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To: Vincent Chen <vctw@yahoo.com>
Cc: FreeBSD maillist <freebsd-questions@FreeBSD.ORG>
Subject: Re: NIC problem?
References: <20021013153021.67476.qmail@web20001.mail.yahoo.com>
From: Lowell Gilbert <freebsd-questions-local@be-well.no-ip.com>
Date: 13 Oct 2002 12:14:31 -0400
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Vincent Chen <vctw@yahoo.com> writes:

> I have a DE-220 10M NIC connect to a server with
> realtek
> 8139 NIC using cross over cable. The transfer speed
> usually over 500K bytes. Recently, the server crashed
> and I have to connect this DE-220 NIC to another
> server with Intel 82559 NIC using the same cross over
> cable. After that, the transfer is terrible. Usually
> below 10K bytes.I see a lot of collision in 'netstat
> -in' command on intel side but nothing unusual on
> DE-220 side. Is there any thing I can do to solve this
> problem?

You almost certainly have a duplex mismatch.  Get the two sides to
agree on the duplex setting, and they should run up close to wire
speed.  

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