Pre-lookup method for internet addressing
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United States of America Patent
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N/A
Issued Date -
Nov 7, 2002
app pub date -
Sep 28, 2001
filing date -
May 2, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An Internet address pre-lookup method, suitable for an Internet packet delivery system using a routing table and hash table. First, a pre-lookup table including a plurality of pre-lookup bits in the system is provided, each pre-lookup bit corresponding to a converting address, when any Internet address corresponding to the converting address exists in the routing table, then the pre-lookup bit corresponding to the converting address is set as valid. A packet including a destination address is received, and the pre-lookup bit corresponding to the converting address the same as the valid address of the destination address is checked in the pre-lookup table. When the pre-lookup bit corresponding to the converting address the same as the valid address of the destination address is invalid, a default process is directly performed on the packet.
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