EXCHANGE NODE, COMMUNICATION SYSTEM, AND EXCHANGE NODE CONTROL METHOD

摘要

It is possible to provide an exchange node and an exchange node control method enabling a transmission path search at an absolute position of a call setting request packet and enabling maintenance management of a safe network. The exchange node and the exchange node control method includes a position information calculation unit for receiving radio from a positioning satellite and calculating the local position and adds the local position information calculated by the position information calculation unit and an identifier to header information on the call setting request packet when setting a connection. Moreover, a position information judgment unit judges whether a combination of position information on the exchange node nearest to the terminal of the caller recorded in the call setting request packet header information and the identifier is stored in a storage unit in advance. A connection control unit receives setting of connection of a call setting request packet which has been judged to coincide, with a higher priority.