From owner-freebsd-questions  Tue Mar 27 18: 2:54 2001
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Date: Tue, 27 Mar 2001 18:02:49 -0800
From: dmp <dmp@pantherdragon.org>
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To: Lowell Gilbert <lowell@world.std.com>,
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Subject: Re: [freebsd-questions] netstat -i shows large number of Oerrs (almost 
 ==Opkts)?
References: <3ABED7DB.9AEB4481@pantherdragon.org> <44itkvp80l.fsf@lowellg.ne.mediaone.net>
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Lowell Gilbert wrote:
> dmp@pantherdragon.org (dmp) writes:
> 
> > I have a FreeBSD 4.2-R router on which the netstat -i output shows a
> > very high Oerr count:
> >
> > Name  Mtu   Network       Address            Ipkts Ierrs    Opkts Oerrs  Coll
> > de0   1500  <Link#1>    00:00:d1:1a:ee:7c  1640198     0  1156336 1156199     0
> > de1   1500  <Link#2>    00:00:d1:1a:ee:7d  1243993     0  1556497 1556427     0
> >
> > The Oerrs count has always been just under the Opkts count since the
> > machine was installed a little over a month ago.  How do I fix this?
> > Given that the router otherwise flawlessly does its job, is this even
> > a problem?
> 
> Best guess, the cards think that they're in full-duplex mode while
> whatever they're hooked up to thinks they're in half-duplex mode.

I'm not sure about the DSL bridge de0 goes to, but the switch de1 is
on indicates 100bTX FD, which is what ifconfig shows.

> Alternatively, they may be hooked up to the same broadcast domain.
> [That would be a mistake.]

They aren't.

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