10分钟带你了解MSTP协议，附加配置MSTP实验

10分钟带你了解MSTP协议，附加配置MSTP实验

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：

<Huawei>system-view 
[1]sysname W1
[W1] vlan batch 10 20
W1]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 20
Info: 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-configuration
Info: 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>sys	
<Huawei>system-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 24
Apr 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 24
Apr 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

连接：