Configuring global LACP parameters

Use LACP parameters to manage switch ports and their port memberships to form link aggregation groups (LAG). Link Aggregation Control Protocol (LACP) can dynamically add or remove LAG ports, depending on their availability and states.

Procedure

In the navigation tree, expand the following folders: Configuration > VLAN.
Click MLT/LACP.
Click the LACP Global tab.
To enable LACP globally, select the Enable check box.
Configure the remaining parameters as required.

Important

Configuration changes to the LACP timers are not effective immediately. Link Aggregation Control Protocol timers are not reset until the next time LACP is restarted globally or on a port. This ensures consistency with peer switches.
Click Apply.

LACP Global Field Descriptions

Use the data in the following table to use the LACP Global tab.


Name	Description
Enable	Enables or disables LACP globally.
SystemPriority	Configures the system priority for all LACP enabled aggregators and ports. The default value is 32768.
FastPeriodicTime	Configures the number of milliseconds between periodic transmissions that use short timeouts. Sets this value to all LACP-enabled ports. The range is 200–20000. The default value is 1000.
FastPeriodicTimeOper	Displays the operating value of the fast periodic timer on the port. The default value is 1000.
SlowPeriodicTime	Configures the number of milliseconds between periodic transmissions that use long timeouts. All LACP enabled ports get the same value from this setting. The range is 10000–30000. The default value is 30000.
SlowPeriodicTimeOper	Displays the operating value of the slow periodic timer on the port. The default value is 30000.
AggrWaitTime	Configures the number of milliseconds to delay aggregation to allow multiple links to aggregate simultaneously. The range is 200–2000. The default value is 2000.
AggrWaitTimeOper	Displays the operating value of the aggregate wait timer on the port. The default value is 2000.
TimeoutScale	Configures the value used to calculate timeout time from the periodic time. All LACP-enabled ports get the same value from this setting. The range is 2–10. The default value is 3.
TimeoutScaleOper	Displays the operating value of the timeout scale on the port. The default value is 3.
SysId	Specifies the LACP system ID. The default value is f8:73:a2:00:90:00.
SmltSysId Note: Exception: not supported on 5320 Series.	Specifies the LACP system ID for Split MultiLink Trunking (SMLT).