Configuring BFD for an IPv4 static route

  1. Enable BFD support with the command bfd.
  2. Enable BFD on an IPv4 static route with the command ip route bfd.
  3. For most deployments, the default values for the following features do not need to be changed. If your deployment requires different settings, change the default values with the indicated command:
    BFD setting Default value Command to change it
    Sets the BFD detection multiplier on an interface. 5 bfd detect-multiplier
    Sets the minimum time interval between received BFD echo packets. 500 milliseconds bfd min-echo-receive-interval
    Sets the minimum time interval between transmitted BFD control packets on an interface. 3000 milliseconds bfd min-transmit-interval

    Configuring the timers to be too aggressive (for example, detect-multiplier of 1) can sometimes lead to BFD session flaps depending upon traffic conditions.

  4. Review BFD configuration settings with the commands show bfd.


Enabling BFD on a static IPv4 route.

switch# config
switch(config)# bfd
switch# interface 1/1/1
switch(config-if)# no shutdown
switch(config-if)# ip address
switch(config-if)# exit
switch(config)# ip route bfd