COMMUNICATION NETWORK FAILURE CAUSE ANALYSIS SYSTEM, FAILURE CAUSE ANALYSIS METHOD, AND FAILURE CAUSE ANALYSIS PROGRAM

摘要

A communication network failure cause analysis system estimates a cause of a failure in a communication network according to a recorded content of an internal process of a communication device.The system includes: feature extraction means which extracts a statistic feature of the recorded content upon occurrence of a failure; and failure cause estimation means for estimating a failure cause according to similarity between the statistic feature of the recorded content acquired upon occurrence of a past failure whose cause is already known and the statistic feature of the recorded content acquired upon occurrence of the current failure. The system acquires correspondence between the failure features and failure causes from the past failure events regardless of the number of events for the communication network failure detected from a process log in the communication device. The range of feature irregularities is quantitatively involved so as to estimate a cause which has caused the failure.