HP FlexFabric 12900 Series Configuration Manual page 119

# Specify the device as the root bridge of MSTI 4.
[DeviceC] stp instance 4 root primary
# Enable the spanning tree feature globally.
[DeviceC] stp global enable
5. Configure Device D:
# Enter MST region view, and configure the MST region name as example.
<DeviceD> system-view
[DeviceD] stp region-configuration
[DeviceD-mst-region] region-name example
# Map VLAN 10, VLAN 30, and VLAN 40 to MSTI 1, MSTI 3, and MSTI 4, respectively.
[DeviceD-mst-region] instance 1 vlan 10
[DeviceD-mst-region] instance 3 vlan 30
[DeviceD-mst-region] instance 4 vlan 40
# Configure the revision level of the MST region as 0.
[DeviceD-mst-region] revision-level 0
# Activate MST region configuration.
[DeviceD-mst-region] active region-configuration
[DeviceD-mst-region] quit
# Enable the spanning tree feature globally.
[DeviceD] stp global enable
Verifying the configuration
In this example, Device B has the lowest root bridge ID. As a result, Device B is elected as the root bridge
in MSTI 0.
When the network is stable, use the display stp brief command to display brief spanning tree information
on each device.
# Display brief spanning tree information on Device A.
[DeviceA] display stp brief
[DeviceA] display stp brief
MST ID
0
0
0
1
1
3
3
# Display brief spanning tree information on Device B.
[DeviceB] display stp brief
MST ID
0
0
0
1
1
3
Port
Ten-GigabitEthernet1/0/1
Ten-GigabitEthernet1/0/2
Ten-GigabitEthernet1/0/3
Ten-GigabitEthernet1/0/1
Ten-GigabitEthernet1/0/3
Ten-GigabitEthernet1/0/2
Ten-GigabitEthernet1/0/3
Port
Ten-GigabitEthernet1/0/1
Ten-GigabitEthernet1/0/2
Ten-GigabitEthernet1/0/3
Ten-GigabitEthernet1/0/2
Ten-GigabitEthernet1/0/3
Ten-GigabitEthernet1/0/1
Role
ALTE
DESI
ROOT
DESI
DESI
DESI
ROOT
Role
DESI
DESI
DESI
DESI
ROOT
DESI
111
STP State Protection
DISCARDING NONE
FORWARDING NONE
FORWARDING NONE
FORWARDING NONE
FORWARDING NONE
FORWARDING NONE
FORWARDING NONE
STP State Protection
FORWARDING NONE
FORWARDING NONE
FORWARDING NONE
FORWARDING NONE
FORWARDING NONE
FORWARDING NONE