Method and apparatus for caching protocol processing data

Details Method and apparatus for caching protocol processing data Method and apparatus for caching protocol processing data

2007-06-26

2007-06-26

Cardone, Jason (Department: 2145)

Electrical computers and digital processing systems: multicomput

Computer-to-computer protocol implementing

C709S236000

Reexamination Certificate

active

10093308

ABSTRACT:
A method and apparatus are provided for caching data for protocol processing. A protocol processing cache stores data needed for the generation of new headers, from both receive and transmit flows. Some data may be stored in the cache only after being processed (e.g., updated, calculated) by a protocol processor. Other data may bypass the protocol processor and be stored in the cache without being handled by the protocol processor. An entry in the cache includes data needed for header generation, a tag identifying an index into a control block memory of the TCP connection to which the data corresponds. An entry may also include one or more control indicators to indicate whether a transmit flow has been acknowledged, whether a receive flow has been observed, and whether the transmit flow has been updated with control data from the receive flow. The apparatus is protocol processor independent.

REFERENCES:
patent: 5761417 (1998-06-01), Henley et al.
patent: 6807581 (2004-10-01), Starr et al.
James Kurose, Computer Networking, A Top-Down Approach Featuring the Internet, Addisson wesley Longman, 2001 p. 197-205.
Kurose, James F. and Ross, Keith W. “Computer Networking: A Top-Down Approach Featuring the Internet,” 2001, Addison Wesley, pp. 210-211.
Information Sciences Institute, “Transmission Control Protocol; Darpa Internet Program Progotocol Specification,” Sep. 1981, University of Southern California, pp. 1-85.

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