RE: [mpls] Review of draft-ietf-mpls-residence-time-12

"Adrian Farrel" <adrian@olddog.co.uk> Fri, 20 January 2017 16:11 UTC

Return-Path: <adrian@olddog.co.uk>
X-Original-To: ietf@ietfa.amsl.com
Delivered-To: ietf@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 09EC4129BFD; Fri, 20 Jan 2017 08:11:29 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.6
X-Spam-Level:
X-Spam-Status: No, score=-2.6 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zP0JgEn7_OQs; Fri, 20 Jan 2017 08:11:26 -0800 (PST)
Received: from asmtp2.iomartmail.com (asmtp2.iomartmail.com [62.128.201.249]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 2336F129BF7; Fri, 20 Jan 2017 08:11:25 -0800 (PST)
Received: from asmtp2.iomartmail.com (localhost.localdomain [127.0.0.1]) by asmtp2.iomartmail.com (8.13.8/8.13.8) with ESMTP id v0KGAjkq010050; Fri, 20 Jan 2017 16:10:45 GMT
Received: from 950129200 (50-76-52-225-ip-static.hfc.comcastbusiness.net [50.76.52.225]) (authenticated bits=0) by asmtp2.iomartmail.com (8.13.8/8.13.8) with ESMTP id v0KGAfnf009951 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=NO); Fri, 20 Jan 2017 16:10:42 GMT
From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Acee Lindem \(acee\)'" <acee@cisco.com>, "'Hannes Gredler'" <hannes@gredler.at>, "'Les Ginsberg \(ginsberg\)'" <ginsberg@cisco.com>, "'John E Drake'" <jdrake@juniper.net>, "'Alexander Vainshtein'" <Alexander.Vainshtein@ecitele.com>, "'Greg Mirsky'" <gregimirsky@gmail.com>
References: <148414970343.8167.4538946698521330202.idtracker@ietfa.amsl.com> <CA+RyBmU9W5QP4EjbPezoCpdLHv1RJCrzJvxQmeTnAvjO_6vbJA@mail.gmail.com> <CA+RyBmVrvyiwDp2kV3VLiQtqOaL=MaVjZugGbvgWnp6y3dwP3Q@mail.gmail.com> <95d41b52-5c85-869f-2139-6713816e9637@nostrum.com> <CA+RyBmWcvU70BZYRj8ZHUZrmkcwq1eHS38jFpyZOq3A_5eXZ9g@mail.gmail.com> <D4A55AE0.9483E%acee@cisco.com> <CA+RyBmWrDhZUmVN0t8aLsL6F3ZfnvBu8FW_2VjDmwj-ercLd5w@mail.gmail.com> <f315026a140148898250f8fa3bdb0123@XCH-ALN-001.cisco.com> <CA+RyBmWMBAXd+zntuAeOU9x7xs9BQSk7J-z9+yyUDvKPd3v2MA@mail.gmail.com> <HE1PR0301MB22660A73C0D5A96BA8F3F0D39D7E0@HE1PR0301MB2266.eurprd03.prod.outlook.com> <D4A65103.94DF0%acee@cisco.com> <DM5PR05MB3001952D0DDD2AA672697094C77E0@DM5PR05MB3001.namprd05.prod.outlook.com> <D4A6573B.94E53%acee@cisco.com> <DM5PR05MB3001ED6AF8296F5DBE5E38EFC77E0@DM5PR05MB3001.namprd05.prod.outlook.com> <3f43cfdfe76e437bb2df6159e5644ae5@XCH-ALN-001.cisco.com> <01e66ab2-aea1-4d60-63c6-9304d644381f@gredler.at> <D4A77012! .95F4B%acee@cisco.com>
In-Reply-To: <D4A77012.95F4B%acee@cisco.com>
Subject: RE: [mpls] Review of draft-ietf-mpls-residence-time-12
Date: Fri, 20 Jan 2017 16:10:43 -0000
Message-ID: <081b01d27337$c32b0e20$49812a60$@olddog.co.uk>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
X-Mailer: Microsoft Outlook 14.0
Thread-Index: AQFWOSrEGma5LkC6WtUlGqUktxZYvAKB2XtdAmWCILQB5DTltwEaFR6uAT9xSVQCYq2BHAJWJv3oApLRWmUCwKri5gI2fjD3AcJSq/QB/rcMnwIDom68Adqe43gBRvu3mAJCK47toTV5pyA=
Content-Language: en-gb
X-TM-AS-MML: disable
X-TM-AS-Product-Ver: IMSS-7.1.0.1679-8.0.0.1202-22836.000
X-TM-AS-Result: No--8.588-10.0-31-10
X-imss-scan-details: No--8.588-10.0-31-10
X-TMASE-MatchedRID: wQVy7q402w1dpLkh5p97g4+YSzwl92XTc5ge9aLcX3wY0A95tjAn+3MR KfyN6QiYEiHUDffGAbvPvhwKqlaMTR87PwFBTqndOcjnbzvq89+VcBtgxC/wap722hDqHosTnZO YcbQKzjz5d9Onq9woEjKHYLsR4q0LTX7PJ/OU3vL+xOhjarOnHt0H8LFZNFG7hqz53n/yPnphFY jRF+aYb0S6k6hfcuid7vyL3Q3UE2P/EBt34R9OMwvFyo7FWyY1
Archived-At: <https://mailarchive.ietf.org/arch/msg/ietf/aiDMY_hREJtmaE-XjF7hHmWX-Bo>
X-Mailman-Approved-At: Mon, 23 Jan 2017 10:49:06 -0800
Cc: mpls@ietf.org, ietf@ietf.org, isis-chairs@ietf.org, gen-art@ietf.org, draft-ietf-mpls-residence-time.all@ietf.org, "'Abhay Roy \(akr\)'" <akr@cisco.com>
X-BeenThere: ietf@ietf.org
X-Mailman-Version: 2.1.17
Precedence: list
Reply-To: adrian@olddog.co.uk
List-Id: IETF-Discussion <ietf.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ietf>, <mailto:ietf-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ietf/>
List-Post: <mailto:ietf@ietf.org>
List-Help: <mailto:ietf-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ietf>, <mailto:ietf-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 20 Jan 2017 16:11:29 -0000

I agree with Hannes on this.

However, if the document was to highlight strongly that the data is "a
non-routing related capability" (if that's what we believe!) and stress that the
information "that does not change frequently" (perhaps with some explanation of
"frequently") I believe that might help everyone.

Adrian

> >we have taken turns long-time ago to advertise non-routing
> >related information which is only relevant to controllers
> >(l2bundles comes into mind ;-)).
> >
> >while it would have been nice to get at least notice that
> >an IS-IS extension is being worked on (i mean prior to
> >IANA asking for expert review :-/ ) i see no reason why we
> >should hold this back. - we can argue perhaps whether it should
> >be part of GENAPP or ROUTERCAP TLVs, but i cannot see the
> >sky falling to advertise a non-routing related capability,
> >that does not change frequently.
> 
> I agree but was just trying to get a better idea of precisely how the
> information will be used and whether interface is the right granularity.