP/IPv6 and Layer 2 routing=E2=80=A6=E2=80=9D

=20

though admittedly there isn=E2=80=99t much going on as regards Layer2 and IS-IS a=
t the moment.=20

=20

   Les

=20

=20

From: Isis-wg [mailto:isis-wg-bounces@ietf.org] On Behalf Of Les Ginsberg (=
ginsberg)
Sent: Wednesday, January 24, 2018 2:33 PM
To: Stewart Bryant <stewart.bryant@gmail.com>; Acee Lindem (acee) <acee@cis=
co.com>; Alia Atlas <akatlas@gmail.com>
Cc: OSPF List <ospf@ietf.org>; isis-wg@ietf.org
Subject: Re: [Isis-wg] Link-State Routing WG charter

=20

Since a charter only provides a general definition of the work that falls w=
ithin the purview of the WG it requires some adjunct to keep track of the cu=
rrent priorities.

That could be the list of milestones (which OSPF has regularly maintained =E2=
=80=93 but IS-IS has not) =E2=80=93 or it could simply be the list of active WG docume=
nts.

I just don=E2=80=99t see that we should expect the charter to express =E2=80=9Cwork in =
progress=E2=80=9D now =E2=80=93 or in the future.

=20

Alia =E2=80=93 do you think the statement about IS-IS:

=20

=E2=80=9CLSR=E2=80=99s work is focused on IP routing=E2=80=A6=E2=80=9D

=20

Could be improved by saying

=20

=E2=80=9CLSR=E2=80=99s work is focused on IP/IPv6 routing=E2=80=A6=E2=80=9D

=20

???

=20

   Les

=20

=20

From: Isis-wg [mailto:isis-wg-bounces@ietf.org] On Behalf Of Stewart Bryant
Sent: Wednesday, January 24, 2018 10:01 AM
To: Acee Lindem (acee) <acee@cisco.com>; Alia Atlas <akatlas@gmail.com>
Cc: OSPF List <ospf@ietf.org>; isis-wg@ietf.org
Subject: Re: [Isis-wg] Link-State Routing WG charter

=20

Yes that fixes that.

How about:

s/The following topics are expected to be an initial focus:/ In addition to=
 ongoing maintenance, the following topics are expected to be an initial foc=
us:/

I am just concerned that we need not to loose focus on work in progress.

- Stewart

=20

On 24/01/2018 17:54, Acee Lindem (acee) wrote:

How about:

=20

LSR will coordinate with CCAMP and BIER on their extensions to the LSR IGPs=
 as

applicable to LSV protocol operation and scale.=20

=20

Thanks,

Acee=20

=20

From: Isis-wg <isis-wg-bounces@ietf.org> on behalf of Alia Atlas <akatlas@g=
mail.com>
Date: Wednesday, January 24, 2018 at 12:42 PM
To: Stewart Bryant <stewart.bryant@gmail.com>
Cc: OSPF WG List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Subject: Re: [Isis-wg] Link-State Routing WG charter

=20

Hi Stewart,=20

=20

Thanks for the quick feedback.  Feel free to provide suggestions for text c=
hanges if you have them.

You've certainly written enough charters :-)

=20

Regards,

Alia

=20

On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant <stewart.bryant@gmail.com>=
 wrote:

Alia,

I think that this merger is long overdue, and hopefully it will help new fe=
atures to be written in an aligned way.

I think the remit to perform general maintenance should slightly clarified =
since the way the charter is written they look like they are at a lower prio=
rity than the enumerated list.

I would have thought that "LSR can coordinate with CCAMP and BIER on their =
extensions " should have been more directive.=20

- Stewart=20

=20

On 24/01/2018 17:18, Alia Atlas wrote:

Here is the proposed charter for the LSR working group=20

that will be created from the SPF and ISIS working groups.

=20

This is scheduled for internal review for the IESG telechat on February 8.

=20

https://datatracker.ietf.org/doc/charter-ietf-lsr/

=20

The Link-State Routing (LSR) Working Group is chartered to document current=
 protocol implementation practices and improvements, protocol usage scenario=
s, maintenance and extensions of link-state routing interior gateway protoco=
ls (IGPs) with a focus on IS-IS, OSPFv2, and OSPFv3.  The LSR Working Group =
is formed by merging the isis and ospf WGs and will take on all their existi=
ng adopted work at the time of chartering.

=20

IS-IS is an IGP specified and standardized by ISO through ISO 10589:2002 an=
d additional RFC standards with extensions to support IP that has been deplo=
yed in the Internet for decades.  For the IS-IS protocol, LSR=E2=80=99s work is fo=
cused on IP routing, currently based on the agreement in RFC 3563 with ISO/J=
TC1/SC6. The LSR WG will interact with other standards bodies that have resp=
onsible for standardizing IS-IS.

=20

OSPFv2 [RFC 2328 and extensions], is an IGP that has been deployed in the I=
nternet for decades. OSPFv3 [RFC5340 and extensions] provides OSPF for IPv6 =
and IPv4 [RFC5838] which can be delivered over IPv6 or IPv4 [RFC 7949].

=20

The LSR Working Group will generally manage its specific work items by mile=
stones agreed with the responsible Area Director.

=20

The following topics are expected to be an initial focus:

=20

1) Improving OSPF support for IPv6 and extensions using OSPFv3 LSA Extendib=
ility.

2) Extensions needed for Segment Routing and associated architectural chang=
es

3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions

4) Extensions for source-destination routing [draft-ietf-rtgwg-dst-src-rout=
ing]

5) Potentially, extensions to better support specific network topologies su=
ch as=20

ones commonly used in data centers.

=20

The Link-State Routing (LSR) Working Group will coordinate with other worki=
ng groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS, and 6MAN, to understand=
 the need for extensions and to confirm that the planned work meets the need=
s.  LSR can coordinate with CCAMP and BIER on their extensions to the LSR IG=
Ps as useful.  LSR may coordinate with other WGs as needed.

=20

Regards,

Alia







_______________________________________________
Isis-wg mailing list
Isis-wg@ietf.org
https://www.ietf.org/mailman/listinfo/isis-wg
=20

