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. 23, 2009
Filed:
Apr. 03, 2006
Applicant:
Ram Krishnan, Sunnyvale, CA (US);
Inventor:
Ram Krishnan, Sunnyvale, CA (US);
Assignee:
Extreme Networks, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G11C 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a packet switching device or system, such as a router, switch, combination router/switch, or component thereof, a method of and system for performing a table lookup operation using a lookup table index that exceeds a CAM key size is provided. Multiple CAM accesses are performed, each using a CAM key derived from a subset of lookup table index, resulting in one or more CAM entries. One or more matching table entries are derived from the one or more CAM entries resulting from the multiple CAM accesses.