快速生成树配置(cisco).doc

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1、实验五、快速生成树配置一、实验目的：掌握交换机上生成树协议的诊断方法。二、背景描述：假设某企业采用两台交换机组成一个局网,由于很多数据流量是跨过交换机进行转发的,因此需要提高交换机之间的传输带宽,并实现链路冗余备分,为此网络管理员在两台交换机之间采用两根网线互联,三、实现功能：配置两个交换机之间的冗余主干道，对运行的生成树协议进行诊断。四、实验设备：CISCO交换机Catalyst2950两台，控制台电缆一条，交叉双绞线若干。五、实验拓扑：F0/5switchBswitchAPCPCF0/1F0/1F0/2F0/2F0/5

2、六、实验步骤：1、交换机switchA的基本配置:Switch>enableSwitch#configureterminalEnterconfigurationcommands,oneperline.EndwithCNTL/Z.Switch(config)#hostnameSwitchASwitchA(config)#vlan10VLAN10added:Name:VLAN0010SwitchA(config)#interfacevlan10SwitchA(config-if)#ipaddress192.168.0.1255

3、.255.255.0SwitchA(config-if)#exitSwitchA(config)#interfacefa0/5SwitchA(config-if)#switchportaccessvlan10SwitchA(config-if)#exitSwitchA(config)#interfacefa0/1SwitchA(config-if)#switchportmodetrunkSwitchA(config-if)#interfacefa0/2SwitchA(config-if)#switchportmodetru

4、nkSwitchA(config-if)#exitSwitchA(config)#spanning-treeportfastdefaultSwitchA(config)#exitSwitchA#showspanning-treeVLAN001SpanningtreeenabledprotocolieeeRootIDPriority32768Address000C.1000.4605ThisbridgeistherootHelloTime2secMaxAge20secForwardDelay15secBridgeIDPrio

5、rity32768Address000C.1000.4605HelloTime2secMaxAge20secForwardDelay15secAgingTime300InterfacePortIDDesignatedPortIDNamePrio.NbrCostStsCostBridgeIDPrio.Nbr-------------------------------------------------------------------------Fa0/132768.10FWD032768000C.1000.46050.

6、1Fa0/232768.20FWD032768000C.1000.46050.210SpanningtreeenabledprotocolieeeRootIDPriority32768Address000C.1000.4605ThisbridgeistherootHelloTime2secMaxAge20secForwardDelay15secBridgeIDPriority32768Address000C.1000.4605HelloTime2secMaxAge20secForwardDelay15secAgingTim

7、e300InterfacePortIDDesignatedPortIDNamePrio.NbrCostStsCostBridgeIDPrio.Nbr-------------------------------------------------------------------------Fa0/132768.10FWD032768000C.1000.46050.1Fa0/232768.20FWD032768000C.1000.46050.2Fa0/532768.50FWD032768000C.1000.46050.5

8、2、交换机switchB的配置：Switch>enableSwitch#configureterminalEnterconfigurationcommands,oneperline.EndwithCNTL/Z.Switch(config)#hostnameSwitchBSwitchB(config)#v