CLI Guide

Usage Command
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
Specify the time interval between the hello packets sent on the interface.
Syntax
ipv6 ospf hello—interval seconds
Parameters
seconds
Enter the time interval in seconds as the time between hello
packets. The range is from 1 to 65525 seconds.
Defaults 10 seconds (Ethernet).
Command Modes INTERFACE
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
The time interval between hello packets must be the same for routers in a network.
ipv6 ospf priority
To determine the Designated Router for the OSPFv3 network, set the priority of the interface.
Syntax
ipv6 ospf priority number
To return to the default time interval, use the no ipv6 ospf priority
command.
Open Shortest Path First (OSPFv2 and OSPFv3)
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