STP实验笔记

STP实验SWASwitch>enSwitch#conf tSwitch(config)#no ip do lookupSwitch(config)#no ip domain-lookupSwitch(config)#lin con 0Switch(config-line)#logging sySwitch(config-line)#exec-t 0Switch(config-line)#exit//交换机基础设置Switch(config)#ho SWA//交换机改名为SWASWA(config)#SWA(config)#int r f0/22-24SWA(config-if-range)#sw m trSWA(config-if-range)#SWA(config-if-range)#no shuSWA(config-if-range)#exitSWA(config)#int r f0/1 - 2SWA(config-if-range)#sw m trSWA(config-if-range)#SWA(config-if-range)#no shuSWA(config-if-range)#exit//设置端口22-24 和端口1-2为trunk 并激活端口SWA(config)#vtp do abcSWA(config)#vtp m sSWA(config)#vtp m serverSWA(config)#vtp v 2//设置vtp域名为abc 交换机A为vtp服务器SWA(config)#vl 10SWA(config-vlan)#na 10SWA(config-vlan)#vl 20SWA(config-vlan)#na 20SWA(config-vlan)#vl 30SWA(config-vlan)#na 30SWA(config-vlan)#vl 40SWA(config-vlan)#na 40SWA(config-vlan)#exit//建立vlan10 vlan20 vlan30 vlan40 四个vlanSWA(config)#int vl 1SWA(config-if)#ip add 192.168.1.100 255.255.255.0SWA(config-if)#no shuSWA(config-if)#SWA(config-if)#exit//设置交换机A的ip地址为192.168.1.100 子网掩码为255.255.255.0SWA(config)#do sh vtp stdo sh vtp stVTP Version : 2Configuration Revision : 9Maximum VLANs supported locally : 1005Number of existing VLANs : 10VTP Operating Mode : ServerVTP Domain Name : abcVTP Pruning Mode : DisabledVTP V2 Mode : EnabledVTP Traps Generation : DisabledMD5 digest : 0x26 0xB8 0x3B 0xC2 0x33 0x47 0xBF 0xD1Configuration last modified by 192.168.1.100 at 3-1-93 01:03:39Local updater ID is 192.168.1.100 on interface Vl1 (lowest numbered VLAN interface found)//查看vtp信息SWA(config)#do sh vl brVLAN Name Status Ports---- -------------------------------- --------- -------------------------------1 default active Fa0/3, Fa0/4, Fa0/5, Fa0/6Fa0/7, Fa0/8, Fa0/9, Fa0/10Fa0/11, Fa0/12, Fa0/13, Fa0/14Fa0/15, Fa0/16, Fa0/17, Fa0/18Fa0/19, Fa0/20, Fa0/21, Gig0/1Gig0/210 10 active20 20 active30 30 active40 40 active1002 fddi-default active1003 token-ring-default active1004 fddinet-default active1005 trnet-default active// 查看vlan信息将22-24和1-2端口激活并设置成trunk设置SWA为vpt 服务器建立vl10 vl20 vl30 vl40设置SWA ip：192.168.1.100 255.255.255.0SWA(config)#spanning-tree vlan 10 root primarySWA(config)#do sh spVLAN0001Spanning tree enabled protocol ieeeRoot ID Priority 32769Address 0002.4A2C.3908Cost 19Port 1(FastEthernet0/1)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)Address 0010.11A2.9154Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Root FWD 19 128.1 P2pFa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Altn BLK 19 128.24 P2pFa0/2 Altn BLK 19 128.2 P2pVLAN0010Spanning tree enabled protocol ieeeRoot ID Priority 24586Address 0010.11A2.9154This bridge is the rootHello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 24586 (priority 24576 sys-id-ext 10)Address 0010.11A2.9154Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Desg FWD 19 128.1 P2pFa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Desg LSN 19 128.24 P2pFa0/2 Desg LSN 19 128.2 P2pVLAN0020Spanning tree enabled protocol ieeeRoot ID Priority 32788Address 0002.4A2C.3908Cost 19Port 1(FastEthernet0/1)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32788 (priority 32768 sys-id-ext 20)Address 0010.11A2.9154Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Root FWD 19 128.1 P2pFa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Altn BLK 19 128.24 P2pFa0/2 Altn BLK 19 128.2 P2pVLAN0030Spanning tree enabled protocol ieeeRoot ID Priority 32798Address 