Packet capture deep packet inspection sensor
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United States of America Patent
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Oct 6, 2015
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N/A
app pub date -
May 16, 2013
filing date -
May 16, 2012
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Abstract
Systems and processes for filtering network traffic. In one example, an event based flow record aging process may be used to identify flow records to be removed from memory to provide space for newer flow records. In this example, a new incoming network packet may trigger a determination of the flow record to be removed from memory based on the hardware time stamps of the flow records stored in memory. Determining aging flow records in this way may advantageously reduce the amount of computer resources required to manage flow record aging when compared to traditional techniques that require keeping a timer and periodically performing a cleanup process to check the freshness date of each flow record.
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