1. 两台三层交换机下同一vlan内同一网段的主机之间的互通如下图pc1和pc2同为vlan10 ip在同一网段。

[LWS1]sysname A
[A]vlan batch 10 to 11   //批量创建vlan
[A]
[A]int g0/0/1
[A-Ethernet0/0/1]port link-type access
[A-Ethernet0/0/1]port default vlan 10
[A-Ethernet0/0/1]q
[A]int g0/0/2
[A-Ethernet0/0/2]port link-type trunk
[A-Ethernet0/0/2]port trunk allow-pass vlan 11   //port trunk allow-pass vlan all
[A-Ethernet0/0/2]q
[A]q
<A>save


[LWS2]sysname B
[B]vlan batch 10 to 11
[B]int g0/0/1
[B-Ethernet0/0/1]port link-type access
[B-Ethernet0/0/1]port default vlan 10
[B-Ethernet0/0/1]q
[B]int g0/0/2
[B-Ethernet0/0/2]port link-type trunk
[B-Ethernet0/0/2]port trunk allow-pass vlan 11   //port trunk allow-pass vlan all
[B-Ethernet0/0/2]q
[B]q
<B>save

注意：交换机A和交换机B都是Ethernet0/0/2互联；交换机Ethernet0/0/1下面连接的是PC

2. 两台三层交换机下同一vlan 内不同网段的主机之间的互通如下图pc1和pc2。由于主机不在同一网段，需要通过静态协议路由配置。

[LWS1]sysname A
[A]vlan batch 10 to 11   //批量创建vlan
[A]
[A]int g0/0/1
[A-Ethernet0/0/1]port link-type access
[A-Ethernet0/0/1]port default vlan 10
[A-Ethernet0/0/1]q
[A]int g0/0/2
[A-Ethernet0/0/2]port link-type trunk
[A-Ethernet0/0/2]port trunk allow-pass vlan 11   //port trunk allow-pass vlan all
[A-Ethernet0/0/2]q
[A]int vlanif 10
[A-Vlanif10]ip address 192.168.1.1 24
[A-Vlanif10]q
[A]int vlanif 11
[A-Vlanif11]ip address 192.168.2.1 24
[A-Vlanif11]q
[A]ip route-static 192.168.3.0 255.255.255.0 192.168.2.2
[A]q
<A>save


[LWS2]sysname B
[B]vlan batch 11 to 12
[B]int g0/0/1
[B-Ethernet0/0/1]port link-type access
[B-Ethernet0/0/1]port default vlan 12
[B-Ethernet0/0/1]q
[B]int g0/0/2
[B-Ethernet0/0/2]port link-type trunk
[B-Ethernet0/0/2]port trunk allow-pass vlan 11   //port trunk allow-pass vlan all
[B-Ethernet0/0/2]q
[A]int vlanif 11
[A-Vlanif10]ip address 192.168.2.2 24
[A-Vlanif10]q
[A]int vlanif 12
[A-Vlanif11]ip address 192.168.3.2 24
[A-Vlanif11]q
[A]ip route-static 192.168.1.0 255.255.255.0 192.168.2.1
[B]q
<B>save