Methods of altering dynamic decision trees
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United States of America Patent
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Nov 20, 2001
Grant Date -
N/A
app pub date -
Apr 30, 1999
filing date -
May 1, 1998
priority date (Note) -
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Abstract
A data packet switch includes a decision tree for classifying data packets, which can be dynamically modified. To conserve memory resources nodes which are found during modification to have matching effects are combined. If only a subset of paths to a node are relevant to a modification, the node is split. Prior to implementation of the modifications, temporary nodes are inserted before modified nodes to preserve existing paths. These temporary nodes are controlled by a single memory value which can be changed to effect all the modifications to the decision tree simultaneously.
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