Users Guide

– metric-type metric-type: enter 1 for OSPFv3 external route type 1 OR 2 for OSPFv3 external route type 2.
– route-map map-name: enter a name of a congured route map.
– tag tag-value: The range is from 0 to 4294967295.
Conguring a Default Route
To generate a default external route into the OSPFv3 routing domain, congure Dell Networking OS.
To specify the information for the default route, use the following command.
• Specify the information for the default route.
CONF-IPV6-ROUTER-OSPF mode
default-information originate [always [metric metric-value] [metric-type type-value]]
[route-map map-name]
Congure the following required and optional parameters:
– always: indicate that default route information is always advertised.
– metric metric-value: The range is from 0 to 4294967295.
– metric-type metric-type: enter 1 for OSPFv3 external route type 1 OR 2 for OSPFv3 external route type 2.
– route-map map-name: enter a name of a congured route map.
Enabling OSPFv3 Graceful Restart
For more information about graceful restart, refer to Graceful Restart.
By default, OSPFv3 graceful restart is disabled and functions only in a helper role to help restarting neighbor routers in their graceful
restarts when it receives a Grace LSA.
To enable OSPFv3 graceful restart, enter the ipv6 router ospf process-id command to enter OSPFv3 conguration
mode. Then congure a grace period using the
graceful-restart grace-period command. The grace period is the time
that the OSPFv3 neighbors continue to advertise the restarting router as though it is fully adjacent. When you enable graceful
restart (restarting role), an OSPFv3 restarting expects its OSPFv3 neighbors to help when it restarts by not advertising the broken
link.
When you enable the helper-reject role on an interface using the ipv6 ospf graceful-restart helper-reject
command, you recongure OSPFv3 graceful restart to function in a restarting-only role. OSPFv3 does not participate in the graceful
restart of a neighbor.
NOTE: Enter the ipv6 ospf graceful-restart helper-reject command in Interface conguration mode.
• Enable OSPFv3 graceful restart globally by setting the grace period (in seconds).
CONF-IPV6-ROUTER-OSPF mode
graceful-restart grace-period seconds
The valid values are from 40 to 1800 seconds.
• Congure an OSPFv3 interface to not act on the Grace LSAs that it receives from a restarting OSPFv3 neighbor.
INTERFACE mode
ipv6 ospf graceful-restart helper-reject
• Specify the operating mode and type of events that trigger a graceful restart.
CONF-IPV6-ROUTER-OSPF mode
graceful-restart mode [planned-only | unplanned-only]
– Planned-only: the OSPFv3 router supports graceful restart only for planned restarts. A planned restart is when you
manually enter a redundancy force-failover rpm command to force the primary RPM over to the secondary RPM.
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Open Shortest Path First (OSPFv2 and OSPFv3)