本文的主要目的是理解NS2的architecture, 了解NS2的基本原理. NS2采用了Tcl/C++分裂

的模型, 在这种模型中OTcl是处于比较关键的位置, NS2采用了Tcl的编程模式. 使用C++来编

写应用实例, 使用OTcl来操纵这些实例. 理解了OTcl就理解了NS2的框架. 本文先简述Tcl语言

的嵌入特性, 然后描述了NS2的应用场景, 进而分析NS2的架构, 以及实现该架构采用的技术-The main purpose of this paper is to understand the NS2 of the architecture, to understand the basic principles of NS2' s. NS2 using Tcl/C++ split model, in which the model is in a relatively OTcl a key position, NS2 using Tcl programming model. The use of C++ to the preparation of application example of using OTcl to manipulate those examples. OTcl understand the fr a mework for the understanding of the NS2. This paper will explain briefly the Tcl language, embedded features, and then describes the application of NS2 scenario, and then analyze the structure of NS2, and the realization of the architecture features Technical