3Com 4210G Series, Configuration Manual, Page: 721 / 1133

1-13
Device ID of the last flush packet : 000f-e23d-5af0
Control VLAN of the last flush packet : 1
Multiple Smart Link Groups Load Sharing Configuration Example
Network requirements
As shown in Figure 1-3 :
z
Traffic of VLANs 1 through 200 on Device C are dually uplinked to Device A by Device B and
Device D. Implement load sharing to uplink the traffic of VLANs 1 through 100 and the traffic of
VLANs 101 through 200 over different links to Device A.
z
Implement dual uplink backup on Device C: traffic of VLANs 1 through 100 (mapped to MSTI 0) is
uplinked to Device A by Device B; 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.
z
The control VLAN of smart link group 1 is VLAN 10 and that of smart link group 2 is VLAN 101.
Figure 1-3
Multiple smart link groups load sharing configuration
Device A
Device D Device B
GE
1/0
/1
GE1/0
/2
GE
1/0
/1
GE1/0
/1
GE1/0
/2
GE
1/0
/2
Device C
GE1/0
/1
GE
1/0
/2
Configuration procedure
1) Configuration on Device C
# Create VLAN 1 through VLAN 200, map VLAN 1 through VLAN 100 to MSTI 0 and VLAN 101
through VLAN 200 to MSTI 2, and activate MST region configuration.
<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 GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 separately, configure the ports as
trunk ports, and assign them to VLAN 1 through VLAN 200.
[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