本文分析了企业原有的层次式网络设计的不足，重点讨论了模块化网络设计。在此设计中，层次式网络模型的各层被划分为基本的功能单元，把企业园区网分为交换模块和核心模块，使整个网络组织有序、高效和可扩展。%this paper analyzes the shortcomings of the original hierarchical network design, modular network design is discussed emphatically. In this design, the hierarchical network model of each layer is divided into basic function units, divides into the enterprise campus network exchange module and the core module, make the whole network organized, efficient, and extensible.
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