Cisco IOS XR BFD for OSPF configuration Example

Cisco IOS XR BFD for OSPF configuration Example

In Cisco IOS XR software, BFD is configured under a dynamic routing protocol, such as an OSPF or BGP. This is not the case for BFD in Cisco IOS software,where BFD is only configured on an interface.

In Cisco IOS XR software, a BFD neighbor is established through routing. The Cisco IOS bfd neighbor interface configuration command is not supported in Cisco IOS XR software.Hardware based difference and capabilities affect the bfd time interval and mode.


Router-1
router ospf 1
 router-id 100.100.100.1
 bfd minimum-interval 30
 bfd multiplier 2
 area 0
  interface Loopback0
   passive enable
  !
  interface GigabitEthernet0/1/0/5
   bfd fast-detect
   network point-to-point

Router-2
router ospf 1
 router-id 100.100.100.2
 bfd minimum-interval 30
 bfd multiplier 2
 area 0
  interface Loopback0
   passive enable
  !
  interface GigabitEthernet0/1/0/5
   bfd fast-detect
   network point-to-point

 show bfd session
Interface            Dest Addr           Local det time(int*mult)      State
                                                   Echo            Async
-------------------- --------------- ---------------- ---------------- ---------
Gi0/1/0/5            192.168.2.1     60ms(30ms*2)     6s(2s*3)         UP