Re: [MMUSIC] Bundling data channel and RTP? - Text proposal

Paul Kyzivat <pkyzivat@alum.mit.edu> Sun, 31 May 2015 17:28 UTC

Return-Path: <pkyzivat@alum.mit.edu>
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 86F7D1A8738 for <mmusic@ietfa.amsl.com>; Sun, 31 May 2015 10:28:12 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.235
X-Spam-Level:
X-Spam-Status: No, score=-1.235 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, SPF_SOFTFAIL=0.665] autolearn=no
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 PMwa4OmH_X6R for <mmusic@ietfa.amsl.com>; Sun, 31 May 2015 10:28:11 -0700 (PDT)
Received: from resqmta-ch2-03v.sys.comcast.net (resqmta-ch2-03v.sys.comcast.net [IPv6:2001:558:fe21:29:69:252:207:35]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 5A14F1A8737 for <mmusic@ietf.org>; Sun, 31 May 2015 10:28:11 -0700 (PDT)
Received: from resomta-ch2-02v.sys.comcast.net ([69.252.207.98]) by resqmta-ch2-03v.sys.comcast.net with comcast id ahTT1q00327uzMh01hUAt0; Sun, 31 May 2015 17:28:10 +0000
Received: from Paul-Kyzivats-MacBook-Pro.local ([50.138.229.151]) by resomta-ch2-02v.sys.comcast.net with comcast id ahU81q00G3Ge9ey01hU91W; Sun, 31 May 2015 17:28:10 +0000
Message-ID: <556B44A7.2070800@alum.mit.edu>
Date: Sun, 31 May 2015 13:28:07 -0400
From: Paul Kyzivat <pkyzivat@alum.mit.edu>
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.7.0
MIME-Version: 1.0
To: Christer Holmberg <christer.holmberg@ericsson.com>, Roman Shpount <roman@telurix.com>
References: <7594FB04B1934943A5C02806D1A2204B1D852384@ESESSMB209.ericsson.se> <5565838D.2020005@nteczone.com> <7594FB04B1934943A5C02806D1A2204B1D866141@ESESSMB209.ericsson.se> <E1FE4C082A89A246A11D7F32A95A17828E7D3EEB@US70UWXCHMBA02.zam.alcatel-lucent.com> <CAD5OKxuEpmMVfScf62bs=y+9PyYbejfa2OmsHYq=dStTZmjdVg@mail.gmail.com> <7594FB04B1934943A5C02806D1A2204B1D8689E9@ESESSMB209.ericsson.se> <55665BFA.4020600@nteczone.com> <CAD5OKxsukfKG=bW-5QWu35AQQX_Eve8YM0cQ=xc=B=obnzKQdQ@mail.gmail.com> <7594FB04B1934943A5C02806D1A2204B1D86C915@ESESSMB209.ericsson.se> <547EE95EB794FD4DB8062F7A4C86D0BC4A36371A@FR712WXCHMBA13.zeu.alcatel-lucent.com> <CAD5OKxsu=uYqpFQ2Rko9gViCxRdiOudF6wbd618jy6CEFnjV_w@mail.gmail.com> <CAD5OKxu2TzURek3TqdjCq=EU4C4NoYKidFJM6wgqptUpz52GJQ@mail.gmail.com> <7594FB04B1934943A5C02806D1A2204B1D86E94F@ESESSMB209.ericsson.se> <CAD5OKxvHZzHwvhmvV_LdP8WG072NYqYRucGJ=6t4kex5p8KqCA@mail.gmail.com> <7594FB04B1934943A5C02806D1A2204B1D8736D0@ESESSMB209.ericsson.se>
In-Reply-To: <7594FB04B1934943A5C02806D1A2204B1D8736D0@ESESSMB209.ericsson.se>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20140121; t=1433093290; bh=j+yBKC7l049yK92qwB2zg6ar9wxqLl3AG0zicPgZLpw=; h=Received:Received:Message-ID:Date:From:MIME-Version:To:Subject: Content-Type; b=Rn+bYcVZU3/RNIaeOGtMjzSGHZNnjEnM6yipw21QrYzif+RVaz9YM7oshSRI5ACv8 HP/pfV9ZzKAjeifHPD8z35EBSHjnjLdX90XZiiZCr6ajiZn7BPDz1KXtB5WT9S+NUw TArSFAQ4rDnUeMuBmvg2ROkx8oYUwx0CBItQRMY3scyE0Bt6xEv5ZNkCLAPmJPjtkY 8VFAtEQJy607KNr2EW+cUUCFVXEKl8V/g+rTWwj/Kr295gTHTuBXxCx6pZG12YQAjb AJXlm0vYqre+uffzjQ+0TNa35LbQNWq6XDZYKfjC36N3+HKfEmu0MK45laSJZUem12 p68+SkakBXElQ==
Archived-At: <http://mailarchive.ietf.org/arch/msg/mmusic/3BrNbncCh2obv5XFVMRsXX7OrSU>
Cc: "mmusic@ietf.org" <mmusic@ietf.org>
Subject: Re: [MMUSIC] Bundling data channel and RTP? - Text proposal
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: Sun, 31 May 2015 17:28:12 -0000

On 5/31/15 3:02 AM, Christer Holmberg wrote:

> Currently, I am not aware of any scenarios where people would use BUNDLE without SRTP - or at least using clients that wouldn't support SRTP.
>
> But, as the current trend seems to be to put more and more protocols on DTLS, I think one can assume that there will also be use-cases without SRTP in future.

As things stand, if you use data channels and don't use/support RTP, 
then there is no reason to use BUNDLE - you don't have anything, even 
potentially, to bundle with the data channel.

So, until and unless there is something else that can be bundled with 
data channel over DTLS then this is a moot issue.

	Thanks,
	Paul