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:
Jun. 12, 2012
Filed:
May. 05, 2010
Applicants:
Jeff Carmichael, Poway, CA (US);
Gary Smerdon, Saratoga, CA (US);
Inventors:
Jeff Carmichael, Poway, CA (US);
Gary Smerdon, Saratoga, CA (US);
Assignee:
LSI Corporation, Milpitas, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2006.01); G06F 11/08 (2006.01); G08C 15/00 (2006.01); H04J 1/16 (2006.01); H04J 3/14 (2006.01); H04L 1/00 (2006.01); H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A network node, such as an Ethernet switch, is configured to monitor packet traffic using regular expressions corresponding to Access Control List (ACL) rules. In one embodiment, the regular expressions are expressed in the form of a state machine. In one embodiment, as packets are passed through the network node, an access control module accesses the packets and traverses the state machine according to certain qualification content of the packets in order to determine if respective packets should be permitted to pass through the network switch.