| 摘要 |
<p>A method and system for excluding restoral routes from use in bypassing a failed component. Prior to failure of a segment, the restoration system identifies each path in the communications network. A path is a unique sequence of installations that a segment traverses. The restoration system then creates a mapping of the ports of the restoration nodes to the paths of the segments connected to each port. The restoration system then identifies for each path the set of paths that are interdependent. A pair of paths are interdependent when both paths traverse a common pair of installations. Following failure of a segment, the restoration system uses the port on which the failure was detected and uses the mapping to identify the path of the segment that failed. The restoration system then excludes each restoral route that includes a segment that has a path that is interdependent with the identified path.</p> |
