IETF Logo Mail Archive

Re: [PCN] Redundant aggregate reservations: draft-ietf-tsvwg-rsvp-pcn-03

Tom Taylor <tom.taylor.stds@gmail.com> Thu, 15 November 2012 16:42 UTC

Return-Path: <tom.taylor.stds@gmail.com>
X-Original-To: pcn@ietfa.amsl.com
Delivered-To: pcn@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C9BEA21F86D1; Thu, 15 Nov 2012 08:42:56 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.949
X-Spam-Level:
X-Spam-Status: No, score=-2.949 tagged_above=-999 required=5 tests=[AWL=0.650, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1]
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 pXZr6AGSG2sg; Thu, 15 Nov 2012 08:42:56 -0800 (PST)
Received: from mail-ie0-f172.google.com (mail-ie0-f172.google.com [209.85.223.172]) by ietfa.amsl.com (Postfix) with ESMTP id 23CA921F869B; Thu, 15 Nov 2012 08:42:56 -0800 (PST)
Received: by mail-ie0-f172.google.com with SMTP id 9so2692324iec.31 for <multiple recipients>; Thu, 15 Nov 2012 08:42:55 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding :x-antivirus:x-antivirus-status; bh=2cZm8Yo1jgdg9mjfF+JxotGUnDMp2wvcDkrzFWrLPWU=; b=Gr6TImeq/0L35brJcJncnJFuW332vUfieD1rtHI2z81XEEATy3SWbD2D1Usa7BzSmI 5huiAqqgvY8RwV766M21MlLRndHP6tVl8JCgScpvup/EV/kmkxRnZIj5hJSIDIXYQo8N HGk5AtnH/IWe0po2C1+HSKlwMUePheSTwAsL8fvALjrz/iV7KuiOiUi536By5lWKcOuf W3e1UUqlM49ZtSyHAcCsM6dt9OKIa9S42lH67uMoOqeG3O3oxRTlowz8jdOo8orLsBXA VCrmetiIFOjOHXYbXqp4c0XJ3mKpAs8Q5j13ObNGSD+Inp3sdgXT9nzw2kNXl/aJAx0L iyng==
Received: by 10.50.152.196 with SMTP id va4mr615332igb.13.1352997775618; Thu, 15 Nov 2012 08:42:55 -0800 (PST)
Received: from [127.0.0.1] (dsl-173-206-12-215.tor.primus.ca. [173.206.12.215]) by mx.google.com with ESMTPS id bg10sm3996238igc.6.2012.11.15.08.42.53 (version=SSLv3 cipher=OTHER); Thu, 15 Nov 2012 08:42:54 -0800 (PST)
Message-ID: <50A51B8C.4010806@gmail.com>
Date: Thu, 15 Nov 2012 11:42:52 -0500
From: Tom Taylor <tom.taylor.stds@gmail.com>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20121026 Thunderbird/16.0.2
MIME-Version: 1.0
To: Bob Briscoe <bob.briscoe@bt.com>
References: <87222982-329F-43DF-BFD8-9D3705AFE101@mimectl> <E728D0E3C41E644A96A7CCA61863BED4081DE009@xmb-aln-x12.cisco.com> <201211141251.qAECpsn0005426@bagheera.jungle.bt.co.uk> <FF1A9612A94D5C4A81ED7DE1039AB80F2ED8FEDF@EXMBX04.ad.utwente.nl> <201211151307.qAFD7RA0009392@bagheera.jungle.bt.co.uk>
In-Reply-To: <201211151307.qAFD7RA0009392@bagheera.jungle.bt.co.uk>
Content-Type: text/plain; charset="ISO-8859-1"; format="flowed"
Content-Transfer-Encoding: 7bit
X-Antivirus: avast! (VPS 121115-0, 15/11/2012), Outbound message
X-Antivirus-Status: Clean
Cc: PCN IETF list <pcn@ietf.org>, anuragb@cisco.com, tsvwg@ietf.org, rsvp-dir@ietfa.amsl.com
Subject: Re: [PCN] Redundant aggregate reservations: draft-ietf-tsvwg-rsvp-pcn-03
X-BeenThere: pcn@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: PCN WG list <pcn.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/pcn>, <mailto:pcn-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/pcn>
List-Post: <mailto:pcn@ietf.org>
List-Help: <mailto:pcn-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/pcn>, <mailto:pcn-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 15 Nov 2012 16:42:56 -0000

I'm not sure the semantics of the PCN information -- particularly as it 
relates to flow termination -- are correct without some sort of concept 
of aggregation. Or can you really define an RSVP object that has 
semantics "Never mind the SESSION in this message, I'm related to every 
flow with the same first hop"?

On 15/11/2012 8:07 AM, Bob Briscoe wrote:
> Georgios, Anurag,
>
> Below is the main point of my review, arguing that aggregate
> reservations are redundant. I'm reviewing as:
> - a member of the RSVP directorate
> - one of the early PCN design team
> - a co-author of draft-lefaucheur-rsvp-ecn-01, on which this draft is
> based.
>
> I would have missed any decision to use aggregate reservations. Pls
> point me to the relevant discussion (e.g. Subject line / date).
>
...

v2.23.0 | Report a Bug | By Email