【摘要】 网络模拟是测试和评价网络协议性能的重要手段 .随着计算机网络的发展 ,网络模型变得更大更复杂 ,使网络模拟往往要运行很长时间 .本文以在网络研究领域广泛使用的网络模拟器ns为基础 ,应用并行离散事件模拟技术 (PDES)修改其串行事件调度机制 ,扩展网络模型库 ,实现了ns在工作站机群环境下的并行执行 ,为大规模网络的模拟提供了支持更多还原

【Abstract】 Network simulation is widely used in network research to evaluate the performance of network protocols.With the development of computer networks,network models grow in size and complexity,so execution time of simulation can be unbearably long.A parallel network simulator which runs on network of workstations is presented,the parallel network simulator is designed based on the popular sequential network simulator ns.Parallel discrete event simulation (PDES) techniques are applied to modify the event scheduling mechanism in ns.Some necessary extensions are also made to ns model library.Performance measures including speedup and memory consumption are evaluated at last.更多还原