Dell Command Line Reference Guide for the S4048–ON System 9.14.2.4

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graceful-restart grace-period

Specifies the time duration, in seconds, that the router’s neighbors continue to advertise the router as fully adjacent regardless of the synchronization state during a graceful restart.

NOTE: This command enables OSPFv2 graceful restart globally by setting the grace period (in seconds) that an OSPFv2 router’s neighbors continues to advertise the router as adjacent during a graceful restart.

S4048–ON

Syntax
graceful-restart grace-period seconds

To disable the grace period, use the no graceful-restart grace-period command.

Parameters
seconds
Time duration, in seconds, that specifies the duration of the restart process before OSPF terminates the process. The range is from 40 to 1800 seconds.
Defaults
Not Configured
Command Modes
ROUTER OSPF
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.10(0.1)
Introduced on the S6010-ON and S4048T-ON.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S6100-ON.
9.8(2.0)
Introduced on the S3100 series.
9.8(1.0)
Introduced on the Z9100-ON.
9.8(0.0P5)
Introduced on the S4048-ON.
9.8(0.0P2)
Introduced on the S3048-ON.
9.7(0.0)
Introduced on the S6000-ON.
9.2(1.0)
Introduced on the Z9500.
9.0.2.0
Introduced on the S6000.
8.3.19.0
Introduced on the S4820T.
8.3.11.1
Introduced on the Z9000.
8.3.7.0
Introduced on the S4810.
7.8.1.0
Introduced on the S-Series. Added support for Multi-Process OSPF.
7.5.1.0
Introduced on the C-Series.
pre- 6.1.1.1
Introduced on the E-Series.
Usage Information
The Helper mode is enabled by default on the device. To enable the restart mode also on the device, you must configure the grace period using this command. After you enable restart mode the router advertises the neighbor as fully adjacent during a restart.

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