Administrator Guide

Related Configuration Tasks
• Changing OSPFv3 Session Parameters
• Disabling BFD for OSPFv3
Establishing Sessions with OSPFv3 Neighbors
You can establish BFD sessions with all OSPFv3 neighbors at once or with all neighbors out of a specific interface. Sessions are only
established when the OSPFv3 adjacency is in the Full state.
To establish BFD with all OSPFv3 neighbors or with OSPFv3 neighbors on a single interface, use the following commands.
• Establish sessions with all OSPFv3 neighbors.
ROUTER-OSPFv3 mode
bfd all-neighbors
• 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 Gi 1/1 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 Te 1/1 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 configure BFD in a nondefault VRF, use the following procedure:
• Enable BFD globally.
CONFIGURATION mode
bfd enable
• Establish sessions with all OSPFv3 neighbors in a specific VRF.
ROUTER-OSPFv3 mode
bfd all-neighbors
• Establish sessions with the OSPFv3 neighbors on a single interface in a specific VRF.
INTERFACE mode
ipv6 ospf bfd all-neighbors
• To disable BFD on a specific 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 specific interface.
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Bidirectional Forwarding Detection (BFD)