《计算机网络》实验指导书：相同VLAN的跨交换机通信.doc

海量资料 超值下载相同VLAN的跨交换机通信一、实验目的1.了解IEEE802.1q的实现方法，掌握跨二层交换机相同VLAN间通信的调试方法； 2.了解交换机接口的trunk模式和access模式； 二、实验描述某公司有两层楼，每个楼层都有一台交换机以满足上网需求，每层都有技术部、销售部，两个楼层技术部的计算机之间可以互相访问，销售部之间也可以互相访问，技术部和销售部之间不能自由访问，通过VLAN划分使技术部和销售部之间不能自由访问；使用802.1Q实现跨交换机的VLAN通信。三、实验拓扑四、所需设备1.S2960 2台2.PC 4台3.网线 5根五、实验步骤第1步：分别在SW1和SW2上划分两个VLAN,VLAN 2和VLAN 3,并添加端口。 SW1(config)#vlan 2SW1(config-vlan)#name salesSW1(config-vlan)#exitSW1(config)#int f0/1SW1(config-if)#switchport mode accessSW1(config-if)#switchport access vlan 2SW1(config-if)#exitSW1(config)#vlan 3SW1(config-vlan)#name techSW1(config-vlan)#exitSW1(config)#int f0/12SW1(config-if)#switchport mode accessSW1(config-if)#switchport access vlan 3SW1(config-if)#exit交换机SW2配置同SW1。第2步：设置交换机trunk端口。SW1(config)#int f0/24SW1(config-if)#switchport mode trunk将f0/24端口配置为trunk,通过打标记，实现VLAN的跨交换机通信SW1(config-if)#exit交换机SW2配置同SW1./若交换机为三层交换机/SW3560(config)#int f0/24/SW3560(config-if)# switchport trunk encapsulation dot1q/SW3560(config-if)#switchport mode trunk/SW3560(config-if)#exit第3步：配置PC1、PC2、PC3和PC4的IP地址PC1:192.168.2.2/24 PC2：192.168.3.2/24PC3:192.168.2.3/24 PC4: 192.168.3.3/24第4步：验证实验SW1 VLAN 2 中的PC1 ping SW2 VLAN 2 中的PC3：六、注意事项1.取消一个VLAN可以使用no vlan 2.在执行no vlan后注意观察vlan下的端口是否出现。七、参考配置SW1#sh runBuilding configuration.Current configuration : 1021 bytes!version 12.2no service password-encryption!hostname SW1!interface FastEthernet0/1 switchport access vlan 2 switchport mode access!interface FastEthernet0/2!interface FastEthernet0/3!interface FastEthernet0/4!interface FastEthernet0/5!interface FastEthernet0/6!interface FastEthernet0/7!interface FastEthernet0/8!interface FastEthernet0/9!interface FastEthernet0/10!interface FastEthernet0/11!interface FastEthernet0/12 switchport access vlan 3!interface FastEthernet0/13!interface FastEthernet0/14!interface FastEthernet0/15!interface FastEthernet0/16!interface FastEthernet0/17!interface FastEthernet0/18!interface FastEthernet0/19!interface FastEthernet0/20!interface FastEthernet0/21!interface FastEthernet0/22!interface FastEthernet0/23!interface FastEthernet0/24 switchport mode trunk!interface GigabitEthernet1/1!interface GigabitEthernet1/2!interface Vlan1 no ip address shutdown!line con 0!line vty 0 4 loginline vty 5 15 login!EndSW2#sh runBuilding configuration.Current configuration : 1045 bytes!version 12.2no service password-encryption!hostname SW2!interface FastEthernet0/1 switchport access vlan 2 switchport mode access!interface FastEthernet0/2!interface FastEthernet0/3!interface FastEthernet0/4!interface FastEthernet0/5!interface FastEthernet0/6!interface FastEthernet0/7!interface FastEthernet0/8!interface FastEthernet0/9!interface FastEthernet0/10!interface FastEthernet0/11!interface FastEthernet0/12 switchport access vlan 3 switchport mode access!interface FastEthernet0/13!interface FastEthernet0/14!interface FastEthernet0/15!interface FastEthernet0/16!interface FastEthernet0/17!interface FastEthernet0/18!interface FastEthernet0/19!interface FastEthernet0/20!interface FastEthernet0/21!interface FastEthernet0/22!interface FastEthernet0/23!interface FastEthernet0/24 switchport