=20

=20

=20

_______________________________________________ OSPF mailing list OSPF@ietf=
.org https://www.ietf.org/mailman/listinfo/ospf=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'color:windowtext'>+2<o:=
p></o:p></span></p><p class=3DMsoNormal><span style=3D'color:windowtext'><o:p>&n=
bsp;</o:p></span></p><p class=3DMsoNormal><span style=3D'color:windowtext'>we al=
ready have a kitchen-sink protocol to do so=E2=80=A6<o:p></o:p></span></p><p class=
=3DMsoNormal><span style=3D'color:windowtext'><o:p>&nbsp;</o:p></span></p><div><=
p class=3DMsoNormal>Cheers,<o:p></o:p></p></div><p class=3DMsoNormal>Jeff<span s=
tyle=3D'color:windowtext'><o:p></o:p></span></p><p class=3DMsoNormal><span style=
=3D'color:windowtext'><o:p>&nbsp;</o:p></span></p><div style=3D'border:none;bord=
er-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal><b>=
<span style=3D'font-size:12.0pt'>From: </span></b><span style=3D'font-size:12.0p=
t'>OSPF &lt;ospf-bounces@ietf.org&gt; on behalf of &quot;Dolganow, Andrew (N=
okia - SG/Singapore)&quot; &lt;andrew.dolganow@nokia.com&gt;<br><b>Date: </b=
>Thursday, January 25, 2018 at 18:02<br><b>To: </b>&quot;Acee Lindem (acee)&=
quot; &lt;acee@cisco.com&gt;, &quot;Les Ginsberg (ginsberg)&quot; &lt;ginsbe=
rg@cisco.com&gt;, Stewart Bryant &lt;stewart.bryant@gmail.com&gt;, Alia Atla=
s &lt;akatlas@gmail.com&gt;<br><b>Cc: </b>OSPF List &lt;ospf@ietf.org&gt;, &=
quot;isis-wg@ietf.org&quot; &lt;isis-wg@ietf.org&gt;<br><b>Subject: </b>Re: =
[OSPF] [Isis-wg] Link-State Routing WG charter<o:p></o:p></span></p></div><d=
iv><p class=3DMsoNormal><span style=3D'color:windowtext'><o:p>&nbsp;</o:p></span=
></p></div><p class=3DMsoNormal><span style=3D'color:windowtext'>+1 to that</spa=
n><o:p></o:p></p><p class=3DMsoNormal><span style=3D'color:windowtext'>&nbsp;</s=
pan><o:p></o:p></p><div style=3D'border:none;border-top:solid #B5C4DF 1.0pt;pa=
dding:3.0pt 0in 0in 0in'><p class=3DMsoNormal style=3D'margin-left:.5in'><b><spa=
n style=3D'font-size:12.0pt'>From: </span></b><span style=3D'font-size:12.0pt'>I=
sis-wg &lt;isis-wg-bounces@ietf.org&gt; on behalf of &quot;Acee Lindem (acee=
)&quot; &lt;acee@cisco.com&gt;<br><b>Date: </b>Friday, January 26, 2018 at 3=
:18 AM<br><b>To: </b>&quot;Les Ginsberg (ginsberg)&quot; &lt;ginsberg@cisco.=
com&gt;, Stewart Bryant &lt;stewart.bryant@gmail.com&gt;, Alia Atlas &lt;aka=
tlas@gmail.com&gt;<br><b>Cc: </b>OSPF List &lt;ospf@ietf.org&gt;, &quot;isis=
-wg@ietf.org&quot; &lt;isis-wg@ietf.org&gt;<br><b>Subject: </b>Re: [Isis-wg]=
 Link-State Routing WG charter</span><o:p></o:p></p></div><div><p class=3DMsoN=
ormal style=3D'margin-left:.5in'><span style=3D'color:windowtext'>&nbsp;</span><=
o:p></o:p></p></div><p class=3DMsoNormal style=3D'margin-left:.5in'><span style=3D=
'color:windowtext'>I agree with Les about being selective about LSR non-rout=
ing usage.</span><o:p></o:p></p><p class=3DMsoNormal style=3D'margin-left:.5in'>=
<span style=3D'color:windowtext'>&nbsp;</span><o:p></o:p></p><p class=3DMsoNorma=
l style=3D'margin-left:.5in'><span style=3D'color:windowtext'>Thanks,</span><o:p=
></o:p></p><p class=3DMsoNormal style=3D'margin-left:.5in'><span style=3D'color:wi=
ndowtext'>Acee</span><o:p></o:p></p><p class=3DMsoNormal style=3D'margin-left:.5=
in'><span style=3D'color:windowtext'>&nbsp;</span><o:p></o:p></p><div style=3D'b=
order:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p clas=
s=3DMsoNormal style=3D'margin-left:1.0in'><b><span style=3D'font-size:12.0pt'>From=
: </span></b><span style=3D'font-size:12.0pt'>&quot;Les Ginsberg (ginsberg)&qu=
ot; &lt;ginsberg@cisco.com&gt;<br><b>Date: </b>Thursday, January 25, 2018 at=
 1:59 PM<br><b>To: </b>Stewart Bryant &lt;stewart.bryant@gmail.com&gt;, Acee=
 Lindem &lt;acee@cisco.com&gt;, Alia Atlas &lt;akatlas@gmail.com&gt;<br><b>C=
c: </b>OSPF WG List &lt;ospf@ietf.org&gt;, &quot;isis-wg@ietf.org&quot; &lt;=
isis-wg@ietf.org&gt;<br><b>Subject: </b>RE: [Isis-wg] Link-State Routing WG =
charter</span><o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-lef=
t:1.0in'><span style=3D'color:windowtext'>&nbsp;</span><o:p></o:p></p></div><p=
 class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'color:#1F497D'>Stewa=
rt -</span><o:p></o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'><span=
 style=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></p><div style=3D'border:none;b=
order-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style=3D'bord=
er:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DM=
soNormal style=3D'margin-left:1.0in'><b><span style=3D'color:windowtext'>From:</=
span></b><span style=3D'color:windowtext'> Stewart Bryant [mailto:stewart.brya=
nt@gmail.com] <br><b>Sent:</b> Thursday, January 25, 2018 4:32 AM<br><b>To:<=
/b> Les Ginsberg (ginsberg) &lt;ginsberg@cisco.com&gt;; Acee Lindem (acee) &=
lt;acee@cisco.com&gt;; Alia Atlas &lt;akatlas@gmail.com&gt;<br><b>Cc:</b> OS=
PF List &lt;ospf@ietf.org&gt;; isis-wg@ietf.org<br><b>Subject:</b> Re: [Isis=
-wg] Link-State Routing WG charter</span><o:p></o:p></p></div></div><p class=
=3DMsoNormal style=3D'margin-left:1.0in'>&nbsp;<o:p></o:p></p><p style=3D'margin-l=
eft:1.0in'>&nbsp;<o:p></o:p></p><p style=3D'margin-left:1.0in'>Les<o:p></o:p><=
/p><p style=3D'margin-left:1.0in'>I agree wrt L2<o:p></o:p></p><p style=3D'margi=
n-left:1.0in'>Isn't another focus collecting the information to feed into an=
 SDN controller via BGP-LS? That is really network layer&nbsp; state collect=
ion rather than routing in the traditional sense.<o:p></o:p></p><p style=3D'ma=
rgin-left:1.0in'><span style=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></p><p =
style=3D'margin-left:1.0in'><b><i><span style=3D'color:#1F497D'>[Les:] Please do=
 not propose such language. This raises the old discussion about using the I=
GPs as a transport for =E2=80=9Cjust about anything=E2=80=9D.</span></i></b><o:p></o:p><=
/p><p style=3D'margin-left:1.0in'><b><i><span style=3D'color:#1F497D'>We long ag=
o agreed that TE related information was =E2=80=9Crouting information=E2=80=9D =E2=80=93 if fo=
r no other reason than it was grandfathered in. But this does not alter the =
IGP=E2=80=99s focus on routing.</span></i></b><o:p></o:p></p><p style=3D'margin-left=
:1.0in'><b><i><span style=3D'color:#1F497D'>I know we =E2=80=9Cstretch=E2=80=9D the defini=
tion with things like MSD and S-BFD discriminators, but I see these as caref=
ully considered choices =E2=80=93 and ones w modest impact.</span></i></b><o:p></o=
:p></p><p style=3D'margin-left:1.0in'><b><i><span style=3D'color:#1F497D'>Instit=
utionalizing the IGPs as an =E2=80=9CSDN Distribution Protocol=E2=80=9D is not something=
 I want in the charter.</span></i></b><o:p></o:p></p><p style=3D'margin-left:1=
.0in'><b><i><span style=3D'color:#1F497D'>&nbsp;&nbsp; Les</span></i></b><o:p>=
</o:p></p><p style=3D'margin-left:1.0in'><b><i><span style=3D'color:#1F497D'>&nb=
sp;</span></i></b><o:p></o:p></p><p style=3D'margin-left:1.0in'>- Stewart<o:p>=
</o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'>&nbsp;<o:p></o:p></p>=
<div><p class=3DMsoNormal style=3D'margin-left:1.0in'>On 24/01/2018 23:09, Les G=
insberg (ginsberg) wrote:<o:p></o:p></p></div><blockquote style=3D'margin-top:=
5.0pt;margin-bottom:5.0pt'><p class=3DMsoNormal style=3D'margin-left:1.0in'><spa=
n style=3D'color:#1F497D'>It occurred to me after sending this that perhaps a =
better statement as regards IS-IS would be:</span><o:p></o:p></p><p class=3DMs=
oNormal style=3D'margin-left:1.0in'><span style=3D'color:#1F497D'>&nbsp;</span><=
o:p></o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'colo=
r:#1F497D'>=E2=80=9CLSR=E2=80=99s work is focused on IP/IPv6 and Layer 2 routing=E2=80=A6=E2=80=9D</=
span><o:p></o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'><span style=
=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></p><p class=3DMsoNormal style=3D'margi=
n-left:1.0in'><span style=3D'color:#1F497D'>though admittedly there isn=E2=80=99t mu=
ch going on as regards Layer2 and IS-IS at the moment. </span><o:p></o:p></p=
><p class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'color:#1F497D'>&n=
bsp;</span><o:p></o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'><span=
 style=3D'color:#1F497D'>&nbsp;&nbsp; Les</span><o:p></o:p></p><p class=3DMsoNor=
mal style=3D'margin-left:1.0in'><span style=3D'color:#1F497D'>&nbsp;</span><o:p>=
</o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'color:#1=
F497D'>&nbsp;</span><o:p></o:p></p><div style=3D'border:none;border-left:solid=
 blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style=3D'border:none;border-t=
op:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal style=3D'=
margin-left:1.0in'><b><span style=3D'color:windowtext'>From:</span></b><span s=
tyle=3D'color:windowtext'> Isis-wg [<a href=3D"mailto:isis-wg-bounces@ietf.org">=
mailto:isis-wg-bounces@ietf.org</a>] <b>On Behalf Of </b>Les Ginsberg (ginsb=
erg)<br><b>Sent:</b> Wednesday, January 24, 2018 2:33 PM<br><b>To:</b> Stewa=
rt Bryant <a href=3D"mailto:stewart.bryant@gmail.com">&lt;stewart.bryant@gmail=
.com&gt;</a>; Acee Lindem (acee) <a href=3D"mailto:acee@cisco.com">&lt;acee@ci=
sco.com&gt;</a>; Alia Atlas <a href=3D"mailto:akatlas@gmail.com">&lt;akatlas@g=
mail.com&gt;</a><br><b>Cc:</b> OSPF List <a href=3D"mailto:ospf@ietf.org">&lt;=
ospf@ietf.org&gt;</a>; <a href=3D"mailto:isis-wg@ietf.org">isis-wg@ietf.org</a=
><br><b>Subject:</b> Re: [Isis-wg] Link-State Routing WG charter</span><o:p>=
</o:p></p></div></div><p class=3DMsoNormal style=3D'margin-left:1.0in'>&nbsp;<o:=
p></o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'color:=
#1F497D'>Since a charter only provides a general definition of the work that=
 falls within the purview of the WG it requires some adjunct to keep track o=
f the current priorities.</span><o:p></o:p></p><p class=3DMsoNormal style=3D'mar=
gin-left:1.0in'><span style=3D'color:#1F497D'>That could be the list of milest=
ones (which OSPF has regularly maintained =E2=80=93 but IS-IS has not) =E2=80=93 or it c=
ould simply be the list of active WG documents.</span><o:p></o:p></p><p clas=
s=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'color:#1F497D'>I just don=
=E2=80=99t see that we should expect the charter to express =E2=80=9Cwork in progress=E2=80=9D=
 now =E2=80=93 or in the future.</span><o:p></o:p></p><p class=3DMsoNormal style=3D'ma=
rgin-left:1.0in'><span style=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></p><p =
class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'color:#1F497D'>Alia =E2=
=80=93 do you think the statement about IS-IS:</span><o:p></o:p></p><p class=3DMso=
Normal style=3D'margin-left:1.0in'><span style=3D'color:#1F497D'>&nbsp;</span><o=
:p></o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'color=
:#1F497D'>=E2=80=9CLSR=E2=80=99s work is focused on IP routing=E2=80=A6=E2=80=9D</span><o:p></o:p></=
p><p class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'color:#1F497D'>&=
nbsp;</span><o:p></o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'><spa=
n style=3D'color:#1F497D'>Could be improved by saying</span><o:p></o:p></p><p =
class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'color:#1F497D'>&nbsp;=
</span><o:p></o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'><span sty=
le=3D'color:#1F497D'>=E2=80=9CLSR=E2=80=99s work is focused on IP/IPv6 routing=E2=80=A6=E2=80=9D</span=
><o:p></o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'co=
lor:#1F497D'>&nbsp;</span><o:p></o:p></p><p class=3DMsoNormal style=3D'margin-le=
ft:1.0in'><span style=3D'color:#1F497D'>???</span><o:p></o:p></p><p class=3DMsoN=
ormal style=3D'margin-left:1.0in'><span style=3D'color:#1F497D'>&nbsp;</span><o:=
p></o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'color:=
#1F497D'>&nbsp;&nbsp; Les</span><o:p></o:p></p><p class=3DMsoNormal style=3D'mar=
gin-left:1.0in'><span style=3D'color:#1F497D'>&nbsp;</span><o:p></o:p></p><p c=
lass=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'color:#1F497D'>&nbsp;<=
/span><o:p></o:p></p><div style=3D'border:none;border-left:solid blue 1.5pt;pa=
dding:0in 0in 0in 4.0pt'><div><div style=3D'border:none;border-top:solid #E1E1=
E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal style=3D'margin-left:1.=
0in'><b><span style=3D'color:windowtext'>From:</span></b><span style=3D'color:wi=
ndowtext'> Isis-wg [<a href=3D"mailto:isis-wg-bounces@ietf.org">mailto:isis-wg=
-bounces@ietf.org</a>] <b>On Behalf Of </b>Stewart Bryant<br><b>Sent:</b> We=
dnesday, January 24, 2018 10:01 AM<br><b>To:</b> Acee Lindem (acee) &lt;<a h=
ref=3D"mailto:acee@cisco.com">acee@cisco.com</a>&gt;; Alia Atlas &lt;<a href=3D"=
mailto:akatlas@gmail.com">akatlas@gmail.com</a>&gt;<br><b>Cc:</b> OSPF List =
&lt;<a href=3D"mailto:ospf@ietf.org">ospf@ietf.org</a>&gt;; <a href=3D"mailto:is=
is-wg@ietf.org">isis-wg@ietf.org</a><br><b>Subject:</b> Re: [Isis-wg] Link-S=
tate Routing WG charter</span><o:p></o:p></p></div></div><p class=3DMsoNormal =
style=3D'margin-left:1.0in'>&nbsp;<o:p></o:p></p><p style=3D'margin-left:1.0in'>=
Yes that fixes that.<o:p></o:p></p><p style=3D'margin-left:1.0in'>How about:<o=
:p></o:p></p><p style=3D'margin-left:1.0in'>s/The following topics are expecte=
d to be an initial focus:/ In addition to ongoing maintenance, the following=
 topics are expected to be an initial focus:/<o:p></o:p></p><p style=3D'margin=
-left:1.0in'>I am just concerned that we need not to loose focus on work in =
progress.<o:p></o:p></p><p style=3D'margin-left:1.0in'>- Stewart<o:p></o:p></p=
><p class=3DMsoNormal style=3D'margin-left:1.0in'>&nbsp;<o:p></o:p></p><div><p c=
lass=3DMsoNormal style=3D'margin-left:1.0in'>On 24/01/2018 17:54, Acee Lindem (a=
cee) wrote:<o:p></o:p></p></div><blockquote style=3D'margin-top:5.0pt;margin-b=
ottom:5.0pt'><p class=3DMsoNormal style=3D'margin-left:1.0in'>How about:<o:p></o=
:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'>&nbsp;<o:p></o:p></p><p =
class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'font-size:10.0pt;font=
-family:"Courier New",serif'>LSR will coordinate with CCAMP and BIER on thei=
r extensions to the LSR IGPs as</span><o:p></o:p></p><p class=3DMsoNormal styl=
e=3D'margin-left:1.0in'><span style=3D'font-size:10.0pt;font-family:"Courier New=
",serif'>applicable to LSV protocol operation and scale.&nbsp;</span><o:p></=
o:p></p><p class=3DMsoNormal style=3D'margin-left:1.0in'>&nbsp;<o:p></o:p></p><p=
 class=3DMsoNormal style=3D'margin-left:1.0in'>Thanks,<o:p></o:p></p><p class=3DMs=
oNormal style=3D'margin-left:1.0in'>Acee <o:p></o:p></p><p class=3DMsoNormal sty=
le=3D'margin-left:1.0in'>&nbsp;<o:p></o:p></p><div style=3D'border:none;border-t=
op:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal style=3D'=
margin-left:1.5in'><b><span style=3D'font-size:12.0pt'>From: </span></b><span =
style=3D'font-size:12.0pt'>Isis-wg </span><a href=3D"mailto:isis-wg-bounces@ietf=
.org"><span style=3D'font-size:12.0pt'>&lt;isis-wg-bounces@ietf.org&gt;</span>=
</a><span style=3D'font-size:12.0pt'> on behalf of Alia Atlas </span><a href=3D"=
mailto:akatlas@gmail.com"><span style=3D'font-size:12.0pt'>&lt;akatlas@gmail.c=
om&gt;</span></a><span style=3D'font-size:12.0pt'><br><b>Date: </b>Wednesday, =
January 24, 2018 at 12:42 PM<br><b>To: </b>Stewart Bryant </span><a href=3D"ma=
ilto:stewart.bryant@gmail.com"><span style=3D'font-size:12.0pt'>&lt;stewart.br=
yant@gmail.com&gt;</span></a><span style=3D'font-size:12.0pt'><br><b>Cc: </b>O=
SPF WG List </span><a href=3D"mailto:ospf@ietf.org"><span style=3D'font-size:12.=
0pt'>&lt;ospf@ietf.org&gt;</span></a><span style=3D'font-size:12.0pt'>, </span=
><a href=3D"mailto:isis-wg@ietf.org"><span style=3D'font-size:12.0pt'>&quot;isis=
-wg@ietf.org&quot;</span></a><span style=3D'font-size:12.0pt'> </span><a href=3D=
"mailto:isis-wg@ietf.org"><span style=3D'font-size:12.0pt'>&lt;isis-wg@ietf.or=
g&gt;</span></a><span style=3D'font-size:12.0pt'><br><b>Subject: </b>Re: [Isis=
-wg] Link-State Routing WG charter</span><o:p></o:p></p></div><div><p class=3D=
MsoNormal style=3D'margin-left:1.5in'>&nbsp;<o:p></o:p></p></div><div><p class=
=3DMsoNormal style=3D'margin-left:1.5in'>Hi Stewart, <o:p></o:p></p><div><p clas=
s=3DMsoNormal style=3D'margin-left:1.5in'>&nbsp;<o:p></o:p></p></div><div><p cla=
ss=3DMsoNormal style=3D'margin-left:1.5in'>Thanks for the quick feedback.&nbsp; =
Feel free to provide suggestions for text changes if you have them.<o:p></o:=
p></p></div><div><p class=3DMsoNormal style=3D'margin-left:1.5in'>You've certain=
ly written enough charters :-)<o:p></o:p></p></div><div><p class=3DMsoNormal s=
tyle=3D'margin-left:1.5in'>&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal =
style=3D'margin-left:1.5in'>Regards,<o:p></o:p></p></div><div><p class=3DMsoNorm=
al style=3D'margin-left:1.5in'>Alia<o:p></o:p></p></div></div><div><p class=3DMs=
oNormal style=3D'margin-left:1.5in'>&nbsp;<o:p></o:p></p><div><p class=3DMsoNorm=
al style=3D'margin-left:1.5in'>On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryan=
t &lt;<a href=3D"mailto:stewart.bryant@gmail.com" target=3D"_blank">stewart.brya=
nt@gmail.com</a>&gt; wrote:<o:p></o:p></p><blockquote style=3D'border:none;bor=
der-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;mar=
gin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'><div><p style=3D'margin-le=
ft:1.5in'>Alia,<o:p></o:p></p><p class=3DMsoNormal style=3D'margin-left:1.5in'>I=
 think that this merger is long overdue, and hopefully it will help new feat=
ures to be written in an aligned way.<br><br>I think the remit to perform ge=
neral maintenance should slightly clarified since the way the charter is wri=
tten they look like they are at a lower priority than the enumerated list.<b=
r><br>I would have thought that &quot;LSR can coordinate with CCAMP and BIER=
 on their extensions &quot; should have been more directive. <br><br>- Stewa=
rt <o:p></o:p></p><div><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:0in=
;margin-right:0in;margin-bottom:12.0pt;margin-left:1.5in'>&nbsp;<o:p></o:p><=
/p><div><p class=3DMsoNormal style=3D'margin-left:1.5in'>On 24/01/2018 17:18, Al=
ia Atlas wrote:<o:p></o:p></p></div></div></div><blockquote style=3D'margin-to=
p:5.0pt;margin-bottom:5.0pt'><div><div><div><p class=3DMsoNormal style=3D'margin=
-left:1.5in'>Here is the proposed charter for the LSR working group <o:p></o=
:p></p><div><p class=3DMsoNormal style=3D'margin-left:1.5in'>that will be create=
d from the SPF and ISIS working groups.<o:p></o:p></p></div><div><p class=3DMs=
oNormal style=3D'margin-left:1.5in'>&nbsp;<o:p></o:p></p></div><div><p class=3DM=
soNormal style=3D'margin-left:1.5in'>This is scheduled for internal review for=
 the IESG telechat on February 8.<o:p></o:p></p></div><div><p class=3DMsoNorma=
l style=3D'margin-left:1.5in'>&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNorm=
al style=3D'margin-left:1.5in'><a href=3D"https://datatracker.ietf.org/doc/chart=
er-ietf-lsr/" target=3D"_blank">https://datatracker.ietf.org/doc/charter-ietf-=
lsr/</a><o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:1.5i=
n'>&nbsp;<o:p></o:p></p></div><div><div><p class=3DMsoNormal style=3D'margin-lef=
t:1.5in'>The Link-State Routing (LSR) Working Group is chartered to document=
 current protocol implementation practices and improvements, protocol usage =
scenarios, maintenance and extensions of link-state routing interior gateway=
 protocols (IGPs) with a focus on IS-IS, OSPFv2, and OSPFv3.&nbsp; The LSR W=
orking Group is formed by merging the isis and ospf WGs and will take on all=
 their existing adopted work at the time of chartering.<o:p></o:p></p></div>=
<div><p class=3DMsoNormal style=3D'margin-left:1.5in'>&nbsp;<o:p></o:p></p></div=
><div><p class=3DMsoNormal style=3D'margin-left:1.5in'>IS-IS is an IGP specified=
 and standardized by ISO through ISO 10589:2002 and additional RFC standards=
 with extensions to support IP that has been deployed in the Internet for de=
cades.&nbsp; For the IS-IS protocol, LSR=E2=80=99s work is focused on IP routing, =
currently based on the agreement in RFC 3563 with ISO/JTC1/SC6. The LSR WG w=
ill interact with other standards bodies that have responsible for standardi=
zing IS-IS.<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:1=
.5in'>&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:=
1.5in'>OSPFv2 [RFC 2328 and extensions], is an IGP that has been deployed in=
 the Internet for decades. OSPFv3 [RFC5340 and extensions] provides OSPF for=
 IPv6 and IPv4 [RFC5838] which can be delivered over IPv6 or IPv4 [RFC 7949]=
.<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:1.5in'>&nbs=
p;<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:1.5in'>The=
 LSR Working Group will generally manage its specific work items by mileston=
es agreed with the responsible Area Director.<o:p></o:p></p></div><div><p cl=
ass=3DMsoNormal style=3D'margin-left:1.5in'>&nbsp;<o:p></o:p></p></div><div><p c=
lass=3DMsoNormal style=3D'margin-left:1.5in'>The following topics are expected t=
o be an initial focus:<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'ma=
rgin-left:1.5in'>&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'm=
argin-left:1.5in'>1) Improving OSPF support for IPv6 and extensions using OS=
PFv3 LSA Extendibility.<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'm=
argin-left:1.5in'>2) Extensions needed for Segment Routing and associated ar=
chitectural changes<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'margi=
n-left:1.5in'>3) YANG models for IS-IS, OSPFv2, and OSPFv3 and extensions<o:=
p></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:1.5in'>4) Exten=
sions for source-destination routing [draft-ietf-rtgwg-dst-src-routing]<o:p>=
</o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:1.5in'>5) Potenti=
ally, extensions to better support specific network topologies such as&nbsp;=
<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D'margin-left:1.5in'>ones =
commonly used in data centers.<o:p></o:p></p></div><div><p class=3DMsoNormal s=
tyle=3D'margin-left:1.5in'>&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal =
style=3D'margin-left:1.5in'>The Link-State Routing (LSR) Working Group will co=
ordinate with other working groups, such as RTGWG, SPRING, MPLS, TEAS, V6OPS=
, and 6MAN, to understand the need for extensions and to confirm that the pl=
anned work meets the needs.&nbsp; LSR can coordinate with CCAMP and BIER on =
their extensions to the LSR IGPs as useful.&nbsp; LSR may coordinate with ot=
her WGs as needed.<o:p></o:p></p></div></div><div><p class=3DMsoNormal style=3D'=
margin-left:1.5in'>&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal style=3D=
'margin-left:1.5in'>Regards,<o:p></o:p></p></div><div><p class=3DMsoNormal sty=
le=3D'margin-left:1.5in'>Alia<o:p></o:p></p></div></div><p class=3DMsoNormal sty=
le=3D'mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left=
:1.5in'><br><br><br><br><br><br><o:p></o:p></p></div></div><pre style=3D'margi=
n-left:1.5in'>_______________________________________________<o:p></o:p></pr=
e><pre style=3D'margin-left:1.5in'>Isis-wg mailing list<o:p></o:p></pre><pre s=
tyle=3D'margin-left:1.5in'><a href=3D"mailto:Isis-wg@ietf.org" target=3D"_blank">I=
sis-wg@ietf.org</a><o:p></o:p></pre><pre style=3D'margin-left:1.5in'><a href=3D"=
https://www.ietf.org/mailman/listinfo/isis-wg" target=3D"_blank">https://www.i=
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soNormal style=3D'margin-left:1.5in'>&nbsp;<o:p></o:p></p></div></blockquote><=
/div><p class=3DMsoNormal style=3D'margin-left:1.5in'>&nbsp;<o:p></o:p></p></div=
></blockquote><p class=3DMsoNormal style=3D'margin-left:1.0in'><span style=3D'font=
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n style=3D'font-size:12.0pt;font-family:"Times New Roman",serif'>&nbsp;</span>=
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To: Jeff Tantsura <jefftant.ietf@gmail.com>, "Dolganow, Andrew (Nokia - SG/Singapore)" <andrew.dolganow@nokia.com>, "Acee Lindem (acee)" <acee@cisco.com>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, Alia Atlas <akatlas@gmail.com>
Cc: OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
References: <FBFC3934-FB67-46D1-9118-8F83D3A675D2@gmail.com>
From: Stewart Bryant <stewart.bryant@gmail.com>
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Subject: Re: [OSPF] [Isis-wg] Link-State Routing WG charter
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OK, I know when I am in the rough.

