Re: [Lsr] I-D Action: draft-ietf-isis-segment-routing-msd-11.txt
Peter Psenak <ppsenak@cisco.com> Tue, 15 May 2018 09:33 UTC
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Date: Tue, 15 May 2018 11:33:25 +0200
From: Peter Psenak <ppsenak@cisco.com>
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To: Christian Hopps <chopps@chopps.org>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
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Subject: Re: [Lsr] I-D Action: draft-ietf-isis-segment-routing-msd-11.txt
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Hi Chris, On 15/05/18 10:54 , Christian Hopps wrote: > > Hi Les, > > I was going over the 2 SR-MSD documents (IS-IS and OSPF) just wondering > how viable it would be and if we should combine them. > > In any case doing the diff highlighted a couple issues in the IS-IS > version. > > Issue: Under both the Node and Link sub-tlv's the MSD type (1?) is not > actually mentioned, only the "MSD value", if one was pedantic it would > mean that regardless of the type the value was always the same, > certainly not what is intended. :) > > Issue: The OSPF version adds text about what to do in the presence of > multiple instances of the same TLV. This highlighted the fact that the > IS-IS draft doesn't do this, but also doesn't talk about there only > being 1 allowed. > > Maybe Issue: We've got 2 drafts creating the same sub-[-sub]-tlv MSD > type registry. I fully agree that we should only have one registry, but > it's interesting that we'll have 2 publications that create and > reference it. Also, where does this registry go in IANA? There are > distinct IS-IS, OSPFv2 and OSPFv3 pages that contain the IANA registries > for each protocol. Should we create a new shared LSR or IGP page? Anyway > this might be a reason to combine the 2 documents. there is one already: https://www.iana.org/assignments/igp-parameters/igp-parameters.xhtml I agree that we need registry to be created in only one of the documents and have other reference it, unless we merge these two drafts. thanks, Peter > > While somewhat inelegant we could probably avoid any need to re-Last > Call if the combination was basically a cut and paste operation. > > Thanks, > Chris. > > Les Ginsberg (ginsberg) <ginsberg@cisco.com> writes: > >> This is a minor editorial revision to make the draft consistent w >> draft-ietf-ospf-segment-routing-msd-12. >> >> Les >> >>> -----Original Message----- >>> From: Lsr <lsr-bounces@ietf.org> On Behalf Of internet-drafts@ietf.org >>> Sent: Thursday, May 10, 2018 5:49 PM >>> To: i-d-announce@ietf.org >>> Cc: lsr@ietf.org >>> Subject: [Lsr] I-D Action: draft-ietf-isis-segment-routing-msd-11.txt >>> >>> >>> A New Internet-Draft is available from the on-line Internet-Drafts >>> directories. >>> This draft is a work item of the Link State Routing WG of the IETF. >>> >>> Title : Signaling MSD (Maximum SID Depth) using IS-IS >>> Authors : Jeff Tantsura >>> Uma Chunduri >>> Sam Aldrin >>> Les Ginsberg >>> Filename : draft-ietf-isis-segment-routing-msd-11.txt >>> Pages : 9 >>> Date : 2018-05-10 >>> >>> Abstract: >>> This document defines a way for an IS-IS Router to advertise multiple >>> types of supported Maximum SID Depths (MSDs) at node and/or link >>> granularity. Such advertisements allow entities (e.g., centralized >>> controllers) to determine whether a particular SID stack can be >>> supported in a given network. This document only defines one type of >>> MSD maximum label imposition, but defines an encoding that can >>> support other MSD types. >>> >>> >>> The IETF datatracker status page for this draft is: >>> https://datatracker.ietf.org/doc/draft-ietf-isis-segment-routing-msd/ >>> >>> There are also htmlized versions available at: >>> https://tools.ietf.org/html/draft-ietf-isis-segment-routing-msd-11 >>> https://datatracker.ietf.org/doc/html/draft-ietf-isis-segment-routing-msd- >>> >>> 11 >>> >>> A diff from the previous version is available at: >>> https://www.ietf.org/rfcdiff?url2=draft-ietf-isis-segment-routing-msd-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/ >>> >>> _______________________________________________ >>> Lsr mailing list >>> Lsr@ietf.org >>> https://www.ietf.org/mailman/listinfo/lsr >> >> _______________________________________________ >> Lsr mailing list >> Lsr@ietf.org >> https://www.ietf.org/mailman/listinfo/lsr > > _______________________________________________ > Lsr mailing list > Lsr@ietf.org > https://www.ietf.org/mailman/listinfo/lsr > . >
- [Lsr] I-D Action: draft-ietf-isis-segment-routing… internet-drafts
- Re: [Lsr] I-D Action: draft-ietf-isis-segment-rou… Les Ginsberg (ginsberg)
- Re: [Lsr] I-D Action: draft-ietf-isis-segment-rou… Christian Hopps
- Re: [Lsr] I-D Action: draft-ietf-isis-segment-rou… Peter Psenak
- Re: [Lsr] I-D Action: draft-ietf-isis-segment-rou… Jeff Tantsura
- Re: [Lsr] I-D Action: draft-ietf-isis-segment-rou… Christian Hopps
- Re: [Lsr] I-D Action: draft-ietf-isis-segment-rou… Les Ginsberg (ginsberg)
- Re: [Lsr] I-D Action: draft-ietf-isis-segment-rou… Christian Hopps
- Re: [Lsr] I-D Action: draft-ietf-isis-segment-rou… Les Ginsberg (ginsberg)
- Re: [Lsr] I-D Action: draft-ietf-isis-segment-rou… Christian Hopps
- Re: [Lsr] I-D Action: draft-ietf-isis-segment-rou… Les Ginsberg (ginsberg)