From owner-freebsd-ipfw@FreeBSD.ORG Fri Sep 14 14:12:28 2012 Return-Path: Delivered-To: freebsd-ipfw@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 5EE691065675 for ; Fri, 14 Sep 2012 14:12:28 +0000 (UTC) (envelope-from dreijer@echobit.net) Received: from mail-ob0-f182.google.com (mail-ob0-f182.google.com [209.85.214.182]) by mx1.freebsd.org (Postfix) with ESMTP id 165038FC0A for ; Fri, 14 Sep 2012 14:12:27 +0000 (UTC) Received: by obbun3 with SMTP id un3so7828505obb.13 for ; Fri, 14 Sep 2012 07:12:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :x-gm-message-state; bh=mn6c/dETvz/3/jaZnbq2uim+qOki5OV8YhbmIIUS7Zs=; b=WuUBYvqU74GbvlI00risGTpmQruwtowSOAHQyhL+RI6XxK2il0QSoPCYXFAoFbClAV zmemAVPptZF3SKR/HTO4jLMVIp5x7scPa1hlSF/eqqiWeQJ076tvoEP2fNYjYTNFfED/ 67ghagORTE0q/3XeP8ptm2yPhekJO8ZeCwX3tSfoxNOqsybwKOQo4JovjRsNM/2UtGyD cWPLux28S6R0IQUNIIfBly1Be5rMyQbyAyR79Ca56FgTY+WfI0CfDIE3qW+UIEGqHLpY 3iP6S5dS1A/4X+weP7ryDehZzG1IiRTCMrCowpGgeuOoZnFXQrL9tv9XuU8w+11065h3 DQJw== MIME-Version: 1.0 Received: by 10.60.4.163 with SMTP id l3mr3328948oel.74.1347631947388; Fri, 14 Sep 2012 07:12:27 -0700 (PDT) Sender: dreijer@echobit.net Received: by 10.76.99.75 with HTTP; Fri, 14 Sep 2012 07:12:27 -0700 (PDT) In-Reply-To: <20120914144529.R51539@sola.nimnet.asn.au> References: <20120913221758.E51539@sola.nimnet.asn.au> <20120913163013.GA22049@onelab2.iet.unipi.it> <20120913174612.GB22571@onelab2.iet.unipi.it> <20120914144529.R51539@sola.nimnet.asn.au> Date: Fri, 14 Sep 2012 09:12:27 -0500 X-Google-Sender-Auth: 08w8U61NJi5fgrGY3nmczrSXl94 Message-ID: From: Soren Dreijer To: Ian Smith Content-Type: text/plain; charset=ISO-8859-1 X-Gm-Message-State: ALoCoQkzkxZ8SvxIV7PmmreOdzr2q+8slVcEgvx0yXV5ibXsUQIEmWzITiWHkRoLs9tEKiIWD8gO Cc: freebsd-ipfw@freebsd.org, Luigi Rizzo Subject: Re: Significant network latency when using ipfw and in-kernel NAT X-BeenThere: freebsd-ipfw@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: IPFW Technical Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Sep 2012 14:12:28 -0000 Can anybody confirm that disabling these other options (rxcsum, txcsum, vlanmtu, vlanhwtag, vlanhwfilter, vlanhwtso) won't cause my adapter to lose its connectivity? This is a server in production and I'd rather not cause an outage if I can prevent it. :) On Fri, Sep 14, 2012 at 12:00 AM, Ian Smith wrote: > On Thu, 13 Sep 2012 12:37:23 -0500, Soren Dreijer wrote: > [Luigi Rizzo wrote:] > > > i'd start by disabling all accelerations (and jumobgrams) > > > and then move on from the results to figure out where is the problem. > > > > So, I went ahead and disabled TSO on ix0. That seemed to fix the > > intermittent connection issues I had been experiencing with keeping an > > XMPP connection alive to one of our internal boxes. It hasn't done > > anything for the ICMPs or TCP traffic originating from the FreeBSD > > box, of course. > > Please show ifconfig for ix0 and ix1 again after disabling tso, > rxcsum, txcsum, vlanmtu, vlanhwtag, vlanhwfilter, vlanhwtso > and any other configured accelerations, as Luigi recommended? > > Then we'd know if your problem was related to any of that, or not. > > cheers, Ian