Re: [MMUSIC] Draft new version: draft-ietf-mmusic-sdp-bundle-negotiation-06

Colin Perkins <csp@csperkins.org> Wed, 09 April 2014 20:39 UTC

Return-Path: <csp@csperkins.org>
X-Original-To: mmusic@ietfa.amsl.com
Delivered-To: mmusic@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4380A1A031E for <mmusic@ietfa.amsl.com>; Wed, 9 Apr 2014 13:39:45 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9] autolearn=ham
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 y6P3vG99IM3v for <mmusic@ietfa.amsl.com>; Wed, 9 Apr 2014 13:39:41 -0700 (PDT)
Received: from haggis.mythic-beasts.com (haggis.mythic-beasts.com [IPv6:2a00:1098:0:86:1000:0:2:1]) by ietfa.amsl.com (Postfix) with ESMTP id DC4B11A02B3 for <mmusic@ietf.org>; Wed, 9 Apr 2014 13:39:40 -0700 (PDT)
Received: from [81.187.2.149] (port=38919 helo=[192.168.0.15]) by haggis.mythic-beasts.com with esmtpsa (TLS1.0:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from <csp@csperkins.org>) id 1WXzHT-0001rR-0i; Wed, 09 Apr 2014 21:39:38 +0100
Content-Type: text/plain; charset="windows-1252"
Mime-Version: 1.0 (Mac OS X Mail 7.2 \(1874\))
From: Colin Perkins <csp@csperkins.org>
In-Reply-To: <CABkgnnXLKCg5EKJY=MybtXA97npF4mNMZKKaX3WnwW7nBA_wVg@mail.gmail.com>
Date: Wed, 09 Apr 2014 21:39:31 +0100
Content-Transfer-Encoding: quoted-printable
Message-Id: <B9D938B4-3E3B-469E-B756-E8B18B12F867@csperkins.org>
References: <7594FB04B1934943A5C02806D1A2204B1D2AB260@ESESSMB209.ericsson.se> <51F4517A-9FED-4880-9495-28A5A53192ED@csperkins.org> <CABkgnnWo_nREv_XzzwSL+pGezDPvnxM3rB1_HVgqQkp9wYFPRg@mail.gmail.com> <7594FB04B1934943A5C02806D1A2204B1D2BA456@ESESSMB209.ericsson.se> <CABkgnnXLKCg5EKJY=MybtXA97npF4mNMZKKaX3WnwW7nBA_wVg@mail.gmail.com>
To: Martin Thomson <martin.thomson@gmail.com>
X-Mailer: Apple Mail (2.1874)
X-BlackCat-Spam-Score: -28
X-Mythic-Debug: Threshold = On =
Archived-At: http://mailarchive.ietf.org/arch/msg/mmusic/GejEnw6AHDikMaf6sX81hYp4P7g
Cc: "mmusic (E-mail)" <mmusic@ietf.org>, Christer Holmberg <christer.holmberg@ericsson.com>
Subject: Re: [MMUSIC] Draft new version: draft-ietf-mmusic-sdp-bundle-negotiation-06
X-BeenThere: mmusic@ietf.org
X-Mailman-Version: 2.1.15
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: Wed, 09 Apr 2014 20:39:45 -0000

On 9 Apr 2014, at 20:49, Martin Thomson <martin.thomson@gmail.com> wrote:
> On 9 April 2014 11:40, Christer Holmberg <christer.holmberg@ericsson.com> wrote:
>>>> On 9 April 2014 03:55, Colin Perkins <csp@csperkins.org> wrote:
>>>> Multiple BUNDLE groups will form
>>>>   multiple RTP sessions, one per bundle group.
>>> 
>>> ...unless they happen to be the same RTP session seen from different perspectives.
>> 
>> Not sure I understand.
> 
> The definition of RTP session is such that you could be seeing the
> same session on two 5 tuples and yet be ignorant of this fact.
> 
> a  a
> \ /
>  |
>  b

Right. A better phrasing might be “Disjoint BUNDLE groups will form multiple RTP sessions, one per bundle group”?

-- 
Colin Perkins
http://csperkins.org/