Command Line Reference Guide

718 | Open Shortest Path First (OSPFv2 and OSPFv3)
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Defaults
Support for both planned and unplanned failures.
Command Modes
ROUTER OSPF
Command
History
graceful-restart role
c e s
Specify the role for your OSPF router during graceful restart.
Syntax
graceful-restart role [helper-only | restart-only]
To disable graceful restart role, enter no graceful-restart role.
Parameters
Defaults
OSPF routers are, by default, both helper and restart routers during a graceful restart.
Command Modes
ROUTER OSPF
Command
History
ip ospf auth-change-wait-time
c e s
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 till the grace period expires.
Syntax
ip ospf auth-change-wait-time seconds
To return to the default, enter no ip ospf auth-change-wait-time.
Parameters
Defaults
zero (0) seconds
Command Modes
INTERFACE
Version 8.3.5.0 Introduced on S55
Version 7.8.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.1.1.1 Introduced on E-Series
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.
Version 8.3.5.0 Introduced on S55
Version 7.8.1.0 Introduced support for Multi-Process OSPF.
Restart and helper roles supported on S-Series
Version 7.7.1 Helper-Role supported on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.1.1.1 Introduced on E-Series
seconds
Enter seconds
Range: 0 to 300