[c-nsp] How to Determine the Serial Number of Catalyst

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> Anyone know How to Determine the Serial Number of Catalyst 
> Switch:  (5500, 6509)
> 
> GBIC
> POWERSUPPLY
> 
> show diagbus is not supported
> show idprom is not supported

If 'sh idprom' is not supported, I guess you're running CatOS.
In that case, try

 sh sprom X/Y              ! For the GBIC
 sh sprom powersupply X    ! For the PSU

-A