BFD Service APIs for routing protocol process (RPD) programmability

You can use programmable RPD (PRPD) BFD APIs to add, update, and delete BFD sessions and subscribe to BFD events from outside applications. These APIs enable RPDs integration with software-defined networking (SDN) controllers and increase the flexibility of your network. PRPD BFD APIs support BFD Echo-Lite sessions in single-hop IPv4 and IPv6 modes. The following BFD Service APIs are supported: 

• Initialize
• SessionAdd
• SessionUpdate
• SessionDelete
• SessionDeleteAll
• Subscribe
• Unsubscribe

Use the [show bfd session extensive] command to view BFD sessions. BFD sessions added through PRPD BFD APIs are labeled with PRPD: in the client field. The is 1 for the first BFD session that is added, 2 for the second, and so on.