How do I configure my CISCO Switch to properly power my PoE client?

Configure your Cisco switch so that it properly works with Thinlabs Power over Ethernet (PoE) Computers (including, but not limited to,TL2530P, TL2640P, TL7600P, TL8510P, TL8610P models)..


  1. enable
  2. configure terminal
  3. interface interface-id
  4. power inline {auto [max max-wattage] | never | static [max max-wattage]}
  5. end
  6. show power inline [interface-id | module switch-number]
  7. copy running-config startup-config

Detailed Instructions

      Command or Action Purpose
    1 enable 

    Switch> enable

    Enables privileged EXEC mode - enter your password if prompted.


    2 configure terminal 

    Switch# configure terminal 

    Enters global configuration mode.

    3 interface interface-id 

    Switch(config)# interface gigabitethernet2/0/1 

    Specifies the physical port to be configured, and enters interface configuration mode.

    4 power inline {auto [max max-wattage] | never |static [max max-wattage]} 

    Switch(config-if)# power inline auto 

    Configures the PoE mode on the port.  Keywords and meanings:


      auto - Enables powered-device detection; if enough power is available, automatically allocates power to the PoE port after device detection (default setting).


      max max-wattage - limits the power allowed on the port; if no value is specified, the maximum is allowed.


      max max-wattage - limits the power allowed on the port; range is 4000 to 30000 mW; if no value is specified, the maximum is allowed.


      never - disables device detection, and disable power to the port.


    If a port has a Cisco powered device connected to it, do not use the power inline never command to configure the port. A false link-up can occur, placing the port into the error-disabled state.


      static - Enables powered-device detection; pre-allocate (reserve) power for a port before the switch discovers the powered device; the switch reserves power for this port even when no device is connected and guarantees that power will be provided upon device detection.

    The switch allocates power to a port configured in static mode before it allocates power to a port configured in auto mode.

    5 end 

    Switch(config-if)# end

    Returns to privileged EXEC mode.

    6 show power inline [interface-id | module switch-number] 

    Switch# show power inline 

    Displays PoE status for a switch or a switch stack, for the specified interface, or for a specified stack member.

    The module switch-number keywords are supported only on stacking-capable switches.

    7 copy running-config startup-config 

    Switch# copy running-config startup-config

    (Optional) saves your entries in the configuration file.

    Click here for more detailed information on configuration of Cisco Catalyst IOS switches.