3.3.5.6 Logged In State

If a TDS of type 1, 3, 7, or 14 (see section 2.2.3.1.1) arrives, then the TDS server begins processing by raising an event to the upper layer containing the data of the client request and entering the Client Request Execution state. If any other TDS types arrive, then the server MUST enter the Final State state. The TDS server MUST continue to listen for messages from the client while awaiting notification of client request completion from the upper layer.