I sent the following to the eepro mailing list and have had no response, I
thought I'd give the good ol' plug a try.  If anyone knows a better way to
force speed and duplex negotiation, please let me know!

---> snip

For some reason, when we use the mii-diag utility to force 100mbs - Full
Duplex we get a ton of Alignment errors on our catalyst.  Anyone have any
ideas?  

1. The cards are eepro100's with 100mbs link-lights on.
2. The ports on the switch are set to 100-FD
3. When changing the ports on the switch to 10-FD 99% of the errors go away,
but speed is reduced dramatically.  (imagine that.)
4. I've downloaded the SRPMS for redhat and recompiled the drivers,
mii-diag, and eepro100-diag, all goes well.  Still seems to be the same
situation.

Any help would be greatly appreciated.

Blake Barnett
Sr. Unix Administrator
DevelopOnline.com Corporation