| 摘要 |
In a signal transmission method and device which perform squelch processing in order to support a BLSR switchover when a single fault has occurred and when a plurality of faults have occurred over a ring network, NUT information set in a squelch information overhead for a predetermined channel within a channel group over a ring network is extracted; and a NUT table for the predetermined channel is created based on the extracted NUT information. Furthermore, the NUT information is inputted from an outside to be set in the squelch information overhead, and one transmission device transmits a frame including the squelch information overhead to the ring network, and the other transmission device receives the frame from the ring network to be transferred.
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