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cisco思科怎么配置STP.docx

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cisco思科怎么配置STPcisco思科配置STP的方法：SwA(config)#spanning-treevlan1rootprimarySwA(config)#spanning-treevlan2rootprimaryv配置SwB在VLAN3和4中优先级为4096SwB(config)#spanning-treevlan3priority4096v配置SwA为VLAN1和2的根网桥SwB(config)#spanning-treevlan4priority4096v查看配置结果SwB#showspanning-treeVLAN0001SpanningtreeenabledprotocolieeeRootIDPriority24577Address000d.28bf.4b40Cost19Port24(FastEthernet0/24)HelloTime2secMaxAge20secForwardDelay15secBridgeIDPriority32769(priority32768sys-id-ext1)Address0013.6007.6a00HelloTime2secMaxAge20secForwardDelay15secAgingTime300InterfaceRoleStsCostPrio.NbrType------------------------------------------------------------------------Fa0/22AltnBLK19128.22P2pFa0/23AltnBLK19128.23P2pFa0/24RootFWD19128.24P2pVLAN0002SpanningtreeenabledprotocolieeeRootIDPriority24578Address000d.28bf.4b40Cost19Port24(FastEthernet0/24)HelloTime2secMaxAge20secForwardDelay15secBridgeIDPriority32770(priority32768sys-id-ext2)Address0013.6007.6a00HelloTime2secMaxAge20secForwardDelay15secAgingTime300InterfaceRoleStsCostPrio.NbrType------------------------------------------------------------------------Fa0/22AltnBLK19128.22P2pFa0/23AltnBLK19128.23P2pFa0/24RootFWD19128.24P2pv查看配置结果(VLAN3-4)SwA#showspanning-treeVLAN0003SpanningtreeenabledprotocolieeeRootIDPriority4099Address0013.6007.6a00Cost19Port24(FastEthernet0/24)HelloTime2secMaxAge20secForwardDelay15secBridgeIDPriority32771(priority32768sys-id-ext3)Address000d.28bf.4b40HelloTime2secMaxAge20secForwardDelay15secAgingTime300InterfaceRoleStsCostPrio.NbrType------------------------------------------------------------------------Fa0/22AltnBLK19128.22P2pFa0/23AltnBLK19128.23P2pFa0/24RootFWD19128.24P2pv配置交换机C上连接主机的端口为速端口SwC(config)#interfacerangefastEthernet0/1-20SwC(config-if-range)#spanning-treeportfast%Warning:portfastshouldonlybeenabledonportsconnectedtoasinglehost.Connectinghubs,concentrators,switches,bridges,etc...tothisinterfacewhenportfastisenabled,cancausetemporarybridgingloops.UsewithCAUTION%Portfastwillbeconfiguredin20interfacesduetotherangec