Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2002-03-05
2008-09-09
Chan, Wing F. (Department: 2619)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S392000
Reexamination Certificate
active
07423975
ABSTRACT:
A method, apparatus and computer program product is provided for classifying a target data packet entering a network interface. For each of a plurality of received classification parameters, at least one program module is generated. Each program module tests a pre-defined field(s) of the target data packet for adherence to the classification parameter(s) with which the program module is associated. A pre-classification header is generated wherein an indication is made of where one or more pre-defined fields are located in the data packet if the field is present. Maintaining locations of the pre-defined fields of the target data packet in the pre-classification header prevents having to recalculate the addresses of the pre-defined fields of the target data packet. Eliminating the need for re-calculating the addresses of the pre-defined field(s) can allow the classification process of the present invention to obtain an optimal execution speed.
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Burrell Paul
Danzig Joel
Johnson Thomas L
Broadcom Corporation
Sefcheck Gregory B
Sterne Kessler Goldstein & Fox PLLC
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