Lenovo Flex System Fabric CN4093 User Manual

472 CN4093 Application Guide for N/OS 8.4
OSPFv2 Implementation in Enterprise NOS
EnterpriseNOSsupportsasingleinstanceofOSPFandupto2Kroutesonthe
network.ThefollowingsectionsdescribeOSPFimplementationinEnterpriseNOS:
 “ConfigurableParameters”onpage 472
 “DefiningAreas”onpage 473
 “InterfaceCost”onpage 475
 “ElectingtheDesignatedRouterandBackup”onpage 475
 “SummarizingRoutes”onpage 475
 “DefaultRoutes”onpage 476
 “VirtualLinks”onpage 477
 “RouterID”onpage 477
 “Authentication”onpage 478
Configurable Parameters
InEnterpriseNOS,OSPFparameterscanbeconfiguredthroughtheCommand
LineInterfaces(CLI/ISCLI),Browser‐BasedInterface(BBI),orthroughSNMP.For
moreinformation,see“SwitchAdministration”onpage 29.”
TheCLIsupportsthefollowingparameters:interfaceoutputcost,interface
priority,deadandhellointervals,retransmissioninterval,andinterfacetransmit
delay.
In
additiontotheprecedingparameters,youcanspecifythefollowing:
 ShortestPathFirst(SPF)interval—Timeintervalbetweensuccessivecalculations
oftheshortestpathtreeusingtheDijkstra’salgorithm.
 Stubareametric—Astubareacanbeconfiguredtosendanumericmetricvalue
suchthatallroutesreceivedviathatstubareacarrytheconfiguredmetricto
potentiallyinfluenceroutingdecisions.
 Defaultroutes—Defaultrouteswithweightmetricscanbemanuallyinjected
intotransitareas.Thishelpsestablishapreferredroutewhenmultiplerouting
devicesexistbetweentwoareas.Italsohelpsroutetraffictoexternalnetworks.
 Passive—Whenenabled,theinterfacesendsLSAstoupstreamdevices,butdoes
nototherwiseparticipateinOSPFprotocolexchanges.
 Point‐to‐Point—ForLANsthathaveonlytwoOSPFroutingagents(theCN4093
andoneotherdevice),thisoptionallowstheswitchtosignificantlyreducethe
amountofroutinginformationitmustcarryandmanage.

Lenovo Flex System Fabric CN4093 Specifications

General

Brand	Lenovo
Model	Flex System Fabric CN4093
Category	Switch
Language	English