sys
stp enable
stp mode mstp
stp region-configuration
region-name ntd1902
instance 1 vlan 10 20
instance 2 vlan 30 40
active region-configuration
stp instance 1 priority 4096
stp instance 2 priority 4096

sys
stp enable
stp mode mstp
stp region-configuration
region-name ntd1902
instance 1 vlan 10 20
instance 2 vlan 30 40
active region-configuration
stp instance 2 priority 8192
stp instance 1 priority 8192