Re: [MMUSIC] BUNDLE DISCUSION Q6: Do we always mandate 2 Offer/Answers during session establishment?

Christer Holmberg <christer.holmberg@ericsson.com> Mon, 09 September 2013 18:41 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 D4BE811E8123 for <mmusic@ietfa.amsl.com>; Mon, 9 Sep 2013 11:41:32 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -5.685
X-Spam-Level:
X-Spam-Status: No, score=-5.685 tagged_above=-999 required=5 tests=[AWL=0.564, 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 ytRWXaUmGdNE for <mmusic@ietfa.amsl.com>; Mon, 9 Sep 2013 11:41:26 -0700 (PDT)
Received: from mailgw2.ericsson.se (mailgw2.ericsson.se [193.180.251.37]) by ietfa.amsl.com (Postfix) with ESMTP id A46C111E80E6 for <mmusic@ietf.org>; Mon, 9 Sep 2013 11:41:23 -0700 (PDT)
X-AuditID: c1b4fb25-b7eff8e000000eda-d4-522e16528cc4
Received: from ESESSHC005.ericsson.se (Unknown_Domain [153.88.253.124]) by mailgw2.ericsson.se (Symantec Mail Security) with SMTP id 6B.CE.03802.2561E225; Mon, 9 Sep 2013 20:41:22 +0200 (CEST)
Received: from ESESSMB209.ericsson.se ([169.254.9.146]) by ESESSHC005.ericsson.se ([153.88.183.33]) with mapi id 14.02.0328.009; Mon, 9 Sep 2013 20:41:22 +0200
From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Martin Thomson <martin.thomson@gmail.com>
Thread-Topic: [MMUSIC] BUNDLE DISCUSION Q6: Do we always mandate 2 Offer/Answers during session establishment?
Thread-Index: Ac6n5iNHyF7lWAnpRLasr2xApQPuVQAI/dWAAMXBDgAAAJIvgAAAFjQAAAVnFUD//+XbAIAARGEAgAO2UAD//9ZIQIAAsu2AgAAr0uf//+kkAIAAIjt////f5wAABHmtdA==
Date: Mon, 09 Sep 2013 18:41:21 +0000
Message-ID: <7594FB04B1934943A5C02806D1A2204B1C49B8F8@ESESSMB209.ericsson.se>
References: <7594FB04B1934943A5C02806D1A2204B1C483C45@ESESSMB209.ericsson.se> <5224F4BB.8000904@alum.mit.edu> <CAOJ7v-20smCmAYG_be_4g2PwDigXKJu+x6yRkAzPXJ_YHWse-Q@mail.gmail.com> <522A27AB.1020102@alum.mit.edu> <CABkgnnWA7n7jy9T7cROTZSKrKAc9jCwb=68Whqt7qvVMgCQ8yA@mail.gmail.com> <7594FB04B1934943A5C02806D1A2204B1C499BB7@ESESSMB209.ericsson.se> <CABkgnnXBQobdfqVzrr=Mq9P9iDcZN=5TJze+Ld=HpN=iuhp6gQ@mail.gmail.com> <CAOJ7v-1gjeD0gfbCOfubbEZo80ZH+p8d5gKO==UdyQx_jjY5bw@mail.gmail.com> <522D8D1E.9080407@alvestrand.no> <7594FB04B1934943A5C02806D1A2204B1C49B1A3@ESESSMB209.ericsson.se> <CABkgnnUcfEQy7C3BSyA_-r5g9x=9HbU6p31i7qGfGVEMcesn3Q@mail.gmail.com> <7594FB04B1934943A5C02806D1A2204B1C49B7D4@ESESSMB209.ericsson.se> <CABkgnnUKkJhyFwVqAJrz_xJiM0To2hXyAadBENQkazVQwKOi6Q@mail.gmail.com> <7594FB04B1934943A5C02806D1A2204B1C49B8D3@ESESSMB209.ericsson.se>, <CABkgnnVRzPm9xYSimgCb+7Xw1EFb=iCaQvc_-UDO4jtT6CunZg@mail.gmail.com>
In-Reply-To: <CABkgnnVRzPm9xYSimgCb+7Xw1EFb=iCaQvc_-UDO4jtT6CunZg@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="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrGLMWRmVeSWpSXmKPExsUyM+JvjW6QmF6QwbLFRhbH+rrYLK6d+cdo MXX5YxYHZo8rE66weuycdZfdY8mSn0wBzFFcNimpOZllqUX6dglcGU9PTmUsWMBRMfnwJuYG xttsXYycHBICJhJHL91lhLDFJC7cWw8U5+IQEjjMKNF3fw8rhLOYUWJiw1SgDAcHm4CFRPc/ bZAGEQFdiUVnH7CD2MwCwRLXHtxjAikRFsiXOLmHF6KkQOLP/8nsIGNEBCYxSsz4eJsJJMEi oCLx5dkrFhCbV8BXonllGwvErs3sEvde7gW7iFMgUGLnuonMIDYj0HXfT61hglgmLnHryXwm iKsFJJbsOc8MYYtKvHz8jxXkCAkBRYnl/XIQ5ToSC3Z/YoOwtSWWLXzNDLFXUOLkzCcsExjF ZiGZOgtJyywkLbOQtCxgZFnFyJ6bmJmTXm60iREYNwe3/FbdwXjnnMghRmkOFiVx3s16ZwKF BNITS1KzU1MLUovii0pzUosPMTJxcEo1MBrWZB3vWL0tmPXegvgvzfatrFnx7Lnv2Z/FcM38 pnGkIkpzV53zySmLrvBfaZ31qWfe+RzmwwYLlKM6E0xbU5i0VLT4tBaXGC6NXOh6olOq91/T rys/F+xkvJe3+Ogau+l3MvKPbQhafNPoYo1ayKKwKbZ6jXdO9O50rmkx9jnCwN12/sHa40os xRmJhlrMRcWJAJE849JpAgAA
Cc: "mmusic@ietf.org" <mmusic@ietf.org>
Subject: Re: [MMUSIC] BUNDLE DISCUSION Q6: Do we always mandate 2 Offer/Answers during session establishment?
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: Mon, 09 Sep 2013 18:41:33 -0000

So, with some modified wording, the question is:

When an Offerer sends AN Offer with BUNDLE, and the Offerer has not previously within the dialog received SOME indicator that the Answerer supports BUNDLE, is the Offerer allowed to assign the SAME address to multiple m- lines within a BUNDLE group in the Offer?

I hope I got that right :)

Regards,

Christer
________________________________________
From: Martin Thomson [martin.thomson@gmail.com]
Sent: Monday, 09 September 2013 9:29 PM
To: Christer Holmberg
Cc: Harald Alvestrand; mmusic@ietf.org
Subject: Re: [MMUSIC] BUNDLE DISCUSION Q6: Do we always mandate 2 Offer/Answers during session establishment?

On 9 September 2013 11:28, Christer Holmberg
<christer.holmberg@ericsson.com> wrote:
> Or, the offer when the offerer still doesn't know whether the answerer supports BUNDLE - IF there is a way for endpoints to exchange that data without actually using BUNDLE.

Yes, I think that is the key.  O/A is just one way to learn about
these sorts of things :)