Configuring Power Management

This chapter provides information about configuring power management and Power-over-Ethernet (PoE) for router models that support these features. See specific router model documentation for information about supported features:

Monitoring Power Usage with EnergyWise

Cisco EnergyWise monitors and manages the power usage of network devices and devices connected to the network. For information about using EnergyWise technology, see the configuration guides at the following site:

Cisco EnergyWise Configuration Guides

Configuring Power-over-Ethernet

Use the power inline command to enable/disable or the show power inline command to verify Power-over-Ethernet (PoE).


Note
Power-over-Ethernet is available for the C867VAE-POE-W-A-K9 model, using port FE0, with a 60-W power supply.

Enabling/Disabling Power-over-Ethernet

Use the power inline command to enable/disable Power-over-Ethernet (PoE) on the Fast Ethernet (FE) port 0. Beginning in privileged EXEC mode, perform these steps.

SUMMARY STEPS

  1. configure terminal
  2. interface fastethernet 0
  3. power inline {auto | never}
  4. end

DETAILED STEPS

SUMMARY STEPS

    1.    Router# configure terminal

    2.    Router(config)# interface fastethernet 0

    3.    Router(config-if)# power inline {auto | never}

    4.    Router(config-if)# end


DETAILED STEPS
     Command or ActionPurpose
    Step 1 Router# configure terminal  

    Enters global configuration mode.

     
    Step 2 Router(config)# interface fastethernet 0  

    The Fast Ethernet (FE) 0 interface.

    Note    The C867VAE-POE-W-A-K9 supports Power-over-Ethernet on the FE0 interface only.
     
    Step 3 Router(config-if)# power inline {auto | never}  

    Use auto to configure the port to supply inline power automatically.

    Use never to disable inline power on the port.

     
    Step 4 Router(config-if)# end

    Example: 
    Router#
     

    Exits configuration mode.

     

    Verifying the Power-over-Ethernet Configuration on the Interface

    Use the show power inline command to verify the power configuration on the FE0 port. 

    Router# show power inline
PowerSupply   SlotNum.   Maximum   Allocated       Status
-----------   --------   -------   ---------       ------
INT-PS           0        18.000     6.300         PS GOOD
Interface   Config   Device   Powered    PowerAllocated
---------   ------   ------   -------    -------------- 
Fa0         auto     Cisco    On         6.300 Watts