Re: [MMUSIC] RTSP 2.0: Section 18.20: Sequence numbering.

Magnus Westerlund <magnus.westerlund@ericsson.com> Thu, 10 October 2013 09:30 UTC

Return-Path: <magnus.westerlund@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 9DF9721E80E3 for <mmusic@ietfa.amsl.com>; Thu, 10 Oct 2013 02:30:38 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -105.086
X-Spam-Level:
X-Spam-Status: No, score=-105.086 tagged_above=-999 required=5 tests=[AWL=1.163, BAYES_00=-2.599, HELO_EQ_SE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100]
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 8fzbXTdILDtV for <mmusic@ietfa.amsl.com>; Thu, 10 Oct 2013 02:30:32 -0700 (PDT)
Received: from mailgw1.ericsson.se (mailgw1.ericsson.se [193.180.251.45]) by ietfa.amsl.com (Postfix) with ESMTP id 8C45021F9FE9 for <mmusic@ietf.org>; Thu, 10 Oct 2013 02:30:30 -0700 (PDT)
X-AuditID: c1b4fb2d-b7f738e000003ee3-97-525673b5e860
Received: from ESESSHC020.ericsson.se (Unknown_Domain [153.88.253.125]) by mailgw1.ericsson.se (Symantec Mail Security) with SMTP id AA.B2.16099.5B376525; Thu, 10 Oct 2013 11:30:29 +0200 (CEST)
Received: from [127.0.0.1] (153.88.183.153) by smtp.internal.ericsson.com (153.88.183.80) with Microsoft SMTP Server id 14.2.328.9; Thu, 10 Oct 2013 11:27:06 +0200
Message-ID: <5256732A.1060708@ericsson.com>
Date: Thu, 10 Oct 2013 11:28:10 +0200
From: Magnus Westerlund <magnus.westerlund@ericsson.com>
User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20130801 Thunderbird/17.0.8
MIME-Version: 1.0
To: Ross Finlayson <finlayson@live555.com>
References: <1381331780.13277.72869.camel@mightyatom> <F27DA14D-E691-4688-B1E4-8CB0395638D6@live555.com>
In-Reply-To: <F27DA14D-E691-4688-B1E4-8CB0395638D6@live555.com>
X-Enigmail-Version: 1.5.2
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 8bit
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupnluLIzCtJLcpLzFFi42KZGfG3VndrcViQwd/JUhZTG/+zWkxd/pjF gcljyZKfTB6rl/xhDWCK4rJJSc3JLEst0rdL4Mpob17FWPCaveLK+9fsDYzb2boYOTkkBEwk 7k86xQhhi0lcuLceKM7FISRwmFHi5OLd7BDOckaJAxOvgXXwCmhLrLy8iB3EZhFQlZjdeRbM ZhOwkLj5oxGsRlQgWKJ9+1eoekGJkzOfsHQxcnCICGhJXJ1UAxJmFlCX6PndwgxiCws4SZxv 2ccEUiIkkCHxsdUUJMwpYC/R8XQW1J2SEtsWHWOHaNWTmHK1hRHClpdo3jobbIwQ0GUNTR2s ExiFZiFZPAtJyywkLQsYmVcxsucmZuaklxtuYgQG6sEtv3V3MJ46J3KIUZqDRUmc98Nb5yAh gfTEktTs1NSC1KL4otKc1OJDjEwcnFINjKVCEzS/OUTXmF7mnll0T99Vy3Txkfuf/N+cmj17 oo1DYNJjy6v5TgsPzlbnvLim//2NUBn/3cdeOk6WaRQ4b9H5NfQ+8/SP22Yf3ipTvfwm+6I6 RfmnKVG1XExBjN1MK+f/dquMY9y13Hr19zRN5vW72nPNvV8/iF44r87gbs3+t4HaOwzbNZRY ijMSDbWYi4oTAYDBIdgiAgAA
Cc: "mmusic (E-mail)" <mmusic@ietf.org>
Subject: Re: [MMUSIC] RTSP 2.0: Section 18.20: Sequence numbering.
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: Thu, 10 Oct 2013 09:30:38 -0000

On 2013-10-10 00:35, Ross Finlayson wrote:
>> Anyway, I think that this section needs another pass to sort out the
>> inconsistencies.
> 
> Or else get rid of the "CSeq" field altogether...

I don't think that helps. Then we get another set of problems related to
how an originating agent maps requests to responses. Especially in the
relation to proxies. For example you can't have an client use one proxy
and establish two RTSP session with different servers at the same time
without running into blocking issues.

Cheers

Magnus Westerlund

----------------------------------------------------------------------
Multimedia Technologies, Ericsson Research EAB/TVM
----------------------------------------------------------------------
Ericsson AB                | Phone  +46 10 7148287
Färögatan 6                | Mobile +46 73 0949079
SE-164 80 Stockholm, Sweden| mailto: magnus.westerlund@ericsson.com
----------------------------------------------------------------------