Concept Guide
Congure BFD for VRRP
When using BFD with VRRP, the VRRP protocol registers with the BFD manager on the route processor module (RPM). BFD sessions are
established with all neighboring interfaces participating in VRRP. If a neighboring interface fails, the BFD agent on the line card noties the
BFD manager, which in turn noties the VRRP protocol that a link state change occurred.
Conguring 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 Conguration 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
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Bidirectional Forwarding Detection (BFD)