基于以太网交换机转发机制的工作层次探究  

Research on Working Level Based on Forwarding Mechanism of Ethernet Switches

作　　者：刘诣[1] 胡晓筝[1] Liu Yi;Hu Xiaozheng(Hebei Vocational College of Politics and Law,Shijiazhuang Hebei 050061,China)

机构地区：[1]河北政法职业学院,河北石家庄050061

出　　处：《信息与电脑》2018年第21期147-150,共4页Information & Computer

摘　　要：以太网交换机作为园区网内的"骄子和重器",连接了多个以太网物理段,拓展了园区网范围,隔离了冲突域,提高了园区网性能。在传统的二层交换机基础上,详细分析了交换机的转发机制,利用交换机的转发机制和VLAN间路由的特性,论述了三层交换机硬件组成和工作层次。通过精确定义三层交换机工作层次,阐明了交换机与路由器的不同。Ethernet switches as the favourite and the weight of the intranet,connect multiple ethernet physical sections and expand the scope of the intranet,isolate conflict areas and improve the performance of the intranet.Based on the traditional two-layer switch,analyzes the forwarding mechanism of the switch in detail,and discusses the hardware composition and working level of the three-layer switch based on the forwarding mechanism of the switch and the characteristics of the routing between VLANs.Through the precise definition of the working level of the three-layer switch,the different uses of switches and routers are clarified.

关 键 词：以太网交换机 二层交换机 VLAN间路由 三层交换机 

分 类 号：TP393.11[自动化与计算机技术—计算机应用技术]