5-27
Figure 5-10
Network diagram for intersecting-ring load balancing configuration
Configuration procedure
1) Configuration on Device A
# Create VLANs 10 and 20, map VLAN 10 to MSTI 1 and VLAN 20 to MSTI 2, and activate MST
region configuration.
<DeviceA> system-view
[DeviceA] vlan 10
[DeviceA-vlan10] quit
[DeviceA] vlan 20
[DeviceA-vlan20] quit
[DeviceA] stp region-configuration
[DeviceA-mst-region] instance 1 vlan 10
[DeviceA-mst-region] instance 2 vlan 20
[DeviceA-mst-region] active region-configuration
[DeviceA-mst-region] quit
# Disable physical state change suppression and STP on GigabitEthernet 1/0/1 and
GigabitEthernet 1/0/2, configure the two ports as trunk ports, and assign them to VLAN 10 and
VLAN 20, and configure them to trust the 802.1p precedence of the received packets.
[DeviceA] interface gigabitethernet 1/0/1
[DeviceA-GigabitEthernet1/0/1] undo link-delay
[DeviceA-GigabitEthernet1/0/1] undo stp enable
[DeviceA-GigabitEthernet1/0/1] port link-type trunk
[DeviceA-GigabitEthernet1/0/1] port trunk permit vlan 10 20
[DeviceA-GigabitEthernet1/0/1] qos trust dot1p
[DeviceA-GigabitEthernet1/0/1] quit
[DeviceA] interface gigabitethernet 1/0/2
[DeviceA-GigabitEthernet1/0/2] undo link-delay
[DeviceA-GigabitEthernet1/0/2] undo stp enable
[DeviceA-GigabitEthernet1/0/2] port link-type trunk
[DeviceA-GigabitEthernet1/0/2] port trunk permit vlan 10 20