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:
Sep. 17, 2024

Filed:

Aug. 30, 2022
Applicant:

Netscout Systems Texas, Llc, Plano, TX (US);

Inventors:

Brian St. Pierre, Acworth, NH (US);

Timothy David Dodd, Auburn, GA (US);

Steinthor Bjarnason, Fjerdingby, NO;

Assignee:

NETSCOUT SYSTEMS TEXAS, LLC, Westford, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01); G06F 16/903 (2019.01);
U.S. Cl.
CPC ...
H04L 63/0236 (2013.01); G06F 16/90335 (2019.01);
Abstract

A method of configuring a filter to perform pattern matching against input data is provided. The method includes receiving one or more rules, each rule including one or more field specifiers, each field specifier including a value specifier that specifies a value to be matched and a location specifier that specifies a location in the input data. For each rule of the one or more rules an empty buffer is initialized. For each field specifier the value specified by the field specifier is appended to the buffer, and the buffer contents are inserted into contents of a probabilistic data structure representing all of the field specifiers of the rule. The probabilistic data structure is configured to receive a query that includes query buffer contents determined from the input data and respond with a match status of probably present based on a predetermined probability, or definitely not present.


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