MULTICAST TRANSFER PATH COMPUTING DEVICE

摘要

PROBLEM TO BE SOLVED: To enable active/standby switching in a middle node, and to shorten switching time.

SOLUTION: A main transfer path which connects a given starting point and a plurality of end points, respectively, is calculated and reserve transfer paths are calculated to all links on the main transfer path. At this time, traffic states are measured and the main transfer path is calculated by every link and every traveling direction when data flow to the link and reserve transfer paths are calculated and obtained by every link on the calculated main transfer path.

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