Base configuration for BFD

Updated: June 30, 2026

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Explains how to establish core BFD configuration and enable fast failure detection under routing protocols or static routes before applying protocol-specific settings.

To establish a BFD neighbor, complete at least one procedure to configure BFD under a dynamic routing protocol or with a static route.

Configure BFD over BGP

Procedure

Configure BFD for the BGP neighbor.

Example:

Router# configure
Router#(config)# router bgp 1200
Router#(config-bgp)# bfd multiplier 2
Router#(config-bgp)# bfd minimum-interval 1200
Router#(config-bgp)# neighbor 192.168.70.24
Router#(config-bgp-nbr)# remote-as 2
Router#(config-bgp-nbr)# bfd fast-detect
Router#(config-bgp-nbr)# commit
Router#(config-bgp-nbr)# end

Verify the configuration.

Example:

Router# show run router bgp

Configure BFD for OSPF

This example shows how to enable BFD for OSPF on a HundredGigE interface.

Procedure

Configure the BFD fast-detect feature on the OSPF interface.

Example:

Router# configure
Router#(config)# router ospf 0
Router#(config-ospf)# area 0
Router#(config-ospf-ar)# interface HundredGige 0/3/0/1
Router#(config-ospf-ar-if)# bfd fast-detect
Router#(config-ospf-ar-if)# commit
Router#(config-ospf-ar-if)# end

Verify the configuration.

Example:

Router# show run router ospf
router ospf 0
area 0
interface HundredGige 0/3/0/1
bfd fast-detect

Configure BFD on IPv4 static routes

Procedure

Configure the static route with BFD fast detection in IPv4 address family configuration mode..

Example:

Router# configure
Router(config)# router static
Router(config-static)# address-family ipv4 unicast
Router(config-static)# 10.2.2.0/24 10.3.3.3 bfd fast-detect
Router(config-static)# commit

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