From owner-freebsd-questions Wed May 6 10:28:42 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id KAA04675 for freebsd-questions-outgoing; Wed, 6 May 1998 10:28:42 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from dan.emsphone.com (dan@dan.emsphone.com [199.67.51.101]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id KAA04658 for ; Wed, 6 May 1998 10:28:34 -0700 (PDT) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.8.8/8.8.8) id MAA10374; Wed, 6 May 1998 12:28:18 -0500 (CDT) (envelope-from dan) Message-ID: <19980506122818.A10083@emsphone.com> Date: Wed, 6 May 1998 12:28:18 -0500 From: Dan Nelson To: Nicole Cc: questions@FreeBSD.ORG, Jim Van Baalen Subject: Re: Appropriate 100bt NIC for NFS References: <19980506100349.A8349@emsphone.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.92.4i In-Reply-To: ; from "Nicole" on Wed May 6 09:42:32 GMT 1998 X-OS: FreeBSD 2.2.6-STABLE Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In the last episode (May 06), Nicole said: > Hi Dan > I have a post that is similiar, except that I AM using the intel > 10/100 cards. The only way I could get my NFS mount to work under > any sort of load was to use the mount hack of dropping the mtu size > to under 1500. The machines are PentII 333 with an Abit MB adaptec > SCSI and 2 Nic cards. > > Any clues as to what to look for to get rid of the hack would be > great. Wow. That was exactly the symptom I saw with the 3COM cards; when I switched to the EE/Pros and the fxp driver, I was able to bump my NFS blocksize to 32K. Are you dropping packets on both NICs, or just one? Make sure your NICs and your switch agree on half/full duplex negotiating. If one end thinks it's full, and the other end thinks it's half, you might have collisions that never get retransmitted. Also, try moving the cards to different slots in the MB. I think the EE/Pro cards need busmastering PCI slots (a pII/333 motherboard should have 100% busmastering slots, but you never know). -Dan Nelson dnelson@emsphone.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message