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

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

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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>
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Date: Fri, 20 Jan 2017 16:10:43 -0000
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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>, 'Robert Sparks' <rjsparks@nostrum.com>
Subject: Re: [mpls] Review of draft-ietf-mpls-residence-time-12
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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.

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