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cisco思科怎么配置STP

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  思科公司已成为公认的世界网络互联解决方案的领先厂商,该公司出产的一系列路由器更是引领世界,那么你知道cisco思科怎么配置STP吗?下面是学习啦小编整理的一些关于cisco思科怎么配置STP的相关资料,供你参考。

  cisco思科配置STP的方法:

  SwA(config)#spanning-tree vlan 1 root primary

  SwA(config)#spanning-tree vlan 2 root primary

  v配置SwB在VLAN 3和4中优先级为4096

  SwB(config)#spanning-tree vlan 3 priority 4096

  v配置SwA为VLAN 1和2的根网桥

  SwB(config)#spanning-tree vlan 4 priority 4096

  v查看配置结果

  SwB# show spanning-tree

  VLAN0001

  Spanning tree enabled protocol ieee

  Root ID Priority 24577

  Address 000d.28bf.4b40

  Cost 19

  Port 24 (FastEthernet0/24)

  Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

  Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)

  Address 0013.6007.6a00

  Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

  Aging Time 300

  Interface Role Sts Cost Prio.Nbr Type

  ---------------- ---- --- --------- -------- --------------------------------

  Fa0/22 Altn BLK 19 128.22 P2p

  Fa0/23 Altn BLK 19 128.23 P2p

  Fa0/24 Root FWD 19 128.24 P2p

  VLAN0002

  Spanning tree enabled protocol ieee

  Root ID Priority 24578

  Address 000d.28bf.4b40

  Cost 19

  Port 24 (FastEthernet0/24)

  Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

  Bridge ID Priority 32770 (priority 32768 sys-id-ext 2)

  Address 0013.6007.6a00

  Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

  Aging Time 300

  Interface Role Sts Cost Prio.Nbr Type

  ---------------- ---- --- --------- -------- --------------------------------

  Fa0/22 Altn BLK 19 128.22 P2p

  Fa0/23 Altn BLK 19 128.23 P2p

  Fa0/24 Root FWD 19 128.24 P2p

  v查看配置结果(VLAN 3 - 4)

  SwA#show spanning-tree

  VLAN0003

  Spanning tree enabled protocol ieee

  Root ID Priority 4099

  Address 0013.6007.6a00

  Cost 19

  Port 24 (FastEthernet0/24)

  Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

  Bridge ID Priority 32771 (priority 32768 sys-id-ext 3)

  Address 000d.28bf.4b40

  Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

  Aging Time 300

  Interface Role Sts Cost Prio.Nbr Type

  ---------------- ---- --- --------- -------- --------------------------------

  Fa0/22 Altn BLK 19 128.22 P2p

  Fa0/23 Altn BLK 19 128.23 P2p

  Fa0/24 Root FWD 19 128.24 P2p

  v配置交换机 C上连接主机的端口为速端口

  SwC(config)#interface range fastEthernet 0/1 - 20

  SwC(config-if-range)#spanning-tree portfast

  %Warning: portfast should only be enabled on ports connected to a single

  host. Connecting hubs, concentrators, switches, bridges, etc... to this

  interface when portfast is enabled, can cause temporary bridging loops.

  Use with CAUTION

  %Portfast will be configured in 20 interfaces due to the range command

  but will only have effect when the interfaces are in a non-trunking mode.

  v在交换机C上配置上行速链路

  SwC(config)#spanning-tree uplinkfast

  v配置了上行速链路后查看生成树信息

  SwC#show spanning-tree

  VLAN0001

  Spanning tree enabled protocol ieee

  Root ID Priority 24577

  Address 000d.28bf.4b40

  Cost 3019

  Port 23 (FastEthernet0/23)

  Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

  Bridge ID Priority 49153 (priority 49152 sys-id-ext 1)

  Address 000d.2861.b100

  Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

  Aging Time 300

  Uplinkfast enabled

  Interface Role Sts Cost Prio.Nbr Type

  ---------------- ---- --- --------- -------- --------------------------------

  Fa0/22 Altn BLK 3019 128.22 P2p

  Fa0/23 Root FWD 3019 128.23 P2p

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