Users Guide

An SPI value must be unique to one IPsec security policy (authentication or encryption) on the router. Congure
the same encryption policy (same SPI and key) on each OSPFv3 interface in a link.
ipv6 ospf graceful-restart helper-reject
Congure an OSPFv3 interface to not act upon the Grace LSAs that it receives from a restarting OSPFv3 neighbor.
Syntax
ipv6 ospf graceful-restart helper-reject
To disable the helper-reject role, use the no ipv6 ospf graceful-restart helper-reject command.
Defaults The helper-reject role is not congured.
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 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 congured 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 recongure 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.
986 Open Shortest Path First (OSPFv2 and OSPFv3)