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Xref: sserve comp.dcom.lans.ethernet:11214 comp.os.386bsd.misc:3397 Newsgroups: comp.dcom.lans.ethernet,comp.os.386bsd.misc Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msuinfo!agate!library.ucla.edu!news.mic.ucla.edu!news.bc.net!nntp.cs.ubc.ca!torn!fonorola!achilles!news.sandelman.ocunix.on.ca!zone4!aficom!revcan!quantum!aboyd From: aboyd@qnx.com (Andrew Boyd) Subject: Re: Unix PC as dedicated router? Message-ID: <+rh94bq@qnx.com> Date: Thu, 25 Aug 94 14:43:51 GMT Organization: QNX Software Systems References: <33afek$8s8@rockall.cc.strath.ac.uk> <33b3r5$oml@orion.cc.andrews.edu> <33i467$2ve@fw.novatel.ca> Lines: 26 Herb Peyerl <hpeyerl@sidney.novatel.ca> wrote: >3c509's can saturate ethernet too ... I was stomping on our corporate >ethernet with 2 3c509's and 2 486-66's... the problem appears to have >risen to "which ethernet adapter can saturate an ethernet with the >lowest amount of work on behalf of the computer the card is plugged into". heh heh. When I was writing a driver for the isa ne2100 (aka amd79c960) I wrote a little test program which would init the beast, and tx or rx packets. According to the alantec, my moronic little test program would pump out packets at 99% of the possible ethernet bandwidth. On an old 386/33. The test program can optionally _broadcast_ the packets, but I've never had the balls to do that - I don't mind melting down my segment (see ethernet capture effect), but it would probably nuke all the 22 other segments, too. Oh, you wanted to do something useful with the driver, other than just generate traffic? If you wanna put two network cards in a PC, and get any decent throughput, I'd strongly recommend a speedy bus: vl or pci. One isa ethernet card will occupy 25% of the bus bandwidth, at a minimum. -- #include <std.disclaimer>