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本文在分析比较二、三层交换技术的基础上介绍了三层交换技术的工作原理。从网络扩展能力、数据处理能力、多协议支持能力以及冗余通道等多方面阐述了三层交换技术的特点。对比分析了基于硬件结构和基于软件结构的两种三层交换技术的工作流程,阐述了三层交换技术在虚拟局域网中的应用。
Based on the analysis and comparison of Layer 2 and Layer 3 switching technologies, this paper introduces the working principle of Layer 3 switching technology. From the network expansion capabilities, data processing capabilities, multi-protocol support capabilities and redundant channels and other aspects of the three-tier exchange technology features. The workflow of two kinds of three-layer switching technology based on hardware structure and software structure is compared and analyzed. The application of three-layer switching technology in virtual local area network is expounded.