COMMUNICATION NETWORK FAILURE DETECTION SYSTEM, AND COMMUNICATION NETWORK FAILURE DETECTION METHOD AND FAILURE DETECTION PROGRAM
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Accused Products
Abstract
The system for detecting a failure on a communication network according to an objective basis by analyzing an alarm log output by a management server of the communication network and evaluating a degree of abnormality of the communication network tracing back to a more significant factor causing the alarm, calculates an occurrence intensity of the more significant factor 500 causing an alarm based on the recording contents of the alarm, and detects a failure derived from the more significant factor of the communication network based on the calculated intensity of occurrence of said more significant factor 500.
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Citations
63 Claims
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1-33. -33. (canceled)
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34. In a communication network for which contents of an alarm issued at the time of a failure of communication are recorded, a communication network failure detection system, comprising:
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an occurrence intensity calculating unit for a more significant factor for calculating an occurrence intensity of said more significant factor causing an alarm by analyzing the recording contents of the alarm; an occurrence intensity probability distribution calculating unit for calculating a probability distribution of an occurrence intensity of said more significant factor in said communication network at a normal state; a degree of abnormality calculating unit for calculating, with respect to a calculated occurrence intensity of said more significant factor, a degree of probability deviation from an occurrence intensity probability distribution of said more significant factor at said normal state as a degree of abnormality; and a failure detecting unit for detecting a failure derived from said more significant factor in said communication network by comparing said degree of abnormality and a threshold value applied in advance. - View Dependent Claims (35, 36, 37, 38)
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39. A communication network failure detection system, comprising:
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an occurrence intensity calculating unit for a more significant factor for calculating an occurrence intensity of a more significant factor causing an alarm by analyzing the recording contents of said alarm; an occurrence intensity probability distribution calculating unit for calculating a probability distribution of an occurrence intensity of said more significant factor in a communication network at a normal state; a degree of abnormality calculating unit for calculating, with respect to a calculated occurrence intensity of said more significant factor, a degree of probability deviation from an occurrence intensity probability distribution of said more significant factor at the normal state as a degree of abnormality; and a failure detecting unit for detecting a failure of the communication network by comparing said degree of abnormality and a threshold value applied in advance, wherein said occurrence intensity calculating unit for the more significant factor includes a time variation parameter extracting unit for extracting a parameter indicative of a time variation in an alarm occurrence frequency from the recording contents of said alarm, and a space variation parameter extracting unit for extracting a parameter indicative of a space variation in an alarm occurrence frequency to consider values of said parameter indicative of a time variation and said parameter indicative of a space variation as an occurrence intensity of said more significant factor. - View Dependent Claims (40, 41, 42, 43)
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44. In a communication network for which contents of an alarm issued at the time of a failure of communication are recorded, a communication network failure detecting method, comprising the steps of:
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a occurrence intensity calculating step for a more significant factor of calculating an occurrence intensity of said more significant factor causing an alarm by analyzing the recording contents of the alarm; a occurrence intensity probability distribution calculating step of calculating a probability distribution of an occurrence intensity of said more significant factor in said communication network at a normal state; a degree of abnormality calculating step of calculating, with respect to a calculated occurrence intensity of said more significant factor, a degree of probability deviation from an occurrence intensity probability distribution of said more significant factor at said normal state as a degree of abnormality; and a failure detecting step of detecting a failure derived from said more significant factor in said communication network by comparing said degree of abnormality and a threshold value applied in advance. - View Dependent Claims (45, 46, 47, 48)
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49. A communication network failure detecting method, comprising the steps of:
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a occurrence intensity calculating step for a more significant factor of calculating an occurrence intensity of said more significant factor causing an alarm by analyzing the recording contents of said alarm; a occurrence intensity probability distribution calculating step of calculating a probability distribution of an occurrence intensity of said more significant factor in a communication network at a normal state; a degree of abnormality calculating step of calculating, with respect to a calculated occurrence intensity of said more significant factor, a degree of probability deviation from an occurrence intensity probability distribution of said more significant factor at the normal state as a degree of abnormality; and a failure detecting step of detecting a failure of the communication network by comparing said degree of abnormality and a threshold value applied in advance, wherein said occurrence intensity calculating step for the more significant factor includes a time variation parameter extracting step of extracting a parameter indicative of a time variation in an alarm occurrence frequency from the recording contents of said alarm and the space variation parameter extracting step of extracting a parameter indicative of a space variation in an alarm occurrence frequency, and considers values of said parameter indicative of a time variation and said parameter indicative of a space variation as an occurrence intensity of said more significant factor. - View Dependent Claims (50, 51, 52, 53)
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54. A failure detection program operable in a communication device on a communication network for which contents of an alarm issued at the time of a failure of communication are recorded, which causes said communication device to execute the functions of:
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a occurrence intensity calculating function for a more significant factor of calculating an occurrence intensity of said more significant factor causing an alarm by analyzing the recording contents of the alarm; a occurrence intensity probability distribution calculating function of calculating a probability distribution of an occurrence intensity of said more significant factor in said communication network at a normal state; a degree of abnormality calculating function of calculating, with respect to a calculated occurrence intensity of said more significant factor, a degree of probability deviation from an occurrence intensity probability distribution of said more significant factor at said normal state as a degree of abnormality; and a failure detecting function of detecting a failure derived from said more significant factor in said communication network by comparing said degree of abnormality and a threshold value applied in advance. - View Dependent Claims (55, 56, 57, 58)
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59. A failure detection program, which causes a communication device on a communication network to execute the functions of:
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a occurrence intensity calculating function for a more significant factor of calculating an occurrence intensity of a more significant factor causing an alarm by analyzing the recording contents of the alarm; a occurrence intensity probability distribution calculating function of calculating a probability distribution of an occurrence intensity of said more significant factor in the communication network at a normal state; a degree of abnormality calculating function of calculating, with respect to a calculated occurrence intensity of said more significant factor, a degree of probability deviation from an occurrence intensity probability distribution of said more significant factor at the normal state as a degree of abnormality; and a failure detecting function of detecting a failure of the communication network by comparing said degree of abnormality and a threshold value applied in advance, wherein said occurrence intensity calculating function for said more significant factor includes the time variation parameter extracting function of extracting a parameter indicative of a time variation in an alarm occurrence frequency from the recording contents of said alarm, and the space variation parameter extracting function of extracting a parameter indicative of a space variation in an alarm occurrence frequency, and considers values of said parameter indicative of a time variation and said parameter indicative of a space variation as an occurrence intensity of said more significant factor. - View Dependent Claims (60, 61, 62, 63)
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Specification