This object is used to create a new row or modify or delete an existing row in this table. The status column has six defined values: The status column has six defined values: - 'active', which indicates that the conceptual row is available for use by the managed device; - 'notInService', which indicates that the conceptual row exists in the agent, but is unavailable for use by the managed device (see NOTE below); - 'notReady', which indicates that the conceptual row exists in the agent, but is missing information necessary in order to be available for use by the managed device; - 'createAndGo', which is supplied by a management station wishing to create a new instance of a conceptual row and to have its status automatically set to active, making it available for use by the managed device; - 'createAndWait', which is supplied by a management station wishing to create a new instance of a conceptual row (but not make it available for use by the managed device); and, - 'destroy', which is supplied by a management station wishing to delete all of the instances associated with an existing conceptual row. Whereas five of the six values (all except 'notReady') may be specified in a management protocol set operation, only three values will be returned in response to a management protocol retrieval operation: 'notReady', 'notInService' or 'active'. That is, when queried, an existing conceptual row has only three states: it is either available for use by the managed device (the status column has the value 'active'); it is not available for use by the managed device, though the agent has sufficient information to make it so (the status column has the value 'notInService'); or, it is not available for use by the managed device, and an attempt to make it so would fail because the agent has insufficient information (the state column has the value 'notReady'). For a detailed description of this object, please refer to SNMPv2-TC MIB.