2024年8月21日 19:45:39

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+#　MSTP
+
+![image-20240821193420313](https://picgo-noriu.oss-cn-beijing.aliyuncs.com/Images/image-20240821193420313.png)
+
+### 一、配置
+
+- **SW1**
+
+  ```
+  <Huawei>u t m
+  <Huawei>sy
+  [Huawei]sy SW1
+  [SW1]vlan batch 10 20
+  [SW1]port-group 1
+  [SW1-port-group-1]group-member g0/0/1 g0/0/2
+  [SW1-port-group-1]port link-type trunk 
+  [SW1-port-group-1]port trunk allow-pass vlan 10 20
+  [SW1-port-group-1]quit
+  [SW1]stp mode mstp
+  [SW1]stp region-configuration 
+  [SW1-mst-region]region-name ntd
+  [SW1-mst-region]instance 1 vlan 10
+  [SW1-mst-region]instance 2 vlan 20	
+  [SW1-mst-region]active region-configuration 	
+  [SW1]stp instance 1 priority 4096
+  [SW1]quit
+  <SW1>save
+  ```
+
+- **SW2**
+
+  ```
+  <Huawei>u t m
+  <Huawei>sy
+  [Huawei]sy SW2
+  [SW2]vlan batch 10 20
+  [SW2]port-group 1
+  [SW2-port-group-1]group-member g0/0/1 g0/0/2
+  [SW2-port-group-1]port link-type trunk 
+  [SW1-port-group-1]port trunk allow-pass vlan 10 20
+  [SW2-port-group-1]quit
+  [SW2]stp mode mstp
+  [SW2]stp region-configuration 
+  [SW2-mst-region]region-name ntd  
+  [SW2-mst-region]instance 1 vlan 10  
+  [SW2-mst-region]instance 2 vlan 20 
+  [SW2-mst-region]active region-configuration 
+  [SW2-mst-region]quit
+  [SW2]stp instance 2 priority 4096
+  [SW2]quit
+  <SW2>save
+  ```
+
+- **SW3**
+
+  ```
+  <Huawei>u t m
+  <Huawei>sy
+  [Huawei]sy SW3
+  [SW3]vlan batch 10 20
+  [SW3]int g0/0/1 
+  [SW3-GigabitEthernet0/0/1]port link-type access 
+  [SW3-GigabitEthernet0/0/1]port default vlan 10
+  [SW3-GigabitEthernet0/0/1]int g0/0/2
+  [SW3-GigabitEthernet0/0/2]port link-type access 
+  [SW3-GigabitEthernet0/0/2]port default vlan 20
+  [SW3-GigabitEthernet0/0/2]quit
+  [SW3]port-group 1
+  [SW3-port-group-1]group-member g0/0/3 g0/0/4
+  [SW3-port-group-1]port link-type trunk 
+  [SW3-port-group-1]quit
+  [SW3]stp mode mstp
+  [SW3]stp region-configuration 
+  [SW3-mst-region]region-name ntd
+  [SW3-mst-region]instance 1 vlan 10   
+  [SW3-mst-region]instance 2 vlan 20
+  [SW3-mst-region]active region-configuration 
+  [SW3-mst-region]quit
+  [SW3]quit
+  <SW3>save
+  ```
+
+
+### 二、测试
+
+- **SW1**
+
+  ```
+  <SW1>dis stp ins 1 b
+   MSTID  Port                        Role  STP State     Protection
+     1    GigabitEthernet0/0/1        DESI  FORWARDING      NONE
+     1    GigabitEthernet0/0/2        DESI  FORWARDING      NONE
+  <SW1>dis stp ins 2 b
+   MSTID  Port                        Role  STP State     Protection
+     2    GigabitEthernet0/0/1        ALTE  DISCARDING      NONE
+     2    GigabitEthernet0/0/2        ROOT  FORWARDING      NONE
+  ```
+
+- **SW2**
+
+  ```
+  <SW2>dis stp ins 1 b
+   MSTID  Port                        Role  STP State     Protection
+     1    GigabitEthernet0/0/1        ALTE  DISCARDING      NONE
+     1    GigabitEthernet0/0/2        ROOT  FORWARDING      NONE
+  <SW2>dis stp ins 2 b
+   MSTID  Port                        Role  STP State     Protection
+     2    GigabitEthernet0/0/1        DESI  FORWARDING      NONE
+     2    GigabitEthernet0/0/2        DESI  FORWARDING      NONE
+  ```
+
+- **SW3**
+
+  ```
+  <SW3>dis stp ins 1 b
+   MSTID  Port                        Role  STP State     Protection
+     1    GigabitEthernet0/0/1        DESI  FORWARDING      NONE
+     1    GigabitEthernet0/0/3        ROOT  FORWARDING      NONE
+     1    GigabitEthernet0/0/4        DESI  FORWARDING      NONE
+  <SW3>dis stp ins 2 b
+   MSTID  Port                        Role  STP State     Protection
+     2    GigabitEthernet0/0/2        DESI  FORWARDING      NONE
+     2    GigabitEthernet0/0/3        DESI  FORWARDING      NONE
+     2    GigabitEthernet0/0/4        ROOT  FORWARDING      NONE
+  ```
+
+  
+