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Power Over Ethernet (PoE) Operation

General PoE Operation

For additional PoE configuration information for the ProCurve 8212zl switch,

refer to the PoE Planning and Implementation Guide, which is available

from the ProCurve Networking web site at www.procurve.com. (Click on

technical support, then Product manuals (all)).

Configuration Options

In the default configuration, all Gig-T ports on the PoE module in a ProCurve

82121zl switch are configured to support PoE operation. You can:

■ Disable or re-enable per-port PoE operation on individual ports to

help control power usage and avoid oversubscribing PoE resources.

■ Configure per-port priority for allocating power in case a PoE module

becomes oversubscribed and must drop power for some lower-

priority ports to support the demand on other, higher-priority ports.

■ Configure one of the following:

• A global power threshold that applies to all modules on the switch.

This setting acts as a trigger for sending a notice when the PoE power

consumption on any PoE module installed in the switch crosses the

configured global threshold level. (Crossing the threshold level in

either direction—PoE power usage either increasing or decreasing—

triggers the notice.) The default setting is 80%.

• A per-slot power threshold that applies to an individual PoE module

installed in the designated slot. This setting acts as a trigger for

sending a notice when the module in the specified slot exceeds or

goes below a specific level of PoE power consumption.

11-7

HP ProCurve Management And Configuration Guide

Other manuals for HP ProCurve