High-throughput state management for TCP

Details High-throughput state management for TCP High-throughput state management for TCP

2008-01-29

2008-01-29

Pezzlo, John (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S389000, C370S428000, C709S230000

Reexamination Certificate

active

10685299

ABSTRACT:
A state decision subsystem (SDS) including an inload module, a simple programmable entity (SPE), at least one SPE memory, an unload module, and a coherency module. The inload module reads state information from a memory subsystem—the state information corresponding to TCP packets that are to be processed. In addition, the inload module writes contexts to the SPE memory. Each context includes both a TCP packet and its corresponding state information. The SPE reads each context from the SPE memory, processes the context, and writes the processed context to the SPE memory. The processed context includes both a processed TCP packet and its corresponding processed state information. Furthermore, the unload memory reads the processed context and writes the processed state information to the memory subsystem. Finally, the coherency module compares contents of the inload module and the unload module, and if the contents of each correspond to the same TCP connection, the coherency module replaces the state related content of the inload module with the state related content of the unload module.

REFERENCES:
patent: 2004/0111523 (2004-06-01), Hall et al.
patent: 2005/0160139 (2005-07-01), Boucher et al.

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