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:
Mar. 20, 2012
Filed:
Aug. 20, 2010
Ming Zhang, San Jose, CA (US);
Ram Krisnan, Sunnyvale, CA (US);
Jonathan J. Chang, Cupertino, CA (US);
Flavio Giovanni Bonomi, Palo Alto, CA (US);
Ming Zhang, San Jose, CA (US);
Ram Krisnan, Sunnyvale, CA (US);
Jonathan J. Chang, Cupertino, CA (US);
Flavio Giovanni Bonomi, Palo Alto, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method for classifying a data packet containing a header is provided. The method may comprise parsing the header of a data packet into header elements. Rules in secondary lookup tables generated from a primary lookup table may be accessed. The respective header elements of the data packet may be compared to the respective fields of each of the secondary lookup tables, and rule results for each of the secondary lookup tables in a combinable format may be generated. In another embodiment, a method for generating secondary lookup tables from a primary lookup table is provided. The method may comprise accessing a primary lookup table defining packet classification rules and generating multiple secondary lookup tables from the primary lookup table. For each secondary lookup table, a selection of classification rules and a selection of fields of the multiple fields based on a rule set identifying predefined entries may be extracted.