网络模拟软件NS2与OPNET的剖析比较  

Comparative Analysis on Network Simulation Software NS2 and OPNET

作　　者：王波[1] 周志伟[1] 

机构地区：[1]重庆大学计算机学院建筑智能化与城市数字化研究室,重庆400044

出　　处：《计算机系统应用》2010年第6期90-95,共6页Computer Systems & Applications

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07315-001)

摘　　要：NS2和OPNET是目前主流的网络模拟软件,为深入地剖析比较它们的特点及差别以供学习和选用时参考,从软件技术、使用方法和引擎性能三个方面进行了详细对比分析。在软件技术方面分别从体系结构、支持的网络技术、网络设备模型库和软件可扩展性上进行分析比较;在模拟器引擎性能方面,通过在相同模拟条件下,选取内存消耗和CPU运算时间两个指标,针对不同规模的抽象网络,分别对OPNET和NS2的引擎性能进行了对比实验。结果表明,OPNET具有商业软件的优势,在用户友好性、模拟速度、内存消耗等方面优于NS2,而NS2则在开源和易扩展性方面优于OPNET,适合于模拟中小型网络。This paper presents the features and differences of NS2 and OPNET by comparing them in the aspects of software technique, operation method and engineer performance. As to the software technique, it includes four points for comparison： system architecture, supported network technique, network equipment model bank and software scalability. To compare the performance of the simulator engine, an abstract network which is not real was established and simulated by these two simulators separately under identical conditions. Meanwhile, two performance indices （memory consumption and computation time） were measured, recorded and analyzed. The comparison result indicates that OPENT as a commercial software is better than NS2 in user-friendliness, simulation speed and memory consumption while NS2 is superior to OPNET in the aspect of open-source and scalability and well suited for small scale network simulation.

关 键 词：网络模拟 网络模拟测试 NS2 OPNET 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]