IETF Logo Mail Archive

Re: [rtcweb] Fwd: I-D Action: draft-alvestrand-one-rtp-00.txt

Colin Perkins <csp@csperkins.org> Mon, 22 August 2011 16:56 UTC

Return-Path: <csp@csperkins.org>
X-Original-To: rtcweb@ietfa.amsl.com
Delivered-To: rtcweb@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3B56B21F8C1C for <rtcweb@ietfa.amsl.com>; Mon, 22 Aug 2011 09:56:20 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -103.599
X-Spam-Level:
X-Spam-Status: No, score=-103.599 tagged_above=-999 required=5 tests=[AWL=0.000, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LnQrsfnJ1ZLC for <rtcweb@ietfa.amsl.com>; Mon, 22 Aug 2011 09:56:19 -0700 (PDT)
Received: from anchor-msapost-2.mail.demon.net (anchor-msapost-2.mail.demon.net [195.173.77.165]) by ietfa.amsl.com (Postfix) with ESMTP id 8B31021F8C14 for <rtcweb@ietf.org>; Mon, 22 Aug 2011 09:56:19 -0700 (PDT)
Received: from mangole.dcs.gla.ac.uk ([130.209.247.112]) by anchor-post-2.mail.demon.net with esmtpsa (AUTH csperkins-dwh) (TLSv1:AES128-SHA:128) (Exim 4.69) id 1QvXoS-0007X8-jp; Mon, 22 Aug 2011 16:57:24 +0000
Mime-Version: 1.0 (Apple Message framework v1084)
Content-Type: text/plain; charset="us-ascii"
From: Colin Perkins <csp@csperkins.org>
In-Reply-To: <1D062974A4845E4D8A343C65380492020625FDC5@XMB-BGL-414.cisco.com>
Date: Mon, 22 Aug 2011 17:57:21 +0100
Content-Transfer-Encoding: quoted-printable
Message-Id: <49046397-B141-494D-88CB-D0C911E43E94@csperkins.org>
References: <4E43BDB3.8000504@alvestrand.no> <1D062974A4845E4D8A343C65380492020625F795@XMB-BGL-414.cisco.com> <4E45282D.3000306@alvestrand.no> <1D062974A4845E4D8A343C65380492020625F7A6@XMB-BGL-414.cisco.com> <4E453FA5.8080702@alvestrand.no> <1D062974A4845E4D8A343C65380492020625FDC5@XMB-BGL-414.cisco.com>
To: Muthu Arul Mozhi Perumal <mperumal@cisco.com>
X-Mailer: Apple Mail (2.1084)
Cc: rtcweb@ietf.org
Subject: Re: [rtcweb] Fwd: I-D Action: draft-alvestrand-one-rtp-00.txt
X-BeenThere: rtcweb@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Real-Time Communication in WEB-browsers working group list <rtcweb.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/rtcweb>
List-Post: <mailto:rtcweb@ietf.org>
List-Help: <mailto:rtcweb-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 22 Aug 2011 16:56:20 -0000

On 17 Aug 2011, at 10:27, Muthu Arul Mozhi Perumal (mperumal) wrote:
>> I think it should be up to the offer generator whether he adds "a=rtcp-mux" to the first section or not.
>>  
> Since the goal is to minimize the number of transport connections I think we should put something stronger to encourage the offerer and answerer to support RTCP multiplexing. At the minimum, a normative statement recommending the use of RTCP multiplexing with this grouping semantics would go a long way (symmetric RTP for e.g is a recommendation, but virtually all implementations support it).

Such recommendations are in draft-perkins-rtcweb-rtp-usage-02. Feedback on that draft is appreciated.

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

v2.23.0 | Report a Bug | By Email