System for transmitting and receiving data within a reliable communications protocol by concurrently processing portions of the protocol suite
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United States of America Patent
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Feb 5, 2002
Issued Date -
N/A
app pub date -
Aug 21, 2000
filing date -
Oct 30, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method for sending and receiving data with a reliable communication protocol. The system includes a computer at a node having a backplane, a CPU board plugged into the backplane, software instructions for the CPU, and a special network board plugged into the backplane. The CPU board, software, and network card act to implement the TCP/IP protocol suite. The network card or board includes an interface to receive data packets from the physical layer, and circuitry to verify the TCP checksum before de-encapsulation and routing of the TCP segment by the network layer software. It also includes circuitry to automatically prepare the acknowledgement signal to be sent by the receiving computer to the sending computer. It additionally includes circuitry to calculate the error detecting code on outgoing signals from the sending computer to the receiving computer.
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