Reference Guide

156 | Bidirectional Forwarding Detection (BFD)
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Configuring BFD for OSPF is a two-step process:
1. Enabling BFD globally.
2. Establishing sessions with OSPF neighbors.
Related configuration tasks
• Changing OSPF session parameters.
• Disabling BFD for OSPF.
Enabling BFD globally
BFD must be enabled globally on both routers.
To enable BFD globally:
Verify that BFD is enabled globally using the command
show running bfd, as shown in the example below.
Figure 8-4. Enabling BFD Globally
Establishing sessions with OSPF neighbors
BFD sessions can be established with all OSPF neighbors at once or sessions can be established with all
neighbors out of a specific interface. Sessions are only established when the OSPF adjacency is in the full
state.
Step Task Command Syntax Command Mode
1 Enable BFD globally. bfd enable CONFIGURATION
FTOS(conf)#bfd ?
enable Enable BFD protocol
protocol-liveness Enable BFD protocol-liveness
FTOS(conf)#bfd enable
FTOS(conf)#do show running-config bfd
!
bfd enable
FTOS(conf)#
BFD Enabled Globally