From owner-freebsd-net  Mon Mar  3  8:21:31 2003
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id E87B037B401
	for <net@freebsd.org>; Mon,  3 Mar 2003 08:21:29 -0800 (PST)
Received: from wall.polstra.com (wall-gw.polstra.com [206.213.73.130])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 16DD243FA3
	for <net@freebsd.org>; Mon,  3 Mar 2003 08:21:27 -0800 (PST)
	(envelope-from jdp@polstra.com)
Received: from vashon.polstra.com (vashon.polstra.com [206.213.73.13])
	by wall.polstra.com (8.12.3/8.12.3) with ESMTP id h23GLPu5081211
	(version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO);
	Mon, 3 Mar 2003 08:21:25 -0800 (PST)
	(envelope-from jdp@vashon.polstra.com)
Received: (from jdp@localhost)
	by vashon.polstra.com (8.12.6/8.12.6/Submit) id h23GLPVB006964;
	Mon, 3 Mar 2003 08:21:25 -0800 (PST)
	(envelope-from jdp)
Date: Mon, 3 Mar 2003 08:21:25 -0800 (PST)
Message-Id: <200303031621.h23GLPVB006964@vashon.polstra.com>
To: net@freebsd.org
From: John Polstra <jdp@polstra.com>
Cc: lguohan00@mails.tsinghua.edu.cn
Subject: Re: The inflated snd_cwnd doesn't get retracted after TCP recovered from multiple losses (4.5-RELEASE)
In-Reply-To: <007501c2e193$e67589e0$668019d2@garfield>
References: <007501c2e193$e67589e0$668019d2@garfield>
Organization: Polstra & Co., Seattle, WA
Sender: owner-freebsd-net@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-net.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-net>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-net>
X-Loop: FreeBSD.org

In article <007501c2e193$e67589e0$668019d2@garfield>,
Lu Guohan <lguohan00@mails.tsinghua.edu.cn> wrote:

>     When TCP sender receives window update ack during loss
>     recovery, the inflated tp->snd_cwnd doesn't get retracted
>     after TCP recovered from multiple losses.

There were some serious bugs in the TCP implementation in
4.5-RELEASE.  Try upgrading to the latest -stable.

John
-- 
  John Polstra
  John D. Polstra & Co., Inc.                        Seattle, Washington USA
  "Disappointment is a good sign of basic intelligence."  -- Chögyam Trungpa


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-net" in the body of the message