Re: [MMUSIC] Draft new version: 8843bis-02

Christer Holmberg <christer.holmberg@ericsson.com> Thu, 10 June 2021 14:29 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 84B193A42A6 for <mmusic@ietfa.amsl.com>; Thu, 10 Jun 2021 07:29:38 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.799
X-Spam-Level:
X-Spam-Status: No, score=-2.799 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.698, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=ericsson.com
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 YkWYfgLSHggX for <mmusic@ietfa.amsl.com>; Thu, 10 Jun 2021 07:29:34 -0700 (PDT)
Received: from EUR02-VE1-obe.outbound.protection.outlook.com (mail-eopbgr20053.outbound.protection.outlook.com [40.107.2.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id F232F3A42A4 for <mmusic@ietf.org>; Thu, 10 Jun 2021 07:29:33 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=JmHHbtpnBRU2oPBEtDSCQz1fl9fu+UCLmpQod3ny7xS1zfwlOsEyzjSpsdq0RRaTEbVrrQMmvoORls75LNUo0fgRR/tV0+WRltH4V3MHlDcIR1ngFxxb1pEawz8vxeAQrMptNgMrFMSl++lN41Vy5DzpbnktxJXvRHB/xof0ONmiRrBgZJ2pjJ+0EYAwOYXQZoDtfQ3vL7xw6/JCSIXiTQgUbD2nfRyvWmDDkDTLaj/souPrHihSgRqmPpQZi3tQKdaUFm0geqg8PQXAx/+mScFk6rHGXV7jKDqsaz1ny9ngWQuVX+d0hIhhaFo6s5IVRsSCtSA8YiVRZOJU9FQ/9w==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Y5AmhawmDwF2gbkfmxiBHYyGa6BiaSL5GrsV30i/7Hc=; b=ZWs8B/y+Rs5WzepFDOuXDhfHylZ1zHS/Imm0YSMY0uQZtlLiBurofvCURbQADjX6Cn1HGCu2PhSEiqXKoXZ7OO4BpxKHfTihAEABQvlS97Tjgx8mR0HcTuSKCewVQqQs9MLahDQJt0H2isFjjgdk7Zt+dwn4ltEeQFPjlxsPyDssIH5xxyQt7IzroTaE98CDLS45F+c3q61Ur6m0HeV4z0U6pVPQhiX32uGrf08Od4EIC3biNYE6IjC2ERot4joitStEuP4sc13l/QccLbNlgFqjzmJwsbfD6v81uTEgt2BoxDh6AdrDUOB9/bBZhG3+70Qoc9dRgazSmuznkyQJLA==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=ericsson.com; dmarc=pass action=none header.from=ericsson.com; dkim=pass header.d=ericsson.com; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ericsson.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Y5AmhawmDwF2gbkfmxiBHYyGa6BiaSL5GrsV30i/7Hc=; b=RoaPQ+mCdZe/9nI9Hi14n4ifx6YaSGNrqCkR337Brj3MZMIPQRqNnRleVdUU95He2dKFj8wvVmtHRmKN/yhzzjABzdKF0BBxXTlFittfID9H2TAj5Sz2E0n0L14quXmOMPFDOnYkwWojY8+Co2kOsDUZ5+lcyh5iGnvy4T5Rqak=
Received: from AM0PR07MB3860.eurprd07.prod.outlook.com (2603:10a6:208:4c::18) by AM4PR07MB3315.eurprd07.prod.outlook.com (2603:10a6:205:a::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4219.17; Thu, 10 Jun 2021 14:29:31 +0000
Received: from AM0PR07MB3860.eurprd07.prod.outlook.com ([fe80::b10f:ebc0:80d:db2]) by AM0PR07MB3860.eurprd07.prod.outlook.com ([fe80::b10f:ebc0:80d:db2%7]) with mapi id 15.20.4219.022; Thu, 10 Jun 2021 14:29:31 +0000
From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Paul Kyzivat <pkyzivat@alum.mit.edu>, "mmusic@ietf.org" <mmusic@ietf.org>
Thread-Topic: [MMUSIC] Draft new version: 8843bis-02
Thread-Index: Addb2d6EP/s5UCMqTzWQHbHNbpMu2wCBCUjwAAkREAAAACl8UA==
Date: Thu, 10 Jun 2021 14:29:31 +0000
Message-ID: <AM0PR07MB386099490505B7D072CCF34393359@AM0PR07MB3860.eurprd07.prod.outlook.com>
References: <AM0PR07MB386041274C21D6D7DC023DFC93389@AM0PR07MB3860.eurprd07.prod.outlook.com> <AM0PR07MB386033BABBEF4E8FD52E428F93359@AM0PR07MB3860.eurprd07.prod.outlook.com> <3b288014-fcb3-90e7-1e66-4fbb92e09989@alum.mit.edu>
In-Reply-To: <3b288014-fcb3-90e7-1e66-4fbb92e09989@alum.mit.edu>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: alum.mit.edu; dkim=none (message not signed) header.d=none;alum.mit.edu; dmarc=none action=none header.from=ericsson.com;
x-originating-ip: [80.248.247.159]
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 1f000883-cad3-4fe5-2979-08d92c1c294e
x-ms-traffictypediagnostic: AM4PR07MB3315:
