You can use the display smart-link flush command to display the flush messages received on each
device. For example:
# Display the flush messages received on Device B.
[DeviceB] display smart-link flush
Received flush packets
Receiving interface of the last flush packet
Receiving time of the last flush packet
Device ID of the last flush packet
Control VLAN of the last flush packet
Multiple Smart Link Groups Load Sharing Configuration Example
As shown in
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.
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
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
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] 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
: 16:25:21 2009/02/21