Operation Manual – IPv4 RoutingH3C S5500-EI Series Ethernet Switches Chapter 3 OSPF Configuration3-35Note:With this task configured, when network changes are not frequent, SPF calculationapplies at the minimum-interval. If network changes become frequent, SPF calculationinterval is incremented by incremental-interval•2n-2 (n is the number of calculation times)each time a calculation occurs, up to the maximum-interval.3.7.5 Specifying the LSA Minimum Repeat Arrival IntervalAfter receiving the same LSA as the previously received LSA within the LSA minimumrepeat arrival interval, an interface discards the LSA.Follow these steps to configure the LSA minimum repeat arrival interval:To do… Use the command… RemarksEnter system view system-view —Enter OSPF view ospf [ process-id |router-id router-id ] * —Configure the LSAminimum repeat arrivalintervallsa-arrival-intervalintervalOptionalDefaults to 1000milliseconds.Note:The interval set with the lsa-arrival-interval command should be smaller or equal tothe interval set with the lsa-generation-interval command.3.7.6 Specifying the LSA Generation IntervalWith this feature configured, you can protect network resources and routers from beingover consumed due to frequent network changes.Follow these steps to configure the LSA generation interval:To do… Use the command… RemarksEnter system view system-view —Enter OSPF view ospf [ process-id |router-id router-id ] * Required