123
Figure 31
Network diagram
Configuration procedure
1.
Configure VLANs and VLAN member ports: (Details not shown.)
{
Create VLAN 10, VLAN 20, and VLAN 30 on both Device A and Device B.
{
Create VLAN 10, VLAN 20, and VLAN 40 on Device C.
{
Create VLAN 20, VLAN 30, and VLAN 40 on Device D.
{
Configure the ports on these devices as trunk ports and assign them to related VLANs.
2.
Configure Device A:
# Enter MST region view, and configure the MST region name as
example
.
<DeviceA> system-view
[DeviceA] stp region-configuration
[DeviceA-mst-region] region-name example
# Map VLAN 10, VLAN 30, and VLAN 40 to MSTI 1, MSTI 3, and MSTI 4, respectively.
[DeviceA-mst-region] instance 1 vlan 10
[DeviceA-mst-region] instance 3 vlan 30
[DeviceA-mst-region] instance 4 vlan 40
# Configure the revision level of the MST region as 0.
[DeviceA-mst-region] revision-level 0
# Activate MST region configuration.
[DeviceA-mst-region] active region-configuration
[DeviceA-mst-region] quit
# Configure the current device as the root bridge of MSTI 1.
[DeviceA] stp instance 1 root primary
# Enable the spanning tree feature globally.
[DeviceA] stp global enable
3.
Configure Device B:
# Enter MST region view, configure the MST region name as
example
.
Per
mit:
VL
AN
20
, 30
XG
E1/0
/2
XG
E1/0
/2
