Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Considerations) in draft-ietf-mmusic-rfc8843bis-06
Christer Holmberg <christer.holmberg@ericsson.com> Tue, 23 November 2021 10:00 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 4BF493A08D9 for <mmusic@ietfa.amsl.com>; Tue, 23 Nov 2021 02:00:57 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.802
X-Spam-Level:
X-Spam-Status: No, score=-2.802 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.701, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=unavailable 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 C-0iAt1D6aHI for <mmusic@ietfa.amsl.com>; Tue, 23 Nov 2021 02:00:53 -0800 (PST)
Received: from EUR01-HE1-obe.outbound.protection.outlook.com (mail-eopbgr130041.outbound.protection.outlook.com [40.107.13.41]) (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 DE0FA3A0C49 for <mmusic@ietf.org>; Tue, 23 Nov 2021 02:00:52 -0800 (PST)
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=AbYDGtaWzmbEKhcKxnEjBZgjClOgWwIkHOHMElhmfUyWqQtaqdqehg+la2a5d+vUIM8RJ3JqZRr1nLwxBHIIiXehhtt8ki6EmIrQzouU00jZG3xriywrh9ZMIML8je5jek+RQMGfPHnw1W+oN3ExSanvU5h6XfnmZUyejZREoDGm1hRXUU1zFty+MkHSwe9OIn8TV1XdwqxHK9GvReD8C8vvsPW8DIw1V85U6ErtmVfPpX4CJGsBB8Bg5iRi5lPa42mgmx+PRy+voRMy/1T9NQ3P7ykEpksIUsr9UkQ5eAP7n82LLkBaAlLYXy5IwDGUCcvHkKYSE2SzXxVNlvp2Bw==
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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=FZt+K2qGnb7T+vHKC3Filii3kn/bds5m27z2UTt2t3s=; b=M9JMRmpcJWtpFs+76c/GE02qbYBNGHxU9pPodRSfbuaZUXFArj/HOJQ+KoVqPR5/mjwGPy5CM3JKaZhIffDlvkxTqVKo5VjWcTdHzIgbLrLFsEbRiDU9FXahcKLUCYwn3A1XIIsECTLBDNy9EUKEG/R952i3IU8jI8hzeXXriXQS0qq77BgX1pp6KR2/ZDNM2mvJl2yhxbBwU4+L8eGEbAetISLY8490q390sZq66j3p8qQ+b2VzGMO0KBJHYeD3wTP9foP7gL+W9boDq13m2FoLQgRdoWkcwnQoAWYNbmNKDKsJKN1JguhSPFs117Id9S1rqe7qto/Frzmht52tFA==
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=FZt+K2qGnb7T+vHKC3Filii3kn/bds5m27z2UTt2t3s=; b=Vb0QHquLD0viXnp6tWt5Ouw8fYx4y3L50/NMXiOJBip4jK2vIibAjz8miT9A2lVStm0zg0QuHVOFdEdm4D5p9KwXWZZH3Bkp4Lbz2grLBV6vT0JJbsqGa7+gedvWQiD094M0T7x3hgUrlirYEkqtVAIJeWTRLyRpN+ytIvhdyQQ=
Received: from HE1PR07MB4441.eurprd07.prod.outlook.com (2603:10a6:7:9f::27) by HE1PR0701MB2426.eurprd07.prod.outlook.com (2603:10a6:3:70::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4734.16; Tue, 23 Nov 2021 10:00:49 +0000
Received: from HE1PR07MB4441.eurprd07.prod.outlook.com ([fe80::10e7:1ee0:a040:45ab]) by HE1PR07MB4441.eurprd07.prod.outlook.com ([fe80::10e7:1ee0:a040:45ab%6]) with mapi id 15.20.4734.020; Tue, 23 Nov 2021 10:00:49 +0000
From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Justin Uberti <juberti@alphaexplorationco.com>
CC: Flemming Andreasen <fandreas=40cisco.com@dmarc.ietf.org>, mmusic <mmusic@ietf.org>
Thread-Topic: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Considerations) in draft-ietf-mmusic-rfc8843bis-06
Thread-Index: AQHX3Ak/hBaHnooYkUSn2nMJ6e+Pu6wP84gAgAAAW8uAAFiPAIAAm1ww
Date: Tue, 23 Nov 2021 10:00:49 +0000
Message-ID: <HE1PR07MB44419673CDC9E5C1CD76F04593609@HE1PR07MB4441.eurprd07.prod.outlook.com>
References: <443b55f8-9d42-6728-de87-36a8392aaa10@cisco.com> <CAOLzse3aNuKCp9jSXyzAdLjpaCZUzL4K071k3zLTWoE3Fry-BA@mail.gmail.com> <HE1PR07MB4441163C03DA3FA9A88B0114939F9@HE1PR07MB4441.eurprd07.prod.outlook.com> <CAOLzse1JMd=re=96OQR1qD6wj_SJnwRdUGAzU69k4v=gr4LcvQ@mail.gmail.com>
In-Reply-To: <CAOLzse1JMd=re=96OQR1qD6wj_SJnwRdUGAzU69k4v=gr4LcvQ@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=ericsson.com;
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 695f569b-9514-48ab-3f3a-08d9ae68208a
x-ms-traffictypediagnostic: HE1PR0701MB2426:
x-microsoft-antispam-prvs: <HE1PR0701MB2426EF7F1E553E8D5C07249E93609@HE1PR0701MB2426.eurprd07.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:10000;
x-ms-exchange-senderadcheck: 1
x-ms-exchange-antispam-relay: 0
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:HE1PR07MB4441.eurprd07.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(366004)(9686003)(44832011)(8676002)(55016003)(2906002)(4326008)(966005)(82960400001)(53546011)(52536014)(8936002)(6506007)(54906003)(38100700002)(186003)(26005)(66476007)(64756008)(76116006)(66446008)(122000001)(316002)(86362001)(71200400001)(66556008)(5660300002)(83380400001)(38070700005)(66946007)(33656002)(7696005)(508600001)(6916009); DIR:OUT; SFP:1101;
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: 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
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-OriginatorOrg: ericsson.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: HE1PR07MB4441.eurprd07.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 695f569b-9514-48ab-3f3a-08d9ae68208a
X-MS-Exchange-CrossTenant-originalarrivaltime: 23 Nov 2021 10:00:49.3199 (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: eWThdSVbbtN8WgwlkBWefpzL50FLS/LD0FMKekJfq82Cpk1G84azo14bcmGIPRsWipLWq0r37B60er/HvGGrxyuW8AetnggFz9764ijXde4=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: HE1PR0701MB2426
Archived-At: <https://mailarchive.ietf.org/arch/msg/mmusic/-UbYXgVPStkemEFGiKkOLk4FGfo>
Subject: Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Considerations) in draft-ietf-mmusic-rfc8843bis-06
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: Tue, 23 Nov 2021 10:00:57 -0000
