*BSD News Article 46887


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From: rcarter@best.com (Russell Carter)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: 100BaseTX and SMC?
Date: 14 Jul 1995 18:28:52 -0700
Organization: Best Internet Communications, Inc. (info@best.com)
Lines: 30
Message-ID: <3u75kk$1vp@shell2.best.com>
References: <3u64da$887@mips.infocom.com>
NNTP-Posting-Host: shell2.best.com
Keywords: 100BaseTX, SMC, DEC, fast ethernet

In article <3u64da$887@mips.infocom.com>,
Dave Hovemeyer <daveho@infocom.com> wrote:
>Is anyone using FreeBSD 2.0.5R successfully with the SMC EtherPower
>PCI card?  We have set up two machines using this card, and are experiencing
>low throughput (100K/s) and high packet loss (60%).  We haven't completely
>ruled out problems with our cabling and hub, but have seen this behavior
>
>	a)  using 15' CAT5 UTP cables, through the hub
>	b)  using a 15' CAT5 UTP crossover cable
>	c)  using a 3' CAT5 UTP crossover cable (packet loss less,
>	    throughput still low)
>
>So...is the problem in the de0 driver, in the card, or in the cable
>and hub?  Should we try a different card (does DEC make a DC21140
>based PCI 100BaseTX card)?
>
>Thanks,
>Dave

I know this doesn't solve your problem, but very nice results for 2 systems
using this card and a crossover cable are sitting in

http://www.geli.com/data/net.perf.html

What are you using to test?  Netperf and ttcp
work fine, what do they say?

Regards,
Russell
http://www.geli.com