H3C LS-3100-52P-OVS-H3 Operation Manual page 114

The traffic of VLAN 1 through VLAN 200 on Device C are dually uplinked to Device A by Device B
and Device D. Implement load sharing to uplink the traffic of VLAN 1 through VLAN 100 and the
traffic of VLAN 101 through VLAN 200 over different links to Device A.
Implement dual link backup on Device C: the traffic of VLANs 1 through 100 (mapped to MSTI 0) is
uplinked to Device A by Device B; the traffic of VLANs 101 through 200 (mapped to MSTI 2) is
uplinked to Device A by Device D. Smart link group 1 references MSTI 0, and smart link group 2
references MSTI 2.
The control VLAN of smart link group 1 is VLAN 10 and that of smart link group 2 is VLAN 101.
Figure 1-3 Network diagram for multiple smart link groups load sharing configuration
Device A
GE1/0/1
GE1/0/1
GE1/0/2
Device B
GE1/0/1
Device C
Configuration procedure
1) Configuration on Device C
# Create VLANs and configure VLAN-to-MSTI mappings.
<DeviceC> system-view
[DeviceC] vlan 1 to 200
[DeviceC] stp region-configuration
[DeviceC-mst-region] instance 0 vlan 1 to 100
[DeviceC-mst-region] instance 2 vlan 101 to 200
[DeviceC-mst-region] active region-configuration
[DeviceC-mst-region] quit
# Disable STP on the ports, configure the ports as trunk ports, and configure the ports to allow packets
from VLAN 1 through 200 to pass through.
[DeviceC] interface gigabitethernet 1/0/1
[DeviceC-GigabitEthernet1/0/1] undo stp enable
[DeviceC-GigabitEthernet1/0/1] port link-type trunk
[DeviceC-GigabitEthernet1/0/1] port trunk permit vlan 1 to 200
[DeviceC-GigabitEthernet1/0/1] quit
[DeviceC] interface gigabitethernet 1/0/2
[DeviceC-GigabitEthernet1/0/2] undo stp enable
[DeviceC-GigabitEthernet1/0/2] port link-type trunk
[DeviceC-GigabitEthernet1/0/2] port trunk permit vlan 1 to 200
[DeviceC-GigabitEthernet1/0/2] quit
# Create smart link group 1.
[DeviceC] smart-link group 1
GE1/0/2
GE1/0/1
GE1/0/2
Device D
GE1/0/2
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