Configure BFD for OSPFv3 Globally

BFD for OSPFv3 can be configured globally on interfaces where BFD is enabled.

Before you begin

Enable BFD on OSPFv3 interfaces. For more information, see Enable BFD on an OSPFv3-enabled Interface

Access global configuration mode.
```
device# configure terminal
```
Access OSPFv3 router configuration mode.
```
device(config)# ipv6 router ospf
```

Enable BFD globally.

device(config-ipv6-router-ospf-vrf-default-vrf)# bfd

Specify the interval after which routes are withdrawn after a BFD session is declared down.
```
device(config-ipv6-router-ospf-vrf-default-vrf)# bfd holdover-interval 20  
```
This example specifies a holdover interval of 20 seconds.