tLagLACPMode represents the mode in which LACP will operate.
If the value is set to 'passive', LACP places all member ports of a
lag into a passive negotiating state. When this is the case member
ports of the lag respond to LACP packets they receive but do not
initiate LACP packet negotiation.
If the value is set to 'active', LACP places all member ports of a lag
in to an active negotiation state. When this occurs the port will
initiate LACP negotiation immediately once the port achieves link up
state. At least one of the peer lag ports must be configured as
active to initiate LACP.
The default mode is passive.