OSPF

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OSPF configuration in IOS-XR is very similar to IOS.

RP/0/0/CPU0:router(config)#router ospf 1 RP/0/0/CPU0:router(config-ospf)#router-id 172.31.0.2 RP/0/0/CPU0:router(config-ospf)#area 0 RP/0/0/CPU0:router(config-ospf-ar)#interface Loopback0 RP/0/0/CPU0:router(config-ospf-ar-if)#exit RP/0/0/CPU0:router(config-ospf-ar)#interface GigabitEthernet0/0/0/0 RP/0/0/CPU0:router(config-ospf-ar-if)#network point-to-point RP/0/0/CPU0:router(config-ospf-ar-if)#exit RP/0/0/CPU0:router(config-ospf-ar)#interface GigabitEthernet0/0/0/1 RP/0/0/CPU0:router(config-ospf-ar-if)#network point-to-point RP/0/0/CPU0:router(config-ospf-ar-if)#exit RP/0/0/CPU0:router(config-ospf-ar)#interface GigabitEthernet0/0/0/2 RP/0/0/CPU0:router(config-ospf-ar-if)#network point-to-point RP/0/0/CPU0:router(config-ospf-ar-if)#exit