S


On 26/01/2018 03:27, Jeff Tantsura wrote:
>
> +2
>
> we already have a kitchen-sink protocol to do so…
>
> Cheers,
>
> Jeff
>
> *From: *OSPF <ospf-bounces@ietf.org> on behalf of "Dolganow, Andrew 
> (Nokia - SG/Singapore)" <andrew.dolganow@nokia.com>
> *Date: *Thursday, January 25, 2018 at 18:02
> *To: *"Acee Lindem (acee)" <acee@cisco.com>, "Les Ginsberg (ginsberg)" 
> <ginsberg@cisco.com>, Stewart Bryant <stewart.bryant@gmail.com>, Alia 
> Atlas <akatlas@gmail.com>
> *Cc: *OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
> *Subject: *Re: [OSPF] [Isis-wg] Link-State Routing WG charter
>
> +1 to that
>
> *From: *Isis-wg <isis-wg-bounces@ietf.org> on behalf of "Acee Lindem 
> (acee)" <acee@cisco.com>
> *Date: *Friday, January 26, 2018 at 3:18 AM
> *To: *"Les Ginsberg (ginsberg)" <ginsberg@cisco.com>, Stewart Bryant 
> <stewart.bryant@gmail.com>, Alia Atlas <akatlas@gmail.com>
> *Cc: *OSPF List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
> *Subject: *Re: [Isis-wg] Link-State Routing WG charter
>
> I agree with Les about being selective about LSR non-routing usage.
>
> Thanks,
>
> Acee
>
> *From: *"Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
> *Date: *Thursday, January 25, 2018 at 1:59 PM
> *To: *Stewart Bryant <stewart.bryant@gmail.com>, Acee Lindem 
> <acee@cisco.com>, Alia Atlas <akatlas@gmail.com>
> *Cc: *OSPF WG List <ospf@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
> *Subject: *RE: [Isis-wg] Link-State Routing WG charter
>
> Stewart -
>
> *From:*Stewart Bryant [mailto:stewart.bryant@gmail.com]
> *Sent:* Thursday, January 25, 2018 4:32 AM
> *To:* Les Ginsberg (ginsberg) <ginsberg@cisco.com>; Acee Lindem (acee) 
> <acee@cisco.com>; Alia Atlas <akatlas@gmail.com>
> *Cc:* OSPF List <ospf@ietf.org>; isis-wg@ietf.org
> *Subject:* Re: [Isis-wg] Link-State Routing WG charter
>
> Les
>
> I agree wrt L2
>
> Isn't another focus collecting the information to feed into an SDN 
> controller via BGP-LS? That is really network layer  state collection 
> rather than routing in the traditional sense.
>
> */[Les:] Please do not propose such language. This raises the old 
> discussion about using the IGPs as a transport for “just about 
> anything”./*
>
> */We long ago agreed that TE related information was “routing 
> information” – if for no other reason than it was grandfathered in. 
> But this does not alter the IGP’s focus on routing./*
>
> */I know we “stretch” the definition with things like MSD and S-BFD 
> discriminators, but I see these as carefully considered choices – and 
> ones w modest impact./*
>
> */Institutionalizing the IGPs as an “SDN Distribution Protocol” is not 
> something I want in the charter./*
>
> */Les/*
>
> *//*
>
> - Stewart
>
> On 24/01/2018 23:09, Les Ginsberg (ginsberg) wrote:
>
>     It occurred to me after sending this that perhaps a better
>     statement as regards IS-IS would be:
>
>     “LSR’s work is focused on IP/IPv6 and Layer 2 routing…”
>
>     though admittedly there isn’t much going on as regards Layer2 and
>     IS-IS at the moment.
>
>        Les
>
>     *From:*Isis-wg [mailto:isis-wg-bounces@ietf.org] *On Behalf Of
>     *Les Ginsberg (ginsberg)
>     *Sent:* Wednesday, January 24, 2018 2:33 PM
>     *To:* Stewart Bryant <stewart.bryant@gmail.com>
>     <mailto:stewart.bryant@gmail.com>; Acee Lindem (acee)
>     <acee@cisco.com> <mailto:acee@cisco.com>; Alia Atlas
>     <akatlas@gmail.com> <mailto:akatlas@gmail.com>
>     *Cc:* OSPF List <ospf@ietf.org> <mailto:ospf@ietf.org>;
>     isis-wg@ietf.org <mailto:isis-wg@ietf.org>
>     *Subject:* Re: [Isis-wg] Link-State Routing WG charter
>
>     Since a charter only provides a general definition of the work
>     that falls within the purview of the WG it requires some adjunct
>     to keep track of the current priorities.
>
>     That could be the list of milestones (which OSPF has regularly
>     maintained – but IS-IS has not) – or it could simply be the list
>     of active WG documents.
>
>     I just don’t see that we should expect the charter to express
>     “work in progress” now – or in the future.
>
>     Alia – do you think the statement about IS-IS:
>
>     “LSR’s work is focused on IP routing…”
>
>     Could be improved by saying
>
>     “LSR’s work is focused on IP/IPv6 routing…”
>
>     ???
>
>        Les
>
>     *From:*Isis-wg [mailto:isis-wg-bounces@ietf.org] *On Behalf Of
>     *Stewart Bryant
>     *Sent:* Wednesday, January 24, 2018 10:01 AM
>     *To:* Acee Lindem (acee) <acee@cisco.com <mailto:acee@cisco.com>>;
>     Alia Atlas <akatlas@gmail.com <mailto:akatlas@gmail.com>>
>     *Cc:* OSPF List <ospf@ietf.org <mailto:ospf@ietf.org>>;
>     isis-wg@ietf.org <mailto:isis-wg@ietf.org>
>     *Subject:* Re: [Isis-wg] Link-State Routing WG charter
>
>     Yes that fixes that.
>
>     How about:
>
>     s/The following topics are expected to be an initial focus:/ In
>     addition to ongoing maintenance, the following topics are expected
>     to be an initial focus:/
>
>     I am just concerned that we need not to loose focus on work in
>     progress.
>
>     - Stewart
>
>     On 24/01/2018 17:54, Acee Lindem (acee) wrote:
>
>         How about:
>
>         LSR will coordinate with CCAMP and BIER on their extensions to
>         the LSR IGPs as
>
>         applicable to LSV protocol operation and scale.
>
>         Thanks,
>
>         Acee
>
>         *From: *Isis-wg <isis-wg-bounces@ietf.org>
>         <mailto:isis-wg-bounces@ietf.org>on behalf of Alia Atlas
>         <akatlas@gmail.com> <mailto:akatlas@gmail.com>
>         *Date: *Wednesday, January 24, 2018 at 12:42 PM
>         *To: *Stewart Bryant <stewart.bryant@gmail.com>
>         <mailto:stewart.bryant@gmail.com>
>         *Cc: *OSPF WG List <ospf@ietf.org> <mailto:ospf@ietf.org>,
>         "isis-wg@ietf.org" <mailto:isis-wg@ietf.org><isis-wg@ietf.org>
>         <mailto:isis-wg@ietf.org>
>         *Subject: *Re: [Isis-wg] Link-State Routing WG charter
>
>         Hi Stewart,
>
>         Thanks for the quick feedback.  Feel free to provide
>         suggestions for text changes if you have them.
>
>         You've certainly written enough charters :-)
>
>         Regards,
>
>         Alia
>
>         On Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant
>         <stewart.bryant@gmail.com <mailto:stewart.bryant@gmail.com>>
>         wrote:
>
>             Alia,
>
>             I think that this merger is long overdue, and hopefully it
>             will help new features to be written in an aligned way.
>
>             I think the remit to perform general maintenance should
>             slightly clarified since the way the charter is written
>             they look like they are at a lower priority than the
>             enumerated list.
>
>             I would have thought that "LSR can coordinate with CCAMP
>             and BIER on their extensions " should have been more
>             directive.
>
>             - Stewart
>
>             On 24/01/2018 17:18, Alia Atlas wrote:
>
>                 Here is the proposed charter for the LSR working group
>
>                 that will be created from the SPF and ISIS working groups.
>
>                 This is scheduled for internal review for the IESG
>                 telechat on February 8.
>
>                 https://datatracker.ietf.org/doc/charter-ietf-lsr/
>
>                 The Link-State Routing (LSR) Working Group is
>                 chartered to document current protocol implementation
>                 practices and improvements, protocol usage scenarios,
>                 maintenance and extensions of link-state routing
>                 interior gateway protocols (IGPs) with a focus on
>                 IS-IS, OSPFv2, and OSPFv3.  The LSR Working Group is
>                 formed by merging the isis and ospf WGs and will take
>                 on all their existing adopted work at the time of
>                 chartering.
>
>                 IS-IS is an IGP specified and standardized by ISO
>                 through ISO 10589:2002 and additional RFC standards
>                 with extensions to support IP that has been deployed
>                 in the Internet for decades.  For the IS-IS protocol,
>                 LSR’s work is focused on IP routing, currently based
>                 on the agreement in RFC 3563 with ISO/JTC1/SC6. The
>                 LSR WG will interact with other standards bodies that
>                 have responsible for standardizing IS-IS.
>
>                 OSPFv2 [RFC 2328 and extensions], is an IGP that has
>                 been deployed in the Internet for decades. OSPFv3
>                 [RFC5340 and extensions] provides OSPF for IPv6 and
>                 IPv4 [RFC5838] which can be delivered over IPv6 or
>                 IPv4 [RFC 7949].
>
>                 The LSR Working Group will generally manage its
>                 specific work items by milestones agreed with the
>                 responsible Area Director.
>
>                 The following topics are expected to be an initial focus:
>
>                 1) Improving OSPF support for IPv6 and extensions
>                 using OSPFv3 LSA Extendibility.
>
>                 2) Extensions needed for Segment Routing and
>                 associated architectural changes
>
>                 3) YANG models for IS-IS, OSPFv2, and OSPFv3 and
>                 extensions
>
>                 4) Extensions for source-destination routing
>                 [draft-ietf-rtgwg-dst-src-routing]
>
>                 5) Potentially, extensions to better support specific
>                 network topologies such as
>
>                 ones commonly used in data centers.
>
>                 The Link-State Routing (LSR) Working Group will
>                 coordinate with other working groups, such as RTGWG,
>                 SPRING, MPLS, TEAS, V6OPS, and 6MAN, to understand the
>                 need for extensions and to confirm that the planned
>                 work meets the needs.  LSR can coordinate with CCAMP
>                 and BIER on their extensions to the LSR IGPs as
>                 useful.  LSR may coordinate with other WGs as needed.
>
>                 Regards,
>
>                 Alia
>
>
>
>
>
>
>
>                 _______________________________________________
>
>                 Isis-wg mailing list
>
>                 Isis-wg@ietf.org <mailto:Isis-wg@ietf.org>
>
>                 https://www.ietf.org/mailman/listinfo/isis-wg
>
> _______________________________________________ OSPF mailing list 
> OSPF@ietf.org https://www.ietf.org/mailman/listinfo/ospf
>


