网络仿真可以为协议评估提供低成本、可控制、可重复、高真实度的测试平台.主要分析了网络模拟、实际测试和网络仿真对协议评估的影响,归纳了网络仿真的分类,重点对参数控制的网络仿真系统设计思想进行了分析,最后对网络仿真的发展趋势进行了展望.
Emulation provides a third point for protocol testing and evaluation; it is expected to be a low-cost, controlla ble and repeatable testing platform with high degree of realism. In this paper, we make a survey on network emulation sys tems, including their concepts, classification, focus on design methodology of the parameter control emulation system, the de veloping trends and main challenges are also summarized.