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Configuring Graceful Restart Options for OSPF and OSPFv3

To configure the duration of the OSPF/OSPFv3 graceful restart period, include the restart-duration statement at the [edit protocols (ospf | ospf3) graceful-restart] hierarchy level. To specify the length of time for which the router notifies helper routers that it has completed graceful restart, include the notify-duration at the [edit protocols (ospf | ospf3) graceful-restart] hierarchy level. Strict OSPF link-state advertisement (LSA) checking results in the termination of graceful restart by a helping router. To disable strict LSA checking, include the no-strict-lsa-checking statement at the [edit protocols (ospf | ospf3) graceful-restart] hierarchy level.



[edit]
protocols {


ospf {



graceful-restart {

disable;

helper-disable;

no-strict-lsa-checking


notify-duration seconds;

restart-duration seconds;
}


}


}

To disable OSPF/OSPFv3 graceful restart, include the disable statement at the [edit protocols (ospf | ospf3) graceful-restart] hierarchy level. To disable the OSPF helper capability, include the helper-disable statement at the [edit protocols (ospf | ospf3) graceful-restart] hierarchy level.

Note: You can also track graceful restart events with the traceoptions statement at the [edit protocols (ospf | ospf3)] hierarchy level. For more information, see Tracking Graceful Restart Events.

Note: You cannot enable OSPFv3 graceful restart between a routing platform running JUNOS Release 7.5 and earlier and a routing platform running JUNOS 7.6 or later. As a workaround, make sure both routing platforms use the same JUNOS software version.

Note: If you configure BFD and graceful restart for OSPF, graceful restart might not work as expected.

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