HP Table, Example of PoE Priority Operation

Power Over Ethernet (PoE) Operation for the Series 2600-PWR Switches

General PoE Operation

Table 2.	Example of PoE Priority Operation
Port	Priority	Configuration Command1 and Resulting Operation
	Setting
25 - 48	Critical	This priority class always receives power. If there is not enough power to provision PDs on
		all of the ports configured for this class, then no power goes to ports configured for High and
		Low priority. 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, which, in this case, is port 25. For this example, the CLI command
		to set ports to “Critical” is:
		HPswitch(config)# interface e 25-48 power critical
9 - 12	High	This priority class receives power only if all PDs on ports with a Critical priority setting are
		receiving full power. If there is not enough power to provision PDs on all ports with a High
		priority, then no power goes to ports with a Low priority. If there is enough power to provision
		PDs on only some of the “High” ports, then power is allocated to the “High” ports in ascending
		order, beginning, in this example, with port 9, until all available power is in use. For this
		example, the CLI command to set ports to “High” is:
		HPswitch(config)# interface e 9-12 power high
1 - 8	Low	This priority class receives power only if all PDs on ports with High and Critical priority
		settings are receiving power. If there is enough power to provision PDs on only some Low
		priority ports, then power is allocated to the ports in ascending order, beginning with the
		lowest-numbered port in the class (port 1, in this case), until all available power is in use. For
		this example, the CLI command to set ports to “Low”2 is:
		HPswitch(config)# interface e 1-8 power low
13 - 24	- n/a -	For this example, PoE is disabled on these ports. The CLI command for this setting is:

HPswitch(config)# no interface e 13-24 power

1For a listing of PoE configuration commands, with descriptions, refer to “Configuring PoE Operation” on page 11-

2In the default PoE configuration, the ports are already set to the low priority. In this case, the command is not necessary.

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