[AVT] RE: I-D ACTION:draft-ash-avt-ecrtp-over-mpls-protocol-02.txt
"Ash, Gerald R \(Jerry\), ALABS" <gash@att.com> Tue, 04 January 2005 16:00 UTC
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Date: Tue, 04 Jan 2005 09:51:59 -0600
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From: "Ash, Gerald R (Jerry), ALABS" <gash@att.com>
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Cc: "Ash, Gerald R (Jerry), ALABS" <gash@att.com>
Subject: [AVT] RE: I-D ACTION:draft-ash-avt-ecrtp-over-mpls-protocol-02.txt
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All, The latest update to "Protocol Extensions for ECRTP over MPLS" is available at http://www.ietf.org/internet-drafts/draft-ash-avt-ecrtp-over-mpls-protoc ol-02.txt. The main changes are as follows: 1. Added text to the end of Section 1 (Introduction) to say how the ECRTP over MPLS solution meets the requirements in http://www.ietf.org/internet-drafts/draft-ietf-avt-hc-mpls-reqs-03.txt. 2. Changed the SCID_Packet_Type designation in Section 2.2 (Link Layer Packet Type Field) to 00000000 (was 00010000). This change is based on discussions with George Swallow and Stewart Bryant about constraints on the first nibble (e.g., see http://www.ietf.org/internet-drafts/draft-ietf-mpls-ecmp-bcp-00.txt). 3. Updated boilerplate and other edits to conform to items flagged in the idnits script. Perhaps Allison Mankin can provide a status update on the AVT (or MPLS) charter extensions to include this work. Please review the draft and make comments to the list. Thanks, Jerry -----Original Message----- From: i-d-announce-bounces@ietf.org [mailto:i-d-announce-bounces@ietf.org] On Behalf Of Internet-Drafts@ietf.org Sent: Monday, December 27, 2004 3:38 PM To: i-d-announce@ietf.org Subject: I-D ACTION:draft-ash-avt-ecrtp-over-mpls-protocol-02.txt A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : Protocol Extensions for ECRTP over MPLS Author(s) : J. Ash, et al. Filename : draft-ash-avt-ecrtp-over-mpls-protocol-02.txt Pages : 10 Date : 2004-12-27 VoIP typically uses the encapsulation voice/RTP/UDP/IP. When MPLS labels are added, this becomes voice/RTP/UDP/IP/MPLS-labels. For an MPLS VPN, the packet header is at least 48 bytes, while the voice payload is often no more than 30 bytes, for example. Header compression can significantly reduce the overhead through various compression mechanisms, such as enhanced compressed RTP (ECRTP). We consider using MPLS to route ECRTP compressed packets over an MPLS LSP without compression/decompression cycles at each router. Such an ECRTP over MPLS capability can increase the bandwidth efficiency as well as processing scalability of the maximum number of simultaneous compressed flows that use header compression at each router. In this draft we propose to use RSVP-TE extensions to signal the header compression context and other control messages between the ingress and egress LSR. We re-use the methods in ECRTP to determine the context. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ash-avt-ecrtp-over-mpls-protoc ol-02.txt _______________________________________________ Audio/Video Transport Working Group avt@ietf.org https://www1.ietf.org/mailman/listinfo/avt
- [AVT] RE: I-D ACTION:draft-ash-avt-ecrtp-over-mpl… Ash, Gerald R (Jerry), ALABS