Catalyst 2960 compatibility

BRUNOGSOUSA · ‎08-04-2008

Hi,

I am new to Cisco switches world.

I have one Catalyst 2960 switch with 4 Gigabit ports.

Using gigabit ports with GBIC (1310nm), this cisco switch was not able to connect to D-link or 3Com switches with the same gbic model and port type.

But I could make 2 d-link switches talk to each other using the same optical fiber structure and port type. And the same with 2 3com switches.

Is there any kind of incompatibility between catalyst 2960 switches and other ones? Or is it misconfigurated?

Thanks

Pari Thiagasundaram · ‎08-04-2008

Can you try disabling auto negotiation of speed and duplex on both the switches and check again?.

BRUNOGSOUSA · ‎08-04-2008

How can I do that on Cisco switch?

Pari Thiagasundaram · ‎08-04-2008

Under the Gig interface configuration,

NativeIOS(config-if)#speed 1000

NativeIOS(config-if)#duplex full

Do the same on the other 3-com or D-link switches as well.

glen.grant · ‎08-04-2008

Unless they are cisco approved gbics they may not work in a cisco box. They should be cisco gbics.