The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 11, 2020

Filed:

Oct. 14, 2015
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Takaya Ide, Tokyo, JP;

Hitoshi Yabusaki, Tokyo, JP;

Junji Kinoshita, Tokyo, JP;

Osamu Takada, Tokyo, JP;

Assignee:

HITACHI LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/24 (2006.01); H04L 12/26 (2006.01); H04L 12/54 (2013.01); G06F 9/455 (2018.01);
U.S. Cl.
CPC ...
H04L 41/0654 (2013.01); G06F 9/45558 (2013.01); H04L 12/56 (2013.01); H04L 41/147 (2013.01); H04L 43/026 (2013.01); H04L 43/0823 (2013.01); G06F 2009/45591 (2013.01); G06F 2009/45595 (2013.01); H04L 41/0631 (2013.01); H04L 43/062 (2013.01);
Abstract

A management apparatus executes: receiving from a given communication apparatus where a fault has occurred, fault information; selecting a given flow that passes through the given communication apparatus from among a group of flows on the basis of the identification information of the given communication apparatus included in the fault information; determining whether the communication pattern of the given flow is similar to the given time series data indicating the change over time of the traffic within a period from a set period prior to the fault occurrence date and time to the fault occurrence date and time for the given flow; calculating the certainty that the given flow has been transmitted on the fault occurrence date and time on the basis of a frequency of appearance of the traffic of the communication pattern determined to be similar; and outputting calculation results.


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