0002.4A2C.3908Cost 19Port 1(FastEthernet0/1)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32798 (priority 32768 sys-id-ext 30)Address 0010.11A2.9154Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Root FWD 19 128.1 P2pFa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Altn BLK 19 128.24 P2pFa0/2 Altn BLK 19 128.2 P2pVLAN0040Spanning tree enabled protocol ieeeRoot ID Priority 32808Address 0002.4A2C.3908Cost 19Port 1(FastEthernet0/1)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32808 (priority 32768 sys-id-ext 40)Address 0010.11A2.9154Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20SWA(config)#spanning-tree vlan 20 root primary//将在交换机A上修改vlan10 vlan20 的根网桥优先级，修改后SWA是vlan10 vlan20的根网桥SWA(config)#in r f0/1 -2SWA(config-if-range)#channel-group 1 mode onSWA(config-if-range)#SWA(config-if-range)#end//设置以太网通道组号为1SWA#SWA#sh etherchannel summaryFlags: D - down P - in port-channelI - stand-alone s - suspendedH - Hot-standby (LACP only)R - Layer3 S - Layer2U - in use f - failed to allocate aggregatoru - unsuitable for bundlingw - waiting to be aggregatedd - default portNumber of channel-groups in use: 1Number of aggregators: 1Group Port-channel Protocol Ports------+-------------+-----------+----------------------------------------------1 Po1(SU) PAgP Fa0/1(P) Fa0/2(P)SWA#//查看以太网通道(P) ：代表成功（D）：代表失败SWA(config)#do sh spVLAN0001Spanning tree enabled protocol ieeeRoot ID Priority 32769Address 0002.4A2C.3908Cost 9Port 27(Port-channel 1)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)Address 0010.11A2.9154Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Desg FWD 19 128.1 P2pFa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Altn BLK 19 128.24 P2pFa0/2 Desg FWD 19 128.2 P2pPo1 Root FWD 9 128.27 ShrVLAN0010Spanning tree enabled protocol ieeeRoot ID Priority 24586Address 0010.11A2.9154This bridge is the rootHello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 24586 (priority 24576 sys-id-ext 10)Address 0010.11A2.9154Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Desg FWD 19 128.24 P2pFa0/2 Desg FWD 19 128.2 P2pPo1 Desg FWD 9 128.27 ShrVLAN0020Spanning tree enabled protocol ieeeRoot ID Priority 24596Address 0002.4A2C.3908Cost 9Port 27(Port-channel 1)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 24596 (priority 24576 sys-id-ext 20)Address 0010.11A2.9154Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Desg FWD 19 128.1 P2pFa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Altn BLK 19 128.24 P2pFa0/2 Desg FWD 19 128.2 P2pPo1 Root FWD 9 128.27 ShrVLAN0030Spanning tree enabled protocol ieeeRoot ID Priority 24606Address 0002.4A2C.3908Cost 9Port 27(Port-channel 1)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32798 (priority 32768 sys-id-ext 30)Address 0010.11A2.9154Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Altn BLK 19 128.24 P2pFa0/2 Desg FWD 19 128.2 P2pPo1 Root FWD 9 128.27 ShrVLAN0040Spanning tree enabled protocol ieeeRoot ID Priority 24616Address 0002.4A2C.3908Cost 9Port 27(Port-channel 1)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32808 (priority 32768 sys-id-ext 40)Address 0010.11A2.9154Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Desg FWD 19 128.1 P2pFa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Altn BLK 19 128.24 P2pFa0/2 Desg FWD 19 128.2 P2pPo1 Root FWD 9 128.27 ShrVLAN0050Spanning tree enabled protocol ieeeRoot ID Priority 32818Address 