Stacking Issue Between 2960S (Master) & 2960X (Member)

[msmith_704]

Recently purchased a new WS-2960X-48FPS-L with stacking module running c2960x-universalk9-mz.150-2.EX5.bin. This switch is to be stacked to WS-2960S-24PS-L with stacking module running c2960s-universalk9-mx.150-2.EX5.bin. The 2960S  is configured as the master with priority 14  but does not acknowledge the new 2960X with priority 1 as being a member of the stack.

If I do a show switch  on the individual switches the results are as follows:

2960S = Switch 1, Priority 14, H/W Ver 1, with ready status.

2960X = Switch 1, Priority 1, H/W Ver 4, with ready status.

The only thing I can find is the different hardware versions, would this cause he master not to acknowledge the member? If so will someone please offer advice on how to resolve this issue?

Thanks,

Micky

[paul driver]

Hello

Have you done this?
 

By default, Catalyst 2960-X switches operate at a port speed of 20 Gbps while 2960-S switches have a maximum port speed of 10 Gbps. In a mixed stack of Catalyst 2960-X and Catalyst 2960-S switches, the stack must operate at the port speed of the Catalyst 2960-S switch. Otherwise, the switches will not stack.

To set the port speed of the stack to 10 Gbps, use the switch stack port-speed 10 global configuration command on a Catalyst 2960-X stack member before you add a Catalyst 2960-S switch to the stack, and then reload the stack

res

Paul

[msmith_704]

Hello Paul,

Thank you for answering my question. I discovered exactly what you said about the difference  that stack port speeds of the 2960S and the 2960X right before the end of my shift this evening. I did exactly as you outline in your answer. Once the 2960X (member) reloaded the election process happen and this issue was resolved.

Many thanks to you sir!

Best regards,

Micky