An O(log n) Dynamic Router-Table Design

  • Authors:
  • Sartaj Sahni;Kun Suk Kim

  • Affiliations:
  • -;-

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 2004

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Abstract

Abstract--Internet (IP) packet forwarding is typically done by finding the longest prefix in a router table that matches the packet's destination address. For W{\hbox{-}}{\rm bit} destination addresses, the use of binary tries enables us to determine the longest matching prefix in O(W) time, independent of the number n of prefixes in the router table. New prefixes may be inserted and old ones deleted in O(W) time also. Since n