Concept Guide

R1(conf)#do show bfd neighbors
* - Active session role
Ad Dn - Admin Down
C - CLI
I - ISIS
O - OSPF
R - Static Route (RTM)
LocalAddr RemoteAddr Interface State Rx-int Tx-int Mult Clients
2.2.2.1 2.2.2.2 Te 4/24 Up 200 200 4 R
To view detailed session information, use the show bfd neighbors detail command.
Establishing Sessions for Static Routes for Nondefault VRF
You can also create nondefault VRFs and establish sessions for all neighbors that are the next hop of a static route.
To establish a BFD session for nondefault VRFs, use the following command.
• Establish BFD sessions for all neighbors that are the next hop of a static route.
CONFIGURATION mode
ip route bfd vrf vrf-name [prefix-list prefix-list-name] [interval interval min_rx min_rx
multiplier value role {active | passive}]
Example Conguration and Verication
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
Bidirectional Forwarding Detection (BFD)
157