A new Request for Comments is now available in online RFC libraries.
RFC 6222
Title: Guidelines for Choosing RTP Control
Protocol (RTCP) Canonical Names (CNAMEs)
Author: A. Begen, C. Perkins,
D. Wing
Status: Standards Track
Stream: IETF
Date: April 2011
Mailbox: abegen@cisco.com,
csp@csperkins.org,
dwing@cisco.com
Pages: 9
Characters: 20393
Updates: RFC3550
I-D Tag: draft-ietf-avt-rtp-cnames-05.txt
URL: http://www.rfc-editor.org/rfc/rfc6222.txt
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 those guidelines to allow endpoints to choose unique RTCP
CNAMEs. [STANDARDS-TRACK]
This document is a product of the Audio/Video Transport Working Group of the IETF.
This is now a Proposed Standard Protocol.
STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and suggestions
for improvements. Please refer to the current edition of the Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol. Distribution of this memo is unlimited.
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