本文简要地介绍了虚拟局域网(VLAN)的概念和技术以及思科网院提供的Packet Tracer模拟软件，较为详细地介绍了如何利用Packet Tracer实现交换机VLAN和VTP配置的方法与步骤，丰富了实验教学手段。

This article briefly introduces the concepts and technologies of Virtual LAN (VLAN) and the Packet Tracer simulation software provided by Cisco Network Academy．And a more detailed method and step of using Packet Tracer to configure VLAN and VTP are presented，which can greatly enrich the experimental teaching methods．