Run theterminal debuggingandterminal monitorcommands before using this command. Configuration Impact The debugging command affects system performance. After debugging is complete, run the undo command immediatel
Spanning tree protocol commands LAN Switching Command Reference, Cisco IOS XE Release 3SE (Catalyst 3850 Switches) Error Message Decoder DescriptionLink To help you research and resolve system error messages in this release, use the Error Message Decoder tool. https:/...
快速收敛: RSTP(Rapid Spanning Tree Protocol)是STP的改进版本,支持更快的收敛时间。 端口类型: 端口可以是根端口、指定端口、备选根端口或阻塞端口,具体取决于设备的位置和拓扑结构。 STP的变种: 除了STP,还有诸如RSTP和MSTP等STP的变种,它们在性能和功能上有所不同。 BPDU过滤和保护: 通过配置可以过滤或保护某些...
指定端口是指用来传递消息的端口 首先需要确认的一点就是,根网桥上的所有端口都是指定端口。 这个应该就很好理解了,根网桥,所有的端口肯定都要传递数据转发数据帧的,总不至于把根都切断了吧(断。。。根。。。断子绝孙?😱👀) 所以指定端口是在非根网桥上进行选择的,需要遵循以下四步: BPDU中的根网桥ID 到达...
spanning-tree bpdu (Global) Use thespanning-tree bpduGlobal Configuration mode command to define Bridge Protocol Data Unit (BPDU) handling when the spanning tree is disabled globally or on a single interface. Use thenoform of this command to restore the default configuration. ...
# In PVST mode, display the spanning tree status and statistics for all ports in all VLANs. <Sysname> system-view [Sysname] stp mode pvst [Sysname] display stp ---[VLAN 1 Global Info]--- Protocol status : Enabled Bridge ID : 32768.000f-e200...
# In PVST mode, display the spanning tree status and statistics for all ports in all VLANs. <Sysname> system-view [Sysname] stp mode pvst [Sysname] display stp ---[VLAN 1 Global Info]--- Protocol status : Enabled Bridge ID : 32768.000f-e200-2...
Because STP is unable to recognize VLANs and usually exhibits poor performance overall, STP is not the preferred spanning tree protocol to use in VLAN-rich environments. However, all participating interfaces in the spanning tree must use the same spanning tree protocol at any given time. Thus, ...
Device Management Diagnostic Commands Interface Management Diagnostic Commands Ethernet Switching Diagnostic Commands MAC Diagnostic Commands Eth-Trunk Diagnostic Commands LACP Diagnostic Commands VLAN Diagnostic Commands QinQ Diagnostic Commands GVRP Diagnostic Commands Spanning Tree Protocol Diagnostic Command...
Spanning Tree Protocol(STP) 二层环路 存在单点隐患 冗余拓扑 广播风暴 多帧复制 MAC表紊乱 生成树的概念 采用生成树STP解决环路(默认开启) Spanning-Tree Protocol 通过将特定的端口选为Blocking state,来实现无环的拓扑; IEEE 802.1D规定了这一行为;