华为交换机Trunk配置
Trunk
采用Trunk中继链路技术可以实现不同交换机同网段的Vlan间通信。Trunk中继技术可以实现在一条物理线路中可以传递多个Vlan间的信息,如:交换机从属于Vlan2的端口接收到数据,在Trunk中继链路上进行传输前,会先打上一个标记,表明该数据包是Vlan2的,到达对方交换机时,交换机会将该标记去掉,只发送到属于Vlan2的端口上。
例:以下拓扑图中,子网掩码都为255.255.255.0
Vlan1:
左:192.168.1.1 192.168.1.2
右:192.168.1.3 192.168.1.4
Vlan2:
左:192.168.:2.1 192.168.2.2
右:192.168.2.3 192.168.2.4
Vlan3:
左:192.168.3.1 192.168.3.2
右:192.168.3.3 192.168.3.4
S3700-LSW1
<Huawei>system-view [Huawei]interface Eth0/0/7 [Huawei-Ethernet0/0/7]port link-type trunk [Huawei-Ethernet0/0/7]port trunk allow-pass vlan all [Huawei]display current-configuration # interface Ethernet0/0/1 port link-type access # interface Ethernet0/0/2 port link-type access # interface Ethernet0/0/3 port link-type access port default vlan 2 # interface Ethernet0/0/4 port link-type access port default vlan 2 # interface Ethernet0/0/5 port link-type access port default vlan 3 # interface Ethernet0/0/6 port link-type access port default vlan 3 # interface Ethernet0/0/7 port link-type trunk port trunk allow-pass vlan 2 to 4094
S3700-LSW2
<Huawei>system-view [Huawei]interface Eth0/0/3 [Huawei-Ethernet0/0/3]port link-type trunk [Huawei-Ethernet0/0/3]port trunk allow-pass vlan all [Huawei]display current-configuration # interface Ethernet0/0/1 port link-type access port default vlan 2 # interface Ethernet0/0/2 port link-type access port default vlan 2 # interface Ethernet0/0/3 port link-type trunk port trunk allow-pass vlan 2 to 4094 # interface Ethernet0/0/4 port link-type access # interface Ethernet0/0/5 port link-type access # interface Ethernet0/0/6 port link-type access port default vlan 3 # interface Ethernet0/0/7 port link-type access port default vlan 3
测试
不同交换机同网段Vlan之间能够互相ping通,说明两个交换机接口配置的Trunk中继链路技术实现成功。