| 摘要 |
A transmission line duplexing processing method comprises the steps of installing duplex transmission line between a plurality of terminal devices, the duplex transmission line being duplicated by first and second transmission lines, making it possible to send and receive data of a stream unit train between the terminal devices by using a TCP protocol, sending the data of the stream unit train simultaneously to the transmission lines, receiving data, and handling only data which is included in the data sent at the sending step and which has arrived earlier, as received data, detecting an abnormality caused on either of the first and second transmission lines, and responding to detection of occurrence of the abnormality on the transmission line conducted at the abnormality detecting step, to close the transmission line having the abnormality and conduct sending and receiving by using a remaining normal transmission line.
|
