IETF Logo Mail Archive

Re: [MMUSIC] Bundle offer with different ports - where to expect media?

Christer Holmberg <christer.holmberg@ericsson.com> Thu, 23 May 2013 13:15 UTC

Return-Path: <christer.holmberg@ericsson.com>
X-Original-To: mmusic@ietfa.amsl.com
Delivered-To: mmusic@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DFFEB21F91B2 for <mmusic@ietfa.amsl.com>; Thu, 23 May 2013 06:15:53 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.098
X-Spam-Level:
X-Spam-Status: No, score=-6.098 tagged_above=-999 required=5 tests=[AWL=0.151, BAYES_00=-2.599, HELO_EQ_SE=0.35, RCVD_IN_DNSWL_MED=-4]
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 VrScs9TrWKhb for <mmusic@ietfa.amsl.com>; Thu, 23 May 2013 06:15:47 -0700 (PDT)
Received: from mailgw2.ericsson.se (mailgw2.ericsson.se [193.180.251.37]) by ietfa.amsl.com (Postfix) with ESMTP id 445DC21F90CC for <mmusic@ietf.org>; Thu, 23 May 2013 06:15:46 -0700 (PDT)
X-AuditID: c1b4fb25-b7efb6d000007c26-15-519e16816f85
Received: from ESESSHC024.ericsson.se (Unknown_Domain [153.88.253.125]) by mailgw2.ericsson.se (Symantec Mail Security) with SMTP id FD.8B.31782.1861E915; Thu, 23 May 2013 15:15:45 +0200 (CEST)
Received: from ESESSMB209.ericsson.se ([169.254.9.167]) by ESESSHC024.ericsson.se ([153.88.183.90]) with mapi id 14.02.0328.009; Thu, 23 May 2013 15:15:44 +0200
From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Justin Uberti <juberti@google.com>, Kevin Dempsey <kevindempsey70@gmail.com>
Thread-Topic: [MMUSIC] Bundle offer with different ports - where to expect media?
Thread-Index: AQHOVWQYFllMQWcPdEapMYgKF+xnpZkOHfyA///oz4CAAATTgIABJz4AgACaOACAAE6KAIAADiMAgABcnwCAAJViAIAABFwAgACSgQCAARDl0A==
Date: Thu, 23 May 2013 13:15:43 +0000
Message-ID: <7594FB04B1934943A5C02806D1A2204B1C376D01@ESESSMB209.ericsson.se>
References: <7594FB04B1934943A5C02806D1A2204B1C374357@ESESSMB209.ericsson.se> <519A1336.9010001@jitsi.org> <9F33F40F6F2CD847824537F3C4E37DDF1159D127@MCHP04MSX.global-ad.net> <519A229D.7090204@jitsi.org> <7594FB04B1934943A5C02806D1A2204B1C374463@ESESSMB209.ericsson.se> <519A2768.5010904@alum.mit.edu> <CAPvvaa+A=LkYp9A+wENAABwCYaQcD0HVeX4o+O_16iJRPXZfNw@mail.gmail.com> <7594FB04B1934943A5C02806D1A2204B1C3744DC@ESESSMB209.ericsson.se> <CAPvvaaJsPNk1DAJXYoc8aUgZ0ZayV_8q84W=Mm7vwuRRGuwC-g@mail.gmail.com> <7594FB04B1934943A5C02806D1A2204B1C374572@ESESSMB209.ericsson.se> <519A3883.8060006@jitsi.org> <519A3C8F.3040309@alum.mit.edu> <519B343A.30704@jitsi.org> <519BB598.1030909@alum.mit.edu> <CAOJ7v-398_MiXLWjexU0Z0xQju3A-zWuQFkWkJSLPA5UEGAu+g@mail.gmail.com> <CABkgnnXqBzteoxH2qWBw1Xn9PHt2r___UCsp1Eoq4o8_VWvBZg@mail.gmail.com> <CAOJ7v-2xXb=uz3jBAKSXhyJ2mU9BGvYHZ=dkeKcZTWov7udWKQ@mail.gmail.com> <519CCE58.3000807@alum.mit.edu> <CAMvTgcdPZfBTyzoBZGCdJiHX+TaL3_T8+MnxH8+6vQPFTD4ZOA@mail.gmail.com> <CAOJ7v-1tmfy4Fu05ChcpbZT=bO-zr05qtOh9Lnw5bprbUEnoDw@mail.gmail.com>
In-Reply-To: <CAOJ7v-1tmfy4Fu05ChcpbZT=bO-zr05qtOh9Lnw5bprbUEnoDw@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [153.88.183.17]
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrNLMWRmVeSWpSXmKPExsUyM+JvrW6j2LxAg2P/VSy2ThWyuDn/LYvF 1OWPWSxWbDjA6sDi8ff9ByaPnbPusnss2FTqsWTJT6YAligum5TUnMyy1CJ9uwSujLfdS9gK FrBXbDs5kb2BsYO9i5GTQ0LAROL17D4oW0ziwr31bF2MXBxCAocZJU7s6GKFcJYwSmzr/cXU xcjBwSZgIdH9TxukQUQgSGLCobmsIDazgJPEta6XzCC2MFB86+olzBA1wRL9bx4wQth1Eutm vQezWQRUJSae/8cGYvMK+EqceT4BLC4kcJZD4supNBCbUyBQ4mD7QbA4I9Bx30+tYYLYJS5x 68l8JoijBSSW7DnPDGGLSrx8/I8V5EwJAUWJ5f1yICazgKbE+l36EJ2KElO6H7JDbBWUODnz CcsERrFZSIbOQuiYhaRjFpKOBYwsqxjZcxMzc9LLjTYxAiPo4JbfqjsY75wTOcQozcGiJM7b qz01UEggPbEkNTs1tSC1KL6oNCe1+BAjEwenVAPjJO3gRN03d1SU254Y/1O8Jnvd6l+wwtzl GSemLwqbvsv+oL5kwaw9NrxnDsRqlHpKKb5pn/mM9+ErbhM9KdaJ0q/e/HLWCYw+tOjd8Zml IvWrPgm7RX/7/exgzXeOnI9rFxlxG9xfZHRYZto1i+JdnKG/ErguyJm6XRRu8N2zqPtZcOGM wnwOJZbijERDLeai4kQAQ+4g5m4CAAA=
Cc: mmusic <mmusic@ietf.org>, Paul Kyzivat <pkyzivat@alum.mit.edu>
Subject: Re: [MMUSIC] Bundle offer with different ports - where to expect media?
X-BeenThere: mmusic@ietf.org
X-Mailman-Version: 2.1.12
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: Thu, 23 May 2013 13:15:54 -0000

Hi,

>I think we could do this using the existing syntax, e.g. 
>
>an offer of a=group:BUNDLE A B C would indicate that the offerer would prefer A, B, and C to be muxed onto A, and 
>an answer of a=group:BUNDLE C A would indicate that the answerer is going to mux C and A onto C, and send B unbundled.

In general, is there are reason why we would want to allow the answerer to use a separate port than the one indicated by the offerer? There may be reasons why the offerer has chosen that specific port.

Also, I think it is semantically wrong to do as you suggest, as you would use the group attribute to indicate a SENDING capability.

Regards,

Christer

v2.23.0 | Report a Bug | By Email