Multilevel parser for conditional flow detection in a network device
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United States of America Patent
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Sep 25, 2007
Grant Date -
Sep 18, 2003
app pub date -
Sep 5, 2002
filing date -
Mar 15, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A process of filtering packet data in a network device is disclosed. A descriptor table is accessed to obtain a first descriptor and a first field is extracted from a packet based on the first descriptor. An action table is accessed based on a value of the first field of the packet. Then an action from the action table is executed when a valid bit from the action table for the action is set or an action from a miss action table is executed when a valid bit from the action table for the action is not set.
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