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:
Nov. 07, 2017

Filed:

Nov. 24, 2014
Applicant:

Huawei Technologies Co., Ltd., Shenzhen, Guangdong, CN;

Inventors:

Zhi Guo, Shenzhen, CN;

Fuqiang Wu, Shenzhen, CN;

Jia Zeng, Shenzhen, CN;

Deepak Mansharamani, Santa Clara, CA (US);

John Cortes, Shenzhen, CN;

Lingyan Sun, Shenzhen, CN;

Dan Tian, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/18 (2006.01); G06N 5/02 (2006.01); H04L 12/26 (2006.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
G06N 5/027 (2013.01); H04L 43/028 (2013.01); H04L 69/12 (2013.01); G06F 2221/2101 (2013.01);
Abstract

The present invention discloses a rule matching method including: receiving a packet; detecting feature information in content of the packet, and determining whether the detected feature information in the packet conforms to a classification characteristic of one rule group among a plurality of preset rule groups; if yes, determining a state machine corresponding to the one rule group as a first state machine; and determining whether the first state machine is stored in an on-chip memory, and if yes, using the first state machine to match the packet to obtain a matching result; and if no, when an off-chip memory stores the first state machine, loading the first state machine from the off-chip memory into the on-chip memory, and using the first state machine to match the packet to obtain a matching result. Embodiments of the present invention enable a product to achieve better performance.


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Guo, Zhi. (2017). Rule matching method and apparatus for deep packet inspection (U.S. Patent No. 9811777). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9811777

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