ROUTE LOOP DETECTION DEVICE, ROUTE LOOP DETECTION METHOD AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To detect a loop-like communication route generated inside a specific IP network regardless of the capture of a packet.

SOLUTION: A route loop detecting device 1 for detecting the loop-like communication route generated inside the specific IP network configured by connecting a plurality of routers includes a route loop detection part 19 for determining the loop-like communication route on the basis of the information of a cost increase link or a deletion link and the information of the shortest path before and after the state change of the IP network.

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