华为交换机路由策略配置案例（华为交换机MSTP协议实例配置）
华为交换机路由策略配置案例（华为交换机MSTP协议实例配置）vlan batch 10 20 30 40Stp mod mstp (华为交换机默认STP模式为MSTP)SW2为实例2的主根桥，实例1的次根桥SW1配置命令：Stp enable （开启STP）
实例：在三台交换机上启用MSTP（多实例生成树协议）
组网图：
组网图及配置需求
SW1为实例1的主根桥，实例2的次根桥
SW2为实例2的主根桥，实例1的次根桥
SW1配置命令：
Stp enable （开启STP）
Stp mod mstp (华为交换机默认STP模式为MSTP)
vlan batch 10 20 30 40
stp region-configuration
region-name huawei （定义域名为：huawei）
revision-level 1
instance 1 VLAN 10 20 (定义实例1中映射的VLAN 10和20)
instance 2 vlan 30 40 (定义实例2中映射的VLAN 30和40)
active region-configuration
quit
stp instance 1 root primary （配置实例1为主根（primary））
stp instance 2 root secondary （配置实例2为次根（secondary））
interface GigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 10 20 30 40
#
interface GigabitEthernet0/0/2
port link-type trunk
port trunk allow-pass vlan 10 20 30 40
SW2配置文件：
#
sysname SW2
#
vlan batch 10 20 30 40
#
stp instance 1 root secondary
stp instance 2 root primary
#
stp region-configuration
region-name huawei
revision-level 1
instance 1 vlan 10 20
instance 2 vlan 30 40
active region-configuration
#
interface GigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 10 20 30 40
#
interface GigabitEthernet0/0/2
port link-type trunk
port trunk allow-pass vlan 10 20 30 40
SW3配置文件：
#
sysname SW3
#
vlan batch 10 20 30 40
#
stp region-configuration
region-name huawei
revision-level 1
instance 1 vlan 10 20
instance 2 vlan 30 40
active region-configuration
#
interface GigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 10 20 30 40
#
interface GigabitEthernet0/0/2
port link-type trunk
port trunk allow-pass vlan 10 20 30 40
SW1查看验证配置结果：
<SW1>dis stp brief
MSTID Port Role STP State Protection
0 GigabitEthernet0/0/1 ALTE DISCARDING NONE
0 GigabitEthernet0/0/2 ROOT FORWARDING NONE
1 GigabitEthernet0/0/1 DESI FORWARDING NONE
1 GigabitEthernet0/0/2 DESI FORWARDING NONE
2 GigabitEthernet0/0/1 ROOT FORWARDING NONE
2 GigabitEthernet0/0/2 DESI FORWARDING NONE
SW2查看验证配置结果：
<SW2> dis stp br
MSTID Port Role STP State Protection
0 GigabitEthernet0/0/1 ROOT FORWARDING NONE
0 GigabitEthernet0/0/2 DESI FORWARDING NONE
1 GigabitEthernet0/0/1 DESI FORWARDING NONE
1 GigabitEthernet0/0/2 ROOT FORWARDING NONE
2 GigabitEthernet0/0/1 DESI FORWARDING NONE
2 GigabitEthernet0/0/2 DESI FORWARDING NONE
SW3查看验证配置结果：
<SW3>dis stp brief
MSTID Port Role STP State Protection
0 GigabitEthernet0/0/1 DESI FORWARDING NONE
0 GigabitEthernet0/0/2 DESI FORWARDING NONE
1 GigabitEthernet0/0/1 ROOT FORWARDING NONE
1 GigabitEthernet0/0/2 ALTE DISCARDING NONE 实例1中的非根端口阻塞
2 GigabitEthernet0/0/1 ALTE DISCARDING NONE 实例2中的非根端口阻塞
2 GigabitEthernet0/0/2 ROOT FORWARDING NONE
