Reference Guide

The following is a list of the FTOS version history for this command.
Version 9.1.(0.0) Introduced on the S4810 and Z9000.
Version 8.4.2.2 Introduced on the E-Series TeraScale.
Version 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.
ipv6 ospf area
Enable IPv6 OSPF on an interface.
Z-Series
Syntax
ipv6 ospf process id areaarea id
To disable OSPFv6 routing for an interface, use the no ipv6 ospf process-id area
area-id command.
Parameters
process-id Enter the process identification number.
area area-id Specify the OSPF area. The range is from 0 to 65535.
Defaults none
Command Modes INTERFACE
Command History
Version 9.1.(0.0) Introduced on the S4810 and Z9000.
Version 8.3.19.0 Introduced on the S4820T.
Version 7.4.1.0 Introduced on the E-Series and C-Series.
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