Solution
This issue is fixed in 12,2(55)SE3 , 12.2(58)SE1 and later releases. The
following interface configuration commands have to be applied to resolve the
issue,
Switch(config)# int x/y
Switch(config-if)# power inline port 2x-mode
Switch(config-if)# shut
Switch(config-if)# no shut
The fix is present in the following platforms :
3750-E,3560-E, 3750-X, 3560-X, 3560-C, 2960S, 2960,2960C,2960X
The other platforms do not support 2X power mode and the workaround would be to
use a longer cable.
I did the same procedure but no luck my switch model is 2960
