[AVT] Request for publication (fwd)
Stephen Casner <casner@acm.org> Fri, 08 March 2002 08:27 UTC
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Date: Fri, 08 Mar 2002 00:20:53 -0800
From: Stephen Casner <casner@acm.org>
To: AVT WG <avt@ietf.org>
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Subject: [AVT] Request for publication (fwd)
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FYI. -- Steve ---------- Forwarded message ---------- Date: Thu, 7 Mar 2002 23:56:59 -0800 (PST) From: Stephen Casner <casner@acm.org> To: Allison Mankin <mankin@ISI.EDU>, Scott Bradner <sob@harvard.edu> Cc: iesg-secretary@ietf.org, Colin Perkins <csp@ISI.EDU> Subject: Request for publication The AVT Working Group requests publication of the following draft as a Proposed Standard RFC: Title : Compressing IP/UDP/RTP headers on links with high delay,packet loss and reordering Author(s) : T. Koren, S. Casner, J. Geevarghese, B. Thompson, P. Ruddy Filename : draft-ietf-avt-crtp-enhance-04.txt At the same time we request publication of the following related draft as a BCP RFC: Title : Tunneling multiplexed Compressed RTP ('TCRTP') Author(s) : B. Thompson, T. Koren, D. Wing Filename : draft-ietf-avt-tcrtp-06.txt We believe BCP is the appropriate status for the second draft because it does not specify any protocol itself, but rather it specifies how a collection of protocols, including the first draft above, can be used to implement efficient transmission of a multiplex of RTP streams over a wide area. This collection of documents is the solution that AVT has decided best satisfies the need for RTP multiplexing because it preserves full RTP semantics. (The work item for RTP multiplexing is erroneously already marked Done on our charter, but will be done with the publication of these drafts.) Several other proposals for RTP multiplexing were presented to AVT, indicating a significant desire for a solution to reduce overhead for IP-based media transport on paths where link-level compression was not appropriate. However, the other proposals were specific to particular applications such as the links between cell base stations and switching center. Those proposals only worked with tightly constrained sets of encodings and did not preserve the full semantics of RTP. The working group concluded that these proposals could be implemented as proprietary protocols but did not merit standardization. You may note that draft-ietf-avt-tcrtp-06.txt contains a normative reference to draft-ietf-l2tpext-l2tphc-04.txt which is currently under review by the IESG. It may make sense to consider these drafts together since the multiplexing scheme described by these drafts demonstrates the utility of l2tphc. It is possible to use the other components of the tcrtp scheme without l2tphc, but the efficiency for small-degree multiplexes would be reduced. The tcrtp draft provides examples of bandwidth efficiency calculations. -- Steve & Colin _______________________________________________ Audio/Video Transport Working Group avt@ietf.org https://www1.ietf.org/mailman/listinfo/avt
- [AVT] Request for publication (fwd) Stephen Casner
- [AVT] Request for publication (fwd) Stephen Casner