Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2008-12-23
2011-11-22
Pham, Chi (Department: 2471)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S232000, C370S241000
Reexamination Certificate
active
08064359
ABSTRACT:
Disclosed herein are systems, computer-implemented methods, and computer-readable media for sampling network traffic. The method includes receiving a desired quantity of flow record to sample, receiving a plurality of network flow record each summarizing a network flow of packets, calculating a hash for each flow record of based on one or more invariant part of a respective flow, generating a quasi-random number from the calculated hash for each respective flow record, generating a priority from the calculated hash for each respective flow record, and sampling exactly the desired quantity of flow records, selecting flow records having a highest priority first. In one aspect, the method further partitions the plurality of flow records into groups based on flow origin and destination, generates an individual priority for each partitioned group, and separately samples exactly the desired quantity of flow records from each partitioned group, selecting flows having a highest individual priority first.
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Breslau Lee M.
Duffield Nicholas
Ee Cheng
Gerber Alexandre
Lund Carsten
AT&T Intellectual Property I L.P.
Huang Weibin
Pham Chi
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