Concept Guide

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:
DellEMC#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
DellEMC#
Changing OSPFv3 Session Parameters
Congure BFD sessions with default intervals and a default role.
The parameters that you can congure are: desired tx interval, required min rx interval, detection multiplier,
and system role. Congure these parameters for all OSPFv3 sessions or all OSPFv3 sessions on a particular interface. If you change a
parameter globally, the change aects all OSPFv3 neighbors sessions. If you change a parameter at the interface level, the change aects
all OSPFv3 sessions on that interface.
To change parameters for all OSPFv3 sessions or for OSPFv3 sessions on a single interface, use the following commands.
To view session parameters, use the show bfd neighbors detail command.
• Change parameters for all OSPFv3 sessions.
ROUTER-OSPFv3 mode
bfd all-neighbors interval milliseconds min_rx milliseconds multiplier value role [active |
passive]
170
Bidirectional Forwarding Detection (BFD)