Subject: [AVTCORE] [rtcweb] FYI: draft-ejzak-avtcore-rtp-subsessions-01

From: "Ejzak, Richard P (Richard)" <[email-masked]>
Date: Tue, 10 Jul 2012 03:17:46 +0000

Please note that I submitted an 01 version of the RTP subsessions draft.  This draft is revised extensively from 00 to focus on how it can enhance BUNDLE to enable a network to identify multiplexed flows for differential treatment and how it can be used in relay topologies.

Richard

-----Original Message-----
From: [email-masked] [mailto:[email-masked]]
Sent: Monday, July 09, 2012 10:09 PM
To: Ejzak, Richard P (Richard)
Subject: New Version Notification for draft-ejzak-avtcore-rtp-subsessions-01.txt

A new version of I-D, draft-ejzak-avtcore-rtp-subsessions-01.txt

has been successfully submitted by Richard Ejzak and posted to the

IETF repository.

Filename:   draft-ejzak-avtcore-rtp-subsessions

Revision:   01

Title:            Media multiplexing with Real-time Transport Protocol (RTP) subsessions

Creation date:    2012-07-10

WG ID:            Individual Submission

Number of pages: 14

URL:             http://www.ietf.org/internet-drafts/draft-ejzak-avtcore-rtp-subsessions-01.txt

Status:          http://datatracker.ietf.org/doc/draft-ejzak-avtcore-rtp-subsessions

Htmlized:        http://tools.ietf.org/html/draft-ejzak-avtcore-rtp-subsessions-01

Diff:            http://tools.ietf.org/rfcdiff?url2=draft-ejzak-avtcore-rtp-subsessions-01

Abstract:

   This document describes a means of multiplexing RTP streams having

   different media types within a single transport connection and a

   means of representing this multiplexing option in SDP so that network

   nodes can easily identify groups of RTP streams and their associated

   RTCP packets for differential treatment as necessary.  This mechanism

   can be used to complement the BUNDLE multiplexing scheme, which uses

   the grouping framework to identify all media lines associated with a

   single transport connection, but provides no means for network nodes

   to group RTP streams and their RTCP packets for differential

   treatment.  RTP subsessions is an alternative to the SHIM

   multiplexing proposal; it clearly partitions packets associated with

   different media lines without changing the format of individual RTP

   and RTCP packets, but it does not maintain a completely independent

   SSRC space for each media line, as does SHIM.  RTP subsessions avoid

   SSRC conflicts by construction and can be used in all RTP topologies

   in which all systems implement RTP subsessions, although SSRC mapping

   might be needed when forwarding RTP streams from an unpartitioned RTP

   session into an RTP subsession.

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