Re-enabling OSPFv2 graceful restart

Note

GR is mutually exclusive to NSR.

Enter the configure terminal command to access global configuration mode.
```
device# configure terminal
```
Enter the router ospf command to enter OSPF router configuration mode and enable OSPFv2 globally.
```
device(config)# router ospf
```
Enter the graceful restart command to re-enable GR on the device.
```
device(config-router-ospf-vrf-default-vrf)# graceful-restart
```
Enter the graceful restart command with the restart-time parameter and specify a value to change the maximum restart wait time from the default value of 120 seconds.
```
device(config-router-ospf-vrf-default-vrf)# graceful-restart restart-time 240
```

Example

The following example re-enables GR and changes the maximum restart wait time from the default value of 120 seconds to 240 seconds.

device# configure terminal
device(config)# router ospf 
device(config-router-ospf-vrf-default-vrf)# graceful-restart
device(config-router-ospf-vrf-default-vrf)# graceful-restart restart-time 240