C
HAPTER
27
| Link Aggregation Commands
Dynamic Configuration Commands
– 1001 –
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
â—† Setting a lower value indicates a higher effective priority.
â—† 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.
â—† If an LAG already exists with the maximum number of allowed port
members, and LACP is subsequently enabled on another port using a
higher priority than an existing member, the newly configured port will
replace an existing port member that has a lower priority.
â—† 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
Console(config)#interface ethernet 1/5
Console(config-if)#lacp actor port-priority 128
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