This is a minor update only, primarily to update the version of the TCP throughput equation used, and to clarify a few points raised at the last meeting. A more significant update can be expected later in the summer. Colin Begin forwarded message:

From: internet-drafts@ietf.org Subject: I-D Action: draft-perkins-avtcore-rtp-circuit-breakers-01.txt Date: 16 July 2012 23:56:28 GMT+01:00 To: i-d-announce@ietf.org Cc: avt@ietf.org Reply-To: internet-drafts@ietf.org

A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Audio/Video Transport Core Maintenance Working Group of the IETF.

Title : RTP Congestion Control: Circuit Breakers for Unicast Sessions Author(s) : Colin Perkins Varun Singh Filename : draft-perkins-avtcore-rtp-circuit-breakers-01.txt Pages : 15 Date : 2012-07-16

Abstract: The Real-time Transport Protocol (RTP) is widely used in telephony, video conferencing, and telepresence applications. Such applications are often run on best-effort UDP/IP networks. If congestion control is not implemented in the applications, then network congestion will deteriorate the user's multimedia experience. This document does not propose a congestion control algorithm; rather, it defines a minimal set of "circuit-breakers". Circuit-breakers are conditions under which an RTP flow is expected to stop transmiting media to protect the network from excessive congestion. It is expected that all RTP applications running on best-effort networks will be able to run without triggering these circuit breakers in normal operation. Any future RTP congestion control specification is expected to operate within the envelope defined by these circuit breakers.

The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-perkins-avtcore-rtp-circuit-breakers

There's also a htmlized version available at: http://tools.ietf.org/html/draft-perkins-avtcore-rtp-circuit-breakers-01

A diff from previous version is available at: http://tools.ietf.org/rfcdiff?url2=draft-perkins-avtcore-rtp-circuit-breaker...

Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/

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-- Colin Perkins http://csperkins.org/