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672 Configuring IPv6
Figure 10-31. NSF OSPFv3 Summary
• Support Mode — Enables or disables OSPFv3 to perform graceful restarts. The following options are
available:
– Planned—OSPFv3 will perform a graceful restart for planned restarts. A planned restart is a
failover initiated by the administrator (see
"Enabling and Disabling NSF
" on page 258).
– Always—OSPFv3 will perform a graceful restart for all planned and unplanned warm restart
events.
– Disable—OSPFv3 will not perform graceful restarts.
• Restart Interval — The grace period during which a neighboring router will be in the helper state after
receiving notice that the management unit is performing a graceful restart.
• Restart Status — Displays the restart status of OSPFv3 Helper feature. The possible values are:
–Not Restarting
–Planned Restart
– Unplanned Restart
• Restart Age (secs) — Displays the ammount of time since the last restart occured.
• Restart Exit Reason — Displays how the master unit on the stack last started up. The possible values
are:
– Not Attempted—Graceful restart has not been attempted.
– In Progress—Restart is in progress.
– Completed—The previous gracefull restart completed successfully.
– Timed Out—The previous graceful restart timed out.
– Topology Changed—The previous graceful restart terminated prematurely because of a topology
change.
If you change the Support Mode, click Submit to save your change.