3Com Switch 7750 Configuration Guide

PoE Configuration 721
n
In auto mode, when the switch is reaching its full load in supplying power, the
switch decides whether to supply power to remote PDs on a port based on the
port priority. Note that the switch can compare only the priority of ports on the
same module.
PoE Configuration
PoE Configuration Tasks
Configuring the PoE
Feature of a Switch
n
When setting the maximum PoE power supplied by the switch with the poe
power max-value command, you must set it to a value greater than the total
power that has been distributed to the modules. Otherwise, this command cannot
be executed successfully. The maximum power that a switch can supply ranges
from 37 W to 2,400 W.
Configuring the PoE
Feature of a
PoE-enabled Board
Table 579 PoE configuration tasks
Operation Description Related section
Configure the PoE feature of
a switch
Required “Configuring the PoE Feature of a
Switch” on page 721
Configure the PoE feature of
a PoE-enabled board
Required “Configuring the PoE Feature of a
PoE-enabled Board” on page 721
Configure the PoE feature of
a PoE port
Required “Setting the PoE Feature of a PoE
Port” on page 722
Upgrade the PSE processing
software online
Optional “Upgrading the PSE Processing
Software Online” on page 723
Table 580 Configure the PoE feature on a port
Operation Command Description
Enter system view system-view -
Configure the maximum PoE
power that a switch can
supply
poe power max-value
max-value
Optional
By default, the maximum PoE
power that a switch can
supply is 2,400 W.
Table 581 Configure the PoE feature of a PoE-enabled board
Operation Command Description
Enter system view system-view -
Set the PoE management
mode of the switch
poe
power-management { auto
| manual } slot slot-number
Optional
By default, the switch
manages PoE in the manual
mode.
Enable the PoE feature of the
board
poe enable slot slot-number Optional
By default, the PoE feature is
disabled on a module.
Set the maximum power that
the module can supply
poe max-power max-power
slot slot-number
Optional
By default, a module provides
up to 37W of power.