Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
February 27, 2007
Patent Application Number
09538132
Date Filed
March 29, 2000
Patent Primary Examiner
Patent abstract
A packet classification language (PCL) is provided to specify data packets in a routing device. The PCL uses regular expressions to match incoming data packets. Class identifiers associated with each regular expression identifies the class to which each recognized packet belongs for subsequent processing. A PCL compiler produces a DFA which recognizes the data packets as defined by the regular expressions. A hardware implemented DFA is used to scan the input stream which constitutes the data packets.
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