Conguring BFD for VRRP is a three-step process:
1 Enable BFD globally. Refer to Enabling BFD Globally.
2 Establish VRRP BFD sessions with all VRRP-participating neighbors.
3 On the master router, establish a VRRP BFD sessions with the backup routers. Refer to Establishing Sessions with All VRRP
Neighbors.
Related Conguration Tasks
• Changing VRRP Session Parameters.
• Disabling BFD for VRRP.
Establishing Sessions with All VRRP Neighbors
BFD sessions can be established for all VRRP neighbors at once, or a session can be established with a particular neighbor.
Figure 16. Establishing Sessions with All VRRP Neighbors
To establish sessions with all VRRP neighbors, use the following command.
• Establish sessions with all VRRP neighbors.
INTERFACE mode
vrrp bfd all-neighbors
Establishing VRRP Sessions on VRRP Neighbors
The master router does not care about the state of the backup router, so it does not participate in any VRRP BFD sessions.
VRRP BFD sessions on the backup router cannot change to the UP state. Congure the master router to establish an individual VRRP
session the backup router.
Bidirectional Forwarding Detection (BFD)
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