[Gen-art] Gen-Art review of draft-ietf-bmwg-dsmterm-12.txt (Informational)
Scott W Brim <swb@employees.org> Thu, 01 June 2006 11:35 UTC
Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FllSh-0003NV-Ua; Thu, 01 Jun 2006 07:35:35 -0400
Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FllSh-0003It-1E for gen-art@ietf.org; Thu, 01 Jun 2006 07:35:35 -0400
Received: from willers.employees.org ([192.83.249.36]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FllSf-0006sm-Ng for gen-art@ietf.org; Thu, 01 Jun 2006 07:35:35 -0400
Received: from [10.86.242.113] (bxb-natpool-121.cisco.com [12.159.148.121]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by willers.employees.org (Postfix) with ESMTP id 464055CCA0; Thu, 1 Jun 2006 04:35:32 -0700 (PDT)
Message-ID: <447ED102.30901@employees.org>
Date: Thu, 01 Jun 2006 07:35:30 -0400
From: Scott W Brim <swb@employees.org>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.2) Gecko/20060308 Thunderbird/1.5.0.2 Mnenhy/0.7.4.0
MIME-Version: 1.0
To: jperser@veriwave.com, sporetsky@reefpoint.com, shobha@qnetworx.com, sumit@research.telcordia.com, Al Morton <acmorton@att.com>, General Area Review Team <gen-art@ietf.org>, David Kessens <david.kessens@nokia.com>
X-Enigmail-Version: 0.94.0.0
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 7bit
X-Spam-Score: 0.0 (/)
X-Scan-Signature: 5a9a1bd6c2d06a21d748b7d0070ddcb8
Cc:
Subject: [Gen-art] Gen-Art review of draft-ietf-bmwg-dsmterm-12.txt (Informational)
X-BeenThere: gen-art@ietf.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "GEN-ART: General Area Review Team" <gen-art.ietf.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/gen-art>, <mailto:gen-art-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www1.ietf.org/pipermail/gen-art>
List-Post: <mailto:gen-art@ietf.org>
List-Help: <mailto:gen-art-request@ietf.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/gen-art>, <mailto:gen-art-request@ietf.org?subject=subscribe>
Errors-To: gen-art-bounces@ietf.org
Oops, I missed this one. I hope this late comment is useful in some way. Gen-Art front boilerplate: I am the assigned Gen-ART reviewer for draft-ietf-bmwg-dsmterm-12.txt. For background on Gen-ART, please see the FAQ at <http://www.alvestrand.no/ietf/gen/art/gen-art-FAQ.html>. Please wait for direction from your document shepherd or AD before posting a new version of the draft. Review summary: This draft is basically ready but has nits. Review comments: In addition to what others have already said, consider 3.1.1 Classification Definition: Selection of packets based on the contents of packet header according to defined rules. Discussion: Packets can be selected based on the DS field or IP Precedence in the packet header. Classification can also be based on Multi-Field (MF) criteria such as IP Source and destination addresses, protocol and port number. Classification determines the per-hop behaviors and traffic conditioning functions such as shaping and dropping that are to be applied to the packet. The abstract says this draft is about "devices that implement traffic control based on IP precedence or diff-serv code point criteria." I see from the above Section 3.1.1 that such devices could use more than the diffserv field. That's better, but then you limit what can be used to just the packet header. In fact **classification** can be done on anything, including what's in the payload, for example whether a packet is HTTP. It can even be done on input interface (real and/or virtual), etc. What do you think of generalizing the definition to something simple such as "selection of packets according to defined rules", and then add another phrase to the first paragraph of the discussion, for example "or fields in the packet payload". One more comment: 3.2.1 Forwarding Capacity I don't see anywhere where time interval is brought into play -- do you distinguish between measurements over short versus "long" amounts of time (burst versus sustained)? Thanks ... Scott _______________________________________________ Gen-art mailing list Gen-art@ietf.org https://www1.ietf.org/mailman/listinfo/gen-art
- [Gen-art] Gen-Art review of draft-ietf-bmwg-dsmteā¦ Scott W Brim