STP配置实例.doc

实验步骤按照顺序来1.SWA配置SWA#conf tSWA(config)#int rang f0/1 - 2SWA(config-if-range)#switchport mode trunkSWA(config-if-range)#channel-group 1 mode onSWA(config-if-range)#exitSWA(config)#int range f0/14 - 15SWA(config-if-range)#switchport mode trunkSWA(config-if-range)#endSWA#vlan databaseSWA(vlan)#vlan 2SWA(vlan)#vlan 3SWA(vlan)#vlan 4SWA(vlan)#exit2.SWB配置SWB#conf tSWB(config)#int range f0/1 - 2SWB(config-if-range)#switchport mode trunkSWB(config-if-range)#channel-group 1 mode onSWB(config-if-range)#exitSWB(config)#int range f0/14 - 15SWB(config-if-range)#switchport mode trunkSWB(config-if-range)#endSWB#vlan databaseSWB(vlan)#vlan 2SWB(vlan)#vlan 3SWB(vlan)#vlan 4SWB(vlan)#exit3.SWC配置SWC#conf tSWC(config)#int range f0/14 - 15SWC(config-if-range)#switchport mode trunkSWC(config-if-range)#endSWC#vlan databaseSWB(vlan)#vlan 2SWB(vlan)#vlan 3SWB(vlan)#vlan 4SWB(vlan)#exitSWC#show spanning-tree Port 15 (FastEthernet0/14) of VLAN1 is forwardingPort 16 (FastEthernet0/15) of VLAN1 is blockingPort 15 (FastEthernet0/14) of VLAN2 is forwardingPort 16 (FastEthernet0/15) of VLAN2 is blockingPort 15 (FastEthernet0/14) of VLAN3 is blockingPort 16 (FastEthernet0/15) of VLAN3 is forwardingPort 15 (FastEthernet0/14) of VLAN4 is blockingPort 16 (FastEthernet0/15) of VLAN4 is forwarding4.SWD配置SWD#conf tSWD(config)#int range f0/14 - 15SWD(config-if-range)#switchport mode trunkSWD(config-if-range)#endSWD#vlan databaseSWB(vlan)#vlan 2SWB(vlan)#vlan 3SWB(vlan)#vlan 4SWB(vlan)#exitSWD#show vtp statusVTP Version : 2Configuration Revision : 2Maximum VLANs supported locally : 256Number of existing VLANs : 9VTP Operating Mode : ClientVTP Domain Name : syVTP Pruning Mode : EnabledVTP V2 Mode : DisabledVTP Traps Generation : DisabledMD5 digest : 0xF8 0xB6 0x3B 0x3A 0xF4 0xBF 0xD9 0x1E Configuration last modified by 0.0.0.0 at 3-1-02 00:20:36SWD#show vlan-sw briefVLAN Name Status Ports- - - -1 default active Fa0/0, Fa0/1, Fa0/2, Fa0/3 Fa0/4, Fa0/5, Fa0/6, Fa0/7 Fa0/8, Fa0/9, Fa0/10, Fa0/11 Fa0/12, Fa0/132 VLAN0002 active 3 VLAN0003 active 4 VLAN0004 active 1002 fddi-default active 1003 token-ring-default active 1004 fddinet-default active 1005 trnet-default active SWD#conf tSWD(config)#int f0/2SWD(config-if)#switchport access vlan 2SWD(config-if)#endSWD#conf tSWD(config)#spanning-tree uplinkfastSWD(config)#int range f0/1 - 13SWD(config-if-range)#spanning-tree portfastSWD(config-if-range)#endSWD#show spanning-tree summary UplinkFast is enabledSWD#show spanning-tree interface f0/2 The port is in the portfast modeSWD#show spanning-tree Port 15 (FastEthernet0/14) of VLAN1 is blockingPort 16 (FastEthernet0/15) of VLAN1 is forwardingPort 15 (FastEthernet0/14) of VLAN2 is blockingPort 16 (FastEthernet0/15) of VLAN2 is forwardingPort 15 (FastEthernet0/14) of VLAN3 is