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