Bidirectional Forwarding Detection (BFD) | 165
Configuring BFD for VRRP
BFD for VRRP is only supported on platforms: e c
When using BFD with VRRP, the VRRP protocol registers with the BFD manager on the RPM. BFD
sessions are established with all neighboring interfaces participating in VRRP. If a neighboring interface
fails, the BFD agent on the line card notifies the BFD manager, which in turn notifies the VRRP protocol
that a link state change occurred.
Configuring 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 configuration tasks
• Changing VRRP session parameters.
• Establishing sessions with OSPF neighbors.
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.
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