[MMUSIC] Bundling data channel and RTP?

Christian Groves <Christian.Groves@nteczone.com> Wed, 29 April 2015 12:08 UTC

Return-Path: <Christian.Groves@nteczone.com>
X-Original-To: mmusic@ietfa.amsl.com
Delivered-To: mmusic@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A81951A88E3 for <mmusic@ietfa.amsl.com>; Wed, 29 Apr 2015 05:08:39 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9] autolearn=ham
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8_kEDE35Awqp for <mmusic@ietfa.amsl.com>; Wed, 29 Apr 2015 05:08:34 -0700 (PDT)
Received: from cserver5.myshophosting.com (cserver5.myshophosting.com [175.107.161.1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E9D401A88D8 for <mmusic@ietf.org>; Wed, 29 Apr 2015 05:08:33 -0700 (PDT)
Received: from ppp118-209-154-116.lns20.mel8.internode.on.net ([118.209.154.116]:58487 helo=[127.0.0.1]) by cserver5.myshophosting.com with esmtpsa (TLSv1:DHE-RSA-AES128-SHA:128) (Exim 4.85) (envelope-from <Christian.Groves@nteczone.com>) id 1YnQl2-0007IX-3m for mmusic@ietf.org; Wed, 29 Apr 2015 22:06:28 +1000
Message-ID: <5540C9BA.4090803@nteczone.com>
Date: Wed, 29 Apr 2015 22:08:26 +1000
From: Christian Groves <Christian.Groves@nteczone.com>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0
MIME-Version: 1.0
To: mmusic mailing list <mmusic@ietf.org>
Content-Type: text/plain; charset="utf-8"; format="flowed"
Content-Transfer-Encoding: 7bit
X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
X-AntiAbuse: Primary Hostname - cserver5.myshophosting.com
X-AntiAbuse: Original Domain - ietf.org
X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12]
X-AntiAbuse: Sender Address Domain - nteczone.com
X-Get-Message-Sender-Via: cserver5.myshophosting.com: authenticated_id: christian.groves@nteczone.com
X-Source:
X-Source-Args:
X-Source-Dir:
Archived-At: <http://mailarchive.ietf.org/arch/msg/mmusic/FNMRFQUcWm7XriLlO11RbqLlysg>
Subject: [MMUSIC] Bundling data channel and RTP?
X-BeenThere: mmusic@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: Multiparty Multimedia Session Control Working Group <mmusic.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/mmusic>, <mailto:mmusic-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/mmusic/>
List-Post: <mailto:mmusic@ietf.org>
List-Help: <mailto:mmusic-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/mmusic>, <mailto:mmusic-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 29 Apr 2015 12:08:39 -0000

Hello

According to draft-ietf-rtcweb-data-channel-13 and 
draft-ietf-rtcweb-transports-08, multiplexing of DTLS and RTP over the 
same port pair must be supported and application layer protocol payloads 
over this DTLS connection are SCTP packets, i.e. RTP and datachannel 
share the same address:port.

I assume this needs to be specified in SDP by two m-lines bundled 
together. E.g. one with "UDP/TLS/RTP/SAVPF" & one with "UDP/DTLS/SCTP" . 
However I can't find in any of the related drafts where this is stated. 
I would think the BUNDLE and JSEP drafts should mention something about 
this. Is there a draft that I've missed where this is stated?

Regards, Christian