Use this procedure to configure the system to disable MLT ports on shutdown.
From the navigation tree, click VLAN.
From the VLAN tree, click MLT/LACP.
Select the Globals tab.
Select the MltDisablePortsOnShutdown check box.
In the SmltSysId field, enter the LACP system ID for SMLT (MAC address).
On the tool bar, click Apply.