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:
Nov. 24, 2009
Filed:
Aug. 25, 2004
Rina Panigrahy, Sunnyvale, CA (US);
Jackie Liu, Sunnyvale, CA (US);
Daniel Yu-kwong NG, San Jose, CA (US);
Sanjay Jain, Santa Clara, CA (US);
Nagaraj A. Bagepalli, San Jose, CA (US);
Abhijit Patra, San Jose, CA (US);
Rina Panigrahy, Sunnyvale, CA (US);
Jackie Liu, Sunnyvale, CA (US);
Daniel Yu-Kwong Ng, San Jose, CA (US);
Sanjay Jain, Santa Clara, CA (US);
Nagaraj A. Bagepalli, San Jose, CA (US);
Abhijit Patra, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
The present invention provides a packet processing device and method. A parsing processor provides instruction-driven content inspection of network packets at 10-Gbps and above with a parsing engine that executes parsing instructions. A flow state unit maintains statefulness of packet flows to allow content inspection across several related network packets. A state-graph unit traces state-graph nodes to keyword indications and/or parsing instructions. The parsing instructions can be derived from a high-level application to emulate user-friendly parsing logic. The parsing processor sends parsed packets to a network processor unit for further processing.