BFD is a most useful feature of IOS, and IMHO, a much unloved feature. I notice that latest releases of IOS now have BFD for static routing, but more importantly now supports HSRP
standby bfd
Example:
Router(config-if)# standby bfd
(Optional) Enables HSRP support for BFD on the interface
standby bfd all-interfacesExample:
Router(config)# standby bfd all-interfaces
(Optional) Enables HSRP support for BFD on all interfaces.
Bidirectional Forwarding Detection [Cisco IOS Software] – Cisco Systems: “”



