VLAN is introduced with the experiment

目录

一、VLAN概述

二、配置实验

三、总结

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一、VLAN概述

1.vlan概念及作用

        vlanIt's called a virtual local area network（VLAN Virtual LAN ）虚拟局域网是一组逻辑上的设备和用户,这些设备和用户并不受物理位置的限制,They can be organized according to factors such as functional department application,communicate with each other as if they were on the same network segment.The role is to divide the broadcast domain,Controls the scope of broadcast messaging.

2.vlan的种类

        静态VLAN：基于端口划分静态VLAN

        动态VLAN：基于MAC地址划分动态VLAN

3.vlan的id范围

 4.trunk的作用

        ①Trunkis a public link,在Trunkcan send allvlan的数据,to achieve allvlan可以通过 A link communicates across switches.
        ②Trunk根据不同的vlan号给vlanThe sent data adds an identifier,使同一vlanCan communicate across switches.

二、配置实验

 过程：

步骤1：Set up four hostsand two servers的IP地址和子网掩码

 

 

步骤2：配置交换机sw1

 

 步骤3：配置交换机sw2

步骤4：进行测试

pc1 ping server2

    

pc2 ping server2

Pc3 ping server1

Pc4 ping server1

server1 ping pc3

Server1 ping pc4

Server2 ping pc1

Server2 ping pc2

实验成功！

三、总结

创建vlan ：默认只有 vlan 1
[系统视图] vlan   10                            ###建立单个vlan
[系统视图] vlan   batch   20  30  40    ###一次性建立多个vlan
[sw1]display vlan                               ###查看vlan 的一些基本信息

access   交换机  主机  路由器

trunk   The switch core switch is connected