This variable can be used to define the operational
state of the Multi-Point MAC Control sublayer as defined
in [802.3ah] clause 64. Selecting admin for an interface
with Multi-Point MAC Control sublayer. When selecting
the value as True the interface Multi-Point control
protocol is enabled. When selecting the value as False
the interface acts as if the Multi-point Control
protocol does not exist. Reading reflects the state of
the attribute and the operation of the Multi-point
control protocol mode of the interface.
Writing can be done all the time.
This attribute is relevant for an OLT and an ONU.