Re: [rtcweb] DRAFT Agenda for RTCWEB

Salvatore Loreto <salvatore.loreto@ericsson.com> Sat, 02 March 2013 06:34 UTC

Return-Path: <salvatore.loreto@ericsson.com>
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 7EB8C21F90C8 for <rtcweb@ietfa.amsl.com>; Fri, 1 Mar 2013 22:34:58 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -106.177
X-Spam-Level:
X-Spam-Status: No, score=-106.177 tagged_above=-999 required=5 tests=[AWL=0.072, BAYES_00=-2.599, HELO_EQ_SE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100]
Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XFd89Jey1i8L for <rtcweb@ietfa.amsl.com>; Fri, 1 Mar 2013 22:34:57 -0800 (PST)
Received: from mailgw7.ericsson.se (mailgw7.ericsson.se [193.180.251.48]) by ietfa.amsl.com (Postfix) with ESMTP id 72EAE21F8E48 for <rtcweb@ietf.org>; Fri, 1 Mar 2013 22:34:57 -0800 (PST)
X-AuditID: c1b4fb30-b7f0d6d000007e61-07-51319d90f68c
Received: from esessmw0247.eemea.ericsson.se (Unknown_Domain [153.88.253.124]) by mailgw7.ericsson.se (Symantec Mail Security) with SMTP id 87.04.32353.09D91315; Sat, 2 Mar 2013 07:34:56 +0100 (CET)
Received: from mail.lmf.ericsson.se (153.88.115.8) by esessmw0247.eemea.ericsson.se (153.88.115.94) with Microsoft SMTP Server id 8.3.279.1; Sat, 2 Mar 2013 07:34:55 +0100
Received: from nomadiclab.lmf.ericsson.se (nomadiclab.lmf.ericsson.se [131.160.33.3]) by mail.lmf.ericsson.se (Postfix) with ESMTP id 612E92443 for <rtcweb@ietf.org>; Sat, 2 Mar 2013 08:34:55 +0200 (EET)
Received: from nomadiclab.lmf.ericsson.se (localhost [127.0.0.1]) by nomadiclab.lmf.ericsson.se (Postfix) with ESMTP id 1237254165 for <rtcweb@ietf.org>; Sat, 2 Mar 2013 08:34:53 +0200 (EET)
Received: from Salvatore-Loretos-MacBook-Pro.local (localhost [127.0.0.1]) by nomadiclab.lmf.ericsson.se (Postfix) with ESMTP id C1C58540A0 for <rtcweb@ietf.org>; Sat, 2 Mar 2013 08:34:52 +0200 (EET)
Message-ID: <51319D8E.8030502@ericsson.com>
Date: Sat, 2 Mar 2013 08:34:54 +0200
From: Salvatore Loreto <salvatore.loreto@ericsson.com>
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:17.0) Gecko/20130216 Thunderbird/17.0.3
MIME-Version: 1.0
To: rtcweb@ietf.org
References: <CA+9kkMALouyyzN4dcGdF92TO2HGcBHbHR6fvHg7QC-x5ndCGjw@mail.gmail.com> <7594FB04B1934943A5C02806D1A2204B10B717@ESESSMB209.ericsson.se> <03FBA798AC24E3498B74F47FD082A92F36EA7EAB@US70UWXCHMBA04.zam.alcatel-lucent.com> <201303011558.r21FwfGb2830347@shell01.TheWorld.com> <5EB4AF68-2BB3-4243-B759-249065D8815F@lurchi.franken.de> <201303011957.r21JvLZG2849736@shell01.TheWorld.com> <EF476556-87B9-4BD7-82EC-F4BA4F776B4F@lurchi.franken.de>
In-Reply-To: <EF476556-87B9-4BD7-82EC-F4BA4F776B4F@lurchi.franken.de>
Content-Type: text/plain; charset="ISO-8859-1"; format=flowed
Content-Transfer-Encoding: 7bit
X-Virus-Scanned: ClamAV using ClamSMTP
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrILMWRmVeSWpSXmKPExsUyM+Jvje6EuYaBBscnqVus/dfO7sDosWTJ T6YAxigum5TUnMyy1CJ9uwSujN5Gv4KfHBXbZzaxNzBOYO9i5OSQEDCRuLfrIDOELSZx4d56 ti5GLg4hgZOMEvfnNTFCOOsZJfa/u8wO4VxglNhy7wcTSIuQwGFGiU0LjCASZxglJvRPAEvw CmhLXFn+lQXEZhFQkdjWuh4sziZgJvH84RawfaICyRL/Hh1hhKgXlDg58wlYvYiAsMTWV71g 9cICuhILF3+Dumk3s8SUtxtZQRKcAq4SZ67dAitiFrCVuDDnOguELS+x/e0cqIfUJK6e28QM camWRO/ZTqYJjCKzkOybhaR9FpL2BYzMqxjZcxMzc9LLzTcxAoP54JbfBjsYN90XO8QozcGi JM4b7nohQEggPbEkNTs1tSC1KL6oNCe1+BAjEwenVAPjSZ7TLGcXTg8o69VbY37SJTbeWH9d 8wNWLqfKzm+zdin+4U5PV9ugGMAXJd9Vt/bfVuEnJhPFQiMtNjZbVF+ZyrSPbePOsOdf4nr0 Tf6qVX/NlrBX1uVnuV4XZML/QD/b9+MFmaqmJcdsj+xcoXpu77H/ajLMjd/v3OS0lFR71ezx 2a1m1wYlluKMREMt5qLiRADvyffrNAIAAA==
Subject: Re: [rtcweb] DRAFT Agenda for RTCWEB
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: Sat, 02 Mar 2013 06:34:58 -0000

On 3/2/13 1:09 AM, Michael Tuexen wrote:
> On Mar 1, 2013, at 8:57 PM, Dale R. Worley wrote:
>
>>> From: Michael Tuexen <Michael.Tuexen@lurchi.franken.de>
>>> As far as I understand it is easy (based on the first byte) to demux
>>> DTLS from STUN and SRTP. SCTP is the only payload for DTLS, so there
>>> is no need for demuxing. So no need to control SCTP ports. Or am I
>>> missing something?
>> Controlling port numbers is needed if SCTP is *not* encapsulated in
>> DTLS and yet has to be distinguished from RTP et al.  (That would
>> become significant if encryption was applied to the bundle's packet
>> stream as a whole, rather than to the constituent streams
>> individually.)
> Sorry, I don't understand what you are saying. Which document describes
> the stack you are referring to? How would encryption be done for SCTP over UDP
> over IP?

Dale: can you clarify which scenario you have in mind when you say:
"Controlling port numbers is needed if SCTP is *not* encapsulated in 
DTLS and yet has to be distinguished from RTP et al."
is it a WebRTC usage or a usage for a different aim (maybe CLUE?)

/Salvatore