MULTICAST INFORMATION DISTRIBUTION CONTROL METHOD AND SYSTEM, AND SERVER AND CLIENT

摘要

PROBLEM TO BE SOLVED: To provide a multicast information distribution control method and system that can provide an opportunity of join processing or leave processing by a client from other communication units than the client. SOLUTION: The task above can be attained by the multicast information distribution control method and system that allows the communication units other than the client to transmit request information to the client according to a communication protocol other than the communication protocol relating to multicast distribution of the information and available by a prescribed communication network and the client conducts the prescribed processing on the basis of the request information received by the client so that the client can receive the information multicast-distributed from a server or terminate the reception.