router-id <loopback address>
ospf area-interface-config-mode
!
router ospf <process ID number>
fast-reroute keep-all-paths
max-metric router-lsa on-startup 300
bfd all-interfaces
???? area <backbone area number> interface <interface>
area <backbone area number> interface <interface> network-type point-to-point
area <backbone area number> interface lo
area <backbone area number> interface lo passive
fast-reroute per-prefix ti-lfa area <backbone area number>
!
interface <interface>
ip address <interface address>/31
interface lo
ip address <loopback address>/32 secondary!
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