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Date:      Sat, 09 Aug 1997 09:06:22 +0200
From:      sthaug@nethelp.no
To:        tom@sdf.com
Cc:        kehlet@dt.wdc.com, hackers@FreeBSD.ORG
Subject:   Re: 3c90x vx0 driver
Message-ID:  <14313.871110382@verdi.nethelp.no>
In-Reply-To: Your message of "Fri, 8 Aug 1997 20:16:24 -0700 (PDT)"
References:  <Pine.BSF.3.95q.970808201321.885A-100000@misery.sdf.com>

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>   AFAIK, the fxp driver is the only driver that supports full-duplex.
> 
>   The new de driver (only in current right now?), probably supports
> full-duplex.

Or you can get it from Matt Thomas' web site. It definitely supports
full duplex. Running full duplex at 100 Mbps is nice :-)

>   You also might to want to look at the performance numbers on
> www.intel.com in regards to fxp (Intel Etherexpress Pro100B) performance.
> They have some links to some outside studies that were done.  The
> FastEtherlink XL was the worst card tested!

AFAIK the vx driver uses PIO, so it's likely to be slower than the fxp
and de drivers in FreeBSD.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no



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