【摘要】 网络仿真是设计、验证、分析和评测网络协议及网络应用程序的重要方法,NS是目前网络协议研究领域广泛使用的网络模拟和仿真软件,具有良好的开放性和可扩展性。文章分析了NS的仿真实现-NSE采用的网络仿真方法及其不支持组播仿真的局限;给出了一种在局域网内构建支持组播的网络仿真环境的方法,通过该方法可以在局域网上构造易配置、仿真精度较高、并且支持组播的仿真环境;最后给出对该组播仿真方法的测试及评价。更多还原

【Abstract】 Network emulation is an important methodology for design,validation,analysis and evaluation of both network rotocols and applications.NS is one of the most powerful and widespread tools for network simulation and emulation,it is open and scaleable.The paper analyzes the NS emulation facility-NSE and its drawback of not supporting multicast;presents a method to construct the network emulation environment supporting multicast on LAN,which makes the construction of emulation more convenient and precise;Finally it shows the test and evaluation of the method.更多还原