Programmable packet parsing processor

Details Programmable packet parsing processor Programmable packet parsing processor

2004-08-25

2009-11-24

Moe, Aung S (Department: 2416)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S238000, C370S254000, C370S389000

Reexamination Certificate

active

07623468

ABSTRACT:
The present invention provides a packet processing device and method. A parsing processor provides instruction-driven content inspection of network packets at 10-Gbps and above with a parsing engine that executes parsing instructions. A flow state unit maintains statefulness of packet flows to allow content inspection across several related network packets. A state-graph unit traces state-graph nodes to keyword indications and/or parsing instructions. The parsing instructions can be derived from a high-level application to emulate user-friendly parsing logic. The parsing processor sends parsed packets to a network processor unit for further processing.

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PCT International Search Report and Written Opinion, PCT/U505/13191, Dec. 18, 2006, 10 pages.

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