Configuration requirements ：
share 4 individual vlan 10 20 30 40
Ask for vlan10 20 Add examples 1
vlan30 40 Add examples 2 

The network topology is as follows ：

Switch 1 To configure ：

[Huawei]vlan batch 10 20 30 40
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]port link-type trunk  
[Huawei-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[Huawei-GigabitEthernet0/0/1]int g0/0/2
[Huawei-GigabitEthernet0/0/2]port link-type trunk  
[Huawei-GigabitEthernet0/0/2]port trunk allow-pass vlan all
The above configuration is to create VLAN And release all ports VLAN

[Huawei]stp mode mstp  　　　　　　　（stp The mode is set to  mstp　 Huawei switches are enabled by default  mstp）
[Huawei]stp region-configuration             （ Configuration domain ）
[Huawei-mst-region]region-name GRQ   （ Configure the domain name ）
[Huawei-mst-region]revision-level 10      （ Revision level ）
[Huawei-mst-region]instance 1 vlan 10 20 （ Configure the instance 1 And bind the vlan10 20）
[Huawei-mst-region]instance 2 vlan 30 40 （ Configure the instance 2 And bind the vlan30 40）  
[Huawei-mst-region]active  region-configuration 【 Activate domain configuration （ It will not take effect until activated ）】
The above configuration should be consistent on other switches

Switch 2 To configure ：

[Huawei]vlan batch 10 20 30 40
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]port link-type trunk  
[Huawei-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[Huawei-GigabitEthernet0/0/1]int g0/0/2
[Huawei-GigabitEthernet0/0/2]port link-type trunk  
[Huawei-GigabitEthernet0/0/2]port trunk allow-pass vlan all
[Huawei]stp mode mstp  　　　　　　
[Huawei]stp region-configuration             
[Huawei-mst-region]region-name GRQ   
[Huawei-mst-region]revision-level 10      
[Huawei-mst-region]instance 1 vlan 10 20 
[Huawei-mst-region]instance 2 vlan 30 40 
[Huawei-mst-region]active  region-configuration 
The above configuration is consistent with that of other switches

[Huawei]stp instance 1 priority 0　　　　（ Configure the instance 1 The priority of 4096）
[Huawei]stp instance 2 priority 4096　　（ Configure the instance 2 The priority of 0）
[Huawei]stp instance 0 priority 0　　　　（ Configure the instance 0 The priority of 4096）（ example 0 Is not added to the instance vlan, Such as vlan1）

Switch 3 To configure ：

[Huawei]vlan batch 10 20 30 40
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]port link-type trunk  
[Huawei-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[Huawei-GigabitEthernet0/0/1]int g0/0/2
[Huawei-GigabitEthernet0/0/2]port link-type trunk  
[Huawei-GigabitEthernet0/0/2]port trunk allow-pass vlan all
[Huawei]stp mode mstp  　　　　　　
[Huawei]stp region-configuration             
[Huawei-mst-region]region-name GRQ   
[Huawei-mst-region]revision-level 10      
[Huawei-mst-region]instance 1 vlan 10 20 
[Huawei-mst-region]instance 2 vlan 30 40 
[Huawei-mst-region]active  region-configuration 
The above configuration is consistent with that of other switches

[Huawei]stp instance 1 priority 4096
[Huawei]stp instance 2 priority 0　　　
[Huawei]stp instance 0 priority 4096　
The above configuration is the same as that of the switch 2 cross
 

  At the switch 1 Check whether the configuration is correct

  Pictured ： For example 1 Come on ,1 Port is the root port ,2 Port number is blocking port