ipv6 ospf graceful-restart helper-rejectConfigure an OSPFv3 interface to not act upon the Grace LSAs that it receives from a restarting OSPFv3 neighbor.E-Series TeraScale, Z-Series, S4810Syntax ipv6 ospf graceful-restart helper-rejectTo disable the helper-reject role, enter no ipv6 ospf graceful-restart helper-reject.Defaults The helper-reject role is not configured.Command Modes INTERFACECommand History Version 9.1.(0.0) Introduced on the S4810 and Z9000.Version 8.4.2.2 Introduced on E-Series TeraScale.UsageInformationBy default, OSPFv3 graceful restart is disabled and functions only in a helper role to helprestarting 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 itreceives 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-intervalSpecify the time interval between the hello packets sent on the interface.C-Series, E-Series, Z-Series, S4810Syntax ipv6 ospf hello—interval secondsTo return to the default time interval, enter no ipv6 ospf hello—interval.Parametersseconds Enter the time interval in seconds as the time between hello packets.Range: 1 to 65535 seconds.Defaults 10 seconds (Ethernet).Command Modes INTERFACECommand History Version 9.1.(0.0) Introduced on the S4810 and Z9000.Version 7.8.1.0 Added support for the C-Series.Version 7.4.1.0 Introduced on the E-Series.UsageInformationThe time interval between hello packets must be the same for routers in a network.1116
