Integrated search engine devices having pipelined node maintenance sub-engines therein that support database flush operations
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United States of America Patent
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Jul 26, 2011
Grant Date -
N/A
app pub date -
Dec 21, 2007
filing date -
Nov 27, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An integrated search engine device contains a pipelined arrangement of a plurality of search and tree maintenance sub-engines therein. This pipelined arrangement of sub-engines includes a hierarchical memory, which is configured to store a plurality of databases of search prefixes. These databases are arranged as a corresponding plurality of multi-way trees that span multiple levels of the hierarchical memory. The plurality of search and tree maintenance sub-engines are configured to respond to a database flush command by redesignating active nodes of a selected database within the hierarchical memory as free nodes using downstream and upstream communications between the plurality of search and tree maintenance sub-engines.
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