Users Guide

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
!
The following example shows the conguration to establish sessions with all OSPFv3 neighbors on a single interface in a specic VRF:
interface vlan 102
ip vrf forwarding vrf vrf1
ipv6 ospf bfd all-neighbors
The following example shows the show bfd vrf neighbors command output for nondefault VRF:
Dell#show bfd vrf vrf1 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
* 10.1.1.1 10.1.1.2 Vl 100 Up 150 150 3
511 O
* 11.1.1.1 11.1.1.2 Vl 101 Up 150 150 3
511 O
* 12.1.1.1 12.1.1.2 Vl 102 Up 150 150 3
511 O
* 13.1.1.1 13.1.1.2 Vl 103 Up 150 150 3
511 O
* fe80::2a0:c9ff:fe00:2 fe80::3617:98ff:fe34:12 Vl 100 Up 150 150 3
511 O3
* fe80::2a0:c9ff:fe00:2 fe80::3617:98ff:fe34:12 Vl 101 Up 150 150 3
511 O3
* fe80::2a0:c9ff:fe00:2 fe80::3617:98ff:fe34:12 Vl 102 Up 150 150 3
511 O3
* fe80::2a0:c9ff:fe00:2 fe80::3617:98ff:fe34:12 Vl 103 Up 150 150 3
511 O3
Dell#
Disabling BFD for OSPFv3
If you disable BFD globally, all sessions are torn down and sessions on the remote system are placed in a Down state.
If you disable BFD on an interface, sessions on the interface are torn down and sessions on the remote system are placed in a Down state.
Disabling BFD does not trigger a change in BFD clients; a nal Admin Down packet is sent before the session is terminated.
To disable BFD sessions, use the following commands.
• Disable BFD sessions with all OSPFv3 neighbors.
ROUTER-OSPFv3 mode
no bfd all-neighbors
166
Bidirectional Forwarding Detection (BFD)