Configure BFD for OSPFv3 Globally

Enable BFD on OSPFv3 interfaces. For more information, see Enable BFD on an OSPFv3-enabled Interface
  1. Access global configuration mode.
    device# configure terminal
  2. Access OSPFv3 router configuration mode.
    device(config)# ipv6 router ospf
  3. Enable BFD globally.
    device(config-ipv6-router-ospf-vrf-default-vrf)# bfd 
  4. Specify the interval after which routes are withdrawn after a BFD session is declared down.
    device(config-ipv6-router-ospf-vrf-default-vrf)# bfd holdover-interval 20  
    This example specifies a holdover interval of 20 seconds.