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:
Jan. 14, 2020

Filed:

Aug. 17, 2015
Applicant:

Nec Corporation, Tokyo, JP;

Inventor:

Kiyotaka Imai, Tokyo, JP;

Assignee:

NEC CORPORATION, Minato-ku, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/939 (2013.01); H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
H04L 49/555 (2013.01);
Abstract

A communication device has a configuration including a data analysis unit, a communication monitoring unit, and a management information transmission unit. The data analysis unitextracts predetermined information from each of a plurality of packets input to the own device, analyzes the predetermined information of the plurality of packets, and generates information relating to a characteristic of each flow of the packets, as flow management information. The communication monitoring unitdetects that an abnormality occurs in communication of packets in a communication network to which the own device is connected. When the abnormality detection unitdetects the abnormality, the management information transmission unittransmits predetermined information already extracted from a predetermined packet input before the detection of the abnormality, as information for generating the flow management information expected to be generated by the own device, to a standby-system device.


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