11.13 experiment

AR1:
system-view
interface LoopBack 0
ip address 192.168.10.254 24
interface LoopBack 1
ip address 192.168.20.254 24
quit
interface GigabitEthernet 0/0/0
ip address 10.1.1.1 30
quit
ip route-static 10.1.1.8 30 10.1.1.2
ip route-static 172.16.1.0 24 10.1.1.2

AR2:
system-view
interface GigabitEthernet 0/0/0
ip address 10.1.1.2 30
interface GigabitEthernet 0/0/1
ip address 10.1.1.9 30
quit
ip route-static 192.168.10.0 24 10.1.1.1
ip route-static 192.168.20.0 24 10.1.1.1
ip route-static 172.16.1.0 24 10.1.1.10

AR3:
system-view
interface GigabitEthernet 0/0/0
ip address 10.1.1.10 30
quit
interface LoopBack 0
ip address 172.16.1.254 24
quit
ip route-static 10.1.1.0 30 10.1.1.9
ip route-static 192.168.10.0 24 10.1.1.9
ip route-static 192.168.20.0 24 10.1.1.9
quit