HP 3100 Series Configuration Manual page 101

[DeviceC-mst-region] active region-configuration
[DeviceC-mst-region] quit
# Specify the current device as the root bridge of MSTI 4.
[DeviceC] stp instance 4 root primary
# Enable the spanning tree feature globally.
[DeviceC] stp enable
Configure Device D:
5.
# Enter MST region view, configure the MST region name as example, map VLAN 10, VLAN 30,
and VLAN 40 to MSTI 1, MSTI 3, and MSTI 4, respectively, and configure the revision level of
the MST region as 0.
<DeviceD> system-view
[DeviceD] stp region-configuration
[DeviceD-mst-region] region-name example
[DeviceD-mst-region] instance 1 vlan 10
[DeviceD-mst-region] instance 3 vlan 30
[DeviceD-mst-region] instance 4 vlan 40
[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 enable
Verify the configurations:
6.
In this example, suppose that Device B has the lowest root bridge ID. As a result, Device B is
elected as the root bridge in MSTI 0.
You can use the display stp brief command to display brief spanning tree information on each
device after the network is stable.
# Display brief spanning tree information on Device A.
[DeviceA] display stp brief
MSTID Port
0 Ethernet1/0/1
0 Ethernet1/0/2
0 Ethernet1/0/3
1 Ethernet1/0/1
1 Ethernet1/0/3
3 Ethernet1/0/2
3 Ethernet1/0/3
# Display brief spanning tree information on Device B.
[DeviceB] display stp brief
MSTID Port
0 Ethernet1/0/1
0 Ethernet1/0/2
0 Ethernet1/0/3
1 Ethernet1/0/2
1 Ethernet1/0/3
3 Ethernet1/0/1
3 Ethernet1/0/3
# Display brief spanning tree information on Device C.
Role STP State
ALTE DISCARDING
DESI FORWARDING
ROOT FORWARDING
DESI FORWARDING
DESI FORWARDING
DESI FORWARDING
ROOT FORWARDING
Role STP State
DESI FORWARDING
DESI FORWARDING
DESI FORWARDING
DESI FORWARDING
ROOT FORWARDING
DESI FORWARDING
DESI FORWARDING
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Protection
NONE
NONE
NONE
NONE
NONE
NONE
NONE
Protection
NONE
NONE
NONE
NONE
NONE
NONE
NONE