第三层交换机 meaning in Chinese

layer switch

The layer 3 switching technology , which combines the advantages of layer 2 switching and layer 3 routing is discussed . the general principles and implementation methods of ethernet layer 3 switch are described , and its advantages and applications are also introduced . in the later part of the thesis , detailed analysis is made for the realization principles of the switching structure and internal function modules of multiplayer
该部分重点解释了千兆以太网的体系结构和协议规范，对pcs 、 pma和pmd子层的实现技术和有关算法的设计思想进行了深入的分析；并对设计中用到的几种物理层芯片进行了介绍；此外该部分还分析了传统第二层交换机和路由器的局限性，对集第二层交换和第三层路由优点于一身的第三层交换技术进行了讨论，阐述了以太网第三层交换机的一般原理和实现，并介绍了其优点和应用。