标签:1.9 c11 plink disabled ado bridge net bug blog
一、实验拓扑:2、将接口变为Trunk、封装dot1q
SW1(config)#int range f0/0 - 1
SW1(config-if-range)#switchport trunk encapsulation dot1q
SW1(config-if-range)#switchport mode trunk
同理:SW2、SW3同样配置
3、SW3的f0/0接口shutdown,验证是否需要30S f0/1接口才能起来:
SW3(config)#int f0/0
SW3(config-if)#shutdown
4、SW3交换机上部署Uplinkfast,验证f0/1接口是否可以秒变Fwarding:
SW3(config)#spanning-tree uplinkfast
5、部署Debug命令:
SW3#debug spanning-tree uplinkfast
Spanning Tree uplinkfast debugging is on
SW3(config)#no spanning-tree uplinkfast
SW3(config)#
*Mar 1 00:15:26.515: STP FAST: uplinkfast disabled
四、验证:
1、未部署命令前:
SW3#show spanning-tree vlan 10 brief
Name Port ID Prio Cost Sts Cost Bridge ID Port ID
FastEthernet0/0 128.1 128 19 FWD 0 32768 cc11.9464.0001 128.1
FastEthernet0/1 128.2 128 19 BLK 19 32768 cc12.9464.0001 128.2
2、SW3的f0/0接口shutdown后,f0/1需要30s进入Fwarding状态:
SW3#show spanning-tree vlan 10 brief
Name Port ID Prio Cost Sts Cost Bridge ID Port ID
FastEthernet0/1 128.2 128 19 LIS 19 32768 cc12.9464.0001 128.2
SW3#show spanning-tree vlan 10 brief
Name Port ID Prio Cost Sts Cost Bridge ID Port ID
FastEthernet0/1 128.2 128 19 LRN 19 32768 cc12.9464.0001 128.2
SW3#show spanning-tree vlan 10 brief
Name Port ID Prio Cost Sts Cost Bridge ID Port ID
FastEthernet0/1 128.2 128 19 FWD 19 32768 cc12.9464.0001 128.2
3、SW3交换机上部署Uplinkfast:
SW3#show spanning-tree vlan 10 brief
Name Port ID Prio Cost Sts Cost Bridge ID Port ID
FastEthernet0/1 128.2 128 3019 FWD 19 32768 cc12.9464.0001 128.2
标签:1.9 c11 plink disabled ado bridge net bug blog
原文地址:http://blog.51cto.com/13856092/2137250