Configuring LACP on a VLAN

Use this procedure to configure LACP on a VLAN.

About this task

Important

Configuration at the global level overrides and resets all settings at the VLAN level.

Enter VLAN Interface Configuration mode:

enable

configure terminal

interface vlan <1–4059>
Configure global aggregation wait time for the VLAN:

lacp aggr-wait-time <200-2000>
Enable LACP:

lacp enable
Configure the global periodic time:

lacp enable [fast-periodic-time <200-20000>] [slow-periodic-time <10000-30000>]

If you do not configure the optional parameters, the system uses the default values.
Configure a global LACP system ID.

lacp smlt-sys-id 0x00:0x00:0x00:0x00:0x00:0x00
Configure the system priority:

lacp system-priority <0-65535>
Configure the timeout-scale:

lacp timeout-scale <2–10>

Switch:1(config)#interface vlan 20

Switch:1(config-if)#lacp fast-periodic-time 2000

Switch:1(config-if)#lacp enable

Use the data in the following table to use the lacp command.


Variable	Value
aggr-wait-time `<200–2000>`	Configures the aggregation wait time (in milliseconds) globally. The default is 2000.
enable	Enables LACP for the VLAN. The default is disabled.
fast-periodic-time `<200–20000>`	Configures the fast periodic time (in milliseconds) globally for the VLAN. The default is 1000 ms.
slow-periodic-time `<10000-30000>`	Configures the slow periodic time globally for the VLAN. The default is 30000 ms.
smlt-sys-id `0x00:0x00:0x00:0x00:0x00:0x00`	Configures the LACP system ID globally.
system-priority `<0-65535>`	Configures the LACP system priority globally.
timeout-scale `<2-10>`	Configures a timeout scale for the VLAN. The default value is 3. The LACP timeout is equal to the slow periodic time or fast periodic time multiplied by the timeout-scale, depending how you configure the timeout-time variable.