IETF Logo Mail Archive

Re: [MMUSIC] it's time to expel SDP from our lives

Christer Holmberg <christer.holmberg@ericsson.com> Wed, 14 June 2017 11:05 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 B36FB1292FC for <mmusic@ietfa.amsl.com>; Wed, 14 Jun 2017 04:05:37 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.221
X-Spam-Level:
X-Spam-Status: No, score=-4.221 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
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 hhyNrKH3eqBM for <mmusic@ietfa.amsl.com>; Wed, 14 Jun 2017 04:05:36 -0700 (PDT)
Received: from sessmg23.ericsson.net (sessmg23.ericsson.net [193.180.251.45]) (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 674DA1277BB for <mmusic@ietf.org>; Wed, 14 Jun 2017 04:05:35 -0700 (PDT)
X-AuditID: c1b4fb2d-ef7ff7000000080d-20-5941187c2ab0
Received: from ESESSHC002.ericsson.se (Unknown_Domain [153.88.183.24]) by sessmg23.ericsson.net (Symantec Mail Security) with SMTP id 49.26.02061.C7811495; Wed, 14 Jun 2017 13:05:33 +0200 (CEST)
Received: from ESESSMB109.ericsson.se ([169.254.9.30]) by ESESSHC002.ericsson.se ([153.88.183.24]) with mapi id 14.03.0339.000; Wed, 14 Jun 2017 13:05:32 +0200
From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Iñaki Baz Castillo <ibc@aliax.net>, "Dale R. Worley" <worley@ariadne.com>
CC: "mmusic@ietf.org" <mmusic@ietf.org>
Thread-Topic: [MMUSIC] it's time to expel SDP from our lives
Thread-Index: AQHS5KKhRhapqyXwvUa8fJQ0LD1J8qIkC44AgAA6JQA=
Date: Wed, 14 Jun 2017 11:05:32 +0000
Message-ID: <D566F3B3.1E4DD%christer.holmberg@ericsson.com>
References: <CAOW+2dtgNCDACJxtSt_jeZYiscurJDYQAvNC2RMVOFf1R+Mr5g@mail.gmail.com> <87lgovig3t.fsf@hobgoblin.ariadne.com> <CALiegf=1fwnhdci_Ppk2srxA+RzqsbFMktNsCYDV_K2_mMKg6g@mail.gmail.com>
In-Reply-To: <CALiegf=1fwnhdci_Ppk2srxA+RzqsbFMktNsCYDV_K2_mMKg6g@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
user-agent: Microsoft-MacOutlook/14.7.4.170508
x-originating-ip: [153.88.183.146]
Content-Type: text/plain; charset="iso-8859-1"
Content-ID: <DC19929083922443AC0B5A915080332A@ericsson.com>
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrKIsWRmVeSWpSXmKPExsUyM2K7hG6thGOkQetCSYvp+2wspi5/zGLx 8kSZA7PHuYb37B6T939l9liy5CdTAHMUl01Kak5mWWqRvl0CV8bKKxeZC3azVWzdsoSxgXEG axcjB4eEgInE3PPcXYxcHEICRxglDr6/xQbhLGaUOPr0EgtIEZuAhUT3P+0uRk4OEYEkiZmd x8B6mQXUJa4uDgIJCwtYSzS+mM8CUWIjsfXsTyjbSuL4ngdsIOUsAqoSLT/8QMK8QOVfF29i hth0gFHi/bLvYPWcAoESMxY9ZQaxGQXEJL6fWsMEYjMLiEvcejIfzJYQEJBYsuc8M4QtKvHy 8T+wc0QF9CTe7feECCtJ/NhwiQWiVU/ixtQpbBC2tUTfueusELa2xLKFr5kh7hGUODnzCcsE RvFZSLbNQtI+C0n7LCTts5C0L2BkXcUoWpxaXJybbmSsl1qUmVxcnJ+nl5dasokRGHkHt/zW 3cG4+rXjIUYBDkYlHt7OTQ6RQqyJZcWVuYcYJTiYlUR4Jc4DhXhTEiurUovy44tKc1KLDzFK c7AoifM67LsQISSQnliSmp2aWpBaBJNl4uCUamAM2Fe4jamzr6vY3ij+ou11Na0Ljx77LRH4 7S/aOVWrxdQhvHiR4NKtmT9MeX7/3Zx7Yr8XC8dvpmqHdu4Ne+3b9SN/r5r451DUlwdLF+rP UbR1UsgLeu/qdXvPpmsnt/3aNWm/9nr15/lZW+8tzFBi+7q1rqt8zhJWnamG+XvFl7zPCNH6 +2atEktxRqKhFnNRcSIAb95TTLgCAAA=
Archived-At: <https://mailarchive.ietf.org/arch/msg/mmusic/fPvNeplVzX171JirSHl2pYO4H5g>
Subject: Re: [MMUSIC] it's time to expel SDP from our lives
X-BeenThere: mmusic@ietf.org
X-Mailman-Version: 2.1.22
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: Wed, 14 Jun 2017 11:05:38 -0000

Hi,

>>It may be possible to transition a large section of real-time media away
>> from SDP.  But the way to argue for that is to present the outline of a
>> technical replacement
>
>As said in a previous comments, there is no need for a SDP
>replacement. Nobody is asking for SDP 2.0 but, instead, "define the
>multimedia parameters and let me signal them in my preferred way".

Well, in order to have interoperability, people need to have a common
preferred way. That¹s why we do standardisation.
 
In WebRTC, if people download the same web site, they will automatically
get the same parameter signalling mechanism, no matter whether it¹s
standardised or not. But, if people download different web each may come
with different mechanisms, in which case they won¹t interop.

Regards,

Christer

v2.23.0 | Report a Bug | By Email