Command Line Reference Guide

1084 | Open Shortest Path First (OSPFv2 and OSPFv3)
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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.
When configured in a helper-reject role, an OSPFv3 router ignores the Grace LSAs that it receives
from a restarting OSPFv3 neighbor.
The graceful-restart role command is not supported in OSPFv3. When you enable the helper-reject
role on an interface, you reconfigure an OSPFv3 router to function in a “restarting-only” role.
ipv6 ospf hello-interval
c e
Specify the time interval between the hello packets sent on the interface.
Syntax
ipv6 ospf hello-interval seconds
To return to the default value, enter no ipv6 ospf hello-interval.
Parameters
Defaults
As above
Command Modes
INTERFACE
Command
History
Usage
Information
The time interval between hello packets must be the same for routers in a network.
Related
Commands
ipv6 ospf priority
c e
Set the priority of the interface to determine the Designated Router for the OSPFv3 network.
Syntax
ipv6 ospf priority number
To return to the default value, use the no ipv6 ospf priority command.
Parameters
Defaults
1
Command Modes
INTERFACE
seconds
Enter a the time interval in seconds as the time between hello packets.
Range: 1 to 65535.
Default: 10 seconds (Ethernet)
Version 7.8.1.0 Added support for C-Series
Version 7.4.1.0 Introduced
ipv6 ospf dead-interval Set the time interval since the last hello-packet was received from a router.
number
Enter a number as the priority.
Range: 0 to 255.
Default: 1