Apparatus and method for caching counter values in network packet traffic sampling
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United States of America Patent
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May 22, 2007
Grant Date -
Sep 18, 2003
app pub date -
Mar 12, 2002
filing date -
Mar 12, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of caching counter values in network packet traffic sampling, includes: generating a pre-sample strobe; loading the pre-sample strobe into a counter cache; waiting for the next strobe; and generating a sample pulse when the next strobe arrives. An apparatus for counting packet values and for sampling the values, includes: a packet sampling processor including a counter cache, the packet sampling processor responsive to a pre-sample strobe so that the pre-sample strobe updates the counter cache, where a sample pulse is generated when the next strobe arrives.
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