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Last Call Review of draft-ietf-idr-route-oscillation-stop-02
review-ietf-idr-route-oscillation-stop-02-genart-lc-kyzivat-2016-04-27-00

Request Review of draft-ietf-idr-route-oscillation-stop
Requested revision No specific revision (document currently at 04)
Type Last Call Review
Team General Area Review Team (Gen-ART) (genart)
Deadline 2016-04-29
Requested 2016-04-18
Authors Daniel Walton , Alvaro Retana , Enke Chen , John Scudder
I-D last updated 2016-04-27
Completed reviews Genart Last Call review of -02 by Paul Kyzivat (diff)
Genart Last Call review of -02 by Paul Kyzivat (diff)
Secdir Last Call review of -02 by Chris M. Lonvick (diff)
Opsdir Last Call review of -02 by Jon Mitchell (diff)
Rtgdir Early review of -00 by Tony Przygienda (diff)
Rtgdir Early review of -02 by He Jia (diff)
Assignment Reviewer Paul Kyzivat
State Completed
Request Last Call review on draft-ietf-idr-route-oscillation-stop by General Area Review Team (Gen-ART) Assigned
Reviewed revision 02 (document currently at 04)
Result Ready w/issues
Completed 2016-04-27
review-ietf-idr-route-oscillation-stop-02-genart-lc-kyzivat-2016-04-27-00
I am the assigned Gen-ART reviewer for this draft. The General Area
Review Team (Gen-ART) reviews all IETF documents being processed by the
IESG for the IETF Chair. Please treat these comments just like any other
last call comments. For more information, please see the FAQ at
<http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>.

Document: draft-ietf-idr-route-oscillation-stop-02
Reviewer: Paul Kyzivat
Review Date: 2016-04-27
IETF LC End Date: 2016-04-29
IESG Telechat date: 2016-05-05

Summary:

This draft is on the right track but has open issues, described in the
review.

Major: 0
Minor: 1
Nits:  0

==========

MINOR:

I am somewhat confused about the intended status of this document. It is
declared as Standards Track, and it does use a bit of 2119 language. But
the majority of the few SHOULDs are qualified in ways that seem to give
the implementer discretion without clear explanation. (E.g., "Depending
on the configuration".)

If the document is intended to be normative, then I would think a key
requirement would be to avoid making advertisements that lead to route
oscillation, and to require the use of the mechanisms specified here
unless some alternative approach is used.

Also, in general it is good when using "SHOULD" to identify the
acceptable conditions for not following it. This would be one way to
satisfy my above concern.