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该文分析了引入第三层交换的必要性，并提出一个第三层交换的模型，将传统的第三层划分为第三层交换和第三层路由选择两个功能子层，描述了第三层交换机的结构。同时文中还给出了基于这样一个模型的软件仿真结果。通过实验结果，可以证实采用第三层交换方式在时延上比路由方式明显改善。
This paper analyzes the necessity of introducing the third layer of exchange and proposes a third layer of the exchange model, the traditional third layer is divided into the third layer switching and the third layer routing two functional sub-layer, described the first The structure of the three switches. At the same time, the article also gives the software simulation results based on such a model. Through the experimental results, it can be confirmed that using the third layer of exchange method significantly improves the delay over the routing method.