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    <p>OK, I know when I am in the rough.</p>
    <p>S<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 26/01/2018 03:27, Jeff Tantsura
      wrote:<br>
    </div>
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      <div class="WordSection1">
        <p class="MsoNormal"><span style="color:windowtext">+2<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">we already
            have a kitchen-sink protocol to do so…<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext"><o:p> </o:p></span></p>
        <div>
          <p class="MsoNormal">Cheers,<o:p></o:p></p>
        </div>
        <p class="MsoNormal">Jeff<span style="color:windowtext"><o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:windowtext"><o:p> </o:p></span></p>
        <div style="border:none;border-top:solid #B5C4DF
          1.0pt;padding:3.0pt 0in 0in 0in">
          <p class="MsoNormal"><b><span style="font-size:12.0pt">From: </span></b><span
              style="font-size:12.0pt">OSPF
              <a class="moz-txt-link-rfc2396E" href="mailto:ospf-bounces@ietf.org">&lt;ospf-bounces@ietf.org&gt;</a> on behalf of "Dolganow,
              Andrew (Nokia - SG/Singapore)"
              <a class="moz-txt-link-rfc2396E" href="mailto:andrew.dolganow@nokia.com">&lt;andrew.dolganow@nokia.com&gt;</a><br>
              <b>Date: </b>Thursday, January 25, 2018 at 18:02<br>
              <b>To: </b>"Acee Lindem (acee)" <a class="moz-txt-link-rfc2396E" href="mailto:acee@cisco.com">&lt;acee@cisco.com&gt;</a>,
              "Les Ginsberg (ginsberg)" <a class="moz-txt-link-rfc2396E" href="mailto:ginsberg@cisco.com">&lt;ginsberg@cisco.com&gt;</a>,
              Stewart Bryant <a class="moz-txt-link-rfc2396E" href="mailto:stewart.bryant@gmail.com">&lt;stewart.bryant@gmail.com&gt;</a>, Alia
              Atlas <a class="moz-txt-link-rfc2396E" href="mailto:akatlas@gmail.com">&lt;akatlas@gmail.com&gt;</a><br>
              <b>Cc: </b>OSPF List <a class="moz-txt-link-rfc2396E" href="mailto:ospf@ietf.org">&lt;ospf@ietf.org&gt;</a>,
              <a class="moz-txt-link-rfc2396E" href="mailto:isis-wg@ietf.org">"isis-wg@ietf.org"</a> <a class="moz-txt-link-rfc2396E" href="mailto:isis-wg@ietf.org">&lt;isis-wg@ietf.org&gt;</a><br>
              <b>Subject: </b>Re: [OSPF] [Isis-wg] Link-State Routing
              WG charter<o:p></o:p></span></p>
        </div>
        <div>
          <p class="MsoNormal"><span style="color:windowtext"><o:p> </o:p></span></p>
        </div>
        <p class="MsoNormal"><span style="color:windowtext">+1 to that</span><o:p></o:p></p>
        <p class="MsoNormal"><span style="color:windowtext"> </span><o:p></o:p></p>
        <div style="border:none;border-top:solid #B5C4DF
          1.0pt;padding:3.0pt 0in 0in 0in">
          <p class="MsoNormal" style="margin-left:.5in"><b><span
                style="font-size:12.0pt">From: </span></b><span
              style="font-size:12.0pt">Isis-wg
              <a class="moz-txt-link-rfc2396E" href="mailto:isis-wg-bounces@ietf.org">&lt;isis-wg-bounces@ietf.org&gt;</a> on behalf of "Acee Lindem
              (acee)" <a class="moz-txt-link-rfc2396E" href="mailto:acee@cisco.com">&lt;acee@cisco.com&gt;</a><br>
              <b>Date: </b>Friday, January 26, 2018 at 3:18 AM<br>
              <b>To: </b>"Les Ginsberg (ginsberg)"
              <a class="moz-txt-link-rfc2396E" href="mailto:ginsberg@cisco.com">&lt;ginsberg@cisco.com&gt;</a>, Stewart Bryant
              <a class="moz-txt-link-rfc2396E" href="mailto:stewart.bryant@gmail.com">&lt;stewart.bryant@gmail.com&gt;</a>, Alia Atlas
              <a class="moz-txt-link-rfc2396E" href="mailto:akatlas@gmail.com">&lt;akatlas@gmail.com&gt;</a><br>
              <b>Cc: </b>OSPF List <a class="moz-txt-link-rfc2396E" href="mailto:ospf@ietf.org">&lt;ospf@ietf.org&gt;</a>,
              <a class="moz-txt-link-rfc2396E" href="mailto:isis-wg@ietf.org">"isis-wg@ietf.org"</a> <a class="moz-txt-link-rfc2396E" href="mailto:isis-wg@ietf.org">&lt;isis-wg@ietf.org&gt;</a><br>
              <b>Subject: </b>Re: [Isis-wg] Link-State Routing WG
              charter</span><o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal" style="margin-left:.5in"><span
              style="color:windowtext"> </span><o:p></o:p></p>
        </div>
        <p class="MsoNormal" style="margin-left:.5in"><span
            style="color:windowtext">I agree with Les about being
            selective about LSR non-routing usage.</span><o:p></o:p></p>
        <p class="MsoNormal" style="margin-left:.5in"><span
            style="color:windowtext"> </span><o:p></o:p></p>
        <p class="MsoNormal" style="margin-left:.5in"><span
            style="color:windowtext">Thanks,</span><o:p></o:p></p>
        <p class="MsoNormal" style="margin-left:.5in"><span
            style="color:windowtext">Acee</span><o:p></o:p></p>
        <p class="MsoNormal" style="margin-left:.5in"><span
            style="color:windowtext"> </span><o:p></o:p></p>
        <div style="border:none;border-top:solid #B5C4DF
          1.0pt;padding:3.0pt 0in 0in 0in">
          <p class="MsoNormal" style="margin-left:1.0in"><b><span
                style="font-size:12.0pt">From: </span></b><span
              style="font-size:12.0pt">"Les Ginsberg (ginsberg)"
              <a class="moz-txt-link-rfc2396E" href="mailto:ginsberg@cisco.com">&lt;ginsberg@cisco.com&gt;</a><br>
              <b>Date: </b>Thursday, January 25, 2018 at 1:59 PM<br>
              <b>To: </b>Stewart Bryant
              <a class="moz-txt-link-rfc2396E" href="mailto:stewart.bryant@gmail.com">&lt;stewart.bryant@gmail.com&gt;</a>, Acee Lindem
              <a class="moz-txt-link-rfc2396E" href="mailto:acee@cisco.com">&lt;acee@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>Cc: </b>OSPF WG List <a class="moz-txt-link-rfc2396E" href="mailto:ospf@ietf.org">&lt;ospf@ietf.org&gt;</a>,
              <a class="moz-txt-link-rfc2396E" href="mailto:isis-wg@ietf.org">"isis-wg@ietf.org"</a> <a class="moz-txt-link-rfc2396E" href="mailto:isis-wg@ietf.org">&lt;isis-wg@ietf.org&gt;</a><br>
              <b>Subject: </b>RE: [Isis-wg] Link-State Routing WG
              charter</span><o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal" style="margin-left:1.0in"><span
              style="color:windowtext"> </span><o:p></o:p></p>
        </div>
        <p class="MsoNormal" style="margin-left:1.0in"><span
            style="color:#1F497D">Stewart -</span><o:p></o:p></p>
        <p class="MsoNormal" style="margin-left:1.0in"><span
            style="color:#1F497D"> </span><o:p></o:p></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" style="margin-left:1.0in"><b><span
                    style="color:windowtext">From:</span></b><span
                  style="color:windowtext"> Stewart Bryant
                  [<a class="moz-txt-link-freetext" href="mailto:stewart.bryant@gmail.com">mailto:stewart.bryant@gmail.com</a>] <br>
                  <b>Sent:</b> Thursday, January 25, 2018 4:32 AM<br>
                  <b>To:</b> Les Ginsberg (ginsberg)
                  <a class="moz-txt-link-rfc2396E" href="mailto:ginsberg@cisco.com">&lt;ginsberg@cisco.com&gt;</a>; Acee Lindem (acee)
                  <a class="moz-txt-link-rfc2396E" href="mailto:acee@cisco.com">&lt;acee@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>Cc:</b> OSPF List <a class="moz-txt-link-rfc2396E" href="mailto:ospf@ietf.org">&lt;ospf@ietf.org&gt;</a>;
                  <a class="moz-txt-link-abbreviated" href="mailto:isis-wg@ietf.org">isis-wg@ietf.org</a><br>
                  <b>Subject:</b> Re: [Isis-wg] Link-State Routing WG
                  charter</span><o:p></o:p></p>
            </div>
          </div>
          <p class="MsoNormal" style="margin-left:1.0in"> <o:p></o:p></p>
          <p style="margin-left:1.0in"> <o:p></o:p></p>
          <p style="margin-left:1.0in">Les<o:p></o:p></p>
          <p style="margin-left:1.0in">I agree wrt L2<o:p></o:p></p>
          <p style="margin-left:1.0in">Isn't another focus collecting
            the information to feed into an SDN controller via BGP-LS?
            That is really network layer  state collection rather than
            routing in the traditional sense.<o:p></o:p></p>
          <p style="margin-left:1.0in"><span style="color:#1F497D"> </span><o:p></o:p></p>
          <p style="margin-left:1.0in"><b><i><span style="color:#1F497D">[Les:]
                  Please do not propose such language. This raises the
                  old discussion about using the IGPs as a transport for
                  “just about anything”.</span></i></b><o:p></o:p></p>
          <p style="margin-left:1.0in"><b><i><span style="color:#1F497D">We
                  long ago agreed that TE related information was
                  “routing information” – if for no other reason than it
                  was grandfathered in. But this does not alter the
                  IGP’s focus on routing.</span></i></b><o:p></o:p></p>
          <p style="margin-left:1.0in"><b><i><span style="color:#1F497D">I
                  know we “stretch” the definition with things like MSD
                  and S-BFD discriminators, but I see these as carefully
                  considered choices – and ones w modest impact.</span></i></b><o:p></o:p></p>
          <p style="margin-left:1.0in"><b><i><span style="color:#1F497D">Institutionalizing
                  the IGPs as an “SDN Distribution Protocol” is not
                  something I want in the charter.</span></i></b><o:p></o:p></p>
          <p style="margin-left:1.0in"><b><i><span style="color:#1F497D">  
                  Les</span></i></b><o:p></o:p></p>
          <p style="margin-left:1.0in"><b><i><span style="color:#1F497D"> </span></i></b><o:p></o:p></p>
          <p style="margin-left:1.0in">- Stewart<o:p></o:p></p>
          <p class="MsoNormal" style="margin-left:1.0in"> <o:p></o:p></p>
          <div>
            <p class="MsoNormal" style="margin-left:1.0in">On 24/01/2018
              23:09, Les Ginsberg (ginsberg) wrote:<o:p></o:p></p>
          </div>
          <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
            <p class="MsoNormal" style="margin-left:1.0in"><span
                style="color:#1F497D">It occurred to me after sending
                this that perhaps a better statement as regards IS-IS
                would be:</span><o:p></o:p></p>
            <p class="MsoNormal" style="margin-left:1.0in"><span
                style="color:#1F497D"> </span><o:p></o:p></p>
            <p class="MsoNormal" style="margin-left:1.0in"><span
                style="color:#1F497D">“LSR’s work is focused on IP/IPv6
                and Layer 2 routing…”</span><o:p></o:p></p>
            <p class="MsoNormal" style="margin-left:1.0in"><span
                style="color:#1F497D"> </span><o:p></o:p></p>
            <p class="MsoNormal" style="margin-left:1.0in"><span
                style="color:#1F497D">though admittedly there isn’t much
                going on as regards Layer2 and IS-IS at the moment. </span><o:p></o:p></p>
            <p class="MsoNormal" style="margin-left:1.0in"><span
                style="color:#1F497D"> </span><o:p></o:p></p>
            <p class="MsoNormal" style="margin-left:1.0in"><span
                style="color:#1F497D">   Les</span><o:p></o:p></p>
            <p class="MsoNormal" style="margin-left:1.0in"><span
                style="color:#1F497D"> </span><o:p></o:p></p>
            <p class="MsoNormal" style="margin-left:1.0in"><span
                style="color:#1F497D"> </span><o:p></o:p></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" style="margin-left:1.0in"><b><span
                        style="color:windowtext">From:</span></b><span
                      style="color:windowtext"> Isis-wg [<a
                        href="mailto:isis-wg-bounces@ietf.org"
                        moz-do-not-send="true">mailto:isis-wg-bounces@ietf.org</a>]
                      <b>On Behalf Of </b>Les Ginsberg (ginsberg)<br>
                      <b>Sent:</b> Wednesday, January 24, 2018 2:33 PM<br>
                      <b>To:</b> Stewart Bryant <a
                        href="mailto:stewart.bryant@gmail.com"
                        moz-do-not-send="true">&lt;stewart.bryant@gmail.com&gt;</a>;
                      Acee Lindem (acee) <a
                        href="mailto:acee@cisco.com"
                        moz-do-not-send="true">&lt;acee@cisco.com&gt;</a>;
                      Alia Atlas <a href="mailto:akatlas@gmail.com"
                        moz-do-not-send="true">&lt;akatlas@gmail.com&gt;</a><br>
                      <b>Cc:</b> OSPF List <a
                        href="mailto:ospf@ietf.org"
                        moz-do-not-send="true">&lt;ospf@ietf.org&gt;</a>;
                      <a href="mailto:isis-wg@ietf.org"
                        moz-do-not-send="true">isis-wg@ietf.org</a><br>
                      <b>Subject:</b> Re: [Isis-wg] Link-State Routing
                      WG charter</span><o:p></o:p></p>
                </div>
              </div>
              <p class="MsoNormal" style="margin-left:1.0in"> <o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D">Since a charter only provides a
                  general definition of the work that falls within the
                  purview of the WG it requires some adjunct to keep
                  track of the current priorities.</span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D">That could be the list of
                  milestones (which OSPF has regularly maintained – but
                  IS-IS has not) – or it could simply be the list of
                  active WG documents.</span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D">I just don’t see that we should
                  expect the charter to express “work in progress” now –
                  or in the future.</span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D">Alia – do you think the
                  statement about IS-IS:</span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D">“LSR’s work is focused on IP
                  routing…”</span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D">Could be improved by saying</span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D">“LSR’s work is focused on
                  IP/IPv6 routing…”</span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D">???</span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D">   Les</span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D"> </span><o:p></o:p></p>
              <p class="MsoNormal" style="margin-left:1.0in"><span
                  style="color:#1F497D"> </span><o:p></o:p></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" style="margin-left:1.0in"><b><span
                          style="color:windowtext">From:</span></b><span
                        style="color:windowtext"> Isis-wg [<a
                          href="mailto:isis-wg-bounces@ietf.org"
                          moz-do-not-send="true">mailto:isis-wg-bounces@ietf.org</a>]
                        <b>On Behalf Of </b>Stewart Bryant<br>
                        <b>Sent:</b> Wednesday, January 24, 2018 10:01
                        AM<br>
                        <b>To:</b> Acee Lindem (acee) &lt;<a
                          href="mailto:acee@cisco.com"
                          moz-do-not-send="true">acee@cisco.com</a>&gt;;
                        Alia Atlas &lt;<a
                          href="mailto:akatlas@gmail.com"
                          moz-do-not-send="true">akatlas@gmail.com</a>&gt;<br>
                        <b>Cc:</b> OSPF List &lt;<a
                          href="mailto:ospf@ietf.org"
                          moz-do-not-send="true">ospf@ietf.org</a>&gt;;
                        <a href="mailto:isis-wg@ietf.org"
                          moz-do-not-send="true">isis-wg@ietf.org</a><br>
                        <b>Subject:</b> Re: [Isis-wg] Link-State Routing
                        WG charter</span><o:p></o:p></p>
                  </div>
                </div>
                <p class="MsoNormal" style="margin-left:1.0in"> <o:p></o:p></p>
                <p style="margin-left:1.0in">Yes that fixes that.<o:p></o:p></p>
                <p style="margin-left:1.0in">How about:<o:p></o:p></p>
                <p style="margin-left:1.0in">s/The following topics are
                  expected to be an initial focus:/ In addition to
                  ongoing maintenance, the following topics are expected
                  to be an initial focus:/<o:p></o:p></p>
                <p style="margin-left:1.0in">I am just concerned that we
                  need not to loose focus on work in progress.<o:p></o:p></p>
                <p style="margin-left:1.0in">- Stewart<o:p></o:p></p>
                <p class="MsoNormal" style="margin-left:1.0in"> <o:p></o:p></p>
                <div>
                  <p class="MsoNormal" style="margin-left:1.0in">On
                    24/01/2018 17:54, Acee Lindem (acee) wrote:<o:p></o:p></p>
                </div>
                <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
                  <p class="MsoNormal" style="margin-left:1.0in">How
                    about:<o:p></o:p></p>
                  <p class="MsoNormal" style="margin-left:1.0in"> <o:p></o:p></p>
                  <p class="MsoNormal" style="margin-left:1.0in"><span
                      style="font-size:10.0pt;font-family:&quot;Courier
                      New&quot;,serif">LSR will coordinate with CCAMP
                      and BIER on their extensions to the LSR IGPs as</span><o:p></o:p></p>
                  <p class="MsoNormal" style="margin-left:1.0in"><span
                      style="font-size:10.0pt;font-family:&quot;Courier
                      New&quot;,serif">applicable to LSV protocol
                      operation and scale. </span><o:p></o:p></p>
                  <p class="MsoNormal" style="margin-left:1.0in"> <o:p></o:p></p>
                  <p class="MsoNormal" style="margin-left:1.0in">Thanks,<o:p></o:p></p>
                  <p class="MsoNormal" style="margin-left:1.0in">Acee <o:p></o:p></p>
                  <p class="MsoNormal" style="margin-left:1.0in"> <o:p></o:p></p>
                  <div style="border:none;border-top:solid #B5C4DF
                    1.0pt;padding:3.0pt 0in 0in 0in">
                    <p class="MsoNormal" style="margin-left:1.5in"><b><span
                          style="font-size:12.0pt">From: </span></b><span
                        style="font-size:12.0pt">Isis-wg </span><a
                        href="mailto:isis-wg-bounces@ietf.org"
                        moz-do-not-send="true"><span
                          style="font-size:12.0pt">&lt;isis-wg-bounces@ietf.org&gt;</span></a><span
                        style="font-size:12.0pt"> on behalf of Alia
                        Atlas </span><a href="mailto:akatlas@gmail.com"
                        moz-do-not-send="true"><span
                          style="font-size:12.0pt">&lt;akatlas@gmail.com&gt;</span></a><span
                        style="font-size:12.0pt"><br>
                        <b>Date: </b>Wednesday, January 24, 2018 at
                        12:42 PM<br>
                        <b>To: </b>Stewart Bryant </span><a
                        href="mailto:stewart.bryant@gmail.com"
                        moz-do-not-send="true"><span
                          style="font-size:12.0pt">&lt;stewart.bryant@gmail.com&gt;</span></a><span
                        style="font-size:12.0pt"><br>
                        <b>Cc: </b>OSPF WG List </span><a
                        href="mailto:ospf@ietf.org"
                        moz-do-not-send="true"><span
                          style="font-size:12.0pt">&lt;ospf@ietf.org&gt;</span></a><span
                        style="font-size:12.0pt">, </span><a
                        href="mailto:isis-wg@ietf.org"
                        moz-do-not-send="true"><span
                          style="font-size:12.0pt">"isis-wg@ietf.org"</span></a><span
                        style="font-size:12.0pt"> </span><a
                        href="mailto:isis-wg@ietf.org"
                        moz-do-not-send="true"><span
                          style="font-size:12.0pt">&lt;isis-wg@ietf.org&gt;</span></a><span
                        style="font-size:12.0pt"><br>
                        <b>Subject: </b>Re: [Isis-wg] Link-State
                        Routing WG charter</span><o:p></o:p></p>
                  </div>
                  <div>
                    <p class="MsoNormal" style="margin-left:1.5in"> <o:p></o:p></p>
                  </div>
                  <div>
                    <p class="MsoNormal" style="margin-left:1.5in">Hi
                      Stewart, <o:p></o:p></p>
                    <div>
                      <p class="MsoNormal" style="margin-left:1.5in"> <o:p></o:p></p>
                    </div>
                    <div>
                      <p class="MsoNormal" style="margin-left:1.5in">Thanks
                        for the quick feedback.  Feel free to provide
                        suggestions for text changes if you have them.<o:p></o:p></p>
                    </div>
                    <div>
                      <p class="MsoNormal" style="margin-left:1.5in">You've
                        certainly written enough charters :-)<o:p></o:p></p>
                    </div>
                    <div>
                      <p class="MsoNormal" style="margin-left:1.5in"> <o:p></o:p></p>
                    </div>
                    <div>
                      <p class="MsoNormal" style="margin-left:1.5in">Regards,<o:p></o:p></p>
                    </div>
                    <div>
                      <p class="MsoNormal" style="margin-left:1.5in">Alia<o:p></o:p></p>
                    </div>
                  </div>
                  <div>
                    <p class="MsoNormal" style="margin-left:1.5in"> <o:p></o:p></p>
                    <div>
                      <p class="MsoNormal" style="margin-left:1.5in">On
                        Wed, Jan 24, 2018 at 12:32 PM, Stewart Bryant
                        &lt;<a href="mailto:stewart.bryant@gmail.com"
                          target="_blank" moz-do-not-send="true">stewart.bryant@gmail.com</a>&gt;
                        wrote:<o:p></o:p></p>
                      <blockquote style="border:none;border-left:solid
                        #CCCCCC 1.0pt;padding:0in 0in 0in
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
                        <div>
                          <p style="margin-left:1.5in">Alia,<o:p></o:p></p>
                          <p class="MsoNormal" style="margin-left:1.5in">I
                            think that this merger is long overdue, and
                            hopefully it will help new features to be
                            written in an aligned way.<br>
                            <br>
                            I think the remit to perform general
                            maintenance should slightly clarified since
                            the way the charter is written they look
                            like they are at a lower priority than the
                            enumerated list.<br>
                            <br>
                            I would have thought that "LSR can
                            coordinate with CCAMP and BIER on their
                            extensions " should have been more
                            directive. <br>
                            <br>
                            - Stewart <o:p></o:p></p>
                          <div>
                            <div>
                              <p class="MsoNormal"
style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:1.5in"> <o:p></o:p></p>
                              <div>
                                <p class="MsoNormal"
                                  style="margin-left:1.5in">On
                                  24/01/2018 17:18, Alia Atlas wrote:<o:p></o:p></p>
                              </div>
                            </div>
                          </div>
                          <blockquote
                            style="margin-top:5.0pt;margin-bottom:5.0pt">
                            <div>
                              <div>
                                <div>
                                  <p class="MsoNormal"
                                    style="margin-left:1.5in">Here is
                                    the proposed charter for the LSR
                                    working group <o:p></o:p></p>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:1.5in">that
                                      will be created from the SPF and
                                      ISIS working groups.<o:p></o:p></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:1.5in"> <o:p></o:p></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:1.5in">This is
                                      scheduled for internal review for
                                      the IESG telechat on February 8.<o:p></o:p></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:1.5in"> <o:p></o:p></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:1.5in"><a
                                        href="https://datatracker.ietf.org/doc/charter-ietf-lsr/"
                                        target="_blank"
                                        moz-do-not-send="true">https://datatracker.ietf.org/doc/charter-ietf-lsr/</a><o:p></o:p></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:1.5in"> <o:p></o:p></p>
                                  </div>
                                  <div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in">The
                                        Link-State Routing (LSR) Working
                                        Group is chartered to document
                                        current protocol implementation
                                        practices and improvements,
                                        protocol usage scenarios,
                                        maintenance and extensions of
                                        link-state routing interior
                                        gateway protocols (IGPs) with a
                                        focus on IS-IS, OSPFv2, and
                                        OSPFv3.  The LSR Working Group
                                        is formed by merging the isis
                                        and ospf WGs and will take on
                                        all their existing adopted work
                                        at the time of chartering.<o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in"> <o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in">IS-IS
                                        is an IGP specified and
                                        standardized by ISO through ISO
                                        10589:2002 and additional RFC
                                        standards with extensions to
                                        support IP that has been
                                        deployed in the Internet for
                                        decades.  For the IS-IS
                                        protocol, LSR’s work is focused
                                        on IP routing, currently based
                                        on the agreement in RFC 3563
                                        with ISO/JTC1/SC6. The LSR WG
                                        will interact with other
                                        standards bodies that have
                                        responsible for standardizing
                                        IS-IS.<o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in"> <o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in">OSPFv2
                                        [RFC 2328 and extensions], is an
                                        IGP that has been deployed in
                                        the Internet for decades. OSPFv3
                                        [RFC5340 and extensions]
                                        provides OSPF for IPv6 and IPv4
                                        [RFC5838] which can be delivered
                                        over IPv6 or IPv4 [RFC 7949].<o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in"> <o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in">The
                                        LSR Working Group will generally
                                        manage its specific work items
                                        by milestones agreed with the
                                        responsible Area Director.<o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in"> <o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in">The
                                        following topics are expected to
                                        be an initial focus:<o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in"> <o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in">1)
                                        Improving OSPF support for IPv6
                                        and extensions using OSPFv3 LSA
                                        Extendibility.<o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in">2)
                                        Extensions needed for Segment
                                        Routing and associated
                                        architectural changes<o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in">3)
                                        YANG models for IS-IS, OSPFv2,
                                        and OSPFv3 and extensions<o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in">4)
                                        Extensions for
                                        source-destination routing
                                        [draft-ietf-rtgwg-dst-src-routing]<o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in">5)
                                        Potentially, extensions to
                                        better support specific network
                                        topologies such as <o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in">ones
                                        commonly used in data centers.<o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in"> <o:p></o:p></p>
                                    </div>
                                    <div>
                                      <p class="MsoNormal"
                                        style="margin-left:1.5in">The
                                        Link-State Routing (LSR) Working
                                        Group will coordinate with other
                                        working groups, such as RTGWG,
                                        SPRING, MPLS, TEAS, V6OPS, and
                                        6MAN, to understand the need for
                                        extensions and to confirm that
                                        the planned work meets the
                                        needs.  LSR can coordinate with
                                        CCAMP and BIER on their
                                        extensions to the LSR IGPs as
                                        useful.  LSR may coordinate with
                                        other WGs as needed.<o:p></o:p></p>
                                    </div>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:1.5in"> <o:p></o:p></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:1.5in">Regards,<o:p></o:p></p>
                                  </div>
                                  <div>
                                    <p class="MsoNormal"
                                      style="margin-left:1.5in">Alia<o:p></o:p></p>
                                  </div>
                                </div>
                                <p class="MsoNormal"
style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:1.5in"><br>
                                  <br>
                                  <br>
                                  <br>
                                  <br>
                                  <br>
                                  <o:p></o:p></p>
                              </div>
                            </div>
                            <pre style="margin-left:1.5in">_______________________________________________<o:p></o:p></pre>
                            <pre style="margin-left:1.5in">Isis-wg mailing list<o:p></o:p></pre>
                            <pre style="margin-left:1.5in"><a href="mailto:Isis-wg@ietf.org" target="_blank" moz-do-not-send="true">Isis-wg@ietf.org</a><o:p></o:p></pre>
                            <pre style="margin-left:1.5in"><a href="https://www.ietf.org/mailman/listinfo/isis-wg" target="_blank" moz-do-not-send="true">https://www.ietf.org/mailman/listinfo/isis-wg</a><o:p></o:p></pre>
                          </blockquote>
                          <p class="MsoNormal" style="margin-left:1.5in"> <o:p></o:p></p>
                        </div>
                      </blockquote>
                    </div>
                    <p class="MsoNormal" style="margin-left:1.5in"> <o:p></o:p></p>
                  </div>
                </blockquote>
                <p class="MsoNormal" style="margin-left:1.0in"><span
                    style="font-size:12.0pt;font-family:&quot;Times New
                    Roman&quot;,serif"> </span><o:p></o:p></p>
              </div>
            </div>
          </blockquote>
          <p class="MsoNormal" style="margin-left:1.0in"><span
              style="font-size:12.0pt;font-family:&quot;Times New
              Roman&quot;,serif"> </span><o:p></o:p></p>
        </div>
        <p class="MsoNormal"><span style="color:windowtext">_______________________________________________
            OSPF mailing list <a class="moz-txt-link-abbreviated" href="mailto:OSPF@ietf.org">OSPF@ietf.org</a>
            <a class="moz-txt-link-freetext" href="https://www.ietf.org/mailman/listinfo/ospf">https://www.ietf.org/mailman/listinfo/ospf</a> <o:p></o:p></span></p>
      </div>
    </blockquote>
    <br>
  </body>
</html>

