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) <[email protected]> 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 <[email protected]> On Behalf Of [email protected]
Sent: Thursday, May 10, 2018 5:49 PM
To: [email protected]
Cc: [email protected]
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/
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