Error detection/correction and fault detection/recovery – Pulse or data error handling – Error/fault detection technique
Reexamination Certificate
2005-12-13
2005-12-13
Baker, Stephen M. (Department: 2133)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Error/fault detection technique
Reexamination Certificate
active
06976205
ABSTRACT:
A method is described that involves performing a checksum calculation on a section of data within an inbound packet before the section of data is first stored into a system memory. Another method is described that involves moving a section of data within an outbound packet from a system memory to an offload memory. Then, removing the section of data from the offload memory; and performing a checksum calculation on the section of data. An apparatus is described that includes a central processing unit that is communicatively coupled with a network processing offload unit, wherein the network processing offload unit calculates a checksum upon a section of data located within an inbound packet, and calculates a checksum upon a section of data within an outbound packet.
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Syrus Ziai, et al., “Method and Apparatus For Calculating TCP and UDP Checksume While Preserving CPU Resources”, U.S. Appl. No. 09/962,724, filed on Sep. 21, 2001, paragraphs [0002]-[0019] pp. 2-8.
A. Rijsinghani, “Computation of the Internet Checksum Via Incremental Update”, Network Working Group, Update 1141, Informational Catatory, May 1994, pp. 1-6. Printed from http://ww.ietf.org/rfc/rfc, 1624.txt.
Donohue Ryan
Jordan Paul
Pong Fong
Robson Craig
Ziai Syrus
Baker Stephen M.
Blakely , Sokoloff, Taylor & Zafman LLP
Syrus Ziai
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