Patent ID: 8671207

Claim:
A communication network system comprising: plural nodes; a relay device interposed between said nodes; and a setting device connected to said relay device, wherein said relay device comprises: a relay unit configured to relay between said nodes; a partition information storage unit configured to store partition information for indicating whether or not said relay unit relays between said nodes; and a routing unit configured to control said relay unit in accordance with the partition information stored in said partition information storage unit, and wherein said setting device comprises: a reception unit configured to receive broker information indicative of a request of relaying between said nodes; a broker information storage unit configured to store the broker information received by said reception unit; a broker information setting unit configured to generate the partition information based on the broker information stored in said broker information storage unit; and a partition information update unit configured to update the partition information stored in said partition information storage unit of said relay device to the partition information generated by said broker information setting unit.