OPERATION CONTROL INFORMATION CHANGE METHOD FOR COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To prevent load from concentrating on a network monitoring device even in the case of changing a program for plural network devices by performing program change among adjacent networks with one another and also to drastically reduce time for changing the program. SOLUTION: A network monitoring device 2 designates network devices 1b and 1d as a master, the network device 1b transfers a program to adjacent network devices 1a and 1c and the network device 1d transfers the program to an adjacent network device 1e.