Prerequisites for Bidirectional Forwarding Detection
Prerequisites for BFD include:
The switch’s feature set is IP Base or higher. The IP Base feature set supports only Enhanced Interior Gateway Routing Protocol (EIGRP) stub routing, without BFD. The IP service feature set supports EIGRP with BFD.
IP routing must be enabled on all participating switches
Before BFD is deployed, configure one of the IP routing protocols supported by BFD on the switches. Also, implement fast convergence for the routing protocol that you plan to use.