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Cisco ME 3800X and ME 3600X Switch Command Reference
OL-28238-01
Chapter 2 Cisco ME 3800X and ME 3600X Switch Cisco IOS Commands
lacp port-priority
lacp port-priority
To configure the port priority for the Link Aggregation Control Protocol (LACP), use the lacp
port-priority command in interface configuration mode. To return to the default setting, use the no form
of this command.
lacp port-priority priority
no lacp port-priority
Syntax Description
Defaults The default is 32768.
Command Modes Interface configuration
Command History
Usage Guidelines The lacp port-priority interface configuration command determines which ports are bundled and which
ports are put in hot-standby mode when there are more than eight ports in an LACP channel group. This
command takes effect only on EtherChannel ports that are already configured for LACP. If the interface
is a user network interface (UNI), you must use the port-type nni or port-type eni interface
configuration command to change the interface to an NNI or ENI before configuring lacp port-priority.
In priority comparisons, numerically lower values have higher priority. The switch uses the priority to
decide which ports should be put in standby mode when there is a hardware limitation that prevents all
compatible ports from being active. If two or more ports have the same LACP port priority (for example,
they are configured with the default setting of 65535), an internal value for the port number determines
the priority.
Note The LACP port priorities are only effective if the ports are on the switch that controls the LACP link.
See the lacp system-priority global configuration command for information about determining which
switch controls the link.
Use the show lacp internal privileged EXEC command to display LACP port priorities and internal port
number values.
For information about configuring LACP on physical ports, see the “Configuring EtherChannels”
chapter in the software configuration guide for this release.
You can verify the configuration by entering the show lacp [channel-group-number] internal privileged
EXEC command.
priority Port priority for LACP. The range is 1 to 65535.
Release Modification
12.2(52)EY This command was introduced.
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