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

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

  1. In the navigation pane, expand Configuration > Edit.
  2. Select Chassis.
  3. Select the PoE tab.
  4. For Usage Threshold%, type the value in percentage for comparing the measured power.
  5. For PoweredDeviceDetectType, select the PoE detection type depending on the capabilities of the switch.
  6. Select FastPoeEnable.
    Note

    Note

    This step only applies to VSP 4900 Series.

  7. Select PerpetualPoeEnable.
    Note

    Note

    This step only applies to VSP 4900 Series.

  8. 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:

  • 802.3af

  • 802.3afAndLegacySupport

  • 802.3at

  • 802.3atAndLegacySupport

  • 802.3bt Type 3

  • 802.3bt Type 4

Note:

The default detection type is automatically configured for the highest PoE standard supported on the switch.

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 VSP 4900 Series.

Enables Fast PoE on the switch.

The default is disabled.

PerpetualPoeEnable

Note:

Exception: only supported on VSP 4900 Series.

Enables Perpetual PoE on the switch.

The default is disabled.
9037602-00 Rev AB