From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 9 Jan 2001 13:36:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 9 Jan 2001 13:36:24 -0500 Received: from smtpgw.bnl.gov ([130.199.3.16]:2060 "EHLO smtpgw.sec.bnl.local") by vger.kernel.org with ESMTP id ; Tue, 9 Jan 2001 13:36:13 -0500 Date: Tue, 9 Jan 2001 13:35:21 -0500 From: Tim Sailer To: Martin Josefsson Cc: Erik Mouw , Andrew Morton , linux-kernel@vger.kernel.org, jfung@bnl.gov Subject: Re: Network Performance? Message-ID: <20010109133521.C32135@bnl.gov> In-Reply-To: <20010109085555.A28548@bnl.gov> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.12i In-Reply-To: ; from gandalf@wlug.westbo.se on Tue, Jan 09, 2001 at 05:52:34PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 09, 2001 at 05:52:34PM +0100, Martin Josefsson wrote: > On Tue, 9 Jan 2001, Tim Sailer wrote: > > > On Mon, Jan 08, 2001 at 07:07:18PM +0100, Erik Mouw wrote: > > > I had similar problems two weeks ago. Turned out the connection between > > > two switches: one of them was hard wired to 100Mbit/s full duplex, the > > > other one to 100Mbit/s half duplex. Just to rule out the obvious... > > > > We check that as the first thing. Both are set the same. No collisions > > out of the ordinary. > > Are you using netfilter? And if so, does netfilter support window-scaling Nope. We have it stripped down bare at this point to try to pinpoint the problem. Tim > without the tcp-window-tracking patch? > > /Martin -- Tim Sailer Cyber Security Operations Brookhaven National Laboratory (631) 344-3001 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/