Switch(config-if)# spanning-tree portfast edge 监控和故障排除: 使用show spanning-tree命令查看STP的状态和配置。 使用show spanning-tree interface <interface-name> detail命令查看特定端口的STP详细信息。 如果端口被BPDU Guard置于err-disable状态,可以使用errdisable recovery cause bpduguard命令自动恢复...
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portfast只能用在接入层,也就是说交换机的端口是接HOST的才能起用portfast,如果是接交换机的就一定不能启用,否则会造成新的环路. 起用portfast往往是因为一些应用的要求,cisco是建议将符合条件的port设置成portfast的. PS: 将SWITCH的端口设置为spanning-tree portfast后,如果这个端口接到其他SWITCH或者HUB上就可能造成环...
如下图所示:在某些情况下,因为运行不同的协议,导致Cisco的spanning-tree生成树计算结果与Juniper的计算结果不一致,Cisco切断了左边端口,而Juniper切断了右边的端口。从而在平滑迁移过程中,Cisco和Juniper互联的临时线路被Spanning-tree完全阻断。 问题分析: 乍看之下,觉得两个完全不同的厂商协议,肯定没法互联互通。但是如...
Enabling PortFast on a Trunk Port Task Command Step 1 Enable PortFast on a trunk port that is connected to a single workstation, switch, or server. set spantree portfast mod_num/port_num enable trunk Note https://www.cisco.com/c/dam/en/us/td/i/templates/blank.gifIf you enter...
Enabling PortFast on a Trunk Port Task Command Step 1 Enable PortFast on a trunk port that is connected to a single workstation, switch, or server. set spantree portfast mod_num/port_num enable trunk Note https://www.cisco.com/c/dam/en/us/td/i/templates/blank.gifIf you enter...
SW13# show spanning-tree summary Switch is inpvstmode Root bridgefor: VLAN0001, VLAN0010, VLAN0020 Extended system ID is enabled PortfastDefault is disabled Portfast Edge BPDU Guard Default is disabled Portfast Edge BPDU Filter Default is disabled ...
Hello Rene, I received one of the virl switch images and was building a lab testing spanning tree. Can you tell me what is the difference between the commands listed below: #spanning-tree portfast edge #spanning-tree…
spanning-tree portfast edge: spanning-tree portfast is enabled. spanning-tree portfast network: spanning-tree portfast auto is disabled. Example This command configures interface ethernet 5 as a network port. switch(config)# interface ethernet 5 switch(config-if-Et5)# spanning-tree portfast network...
You usualy configure portfast on the interface connecting to the ESX server. This will identify the port as an edge port to 802.1w. Lease spanning-tree in place just in case a virtual server is misconfigured. 0 Helpful Reply Pim Scheffers Level 1 In response to dominic.caron 02-09...