| 摘要 |
PROBLEM TO BE SOLVED: To improve reliability of a communication system.SOLUTION: In a node through which a reserved line for a working line is routed, identification information of a start point node and an end point node contained in a signaling message transmitted to the end point node from the start point node through the reserved line for use reservation setting of the reserved line is stored, and fault detection reporting to a destination identified by the stored identification information is performed in accordance with fault detection of the reserved line. |
