This OID controls the behavior of the MasterSwitch VM
when an overload condition is possible and additional
outlets are requested to be turned on.
Setting this OID to alwaysAllowTurnON (1) will always allow
the outlets to turn on.
Setting this OID to restrictOnWarning (2) will not allow
outlets to turn on if the sPDUMasterConfigVMHighLoadWarningThreshold
OID is exceeded.
Setting this OID to restrictOnOverload (3) will not allow
outlets to turn on if the MasterSwitch Vm is in an
overload condition.