Method and apparatus for high-speed parsing of network messages
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United States of America Patent
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Jul 1, 2008
Grant Date -
Jul 28, 2005
app pub date -
Mar 21, 2005
filing date -
Mar 28, 2000
priority date (Note) -
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Abstract
A method for searching network messages for pre-defined regular expressions is disclosed. A plurality of pre-defined regular expressions are stored in a content-addressable memory (CAM). A network message or selected portion thereof is inputted to the CAM for comparison with all of the regular expressions stored therein, the comparison with all CAM entries being done at the same time. An output is returned from the CAM. In response to the output from the CAM, identifying an action to be applied to the given network message or portion thereof that corresponds to a CAM entry matching the inputted network message or selected portion thereof.
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