switchxxxxxx(config)#spanning-tree priority12288 spanning-tree disable Use thespanning-tree disableInterface (Ethernet, Port Channel) Configuration mode command to disable the spanning tree on a specific port. Use thenoform of this command to enable the spanning tree on a port. Syntax spa...
Switch#sh spanning-tree //查看spanning-tree状态信息 Switch(config)#spanning-tree vlan 10 //针对vlan10开启spanning-tree(默认pvst+) Switch(config)#spanning-tree mode {mst | pvst | rapid-pvst} //设置spanning-tree模式,默认pvst+ Switch(config)#spanning-tree vlan 10 priority 4096 //设置[针对vlan...
spanning-tree port-priority spanning-tree cost spanning-tree port type spanning-tree guard spanning-tree bpdufilter clear spanning-tree counters spanning-tree mst max-hops spanning-tree mst priority spanning-tree mst vlan spanning-tree mst revision spanning-tree mst name spanning-tree mst root spannin...
Switch(config-if)# spanning-tree mst 1 port-priority 240 Switch(config-if)# ^Z Switch# show spanning-tree mst 1 interface fastethernet 4/4 FastEthernet4/4 of MST01 is backup blocking Edge port:no (default) port guard :none (default) Link type:point-to-point (auto) bpdu ...
进程2000 默认 SW1 0/0 口是根端口,现在让 0/1 口做根端口 可以改 SW2 0/1 口的 port ID SW2(config)#interface ethernet 0/1 SW2(config-if)#spanning-tree mst 2000 port-priority 64 //默认是 128,改 64 的倍数 。 此时Et0/1 口就为根端口了。
Spanning treeprotocol生成树协议 STP的作用是防止广播风暴和桥接表的错误。 交换机发生广播风暴时的表现是所有的端口指示灯闪烁,cup利用率不断升高,网络中的主机不能正常通信,交换机死机。 环路描述 站点A将数据帧传送到网段A,网段A上的网桥分别在端口1/1、2/1上接收到了该数据帧,并构建MAC地址表记录站点A分别位...
8octets 2octets 2octets 2octets2octets2octets BridgeIDPortIDMessageAgeMaxAgeHelloTimeForwardDelay Version1Length RootMessageAge=020Seconds2Seconds15Seconds Totallength=36bytes RSTPBPDUFormat 2octets1octet1octets1octets ProtocolIDVersionBPDUType BPDUFlagsRootID CostofPath Ver2RSTP02RSTBPDU2-bytepriority ...
生成树(spanningtree)的理解 1.冗余网桥连接。 用网桥(或交换机,后代称二层设备)连接两个(这里简化,只讨论 两个。多个等同)网段,可分割碰撞,提高媒介使用率。同时,我们 希望用两个或更多的网桥连接两个网段,以做到当某个网桥发生故障 时,网络连接不致中断,那就用下图的方法: ..|---Port1--Bridge1--Port...
You can configure BPDU guard to protect the spanning tree topology from unauthorized switches affecting the forwarding path. For example, if you add a new switch to an access port off a leaf switch and this new switch is configured with a low priority, it might become the new...
BPDU is a kind of packet that is used to generate and maintain the spanning tree. The BPDUs (Bridge Protocol Data Unit) contain a lot of information, like bridge ID, root path cost, port priority and so on. Switches share these information to help determine the spanning tree topology....