COMMUNICATION SYSTEM, CONTROL DEVICE, FORWARDING NODE, COMMUNICATION CONTROL METHOD, AND PROGRAM

摘要

A communication system includes a control device that determines packet processing rules; a forwarding node that processes a received packet using a processing rule that includes one of a plurality of processing rules transmitted from the control device and that corresponds to the received packet; a comparison unit that compares a first value with a second value wherein the first value is calculated from a first processing rule group held in the forwarding node and the second value is calculated from a second processing rule group determined by the control device for transmission to the forwarding node; and a confirmation unit that confirms if the forwarding node and the control device are synchronized based on the comparison result.