10分钟带你了解MSTP协议，附加配置MSTP实验
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10分钟带你了解MSTP协议，附加配置MSTP实验
目录
一 MSTP协议
【1】STP和RSTP的局限性
【2】关于MSTP
【3】MSTP的基本思想
【4】MSTP的功能
【5】三种生成树的比较
【6】MSTP的域
【7】配置MSTP
二MTP实验题
一.MSTP协议
STP生成树协议 RSTP快速生成树协议 MATP多生成树协议 【1】STP和RSTP的局限性：所有VLAN 共享一颗生成树，无法实现多条VLAN再链路上的负载分担 【2】关于MSTP:
【3】MSTP的基本思想： 
【4】MSTP的功能：mstp为每个实例计算出一颗树，防环的同时进行了冗余备份，实现VLAN之间的负载分担
【5】三种生成树的比较： 
【6】MSTP的域： 
注意：域名相同，修订级别（0-65535，默认为0）。VLAN映射（VLAN与映射的关系）三者都相同为一个域 
【7】配置MSTP 【1.1】区域配置 
注：instance 0为默认实例，如通VLAN1一样 【2.2】配置实例与vlan的映射关系，激活域
【3.3】配置交换机在每个实例中根的情况 
注：修改优先级必须是4096的倍数，最小为0 二.实验题
SW1的代码： system-view [1]sysname W1[W1] vlan batch 10 20W1]int e0/0/1[W1-Ethernet0/0/1]port hybrid pvid vlan 10[W1-Ethernet0/0/1]port hybrid untagged vlan 10 20[W1-Ethernet0/0/1]int e0/0/1[W1-Ethernet0/0/1]int g0/0/2[W1-GigabitEthernet0/0/2]p l t[W1-GigabitEthernet0/0/2]p l a v a ^Error:Ambiguous command found at '^' position.[W1-GigabitEthernet0/0/2]p t a v a[W1-GigabitEthernet0/0/2]int e0/0/2[W1-Ethernet0/0/2]port hybrid pvid 10 ^Error: Unrecognized command found at '^' position.[W1-Ethernet0/0/2]port hybrid pvid vlan 10[W1-Ethernet0/0/2]port hybrid untagged vlan 10 20[W1-Ethernet0/0/2]q[W1]stp region-c [W1]stp region-configuration [W1-mst-region]region-na [W1-mst-region]region-name WW[W1-mst-region]instance 1 vlan 10[W1-mst-region]instance 2 vlan 20[W1-mst-region]active [W1-mst-region]active re [W1-mst-region]active region-configuration Info: This operation may take a few seconds. Please wait for a moment...done.[W1-mst-region]stp instance [W1-mst-region]stp instance 1 root [W1-mst-region]stp instance 1 root primary [W1-mst-region]stp instance 1 root primary[W1]stp re [W1]stp region-configuration [W1-mst-region]stp instancce 2 root secondary ^Error: Unrecognized command found at '^' position.[W1-mst-region]stp instance 2 root secondary
SW2的代码
W2]vlan batch 10 20Info: This operation may take a few seconds. Please wait for a moment...done.[W2]int e0/0/1[W2-Ethernet0/0/1]p h p v 20[W2-Ethernet0/0/1]p h u v 10 20[W2-Ethernet0/0/1]int g0/0/2[W2-GigabitEthernet0/0/2]p l t [W2-GigabitEthernet0/0/2]p t a v a [W2-GigabitEthernet0/0/2]int e0/0/2[W2-Ethernet0/0/2]port hybrid pvid 20 ^Error: Unrecognized command found at '^' position.[W2-Ethernet0/0/2]port hybrid pvid vlan 20[W2-Ethernet0/0/2]port hybrid untagged vlan 10 20[W2-Ethernet0/0/2]q[W2]stp re [W2]stp region-configuration [W2-mst-region]region- [W2-mst-region]region-name WW[W2-mst-region]instance 1 vlan 10 [W2-mst-region]instance 2 vlan 20[W2-mst-region]active region-configurationInfo: This operation may take a few seconds. Please wait for a moment...done.[W2-mst-region]stp instance 2 root primary[W2]stp region- [W2]stp region-configuration [W2-mst-region]stp instance 1 root secondary
SW2的代码
Huawei]vlan batch 10 20 Info: This operation may take a few seconds. Please wait for a moment...done.[Huawei]int e0/0/1[Huawei-Ethernet0/0/1]port hybrid untagged vlan 10 20[Huawei-Ethernet0/0/1]port hybeid pvid vlan 10 ^Error: Unrecognized command found at '^' position.[Huawei-Ethernet0/0/1]port hybrid pvid vlan 10[Huawei-Ethernet0/0/1]int e 0/0/3[Huawei-Ethernet0/0/3]port hybrid pvid vlan 10[Huawei-Ethernet0/0/3]port hybrid tagged vlan 10 20[Huawei-Ethernet0/0/3]int e0/0/4[Huawei-Ethernet0/0/4]port hybrid pvid vlan 20[Huawei-Ethernet0/0/4]port hybrid untagged vlan 10 20[Huawei-Ethernet0/0/4]int e0/0/3[Huawei-Ethernet0/0/3]undo port hybrid tagged vlan 10 20[Huawei-Ethernet0/0/3]port hybrid untagged vlan 10 20[Huawei-Ethernet0/0/3]int e0/0/2[Huawei-Ethernet0/0/2]port hybrid pvid vlan 20[Huawei-Ethernet0/0/2]port hybrid untagged vlan 10 20 [Huawei-Ethernet0/0/2]re [Huawei-Ethernet0/0/2]restart [Huawei-Ethernet0/0/2]q[Huawei]re [Huawei]stp region-configuration[Huawei-mst-region]region-name WW[Huawei-mst-region]instance 1 vlan 10[Huawei-mst-region]instance 2 vlan 20
R1的代码
Huawei>syssystem-view Enter system view, return user view with Ctrl+Z.[Huawei]sys [Huawei]sysname R1[R1]INT [R1]interface G0/0/0[R1-GigabitEthernet0/0/0]IP ADDRESS 192.168.10.1 24Apr 11 2021 20:16:17-08:00 R1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP on the interface GigabitEthernet0/0/0 has entered the UP state. [R1-GigabitEthernet0/0/0]int g0/0/1[R1-GigabitEthernet0/0/1]ip address 192.168.20.1 24Apr 11 2021 20:16:54-08:00 R1 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP on the interface GigabitEthernet0/0/1 has entered the UP state. [R1-GigabitEthernet0/0/1]q[R1]int loopback 0[R1-LoopBack0]ip address 1.1.1.1 24
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