Communication system, communication method, network information combining apparatus and network information combining program

摘要

A plurality of control devices 81 for setting a packet processing rule to one or more connected communication nodes and controlling packet transfer by the communication node; And a network information combining device 82 connected to the plurality of control devices 81. The network information coupling device 82 is a network information combining device that is connected to the network information indicating the connection relationship of the communication nodes controlled by the respective control devices 81 From each control device 81 and includes a network information combining unit 83 that combines a plurality of pieces of network information acquired from each control device 81 based on the boundary link information indicating the connection relationship at the boundary between the domains.