COMMUNICATION QUALITY CONTROL SYSTEM FOR NETWORK

摘要

PROBLEM TO BE SOLVED: To realize effective warrant of quality of service QOS by controlling properly and effectively execution of an application program-without being bound by sequence of requests in the Internet. SOLUTION: A traffic control center TCC 1 supervises service quality in each application program working in a QOS control area (QCA) on the Internet 7 to generate control information to each application program for proper control of it. The TCC 1 checks a utility state from each application program in the QCA to grasp it at all times and controls the share of resource according to prescribed priority to control execution priority of each application program or to prevent a network overload or to smooth the load. A traffic control box TCB 3 gives a request content with respect to the service quality of each application program executed by application systems 4, 5 to the TCC 1 and controls the operation of each application program based on control information given from the TCC 1.