Administrator Guide

To view session parameters, use the show bfd neighbors detail command, as shown in the example in Displaying BFD
for BGP Information.
● Change parameters for all OSPFv3 sessions.
ROUTER-OSPFv3 mode
bfd all-neighbors interval milliseconds min_rx milliseconds multiplier value role [active
| passive]
● Change parameters for OSPFv3 sessions on a single interface.
INTERFACE mode
ipv6 ospf bfd all-neighbors interval milliseconds min_rx milliseconds multiplier value
role [active | passive]
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.
NOTE:
You can create upto a maximum of 200 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 configuration to establish sessions with all OSPFv3 neighbors in a specific VRF:
ipv6 router ospf 20 vrf vrf1
bfd all-neighbors
!
The following example shows the configuration to establish sessions with all OSPFv3 neighbors on a single interface in a specific
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
Bidirectional Forwarding Detection (BFD)
153