一、 图例说明:

(S1、S2 、S3 、S4、S5、S6 、S7 、S8 、S9为二层交换,S0为三层交换)。

二、 拓扑图分析:

该网络拓扑是根据宿舍楼的真实环境搭建的(根据图示文字提示标记):

1. 宿舍内部网【每个宿舍一个VLAN,由很多个VLAN 组成】。

2. 接入网(宿舍交换机接入到楼层交换机,楼层交换机接入到宿舍楼的三层交换机)。

三、 要求

1. 使用vtp协议让交换机学到VLAN。

2. 将楼层交换下层的宿舍交换加入到VLAN 。

3. 在宿舍楼的三层交换为VLAN 网段配置地址。

4. 最终使得全网通,宿舍之间通信。

一、 操作步骤:


1.打开三层交换S0的trunk口

S0#conf t S0(config)#int fa 0/1 S0(config-if)#switchport trunk encapsulation dot1q S0(config-if)#switchport mode trunk S0(config-if)#exit S0(config)#int fa 0/2 S0(config-if)#switchport trunk encapsulation dot1q S0(config-if)#switchport mode trunk S0(config-if)#exit S0(config)#int fa 0/3 S0(config-if)#switchport trunk encapsulation dot1q S0(config-if)#switchport mode trunk


1.打开S1交换的trunk口

S1#conf t S1(config)#int fa 0/1 S1(config-if)#switchport mode trunk


2.打开S2交换的trunk口

S2#conf t S2(config)#int fa 0/1 S2(config-if)#switchport mode trunk


3.打开S3交换的trunk口

S3#conf t S3(config)#int fa 0/1 S3(config-if)#switchport mode trunk


4.创建VLAN 并启动VTP

S1#vlan database S1(vlan)#vtp domain liu Changing VTP domain name from a to liu R1(vlan)#vlan 2 VLAN 2 added: Name: VLAN0002 R1(vlan)#vlan 3 VLAN 3 added: Name: VLAN0003 R1(vlan)#vlan 4 VLAN 4 added: Name: VLAN0004 R1(vlan)#vlan 5 VLAN 5 added: Name: VLAN0005 R1(vlan)#vlan 6 VLAN 6 added: Name: VLAN0006 R1(vlan)#vlan 7 VLAN 7 added: Name: VLAN0007

5.将端口加入到VLAN

S1(config)#int fa 0/2 S1(config-if)#switchport mode access S1(config-if)#switchport access vlan 2 S1(config)#int fa 0/3 S1(config-if)#switchport mode access S1(config-if)#switchport access vlan 3


S2(config)#int fa 0/3 S2(config-if)#switchport mode access S2(config-if)#switchport access vlan 4 S2(config)#int fa 0/2 S2(config-if)#switchport mode access S2(config-if)#switchport access vlan 5


S3(config)#int fa 0/2 S3(config-if)#switchport mode access S3(config-if)#switchport access vlan 6 S3(config)#int fa 0/3 S3(config-if)#switchport mode access S3(config-if)#switchport access vlan 7


6.在三层交换S0上配置VLAN的IP地址

S0#conf t S0(config)#int vlan 2 S0(config-if)#ip address 192.168.2.1 255.255.255.0 S0(config)#int vlan 3 S0(config-if)#ip address 192.168.3.1 255.255.255.0 S0(config)#int vlan 4 S0(config-if)#ip address 192.168.4.1 255.255.255.0 S0(config)#int vlan 5 S0(config-if)#ip address 192.168.5.1 255.255.255.0 S0(config)#int vlan 6 S0(config-if)#ip address 192.168.6.1 255.255.255.0 S0(config)#int vlan 7 S0(config-if)#ip address 192.168.7.1 255.255.255.0

7.在三层交换S0上配置DHCP服务

S0(config)#ip dhcp pool 2 S0(dhcp-config)#network 192.168.2.0 255.255.255.0 S0(dhcp-config)#default-router 192.168.2.1

S0(config)#ip dhcp pool 3 S0(dhcp-config)#network 192.168.3.0 255.255.255.0 S0(dhcp-config)#default-router 192.168.3.1

S0(config)#ip dhcp pool 4 S0(dhcp-config)#network 192.168.4.0 255.255.255.0 S0(dhcp-config)#default-router 192.168.4.1

S0(config)#ip dhcp pool 5 S0(dhcp-config)#network 192.168.5.0 255.255.255.0 S0(dhcp-config)#default-router 192.168.5.1

S0(config)#ip dhcp pool 6 S0(dhcp-config)#network 192.168.6.0 255.255.255.0 S0(dhcp-config)#default-router 192.168.6.1

S0(config)#ip dhcp pool 7 S0(dhcp-config)#network 192.168.7.0 255.255.255.0 S0(dhcp-config)#default-router 192.168.7.1

8.在三层交换S0上查看路由表

S0(config)#ip routing S0#show ip route

9.给PC网络设置DHCP自动获取

10.给PC网络设置DHCP自动获取

11.连通性测试