Describes a network or device event that may be of interest in fault isolation and troubleshooting. Events are identified by an AutonomousType (OBJECT IDENTIFIER), bfcEventId, to allow a single table to contain events defined in this MIB plus events defined by a particular implementation - for example, as documented in the private enterprise MIB definition for a particular device or system feature. Although multiple rows may have the same value of bfcEventId, no two such rows will have the same value of bfcEventIndex, allowing for multiple instances of a given event ID to exist in the table simultaneously.