forwardingPort 16 (FastEthernet0/15) of VLAN3 is blockingPort 15 (FastEthernet0/14) of VLAN4 is forwardingPort 16 (FastEthernet0/15) of VLAN4 is blocking5.SWC配置SWC#conf tSWC(config)#int f0/2SWC(config-if)#switchport access vlan 2SWC(config-if)#endSWC#conf tSWC(config)#spanning-tree uplinkfast SWC(config)#int range f0/1 - 13SWC(config-if-range)#spanning-tree portfastSWC#show spanning-tree summary UplinkFast is enabledSWC#show spanning-tree interface fastEthernet 0/2 The port is in the portfast mode6.SWB配置SWB#conf tSWB(config)#spanning-tree vlan 3 root primarySWB(config)#spanning-tree vlan 4 root primarySWB(config)#endSWB#show spanning-tree summaryRoot bridge for: VLAN3, VLAN4.7.SWA配置SWA#conf tSWA(config)#spanning-tree vlan 2 root primary SWA(config)#spanning-tree vlan 1 root primarySWA(config)#endSWA#show spanning-tree summaryRoot bridge for: VLAN1, VLAN2.8.客户机配置HostA(VLAN2):IP:192.168.1.2/24HostB(VLAN2):ip:192.168.1.3/249.测试:HostA#ping 192.168.1.3Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 192.168.1.3, timeout is 2 seconds:!Success rate is 100 percent (5/5), round-trip min/avg/max = 68/127/144 ms3台交换机，拓扑就不画了。只是注意下端口，用f0/1 - 3。交换机比较少，直接在三个交换机输入命令，创建vlan 2开始命令基本一样Switchen Switch#vlan dSwitch(vlan)#vlan 2Switch(vlan)#ZSwitch#conf tSwitch(config)#int rSwitch(config)#int range f0/1 - 3Switch(config-if-range)#sw mode tSwitch(config-if-range)#no shutdown 至此，vlan 2 在三台上设置好了，在SW1上设置vlan2 的根网桥SW1#conf terminal SW1(config)#spanning-tree vlan 2 root primary SW1(config)#Z设置好了，查看SW1#show spanning-tree vlan 2VLAN0002 Spanning tree enabled protocol ieee Root ID Priority 24578 Address 0009.7C82.5992 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 24578 (priority 24576 sys-id-ext 2) Address 0009.7C82.5992 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 20Interface Role Sts Cost Prio.Nbr Type- - - - - -Fa0/1 Desg FWD 19 128.1 P2pFa0/2 Desg FWD 19 128.2 P2p拓扑概况：双核心交换机A、B，A为VLAN1-4的根桥，B为VLAN5-8的根桥，利用多生成树协议实现负载均衡。步骤一：VLAN1-4根桥的设置switch_A#conf tswitch_A(config)#spanning-tree -开启生成树协议，默认模式为MSTPswitch_A(config)#spanning-tree mst configuration switch_A(config-mst)# instance 1 vlan 1,2,3,4 -创建实例1，并关联VLAN1-4switch_A(config-mst)# instance 2 vlan 5,6,7,8 -创建实例2，并关联VLAN5-8switch_A(config)# spanning-tree mst 1 priority 4096-创设置A为实例1的根桥，即VLAN1-4的根桥步骤二：VLAN5-8根桥的设置switch_B#conf tswitch_B(config)#spanning-tree -开启生成树协议，默认模式为MSTPswitch_B(config)#spanning-tree mst configuration switch_B(config-mst)# instance 1 vlan 1,2,3,4 -创建实例1，并关联VLAN1-4switch_B(config-mst)# instance 2 vlan 5,6,7,8 -创建实例2，并关联VLAN5-8switch_B(config)# spanning-tree mst 2 priority 4096-创设置B为实例2的根桥，即VLAN5-8的根桥步骤三：其他分根桥交换机的设置switch_C#conf tswitch_C(config)#spanning-tree -开启生成树协议，默认模式为MSTPswitch_C(config)#spanning-tree mst configuration switch_C(config-mst)# instance 1 vlan 1,2,3,4 -创建实例1，并关联