3.3.5.3.5.3 Connection Disconnected
When a CONNTYPE_TXUSER_TRACE (section 2.2.8.3.5) connection is disconnected, the application MUST perform the following actions:
If the connection state is Awaiting Trace Response:
Return a failure result to the higher-layer business logic.
Otherwise, the event MUST be processed as specified in section 3.1.8.3.