From owner-freebsd-ipfw@FreeBSD.ORG Sat Mar 12 12:49:24 2005 Return-Path: Delivered-To: freebsd-ipfw@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1633616A4CE for ; Sat, 12 Mar 2005 12:49:24 +0000 (GMT) Received: from r2d2.reverse.net (r2d2.reverse.net [66.225.223.4]) by mx1.FreeBSD.org (Postfix) with ESMTP id AF4C643D46 for ; Sat, 12 Mar 2005 12:49:23 +0000 (GMT) (envelope-from mcgehrin@reverse.net) Received: from orange (mx2.reverse.net [66.225.223.254]) by r2d2.reverse.net (Postfix) with SMTP id C26661001E for ; Sat, 12 Mar 2005 07:49:22 -0500 (EST) Message-ID: <002401c52701$eb25c9e0$af00a8c0@orange> From: "Matthew McGehrin" To: References: Date: Sat, 12 Mar 2005 07:49:23 -0500 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2527 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 Subject: Re: why my dummynet queue not work?: TCP Tuning Guide X-BeenThere: freebsd-ipfw@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: Matthew McGehrin List-Id: IPFW Technical Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Mar 2005 12:49:24 -0000 http://www-didc.lbl.gov/TCP-tuning/ sysctl -w kern.ipc.maxsockbuf=8388608 sysctl -w net.inet.tcp.rfc1323=1 sysctl -w net.inet.tcp.sendspace=1048576 sysctl -w net.inet.tcp.recvspace=1048576 ----- Original Message ----- From: "jim song" To: Sent: Thursday, March 10, 2005 11:03 PM Subject: why my dummynet queue not work? > The problem is that the tcp throughput through this router could not > reach reasonable value. I can only get 5Mbps throughputs. (I have set the > tcp > window to 5MBytes already). It seems like that the queue parameter > doesnot work. Because if it works, the throughputs will go up to the > bandwidth limitation.