ABNORMALITY IDENTIFYING DEVICE AND IDENTIFYING METHOD

To provide an abnormality identifying device and the like that allow a suspicious place of communication abnormality to be identified from communication devices and communication paths included in a communication system.SOLUTION: An abnormality identifying device includes: a first output unit for outputting first information which is information representing whether a transmission signal supplied to a communication path is suitable or not; a second output unit for outputting second information which is information representing whether a reception signal that corresponds to the transmission signal and arrived via the communication path is suitable or not; and a third output unit for outputting third information which is information representing whether a signal obtained by applying prescribed processing to the reception signal is suitable or not.SELECTED DRAWING: Figure 5 【課題】通信システムを構成する通信装置及び通信経路の中から通信異常の被疑個所の特定を可能にする異常特定装置等の提供。【解決手段】異常特定装置は、通信路に供給される送信信号の適否を表す情報である第一情報を出力する第一出力部と、前記通信路を介して到達した前記送信信号に対応した受信信号の適否を表す情報である第二情報を出力する第二出力部と、前記受信信号に所定の処理を加えることにより得られた信号の適否を表す情報である第三情報を出力する第三出力部と、を備える。【選択図】 図５