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.
Patent No.:
Date of Patent:
Aug. 14, 2018
Filed:
Mar. 09, 2015
Fortinet, Inc., Sunnyvale, CA (US);
Zhi Guo, San Jose, CA (US);
John A. Cortes, Santa Clara, CA (US);
Fortinet, Inc., Sunnyvale, CA (US);
Abstract
Systems and methods for packet classification hardware acceleration are provided. According to one embodiment, a packet classification hardware accelerator system includes multiple packet classification hardware units, a memory and a cache subsystem. The packet classification hardware units are each capable of operation in parallel on a corresponding decision tree of multiple decision trees that have been derived from respective subsets of a common ruleset defining packet classification rules based on header fields of packets. The memory has stored therein non-leaf nodes, leaf nodes and rules associated with the decision trees. The cache subsystem is coupled in communication with packet classification hardware units and the memory and has stored therein (i) a cached portion of the non-leaf nodes distributed among multiple non-leaf node caches, (ii) a cached set of the leaf nodes in a leaf node cache and (iii) a cached set of the rules.