VLAN 在企业网中的设计

传统的局域网往往是一个平的交换型网络，每台没备都可以看到每个被传播的广播包，这样会导致大量无用的广播信息充斥整个网络，既缺乏安全性，又不能智能地对数据流进行负载均衡。针对这些问题，我们引入虚拟局城网(VLAN)的技术。本文概述了公司内局域网的状况和需求，介绍了Trunk的工作方式及VLAN划分的具体策略，并据此给出了公司局域网内实施VLAN的具体方法。

A Design of VLAN in Intranets

Usually,traditional network of local area is a flat exchang ea ble type and every transmitted broadcast packet can be obtained in each equipmen t in the same network,which leads to the whole net with a great deal of useless broadcasting informations,and results in short of safety and unable to balance l oad of data stream intelligently.The paper introduces the technique of virual lo cal area network(VLAN).This paper presents a brief introduction on the current s tatus and desires of VLAN in enterprises and illustrates running mode of Trunk a nd detailed strategies of VLAN's segmentation,according to which shows concrete methods to implemet VLAN in Intranets.