Optical communication network and the optical communication network design manner which is used for that

摘要

An optical communication network is provided for reducing a required number of transmitters and receivers. A management device gives the amount of traffic passing through optical cross-connect devices along a route as an evaluation value for the route (step S6), and selects the route which has the largest evaluation value (step S7). The management device determines whether or not the evaluation value given to the selected candidate route is larger than a predefined reference value (step S8). When larger than the reference value and the management device outputs the route as an optical transmission path which includes at least one or more optical add-drop multiplexers (step S9).