Users Guide

3. Configure BFD for static route using the ip route bfd command.
Establishing BFD Sessions for IPv4 Static Routes
Sessions are established for all neighbors that are the next hop of a static route.
To establish a BFD session, use the following command.
Establish BFD sessions for all neighbors that are the next hop of a static route.
ip route bfd [interval interval min_rx min_rx multiplier value role {active | passive}]
CONFIGURATION Mode
Enter the time interval for sending and receiving BFD control packets from 50 to 1000.
Establishing BFD Sessions for IPv4 Static Routes in a non-default VRF
instance
To establish a BFD session for IPv4 static routes in a non-default VRF instance, use the following command.
Establish BFD sessions for all neighbors that are the next hop of a static route.
ip route bfd [vrf vrf-name] [interval interval min_rx min_rx multiplier value role {active
| passive}]
CONFIGURATION Mode
Enter the time interval for sending and receiving BFD control packets from 50 to 1000.
Changing IPv4 static route session parameters
Configure BFD sessions with default intervals and a default role.
Configure the following for all static routes:
● Desired TX Interval
● Required Min RX Interval
● Detection Multiplier
● system role
These parameters are configured for all static routes. If you change a parameter, the change affects all sessions for static
routes. To change parameters for static route sessions, use the following command.
● Change the parameters for all static route sessions in CONFIGURATION mode.
ip route bfd interval milliseconds min_rx milliseconds multiplier value role [active |
passive]
Enter the time interval for sending and receiving BFD control packets; from 50 to 1000.
NOTE:
By default, OSPF uses the following BFD parameters for its neighbors: min_tx = 200 msec, min_rx = 200 msec,
multiplier = 3, role = active.
Disabling BFD for IPv4 Static Routes
If you disable BFD, all static route BFD sessions are torn down.
A final Admin Down packet is sent to all neighbors on the remote systems, and those neighbors change to the Down state. To
disable BFD for IPv4 static routes, use the following command.
Disable BFD for static routes.
no ip route bfd
CONFIGURATION Mode
Layer 3
775