| 摘要 |
PROBLEM TO BE SOLVED: To automatically execute the change/update of a reception managing table at a packet reception terminal during ordinary operation by providing a processing means for abandoning a received packet by judging double reception when that packet is already registered but for performing registering processing when that packet is not registered. SOLUTION: This device is provided with a packet reception part 1 for receiving a packet and a reception managing processing part 2 for performing processing to show whether this packet is already registered in a reception table or not. The respective identification codes of packets 1, 2...N are stored in a reception table 3 at this reception managing processing part 2. In reception managing processing at the reception managing processing part 2, it is judged whether the received packet is already registered or not and when it is registered, processing is finished by abandoning that reception packet by judging double reception. When the packet is not registered, registering processing is performed to the reception managing table by a first-in/first-out(FIFO) system, old data are abandoned and latest data are stored. |
