Command Line Interface
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• 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
lacp admin-key (Port Channel)
This command configures a port channel's LACP administration key string. Use the
no form to restore the default setting.
Syntax
lacp admin-key key
[no] lacp admin-key
key - The port channel admin key is used to identify a specific link
aggregation group (LAG) during local LACP setup on this switch.
(Range: 0-65535)
Default Setting
0
Command Mode
Interface Configuration (Port Channel)
Command Usage
• Ports are only allowed to join the same LAG if (1) the LACP system priority
matches, (2) the LACP port admin key matches, and (3) the LACP port
channel key matches (if configured).
• If the port channel admin key (lacp admin key - Port Channel) is not set when
a channel group is formed (i.e., it has the null value of 0), this key is set to the
same value as the port admin key (lacp admin key - Ethernet Interface) used
by the interfaces that joined the group. Note that when the LAG is no longer
used, the port channel admin key is reset to 0.
Example
Console(config)#interface ethernet 1/5
Console(config-if)#lacp actor admin-key 120
Console(config-if)#
Console(config)#interface port channel 1
Console(config-if)#lacp admin-key 3
Console(config-if)#
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