Configure PoE Globally
About this task
Configure PoE usage threshold and device type settings, and enable Fast PoE and Perpetual PoE globally on a switch.

Important
- 
                        After you enable Fast PoE or Perpetual PoE or both, you must save the running configuration file. 
- 
                        If Fast PoE or Perpetual PoE are enabled and you change any other global or port-specific PoE settings, you must resave the running configuration file. 
Procedure
- In the navigation pane, expand .
- Select Chassis.
- Select the PoE tab.
- Configure the fields as required.
- Select Apply.
PoE Field Descriptions
Use the data in the following table to use the PoE tab.
| Name | Description | 
|---|---|
| Power(watts) | Specifies the nominal power of the Power Sourcing Entity expressed in Watts. | 
| OperStatus | Specifies the operational status of the main Power Sourcing Entity. | 
| ConsumptionPower(watts) | Specifies the measured usage power expressed in Watts. | 
| UsageThreshold% | Configures the usage threshold in percent for comparing the measured power and initiating an alarm if the threshold is exceeded. | 
| PoweredDeviceDetectType | Configures the mechanism used to detect powered ethernet devices attached to a powered ethernet
                                port. The options are: 
 | 
| PowerPresent | Specifies the current power source present on the switch. Available power sources are AC and DC. A value of acOnly indicates that the only power supply is AC. A value of dcOnly indicates that the only power supply is DC. A value of acDc indicates that the two power supplies, AC and DC are supplying power. | 
| FastPoeEnable Note: 
                 Exception: only supported on 5420 Series, 5520 Series and VSP 4900 Series. | Enables Fast PoE on the switch. The default is disabled. | 
| PerpetualPoeEnable Note: 
                 Exception: only supported on 5420 Series, 5520 Series and VSP 4900 Series. | Enables Perpetual PoE on the switch. The default is disabled. | 




