Subject: Re: fxp issues
To: NetBSD/i386 mailing list <>
From: =?ISO-8859-1?Q?Timo_Sch=F6ler?= <>
List: current-users
Date: 09/16/2004 16:41:00
>>> Same here - Thinkpad A21p. There have been good bad ones (straining 
>>> my
>>> nerves when the IF droops of fo 30s - 1m).
>> Oh, no, mine drops for only ~1.5s or so, consistently.  Basically just
>> long enough to notice the light going out on the switch.
> same here. does keeping steady traffic on the interface make it stop
> happening for you, also?
> (also, re: an earlier post, my switch is a Netgear FS105, and has no 
> way of
> dropping the port to 10baseT-FDX. Although, I can drop the interface to
> 10baseT-FDX via ifconfig, and the switch will reflect the change. But, 
> now
> that I think of it... I don't have the ping running right now, and I 
> think
> the NUT ( queries every five seconds are 
> keeping it
> from blinking out, since I haven't noticed it happening since I setup 
> upsmon
> on that machine.
> So, as stated before, the only workaround I know of is to keep some 
> traffic
> on the interface.. but whether or not that works for everyone, it is
> obviously still a driver problem. If I had the time, I'd try to debug 
> it..
> but it's (obviously) not causing a kernel panic, nor any messages to
> console, so I wouldn't know where in the code to start looking.
> -Sean

i have a i386 box here with a redundant fxp NIC in it. i'll put it onto 
the network and give it a try in different environments (i.e., try to 
reach it via ICMP for a day or so in 1sec intervals, repeating this for 
2secs, 5secs etc.).

there's a nice layer3 smc switch (managed, and that's the point! ;) 
attached to it so that i can trace at least the world side of the 
interface's behaviour a little less better than just watching a 
switch's LED :)

i'll provide any results.

mit vorzueglichster Hochachtung/best regards,

Timo Schoeler
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