--------------B0CD4264C72697275D1D35E6--


From nobody Fri Jan 26 07:03:10 2018
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Subject: [OSPF] I-D Action: draft-ietf-ospf-ospfv3-segment-routing-extensions-11.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 Open Shortest Path First IGP WG of the IETF.

        Title           : OSPFv3 Extensions for Segment Routing
        Authors         : Peter Psenak
                          Clarence Filsfils
                          Stefano Previdi
                          Hannes Gredler
                          Rob Shakir
                          Wim Henderickx
                          Jeff Tantsura
	Filename        : draft-ietf-ospf-ospfv3-segment-routing-extensions-11.txt
	Pages           : 28
	Date            : 2018-01-26

Abstract:
   Segment Routing (SR) allows a flexible definition of end-to-end paths
   within IGP topologies by encoding paths as sequences of topological
   sub-paths, called "segments".  These segments are advertised by the
   link-state routing protocols (IS-IS and OSPF).

   This draft describes the OSPFv3 extensions required for Segment
   Routing.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-ospfv3-segment-routing-extensions/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-ospfv3-segment-routing-extensions-11
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-ospfv3-segment-routing-extensions-11

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-ospfv3-segment-routing-extensions-11


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

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


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Subject: Re: [OSPF] I-D Action: draft-ietf-ospf-ospfv3-segment-routing-extensions-11.txt
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Hi,

an updated OSPFv3 SR draft has been posted.

This is a significant rewrite, please read and provide comments.

Summary of the changes:

1. clarified that this draft only specifies the SR extension for MPLS 
data plane. SRv6 extension will be specified in a different document. As 
a result section 3.5 (SR-Forwarding Capabilities) has been removed.

2. SID/Label Sub-TLV code point changed fro 3 to 7, because 3 has been 
defined in draft-ietf-ospf-ospfv3-lsa-extend-23 for Route Tag sub-TLV.

3. SR Local Block Sub-TLV code point changed from 12 to 14 and SRMS 
Preference Sub-TLV code point changed from 13 to 15. These values are 
sharing the same registry with OSPF2 and original values has been taken 
for other extensions.

4. Address Family in OSPFv3 Extended Prefix Range TLV has been defined 
for both IPv4 and IPv6 unicast, IPv4 taking the value 0 and IPv6 taking 
the value 1 (changed from 0). IPv4 AF was added to support the IPv4 
multi-instance case. Value 0 is now consistently used in both OSPFv2 and 
OSPFv3 SR drafts for IPv4 AF.

5 section 6 (SID/Label Binding Sub-TLV) has been removed, similar to 
what has been done for OSPFv2 SR draft.

6 Security Consideration section has been added.

7. References have been updated

8. lots of comments that were addressed in OSPFv2 SR draft during the 
RTGDIR, OPSDIR, GENART, etc., reviews have been incorporated. OSPFv2 and 
OSPFv3 drafts are now back in sync.

thanks,
Peter


On 26/01/18 16:03 , 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 Open Shortest Path First IGP WG of the IETF.
>
>          Title           : OSPFv3 Extensions for Segment Routing
>          Authors         : Peter Psenak
>                            Clarence Filsfils
>                            Stefano Previdi
>                            Hannes Gredler
>                            Rob Shakir
>                            Wim Henderickx
>                            Jeff Tantsura
> 	Filename        : draft-ietf-ospf-ospfv3-segment-routing-extensions-11.txt
> 	Pages           : 28
> 	Date            : 2018-01-26
>
> Abstract:
>     Segment Routing (SR) allows a flexible definition of end-to-end paths
>     within IGP topologies by encoding paths as sequences of topological
>     sub-paths, called "segments".  These segments are advertised by the
>     link-state routing protocols (IS-IS and OSPF).
>
>     This draft describes the OSPFv3 extensions required for Segment
>     Routing.
>
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-ospf-ospfv3-segment-routing-extensions/
>
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-ospf-ospfv3-segment-routing-extensions-11
> https://datatracker.ietf.org/doc/html/draft-ietf-ospf-ospfv3-segment-routing-extensions-11
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-ospfv3-segment-routing-extensions-11
>
>
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
>
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>
> _______________________________________________
> OSPF mailing list
> OSPF@ietf.org
> https://www.ietf.org/mailman/listinfo/ospf
> .
>


From nobody Sun Jan 28 22:04:32 2018
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Subject: [OSPF] I-D Action: draft-ietf-ospf-ospfv2-hbit-04.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Open Shortest Path First IGP WG of the IETF.