0002.4A2C.3908Cost 9Port 27(Port-channel 1)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32818 (priority 32768 sys-id-ext 50)Address 0010.11A2.9154Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/22 Desg FWD 19 128.22 P2p Fa0/23 Desg FWD 19 128.23 P2p Fa0/24 Altn BLK 19 128.24 P2p Fa0/2 Desg FWD 19 128.2 P2p Po1 Root FWD 9 128.27 Shr //在后面又建立一个vlan50 查看所有的生成树SWA#设置vlan10 vlan20 的根网桥为SWA设置以太网通道SWBSwitch>enSwitch#conf tSwitch(config)#ho SWBSWB(config)#no ip domain lookupSWB(config)#lin con 0SWB(config-line)#loggSWB(config-line)#logging sySWB(config-line)#exec-t 0SWB(config-line)#exitSWB(config)#int r f0/22-24SWB(config-if-range)#sw m trSWB(config-if-range)#SWB(config-if-range)#no shuSWB(config-if-range)#int r f0/1-2SWB(config-if-range)#sw m trSWB(config-if-range)#no shuSWB(config-if-range)#exitSWB(config)#设置22-24和1-2端口激活并设置trunk交换机基础配置SWB(config)#vtp do abcSWB(config)#vtp m cSWB(config)#do sh vtp stVTP Version : 2Configuration Revision : 9Maximum VLANs supported locally : 1005Number of existing VLANs : 9VTP Operating Mode : ClientVTP Domain Name : abcVTP Pruning Mode : DisabledVTP V2 Mode : EnabledVTP Traps Generation : DisabledMD5 digest : 0x84 0x71 0xFA 0x24 0xBC 0xAE 0xE6 0x29Configuration last modified by 192.168.1.100 at 3-1-93 00:14:19SWB(config)#do sh vl brVLAN Name Status Ports---- -------------------------------- --------- -------------------------------1 default active Fa0/3, Fa0/4, Fa0/5, Fa0/6Fa0/7, Fa0/8, Fa0/9, Fa0/10Fa0/11, Fa0/12, Fa0/13, Fa0/14Fa0/15, Fa0/16, Fa0/17, Fa0/18Fa0/19, Fa0/20, Fa0/21, Gig0/1Gig0/210 10 active20 20 active30 30 active40 40 active1002 fddi-default active1003 token-ring-default active1004 fddinet-default active1005 trnet-default activeSWB(config)#设置vtp为客户端学习到vtp中vlan信息spanning-tree vl 30 root primarySWB(config)#spanning-tree vl 40 root primarySWB(config)#do sh spVLAN0001Spanning tree enabled protocol ieeeRoot ID Priority 32769Address 0002.4A2C.3908This bridge is the rootHello Time 2 sec Max Age 20 sec Forward Delay 15 secBridge ID Priority 32769 (priority 32768 sys-id-ext 1)Address 0002.4A2C.3908Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Desg FWD 19 128.1 P2pFa0/2 Desg FWD 19 128.2 P2pFa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Desg FWD 19 128.24 P2pVLAN0010Spanning tree enabled protocol ieeeRoot ID Priority 24586Address 0010.11A2.9154Cost 19Port 1(FastEthernet0/1)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32778 (priority 32768 sys-id-ext 10)Address 0002.4A2C.3908Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Root FWD 19 128.1 P2pFa0/2 Altn BLK 19 128.2 P2pFa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Altn BLK 19 128.24 P2pVLAN0020Spanning tree enabled protocol ieeeRoot ID Priority 24596Address 0002.4A2C.3908This bridge is the rootHello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 24596 (priority 24576 sys-id-ext 20)Address 0002.4A2C.3908Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Desg FWD 19 128.1 P2pFa0/2 Desg FWD 19 128.2 P2pFa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Desg FWD 19 128.24 P2pVLAN0030Spanning tree enabled protocol ieeeRoot ID Priority 24606Address 0002.4A2C.3908This bridge is the rootHello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 24606 (priority 24576 sys-id-ext 30)Address 0002.4A2C.3908Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Desg FWD 19 128.1 P2pFa0/2 Desg FWD 19 128.2 