308 CHAPTER 28: OSPF CONFIGURATION
Triggering OSPF Graceful
Restart
Performing the following configuration on an OSPF router will trigger OSPF
Graceful Restart. Ensure that these routers are enabled with the following
capabilities first:
■ LLS (link local signaling)
■ OOB (out of band re-synchronization)
■ Opaque LSA advertisement
■ IETF GR capability
Follow these steps to trigger OSPF Graceful Restart:
Configure for which OSPF
neighbors the current router
can serve as a GR Helper
graceful-restart help
{ acl-number | prefix
prefix-list }
Optional
The router can server as a GR
Helper for any OSPF neighbor
by default.
To do… Use the command… Remarks
To do… Use the command… Remarks
Trigger OSPF Graceful Restart reset ospf [ process-id ]
process graceful-restart
Required
Available in user view
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