Communication mechanism in distributed protocol testing system

In order to test network protocols of distributed and concurrent natures, it is necessary to introduce the distributed testing framework. In this paper, we first present a formal model of distributed testing system, and furthermore, real distributed testing system architecture is proposed. With that, we discuss communication issues between test components and a communication algorithm is given. Based on the above models and algorithm, a practical communication mechanism combining distributed message queue and shared memory is presented, which provides a uniform and transparent lower-layer communication interface for the whole test system. In our practice, this mechanism is proved to be feasible and efficient.