The RTP Control Protocol (RTCP) Canonical Name (CNAME) is a persistent
transport-level identifier for an RTP endpoint. While the
Synchronization Source (SSRC) identifier of an RTP endpoint may change
if a collision is detected, or when the RTP application is restarted,
its RTCP CNAME is meant to stay unchanged, so that RTP endpoints can be
uniquely identified and associated with their RTP media streams. For
proper functionality, RTCP CNAMEs should be unique within the
participants of an RTP session. However, the existing guidelines for
choosing the RTCP CNAME provided in the RTP standard are insufficient
to achieve this uniqueness. This memo updates these guidelines to
allow endpoints to choose unique RTCP CNAMEs.
Working Group Summary
The document achieved consensus in the AVT working group.
Keith Drage is the document shepherd. Robert Sparks is the responsible AD