The default option for PoE allocation is usage, which is what a PD attached to the port is allocated. You can
override this value by specifying the amount of power allocated to a port by using the class or value options.
usage
(Default) The automatic allocation by a PD.
class
Uses the power ramp-up signature of the PD to identify which power class the device will be in.
Classes and their ranges are shown in the following table.
value
A user-defined level of PoE power allocated for that port.
NOTE: The allowable PD requirements are lower than those specified for PSEs to allow for power
losses along the Cat-5 cable.
Table 10: Power classes and their values
Power class Value
0 Depends on cable type and PoE architecture. Maximum power level output of 15.4 watts at the
PSE.This is the default class; if there is not enough information about the load for a specific
classification, the PSE classifies the load as class 0 (zero).
1 Requires at least 4 watts at the PSE.
2 Requires at least 7 watts at the PSE.
3 15.4 watts
4 For PoE+Maximum power level output of 30 watts at the PSE.
Example:
To allocate by class for ports 6 to 8:
switch(config)# int 6-8 PoE-allocate-by class
Manually configuring PoE power levels
You can specify a power level (in watts) allocated for a port by using the value option. This is the maximum
amount of power that will be delivered.
To configure a port by value:
Procedure
1. Set the PoE allocation by entering the poe-allocate-by value command:
switch(config) # int A6 poe-allocate-by value
2. or in interface context:
switch(eth-A6) # poe-allocate-by value
90 Aruba 2530 Management and Configuration Guide for
ArubaOS-Switch 16.05
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