Description: This attribute indicates the state of the trace session. The active value is the normal state for a running trace session. The waitingForSession, waitingForProvisioningData, callingReceiver and binding values are all normal transient states used to establish a session with the trace receiver on receipt of a Start command. In the waitingForSession state, a trace session is being allocated. In the waitingForProvisioningData state, a trace session has been allocated and receiver provisioning data, used to setup the call the the receiver, is being retrieved. In the callingReceiver state, the call to the receiver is being established. In the binding state, the call to the receiver has been established and the service data path is being adjusted to include trace. The unbinding, clearingCallToReceiver and releasingSession values are all normal transient states used to disconnect a session with the trace receiver on receipt of a Stop command. In the unbinding state, the service data path is being adjusted to remove trace. In the clearingCallToReceiver state, the call to the receiver is being cleared. In the releasingSession state, a trace session is being deallocated. A value of abortingDueToCallFailure indicates that the call to the trace receiver has disconnected unexpectedly and trace is stopping. The clear cause and diagnostic for the failure is reported. Correct the fault indicated and retry the Start command. Values of initializing and idle can never be seen since these states occur before a Session component is created and after it is destroyed.