3配置rapidpvst portfastbpdu防护实验

PVST2PVST定义了三种PVSTPVST+PVST融合来防止边缘端口转发BDPU。注意：CCNACiscoIOSRelease15.0(2)（lanbasek9映像）CiscoCatalyst2960CiscoIOSCiscoIOS版本不同，可用命令和产生第2步：配置PC主机。VLAN1099VLAN10VLAN99分别命名为“用户”和“管S1(config)#vlan10S1(config-vlan)#nameUserS1(config-vlan)#vlan99S1(config-vlan)#nameS2(config)#vlan10S2(config-vlan)#nameUserS2(config-vlan)#vlan99S2(config-vlan)#nameS3(config)#vlan10S3(config-vlan)#nameUserS3(config-vlan)#vlan99S3(config-vlan)#nameshowvlanbriefVLANVLAN表中注册并且分配了正确的端口。在所有的交换机上使用showinterfacestrunk命令来检验TRUNK接口。+?括VLAN1和用户配置的任何VLAN）创建单独的生成树实例。VLAN1S1的网桥优先级是什么？VLAN1S2的网桥优先级是什么？VLAN1S3的网桥优先级是什么？使用showspanning-tree命令来回答下列问题：VLAN1中S1的网桥优先级是什么？VLAN1S2的网桥优先级？S3#debugspanning-treeSpanningTreeeventdebuggingisS3(config)#interfaceS3(config-if)#*Mar100:58:56.225:STP:VLAN0001newrootportFa0/3,cost*Mar100:58:56.225:STP:VLAN0001Fa0/3->*Mar100:58:56.225:STP[1]:GeneratingTCtrapforport*Mar100:58:56.225:STP:VLAN0010newrootportFa0/3,cost*Mar100:58:56.225:STP:VLAN0010Fa0/3->*Mar100:58:56.225:STP[10]:GeneratingTCtrapforport*Mar100:58:56.225:STP:VLAN0099newrootportFa0/3,cost*Mar100:58:56.225:STP:VLAN0099Fa0/3->*Mar100:58:56.225:STP[99]:GeneratingTCtrapforport*Mar100:58:56.242:%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceVlan1,changedstatetodown*Mar100:58:56.242:%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceVlan99,changedstatetodown*Mar100:58:58.214:%LINK-5-CHANGED:InterfaceFastEthernet0/1,changedstatetoadministrativelydown*Mar100:58:58.230:STP:VLAN0001sentTopologyChangeNoticeon*Mar100:58:58.230:STP:VLAN0010sentTopologyChangeNoticeon*Mar100:58:58.230:STP:VLAN0099sentTopologyChangeNoticeon*Mar100:58:59.220:%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceFastEthernet0/1,changedstatetodown*Mar100:59:11.233:STP:VLAN0001Fa0/3->*Mar100:59:11.233:STP:VLAN0010Fa0/3->*Mar100:59:11.233:STP:VLAN0099Fa0/3->*Mar100:59:26.240:STP[1]:GeneratingTCtrapforport*Mar100:59:26.240:STP:VLAN0001Fa0/3->*Mar100:59:26.240:STP[10]:GeneratingTCtrapforport*Mar100:59:26.240:STP:VLAN0010sentTopologyChangeNoticeon*Mar100:59:26.240:STP:VLAN0010Fa0/3->*Mar100:59:26.240:STP[99]:GeneratingTCtrapforport*Mar100:59:26.240:STP:VLAN0099Fa0/3->*Mar100:59:26.248:%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceVlan1,changedstatetoup*Mar100:59:26.248:%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceVlan99,changedstatetoupdebugspanning-treeevents停止debug输出。间戳格式为datehh.mm.ss:msec。后使用debug命令来检查快速PVST+融合。showrunning-config|includespanning-treemode命令来检验配置。S1#showrunning-config|includespanning-treemodespanning-treemoderapid-pvstS2#showrunning-config|includespanning-treespanning-treemoderapid-S3#showrunning-config|includespanning-treespanning-treemoderapid-VLANPortFastBPDUS3(config)#interfaceS3(config-if)#no*Mar101:28:34.946:%LINK-3-UPDOWN:InterfaceFastEthernet0/1,changedstateto*Mar101:28:37.588:RSTP(1):initializingport1RSTP(1):Fa0/1isnow1RSTP(10):initializingport1RSTP(10):Fa0/1isnow1RSTP(99):initializingport1RSTP(99):Fa0/1isnow1RSTP(1):transmittingaproposalon1RSTP(10):transmittingaproposalon1RSTP(99):transmittingaproposalon1RSTP(1):updtroles,receivedsuperiorbpduon1RSTP(1):Fa0/1isnowroot1RSTP(1):Fa0/3blockedbyre-1RSTP(1):synced1RSTP(1):Fa0/3isnow1RSTP(10):updtroles,receivedsuperiorbpduon1RSTP(10):Fa0/1isnowroot1RSTP(10):Fa0/3blockedbyre-1RSTP(10):synced1RSTP(10):Fa0/3isnow1RSTP(99):updtroles,receivedsuperiorbpduon1RSTP(99):Fa0/1isnowroot1RSTP(99):Fa0/3blockedbyre-1RSTP(99):synced1RSTP(99):Fa0/3isnow1STP[1]:GeneratingTCtrapforport1STP[10]:GeneratingTCtrapforport1STP[99]:GeneratingTCtrapforport*Mar101:28:37.622:RSTP(1):transmittinganagreementonFa0/1asaresponsetoa*Mar101:28:37.622:RSTP(10):transmittinganagreementonFa0/1asaresponsetoa*Mar101:28:37.622:RSTP(99):transmittinganagreementonFa0/1asaresponsetoa*Mar101:28:38.595:%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceFastEthernet0/1,changedstatetoup+A-S1(config)#vlan10S1(config-vlan)#nameUserS1(config-vlan)#vlan99S1(config-vlan)#nameManagementS1(config-vlan)#exitS1(config)#interfacef0/6S1(config-if)#noshutdownS1(config-if)#switchportmodeaccessS1(config-if)#switchportaccessvlan10S1(config-if)#interfacef0/1S1(config-if)#noS1(config-if)#switchportmodeS1(config-if)#switchporttrunknativevlanS1(config-if)#interfacef0/3S1(config-if)#noshutdownS1(config-if)#switchportmodetrunkS1(config-if)#switchporttrunknativevlanS1(config-if)#interfacevlanS1(config-if)#ipaddress192.168.1.11S1(config-if)#S1(config)#spanning-treevlan1,10,99rootsecondaryS1(config)#spanning-treemoderapid-pvstS1(config)#interfacef0/6S1(config-if)#spanning-treebpduguardS2(config)#vlan10S2(config-vlan)#nameUserS2(config-vlan)#vlan99S2(config-vlan)#nameManagementS2(config-vlan)#exitS2(config)#interfacef0/1S2(config-if)#noshutdownS2(config-if)#switchportmodeS2(config-if)#switchporttrunknativevlanS2(config-if)#interfacef0/3S2(config-if)#noshutdownS2(config-if)#switchportmodetrunkS2(config-if)#switchporttrunknativevlanS2(config-if)#interfacevlanS2(config-if)#ipaddress192.168.1.12S2(config-if)#S2(config)#spanning-treevlan1,10,99rootS2(config)#spanning-treemoderapid-S3(config)#vlan10S3(config-vlan)#nameUserS3(config-vlan)#vlan99S3(config-vlan)#nameManagementS3(config-vlan)#exitS3(config)#interfacef0/18S3(config-if)#noshutdownS3(config-if)#switchportmodeaccessS3(config-if)#switchportaccessvlan10S3(config-if)#spanning-treeportfastS3(config-if)#spanning-treebpduguardenableS3(config-if)#interfacef0/1S3(config-if)#noS3(config-if)#switchportmodeS3(config-if)#switchporttrunknativevlanS3(config-if)#interfacef0/3S3(config-if)#noshutdownS3(config-if)#switchportmodetrunkS3(config-if)#switchporttrunknativevlanS3(config-if)#interfacevlanS3(config-if)#ipaddress192.168.1.13S3(config-if)#S3(config)#spanning-treemoderapid-S2(config-if)#ipaddress192.168.1.12S2(config-if)#S2(config)#spanning-treevlan1,10,99rootS2(config)#spanning-treemoderapid-S3(config)#vlan10S3(config-vlan)#nameUserS3(config-vlan)#vl