NETWORK MANAGEMENT METHOD, NETWORK MANAGEMENT SYSTEM, AND NETWORK MANAGEMENT DEVICE

摘要

PROBLEM TO BE SOLVED: To restrain an impact on a communication service in switching of a communication path.SOLUTION: A network management method manages information on a plurality of paths (PATH_1-PATH_4) including node devices from an entrance node to an exit node, allocates one or more works (b) during operation including stopping a node device not included in any of the plurality of paths (PATH_1-PATH_4) on the basis of information (a-d) on one or more works each including stopping a node device to a first time band, allocates one or more works (a, c, d) during operation including stopping a node device included in any of the plurality of paths to a second time band not overlapping with the first time band, determines a plurality of paths (PATH_1-PATH_4) including node devices from the entrance node to the exit node so as not to include any of the node devices stopped in the works (a, c, d) allocated to the second time band, and has an information processing device (20) perform processing to reconfigure the determined plurality of paths before the second time band.