em(4) stops passing data

[Chris Howells]

On Tue, July 26, 2005 6:03 pm, Michael Conlen said:

> I often find that if I have a cable that is less than perfect the
> card will seem to work but with some heavy load the switch takes the
> port down and it stays down until I ifconfig down & up the interface.
> In every instance replacing the cable takes care of the problem.

Ahhhhhhh. That wasn't quite the cause -- I'd already tried quite a few cat
5e cables -- but it was related to the switch. After messing around for
very nearly 24 hours I've learn an important rule. Don't put a gigabit
switch near, or on top of, a 1200VA UPS. Judging by the effect they have
on a monitor they produce some pretty hefty electro-magnetic fields.

Thanks a lot for the help all, apologies for the noise :(


-- 
Cheers, Chris Howells -- howells at kde.org
Web: http://www.kde.org.uk, PGP ID: 0x33795A2C
KDE/Qt Developer: http://www.kde.org