Re: 2.1.127: eth0 occasionaly self-disabling

Richard Fish (rjf@estinc.com)
Fri, 20 Nov 1998 09:38:22 -0700

Eric Buddington wrote:
> Twice since then, the machine has stopped pinging. The last time,
> 'ifconfig eth0 down; ifconfig eht0 up' fixed it. This time, after
> 'ifconfig eth0 down', the machine started pinging (!). Repeating the
> command *did* turn off the interface, and 'ifconfig eht0 up' brought it
> back online. It currently only shows one routing entry:
> 137.165.18.0 0.0.0.0 255.255.254.0 U 0 0 0 eth0

I've seen this behavior as well with rtl8139-based 10/100 cards. Turns
out that we were trying to run full-duplex across hubs that were only
capable of half-duplex operation. Setting the cards to half-duplex mode
(with full_duplex=0 in conf.modules) fixed the problems.

-- 
Richard Fish                      Enhanced Software Technologies, Inc.
Software Developer                4014 E Broadway Rd Suite 405
rjf@estinc.com                    Phoenix, AZ  85040 
(602) 470-1115                    http://www.estinc.com


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/