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From: Wilko Bulte <wilko@yedi.iaf.nl>
Message-Id: <199701162046.VAA01928@yedi.iaf.nl>
Subject: Re: le0 - excessive collisions
To: kuku@gilberto.physik.rwth-aachen.de
Date: Thu, 16 Jan 1997 21:46:19 +0100 (MET)
Cc: freebsd-hackers@freefall.freebsd.org
In-Reply-To: <199701161804.TAA01613@gilberto.physik.rwth-aachen.de> from "Christoph Kukulies" at Jan 16, 97 07:04:18 pm
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As Christoph Kukulies wrote...

> > and replaced it - after I got stumped with two no more functioning
> > SMC Ultra 8216 - by a DE200 (le0).
> > 
> > I'm seeing a bunch of 
> > le0: lance: warning: excessive collisions: TDR 5600ns (554-655m)
> > le0: lance: warning: excessive collisions: TDR 5600ns (554-655m)
> > le0: lance: warning: excessive collisions: TDR 5500ns (544-643m)
> > le0: lance: warning: excessive collisions: TDR 5500ns (544-643m)
> > le0:
> > 
> > in my /var/log/messages. 
> > 
> > device le0 at isa? port 0x200 net irq 10 iomem 0xd0000 vector le_intr

I've observed the same phenomenon on my DE422 (EISA) equipped 486DX22
at work. It means the card sees either a lot of collisions or the
cable/terminator itself is interrupted.

On my machine I even saw (when the network was *very* congested) the
DE422 turn completely deaf. An ifconfig down/up solves this.

A surplus ethernet bridge that I used to 'bridge' my own little piece
of the network from the evil colliding outside world solved this 8-)
So much for a hardware fix for something that looks like a driver
problem.. (I know, I should try to find out why this happens)

Wilko
_     ____________________________________________________________________
 |   / o / /  _  Bulte  email: wilko@yedi.iaf.nl - Arnhem, The Netherlands
 |/|/ / / /( (_) 	Do, or do not. There is no 'try' - Yoda
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