Reference Guide

532 | Link Aggregation Control Protocol
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LACP Configuration Tasks
The tasks covered in this section are:
• Create a LAG
• Configure the LAG interfaces as dynamic
• Set the LACP long timeout
• Monitor and Debugging LACP
• Configure Shared LAG State Tracking
Create a LAG
To create a dynamic port channel (LAG), define the LAG and then the LAG interfaces. Use the interface
port-channel
and switchport commands, as shown in the following example, which uses the example of
LAG 32:
FTOS(conf)#interface port-channel 32
FTOS(conf-if-po-32)#no shutdown
FTOS(conf-if-po-32)#switchport
The LAG is in the default VLAN. To place the LAG into a non-default VLAN, use the tagged command
on the LAG :
FTOS(conf)#interface vlan 10
FTOS(conf-if-vl-10)#tagged port-channel 32
Configure the LAG interfaces as dynamic
After creating a LAG, configure the dynamic LAG interfaces. The example below shows ports 3/15, 3/16,
4/15, and 4/16 added to LAG 32 in LACP mode with the command
port-channel-protocol lacp.
FTOS(conf)#interface Gigabitethernet 3/15
FTOS(conf-if-gi-3/15)#no shutdown
FTOS(conf-if-gi-3/15)#port-channel-protocol lacp
FTOS(conf-if-gi-3/15-lacp)#port-channel 32 mode active
...
FTOS(conf)#interface Gigabitethernet 3/16
FTOS(conf-if-gi-3/16)#no shutdown
FTOS(conf-if-gi-3/16)#port-channel-protocol lacp
FTOS(conf-if-gi-3/16-lacp)#port-channel 32 mode active
...
FTOS(conf)#interface Gigabitethernet 4/15
FTOS(conf-if-gi-4/15)#no shutdown
FTOS(conf-if-gi-4/15)#port-channel-protocol lacp
FTOS(conf-if-gi-4/15-lacp)#port-channel 32 mode active
...
FTOS(conf)#interface Gigabitethernet 4/16
FTOS(conf-if-gi-4/16)#no shutdown
FTOS(conf-if-gi-4/16)#port-channel-protocol lacp
FTOS(conf-if-gi-4/16-lacp)#port-channel 32 mode active
The port-channel 32 mode active command shown above may be successfully issued as long as there is
no existing static channel-member configuration in LAG 32.