BFD features

OSPF, VRRP, and BGP are clients of BFD.


  • BFD v1
  • Asynchronous mode + echo
  • Single hop
  • IPv4
  • RoP, SVI, and LAG interfaces

Not supported:

  • MIB support
  • IPv6
  • Demand mode
  • Micro-BFD
  • Authentication
  • Multi-hop configurations are not supported. (BFD works only for directly connected neighbors. BFD neighbors must be no more than one IP hop away.)

  • Loopback, passive, and virtual link interfaces