Block acknowledgement: redesigning the window protocol

  • Authors:
  • G. M. Brown;M. G. Gouda;R. E. Miller

  • Affiliations:
  • SchooI of Electrical Engineering, Cornell University;Department of Computer Sciences, The University of Texas at Austin;Department of Computer Science, University of Maryland

  • Venue:
  • SIGCOMM '89 Symposium proceedings on Communications architectures & protocols
  • Year:
  • 1989

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Abstract

We describe a new version of the window protocol where message sequence numbers are taken from a finite domain and where both message disorder and loss can be tolerated. Most existing window protocols achieve only one of these two goals. Our protocol is based on a new method of acknowledgement, called block acknowledgement, where each acknowledgement message has two numbers m and n to acknowledge the reception of all data messages with sequence numbers ranging from m to n. Using this method of acknowledgement, the proposed protocol achieves the two goals while maintaining the same data transmission capability of the traditional window protocol.