x-microsoft-antispam-prvs: <AM4PR07MB33154741537DE446BF3B458093359@AM4PR07MB3315.eurprd07.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:9508;
x-ms-exchange-senderadcheck: 1
x-microsoft-antispam: BCL:0;
x-microsoft-antispam-message-info: 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
x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:AM0PR07MB3860.eurprd07.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(346002)(396003)(376002)(136003)(366004)(39860400002)(52536014)(86362001)(7696005)(26005)(9686003)(5660300002)(66946007)(122000001)(2906002)(64756008)(8676002)(33656002)(110136005)(76116006)(186003)(44832011)(66446008)(71200400001)(478600001)(8936002)(966005)(66556008)(66476007)(38100700002)(6506007)(316002)(55016002); DIR:OUT; SFP:1101;
x-ms-exchange-antispam-messagedata: =?iso-8859-1?Q?e/hUzih3FegzVutAAJVs/vFCnh8h0mFka5tRiSh9aX40UZLnfpYcb45b0b?= =?iso-8859-1?Q?rv29gbzjoSZ+3I17KgGDQwuuvvkHgF8I+nCd35lucCMsQnnKiJkVcKgVMb?= =?iso-8859-1?Q?DDSx7qfgWfpva6W9uRfJQd8Saqmh3cLBMZDmmEpuBiaAISt2rJ73Sb02T6?= =?iso-8859-1?Q?6es+M48xBrka0F35WWer/HbEzI7Sno7bhd7D88OhwJA2Q1EhDzyofLijM6?= =?iso-8859-1?Q?MW5jAorunBmPDx3ZX+Vx2GfHoWUAbBOOCmldVIV88hkL6NKJcCFhfRYYhk?= =?iso-8859-1?Q?4NNIZQZdnf1Wkt0oF4iWEBOPtQ0SqYVknDBv2IakRhmH0yqtFxG+sUbegI?= =?iso-8859-1?Q?NSNmaGpqiJ6YyhQ9KL2T+d5er8ns1fqAhMX8M8XK4g8PV8/SjNNanQH2ZW?= =?iso-8859-1?Q?4Zd8RXt73TcGjYzNFzQxWgyzCaOhaq6sulXsM+WKwMhG7i4+X2ep1pQd79?= =?iso-8859-1?Q?JxIkh9wkQJOAlANfK/0weRDDt1L5Wna4oPSGSNUTGn2nyzZpGzM/AFOeX2?= =?iso-8859-1?Q?wGKYV+T7bn4zYaj5XX0NH65Grev5aMHKhQdWgPm3N/yzE9OA7uxqvsBBdR?= =?iso-8859-1?Q?lLdJsYiuNpM2ThpsBfMmi0k8ndPv6/SV9TEbVsriPcxKX8wJqWCR++dpQO?= =?iso-8859-1?Q?H1/qo4m41pZ4GaRIoXUr59+7SEdwc5xMU+ZeFpwjka6y9jCX5zhgy+VN8z?= =?iso-8859-1?Q?FIaeViZaqjoXaayp9NgGAMktDEuedgPXR6/dxzWk8lcrjnChcLQxoUzF0f?= =?iso-8859-1?Q?KLFh6nSs1YUqCN6voibVS1cresGpruGxlPE0dmBVt6pNIvTzhqNgEShmB9?= =?iso-8859-1?Q?Wv2AKAnZEez8nlN0U+/19PriVS8ojN2bXc+63vwPW/djh6R9xM8rz5hvAr?= =?iso-8859-1?Q?GNbzMZ8OkloRfiD2vdeqXtlXsXA+HGNVH6LKz6LlTbp2gLnOnNZnGMjXG5?= =?iso-8859-1?Q?Iltpdl41zB6rgYh+1X09wETHkj5yw2Mnkk1ErQXjSCI3W2FuvYzfVnBuZh?= =?iso-8859-1?Q?pWYbIdMCTpkeom4VmoJSvOKzbAYS+km47VuSixvlNt+YlyLJWWeuIHqW8f?= =?iso-8859-1?Q?5gQx/2PQKjxJOPte/VlpUf/MJRGgQrrMs4UgH+7rWbs9VyTBf5eikc2f8X?= =?iso-8859-1?Q?2uO+NUN0cd7BASAVOmwl/3wAgSLg2WljPbnVJffMWfiZioBC1DJMg2bRnA?= =?iso-8859-1?Q?P2u58+0rlkTyA7LwSDcpOcFkom3ex0kbIzH4ADBqRmB1+g9jzl8eXbQHYK?= =?iso-8859-1?Q?s14k3U/CUXbhOpVTuk0VkY+AJlHY690Iiw93F//KHzBOtSgdaThYtM/pR+?= =?iso-8859-1?Q?gkniZelb6KJAPGm8bV80Zv6ICfwxIOyDR+JEsZJ5ZR7+I85m95Fj+9zNfF?= =?iso-8859-1?Q?jemX5rgn0d?=
x-ms-exchange-transport-forked: True
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-OriginatorOrg: ericsson.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: AM0PR07MB3860.eurprd07.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 1f000883-cad3-4fe5-2979-08d92c1c294e
X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Jun 2021 14:29:31.1931 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 92e84ceb-fbfd-47ab-be52-080c6b87953f
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: f945fb6vB7s8FiRAb/fseVIzjdV9h4G7Fh+Fj8K+3okq+iCXnr2dAfVyfSxUfckz6IhYaH0ChVCCDzPGT9P15W5+2q9/klH3kYmU3GNiF+g=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM4PR07MB3315
Archived-At: <https://mailarchive.ietf.org/arch/msg/mmusic/eWeSo96wT9IyOCJSoJSPy6Y9Sqc>
Subject: Re: [MMUSIC] Draft new version: 8843bis-02
X-BeenThere: mmusic@ietf.org
X-Mailman-Version: 2.1.29
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: <https://mailarchive.ietf.org/arch/browse/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, 10 Jun 2021 14:29:39 -0000

