From owner-freebsd-hardware Sat Sep 23 5:13:32 2000 Delivered-To: freebsd-hardware@freebsd.org Received: from search.sparks.net (search.sparks.net [208.5.188.60]) by hub.freebsd.org (Postfix) with ESMTP id 036A437B42C for ; Sat, 23 Sep 2000 05:13:29 -0700 (PDT) Received: by search.sparks.net (Postfix, from userid 100) id 4F711DC74; Sat, 23 Sep 2000 08:08:22 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by search.sparks.net (Postfix) with ESMTP id 3CFF5DC73; Sat, 23 Sep 2000 08:08:22 -0400 (EDT) Date: Sat, 23 Sep 2000 08:08:22 -0400 (EDT) From: David Miller To: Chris Dillon Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: Multiple PCI busses? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Fri, 22 Sep 2000, Chris Dillon wrote: > On Fri, 22 Sep 2000, David Miller wrote: [two great answers from Chris and Mike Smith] > > I'm interested in putting together an eight to twelve port 100 > > Mbit router, and any way I slice it a single PCI bus comes up as a > > hard limit pretty quickly. I'm not aware of any multi-port > > ethernet cards with fast or wide interfaces, (anyone know of any?) > > so am looking for recommendations on multiple PCI busses. > > If you're putting together your own system, try the ASUS CUR-DLS, > which uses the ServerWorks ServerSet III LE chipset. It has dual > independent PCI busses on it, with two 66MHz/64-bit PCI slots and five > 33MHz/32-bit slots. Otherwise, most of the servers from the likes of > Dell, IBM, Compaq, etc. all use multiple PCI busses. The Compaq ML530 > I have here has no less than four independent PCI busses, and I use it > as an 100Mbit*8-port router, among other things. Anyone have any idea what the upper end of thruput is? I'm sure a few thousand packets per second is doable, but how abot the tens of thousands? Assume, of course, adequate hardware support - 4 64/66 pci busses, interleaved memory, etc. Is this an area where a big cache on a xeon processor would help more than extra CPU cycles? Thanks, --- David To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message