Can't Connect WS-G5483 GBIC to 3com Switch

cgroman · ‎06-16-2003

I'm trying to connect my WS-C3550-48-SMI Catalyst switch to a 3com SuperStack 3 Baseline 10/100/1000 switch via a 1000Base-T copper GBIC.

If I connect the GBIC directly to a PC running a NetGear GA622T NIC it works just fine (connects at 1 GB). However, if I cable the 3550 to the 3com then connect to the PC it doesn't work. I see from the 3com docs that it requires flow control so I turned on send and receive flow control in the 3550 but it still won't. I suspect it's an interface configuration issue between the 3com (which auto-senses) and the 3550 but I can't figure out what it is.

I should note that the indicator lights on both the 3550 and the 3com indicate that a connection is established and working. Pings will occasionally work.

The IOS is 12.1(9)EA1c

Any help would be greatly appreciated.

Thanks in Advance

steven-dunn · ‎06-18-2003

try:

switchport nonegotieate

under interface config.

or :

play with flowcontrol on the gig interface