On Sun, Feb 03, 2002 at 11:35:26AM +1300, Cameron Kerr wrote: > On Sat, 2 Feb 2002, Igor Mozetic wrote: > >We have both 3com (905B) and Intel (EExpress Pro100) and both run fine. > >There is only one catch with Cisco switches - they don't autonegotiate > >with 3com, so one has to set the switch ports to 100Mb/FullDuplex. > > Really???!!! Is this a targetted incompatibility? There is no good reason > why autonegotiation would work with one type, and not another. The only > way to tell if a NIC was from 3Com, would be to check its MAC address. I > wonder if it would work if you change the first three octets of the MAC > address of the NIC, as this would prove they Cisco are playing silly > buggers. (The first three octets of a MAC address identify the > manufacturer.) This is a widely known and long-standing incompatibility between Cisco and 3Com etherlike chipsets. There's no good "reason" for it, like most bugs. -- Nathan Norman - Staff Engineer | A good plan today is better Micromuse Ltd. | than a perfect plan tomorrow. mailto:nnorman@micromuse.com | -- Patton
Attachment:
pgphc0fcprOLu.pgp
Description: PGP signature