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Last Call Review of draft-ietf-lsr-flex-algo-23

Request Review of draft-ietf-lsr-flex-algo
Requested revision No specific revision (document currently at 26)
Type Last Call Review
Team Ops Directorate (opsdir)
Deadline 2022-09-26
Requested 2022-09-12
Authors Peter Psenak , Shraddha Hegde , Clarence Filsfils , Ketan Talaulikar , Arkadiy Gulko
I-D last updated 2022-09-21
Completed reviews Rtgdir Last Call review of -12 by Eric Gray (diff)
Rtgdir Last Call review of -18 by Henning Rogge (diff)
Opsdir Last Call review of -23 by Linda Dunbar (diff)
Secdir Last Call review of -23 by Charlie Kaufman (diff)
Genart Last Call review of -23 by Dan Romascanu (diff)
Opsdir Telechat review of -25 by Linda Dunbar (diff)
Assignment Reviewer Linda Dunbar
State Completed Snapshot
Review review-ietf-lsr-flex-algo-23-opsdir-lc-dunbar-2022-09-21
Posted at
Reviewed revision 23 (document currently at 26)
Result Has nits
Completed 2022-09-21
I have reviewed this document as part of the Ops area directorate's ongoing
effort to review all IETF documents being processed by the IESG.  These
comments were written primarily for the benefit of the Ops area directors.
Document editors and WG chairs should treat these comments just like any other
last call comments.

This document specifies a set of extensions to IGP to enable multiple
topologies within one IGP domain, and each topology has its unique
constraint-based path computation metric.

It would be very helpful if Section 15 (Operational Consideration) included
some considerations on the number of topologies to be created for exemplary
deployments. Even though theoretically, hundreds/thousands of topologies can be
supported by the mechanisms described in the draft, in practice, probably only
a handful of (or even fewer) Flex-Algorithms are needed per IGP domain. It
would be so much easier to follow the document if knowing only two or three
Flex-Algorithm are needed.

Thank you
Linda Dunbar