        Title           : H-bit Support for OSPFv2
        Authors         : Keyur Patel
                          Padma Pillay-Esnault
                          Manish Bhardwaj
                          Serpil Bayraktar
	Filename        : draft-ietf-ospf-ospfv2-hbit-04.txt
	Pages           : 8
	Date            : 2018-01-28

Abstract:
   OSPFv3 defines an option field for router-LSAs known as a R-bit in
   RFC5340.  If the R-bit is clear, an OSPFv3 router can participate in
   OSPF topology distribution without acting as a forwarder to forward
   the transit traffic.  In such cases, an OSPF router would only accept
   traffic intended for local delivery.  This draft defines R-bit
   functionality for OSPFv2 defined in RFC2328.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-ospfv2-hbit/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-ospfv2-hbit-04
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-ospfv2-hbit-04

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-ospfv2-hbit-04


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

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


From nobody Mon Jan 29 08:22:14 2018
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Subject: [OSPF] Protocol Action: 'OSPFv3 LSA Extendibility' to Proposed Standard (draft-ietf-ospf-ospfv3-lsa-extend-23.txt)
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The IESG has approved the following document:
- 'OSPFv3 LSA Extendibility'
  (draft-ietf-ospf-ospfv3-lsa-extend-23.txt) as Proposed Standard

This document is the product of the Open Shortest Path First IGP 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-ospf-ospfv3-lsa-extend/





Technical Summary

  This document extends the OSPFv3 LSA format by encoding the existing 
  OSPFv3 LSA information in Type-Length-Value (TLV) tuples and allowing
  advertisement of additional information with additional TLVs.  Backward
  compatibility mechanisms are also described.

Working Group Summary

  There has been significant discussion of the draft by the authors and 
  the vendors implementing the draft (Nokia and Huawei). There have been 
  numerous iterations and the backward compatibility scenarios have been 
  simplified.

Document Quality

   The document has been implemented by a couple vendors and several 
  OSPFv3 extensions are based on this document.  It has been stable
  for more than a year with only a couple minor encoding corrections.

Personnel

  Peter Psenak is the Document Shepherd.
  Alia Atlas is the Responsible Area Director.


From nobody Tue Jan 30 05:11:21 2018
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Subject: [OSPF] I-D Action: draft-ietf-ospf-te-link-attr-reuse-03.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 Open Shortest Path First IGP WG of the IETF.

        Title           : OSPFv2 Link Traffic Engineering (TE) Attribute Reuse
        Authors         : Peter Psenak
                          Acee Lindem
                          Les Ginsberg
                          Wim Henderickx
                          Jeff Tantsura
                          Hannes Gredler
                          John Drake
	Filename        : draft-ietf-ospf-te-link-attr-reuse-03.txt
	Pages           : 16
	Date            : 2018-01-30

Abstract:
   Various link attributes have been defined in OSPFv2 in the context of
   the MPLS Traffic Engineering (TE) and GMPLS.  Many of these link
   attributes can be used for purposes other than MPLS Traffic
   Engineering or GMPLS.  This documents defines how to distribute such
   attributes in OSPFv2 for applications other than MPLS Traffic
   Engineering or GMPLS purposes.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-te-link-attr-reuse/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-te-link-attr-reuse-03
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-te-link-attr-reuse-03

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-te-link-attr-reuse-03


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

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


From nobody Tue Jan 30 09:21:31 2018
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From: Shraddha Hegde <shraddha@juniper.net>
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CC: The IESG <iesg@ietf.org>, OSPF List <ospf@ietf.org>, "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "TEAS WG (teas@ietf.org)" <teas@ietf.org>
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From: Shraddha Hegde <shraddha@juniper.net>
To: "Ketan Talaulikar (ketant)" <ketant@cisco.com>, Alvaro Retana <aretana.ietf@gmail.com>, The IESG <iesg@ietf.org>
CC: "ospf@ietf.org" <ospf@ietf.org>, "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>
Thread-Topic: Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/Tu-AOnNoXgir8qh2L36smZ6ghOU>
Subject: Re: [OSPF] Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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Ketan,

Thanks for comments.
Pls see inline...

-----Original Message-----
From: Ketan Talaulikar (ketant) [mailto:ketant@cisco.com]=20
Sent: Thursday, January 25, 2018 1:58 PM
To: Shraddha Hegde <shraddha@juniper.net>; Alvaro Retana <aretana.ietf@gmai=
l.com>; The IESG <iesg@ietf.org>
Cc: ospf@ietf.org; draft-ietf-ospf-link-overload@ietf.org; ospf-chairs@ietf=
.org
Subject: RE: Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-=
13: (with COMMENT)

Hi Shraddha,

A few comments and observations in the ver 14 and apologies for not providi=
ng some of them earlier, but I had a closer review after looking at Alvaro'=
s comments and many improvements have happened recently.

Related to BGP-LS TLV:
For sec 4.5 - please mention the type here since the IANA section would get=
 taken off by RFC editor. While you do refer to RFC7752 sec 3.1 for the TLV=
 - I think it would be more reader friendly to describe the TLV and the cod=
e point in this section inline like the OSPF TLVs.
<Shraddha> OK updated in new version

For sec 10, the BGP-LS registry being referred to is wrong and it should be=
 " BGP-LS Node Descriptor, Link Descriptor, Prefix Descriptor, and Attribut=
e TLVs" and the suggested codepoint is already taken so I would suggest to =
request for 1121. I believe this was pointed out during the early allocatio=
n call but seems like it got missed out so could you please correct/update?
<Shraddha>ok. updated latest version.

https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.iana.org_assignm=
ents_bgp-2Dls-2Dparameters_bgp-2Dls-2Dparameters.xhtml&d=3DDwIFAg&c=3DHAkYu=
h63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bp=
bBaNqzCNrng&m=3DXBYEEARnw7lDAsfkNEsBkAkyVwYGvQ-2jj6E-wcs7TM&s=3DEL7ViyIcLwx=
x16_SC9EcrtseFsVFllPPOAYXwlPcUGk&e=3D=20

Suggest making the section describing Maximum TE Metric before the current =
Sec 5 - Elements of procedure so the flow is better for the reader.
<Shraddha> We will use 0xffffffff so the definition is going away in new ve=
rsion.

Sec 5.1=20

Instead of using SHOULD for TE metric, it would be better to qualify as " W=
hen TE is enabled, the TE metric of the link MUST be set to MAX-TE-METRIC (=
0xfffffffe) and the node MUST re-originate the corresponding TE Link Opaque=
 LSAs."
<Shraddha> I think there should be an option of not following procedures de=
fined in this document if traffic engineering applications don't need it (c=
hanging reverse side metric). I can't think of a usecase right now but I th=
ink this flexibility is needed.


s/ MAX-TE-METRIC (0xfffffffe).//

s/ The TE metric SHOULD be set / The TE metric of the link SHOULD be set
<Shraddha>ack

s/ link and set the metric to MaxLinkMetric / link and set its metric to Ma=
xLinkMetric
<Shraddha> ack

s/ The TE metric SHOULD be set to MAX-TE-METRIC (0xfffffffe) and the TE opa=
que LSA for the link SHOULD be re-originated with new value./ Similarly, wh=
en TE is enabled, the remote node MUST set the TE metric for the link to MA=
X-TE-METRIC (0xfffffffe) and MUST re-originate the TE Link Opaque LSA for t=
he link with new value.
<Shraddha> ack except the MUST.

A couple of sentences describing the different LSAs that come into play for=
 OSPFv3 would be helpful in this section as well. Just as done in sec 3. Th=
e thing is that the OSPFv3 LSAs and especially it's equivalent TE LSAs are =
different. In fact RFC5329 is not being referred to as NORMATIVE and so doe=
s that imply we don't want to do similar action with TE metric in case of O=
SPFv3?. So it would be good to specify or clarify that part. Perhaps in gen=
eral at start of sec 5 so the text in the rest of sub-sections are link-typ=
e specifics and generic to OSPF without naming any LSAs there?

<Shraddha> refered RFC 5329 in section 5

Sec 5.4 Unnumbered interfaces
IMHO this text is very similar to Sec 4.7 which talks about how to identify=
 parallel links. Perhaps sec 5.4 should become Sec 4.8 since what is does i=
s explain how the correlation of links is done for unnumbered links. Altern=
ately, this explanation can be put under Sec 4.3 where the Local/Remote ID =
TLV is specified since this mechanism is going to be common for other use-c=
ase of this general purpose TLV.
<Shraddha> I think this section is needed as the previous section on Remote=
 IPv4 address does not talk about unnumbered interfaces

Thanks,
Ketan

-----Original Message-----
From: OSPF [mailto:ospf-bounces@ietf.org] On Behalf Of Shraddha Hegde
Sent: 25 January 2018 11:01
To: Alvaro Retana <aretana.ietf@gmail.com>; The IESG <iesg@ietf.org>
Cc: ospf@ietf.org; draft-ietf-ospf-link-overload@ietf.org; ospf-chairs@ietf=
.org
Subject: Re: [OSPF] Alvaro Retana's No Objection on draft-ietf-ospf-link-ov=
erload-13: (with COMMENT)

Alvaro,

Thanks for the review and comments.
Pls see inline..

Rgds
Shraddha

-----Original Message-----
From: Alvaro Retana [mailto:aretana.ietf@gmail.com]
Sent: Wednesday, January 24, 2018 11:27 PM
To: The IESG <iesg@ietf.org>
Cc: draft-ietf-ospf-link-overload@ietf.org; Acee Lindem <acee@cisco.com>; o=
spf-chairs@ietf.org; ospf@ietf.org
Subject: Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: =
(with COMMENT)

Alvaro Retana has entered the following ballot position for
draft-ietf-ospf-link-overload-13: 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 introduc=
tory paragraph, however.)


Please refer to https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.=
ietf.org_iesg_statement_discuss-2Dcriteria.html&d=3DDwICaQ&c=3DHAkYuh63rsuh=
r6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzC=
Nrng&m=3D2yotvig0Pod2iYz1kE1G9Yj72-TdzzWuw-Wi17D6TfU&s=3D8uPkIAPxrIiuVMLudg=
aSbVjvc-3iZNkLaXrmc6GJpZM&e=3D
for more information about IESG DISCUSS and COMMENT positions.


The document, along with other ballot positions, can be found here:
https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__datatracker.ietf.org=
_doc_draft-2Dietf-2Dospf-2Dlink-2Doverload_&d=3DDwICaQ&c=3DHAkYuh63rsuhr6Sc=
bfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng=
&m=3D2yotvig0Pod2iYz1kE1G9Yj72-TdzzWuw-Wi17D6TfU&s=3D5Dmkf-qOIfCiHPCyuj-sVN=
DcS904luv_ECpSb3D5HVM&e=3D



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

I debated about filing my first comment as a DISCUSS [1], but decided again=
st it because it should be very easy to solve.  The rest are non-blocking c=
omments.

(1) The following should be Normative references: rfc2119 and rfc6987 -- th=
is last one because MaxLinkMetric (which is defined there) is extensively u=
sed (as a MUST) throughout the document.
<Shraddha> OK

(2) Section 3. (Flooding Scope) provides information about the flooding sco=
pe, but only references for OSPFv2.  It would be nice if the references for=
 OSPFv3 were included there as well.
<Shraddha> OK

(3) Section 4.5. mentions that a "new TLV called Graceful-Link-Shutdown is =
defined" for BGP-LS, but there are no details on the format, etc.  The IANA=
 Considerations section suggests a value, not for a TLV but for an NLRI Typ=
e!
<Shraddha> OK. Refered section 3.1 of RFC 7752 and described the contents o=
f the TLV IANA section seems ok to me. Could you be more specific what need=
s to change?


   BGP-LS Link NLRI Registry [RFC7752]   >>>>>>>Registry

   i)Graceful-Link-Shutdown TLV - Suggested 1101 >>>>>>>TLV type



(4) Section 5: "The node that has the link to be taken out of service SHOUL=
D advertise the Graceful-Link-Shutdown sub-TLV..."  When would the node not=
 advertise the sub-TLV?  IOW, why is "MUST" not used?
<Shraddha> Thanks for pointing out. Changed to MUST.

(5) In 5.1: "MAX-TE-METRIC is a constant defined by this draft and set to 0=
xfffffffe."  Assuming that the intent is to define a new architectural cons=
tant... I would rather see this constant defined separately (in it's own se=
ction/sub-section with a formal definition) instead of "in passing" while d=
escribing how to use it (a la MaxLinkMetric in rfc6987).
<Shraddha> OK

(6) 5.1 says that the metrics "MUST be set to MaxLinkMetric...and SHOULD be=
 set to MAX-TE-METRIC".  Why is there a difference?
<Shraddha> TE is an optional feature so MAX-TE-METRIC needs to be set only =
when TE is enabled on the node.

(7) s/MAX_METRIC/MaxLinkMetric
<Shraddha> ok.

[1] https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.ietf.org_ies=
g_statement_discuss-2Dcriteria.html&d=3DDwICaQ&c=3DHAkYuh63rsuhr6Scbfh0UjBX=
eMK-ndb3voDTXcWzoCI&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng&m=3D2yo=
tvig0Pod2iYz1kE1G9Yj72-TdzzWuw-Wi17D6TfU&s=3D8uPkIAPxrIiuVMLudgaSbVjvc-3iZN=
kLaXrmc6GJpZM&e=3D


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From: Shraddha Hegde <shraddha@juniper.net>
To: Tim Chown <tim.chown@jisc.ac.uk>, "ops-dir@ietf.org" <ops-dir@ietf.org>
CC: "ospf@ietf.org" <ospf@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
Thread-Topic: Opsdir telechat review of draft-ietf-ospf-link-overload-13
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Subject: Re: [OSPF] Opsdir telechat review of draft-ietf-ospf-link-overload-13
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From: Shraddha Hegde <shraddha@juniper.net>
To: Ben Campbell <ben@nostrum.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>, Acee Lindem <acee@cisco.com>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "acee@cisco.com" <acee@cisco.com>, "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: Ben Campbell's No Record on draft-ietf-ospf-link-overload-13: (with COMMENT)
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Subject: Re: [OSPF] Ben Campbell's No Record on draft-ietf-ospf-link-overload-13: (with COMMENT)
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From: Shraddha Hegde <shraddha@juniper.net>
To: Benoit Claise <bclaise@cisco.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>, Acee Lindem <acee@cisco.com>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "acee@cisco.com" <acee@cisco.com>, "ospf@ietf.org" <ospf@ietf.org>, "tim.chown@jisc.ac.uk" <tim.chown@jisc.ac.uk>
Thread-Topic: Benoit Claise's No Objection on draft-ietf-ospf-link-overload-14: (with COMMENT)
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/lLzCfHG7_SPye-TSt1enk-bUAks>
Subject: Re: [OSPF] Benoit Claise's No Objection on draft-ietf-ospf-link-overload-14: (with COMMENT)
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From: Shraddha Hegde <shraddha@juniper.net>
To: Alvaro Retana <aretana.ietf@gmail.com>, The IESG <iesg@ietf.org>
CC: Acee Lindem <acee@cisco.com>, "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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Date: Wed, 31 Jan 2018 04:43:48 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ospf/J5FqbSX24jDeMdXnWh75HRywm_k>
Subject: Re: [OSPF] Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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From: "Ketan Talaulikar (ketant)" <ketant@cisco.com>
To: Shraddha Hegde <shraddha@juniper.net>, Alvaro Retana <aretana.ietf@gmail.com>, The IESG <iesg@ietf.org>
CC: "ospf@ietf.org" <ospf@ietf.org>, "draft-ietf-ospf-link-overload@ietf.org" <draft-ietf-ospf-link-overload@ietf.org>, "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>
Thread-Topic: Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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Subject: Re: [OSPF] Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: (with COMMENT)
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Hi Shraddha,

Thanks for addressing most of the comments and please see a couple of respo=
nses in-line below for the outstanding ones.

