From owner-freebsd-questions Sat Oct 7 23:40:19 2000 Delivered-To: freebsd-questions@freebsd.org Received: from hotmail.com (f257.law8.hotmail.com [216.33.240.132]) by hub.freebsd.org (Postfix) with ESMTP id 0585337B503 for ; Sat, 7 Oct 2000 23:40:17 -0700 (PDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sat, 7 Oct 2000 23:40:13 -0700 Received: from 204.254.26.45 by lw8fd.law8.hotmail.msn.com with HTTP; Sun, 08 Oct 2000 06:40:12 GMT X-Originating-IP: [204.254.26.45] From: "Terje Oseberg" To: FreeBSD-questions@FreeBSD.ORG Subject: Re: High Performance NICs Date: Sun, 08 Oct 2000 06:40:12 GMT Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 08 Oct 2000 06:40:13.0070 (UTC) FILETIME=[9C68B2E0:01C030F2] Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Isn't the 3 Com 509 a 10Mbit card? How did you get the 3 Com 905B to work? Do you realized that 300 GB/day is equal to 27.7Mbits? How many systems do you have serving 300 GB/day through that 100Mbit switch? A good quality 100Mbit switch is only good for about 80Mbits before you start getting too many colisions to get any packets through. So, if you've got 3 systems running at that speed on one 100Mbit switch and you're having problems with reliability, I'd take a look at the switch rather than the NICs. Terje Oseberg http://www.reactor-core.org/~oseberg : Greetings, : : We have several very-high throughput boxen (>300 GB/day each) : sitting on an Arrowpoint CS100 switch. Our problem is that at these : sustained throughput levels, our NICs just crumble :-( : : We've tried : 3 Com 905B (garbage) : 3 Com 509 (so-so) : A variety of Realtek based TX cards (slow...) : and a DEC 21140 based card (great when it works, but seems to : crap out at the high end of the traffic curve) : : FreeBSD handles some of the highest loaded sites in the world, : so I *know* it can handle it with the right NIC. My question : should be obvious: what NICs do the readers recommend? : : Thanks! : : J.A. Terranson : sysadmin@mfn.org : : (Please CC off list, as we are not subscribed: thanks!) _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message