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Date:      Tue, 18 Aug 1998 20:50:27 -0400
From:      "Gary Palmer" <gpalmer@FreeBSD.ORG>
To:        stephen farrell <stephen@farrell.org>
Cc:        Tom <tom@uniserve.com>, Vadim Belman <voland@plab.ku.dk>, "freebsd-stable@FreeBSD.ORG" <freebsd-stable@FreeBSD.ORG>
Subject:   Re: Intel EtherExpress Pro 10/100B network collisions 
Message-ID:  <22730.903487827@gjp.erols.com>
In-Reply-To: Your message of "18 Aug 1998 19:20:01 CDT." <87af51bz66.fsf@couatl.uchicago.edu> 

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stephen farrell wrote in message ID
<87af51bz66.fsf@couatl.uchicago.edu>:
> Note that full-duplex can also SLOW your network down.  I don't
> understand this, and am too looking for answers.  However, I switched
> a 100+ to full-duplex and went from 10Mbps -> 10bps transfer rates to
> a sparc/sol2.5 box on 10baseT LAN (though connections off the LAN were
> normal).  Clearly some care needs to be taken in how to configure this
> card.

This normally only happens on poor (read: cheap, low quality)
switches. In tests here, full duplex operation doesn't decrease
performance. We use Catalyst and `Extreme' 100bTX switches.

Gary
--
Gary Palmer                                          FreeBSD Core Team Member
FreeBSD: Turning PC's into workstations. See http://www.FreeBSD.ORG/ for info

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