Dual homing uplink - active / standby / load

The main equipment

L1
establish vlan, Divide interfaces （ The division is in l3）

vlan batch 2 to 3
stp enable
stp mode mstp
stp region-configuration 
region-name ZB
revision-level 1
instance 1 vlan 2 to 3
active region-configuration   // Activate configuration 

stp instance 1 root primary 

L2

vlan batch 2 to 3

stp region-configuration 
region-name ZB
revision-level 1
instance 1 vlan 2 to 3
active region-configuration 

stp instance 1 root secondary

L3

vlan batch 2 to 3

port-group group-member g0/0/1 to g0/0/9
port link-type access 
port default vlan 2

port-group group-member g0/0/10 to g0/0/19
port link-type access 
port default vlan 3

int g0/0/23
port link-type trunk 
undo port trunk allow-pass vlan 1  // prevent VLAN1 flip out 

int g0/0/24
port link-type trunk 
undo port trunk allow-pass vlan 1

load

L4

vlan batch 2 to 3

int eth-trunk 1
trunkport g0/0/1
trunkport g0/0/2

stp enable
stp mode mstp
stp region-configuration
region-name FZ
revision-level 1
instance 1 vlan 2 
instance 2 vlan 3
active region-configuration
stp instance 1 root primary // Set to vlan2 Main root bridge 
stp instance 2 root secondary // Set to vlan3 Spare root bridge 

L5

vlan batch 2 to 3

int eth-trunk 1
trunkport g0/0/1
trunkport g0/0/2


stp region-configuration
region-name FZ
revision-level 1
instance 1 vlan 2 
instance 2 vlan 3
active region-configuration
stp instance 1 root secondary // Set to vlan2 Spare root bridge 
stp instance 2 root primary // Set to vlan3 The main root bridge 

L6

vlan batch 2 to 3

port-group group-member g0/0/1 to g0/0/9
port link-type access 
port default vlan 2

port-group group-member g0/0/10 to g0/0/19
port link-type access 
port default vlan 3

int g0/0/23
port link-type trunk 
undo port trunk allow-pass vlan 1

int g0/0/24
port link-type trunk 
undo port trunk allow-pass vlan 1

stp region-configuration
region-name FZ
revision-level 1
instance 1 vlan 2
instance 2 vlan 3
active region-configuration