| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a 0/1 system selection circuit that can effectively utilize a band of a path in a standby system in a normal state. SOLUTION: The 0/1 system selection circuit where a path used to send information is selected for a 0 system path among a plurality of paths, the other paths are used for 1-system paths, and any 1-system path is selected again as a new 0-system path on the occurrence of a problem in the 0-system path, is provided with a monitor means that monitors a congestion state of the 0/1 system paths and includes a function that selects the 0-system or the 1-system in the unit of cells, packets, connections, VCs or VPs at the arrival of new congestion information from the monitor means and a function that selects the 0-system or the 1-system in the unit of cells, packets, connections, VCs or VPs on the basis of the congestion information at the arrival of new information to be sent in the unit of cells, packets, connections, VCs or VPs.</p> |
