Apparatus and method for performing high-speed IP route lookup and managing routing/forwarding tables
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United States of America Patent
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Apr 18, 2006
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app pub date -
Dec 20, 2001
filing date -
Dec 22, 2000
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Abstract
A method for constructing routing/forwarding tables for an IP address lookup using a skip list. The method comprises dividing a prefix length range of an IP address in a preset method; creating a header node having a maximum level based on a number of clusters divided into the prefix length range, the header node pointing every node in the skip list; and creating subnodes by the number of the divided clusters, the subnodes each having the divided prefix length range as a key.
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