Network packet processing using multi-stage classification

Details Network packet processing using multi-stage classification Network packet processing using multi-stage classification

2007-02-28

2010-10-12

Shah, Chirag G (Department: 2477)

Multiplex communications

Pathfinding or routing

Through a circuit switch

C370S392000, C370S395310

Reexamination Certificate

active

07813337

ABSTRACT:
Methods and systems for processing packets in data network using multistage classification are disclosed. An example method for processing packets includes receiving a data packet at a first processing stage and examining the packet at the first processing stage to determine a first attribute of the packet. Based on the first attribute, a first classification is assigned to the packet. In the example method, the packet and the first classification are communicated from the first processing stage to a second processing stage and the packet is examined at the second processing stage to determine a second attribute of the packet. Based on the second attribute, a second classification is assigned to the packet. The example method further includes processing the packet based on the first classification and the second classification.

REFERENCES:
patent: 6529508 (2003-03-01), Li et al.
patent: 7002965 (2006-02-01), Cheriton
patent: 7095742 (2006-08-01), Kaganoi et al.
patent: 7512122 (2009-03-01), Olakangil et al.
patent: 2003/0161303 (2003-08-01), Mehrvar et al.
patent: 2005/0083935 (2005-04-01), Kounavis et al.
patent: 2007/0280245 (2007-12-01), Rosberg

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