Patent ID: 8037749

Claim:
A network monitoring method to be carried out by a processor in a network monitoring apparatus which is connected with a meteorological data server and a radio communication network and which monitors said radio communication network, said method comprising the steps of: a predicted amount of rainfall obtaining step of obtaining a predicted amount of rainfall generated in a predetermined time in a current line route in a radio communication network on the basis of weather forecast data of said meteorological data server; a prediction step of predicting whether or not a line failure occurs in said current line route caused by said predicted amount of rainfall assuming it rains actually in said current line route with an amount of rainfall substantially equivalent to said predicted amount of rainfall in said predetermined time in said current line route; and a change instruction step of instructing said radio communication network to change said current line route into a different line route on which it is predicted that no line failure caused by rainfall occurs and to control said radio communication network to change said current line route into said different line route, before said predetermined time passes, when it is predicted that said line failure occurs in said current line route.