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Chapter 12
| Link Aggregation Commands
Dynamic Configuration Commands
lacp timeout
Example
Console(config)#interface port-channel 1
Console(config-if)#lacp admin-key 3
Console(config-if)#
This command configures the timeout to wait for the next LACP data unit
(LACPDU). Use the no form to restore the default setting.
Syntax
lacp timeout {long | short}
no lacp timeout
long - Specifies a slow timeout of 90 seconds.
short - Specifies a fast timeout of 3 seconds.
Default Setting
long
Command Mode
Interface Configuration (Port Channel)
Command Usage
◆
The timeout configured by this command is set in the LACP timeout bit of the
Actor State field in transmitted LACPDUs. When the partner switch receives an
LACPDU set with a short timeout from the actor switch, the partner adjusts the
transmit LACPDU interval to 1 second. When it receives an LACPDU set with a
long timeout from the actor, it adjusts the transmit LACPDU interval to 30
seconds.
◆
If the actor does not receive an LACPDU from its partner before the configured
timeout expires, the partner port information will be deleted from the LACP
group.
◆
When a dynamic port-channel member leaves a port-channel, the default
timeout value will be restored on that port.
◆
When a dynamic port-channel is torn down, the configured timeout value will
be retained. When the dynamic port-channel is constructed again, that timeout
value will be used.
Example
Console(config)#interface port-channel 1
Console(config-if)#lacp timeout short
Console(config-if)#
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