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Link Aggregation Commands
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lacp port-priority
This command configures LACP port priority. Use the no form to restore the default
setting.
Syntax
lacp {actor | partner} port-priority priority
no lacp {actor | partner} port-priority
• actor - The local side an aggregate link.
• partner - The remote side of an aggregate link.
• priority - LACP port priority is used to select a backup link.
(Range: 0-65535)
Default Setting
32768
Command Mode
Interface Configuration (Ethernet)
Command Usage
• Setting a lower value indicates a higher effective priority.
• If an active port link goes down, the backup port with the highest priority is
selected to replace the downed link. However, if two or more ports have the
same LACP port priority, the port with the lowest physical port number will be
selected as the backup port.
• Once the remote side of a link has been established, LACP operational
settings are already in use on that side. Configuring LACP settings for the
partner only applies to its administrative state, not its operational state, and will
only take effect the next time an aggregate link is established with the partner.
Example
show lacp
This command displays LACP information.
Syntax
show lacp [port-channel] {counters | internal | neighbors | sys-id}
• port-channel - Local identifier for a link aggregation group. (Range: 1-24)
• counters - Statistics for LACP protocol messages.
• internal - Configuration settings and operational state for local side.
• neighbors - Configuration settings and operational state for remote side.
• sys-id - Summary of system priority and MAC address for all channel
groups.
Console(config)#interface ethernet 1/5
Console(config-if)#lacp actor port-priority 128