Communication network device that compares first and second identification number of packet to determine if they are in conformance or non-conformance with self-ID packet

摘要

A communication device including a comparison unit that compares a first identification number of which notification is provided by a packet that sequentially assigns identification numbers to a plurality of nodes in a network, and a second identification number, which is assigned to the communication device. A control unit notifies other nodes of the second identification number and that the identification number of the communication device has not been changed when the first identification number and the second identification number are in non-conformance.