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针对硬件式冗余容错系统的可靠性测评问题，提出了分布式仿真的思想；基于该思想进行可靠性的评估和预测，提供了并行工作的优越性和灵活性；并重点介绍了分布式仿真系统设计中至关重要的时钟同步通信协议的设计与实现过程，包括分布式仿真的可靠性模型、时钟包的格式以及时钟同步算法等。
Aiming at the problem of reliability evaluation of hardware redundant fault-tolerant system, the idea of distributed simulation is put forward. Based on this idea, the reliability evaluation and prediction provide the advantages and flexibility of parallel work. And the emphasis is put on the distributed simulation The design and implementation process of the clock synchronization protocol that is crucial in system design include the reliability model of distributed simulation, clock packet format and clock synchronization algorithm.