CAM-based search engines that support pipelined...

Details CAM-based search engines that support pipelined... CAM-based search engines that support pipelined...

2006-10-10

2006-10-10

Peugh, Brian R. (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C365S049130, C706S050000

Reexamination Certificate

active

07120731

ABSTRACT:
CAM-based search engines may be configured to support multiple databases within a CAM core. These databases may represent tables for different applications, which can be searched sequentially in response to a single indirect instruction that is loaded during a control cycle. The databases to be searched may be identified by a multi-database search instruction that is loaded during a single data cycle, which may overlap with the control cycle. In some cases, the databases may be searched using variations of a primary search key, so that it is unnecessary to repeatedly load the entire search key across a network interface for each search operation within a respective database. Instead, shorter replacement key segments may be loaded for each of a plurality of the search operations and these replacement key segments may be combined with one or more segments of the primary search key in the CAM core to define a desired search key for a respective search operation.

REFERENCES:
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CommsDesign, LA-1: Examining the Look-Aside Processor Interface, http://www.commsdesign.com/story/OEG20030520S0008, May 20, 2003, 6 pages.

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