Hi, >>>1) for some reason, "offer" has been replaced with "Offer" throughout the document. This is a minor nit, but seems incorrect to me. >> >> I did that, because in the previous version we already used "BUNDLE Offer", so I thought I'd do it to be consistent. > > The problem though is that "answer" still is in lowercase so that introduces its own inconsistency. Good catch. I was actually going to change that too, but now realized I forgot to. I have no strong opinion regarding whether we use upper- or lowercase, as long as we are consistent. > Generally I think we should avoid capitalization of common words to avoid confusion. I can change everything to lowercase. --- >>>2) The first two paragraphs of 7.6 say similar things and it's not clear to me why they both exist. Here is my suggested revision: >> >> The first paragraph is more general, while the second paragraph describes how it is realized in SIP. > > Understood, but I feel like that intent was not totally clear in the current text. I am mostly fine with your suggested modification. However, as we don't really talk about "offer semantics" elsewhere in the document, perhaps: "In this situation the endpoint that is not part of a session can receive an SDP offer, created as a subsequent offer, while expecting an initial offer, as described below." Regards, Christer OLD: In some 3rd Party Call Control (3PCC) scenarios a new session will be established between an endpoint that is currently part of an ongoing session and an endpoint that is currently not part of an ongoing session. The endpoint that is part of a session will generate a subsequent SDP Offer that will be forwarded to the other endpoint by a 3PCC controller. The endpoint that is not part of a session will process the Offer as an initial SDP Offer. The Session Initiation Protocol (SIP) [https://datatracker.ietf.org/doc/html/rfc3261] allows a User Agent Client (UAC) to send a re-INVITE request without an SDP body (sometimes referred to as an empty re-INVITE). In such cases, the User Agent Server (UAS) will include an SDP Offer in the associated 200 (OK) response. If the UAS is a part of an ongoing SIP session, it will include a subsequent offer in the 200 (OK) response. The offer will be received by a 3PCC controller (UAC) and then forwarded to another User Agent (UA). If the UA is not part of an ongoing SIP session, it will process the offer as an initial SDP Offer. NEW: In some 3rd Party Call Control (3PCC) scenarios a new session will be established between an endpoint that is currently part of an ongoing session and an endpoint that is not currently part of an ongoing session. In this situation the endpoint that is not part of a session can receive SDP with subsequent offer semantics in an initial SDP Offer, as described below. The Session Initiation Protocol (SIP) [https://datatracker.ietf.org/doc/html/rfc3261] allows a User Agent Client (UAC) to send a re-INVITE request without an SDP body (sometimes referred to as an empty re-INVITE). In such cases, the User Agent Server (UAS) will include an SDP offer in the associated 200 (OK) response, and when the UAS is a part of an ongoing SIP session, this offer will be a subsequent offer. This offer will be received by the 3PCC controller (UAC) and then forwarded to another User Agent (UA). When that UA is not part of an ongoing SIP session, as noted above, it will process the offer as an initial SDP Offer. On Wed, Nov 17, 2021 at 3:16 PM Flemming Andreasen <fandreas=mailto:40cisco.com@dmarc.ietf.org> wrote: Greetings MMUSIC We previously submitted draft-ietf-mmusic-rfc8843bis for publication, however subsequently, the issue of 3rd Party Call Control came up and as a result of that, Section 7.6 has been updated accordingly. We are hereby starting a 1-week WGLC on Section 7.6 only in draft-ietf-mmusic-rfc8843bis-06. If you have any comments on Section 7.6, please send those to the document authors and the MMUSIC mailing list by Wednesday November 24, 2021. If you review it but do not have any comments, please send a note to that effect as well. Thanks -- Flemming (MMUSIC co-chair) _______________________________________________ mmusic mailing list mailto:mmusic@ietf.org https://www.ietf.org/mailman/listinfo/mmusic
- [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Conside… Flemming Andreasen
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Roman Shpount
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Paul Kyzivat
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Paul Kyzivat
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Roman Shpount
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Justin Uberti
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Justin Uberti
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Keith Drage
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Justin Uberti
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Roman Shpount
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Justin Uberti
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Roman Shpount
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Justin Uberti
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Paul Kyzivat
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Roman Shpount
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Paul Kyzivat
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Paul Kyzivat
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Flemming Andreasen
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Roman Shpount
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Paul Kyzivat
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Justin Uberti
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Roman Shpount
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Roman Shpount
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Roman Shpount
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Murray S. Kucherawy
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Murray S. Kucherawy
- Re: [MMUSIC] 1-week WGLC on Section 7.6 (3PCC Con… Christer Holmberg