System information

11-11

Power Over Ethernet (PoE) Operation

Viewing PoE Configuration and Status

Displaying the Switch’s Global PoE Power Status

For example, in the default PoE configuration, when the switch is running

with several ports supporting PD loads, show power-management displays data

similar to the following:

Figure 11-2. Example of Show Power-Management Output

Syntax: show power-management

Displays the switch’s global PoE power status, including:

• Max Power: Lists the maximum PoE wattage available to

provision active PoE ports on the switch.

• Power In Use: Lists the amount of PoE power presently in use.

• Operational Status: Indicates whether PoE power is available

on the switch. (Default: On ; shows Off if PoE power is not

available. Shows Faulty if internal or external PoE power is

oversubscribed or faulty.)

• Usage Threshold (%): Lists the configured percentage of

available PoE power provisioning the switch must exceed to

generate a usage notice in the form of an Event Log message

and an SNMP trap. If this event is followed by a drop in power

provisioning below the threshold, the switch generates

another SNMP trap and Event Log message. Event Log

messages are also sent to any optionally configured debug

destinations. (Default: 80%)

• Pre-standard Detect: Shows whether PoE for

pre-802.3af-standard powered devices is enabled on the

switch. (Default: Off; shows On when PoE for

pre-802.3af-standard powered devices has been enabled.)

ProCurve(config)# show power-management

Status and Counters - System Power Status

Pre-standard Detect : Off

Maximum Power : 406 W Operational Status : On

Power In Use : 75 W +/- 6 W Usage Threshold (%) : 80