CLI Reference Guide-R07

Chapter 13 | Power over Ethernet Commands
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Example
Console(config)#interface ethernet 1/1
Console(config-if)#power inline maximum allocation 8000
Console(config-if)#
power inline priority This command sets the power priority for specific ports. Use the no form to restore
the default setting.
Syntax
power inline priority priority
no power inline priority
priority - The power priority for the port.
Options: 1 (critical), 2 (high), or 3 (low)
Default Setting
3 (low)
Command Mode
Interface Configuration (Ethernet ports 1-8/24)
Command Usage
◆ Port priority determines which port will have power turned off first when the
switch power budget is exceeded.
◆ If the priority of two ports is the same, the port with the lowest port number
will have the higher priority. For example, if all port priorities are set to low, the
priority order will become port 1> port 2> port 3> port 4>port 5> port 6 and so
on.
◆ If the power demand from devices connected to the switch exceeds the power
budget setting as determined during bootup, the switch uses port power
priority settings to control the supplied power in the following ways:
■
A device connected to a low-priority port that causes the switch to exceed
its budget will not be supplied power. If for example port 24 on a ECS2100-
28P switch is configured as low, its power will be turned off first when the
switch PoE power budget is exceeded. This is to conserve power for higher
priority ports (or devices connected to the ports.
■
A device may be connected to a critical or high priority port. If during
switch bootup, this device causes the switch to exceed its power budget;
the switch will determine if it can supply power to the port or not. Power is
only provided to the port if the switch can drop power to one or more
lower-priority ports and remain within its configured power budget. Power
will be dropped from lower-priority ports starting in reverse sequence from
the highest PoE enabled port number (8 or 24).