From owner-freebsd-net@FreeBSD.ORG Mon Aug 6 14:06:44 2007 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3998016A41A for ; Mon, 6 Aug 2007 14:06:44 +0000 (UTC) (envelope-from daniel@dgnetwork.com.br) Received: from mail.mastercabo.com.br (mail.mastercabo.com.br [200.179.179.14]) by mx1.freebsd.org (Postfix) with SMTP id 38B3E13C4CE for ; Mon, 6 Aug 2007 14:06:42 +0000 (UTC) (envelope-from daniel@dgnetwork.com.br) Received: (qmail 71346 invoked by uid 1008); 6 Aug 2007 14:02:57 -0000 X-Spam-Checker-Version: SpamAssassin 3.1.7-unknown (2006-10-05) on srvmail1 X-Spam-Level: X-Spam-Status: No, score=0.8 required=4.7 tests=AWL,BAYES_00,RCVD_IN_XBL autolearn=no version=3.1.7-unknown Received: from unknown (HELO ?127.0.0.1?) (daniel@dgnetwork.com.br@200.251.26.17) by mail.mastercabo.com.br with SMTP; 6 Aug 2007 14:02:51 -0000 Message-ID: <46B72AB6.6030603@dgnetwork.com.br> Date: Mon, 06 Aug 2007 11:05:42 -0300 From: =?UTF-8?B?RGFuaWVsIERpYXMgR29uw6dhbHZlcw==?= Organization: DGNET Network Solutions User-Agent: Thunderbird 1.5.0.12 (Windows/20070509) MIME-Version: 1.0 To: freebsd-net@freebsd.org, freebsd-bugs@freebsd.org References: <200512270905.jBR95qod022904@freefall.freebsd.org> <46B212A3.7040603@yan.com.br> <20070803082622.GZ21312@glebius.int.ru> <46B627AD.1040304@gmail.com> In-Reply-To: <46B627AD.1040304@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Antivirus: avast! (VPS 000763-6, 06/08/2007), Outbound message X-Antivirus-Status: Clean Cc: Sten Daniel Soersdal Subject: Re: kern/78791: [xl] xl(4) input errors and speed problem X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: daniel@dgnetwork.com.br List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 06 Aug 2007 14:06:44 -0000 Sten Daniel Soersdal escreveu: > Gleb Smirnoff wrote: >> On Thu, Aug 02, 2007 at 02:21:39PM -0300, Daniel Dias Gon?alves wrote: >> D> > State-Changed-From-To: open->feedback >> D> > State-Changed-By: glebius >> D> > State-Changed-When: Tue Dec 27 09:03:50 UTC 2005 >> D> > State-Changed-Why: Please provide the following information. Is >> this one D> > particular card >> D> > that experiences errors, or you have tested several 3Com cards >> and all >> D> > fail? >> D> > >> D> I have same problem, and is not only with card 3com (xl), also >> with Intel D> card (fxp). >> D> In my servers running FreeBSD 6.1, have constant traffic of >> +-80mbps and D> "input errors" (netstat - ni) always increases, use >> crossover cables and the D> interfaces fixed "100baseTX-FDX". >> D> Frequently with Intel card (fxp), i have that to make ifconfig >> DOWN/UP in D> the interface to come back to work. >> D> D> Which the solution for these problems ? >> >> I think the problem, you've described isn't the same problem as in >> kern/78791. >> > > I haven't used this card in a long time and i don't know if TX/RX > checksum offloading is supported in the FreeBSD driver. Just to sum up > my findings. > > Checksum offloading is bugged, even on windows drivers. Disabling > checksum offloading has always resulted in much better performance. > > Also, when you say using "100baseTX-FDX" you mean between the servers > and not via a switch, right? > Yes, not via a switch. -- Daniel D. G.