L.0 language is a new parallel, high-level, executable specification language created at Bellcore for the design and implementation of software systems with inherent concurrency such as communications protocols, services, and networks. L.0 was explicitly designed to express coordination, simultaneity, and the hierarchical composition of systems from component subsystems.L.0 has been used to prototype communications protocols and services and to study network architectures and switching systems. This paper discusses the initial application of L.0: the prototyping of a large portion of an experimental data communication services network architecture being studied by Bellcore.
The realization of a new protocol is a long and complicated procedure whose inherent technical difficulty is exacerbated by the scarcity of useful tools. This paper discusses the initial use of a system that is being developed by Bell Communication Research to help in the specification, analysis, and implementation of communications protocols. This paper describes the application of this system to the specification and implementation of an industry standard protocol.
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