IETF Logo Mail Archive

Re: [MMUSIC] Feedback requested on requirements

Christer Holmberg <christer.holmberg@ericsson.com> Tue, 30 April 2013 07:31 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 C839D21F972B for <mmusic@ietfa.amsl.com>; Tue, 30 Apr 2013 00:31:33 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.024
X-Spam-Level:
X-Spam-Status: No, score=-6.024 tagged_above=-999 required=5 tests=[AWL=0.225, 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 L2yiZzDrFIm3 for <mmusic@ietfa.amsl.com>; Tue, 30 Apr 2013 00:31:27 -0700 (PDT)
Received: from mailgw7.ericsson.se (mailgw7.ericsson.se [193.180.251.48]) by ietfa.amsl.com (Postfix) with ESMTP id 26E3321F8454 for <mmusic@ietf.org>; Tue, 30 Apr 2013 00:31:26 -0700 (PDT)
X-AuditID: c1b4fb30-b7f266d000000cb5-ea-517f734d2a4f
Received: from ESESSHC012.ericsson.se (Unknown_Domain [153.88.253.125]) by mailgw7.ericsson.se (Symantec Mail Security) with SMTP id E6.5E.03253.D437F715; Tue, 30 Apr 2013 09:31:25 +0200 (CEST)
Received: from ESESSMB209.ericsson.se ([169.254.9.167]) by ESESSHC012.ericsson.se ([153.88.183.54]) with mapi id 14.02.0328.009; Tue, 30 Apr 2013 09:31:25 +0200
From: Christer Holmberg <christer.holmberg@ericsson.com>
To: "Dale R. Worley" <worley@ariadne.com>
Thread-Topic: [MMUSIC] Feedback requested on requirements
Thread-Index: AQHOQevTi+cVnxjNCEKSb6lvFRbbnJjnWrcQgAZrVnmAAJ8XsA==
Date: Tue, 30 Apr 2013 07:31:24 +0000
Message-ID: <7594FB04B1934943A5C02806D1A2204B1C368754@ESESSMB209.ericsson.se>
References: <201304231530.r3NFU9mB3237170@shell01.TheWorld.com> <CABkgnnX__cZddWRm1AX1ie6-W7a=oyprAmpZ5s-2=nTOMqGkxA@mail.gmail.com> <201304231858.r3NIwQYx3263944@shell01.TheWorld.com> <7594FB04B1934943A5C02806D1A2204B1C35D1A5@ESESSMB209.ericsson.se> <201304251933.r3PJXuon3430760@shell01.TheWorld.com> <7594FB04B1934943A5C02806D1A2204B1C36098D@ESESSMB209.ericsson.se> <201304292200.r3TM0GmX3712511@shell01.TheWorld.com>
In-Reply-To: <201304292200.r3TM0GmX3712511@shell01.TheWorld.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [153.88.183.20]
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrFLMWRmVeSWpSXmKPExsUyM+Jvra5vcX2gQfMOU4upyx+zWLw8UebA 5DF5/1dmjyVLfjIFMEVx2aSk5mSWpRbp2yVwZczZP52tYBNbxdLbzUwNjA2sXYycHBICJhLX W6+yQ9hiEhfurWfrYuTiEBI4zCjRfe4TE4SzhFFi1ed5QB0cHGwCFhLd/7RBTBEBTYmOBTkg JrOAusTVxUEgY4SBCs63nGQGsUUELCVuLj/PAmE7STx/v5sNxGYRUJVYN+c7E4jNK+ArseRX GzvEpg3MEk/W/QC7h1PAQeJV7w+wQYxAt30/tQasgVlAXOLWk/lMEDcLSCzZc54ZwhaVePn4 H9RfihJXpy+HqteRWLD7ExuErS2xbOFrZojFghInZz5hmcAoNgvJ2FlIWmYhaZmFpGUBI8sq RvbcxMyc9HLzTYzA+Di45bfBDsZN98UOMUpzsCiJ85bk1wcKCaQnlqRmp6YWpBbFF5XmpBYf YmTi4JRqYNzLZG7oeuz9C6X0VawL4uem3Oxb0yjJWltnOImHq5GT/e6hL3HPG498kXy+IuPd 3Lkb79qp3r/63PVa4L3LlenW0+9pfPHTbN2TM0f91ata19g9rs0LbgvWf3Qpep+yzGlRtLPz DZFZNSfPt++pdIx/8TR82t8zH0+stS8zKTyQvPnoE4awi++VWIozEg21mIuKEwGcSnQcXQIA AA==
Cc: "mmusic@ietf.org" <mmusic@ietf.org>
Subject: Re: [MMUSIC] Feedback requested on requirements
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: Tue, 30 Apr 2013 07:31:33 -0000

Hi,

>> I'm a little lost. Why do we, in the bundle context, need to talk 
>> about which codecs SGCs understand? If the SGCs will process media on 
>> a codec level it will indicate in SDP which codecs it support.
>
> If an SBC reprocesses media, then a bundled session can be initiated through it only if the SBC explicitly supports bundle.
>
> But if the SBC does not reprocess media, but only *edits* what media descriptions it permits in the SDP that it passes through, 
> then bundling can succeed as long as the bundling specification does not require any element that the SBC removes.

I still don't get it :)

If an SBC needs to reprocess media, it obviously need to support the codecs used. But, that is true no matter whether BUNDLE is used or not.

Regards,

Christer

v2.23.0 | Report a Bug | By Email