Re: eepro100 probs

From: Andrew Morton (andrewm@uow.edu.au)
Date: Wed May 10 2000 - 09:54:59 EST


Tim Hockin wrote:
>
> > We're seeing a stack of stalls with the eepro100
>
> We're having lots of trouble with eepro100 and Cisco switches - apparently
> after some quiescent period, the eepro stops responding until outgoing
> traffic is generated. We're working on isolating it, but I don't know if
> it is actually an eepro issue, or a cisco issue yet. Just thought I'd
> throw it out for anyone to add a "me too!", or more info.
>

Interesting. There are several identical reports for the 3com drivers.
The so-called "sleepy NIC" problem, where a NIC which is completely idle
for 20-30 minutes loses its ability to receive.

Some people have resorted to a cron job which pings another machine once
every ten minutes.

I wonder if it is due to the switch? Or perhaps some Linux problem
above the device driver? Or common to the MII transceiver h/w or
driver?

I'll shake a few more details out of the 3com uers who have observed
this behaviour.

-- 
-akpm-

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