Bidirectional Forwarding Detection (BFD) Multipoint Active Tails

Approval announcement
Draft of message to be sent after approval:

From: The IESG <>
To: IETF-Announce <>
Cc: The IESG <>, Reshad Rahman <>,,,,,,
Subject: Protocol Action: 'BFD Multipoint Active Tails.' to Proposed Standard (draft-ietf-bfd-multipoint-active-tail-10.txt)

The IESG has approved the following document:
- 'BFD Multipoint Active Tails.'
  (draft-ietf-bfd-multipoint-active-tail-10.txt) as Proposed Standard

This document is the product of the Bidirectional Forwarding Detection
Working Group.

The IESG contact persons are Alvaro Retana, Deborah Brungard and Martin

A URL of this Internet Draft is:

Technical Summary

   This document describes active tail extensions to and updates the
   Bidirectional Forwarding Detection (BFD) protocol for multipoint

Working Group Summary

   The document was discussed multiple times with participation from multiple members of the BFD WG.
   The discussions on whether a separate draft (v/s move to appendix) was needed for active-tail went on for a while but consensus was reached.
   Most of the technical discussions took place in 2014/2015 when the active-tail functionality was still part of the multipoint draft (i.e. before the split).
   The technical discussions were mostly on the notification mechanisms to the head, whether they are all needed and how the operate.

Document Quality

   The document has been reviewed multiple times on the BFD WG mailing list. 
   There is no known implementation of this draft. 


   Reshad Rahman is the document shepherd, BFD WG co-chair.
   Martin Vigoureux is the responsible AD.