IETF Logo Mail Archive

[Diffserv-interest] congestion in diffserv network

"Feng Y" <feng6@uwindsor.ca> Tue, 28 October 2003 16:28 UTC

Received: from optimus.ietf.org (ietf.org [132.151.1.19] (may be forged)) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA05509 for <diffserv-interest-archive@odin.ietf.org>; Tue, 28 Oct 2003 11:28:23 -0500 (EST)
Received: from localhost.localdomain ([127.0.0.1] helo=www1.ietf.org) by optimus.ietf.org with esmtp (Exim 4.20) id 1AEWhQ-00014Z-1N for diffserv-interest-archive@odin.ietf.org; Tue, 28 Oct 2003 11:28:04 -0500
Received: (from exim@localhost) by www1.ietf.org (8.12.8/8.12.8/Submit) id h9SGS3Vr004101 for diffserv-interest-archive@odin.ietf.org; Tue, 28 Oct 2003 11:28:03 -0500
Received: from localhost.localdomain ([127.0.0.1] helo=www1.ietf.org) by optimus.ietf.org with esmtp (Exim 4.20) id 1AEWhN-00013W-Hc; Tue, 28 Oct 2003 11:28:01 -0500
Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by optimus.ietf.org with esmtp (Exim 4.20) id 1AEWhG-00012K-ES for diffserv-interest@optimus.ietf.org; Tue, 28 Oct 2003 11:27:54 -0500
Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA05401 for <diffserv-interest@ietf.org>; Tue, 28 Oct 2003 11:27:42 -0500 (EST)
Received: from ietf-mx ([132.151.6.1]) by ietf-mx with esmtp (Exim 4.12) id 1AEWhF-000042-00 for diffserv-interest@ietf.org; Tue, 28 Oct 2003 11:27:53 -0500
Received: from firewall2.uwindsor.ca ([137.207.233.22] helo=internet2.uwindsor.ca) by ietf-mx with smtp (Exim 4.12) id 1AEWhE-00003x-00 for diffserv-interest@ietf.org; Tue, 28 Oct 2003 11:27:52 -0500
Received: id LAA01075; Tue, 28 Oct 2003 11:01:45 -0500
Received: by gateway id 28942808 for <diffserv-interest@ietf.org>; Tue, 28 Oct 2003 10:43:27 -0500
From: Feng Y <feng6@uwindsor.ca>
To: diffserv-interest@ietf.org
X-Mailer: CommuniGate Pro Web Mailer v.4.0.6
Date: Tue, 28 Oct 2003 10:43:27 -0500
Message-ID: <web-28942808@uwindsor.ca>
MIME-Version: 1.0
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: quoted-printable
X-MIME-Autoconverted: from 8bit to quoted-printable by ietf.org id LAA05402
Subject: [Diffserv-interest] congestion in diffserv network
Sender: diffserv-interest-admin@ietf.org
Errors-To: diffserv-interest-admin@ietf.org
X-BeenThere: diffserv-interest@ietf.org
X-Mailman-Version: 2.0.12
Precedence: bulk
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/diffserv-interest>, <mailto:diffserv-interest-request@ietf.org?subject=unsubscribe>
List-Id: Differentiated services general discussion <diffserv-interest.ietf.org>
List-Post: <mailto:diffserv-interest@ietf.org>
List-Help: <mailto:diffserv-interest-request@ietf.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/diffserv-interest>, <mailto:diffserv-interest-request@ietf.org?subject=subscribe>
Content-Transfer-Encoding: quoted-printable

Hi,

Recently, I have read a paper about admission control in
Diffserv network. In the paper the author mentioned the
well-know diffserv “traffic overloading and internal
network state changing” problem. I wonder why the
overloading or even congestion occurs in diffserv network.
In diffserv architecture, the “DS ingress node is
responsible for ensuring that the traffic entering the DS
domain conforms to any traffic conditioning agreement (TCA)
between it and the other domain to which the ingress node
is connected” [RFC 2475]. Moreover,   “Traffic conditioning
performs metering, shaping, policing and/or re-marking to
ensure that the traffic entering the DS domain conforms to
the rules specified in the TCA, in accordance with the
domain's service provisioning policy”. So what causes the
overloading or congestion in diffserv? Does anyone explain
it for me or give me some references. Thanks in advance.

Yang

_______________________________________________
Diffserv-interest mailing list
Diffserv-interest@ietf.org
https://www1.ietf.org/mailman/listinfo/diffserv-interest

v2.23.0 | Report a Bug | By Email