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Power Over Ethernet (PoE/PoE+) Operation
Configuring PoE Operation
Configuring the PoE Port Priority Level
Syntax: interface < port-list > power-over-ethernet [ critical | high | low ]
Reconfigures the PoE priority level on <port-list >. For a given level,
ports are prioritized by port number in ascending order. For
example, if ports A1-A24 have a priority level of critical, port A1
has priority over ports A2-A24.
If there is not enough power available to provision all active PoE
ports at a given priority level, then the lowest-numbered port at that
level will be provisioned first. For chassis switches, the lowest-
numbered port at that level starting with module A, then B, C, and
so on is provisioned. PoE priorities are invoked only when all active
PoE ports cannot be provisioned (supplied with PoE power).
• Critical: Specifies the highest-priority PoE support for
<port-list >. The active PoE ports at this level are provisioned before
the PoE ports at any other level are provisioned.
• High: Specifies the second priority PoE support for
<port-list >. The active PoE ports at this level are provisioned before
the Low priority PoE ports are provisioned.
• Low: (the default): Specifies the third priority PoE support for
<port-list >. The active PoE ports at this level are provisioned only
if there is power available after provisioning any active PoE
ports at the higher priority levels.
In chassis switches, you can use one command to set the same
priority level on PoE ports in multiple modules. For example, to
configure the priority to High for ports c5-c10, C23-C24, D1-D10,
and D12, you could use this command:
ProCurve(config)# interface c5-c10,c23-c24,
d1-d10,d12 power-over-ethernet high
Suppose, for example, that you configure the PoE priority for a module in slot
C as shown in table 11-1.
11-9