Hi,

>> Paul, are you happy with the way your comments have been addressed?
>
>I have one remaining question:
>
>The new section 7.3.5 is addressing the case where the offerer only support RFC8843 while the answerer supports 8842bis. In this case, what sort of answer should the answerer generate?
>Should it emulate RFC8843 behavior? Do we understand what the impact will be if not?

That is a good question.

Because, if we say that the endpoint shall generate an answer according to 8843, what about when the same endpoint later wants to generate a new offer itself? Should it then generate the offer according to 8843? I think we could easily go down a slippery slope, and eventually 8843bis endpoints would also have to fully implement 8843. I don't think we want that.

Having said that, we probably do need to say something about what "accept such offer" really means when it comes to generating the answer. My suggestion would be to say that the answer SHOULD be generated according to 8843bis. 

Nothing prevents 8843bis endpoints to fully implement 8843 if they want to, but I don't think we should specify such behavior.

Regards,

Christer


> *From:*mmusic <mmusic-bounces@ietf.org> *On Behalf Of *Christer 
> Holmberg
> *Sent:* maanantai 7. kesäkuuta 2021 23.17
> *To:* mmusic@ietf.org
> *Cc:* mmusic-chairs@ietf.org
> *Subject:* [MMUSIC] Draft new version: 8843bis-02
> 
> Hi,
> 
> I have submitted a new version (-02) of 8843bis.
> 
> Based on Paul's comment, the latest version contains two new 
> sub-sections, 7.3.5 and 7.4.1, that in addition to describing the 
> differences from 8843 also include examples showing the differences.
> 
> Unless I have missed something, all WGLC comments should now have been 
> addressed.
> 
> Regards,
> 
> Christer
> 
> 
> _______________________________________________
> mmusic mailing list
> mmusic@ietf.org
> https://www.ietf.org/mailman/listinfo/mmusic
> 

_______________________________________________
mmusic mailing list
mmusic@ietf.org
https://www.ietf.org/mailman/listinfo/mmusic