| 摘要 |
A ring connection apparatus according to one embodiment is provided with: a frame receiver that receives frames to be transmitted to one of the plurality of ring networks from each of the plurality of networks; and a frame transmitter that transmits each of frames, a passing frame to be transmitted from a device to another device inside said one ring network and a crossing frame to be transmitted to a device in said one ring network from a device in another ring network different from said one ring network, to said one ring network within the range of a band, which is separately determined in advance.
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