Optimization of routing forwarding database in a network processor
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United States of America Patent
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Apr 27, 2010
Grant Date -
Mar 16, 2006
app pub date -
Sep 14, 2004
filing date -
Sep 14, 2004
priority date (Note) -
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Abstract
A routing device and associated method for allocating the nodes of a multi-way trie of a forwarding routing table between two or more memory devices is disclosed. In the preferred embodiment, the routing device comprises a routing table for storing a plurality of routes in a multiway trie in a first memory for caching a first set of the plurality of trie nodes and a second memory for caching a second set of the plurality of trie nodes; and a route manager adapted to relocate one or more nodes of the second set from the second memory to the first memory such that the a utilization count for each of the nodes of the first memory is higher than each of the nodes of the second memory.
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