COMMUNICATION NETWORK SYSTEM AND PATH CONNECTION CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To provide a path connection control method by which node units can momentarily attain path connection control at a pre-designated time and to provide a communication network system. SOLUTION: A network management unit 10 supplies path control information in advance to node units 20 being components of an ATM network before a designated time comes, each node unit can increment the time synchronously with a network synchronization clock, select path control information whose time reaches a designated time and autonomously execute the path connection control.