Indicates whether Mac Reduction feature (to
reduce the number of MAC addresses used in
bridge identifier) is operationaly enabled
on the device or not.
If the value of this object is true(1), then
the accepted values for dot1dStpPriority
in BRIDGE-MIB should be multiples of 4096 plus
bridge instance ID, such as VlanIndex. Changing
this object value might cause the values of
dot1dBaseBridgeAddress and dot1dStpPriority
in BRIDGE-MIB to be changed also.