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Xref: sserve comp.os.386bsd.questions:16826 comp.os.386bsd.development:3260 Newsgroups: comp.os.386bsd.questions,comp.os.386bsd.development Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msunews!agate!tfs.com!mailhub!julian From: julian@mailhub.tfs.com (Julian Elischer) Subject: Re: ethernet throughput Message-ID: <D4p0x3.FCt@tfs.com> Keywords: ethernet Sender: usenet@tfs.com (Mr. News) Organization: TRW Financial Systems, Oakland, CA References: <3it7m8$o39@clavin.uprc.com> <3itrg4$pfj@crl9.crl.com> Date: Tue, 28 Feb 1995 04:39:03 GMT Lines: 42 In article <3itrg4$pfj@crl9.crl.com>, Gary E. Grant <ggrant@crl.com> wrote: >In article <3it7m8$o39@clavin.uprc.com>, >LaCoursiere J. D. (Jeff) <z056716@uprc.com> wrote: >>What kind of throughput are people getting out of high-end ethernet cards >>and FreeBSD? I was doing ftp's between two Sparc LX boxes on a subnet by >>themselves and was seeing about 4Mb transfer rates. Does PC hardware exist >>that could reach these speeds? I seem to remember some quotes of 900Kb >>with 32 bit cards, which makes me skeptical. I only get 400Kb through my >>16bit WD8003 cards (486DX2/66 FreeBSD1.1.5.1 to 386DX/40 FreeBSD 1.1.5.1). yesterday I did an ftp from a sparc-10 and a 486-DX2/66 on the same segment.. (sparc->FreeBSD) it was a 44MByte file it transferred at 1.1MB/sec I was reasonably pleased.. I don't know about sending speed for FreeBSD though.. this was using an SMC-elite-16 combo.. (WD8013 16bit card I think) >> >>If you have reached 4Mb, please email me your motherboard type and ethernet Mb = Mega BITS MB = Mega BYTES >in reality , due to CS/MA gaussian backoff, a normal ethernet cable >saturates at about 3.5 Megabits per second... or 450-500 KBytes per second.. nope, with multiple hosts it's quite easy to have 800KB/sec aggregate on the wire between them and often most hosts aren't transmitting so it's not uncommon to get the wire to yourself.. depending on time of day etc. :) > >Megabytes/Second... BTW FDDI is a tokenring type of protocol ... >comes in two flavors (Copper and Fiberoptic) try ATM at 600Mb/sec+ julian > > > > >