How Is Power Allocation Prioritized; Configuring Poe Operation; Disabling Or Re-Enabling Poe Port Operation; Enabling Support For Pre-Standard Devices - HP Aruba JL253A Management And Configuration Manual

For arubaos-switch 16.08

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priority ports to meet the power demand on other, higher-priority ports. This operation occurs regardless of the

order in which PDs connect to the switch's PoE-enabled ports.

How is power allocation prioritized?

There are two ways that PoE power is prioritized:

Using a priority class method, a power priority of Low (the default), High, or Critical is assigned to each

enabled PoE port.

Using a port-number priority method, a lower-numbered port has priority over a higher-numbered port within

the same configured priority class, For example, port A1 has priority over port A5 if both are configured with

High priority.

In the default configuration, PoE support is enabled on the ports in a PoE switch. The default priority for all ports

is Low and the default power notification threshold is 80 (%).

Using the CLI, you can:

Disable or re-enable PoE operation on individual PoE ports

Enable support for pre-standard devices

Change the PoE priority level on individual PoE ports

Change the threshold for generating a power level notice

Manually allocate the amount of PoE power for a port by usage, value, or class

Allocate PoE power based on the link-partner's capabilities via LLDP

[no] interface <port-list> power-over-ethernet

Re-enables PoE operation on <port-list> and restores the priority setting in effect when PoE was disabled on

<port-list>.

The no form of the command disables PoE operation on <port-list>.

Default: All PoE ports are initially enabled for PoE operation at Low priority. If you configure a higher priority, this

priority is retained until you change it.

The switches covered in this guide also support some pre-802.3af devices. For a list of the supported devices,

see the FAQ for your switch model.

[no] power-over-ethernet pre-std-detect

Detects and powers pre-802.3af standard devices.

Chapter 4 Power Over Ethernet (PoE/PoE+) Operation