Thanks,
Ketan

-----Original Message-----
From: Shraddha Hegde [mailto:shraddha@juniper.net]=20
Sent: 31 January 2018 09:15
To: Ketan Talaulikar (ketant) <ketant@cisco.com>; Alvaro Retana <aretana.ie=
tf@gmail.com>; The IESG <iesg@ietf.org>
Cc: ospf@ietf.org; draft-ietf-ospf-link-overload@ietf.org; ospf-chairs@ietf=
.org
Subject: RE: Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-=
13: (with COMMENT)

Ketan,

Thanks for comments.
Pls see inline...

-----Original Message-----
From: Ketan Talaulikar (ketant) [mailto:ketant@cisco.com]
Sent: Thursday, January 25, 2018 1:58 PM
To: Shraddha Hegde <shraddha@juniper.net>; Alvaro Retana <aretana.ietf@gmai=
l.com>; The IESG <iesg@ietf.org>
Cc: ospf@ietf.org; draft-ietf-ospf-link-overload@ietf.org; ospf-chairs@ietf=
.org
Subject: RE: Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-=
13: (with COMMENT)

Hi Shraddha,

A few comments and observations in the ver 14 and apologies for not providi=
ng some of them earlier, but I had a closer review after looking at Alvaro'=
s comments and many improvements have happened recently.

Related to BGP-LS TLV:
For sec 4.5 - please mention the type here since the IANA section would get=
 taken off by RFC editor. While you do refer to RFC7752 sec 3.1 for the TLV=
 - I think it would be more reader friendly to describe the TLV and the cod=
e point in this section inline like the OSPF TLVs.
<Shraddha> OK updated in new version

For sec 10, the BGP-LS registry being referred to is wrong and it should be=
 " BGP-LS Node Descriptor, Link Descriptor, Prefix Descriptor, and Attribut=
e TLVs" and the suggested codepoint is already taken so I would suggest to =
request for 1121. I believe this was pointed out during the early allocatio=
n call but seems like it got missed out so could you please correct/update?
<Shraddha>ok. updated latest version.

https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.iana.org_assignm=
ents_bgp-2Dls-2Dparameters_bgp-2Dls-2Dparameters.xhtml&d=3DDwIFAg&c=3DHAkYu=
h63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bp=
bBaNqzCNrng&m=3DXBYEEARnw7lDAsfkNEsBkAkyVwYGvQ-2jj6E-wcs7TM&s=3DEL7ViyIcLwx=
x16_SC9EcrtseFsVFllPPOAYXwlPcUGk&e=3D=20

Suggest making the section describing Maximum TE Metric before the current =
Sec 5 - Elements of procedure so the flow is better for the reader.
<Shraddha> We will use 0xffffffff so the definition is going away in new ve=
rsion.

Sec 5.1=20

Instead of using SHOULD for TE metric, it would be better to qualify as " W=
hen TE is enabled, the TE metric of the link MUST be set to MAX-TE-METRIC (=
0xfffffffe) and the node MUST re-originate the corresponding TE Link Opaque=
 LSAs."
<Shraddha> I think there should be an option of not following procedures de=
fined in this document if traffic engineering applications don't need it (c=
hanging reverse side metric). I can't think of a usecase right now but I th=
ink this flexibility is needed.
[KT] This document brought in a key difference from the previous (i.e. RFC6=
987 & RFC5817) in that when OSPF (in general IGPs) signal a link graceful s=
hutdown/maintenance then it applies not just to the native IGP SPF but also=
 other applications that run on top of it and rely for topology and floodin=
g info - mainly TE. When the link (or even a node) is going to be brought d=
own for graceful shutdown/maintenance then I don't see how it is still goin=
g to be OK for TE to use it. In any case, perhaps SHOULD is a strong enough=
 statement but IMHO MUST would be more appropriate.


s/ MAX-TE-METRIC (0xfffffffe).//

s/ The TE metric SHOULD be set / The TE metric of the link SHOULD be set <S=
hraddha>ack

s/ link and set the metric to MaxLinkMetric / link and set its metric to Ma=
xLinkMetric <Shraddha> ack

s/ The TE metric SHOULD be set to MAX-TE-METRIC (0xfffffffe) and the TE opa=
que LSA for the link SHOULD be re-originated with new value./ Similarly, wh=
en TE is enabled, the remote node MUST set the TE metric for the link to MA=
X-TE-METRIC (0xfffffffe) and MUST re-originate the TE Link Opaque LSA for t=
he link with new value.
<Shraddha> ack except the MUST.

A couple of sentences describing the different LSAs that come into play for=
 OSPFv3 would be helpful in this section as well. Just as done in sec 3. Th=
e thing is that the OSPFv3 LSAs and especially it's equivalent TE LSAs are =
different. In fact RFC5329 is not being referred to as NORMATIVE and so doe=
s that imply we don't want to do similar action with TE metric in case of O=
SPFv3?. So it would be good to specify or clarify that part. Perhaps in gen=
eral at start of sec 5 so the text in the rest of sub-sections are link-typ=
e specifics and generic to OSPF without naming any LSAs there?

<Shraddha> refered RFC 5329 in section 5

Sec 5.4 Unnumbered interfaces
IMHO this text is very similar to Sec 4.7 which talks about how to identify=
 parallel links. Perhaps sec 5.4 should become Sec 4.8 since what is does i=
s explain how the correlation of links is done for unnumbered links. Altern=
ately, this explanation can be put under Sec 4.3 where the Local/Remote ID =
TLV is specified since this mechanism is going to be common for other use-c=
ase of this general purpose TLV.
<Shraddha> I think this section is needed as the previous section on Remote=
 IPv4 address does not talk about unnumbered interfaces
[KT] Agree that the text is definitely needed and I was only suggesting tha=
t it might be better placed as sec 4.8 or embedded in 4.3. This is perhaps =
more of an editorial nit than substance so I leave it to you.

Thanks,
Ketan

-----Original Message-----
From: OSPF [mailto:ospf-bounces@ietf.org] On Behalf Of Shraddha Hegde
Sent: 25 January 2018 11:01
To: Alvaro Retana <aretana.ietf@gmail.com>; The IESG <iesg@ietf.org>
Cc: ospf@ietf.org; draft-ietf-ospf-link-overload@ietf.org; ospf-chairs@ietf=
.org
Subject: Re: [OSPF] Alvaro Retana's No Objection on draft-ietf-ospf-link-ov=
erload-13: (with COMMENT)

Alvaro,

Thanks for the review and comments.
Pls see inline..

Rgds
Shraddha

-----Original Message-----
From: Alvaro Retana [mailto:aretana.ietf@gmail.com]
Sent: Wednesday, January 24, 2018 11:27 PM
To: The IESG <iesg@ietf.org>
Cc: draft-ietf-ospf-link-overload@ietf.org; Acee Lindem <acee@cisco.com>; o=
spf-chairs@ietf.org; ospf@ietf.org
Subject: Alvaro Retana's No Objection on draft-ietf-ospf-link-overload-13: =
(with COMMENT)

Alvaro Retana has entered the following ballot position for
draft-ietf-ospf-link-overload-13: 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 introduc=
tory paragraph, however.)


Please refer to https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.=
ietf.org_iesg_statement_discuss-2Dcriteria.html&d=3DDwICaQ&c=3DHAkYuh63rsuh=
r6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzC=
Nrng&m=3D2yotvig0Pod2iYz1kE1G9Yj72-TdzzWuw-Wi17D6TfU&s=3D8uPkIAPxrIiuVMLudg=
aSbVjvc-3iZNkLaXrmc6GJpZM&e=3D
for more information about IESG DISCUSS and COMMENT positions.


The document, along with other ballot positions, can be found here:
https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__datatracker.ietf.org=
_doc_draft-2Dietf-2Dospf-2Dlink-2Doverload_&d=3DDwICaQ&c=3DHAkYuh63rsuhr6Sc=
bfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DNyjLsr7JA7mvpCJa0YmPdVKcmMXJ31bpbBaNqzCNrng=
&m=3D2yotvig0Pod2iYz1kE1G9Yj72-TdzzWuw-Wi17D6TfU&s=3D5Dmkf-qOIfCiHPCyuj-sVN=
DcS904luv_ECpSb3D5HVM&e=3D



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

I debated about filing my first comment as a DISCUSS [1], but decided again=
st it because it should be very easy to solve.  The rest are non-blocking c=
omments.

(1) The following should be Normative references: rfc2119 and rfc6987 -- th=
is last one because MaxLinkMetric (which is defined there) is extensively u=
sed (as a MUST) throughout the document.
<Shraddha> OK

(2) Section 3. (Flooding Scope) provides information about the flooding sco=
pe, but only references for OSPFv2.  It would be nice if the references for=
 OSPFv3 were included there as well.
<Shraddha> OK

(3) Section 4.5. mentions that a "new TLV called Graceful-Link-Shutdown is =
defined" for BGP-LS, but there are no details on the format, etc.  The IANA=
 Considerations section suggests a value, not for a TLV but for an NLRI Typ=
e!
<Shraddha> OK. Refered section 3.1 of RFC 7752 and described the contents o=
f the TLV IANA section seems ok to me. Could you be more specific what need=
s to change?


   BGP-LS Link NLRI Registry [RFC7752]   >>>>>>>Registry

   i)Graceful-Link-Shutdown TLV - Suggested 1101 >>>>>>>TLV type



(4) Section 5: "The node that has the link to be taken out of service SHOUL=
D advertise the Graceful-Link-Shutdown sub-TLV..."  When would the node not=
 advertise the sub-TLV?  IOW, why is "MUST" not used?
<Shraddha> Thanks for pointing out. Changed to MUST.

(5) In 5.1: "MAX-TE-METRIC is a constant defined by this draft and set to 0=
xfffffffe."  Assuming that the intent is to define a new architectural cons=
tant... I would rather see this constant defined separately (in it's own se=
ction/sub-section with a formal definition) instead of "in passing" while d=
escribing how to use it (a la MaxLinkMetric in rfc6987).
<Shraddha> OK

(6) 5.1 says that the metrics "MUST be set to MaxLinkMetric...and SHOULD be=
 set to MAX-TE-METRIC".  Why is there a difference?
<Shraddha> TE is an optional feature so MAX-TE-METRIC needs to be set only =
when TE is enabled on the node.

(7) s/MAX_METRIC/MaxLinkMetric
<Shraddha> ok.

[1] https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.ietf.org_ies=
g_statement_discuss-2Dcriteria.html&d=3DDwICaQ&c=3DHAkYuh63rsuhr6Scbfh0UjBX=
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tvig0Pod2iYz1kE1G9Yj72-TdzzWuw-Wi17D6TfU&s=3D8uPkIAPxrIiuVMLudgaSbVjvc-3iZN=
kLaXrmc6GJpZM&e=3D


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From: <rui.valadas@tecnico.ulisboa.pt>
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Subject: [OSPF] Immediate Replying Hello
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Hi,

 

Many OSPF implementations include the Immediate Replying Hello feature,
which I believe is not standard.

 

The only reference I found is the draft "Update to OSPF Hello procedure,
draft-kou-ospf-immediately-replying-hello-02.txt" which has expired.

 

Are vendors following what is written in this draft? Is there a document
from any vendor that details this feature? 

 

Thanks.

 

Rui Valadas


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link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal>Hi,<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Many OSPF =
implementations include the Immediate Replying Hello feature, which I =
believe is not standard.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>The only =
reference I found is the draft &#8220;Update to OSPF Hello procedure, =
draft-kou-ospf-immediately-replying-hello-02.txt&#8221; which has =
expired.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Are vendors following what is written in this draft? =
Is there a document from any vendor that details this feature? =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Thanks.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Rui =
Valadas<o:p></o:p></p></div></body></html>
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From nobody Wed Jan 31 00:50:54 2018
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Subject: [OSPF] I-D Action: draft-ietf-ospf-link-overload-15.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 Open Shortest Path First IGP WG of the IETF.

        Title           : OSPF Graceful Link shutdown
        Authors         : Shraddha Hegde
                          Pushpasis Sarkar
                          Hannes Gredler
                          Mohan Nanduri
                          Luay Jalil
	Filename        : draft-ietf-ospf-link-overload-15.txt
	Pages           : 17
	Date            : 2018-01-31

Abstract:
   When a link is being prepared to be taken out of service, the traffic
   needs to be diverted from both ends of the link.  Increasing the
   metric to the highest value on one side of the link is not sufficient
   to divert the traffic flowing in the other direction.

   It is useful for the routers in an OSPFv2 or OSPFv3 routing domain to
   be able to advertise a link as being in a graceful-shutdown state to
   indicate impending maintenance activity on the link.  This
   information can be used by the network devices to re-route the
   traffic effectively.

   This document describes the protocol extensions to disseminate
   graceful-link-shutdown information in OSPFv2 and OSPFv3.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-link-overload/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-link-overload-15
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-link-overload-15

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-link-overload-15


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: Tim Chown <Tim.Chown@jisc.ac.uk>
To: Shraddha Hegde <shraddha@juniper.net>
CC: "ops-dir@ietf.org" <ops-dir@ietf.org>, "ospf@ietf.org" <ospf@ietf.org>, "draft-ietf-ospf-link-overload.all@ietf.org" <draft-ietf-ospf-link-overload.all@ietf.org>
Thread-Topic: Opsdir telechat review of draft-ietf-ospf-link-overload-13
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Subject: Re: [OSPF] Opsdir telechat review of draft-ietf-ospf-link-overload-13
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Hi,

My comments 2 and 3 are covered, thanks.

My first comment, that the introduction section is rather muddled / unclear=
, still holds. I don't see that this has been changed; I think all the text=
 is in there, it just doesn't flow well (to me).  Whether you change it, is=
 up to you. I'd suggest if you do change it that the structure covers: the =
problem, the current tools that can be used, why/where those tools do not s=
olve the problem, and then the solution defined in the document.

Best wishes,
Tim=20

> On 31 Jan 2018, at 03:47, Shraddha Hegde <shraddha@juniper.net> wrote:
>=20
> Tim,
>=20
> Thanks for the review and comments.
> Pls see inline for responses.
>=20
> -----Original Message-----
> From: Tim Chown [mailto:tim.chown@jisc.ac.uk]=20
> Sent: Monday, January 22, 2018 8:25 PM
> To: ops-dir@ietf.org
> Cc: ospf@ietf.org; draft-ietf-ospf-link-overload.all@ietf.org
> Subject: Opsdir telechat review of draft-ietf-ospf-link-overload-13
>=20
> Reviewer: Tim Chown
> Review result: Ready
>=20
> Hi,
>=20
> I have reviewed this document as part of the Operational directorate's on=
going effort to review all IETF documents being processed by the IESG.  The=
se comments were written with the intent of improving the operational aspec=
ts of the IETF drafts. Comments that are not addressed in last call may be =
included in AD reviews during the IESG review. Document editors and WG chai=
rs should treat these comments just like any other last call comments.
>=20
> This document defines mechanism(s) to allow OSPF routers to indicate that=
 a specific link, rather than a whole node, is entering an imminent mainten=
ance state, to allow other devices that understand the protocol extension(s=
) to more gracefully re-route traffic around the affected link.
>=20
> I believe the document is Ready for publication.  I have only three minor=
 comments below, which the authors may choose to act on.
>=20
> Overall the document reads reasonably well. Not being overly familiar wit=
h the material, I needed to read it through end-to-end more than once to be=
tter understand its scope and intent. My first comment would be that perhap=
s the introduction section could be better written; the abstract seemed cle=
ar on the purpose of the draft, while the introduction felt a little muddle=
d.  Sections 2, 3 and 4, which detail the motivations and extensions, were =
much clearer.
> <Shraddha> Added more text to introduction section in version -14. Pls ch=
eck if it looks better now.
>=20
> Secondly, there are some minor typographic errors throughout the document=
, generally missing (in)definite articles.  While the RFC Editor would pick=
 these up, it would be nice for the authors to have a final pass and fix th=
ose before submission.
> <Shraddha> Ack.=20
>=20
> Thirdly, the document does not give any advice on the timing of using the=
 extensions - how far in advance is it recommended to use the extensions? -=
 or on the return to 'normal' state once the maintenance is completed.  So =
perhaps consider adding a short section on this, maybe in Section 5.
> <Shraddha> Added below details to section 5
>=20
> When a link is ready to carry traffic, the Graceful-Lnk-Shutdown sub-TLV =
should be removed from the Extended Link TLV/Router-Link TLV and the corres=
ponding
> LSAs MUST be readvertised.
>=20
> Best wishes,
> Tim
>=20
>=20


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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "rui.valadas@tecnico.ulisboa.pt" <rui.valadas@tecnico.ulisboa.pt>, "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: [OSPF] Immediate Replying Hello
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Date: Wed, 31 Jan 2018 12:47:28 +0000
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From nobody Wed Jan 31 05:44:00 2018
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Subject: Re: [OSPF] Immediate Replying Hello
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Hi,

=20

It helps, thanks.

