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2-5

Operating Rules

Configuring PoE/PoE+ Power Using the CLI

Operating Rules

Switch Priority Class

Using a priority class method, a power priority of Low (the default), High, or

Critical is assigned to each enabled PoE port. This assignment is done through

the command line interface of the switch and alters the hardware port-number

priority for power allocation.

■ Low (default) - This priority class receives power only if all other priority

classes are receiving power. If there is enough power to provision PDs on

only some of the ports with a low priority, then power is allocated to the

ports in ascending order, beginning with the lowest-numbered port in the

class until all available power is in use.

■ High - This priority class receives power only if all PDs on ports assigned

with a critical priority are receiving full power. If there is not enough

power to provision PDs on ports assigned with a high priority, then no

power goes to the low priority ports. If there is enough power to provision

PDs on only some of the high priority ports, then power is allocated to the

high priority ports in ascending order, beginning with lowest-numbered

high priority port, until all available power is in use.

■ Critical - This priority class is the first to be allocated power. If there is

not enough power to provision PDs on all of the ports configured for this

class, then no power goes to “High or Low” priority ports. If there is

enough power to provision PDs on only some of the critical ports, then

power is allocated to the critical ports in ascending order, beginning with

the lowest-numbered port in the class.

For more information, see the Management and Configuration Guide on the

ProCurve Web site at:

HP PROCURVE 2520 Planning And Implementation Guide

Other manuals for HP PROCURVE 2520