Date: Sat, 8 Feb 2003 04:09:52 -0500 From: "Adam Maas" <mykroft@explosive.mail.net> To: "Wes Peters" <wes@softweyr.com>, "David Gilbert" <dgilbert@velocet.ca>, <freebsd-current@freebsd.org>, <freebsd-net@freebsd.org> Subject: Re: Preferred Gigabit interfaces for -CURRENT Message-ID: <002c01c2cf51$d7a76e50$7419cdcd@ticking> References: <15939.2823.45299.471388@canoe.velocet.net> <200302080049.00472.wes@softweyr.com>
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Likely part of the performance issue was due to the Chipset of the motherboard. Your typical 32bit 33MHz PCI bus is going to be marginal for routing GigE traffic, just due to bus bandwidth limitations, but it'll handle multiple 100BaseTX cards just fine. While a higher-end setup like a Serverworks chipset, with a 64bit, 66MHz bus will handle the traffic better. OF course, if you really want good routing performance on a*BSD platform, you should be looking at a Juniper M20 or M40. Adam ----- Original Message ----- From: "Wes Peters" <wes@softweyr.com> To: "David Gilbert" <dgilbert@velocet.ca>; <freebsd-current@freebsd.org>; <freebsd-net@freebsd.org> Sent: Friday, February 07, 2003 7:49 PM Subject: Re: Preferred Gigabit interfaces for -CURRENT > On Friday 07 February 2003 01:25, David Gilbert wrote: > > We're about to make the switch from 100M interfaces to GigE interfaces > > for our transit routers ... which are FreeBSD-5.0 based SMP (Athlon) > > boxes. Our current favorite card is the intel i82559-based fxp > > cards. They handle the load best on our testing of 100M cards. > > Remember that our load is large and small packets and that hardware > > checksums are not a win (although hardware vlans are). > > > > So... I need to know what GigE chipsets I should test. I recently > > tested Intel GigE cards ... with dismal results... less than half the > > packets-per-second on the (otherwise) same hardware. Small packets > > (as in DOS attacks) are a real concern here. > > Wow, this wasn't my experience at all. At my previous employer we > used Intel EEPro 1000 Server cards with the em(4) driver on FreeBSD > 4.5 with nary a hitch and excellent performance. This was on > ServerWorks chipset motherboards with P-III and P4 processors. > > > I believe that someone here recomended Tigon III based cards ... but I > > was recently looking through 5.0-RELEASE's hardware notes and couldn't > > find any mention of Tigon III. > > The follow-on to the Tigon II is the Broadcom BCM570x supported by > the bge(4) driver in FreeBSD. This is not what you want. They're > certainly cheap to test with, though; the Netgear GA302T sells for > under $40 at a few online retailers. > > -- > > Where am I, and what am I doing in this handbasket? > > Wes Peters wes@softweyr.com > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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