ex交换机rstp设置、冗余链路配置

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1、内容：1RSTP配置案例指南2接入冗余链路配置指南RedundantTrunkLinksforFasterRecovery（12页）注意：上述两种链路冗余方式同一个交换机上只能够用一种。几种查看STP状态的命令：showspanning-treebridge查看网络拓扑信息showspanning-treeinterface查看端口信息showspanning-treebridgedetail查看拓扑改变信息monitorinterfacetraffic查看端II转发数据包的信息1>Example:ConfiguringFasterConvergenceand

2、ImprovingNetworkStabilitywithRSTPonEXSeriesSwitchesEXSeriesswitchesuseRapidSpanningTreeProtocol(RSTP)bydefaulttoprovidealoop-freetopology.RSTPworksbyidentifyingcertainlinksaspointtopointlinksandblockingotherpossiblepaths・Whenoneofthepoint-to-pointlinksfails,adesignatedalternatelinktra

3、nsitionstotheforwardingstateandtakeover.WhenswitchesthatsupportredundantroutingenginesuseRSTP,itisimportanttokeepRSTPsynchronizedonbothRoutingEnginessothatnolossofserviceoccursafteraRoutingEngineswitchover.Configuringnonstopbridging(NSB)onaswitchwithredundantRoutingEngineskeepsRSTPsyn

4、chronizedonbothRoutingEngines・Thisway,RSTPremainsactiveimmediatelyafteraswitchoverbecauseitisalreadysynchronizedtothebackupRoutingEngine.RSTPdoesnothavetoreconvergeafteraRoutingEngineswitchoverwhenNSBisenabledbecausetheneighbordevicesdonotdetectanRSTPchangeontheswitch.Thisexampledescr

5、ibeshowtoconfigureRSTPandNSBonfourEXSeriesswitches:RequirementsOverviewandTopologyConfiguringRSTPandNSBonSwitch1ConfiguringRSTPandNSBonSwitch2ConfiguringRSTPandNSBonSwitch3ConfiguringRSTPandNSBonSwitch4VerificationRequirementsThisexampleusesthefollowinghardwareandsoftwarecomponents:Ju

6、nosOSRelease9.0orlaterforEXSeriesswitchesFourEXSeriesswitchesBeforeyouconfiguretheswitchesforRSTP,besureyouhave:Installedthefourswitches.SeeConnectingandConfiguringanEXSeriesSwitch(J-WebProcedure).Performedtheinitialsoftwareconfigurationonallswitches・SeeInstallingandConnectinganEX3200

7、Switch.OverviewandTopologyInthisexample,fourEXSeriesswitchesareconnectedinthetopologydisplayedinFigure1tocreatealoop-freetopology.Figure1:NetworkTopologyforRSTP$昨1Switch4ge・0/0/19ge-0/0/14Switch2Switcli3DesignatedRootPtxiAltcmatoTable1:ComponentsoftheTopologyforConfiguringRSTPonEXSeri

8、esSwi