Protocol testing system and protocol testing method

A protocol testing system for carrying out testing to reproduce problems of a protocol in a communication between a client apparatus and server apparatus, comprising:

• a generation apparatus provided with the function of said client apparatus for generating test data of a specific pattern for generating traffic with said server apparatus and sending this generated test data to said server apparatus;
• an emulator apparatus connected between said generation apparatus and said server apparatus for processing said test data sent from said generation apparatus to said server apparatus and response data sent back from said server apparatus to said generation apparatus in response to said test data according to a pseudo-communication environment constructed in the same way as for a communication environment in which said protocol problems have occurred;
• and
• a testing control apparatus which carries out settings and control for performing said test data generation processing by said generation apparatus, said pseudo-communication environment construction processing by said emulator apparatus and response processing for sending back said response data by said server apparatus.