Failure analysis device, and system and method for same

US9065728B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9065728-B2
Application numberUS-201113819563-A
CountryUS
Kind codeB2
Filing dateMar 3, 2011
Priority dateMar 3, 2011
Publication dateJun 23, 2015
Grant dateJun 23, 2015

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Abstract

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Systems, methods and devices for failure analysis are provided. Using aggregation flow mining (AFM) or a similar method, an integrated mining of flow (IMF) acquires, from each router to be tested, information relating to each flow. The IMF, in relation to each of the routers, obtains distributions of statistical information such as throughput or difference for each flow; calculates, in relation to each of the distributions, a Mahalanobis distance in relation to the expected value of a reference distribution; and makes a comprehensive assessment of the distributions to perform a fault determination. When the fault determination is performed, a normal value of the distribution used for comparison is acquired from AFM and updated through feedback as needed. After the results of fault determination relating to other routers are assessed, the expected value of the standard deviation and the average value of the reference distribution used for comparison are updated.

First claim

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The invention claimed is: 1. A failure analysis device which is connected to a plurality of routers on a network, the failure analysis device comprising one or more computers, the one or more computers comprising: a receiving unit configured to receive information associated with every traffic flow, which is acquired by each of the routers as a data group; a storing unit that stores the received data group; and a failure analyzing unit configured to set the stored data group…

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What does patent US9065728B2 cover?
Systems, methods and devices for failure analysis are provided. Using aggregation flow mining (AFM) or a similar method, an integrated mining of flow (IMF) acquires, from each router to be tested, information relating to each flow. The IMF, in relation to each of the routers, obtains distributions of statistical information such as throughput or difference for each flow; calculates, in relation…
Who is the assignee on this patent?
Shimokawa Isao, Tarui Toshiaki, Miyamoto Hiroki, and 2 more
What technology area does this patent fall under?
Primary CPC classification H04L45/28. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jun 23 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).