Power Over Ethernet (PoE/PoE+) Operation

Displaying the Switch’s Global PoE Power Status

Displaying PoE Status on All Ports

Syntax: show power-over-ethernet brief

Displays the following port power status:

•PoE Port: Lists all PoE-capable ports on the switch.

•Power Enable: Shows Yes for ports enabled to support PoE (the default) and No for ports on which PoE is disabled.

•Power Priority: Lists the power priority (Low, High, and Critical) configured on ports enabled for PoE. (For more on this topic, refer to the power command description under “Configuring PoE Operation” on page 11-8.)

•Alloc by: Displays how PoE is allocated (usage, class, value)

•Alloc Power: The maximum amount of PoE power allocated

for that port (expressed in watts). Default: 17W for PoE; 33W for PoE+.

•Actual Power: The power actually being used on that port.

•Configured Type: If configured, shows the user-specified identifier for the port. If not configured, the field is empty.

•Detection Status:

–Searching: The port is trying to detect a PD connection.

–Delivering: The port is delivering power to a PD.

–Disabled: On the indicated port, either PoE support is disabled or PoE power is enabled but the PoE module does not have enough power available to supply the port’s power needs.

–Fault: The switch detects a problem with the connected PD.

–Other Fault: The switch has detected an internal fault that prevents it from supplying power on that port.

•Power Class: Shows the 802.3af power class of the PD detected on the indicated port. Classes include:

0: 0.44w to 12.95w can be drawn by the PD. Default class.

1: 0.44w to 3.84w

2: 3.84w to 6.49w

3: 6.49w to 12.95w

4:For PoE+; up to 25.5 watts can be drawn by the PD.

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