Last Call Review of draft-ietf-bfd-rfc5884-clarifications-02
review-ietf-bfd-rfc5884-clarifications-02-opsdir-lc-bradner-2015-10-19-00
Request | Review of | draft-ietf-bfd-rfc5884-clarifications |
---|---|---|
Requested revision | No specific revision (document currently at 04) | |
Type | Last Call Review | |
Team | Ops Directorate (opsdir) | |
Deadline | 2015-10-13 | |
Requested | 2015-09-28 | |
Authors | Vengada Prasad Govindan , Kalyani Rajaraman , Greg Mirsky , Nobo Akiya , Sam Aldrin | |
I-D last updated | 2015-10-19 | |
Completed reviews |
Genart Telechat review of -03
by Christer Holmberg
(diff)
Secdir Last Call review of -02 by Stephen Kent (diff) Opsdir Last Call review of -02 by Scott O. Bradner (diff) |
|
Assignment | Reviewer | Scott O. Bradner |
State | Completed | |
Request | Last Call review on draft-ietf-bfd-rfc5884-clarifications by Ops Directorate Assigned | |
Reviewed revision | 02 (document currently at 04) | |
Result | Ready | |
Completed | 2015-10-19 |
review-ietf-bfd-rfc5884-clarifications-02-opsdir-lc-bradner-2015-10-19-00
I have done a OPS-DIR review of "Clarifications to RFC 5884” <draft-ietf-bfd-rfc5884-clarifications-03.txt> summary - ready for publication This document clarifies how best to operate multiple BFD (Bidirectional Forwarding Detection) sessions in MPLS environments. Any document that purports to clarify operational procedures is, by definition, a good thing when it comes to operational impact, assuming the document is clear and makes sense. This document is clear and makes sense. One suggestion though. The first observation in Section 2.3 says: The BFD session MAY be removed in the egress LSR if the BFD session transitions from UP to DOWN. This can be done after the expiry of a configurable timer started after the BFD session state transitions from UP to DOWN at the egress LSR. It might be helpful to specifically say what the aim of using such a timer is. My guess is that the timer is used to introduce hysteresis to reduce flapping - but it would nice to say one way or the other Scott