| 摘要 |
An optical communication scheme is carried out by using a network having a plurality of nodes, a first network medium connected to a first group of the nodes, and a second network medium for transmitting control signals and connected to a second group of nodes. When initiating data transmission, any of the nodes transmits a transmission signal to the first network medium, and a receiving node that has received the signal loops-back the same signal to the second network medium thereby communicating information as to a state of congestion at the receiving node. A network for large volume data transmission can be realized by simple hardware and the state of congestion can be controlled using a simple method.
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