交换机的配置命令: SW 0: Switch> Switch>en Switch#conf Configuring from terminal, memory, or network [terminal]? Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#vlan 2 Switch(config-vlan)#exit Switch(config)#int f0/2 Switch(config-if)#switchport access vlan 2 Switch(config-if)#no shut Switch(config-if)#int f0/3 Switch(config-if)#switchport mode trunk %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up Switch(config-if)#exit Switch(config)# SW 1: Switch>en Switch#conf Configuring from terminal, memory, or network [terminal]? Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#int f0/2 Switch(config-if)#switchport access vlan 2 % Access VLAN does not exist. Creating vlan 2 Switch(config-if)#no shut Switch(config-if)#exit Switch(config)#int f0/3 Switch(config-if)#switchport mode trunk %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up Switch(config-if)# SW 2: Switch>en Switch#conf Configuring from terminal, memory, or network [terminal]? Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#int f0/2 Switch(config-if)#switchport access vlan 2 % Access VLAN does not exist. Creating vlan 2 Switch(config-if)#exit Switch(config)#int f0/3 Switch(config-if)#switchport mode trunk Switch(config-if)# 三层交换的配置命令: Switch>en Switch#conf Configuring from terminal, memory, or network [terminal]? Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#int f0/1 Switch(config-if)#switchport mode trunk %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down Switch(config-if)#exit Switch(config)#int f0/2 Switch(config-if)#switchport mode trunk Switch(config-if)#exit Switch(config)#vlan 2 Switch(config-vlan)#exit Switch(config)#int vlan 1 Switch(config-if)#no shut %LINK-5-CHANGED: Interface Vlan1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up Switch(config-if)#ip address 192.168.1.168 255.255.255.0 Switch(config-if)#exit Switch(config)#int vlan 2 %LINK-5-CHANGED: Interface Vlan2, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan2, changed state to upSwitch(config-if)#ip add Switch(config-if)#ip address 192.168.2.168 255.255.255.0 Switch(config-if)# %LINK-5-CHANGED: Interface FastEthernet0/3, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up Switch(config-if)#exit Switch(config)#int f0/3 Switch(config-if)#no switchport %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to upSwitch(config-if)# Switch(config-if)#ip address 192.168.10.1 255.255.255.0 Switch(config-if)#no shut Switch(config-if)#exit Switch(config)#ip routing Switch(config-if)#exit Switch(config)#ip route 0.0.0.0 0.0.0.0 192.168.10.2 Switch(config)# 路由器的配置: Router>en Router#conf Configuring from terminal, memory, or network [terminal]? Enter configuration commands, one per line. End with CNTL/Z. Router(config)#int f0/0 Router(config-if)#no shut %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up Router(config-if)#exit Router(config)#int f0/1 Router(config-if)#no shut %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Router(config-if)#exit Router(config)#int f0/0 Router(config-if)#no shut Router(config-if)#exit Router(config)#int f0/0.1 Router(config-subif)#encapsulation dot1Q 1 Router(config-subif)#ip address 192.168.3.168 255.255.255.0 Router(config-subif)#exit Router(config)#int f0/0.2 Router(config-subif)#encapsulation dot1Q 2 Router(config-subif)#ip add Router(config-subif)#ip address 192.168.4.168 255.255.255.0 Router(config-subif)#exit Router(config)#ip route 0.0.0.0 0.0.0.0 192.168.10.1 Router(config)#exit %SYS-5-CONFIG_I: Configured from console by console Router#conf Configuring from terminal, memory, or network [terminal]? Enter configuration commands, one per line. End with CNTL/Z. Router(config)#int f0/1 Router(config-if)#ip add Router(config-if)#ip address 192.168.10.2 255.255.255.0 Router(config-if)#
VLAN即Virtual Local Area Network,虚拟局域网,是计算机网络中一个很重要和很强大的功能,通过VLAN能够在逻辑上把一个广播域划分成多个广播域,一个广播域对应了一个特定的用户组,已满足不同部门、群组用户上网需求。相比传统的局域网技术,VLAN技术有助于控制流量、减少设备投资、简化网络管理、提高网络的安全性。