From owner-freebsd-net@FreeBSD.ORG Fri Sep 17 23:11:16 2004 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DB73716A4CF for ; Fri, 17 Sep 2004 23:11:16 +0000 (GMT) Received: from c00l3r.networx.ch (c00l3r.networx.ch [62.48.2.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id 01D4343D49 for ; Fri, 17 Sep 2004 23:11:16 +0000 (GMT) (envelope-from andre@freebsd.org) Received: (qmail 20656 invoked from network); 17 Sep 2004 23:06:05 -0000 Received: from dotat.atdotat.at (HELO [62.48.0.47]) ([62.48.0.47]) (envelope-sender ) by c00l3r.networx.ch (qmail-ldap-1.03) with SMTP for ; 17 Sep 2004 23:06:05 -0000 Message-ID: <414B6F11.5070902@freebsd.org> Date: Sat, 18 Sep 2004 01:11:13 +0200 From: Andre Oppermann User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8a1) Gecko/20040520 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Raphael H. Becker" References: <20040917104356.E55054@p-i-n.com> <414ADD15.FAC42CDB@freebsd.org> <20040917231922.G55054@p-i-n.com> <414B567C.9060904@freebsd.org> <414B5777.1030901@freebsd.org> <20040918000303.J55054@p-i-n.com> In-Reply-To: <20040918000303.J55054@p-i-n.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-net@freebsd.org cc: freebsd-current@freebsd.org Subject: Re: Strange things on GBit / 1000->100 / net.inet.tcp.inflight.* X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Sep 2004 23:11:17 -0000 Raphael H. Becker wrote: > On Fri, Sep 17, 2004 at 11:30:31PM +0200, Andre Oppermann wrote: > > rebooted the "source"-machine to get a defined state. > Did reboot before the last test, too. > > >>And could you do this on the 5.3 machine: >> # sysctl net.inet.tcp.rfc3042=0 > > > net.inet.tcp.rfc3042: 1 -> 0 > > wget on target: > Length: 1,160,773,632 (unauthoritative) > > 1% [ ] 12,967,976 325.72K/s ETA 57:21^C I've somewhat rebuild the test setup with my workstation dual Opteron running 6-current and a 4.10 VIA C3-800 on the other side. A Cisco 2950 in between. On the GigE side I have a bge interface and fxp on the C3. When doing an ftp of the second FreeBSD 5.3-BETA4-i386-disc2.iso (~280MB) from the Opteron to the C3 I get a nice transfer speed of about 10.3MB/s. Which is about as much as one can get considering the little C3 and it's poor IDE disk. I've tried ftp the 'active' and 'passive' mode way to rule out that the direction of TCP connection setup could play a role. It doesn't. Same speed both times. Second try with a Netgear FSM726S. Full speed again. No problems. I'm unable to reproduce your problem. Usually in these cases there is an ethernet duplex mismatch somewhere. Can set the network cards and the switches to fixed 1000 or 100 full-duplex? -- Andre