log stdout
interface lo
 ip address 192.0.2.1/32
!
interface r1-eth0
 ip address 172.31.10.1/24
!
interface r1-eth1
 ip address 172.31.0.1/24
 mpls enable
!
interface r1-eth2
 ip address 172.31.2.1/24
 mpls enable
!
interface r1-eth3
 ip address 172.31.11.1/24
 mpls enable
!
interface r1-eth4
 ip address 172.31.8.1/24
 mpls enable
!