| 摘要 |
In a case where data is output, a transmission node number stored by a transmission node number storing unit (16) is updated. As a result of comparison between a transmission node number included in data input by an input unit (11) and the transmission node number stored by the transmission node number storing unit (16), in a case where the transmission node number stored by the transmission node number storing unit (16) is larger than the transmission node number included in the data input by the input unit (11), by overwriting the transmission node number included in data output by an output unit (12) with the transmission node number stored in the transmission node number storing unit (16), congestion control matching the communication state of a communication route can be efficiently realized. |
