From owner-freebsd-questions@FreeBSD.ORG Mon Aug 9 03:08:50 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8676C1065672 for ; Mon, 9 Aug 2010 03:08:50 +0000 (UTC) (envelope-from jcw@speakeasy.net) Received: from mail3.sea5.speakeasy.net (mail3.sea5.speakeasy.net [69.17.117.42]) by mx1.freebsd.org (Postfix) with ESMTP id 611B38FC1E for ; Mon, 9 Aug 2010 03:08:50 +0000 (UTC) Received: (qmail 25953 invoked from network); 9 Aug 2010 03:08:49 -0000 Received: from s6.stradamotorsports.com (HELO w20.stradamotorsports.com) (jcw@[64.81.163.124]) (envelope-sender ) by mail3.sea5.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 9 Aug 2010 03:08:49 -0000 Message-ID: <4C5F7141.9030203@speakeasy.net> Date: Sun, 08 Aug 2010 20:08:49 -0700 From: "Jason C. Wells" User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.1.10) Gecko/20100808 Lightning/1.0b1 Thunderbird/3.0.5 MIME-Version: 1.0 To: David Kelly References: <4C55E4B5.7000201@speakeasy.net> <8627B125-F3BB-42B2-98CF-600E21A93A2D@hiwaay.net> <5628C9CD-0F16-4C0E-8B89-B4ECCA35C933@hiwaay.net> In-Reply-To: <5628C9CD-0F16-4C0E-8B89-B4ECCA35C933@hiwaay.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Corey Smith , freebsd-questions@freebsd.org Subject: Re: Typical Network Performance X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Aug 2010 03:08:50 -0000 Seems like someone else got their question answered, but I was able to make use of the tips that were provided. win-win. Thanks for the pointers. By process of elimination (swap cables, swap ports, try different host pairs) I was able to discover that a single server on my home LAN was getting about 1.6% performance compared to other servers getting 94% performance using the 'dd if=/dev/zero bs=1M count=1 | nc servername 2000' technique. netstat -I on the errant server reports no errors. What would be the next step to figuring out why this host's network performance is slow? Regards, Jason C. Wells