Date: Sun, 8 Oct 2000 02:09:09 -0500 From: "graphics" <lart@mfn.org> To: "Terje Oseberg" <oseberg@hotmail.com>, <FreeBSD-questions@FreeBSD.ORG> Subject: Re: High Performance NICs Message-ID: <041701c030f6$abae7880$c991f280@mfn.org> References: <F257ma0osA91E9GQvnb0000fbae@hotmail.com>
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From: Terje Oseberg <oseberg@hotmail.com> To: <FreeBSD-questions@FreeBSD.ORG> 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
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