Administrator Guide

Example Configuration and Verification
The following example contains static routes for both default and nondefault VRFs.
Dell#sh run | grep bfd
bfd enable
ip route bfd prefix-list p4_le
ip route bfd vrf vrf1
ip route bfd vrf vrf2
ip route bfd vrf vrf1 prefix-list p4_le
The following example shows that sessions are created for static routes for the default VRF.
Dell#show bfd neighbors
* - Active session role
Ad Dn - Admin Down
B - BGP
C - CLI
I - ISIS
O - OSPF
O3 - OSPFv3
R - Static Route (RTM)
M - MPLS
V - VRRP
VT - Vxlan Tunnel
LocalAddr RemoteAddr Interface State Rx-int Tx-int Mult Clients
* 11.1.1.1 11.1.1.2 Te 1/1 Up 200 200 3 R
* 21.1.1.1 21.1.1.2 Vl 100 Up 200 200 3 R
* 31.1.1.1 31.1.1.2 Vl 101 Up 200 200 3 R
The following example shows that sessions are created for static routes for the nondefault VRFs.
Dell# show bfd vrf vrf2 neighbors
* - Active session role
Ad Dn - Admin Down
B - BGP
C - CLI
I - ISIS
O - OSPF
O3 - OSPFv3
R - Static Route (RTM)
M - MPLS
V - VRRP
VT - Vxlan Tunnel
LocalAddr RemoteAddr Interface State Rx-int Tx-int Mult VRF Clients
* 13.1.1.1 13.1.1.2 Te 1/2 Up 200 200 3 2 R
* 23.1.1.1 23.1.1.2 Vl 300 Up 200 200 3 2 R
* 33.1.1.1 33.1.1.2 Vl 301 Up 200 200 3 2 R
Establishing Static Route Sessions on Specific Neighbors
You can selectively enable BFD sessions on specific neighbors based on a destination prefix-list.
When you establish a BFD session using the ip route bfd command, all the next-hop neighbors in the static route become
part of the BFD session. Starting with Dell EMC Networking OS release 9.11.0.0, you can enable BFD sessions on specific next-
hop neighbors. You can specify the next-hop neighbors to be part of a BFD session by including them in a prefix-list.
Bidirectional Forwarding Detection (BFD)
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