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Keep the GR Restarter forwarding entries stable during reboot.
Establish all adjacencieis and obtain complete topology information after reboot.
After reboot, the GR Restarter sends a Grace-LSA to tell its neighbors that it performs a GR. Upon
receiving the Grace-LSA, the neighbors with the GR Helper capability enter the helper mode (and are
thus called GR Helpers). Then, the GR Restarter retrieves its adjacencies and LSDB with the help of the
GR Helpers. Thus, the normal data forwarding is ensured.
Configuring GR Restarter
You can configure the GR Restarter capability on a GR Restarter.
Follow these steps to configure GR Restarter:
To do...
Enter system view
Enter OSPFv3 view
Enable the GR capability
Configure the GR interval
Configuring GR Helper
You can configure the GR Helper capability on a GR Helper.
Follow these steps to configure GR Helper
To do...
Enter system view
Enter OSPFv3 view
Enable the GR Helper
capability
Enable strict LSA checking
Use the command...
system-view
ospfv3 [ process-id ]
graceful-restart enable
graceful-restart interval
interval-value
Use the command...
system-view
ospfv3 [ process-id ]
graceful-restart helper enable
graceful-restart helper
strict-lsa-checking
1-14
Remarks
—
—
Required
Disabled by default.
Optional
120 seconds by default.
Remarks
—
—
Optional
Enabled by default.
Optional
Disabled by default.
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Troubleshooting
