[c-nsp] Mixing 2960S and X in stack

[Martin Komoň]

Hi Garry,

check if the SDM bias is set the same in all switches in the future
stack. I faced an identical situation not too long ago.

HTH,

Martin

On 31/05/15 19:41, Garry wrote:
> Hi,
> 
> A customer of ours needed to extend a rack's switch ports, which at that
> point consisted of a stack of two 2960S-LPD-L switches. The new switch
> he set up was a 2960X-LPD-L. Anyway, contrary to what I would have
> expected, neither of the stacking ports on the S and X switches came up.
> As the S switches had a rather old 12.2 IOS, I did an update to the
> recommended 15.0 SE IOS, which again didn't give me any stacking ports
> in state up. Asking around, somebody confirmed they had a mixture of S
> and X switches, albeit with an EX train of the IOS. So, I again updated
> the S' IOS to the current ED release of the EX train, but still neither
> of the switches' stacking even showed any positive change.
> 
> Is there anything our customer could be doing wrong, or anything I need
> to watch out for as far as configuration goes? I even  tried to manually
> provision the X switch on the stack, still no improvement ...
> 
> Tnx, -garry
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