P2pFa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Desg FWD 19 128.24 P2pVLAN0040Spanning tree enabled protocol ieeeRoot ID Priority 24616Address 0002.4A2C.3908This bridge is the rootHello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 24616 (priority 24576 sys-id-ext 40)Address 0002.4A2C.3908Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Desg FWD 19 128.1 P2pFa0/2 Desg FWD 19 128.2 P2pFa0/22 Desg FWD 19 128.22 P2pFa0/23 Desg FWD 19 128.23 P2pFa0/24 Desg FWD 19 128.24 P2pSWB(config)#设置vlan30 vlan40的根网桥为SWB查看生成树SWB(config)#in r f0/1 -2SWB (config-if-range)#channel-group 1 mode onSWB (config-if-range)#SWB (config-if-range)#end//设置以太网通道组号为1SWB#SWB#sh etherchannel summaryFlags: D - down P - in port-channelI - stand-alone s - suspendedH - Hot-standby (LACP only)R - Layer3 S - Layer2U - in use f - failed to allocate aggregatoru - unsuitable for bundlingw - waiting to be aggregatedd - default portNumber of channel-groups in use: 1Number of aggregators: 1Group Port-channel Protocol Ports------+-------------+-----------+---------------------------------------------- 1 Po1(SU) PAgP Fa0/1(P) Fa0/2(P)SWB#//查看以太网通道(P) ：代表成功（D）：代表失败SWCSwitch>Switch>enSwitch#conf tSwitch(config)#ho SWCSWC(config)#no ip domain lookupSWC(config)#lin con 0SWC(config-line)#logging sySWC(config-line)#exec-t 0SWC(config-line)#exitSWC(config)#int r f0/22-23SWC(config-if-range)#sw m trSWC(config-if-range)#no shuSWC(config-if-range)#exitSWC(config)#vtp do abcDomain name already set to abc.SWC(config)#vtp m cSWC(config)#do sh vl brVLAN Name Status Ports---- -------------------------------- --------- -------------------------------1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4Fa0/5, Fa0/6, Fa0/7, Fa0/8Fa0/9, Fa0/10, Fa0/11, Fa0/12Fa0/13, Fa0/14, Fa0/15, Fa0/16Fa0/17, Fa0/18, Fa0/19, Fa0/20Fa0/21, Fa0/24, Gig1/1, Gig1/210 10 active20 20 active30 30 active40 40 active1002 fddi-default active1003 token-ring-default active1004 fddinet-default active1005 trnet-default activeSWC(config)#设置22-23端口为trunk并激活设置vtp为客户端学习vlan信息SWC SWC(config )#int r f0/1-20SWC(config-if-range)#spanning-tree portfastSWC(config-if-range)#do sh spVLAN0001Spanning tree enabled protocol ieeeRoot ID Priority 32769Address 0002.4A2C.3908Cost 19Port 23(FastEthernet0/23)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)Address 0030.A342.7D15Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Desg FWD 19 128.1 P2pFa0/22 Altn BLK 19 128.22 P2pFa0/23 Root FWD 19 128.23 P2pVLAN0010Spanning tree enabled protocol ieeeRoot ID Priority 24586Address 0010.11A2.9154Cost 19Port 22(FastEthernet0/22)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32778 (priority 32768 sys-id-ext 10)Address 0030.A342.7D15Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/22 Root FWD 19 128.22 P2pFa0/23 Altn BLK 19 128.23 P2pVLAN0020Spanning tree enabled protocol ieeeRoot ID Priority 24596Address 0002.4A2C.3908Cost 19Port 23(FastEthernet0/23)Hello Time 2 sec Max Age 20 sec Forward Delay 15 secBridge ID Priority 32788 (priority 32768 sys-id-ext 20)Address 0030.A342.7D15Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/22 Altn BLK 19 128.22 P2pFa0/23 Root FWD 19 128.23 P2pVLAN0030Spanning tree enabled protocol ieeeRoot ID Priority 24606Address 0002.4A2C.3908Cost 19Port 23(FastEthernet0/23)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32798 (priority 32768 sys-id-ext 30)Address 