Power Over Ethernet (PoE/PoE+) Operation

Configuring PoE Operation

Configuring the PoE Port Priority LevelSyntax: interface < port-list> power-over-ethernet [ critical high low ]

Reconfigures the PoE priority level on <port-list>. For a given level, ports are prioritized by port number in ascending order. For example, if ports A1-A24 have a priority level of critical, port A1 has priority over ports A2-A24.

If there is not enough power available to provision all active PoE ports at a given priority level, then the lowest-numbered port at that level will be provisioned first. For chassis switches, the lowest- numbered port at that level starting with module A, then B, C, and so on is provisioned. PoE priorities are invoked only when all active PoE ports cannot be provisioned (supplied with PoE power).

•Critical: Specifies the highest-priority PoE support for

<port-list>. The active PoE ports at this level are provisioned before the PoE ports at any other level are provisioned.

•High: Specifies the second priority PoE support for

<port-list>. The active PoE ports at this level are provisioned before the Low priority PoE ports are provisioned.

•Low: (the default): Specifies the third priority PoE support for <port-list>. The active PoE ports at this level are provisioned only if there is power available after provisioning any active PoE ports at the higher priority levels.

In chassis switches, you can use one command to set the same priority level on PoE ports in multiple modules. For example, to configure the priority to High for ports c5-c10, C23-C24, D1-D10, and D12, you could use this command:

ProCurve(config)# interface c5-c10,c23-c24, d1-d10,d12 power-over-ethernet high

Suppose, for example, that you configure the PoE priority for a module in slot C as shown in table 11-1.

11-9