BFD features
OSPF, VRRP, and BGP are clients of BFD.
Supported:
- 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