Brocade FastIron Ethernet Switch Administration Guide - Manual (Page 275)

configure either a maximum power level or a power class. You cannot configure both. You can,
however, configure a maximum power level on one port and a power class on another port.
• The Brocade PoE or PoE+ device will adjust the power on a port only if there are available power
resources. If power resources are not available, the following message will display on the console
and in the Syslog:
PoE: Failed power allocation of 30000 mwatts on port 1/1/21. Will retry when more
power budget.
• FastIron devices pre-allocate power as per the configured maximum power for a physically
operational PoE or PoE+ configured port. However in an ICX 6450-C12 device that is operational
without direct power supply and has pass-through power, there is no pre-allocation of power. Instead,
power is allocated only when a powered device is connected to the port.
Configuring power levels command syntax
To configure the maximum power level for a power consuming device, enter commands such as the
following.
device#configure terminal
device(config)# interface ethernet 1/1
device(config-if-e1000-1/1)# inline power power-limit 14000
These commands enable inline power on interface ethernet 1 in slot 1 and set the PoE power level to
14,000 milliwatts (14 watts).
Syntax: inline powerpower-limit power-level
The power level variable is the maximum power level in number of milliwatts. The following values are
supported:
• PoE - Enter a value from 1000 through 15,400. The default is 15,400.
• PoE+ - Enter a value from 1000 through 30,000. The default is 30,000.
NOTE
Do not configure a power level higher than 15,400 for standard PoE PDs, which support a maximum of
15,400 milliwatts. Setting the power level higher than 15,400 could damage the PD.
For information about resetting the maximum power level, refer to Resetting PoE parameters on page
278.
Setting the power class for a PoE power-consuming device
A power class specifies the maximum amount of power that a Brocade PoE or PoE+ device will supply
to a power consuming device. The table below shows the different power classes and their respective
maximum power allocations.
Power classes for PDs TABLE 39
Class Usage Power (watts) from Power Sourcing Device
Standard PoE PoE+
0 default 15.4 15.4
Configuring power levels command syntax
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