HP Power over Ethernet (PoE/PoE+) Planning and Implementation Guide

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Planning Considerations

Specific Considerations for the HP 2910al-PoE Switches

The number of PDs supported per switch depends on the power allocation

and how much power each PD uses and how much power is left. The

examples in the following section show the power consumption in some

typical configurations.

Specific Considerations for the

HP 2910al-PoE Switches

The following is an example list of considerations during the planning phase

specific to the HP 2910al Switches:

■ What if power is lost to the switch?

• Power for the switch to operate (system power)

• Power for PoE devices

■ Which devices to plug into which ports and with what priorities?

• Port prioritization

• Port priority class

• Total watts available (382)

■ Which bank of 24 ports will be used?

■ Will load balancing be used?

■ Will any mini-GBICs be used and in what ports?

■ Should the HP 630 RPS/EPS be plugged into a different power source than

the switch it is going to backup?