Communication system, control apparatus, communication apparatus, communication control method and program

Disclosed is a centralized communication system, the control device, by accepting the request processing rules from the forwarding node each time a connection relationship between the communication device and the transfer node to which the packet is being sent is changed, the control load of the device is increased. [Configuration] communication system, a node requesting the processing rules for processing packets, in response to the request, and a control unit for notifying the processing rules to the nodes, comprising a control device, the destination of the packet communication in response to the notification to change the connection relationship between the device and the node, determine a forwarding path of the packet addressed to the communication device, and notifies the processing rule node for realizing the transfer path. .FIELD 1