Open Shortest Path First (OSPFv2) | 397By default, FTOS implements an enhanced flooding procedure that dynamically and intelligentlydetermines when to optimize flooding. Whenever possible, the OSPF task attempts to reduce floodingoverhead by selectively flooding on a subset of the interfaces between two routers.When flood-2328 is enabled, this command configures FTOS to flood LSAs on all interfaces.graceful-restart helper-rejectSpecify the OSPF router to not act as a helper during graceful restart.Syntax graceful-restart helper-reject ip-addressTo return to default value, enter no graceful-restart helper-reject.ParametersDefaults Not ConfiguredCommand Modes ROUTER OSPFCommandHistoryip ospf auth-change-wait-timeOSPF provides a grace period while OSPF changes its interface authentication type. During the graceperiod, OSPF sends out packets with new and old authentication scheme till the grace period expires.Syntax ip ospf auth-change-wait-time secondsTo return to the default, use the no ip ospf auth-change-wait-time command.ParametersDefaults zero (0) secondsCommand Modes INTERFACECommandHistoryip-address Enter the OSPF router-id, in IP address format, of the restart router that willnot act as a helper during graceful restart.Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Moduleseconds Enter secondsRange: 0 to 300Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module