0030.A342.7D15Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/22 Altn BLK 19 128.22 P2pFa0/23 Root FWD 19 128.23 P2pVLAN0040Spanning tree enabled protocol ieeeRoot ID Priority 24616Address 0002.4A2C.3908Cost 19Port 23(FastEthernet0/23)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32808 (priority 32768 sys-id-ext 40)Address 0030.A342.7D15Hello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/22 Altn BLK 19 128.22 P2pFa0/23 Root FWD 19 128.23 P2pSWC(config-if-range)#spanning-tree uplinkfast设置成1-20端口为速端口设置速链路查看生成树检验：1、SWA 是vlan10和vlan20的根网桥吗2、SWB是vlan30 vlan40的根网桥吗SWDSwitch>Switch>enSwitch#conf tSwitch(config)#no ip domain lookupSwitch(config)#lin con 0Switch(config-line)#logging sySwitch(config-line)#exec-t 0Switch(config-line)#exitSwitch(config)#int r f0/22-23Switch(config-if-range)#sw m trSwitch(config-if-range)#no shuSwitch(config-if-range)#exitSwitch(config)#vtp do abcSwitch(config)#vtp m cSwitch(config)#do sh vl brVLAN Name Status Ports---- -------------------------------- --------- -------------------------------1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4Fa0/5, Fa0/6, Fa0/7, Fa0/8Fa0/9, Fa0/10, Fa0/11, Fa0/12Fa0/13, Fa0/14, Fa0/15, Fa0/16Fa0/17, Fa0/18, Fa0/19, Fa0/20Fa0/21, Fa0/24, Gig1/1, Gig1/210 10 active20 20 active30 30 active40 40 active1002 fddi-default active1003 token-ring-default active1004 fddinet-default active1005 trnet-default activeSwitch(config)#设置22-23端口为trunk并激活设置vtp为客户端学习vlan信息Switch(config)#do sh spVLAN0001Spanning tree enabled protocol ieeeRoot ID Priority 32769Address 0002.4A2C.3908Cost 19Port 22(FastEthernet0/22)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)Address 0060.3EC2.E1DAHello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/1 Desg FWD 19 128.1 P2pFa0/22 Root FWD 19 128.22 P2pFa0/23 Altn BLK 19 128.23 P2pVLAN0010Spanning tree enabled protocol ieeeRoot ID Priority 24586Address 0010.11A2.9154Cost 19Port 23(FastEthernet0/23)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32778 (priority 32768 sys-id-ext 10)Address 0060.3EC2.E1DAHello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/22 Altn BLK 19 128.22 P2pFa0/23 Root FWD 19 128.23 P2pVLAN0020Spanning tree enabled protocol ieeeRoot ID Priority 24596Address 0002.4A2C.3908Cost 19Port 22(FastEthernet0/22)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32788 (priority 32768 sys-id-ext 20)Address 0060.3EC2.E1DAHello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/22 Root FWD 19 128.22 P2pFa0/23 Altn BLK 19 128.23 P2pVLAN0030Spanning tree enabled protocol ieeeRoot ID Priority 24606Address 0002.4A2C.3908Cost 19Port 22(FastEthernet0/22)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32798 (priority 32768 sys-id-ext 30)Address 0060.3EC2.E1DAHello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/22 Root FWD 19 128.22 P2pFa0/23 Altn BLK 19 128.23 P2pVLAN0040Spanning tree enabled protocol ieeeRoot ID Priority 24616Address 0002.4A2C.3908Cost 19Port 22(FastEthernet0/22)Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32808 (priority 32768 sys-id-ext 40)Address 0060.3EC2.E1DAHello Time 2 sec Max Age 20 sec Forward Delay 15 secAging Time 20Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Fa0/22 Root FWD 19 128.22 P2pFa0/23 Altn BLK 19 128.23 P2pSwitch(config)#int r f0/1 - 20Switch(config-if-range)#spanning-tree portfastSwitch(config)#spanning-tree uplinkfast设置成1-20端口为速端口设置速链路查看生成树检验：1、SWA 是vlan10和vlan20的根网桥吗2、SWB是vlan30 vlan40的根网桥吗。