Performance improvements for ISO transport

ABSTRACT

The NBS Protocol Performance Laboratory is developing enhanced protocol mechanisms for OSI class 4 transport that will improve the throughput efficiency achieved on a satellite channel. A selective acknowledgement mechanism has been shown to improve throughput efficiency by as much as 34%. Several alternative expedited data mechanisms have demonstrated throughput efficiency improvements as great as 38%. Most of the protocol mechanism enhancements considered require only minor changes to the international standard OSI transport protocol.

REFERENCES

• 1: "Specification of a Transport Protocol for Computer Communications, Volume 3' Class 4 Protocol," National Bureau of Standards, February 1983.
• 2: "Specification of a Transport Protocol for Computer Communications, Volume 4' Formal Service Specification," National Bureau of Standards, January 1983.
• 3: International Organization for Standardization, "Transport Protocol Specification," ISO/TC 97/SC 16, International Standard ISO/IS 8073 rev., June 1984.
• 4: International Organization for Standardization, "Transport Service Definition," ISO/ TC 97/SC 16, International Standard ISO/IS 8072 rev., June 1984.
• 5: Mills, Kevin L., Marnie Wheatley, and Richard Colella, "Simulation of an International Standard Transport Protocol," National Bureau of Standards (pending publication).
• 6: Colella, Richard, Marnie Wheatley, and Kevin Mills, "COMSAT/NBS Experiment Plan for Transport Protocol ," National Bureau of Standards (pending publication)

INDEX TERMS

Primary Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.2 Network Protocols
          Subjects: Protocol architecture (OSI model)

Additional Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS

General Terms:
Design, Experimentation, Measurement, Performance