Technique for acknowledging packets

Details Technique for acknowledging packets Technique for acknowledging packets

1992-05-20

1993-09-14

Baker, Stephen M.

Excavating

370 60, H04L 116

Patent

active

052456161

ABSTRACT:
A plurality of message packets are individually acknowledged in a communications network. The acknowledgement includes multiple types of status information including ACK, NAK and BUSY. Each message packet is assigned a sequence number. Acknowledgements are sent in response to receiving a message packet and include status information for the last message packet received along with status information for the seven message packets previously received. If after a timeout period expires and no message packets have been received, a status inquiry message is transmitted.

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"Deadlock Avoidance In Store and Forward Networks--I: Store and Forward Deadlock", Philip M. Merlin and Paul J. Schweitzer, IEEE Transactions on Communications, vol. Com-28, No. 3, Mar. 1980, pp. 345-353.
Tanenbaum, A., Computer Networks, 2nd ed., Prentice-Hall, 1988, pp. 212-239.
Brodd, W., "HDLC ADCCP, and SDLC: What's the Difference?", Data Communications, Aug. 1983.

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