Re: [rtcweb] New use case: Large multiparty session

Randell Jesup <randell-ietf@jesup.org> Wed, 03 August 2011 12:52 UTC

Return-Path: <randell-ietf@jesup.org>
X-Original-To: rtcweb@ietfa.amsl.com
Delivered-To: rtcweb@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B14E521F8B2D for <rtcweb@ietfa.amsl.com>; Wed, 3 Aug 2011 05:52:20 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.395
X-Spam-Level:
X-Spam-Status: No, score=-2.395 tagged_above=-999 required=5 tests=[AWL=0.204, BAYES_00=-2.599]
Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Rt9O9nJ4MXAo for <rtcweb@ietfa.amsl.com>; Wed, 3 Aug 2011 05:52:20 -0700 (PDT)
Received: from arthur.webserversystems.com (arthur.webserversystems.com [174.132.191.98]) by ietfa.amsl.com (Postfix) with ESMTP id 4779721F8B2A for <rtcweb@ietf.org>; Wed, 3 Aug 2011 05:52:20 -0700 (PDT)
Received: from pool-98-111-140-38.phlapa.fios.verizon.net ([98.111.140.38] helo=[192.168.1.12]) by arthur.webserversystems.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69) (envelope-from <randell-ietf@jesup.org>) id 1Qoaw3-0002gR-Ca for rtcweb@ietf.org; Wed, 03 Aug 2011 07:52:31 -0500
Message-ID: <4E394434.3040802@jesup.org>
Date: Wed, 03 Aug 2011 08:51:00 -0400
From: Randell Jesup <randell-ietf@jesup.org>
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:5.0) Gecko/20110624 Thunderbird/5.0
MIME-Version: 1.0
To: rtcweb@ietf.org
References: <4E390884.5050909@cs.vu.nl>
In-Reply-To: <4E390884.5050909@cs.vu.nl>
Content-Type: text/plain; charset="ISO-8859-1"; format="flowed"
Content-Transfer-Encoding: 7bit
X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
X-AntiAbuse: Primary Hostname - arthur.webserversystems.com
X-AntiAbuse: Original Domain - ietf.org
X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12]
X-AntiAbuse: Sender Address Domain - jesup.org
X-Source:
X-Source-Args:
X-Source-Dir:
Subject: Re: [rtcweb] New use case: Large multiparty session
X-BeenThere: rtcweb@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Real-Time Communication in WEB-browsers working group list <rtcweb.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/rtcweb>
List-Post: <mailto:rtcweb@ietf.org>
List-Help: <mailto:rtcweb-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 03 Aug 2011 12:52:20 -0000

On 8/3/2011 4:36 AM, Arno Bakker wrote:
> Hi
>
> as proposed in the July 26th meeting I'd like to put forward a new use
> case: assume a client is involved in a large multiparty session but is
> unable (or unwilling) to upload his signals to all participants.
>
> This suggests forwarding support from the network is required, e.g.
> some relay server, multicast, or the future IETF peer-to-peer streaming
> protocol (PPSP).

So the use case is:

User is part of a multiparty (3 or greater) session, but for one of 
several reasons (such as
available upstream bandwidth)  cannot send media to all other 
participants ("mesh" conferencing).
This requires that another node, either a central network node (such as 
a conferencing server)
or another member in the session, relay or mix the user's media to 
distribute to the rest of the
members of the session.

-- 
Randell Jesup
randell-ietf@jesup.org