BFD sessions can be associated with an unnumbered IPv4 interface to monitor the liveliness of the connection for IP and MPLS routing protocols, when routing protocol adjacencies and static routes are configured to use this function. When a BFD session is associated with an unnumbered interface as the local anchor point, the BFD parameters are taken from the BFD configuration under the unnumbered interface context. If the BFD parameters are not configured within the unnumbered interface context, then BFD sessions are not attempted. All BFD sessions associated with an unnumbered interface are automatically run on the FP complex associated with the CPM.