A stpxLoopInconsistencyUpdate notification is sent by a bridge when an instance of stpxLoopInconsistencyState is created or destroyed. That is, when an loop-inconsistency is discovered in the VLAN's or instance's Spanning Tree for a particular port, or when such an loop-inconsistency disappears. For creation, the value of stpxLoopInconsistencyState in the notification is true(1); for deletion, the value is false(2). The object value of stpxSpanningTreeType indicates which Spanning Tree protocol is running when an instance of stpxLoopInconsistencyState is created or destroyed.