Users Guide
• 2 = Type 2 external route
route-map map-
name
(OPTIONAL) Enter the keywords route-map then the name of an established 
route map.
Defaults Disabled.
Command Modes ROUTER OSPFv3
Command History
This guide is platform-specic. 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
9.1.(0.0) Introduced on the S4810 and Z9000.
8.3.19.0 Introduced on the S4820T.
7.8.1.0 Added support for C-Series.
7.4.1.0 Introduced on the E-Series.
Related Commands redistribute — redistributes routes from other routing protocols into OSPFv3.
graceful-restart grace-period
Enable OSPFv3 graceful restart globally by setting the grace period (in seconds) that an OSPFv3 router’s neighbors continues to 
advertise the router as adjacent during a graceful restart.
S4820T
Syntax
graceful-restart grace-period seconds
To disable OSPFv3 graceful restart, enter no graceful-restart grace-period.
Parameters
seconds Time duration, in seconds, that species the duration of the restart process before 
OSPFv3 terminates the process. The range is from 40 to 1800 seconds.
Defaults OSPFv3 graceful restart is disabled and functions in a helper-only role.
Command Modes ROUTER OSPFv3
Command History
This guide is platform-specic. 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
9.1.(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
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.
1128
Open Shortest Path First (OSPFv2 and OSPFv3)