=20

But the Kou draft =
(https://datatracker.ietf.org/doc/draft-kou-ospf-immediately-replying-hel=
lo/ ) also mentions two other situations where immediate hellos must be =
sent: after state changes from =E2=80=9C2-Way=E2=80=9D or greater down =
to =E2=80=9CInit=E2=80=9D (case 2), and after DR election (case 3). Do =
you know if these cases are also implemented?

=20

Thanks.

=20

Rui

=20

From: Acee Lindem (acee) [mailto:acee@cisco.com]=20
Sent: Wednesday, January 31, 2018 12:47 PM
To: rui.valadas@tecnico.ulisboa.pt; ospf@ietf.org
Subject: Re: [OSPF] Immediate Replying Hello

=20

Hi Rui,=20

=20

It is not a standard. However, it is a technique used by many =
implementations to speed adjacency formation when a hello packet is =
received and the neighbor state is less than two-way. At least one of =
the implementations with witch with I have been associated would unicast =
the hello.=20

=20

Hope this helps,=20

Acee=20

=20

From: OSPF <ospf-bounces@ietf.org <mailto:ospf-bounces@ietf.org> > on =
behalf of "rui.valadas@tecnico.ulisboa.pt =
<mailto:rui.valadas@tecnico.ulisboa.pt> " =
<rui.valadas@tecnico.ulisboa.pt <mailto:rui.valadas@tecnico.ulisboa.pt> =
>
Date: Wednesday, January 31, 2018 at 3:28 AM
To: OSPF WG List <ospf@ietf.org <mailto:ospf@ietf.org> >
Subject: [OSPF] Immediate Replying Hello

=20

Hi,

=20

Many OSPF implementations include the Immediate Replying Hello feature, =
which I believe is not standard.

=20

The only reference I found is the draft =E2=80=9CUpdate to OSPF Hello =
procedure, draft-kou-ospf-immediately-replying-hello-02.txt=E2=80=9D =
which has expired.

=20

Are vendors following what is written in this draft? Is there a document =
from any vendor that details this feature?=20

=20

Thanks.

=20

Rui Valadas


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link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal>Hi,<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>It helps, =
thanks.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>But the Kou draft (<a =
href=3D"https://datatracker.ietf.org/doc/draft-kou-ospf-immediately-reply=
ing-hello/">https://datatracker.ietf.org/doc/draft-kou-ospf-immediately-r=
eplying-hello/</a> ) also mentions two other situations where immediate =
hellos must be sent: after state changes from =E2=80=9C2-Way=E2=80=9D or =
greater down to =E2=80=9CInit=E2=80=9D (case 2), and after DR election =
(case 3). Do you know if these cases are also =
implemented?<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Thanks.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Rui<o:p></o:p></p><p class=3DMsoNormal><a =
name=3D"_MailEndCompose"><o:p>&nbsp;</o:p></a></p><span =
style=3D'mso-bookmark:_MailEndCompose'></span><div><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From:</b> Acee Lindem (acee) =
[mailto:acee@cisco.com] <br><b>Sent:</b> Wednesday, January 31, 2018 =
12:47 PM<br><b>To:</b> rui.valadas@tecnico.ulisboa.pt; =
ospf@ietf.org<br><b>Subject:</b> Re: [OSPF] Immediate Replying =
Hello<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Hi Rui, =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>It is not a standard. However, it is a technique used =
by many implementations to speed adjacency formation when a hello packet =
is received and the neighbor state is less than two-way. At least one of =
the implementations with witch with I have been associated would unicast =
the hello. <o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Hope this helps, <o:p></o:p></p><p =
class=3DMsoNormal>Acee <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal 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'>OSPF &lt;<a =
href=3D"mailto:ospf-bounces@ietf.org">ospf-bounces@ietf.org</a>&gt; on =
behalf of &quot;<a =
href=3D"mailto:rui.valadas@tecnico.ulisboa.pt">rui.valadas@tecnico.ulisbo=
a.pt</a>&quot; &lt;<a =
href=3D"mailto:rui.valadas@tecnico.ulisboa.pt">rui.valadas@tecnico.ulisbo=
a.pt</a>&gt;<br><b>Date: </b>Wednesday, January 31, 2018 at 3:28 =
AM<br><b>To: </b>OSPF WG List &lt;<a =
href=3D"mailto:ospf@ietf.org">ospf@ietf.org</a>&gt;<br><b>Subject: =
</b>[OSPF] Immediate Replying Hello<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal =
style=3D'margin-left:.5in'><o:p>&nbsp;</o:p></p></div><p =
class=3DMsoNormal style=3D'margin-left:.5in'><a =
name=3D"_MailOriginalBody">Hi,<o:p></o:p></a></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span =
style=3D'mso-bookmark:_MailOriginalBody'>&nbsp;<o:p></o:p></span></p><p =
class=3DMsoNormal style=3D'margin-left:.5in'><span =
style=3D'mso-bookmark:_MailOriginalBody'>Many OSPF implementations =
include the Immediate Replying Hello feature, which I believe is not =
standard.<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span =
style=3D'mso-bookmark:_MailOriginalBody'>&nbsp;<o:p></o:p></span></p><p =
class=3DMsoNormal style=3D'margin-left:.5in'><span =
style=3D'mso-bookmark:_MailOriginalBody'>The only reference I found is =
the draft =E2=80=9CUpdate to OSPF Hello procedure, =
draft-kou-ospf-immediately-replying-hello-02.txt=E2=80=9D which has =
expired.<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span =
style=3D'mso-bookmark:_MailOriginalBody'>&nbsp;<o:p></o:p></span></p><p =
class=3DMsoNormal style=3D'margin-left:.5in'><span =
style=3D'mso-bookmark:_MailOriginalBody'>Are vendors following what is =
written in this draft? Is there a document from any vendor that details =
this feature? <o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span =
style=3D'mso-bookmark:_MailOriginalBody'>&nbsp;<o:p></o:p></span></p><p =
class=3DMsoNormal style=3D'margin-left:.5in'><span =
style=3D'mso-bookmark:_MailOriginalBody'>Thanks.<o:p></o:p></span></p><p =
class=3DMsoNormal style=3D'margin-left:.5in'><span =
style=3D'mso-bookmark:_MailOriginalBody'>&nbsp;<o:p></o:p></span></p><p =
class=3DMsoNormal style=3D'margin-left:.5in'><span =
style=3D'mso-bookmark:_MailOriginalBody'>Rui =
Valadas</span><o:p></o:p></p></div></body></html>
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "rui.valadas@tecnico.ulisboa.pt" <rui.valadas@tecnico.ulisboa.pt>, "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: [OSPF] Immediate Replying Hello
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Date: Wed, 31 Jan 2018 15:15:31 +0000
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References: <000c01d39a6d$602ea9e0$208bfda0$@tecnico.ulisboa.pt> <DAAB9EC6-D53A-4639-BC7E-9435D8B97B3C@cisco.com> <00b601d39a99$3421cae0$9c6560a0$@tecnico.ulisboa.pt>
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--_000_258A916F195A4AE39A3C73B45C81DF51ciscocom_--


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From: Balaji venkat Venkataswami <balajivenkat299@gmail.com>
Date: Wed, 31 Jan 2018 21:41:37 +0530
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--001a11442e44e15525056414bb11
Content-Type: text/plain; charset="UTF-8"

Hi Peter, Acee,

In section 2 in your proposal, you have specified as follows.


1.  Remote Interface IP address [RFC3630] - OSPFv2 currently cannot
       distinguish between parallel links between two OSPFv2 routers.
       As a result, the two-way connectivity check performed during SPF
       may succeed when the two routers disagree on which of the links
       to use for data traffic.

Though your intention was to say that Remote Interface IP address is a
Link-attribute that would
be useful to non-MPLS-TE and non-GMPLS applications, it comes across in
this para that the
parallel-links identification problem still exists in OSPFv2 inspite of RFC
3630 specs for this
TLV. Its just a cosmetic issue but for a newbie looking at the draft, it
takes the conclusion too
seriously.

RFC 3630 appropriate extract.

2.5.4 <https://tools.ietf.org/html/rfc3630#section-2.5.4>.  Remote
Interface IP Address

   The Remote Interface IP Address sub-TLV specifies the IP address(es)
   of the neighbor's interface corresponding to this link.  This and the
   local address are used to discern multiple parallel links between
   systems.  If the Link Type of the link is Multi-access, the Remote
   Interface IP Address is set to 0.0.0.0; alternatively, an
   implementation MAY choose not to send this sub-TLV.

   The Remote Interface IP Address sub-TLV is TLV type 4, and is 4N
   octets in length, where N is the number of neighbor addresses.



Just a small correction needed. That RFC 3630 got rid of the problem and
that it still doesnt persist.

thanks and regards,
balaji venkat

---------- Forwarded message ----------
From: <internet-drafts@ietf.org>
Date: Tue, Jan 30, 2018 at 6:41 PM
Subject: I-D Action: draft-ietf-ospf-te-link-attr-reuse-03.txt
To: i-d-announce@ietf.org
Cc: ospf@ietf.org



A New Internet-Draft is available from the on-line Internet-Drafts
directories.
This draft is a work item of the Open Shortest Path First IGP WG of the
IETF.

        Title           : OSPFv2 Link Traffic Engineering (TE) Attribute
Reuse
        Authors         : Peter Psenak
                          Acee Lindem
                          Les Ginsberg
                          Wim Henderickx
                          Jeff Tantsura
                          Hannes Gredler
                          John Drake
        Filename        : draft-ietf-ospf-te-link-attr-reuse-03.txt
        Pages           : 16
        Date            : 2018-01-30

Abstract:
   Various link attributes have been defined in OSPFv2 in the context of
   the MPLS Traffic Engineering (TE) and GMPLS.  Many of these link
   attributes can be used for purposes other than MPLS Traffic
   Engineering or GMPLS.  This documents defines how to distribute such
   attributes in OSPFv2 for applications other than MPLS Traffic
   Engineering or GMPLS purposes.

--001a11442e44e15525056414bb11
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Hi Peter, Acee,</div><div><br></div><div>In section 2=
 in your proposal, you have specified as follows.</div><div><br></div><div>=
<br></div><pre style=3D"box-sizing:border-box;overflow:auto;font-family:&qu=
ot;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-ligature=
s:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;tex=
t-align:start;text-indent:0px;text-transform:none;word-spacing:0px;text-dec=
oration-style:initial;text-decoration-color:initial">1.  Remote Interface I=
P address [RFC3630] - OSPFv2 currently cannot
       distinguish between parallel links between two OSPFv2 routers.
       As a result, the two-way connectivity check performed during SPF
       may succeed when the two routers disagree on which of the links
       to use for data traffic.</pre><div>Though your intention was to say =
that Remote Interface IP address is a Link-attribute that would</div><div>b=
e useful to non-MPLS-TE and non-GMPLS applications, it comes across in this=
 para that the=C2=A0</div><div>parallel-links identification problem still =
exists in OSPFv2 inspite of RFC 3630 specs for this</div><div>TLV. Its just=
 a cosmetic issue but for a newbie looking at the draft, it takes the concl=
usion too</div><div>seriously.=C2=A0</div><div><br></div><div>RFC 3630 appr=
opriate extract.</div><div><br></div><pre class=3D"gmail-newpage" style=3D"=
font-size:13.3333px;margin-top:0px;margin-bottom:0px;color:rgb(0,0,0);font-=
style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-we=
ight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transf=
orm:none;word-spacing:0px;text-decoration-style:initial;text-decoration-col=
or:initial"><span class=3D"gmail-h4" style=3D"line-height:0pt;display:inlin=
e;white-space:pre;font-family:monospace;font-size:1em;font-weight:bold"><h4=
 style=3D"line-height:0pt;display:inline;white-space:pre;font-family:monosp=
ace;font-size:1em;font-weight:bold"><a class=3D"gmail-selflink" name=3D"sec=
tion-2.5.4" href=3D"https://tools.ietf.org/html/rfc3630#section-2.5.4" styl=
e=3D"color:black;text-decoration:none">2.5.4</a>.  Remote Interface IP Addr=
ess</h4></span>

   The Remote Interface IP Address sub-TLV specifies the IP address(es)
   of the neighbor&#39;s interface corresponding to this link.  This and th=
e
   local address are used to discern multiple parallel links between
   systems.  If the Link Type of the link is Multi-access, the Remote
   Interface IP Address is set to 0.0.0.0; alternatively, an
   implementation MAY choose not to send this sub-TLV.

   The Remote Interface IP Address sub-TLV is TLV type 4, and is 4N
   octets in length, where N is the number of neighbor addresses.
</pre><br class=3D"gmail-Apple-interchange-newline"><div><br></div><div>Jus=
t a small correction needed. That RFC 3630 got rid of the problem and that =
it still doesnt persist.</div><div><br></div><div>thanks and regards,</div>=
<div>balaji venkat</div><br><div class=3D"gmail_quote">---------- Forwarded=
 message ----------<br>From: <b class=3D"gmail_sendername"></b> <span dir=
=3D"ltr">&lt;<a href=3D"mailto:internet-drafts@ietf.org">internet-drafts@ie=
tf.org</a>&gt;</span><br>Date: Tue, Jan 30, 2018 at 6:41 PM<br>Subject: I-D=
 Action: draft-ietf-ospf-te-link-attr-reuse-03.txt<br>To: <a href=3D"mailto=
:i-d-announce@ietf.org">i-d-announce@ietf.org</a><br>Cc: <a href=3D"mailto:=
ospf@ietf.org">ospf@ietf.org</a><br><br><br><br>
A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.<br>
This draft is a work item of the Open Shortest Path First IGP WG of the IET=
F.<br>
<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Title=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0:=
 OSPFv2 Link Traffic Engineering (TE) Attribute Reuse<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Authors=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0: Pete=
r Psenak<br>
=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 Acee Lindem<br>
=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 Les Ginsberg<br>
=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 Wim Henderickx<br>
=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 Jeff Tantsura<br>
=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 Hannes Gredler<br>
=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 John Drake<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Filename=C2=A0 =C2=A0 =C2=A0 =C2=A0 : draft-iet=
f-ospf-te-link-attr-<wbr>reuse-03.txt<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Pages=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0:=
 16<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Date=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 :=
 2018-01-30<br>
<br>
Abstract:<br>
=C2=A0 =C2=A0Various link attributes have been defined in OSPFv2 in the con=
text of<br>
=C2=A0 =C2=A0the MPLS Traffic Engineering (TE) and GMPLS.=C2=A0 Many of the=
se link<br>
=C2=A0 =C2=A0attributes can be used for purposes other than MPLS Traffic<br=
>
=C2=A0 =C2=A0Engineering or GMPLS.=C2=A0 This documents defines how to dist=
ribute such<br>
=C2=A0 =C2=A0attributes in OSPFv2 for applications other than MPLS Traffic<=
br>
=C2=A0 =C2=A0Engineering or GMPLS purposes.<br></div></div>

--001a11442e44e15525056414bb11--

