This version of the draft addresses
IESG evaluation comments from Benjamin Kaduk, Éric Vyncke, Erik
Kline, Magnus Westerlund, Martin Duke, and Robert Wilton, and review
comments from
Michael Scharf for the Transport Area Review Team,
Paul Kyzivat for the General Area Review Team,
and Sabrina Tanamal for IANA.
The primary technical change is in Section 7, where the relation to
RFC 6679 is
clarified, and the SDP signalling is updated to allow more graceful
fallback to that format. The security considerations are also
expanded, and a number of minor clarifications are made throughout.