MANAGEMENT SYSTEM, NETWORK MANAGEMENT METHOD, NETWORK SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a system and a method capable of using communication resources effectively, while satisfying the delay quality requested by the flow.SOLUTION: A network management system 1 for connection with a plurality of network devices 2-1 through 2-7 transmitting a flow by an existing logical path set for each flow includes a path calculation unit 12 for determining the change of a transfer class in at least one of a plurality of network devices on the existing logical path out of a plurality of existing logical path, based on the request delay quality of flow, the delay quality of transfer class of the network device and the information of the existing logical path allocated for each flow, and a path setting unit 14 for setting the change information of transfer class determined in the path calculation unit in the network device.SELECTED DRAWING: Figure 1