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graceful-restart mode
Specify the type of events that trigger an OSPFv3 graceful restart.
Z9500
Syntax
graceful-restart mode {planned-only | unplanned-only}
To disable graceful restart mode, enter no graceful-restart mode.
Parameters
planned-only (OPTIONAL) Enter the keywords planned-only to indicate
graceful restart is supported in a planned restart condition
only.
unplanned-
only
(OPTIONAL) Enter the keywords unplanned-only to
indicate graceful restart is supported in an unplanned restart
condition only.
Defaults OSPFv3 graceful restart supports both planned and unplanned failures.
Command
Modes
ROUTER OSPFv3
Command
History
This guide is platform-specific. For command information about other platforms,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.2(1.0) Introduced on the Z9500.
9.1.(0.0) Introduced on the S4810 and Z9000.
8.4.2.2 Introduced on the E-Series TeraScale.
8.3.19.0 Introduced on the S4820T.
Usage
Information
OSPFv3 graceful restart supports planned-only and/or unplanned-only restarts.
The default is support for both planned and unplanned restarts.
• A planned restart occurs when you enter the redundancy force-failover
rpm command to force the primary RPM to switch to the backup RPM. During a
planned restart, OSPF sends out a Type-11 Grace LSA before the system
switches over to the backup RPM.
• An unplanned restart occurs when an unplanned event causes the active RPM
to switch to the backup RPM, such as when an active process crashes, the
active RPM is removed, or a power failure happens. During an unplanned
restart, OSPF sends out a Grace LSA when the backup RPM comes online.
By default, both planned and unplanned restarts trigger an OSPFv3 graceful restart.
Selecting one or the other mode restricts OSPFv3 to the single selected mode.
Open Shortest Path First (OSPFv2 and OSPFv3)
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