Power Over Ethernet (PoE) Operation
Configuring PoE Operation
Configuring PoE Operation
In the default configuration, PoE support is enabled on the PoE ports. The
default priority for all ports is Low and the default power notification threshold
is 80 (%).
Using the CLI, you can:
â– Disable or re-enable PoE operation on individual PoE ports
â– Enable support for pre-standard devices
â– Change the PoE priority level on individual PoE ports
â– Change the threshold for generating a power level notice
Disabling or Re-Enabling PoE Port Operation
Syntax: [no] interface <port-list > power-over-ethernet
Re-enables PoE operation on <port-list > and restores the priority
setting in effect when PoE was disabled on <port-list >. The no form
of the command disables PoE operation on <port-list >. (Default:
All PoE ports are initially enabled for PoE operation at Low
priority. If you configure a higher priority, this priority is
retained until you change it.)
Note: For PoE, disabling all ports allows the 22 W of minimum
PoE power to be recovered and used elsewhere. You must disable
ALL ports for this to occur.
Enabling Support for Pre-Standard Devices
By default, all ProCurve PoE switches support 802.3af-standard PDs. In
addition, the switches covered in this guide have the ability to supply power
to pre-802.3af-standard devices, such as legacy (non-standard) IP phones.
Note When the switch is in legacy detection mode, the detection signature range is
expanded beyond the IEEE specification. This allows non-compliant devices
to be powered.
11-7
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