利用三层交换的路由功能,把三层交换看成路由器。
它与两台路由器建立ospf的区别是,交换机连接路由器的接口设置access链路模式,建立一个vlan,给vlan设置ip地址。
SW1
[sw1]vlan batch 10 20
[sw1]int vlan10 [sw1-Vlanif10]ip a 192.168.10.1 24
[sw1-Vlanif10]int g0/0/1 [sw1-GigabitEthernet0/0/1]p l a [sw1-GigabitEthernet0/0/1]p d v 10
[sw1]ospf 1 router-id 1.1.1.1 [sw1-ospf-1]area 0 [sw1-ospf-1-area-0.0.0.0]network 192.168.10.0 0.0.0.255
SW2
[SW2]vlan batch 10 20
[SW2]int vlan20 [SW2-Vlanif20]ip a 192.168.20.1 24
[SW2]int g0/0/1 [SW2-GigabitEthernet0/0/1]p l a [SW2-GigabitEthernet0/0/1]p d v 20
[SW2]ospf 1 router-id 2.2.2.2 [SW2-ospf-1]area 0 [SW2-ospf-1-area-0.0.0.0]network 192.168.20.0 0.0.0.255
AR
[AR]int g0/0/0 [AR-GigabitEthernet0/0/0]ip a 192.168.10.2 24 [AR]int g0/0/1 [AR-GigabitEthernet0/0/1]ip a 192.168.20.2 24
[AR]ospf 1 router-id 3.3.3.3 [AR-ospf-1]area 0 [AR-ospf-1-area-0.0.0.0]network 192.168.10.0 0.0.0.255 [AR-ospf-1-area-0.0.0.0]network 192.168.20.0 0.0.0.255