interface Loopback0
 ip address 10.255.255.22 255.255.255.255
 ip ospf 1000 area 0
 isis tag 1

mpls label range 22000 22999

router ospf 1000
 router-id 10.255.255.22
 log-adjacency-changes detail
 auto-cost reference-bandwidth 1000
 prefix-suppression
 passive-interface Loopback0
 mpls ldp autoconfig
 exit

router isis CORE
 net 49.0000.0000.0000.0022.00
 is-type level-2-only
 advertise passive-only
 metric-style wide
 log-adjacency-changes all
 passive-interface Loopback0
 mpls ldp autoconfig level-2
 exit

mpls ldp router-id Loopback0 


interface GigabitEthernet1
 ip address 10.3.22.22 255.255.255.0
 ip router isis CORE
 no shutdown
 negotiation auto
 no mop enabled
 no mop sysid
 isis network point-to-point 
 isis metric 1000 level-1
 isis metric 1000 level-2


interface GigabitEthernet2
 ip address 10.9.22.22 255.255.255.0
 ip ospf network point-to-point
 ip ospf 1000 area 0
 no shutdown
 negotiation auto
 no mop enabled
 no mop sysid

interface GigabitEthernet3
 ip address 10.4.22.22 255.255.255.0
 ip router isis CORE
 no shutdown
 negotiation auto
 no mop enabled
 no mop sysid
 isis network point-to-point 
 isis metric 1000 level-1
 isis metric 1000 level-2

interface GigabitEthernet4
 ip address 10.10.22.22 255.255.255.0
 ip ospf network point-to-point
 ip ospf 1000 area 0
 no shutdown
 negotiation auto
 no mop enabled
 no mop sysid