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Last Call Review of draft-ietf-mpls-rfc3107bis-02
review-ietf-mpls-rfc3107bis-02-rtgdir-lc-bryant-2017-06-27-00

Request Review of draft-ietf-mpls-rfc3107bis
Requested revision No specific revision (document currently at 04)
Type Last Call Review
Team Routing Area Directorate (rtgdir)
Deadline 2017-06-16
Requested 2017-05-30
Requested by Deborah Brungard
Authors Eric C. Rosen
I-D last updated 2017-06-27
Completed reviews Rtgdir Early review of -01 by Jonathan Hardwick (diff)
Rtgdir Last Call review of -02 by Stewart Bryant (diff)
Genart Last Call review of -02 by Brian E. Carpenter (diff)
Comments
Prep for Last Call - prefer Stewart if he can do it.
Assignment Reviewer Stewart Bryant
State Completed
Request Last Call review on draft-ietf-mpls-rfc3107bis by Routing Area Directorate Assigned
Reviewed revision 02 (document currently at 04)
Result Ready
Completed 2017-06-27
review-ietf-mpls-rfc3107bis-02-rtgdir-lc-bryant-2017-06-27-00
Firstly my apologies for the lateness of this review.

This is a very well written draft, and can proceed as is.

Useful clarity might be added to Section 4 (dataplane) by the inclusion of some
figures. I say this as someone that finds it easier to take in information in
that format, so that is a personal preference comment, the text is correct and
technically sufficient.

There is an intriguing piece of text in the dataplane section "While this may
be useful in certain scenarios, it may provide unintended results in other
scenarios." which I think might be usefully expanded to give at least one
example of a use, and an unintended consequence.

In the introduction it says: "In [RFC3107], this feature was controlled by a
BGP Capability Code that has never been implemented, and is now essentially
obsolete." which left me wondering whether there was the intention to formally
deprecate the feature through the RFC system.