Administrator Guide

graceful-restart role
Specify the role for your OSPF router during graceful restart.
C9000 Series
Syntax
graceful-restart role [helper-only | restart-only]
To disable graceful restart role, use the no graceful-restart role command.
Parameters
role helper-only (OPTIONAL) Enter the keywords helper-only to specify the OSPF router is a
helper only during graceful restart.
role restart-only (OPTIONAL) Enter the keywords restart-only to specify the OSPF router is a
restart only during graceful-restart.
Defaults By default, OSPF routers are both helper and restart routers during a graceful restart.
Command Modes ROUTER OSPF
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
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.12.0 Introduced on the S4810.
7.8.1.0 Added support for Multi-Process OSPF. Added Restart and Helper roles
support on the S-Series.
7.7.1.0 Added Helper-Role support on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.1.1.1 Introduced on the E-Series.
ip ospf auth-change-wait-time
OSPF provides a grace period while OSPF changes its interface authentication type. During the grace period, OSPF sends out
packets with new and old authentication scheme until the grace period expires.
C9000 Series
Syntax
ip ospf auth-change-wait-time seconds
To return to the default, use the no ip ospf auth-change-wait-time command.
Parameters
seconds Enter the seconds. The range is from 0 to 300.
Defaults zero (0) seconds.
Command Modes INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
1174 Open Shortest Path First (OSPFv2 and OSPFv3)