Patent ID: 8391137

Claim:
A management system for managing communication in a network, comprising: a plurality of communication apparatuses in connection with the network for performing communication; and a management apparatus configured to register the communication apparatuses, and to transmit a reset instruction, upon detection of an abnormality, that causes each of the communication apparatuses to perform reset processing, wherein each of the communication apparatuses comprises a self reboot waiting timer configured to wait for a time period based on a first terminal-specific value and then to initiate the reset processing responsive to the reset instruction transmitted by the management apparatus, the reset processing to be followed by registration processing to register with the management apparatus, an arithmetic processor configured to generate the first terminal-specific value by performing an arithmetic processing with a predetermined function upon a specific variable that is unique to each one of the communication apparatuses in the network, and a communication controller configured to communicate with other ones of the communication apparatuses that are managed by the management apparatus on the network in order to mutually exchange the first terminal-specific value with terminal-specific values of the other ones of the communication apparatuses and to confirm whether the first terminal-specific value is unique with respect to the terminal-specific values of the other ones of the communication apparatuses, and upon detection that the first terminal-specific value is not unique, to instruct the arithmetic processor to generate a second terminal-specific value that is different from the first terminal-specific value.