Concept Guide

• Establish sessions with OSPFv3 neighbors on a single interface.
INTERFACE mode
ipv6 ospf bfd all-neighbors
To view the established sessions, use the show bfd neighbors command.
The following example shows the show bfd neighbors command output for default VRF.
DellEMC#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
* 1.1.1.1 1.1.1.2 Te 1/10 Up 200 200 3 O
* 2.1.1.1 2.1.1.2 Vl 2 Up 200 200 3 O
* fe80::2a0:c9ff:fe00:2 fe80::3617:98ff:fe34:12 Fo 1/49 Up 200 200 3 O3
* fe80::2a0:c9ff:fe00:2 fe80::3617:98ff:fe34:12 Vl 2 Up 200 200 3 O3
DellEMC#
Establishing BFD Sessions with OSPFv3 Neighbors for nondefault VRFs
To congure BFD in a nondefault VRF, use the following procedure:
• Enable BFD globally.
CONFIGURATION mode
bfd enable
• Establish sessions with all OSPFv3 neighbors in a specic VRF.
ROUTER-OSPFv3 mode
bfd all-neighbors
• Establish sessions with the OSPFv3 neighbors on a single interface in a specic VRF.
INTERFACE mode
ipv6 ospf bfd all-neighbors
• To disable BFD on a specic OSPFv3 enabled interface, use the ipv6 ospf bfd all-neighbors disable command. You can
also use the
no bfd enable command to disable BFD on a specic interface.
NOTE
: You can create upto a maximum of 128 BFD sessions (combination of OSPFv2 and OSPFv3 with a timer of 300*300*3)
for both default and nondefault VRFs.
The following example shows the conguration to establish sessions with all OSPFv3 neighbors in a specic VRF:
ipv6 router ospf 20 vrf vrf1
bfd all-neighbors
!
168
Bidirectional Forwarding Detection (BFD)