Configure OSPFv3 Graceful Restart Helper

Graceful restart helper is enabled by default when you start OSPFv3. You can disable and re-enable it.

1. Access global configuration mode.
   

   device# configure terminal

2. Enter IPv6 OSPF router configuration mode.
   

   device(config)# ipv6 router ospf

3. To disable graceful restart helper, run the following command.
   

   device(config-ipv6-router-ospf-vrf-default-vrf)# no graceful-restart helper

4. To re-enable graceful restart, run the following command.
   

   device(config-ipv6-router-ospf-vrf-default-vrf)# graceful-restart helper