!
int r4-eth0
 ip address 10.0.2.2/24
 ip router isis n4
 isis circuit-type level-2-only
 isis fast-reroute lfa level-2
 isis network point-to-point
 isis hello-interval 1
 isis hello-multiplier 10
!
int r4-eth1
 ip address 10.0.3.2/24
 ip router isis n4
 isis circuit-type level-2-only
 isis fast-reroute lfa level-2
 isis metric level-1 10
 isis metric level-2 100
 isis network point-to-point
 isis hello-interval 1
 isis hello-multiplier 10
!
int r4-eth2
 ip address 10.0.4.1/24
 ip router isis n4
 isis circuit-type level-2-only
 isis fast-reroute lfa level-2
 isis network point-to-point
 isis hello-interval 1
 isis hello-multiplier 10
!
router bgp 65002
 no bgp ebgp-requires-policy
 neighbor 10.0.2.1 remote-as internal
 neighbor 10.0.3.1 remote-as internal
 neighbor 10.0.4.2 remote-as external
!
router isis n4
 is-type level-2-only
 net 49.0001.0000.0000.0004.00
 lsp-mtu 1440
exit
