CISCO 配置實驗 --Trunk

實驗拓撲

實驗目的：

三台交換機配置三個VLAN命名為:VLAN10、VLAN20、VLAN30

配置f0/5-9為VLAN 10

配置f0/10-14為VLAN 20

配置f0/15-20為VLAN 30

配置第一台交換機

Switch>en

Switch#vlan database

Switch(vlan)#vlan 2 name vlan10

Switch(vlan)#vlan 3 name vlan20

Switch(vlan)#vlan 4 name vlan30

Switch(vlan)#exit

Switch#configure t

Enter configuration commands, one per line.  End with CNTL/Z.

Switch(config)#hostname sw1

sw1(config)#interface range fastEthernet 0/5 -9

sw1(config-if-range)#switchport mode access

sw1(config-if-range)#switchport access vlan 2

sw1(config)#interface range fastEthernet 0/10 -14

sw1(config-if-range)#switchport access vlan 3

sw1(config)#interface range fastEthernet 0/15 -20

sw1(config-if-range)#switchport access vlan 4

配置第二台交換機

Switch(config)#hostname sw2

sw2(config)#interface range fastEthernet 0/5 -9

sw2(config-if-range)#switchport mode access

sw2(config-if-range)#switchport access vlan 2

sw2(config-if-range)#exit

sw2(config)#interface range fastEthernet 0/10 -14

sw2(config-if-range)#switchport access vlan 3

sw2(config-if-range)#exi

sw2(config)#interface range fastEthernet 0/15 -20

sw2(config-if-range)#switchport access vlan 4

配置第三台交換機

Switch#configure terminal

Switch(config)#hostname sw3

Sw4(config)#interface range fastEthernet 0/5 -9

Sw4(config-if-range)#switchport mode access

Sw4(config-if-range)#switchport access vlan 2

Sw4(config-if-range)#exit

Sw4(config)#interface range fastEthernet 0/10 -14

Sw4(config-if-range)#switchport access vlan 3

Sw4(config-if-range)#exi

Sw4(config)#interface range fastEthernet 0/15 -20

Sw4(config-if-range)#switchport access vlan 4

配置彙聚鍊路

sw1(config)#interface fastEthernet 0/1

sw1(config-if)#switchport mode trunk

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up

sw2(config)#interface fastEthernet 0/2

sw2(config-if)#switchport mode trunk

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up

驗證配置：

可以利用以下指令驗證端口是否啟用彙聚

sw1#show interfaces fastEthernet 0/1 switchport

Name: Fa0/1

Switchport: Enabled

Administrative Mode: trunk

Operational Mode: trunk

sw2#show interfaces fastEthernet 0/1 switchport

實驗結果：

PC1能夠PING通PC4和PC7其餘不能PINNG通，因為他們都屬于VLAN 1

PC2能夠PING通PC5和PC8其餘不能PINNG通，因為他們都屬于VLAN 2

PC3能夠PING通PC6和PC9其餘不能PINNG通，因為他們都屬于VLAN 3