A cable-bus protocol architecture

  • Authors:
  • David C. Wood;Steven F. Holmgren;Anita P. Skelton

  • Affiliations:
  • -;-;-

  • Venue:
  • SIGCOMM '79 Proceedings of the sixth symposium on Data communications
  • Year:
  • 1979

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Abstract

The benefits of general-purpose local networks are discussed and the requirements that such networks need to satisfy are defined. A generic network architectural model is described and the major design parameters identified. The role of the local network is to provide network transparency for a multiplicity of computer devices. How well this role is performed is a function of the protocol design and implementation. MITRE's Cablenet is one of several experimental cable-bus networks employing coaxial cable as a shared wideband transmission medium, and using microprocessor based interface units. This paper presents a protocol architecture design based on local network characteristics and the extensive computational capabilities expected from the next generation of microprocessors. We have designed a Flexible Transport Protocol which allows our cable-bus access node to assume a wide range of characteristics; these characteristics can be chosen judiciously to fulfil the needs of a wide spectrum of subscribers.