APPARATUS AND METHOD OF CLASSIFYING PACKETS

  • US 20090135826A1
  • Filed: 09/08/2008
  • Published: 05/28/2009
  • Est. Priority Date: 11/27/2007
  • Status: Active Grant
First Claim
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1. An apparatus for classifying packets, comprising:

  • a first unit that analyzes input data packets, extracts pluralities of specific fields from the input data packets using an analyzed result, and outputs the pluralities of specific fields;

    pluralities of second units that compare data of a first portion of the pluralities of extracted specific fields with data in a table, determine whether items that satisfy a predetermined condition exist in the table, and output hit signals and pointers indicating positions of the items that satisfy the predetermined condition when the items that satisfy the predetermined condition exist in the table; and

    a third unit that compares key data including a second portion of the pluralities of extracted specific fields and the pointers input from the pluralities of second units with rule data in a rule table, determines whether items that satisfy a predetermined condition exist in the rule table, and outputs classes corresponding to the items when the items that satisfy the predetermined condition exist in the rule table.

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