From owner-freebsd-stable Fri Jul 28 22:22:49 2000 Delivered-To: freebsd-stable@freebsd.org Received: from cage.simianscience.com (cage.simianscience.com [64.7.134.1]) by hub.freebsd.org (Postfix) with ESMTP id D282437BBA9 for ; Fri, 28 Jul 2000 22:22:40 -0700 (PDT) (envelope-from mike@sentex.net) Received: from chimp (chimp [192.168.0.2]) by cage.simianscience.com (8.9.3/8.9.3) with ESMTP id BAA02471; Sat, 29 Jul 2000 01:22:17 -0400 (EDT) (envelope-from mike@sentex.net) Message-Id: <4.2.2.20000729010824.049e7380@mail.sentex.net> X-Sender: mdtancsa@mail.sentex.net X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.2 Date: Sat, 29 Jul 2000 01:17:06 -0400 To: Warner Losh From: Mike Tancsa Subject: Duplex settings (was Re: Re[2]: outgoing IP is fscking slow... ) Cc: "Patrick Bihan-Faou" , freebsd-stable@FreeBSD.ORG In-Reply-To: <200007290454.WAA62455@harmony.village.org> References: <200007282340.RAA61041@harmony.village.org> <035601bff8d7$93b06010$040aa8c0@local.mindstep.com> <4.2.2.20000728091818.03db6d70@mail.sentex.net> <141681324352.20000728151722@buz.ch> <3981843A.8157C83C@mediaone.net> <13675259221.20000728133617@buz.ch> <3981843A.8157C83C@mediaone.net> <4.2.2.20000728113241.032cb3d8@mail.sentex.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG At 10:54 PM 7/28/2000 -0600, Warner Losh wrote: >In message <200007282340.RAA61041@harmony.village.org> Warner Losh writes: >: I've seen this with the rl driver and the 8139, but with no other >: parts. The realtek part is really bad. > >Well, with some ethrenet hubs. It does very well with switches, be >they 10M or 100M. The 10M ethernet hubs we have here (netgear mostly) >have problems. Hubs and switches for me. I have found both the fxp and rl cards work well at duplex negotiation on my HP and cat2900 switches, but not against some IMC media convertors, 50% of my dumb hubs (everything from 3com - i.e. big name brands-- to ones manufactured on boats in international waters) and cat1900 switches. Basically, I have yet to find a card that works reliably enough for me under any OS against any switch/hub to auto detect anything other than 10BaseT/UTP Half Duplex. So even under NT (eg Intel Pro NICs dont get it right on my SMC Tigerswitch on NT 4.0) I will set the speed and duplex settings to match the switch/hub port. Why let NICs/drivers guess, when you can 'give them the right answer' and not have to worry about it. This is policy for our entire network and generally means one less variable to worry about when diagnosing network problems. ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Network Administration, mike@sentex.net Sentex Communications www.sentex.net Cambridge, Ontario Canada www.sentex.net/mike To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message