interface gigabitethernet 1/0/1
mtu 9500
ip firewall disable
ip address 10.20.0.2/30
ip ospf instance 1
ip ospf
exit
interface gigabitethernet 1/0/2
mtu 9500
ip firewall disable
ip address 10.21.0.1/30
ip ospf instance 1
ip ospf
exit
interface gigabitethernet 1/0/3
mtu 9500
ip firewall disable
ip address 10.31.0.1/30
ip ospf instance 1
ip ospf
exit
interface loopback 1
ip address 10.10.0.2/32
ip ospf instance 1
ip ospf
exit
mpls
ldp
router-id 10.10.0.2
address-family ipv4
interface gigabitethernet 1/0/1
exit
interface gigabitethernet 1/0/2
exit
interface gigabitethernet 1/0/3
exit
exit
enable
exit
forwarding interface gigabitethernet 1/0/1
forwarding interface gigabitethernet 1/0/2
forwarding interface gigabitethernet 1/0/3
exit