Router(config)#no spanning-tree loopguard default 要确认环路防护状态,请发出以下命令: Cisco IOS show spanning-treeRouter#show spanning-tree summarySwitch is in pvst mode Root bridge for: none EtherChannel misconfig guard is enabled Extended system ID is disabled Portfast Default is disabled PortFast...
spanning-tree loopguard default spanning-tree extend system-id no spanning-tree vlan 43,125,402,404,406,409,412,414-415,418-420,422-424,426 < --- STP disabled on these Vlans no spanning-tree vlan 427,430 spanning-tree vlan 1-1005 priority 40960 交换...
Switch(config-if)#spanning-tree guard root/---启用Root Guard特性---/ 注意,Root Guard和Loop Guard特性不可同时使用,也不要在启用了Uplink Fast特性的端口上启用该特性.该特性一旦配置后,对所有VLAN都生效. 另外,也可以使用Loop Guard技术替代端口(AP)或RP由于单向链路的故障问题成为指定端口(DP): 如上图,...
21、 loopguard default接口开启config-if# spanning-tree guard looploopguard 以vlan为检测对象;loopguard基于端口基于vlan可以UDLD基于端口基于端口可以配置检测对象防止单向BPDU故障导致的stp故障防止问题不能发送BPDU引导的故障可以不可以防止配线错误引起的STP故障不可以可以实际情况中,优于中的故障引起的BPDU故障较少出...
Coreswitch1(config)#spanning-tree loopguard default Coreswitch1(config)#no spanning-tree optimize bpdu transmission Coreswitch1(config)#spanning-tree extend system-id Coreswitch1(config)#spanning-tree pathcost method long Coreswitch1(config)#interface Vlan10 Coreswitch1(config-if)#Ip address 172.16...
SwitchA#show run | i spanning spanning-tree mode rapid-pvst spanning-tree loopguard default spanning-tree extend system-id SwitchB#show run | i spanning spanning-tree mode pvst spanning-tree extend system-id I have this problem too Labels: Other Switching 0...
Do not enable Loopguard on vPC (disabled by default) Do not enable Bridge Assurance on vPC 为了便于操作和快速诊断,以下建议适用于vPC环境中的STP Configure the Spanning Tree Protocol root for all VLAN on vPC primary device (spanning-tree vlan 100-102 root primary) ...
N7K-4(config)#no spanning-tree vlan 10 root secondary N7k-4(config)# vpc domain 7 N7k-4(config-vpc-domain)# peer-switch 配置特性之前 配置特性之后 Autorecovery特性 该特性默认开启。 如果两个vPC交换机同时重启。默认在两个vPC设备的邻接关系建立起来之前,所有的vPC都将被挂起。 如果仅仅只有一个vPC...
配置Loop Guard: Switch(config)#spanning-tree loopguard default/---启用Loop Guard特性---/ 注意,Loop Guard和Root Guard特性不可同时使用.