From owner-freebsd-questions Sun Oct 8 0:19: 5 2000 Delivered-To: freebsd-questions@freebsd.org Received: from cliff.mfn.org (cliff.mfn.org [204.238.179.8]) by hub.freebsd.org (Postfix) with ESMTP id 872D437B503 for ; Sun, 8 Oct 2000 00:19:00 -0700 (PDT) X-Message1: Missouri FreeNet does not relay. If this email X-Message2: is unsolicited bulk or commercial, please report X-Message3: this abuse promptly to abuse@mfn.org. Thank You. X-ORIGINIP: 128.242.145.201 X-ORIGINDNS: imaging.mfn.org Received: from imaging (imaging.mfn.org [128.242.145.201]) by cliff.mfn.org (8.9.3/8.8.7) with SMTP id DAA93341; Sun, 8 Oct 2000 03:27:00 -0500 (CDT) (envelope-from lart@mfn.org) Posted-Date: Sun, 8 Oct 2000 03:27:00 -0500 (CDT) X-CUTMARK: --------------- Message-ID: <041701c030f6$abae7880$c991f280@mfn.org> From: "graphics" To: "Terje Oseberg" , References: Subject: Re: High Performance NICs Date: Sun, 8 Oct 2000 02:09:09 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2314.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG From: Terje Oseberg To: Sent: Sunday, October 08, 2000 1:40 AM Subject: Re: High Performance NICs > Isn't the 3 Com 509 a 10Mbit card? Could be, I don't have one that I can check... > How did you get the 3 Com 905B to work? My mistake, it is a 905TX, *version* "B". > Do you realized that 300 GB/day is equal > to 27.7Mbits? Yes. > How many systems do you have serving 300 GB/day > through that 100Mbit switch? 1 at full tilt, 1 at about 1/2 that volume on an Arrowpoint CS100, another at full tilt on an Intel 460T, and the last on a little generic job. > A good quality 100Mbit switch is only good for > about 80Mbits before you start getting too many > colisions to get any packets through. Agreed. > 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. The problem is hard errors on the cards (netstat -i) as opposed to errors on the switch (zero). The Intel board performs better that the others, but still not satifactorily (several hundred hard errors [both in and out] per day). > 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