VLAN技术在以太网中的应用

Application of VLAN technology in Ethernet

以太网是目前企业园区网络内部局域网的主要组网架构,具有结构简单,部署方便,成本低廉等优点。由于交换机在传递未知单播帧时往往采用广播的方式,交换设备硬件负载高,数据转发率急剧下降,掉包严重,并且以太网安全性差,无法对企业网络的安全性提供保障。为了解决以太网的这个问题,必须对以太网广播的范围进行一定的控制和隔离,VLAN技术的出现为此提出了完美的解决方案。文章对VLAN技术在以太网中的应用进行研究。

Ethernet is the main network architecture of the internal LAN in the enterprise park network. It has the advantages of simple structure, convenient deployment, low cost and so on. Because the switch is often used in broadcast mode transfer unknown unicast frame, switching equipment hardware load is high, the data forwarding rate dropped sharply, substitution is serious, and the Ethernet with poor safety, not security of enterprise network security. In order to solve the problem of Ethernet, we must control and isolate the range of Ethernet broadcasting, and put forward a perfect solution for the emergence of VLAN technology. This paper studies the application of VLAN technology in Ethernet.