Connectivity Guide

2. Configure static routes on both routers on the system (either local or remote). Configure static route in such a way that the
next-hop interfaces point to each other.
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
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
Changing IPv4 Static Route Session Parameters
BFD sessions are configured with default intervals and a default role.
The parameters you can configure are: Desired TX Interval, Required Min RX Interval, Detection Multiplier, and 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 parameters for all static route sessions.
ip route bfd interval milliseconds min_rx milliseconds multiplier value role [active |
passive]
CONFIGURATION Mode
NOTE:
By default, OSPF uses the following BFD parameters for it's neighbors: min_tx = 200 msec, min_rx = 200 msec,
multiplier = 3, role = active. The values are configured in milliseconds
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
Establishing BFD Sessions for IPv6 Static Routes
To establish a BFD session for IPv6 static routes, use the following command.
Establish BFD sessions for all neighbors that are the next hop of a static route.
ipv6 route bfd [interval interval min_rx min_rx multiplier value role {active | passive}]
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