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Smart Link Configuration Examples
Single Smart Link Group Configuration Example
Network requirements
As shown in
z
Device C and Device D are smart link devices, and Device A, Device B, and Device E are
associated devices. Traffic of VLANs 1 through 30 on Device C and Device D are dually uplinked
to Device A.
z
Configure Smart Link on Device C and Device D for dual uplink backup.
Figure 6-2
Network diagram for single smart link group configuration
Device A
Device E
Device D
Device C
Device B
GE
1/0
/1
GE
1/0
/2
GE
1/0
/1
GE
1/0
/1
GE
1/0
/2
GE
1/0
/2
GE1/0/3
GE1/0/1
GE1/0/2
GE1/0/3
GE1/0/1
GE1/0/2
Master link
Slave link
Smart link group
Configuration procedure
1) Configuration on Device C
# Create VLANs 1 through 30, map these VLANs to MSTI 1, and activate the MST region
configuration.
<DeviceC> system-view
[DeviceC] vlan 1 to 30
[DeviceC] stp region-configuration
[DeviceC-mst-region] instance 1 vlan 1 to 30
[DeviceC-mst-region] active region-configuration
[DeviceC-mst-region] quit
# Disable STP on GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 separately, and configure them as
trunk ports that permit VLANs 1 through 30.
[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 30
[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 30