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:
Apr. 07, 2020

Filed:

Dec. 12, 2017
Applicant:

Microsemi Frequency and Time Corporation, Aliso Viejo, CA (US);

Inventors:

Anne Gerardine O'Connell, Rochestown, IE;

Yves Cognet, Redwood Shores, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 12/815 (2013.01); H04L 29/12 (2006.01); H04L 12/851 (2013.01);
U.S. Cl.
CPC ...
H04L 63/1458 (2013.01); H04L 47/225 (2013.01); H04L 61/6063 (2013.01); H04L 63/1425 (2013.01); H04L 69/22 (2013.01); H04L 47/2441 (2013.01); H04L 2463/141 (2013.01);
Abstract

A method and associated system for mitigating a Distributed Denial of Service (DDoS) attack on a target device including, receiving a plurality of data packets at a mitigation device, counting a number of occurrences of each destination address signature within each of a plurality of consecutive data packet windows, classifying each data packet window of the plurality of consecutive data packet windows as a potential attack window if the number of occurrences of any one destination address signature within the data packet window exceeds a destination address signature threshold value. The method further includes, determining a total number of potential attack windows within a sliding time window and limiting the transmission of the plurality of data packets from the mitigation device if a total number of potential attack windows within the sliding time window exceeds a potential attack window threshold value.


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