H3C Technologies H3C S10500 Series Switches - Manual (Page 115)

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[DeviceC] stp vlan 40 root primary
# Enable the spanning tree feature globally and for VLANs 10, 20, and 40.
[DeviceC] stp enable
[DeviceC] stp vlan 10 20 40 enable
5. Configuration on Device D.
# Set the spanning tree mode to PVST.
<DeviceD> system-view
[DeviceD] stp mode pvst
# Enable the spanning tree feature globally and for VLANs 20, 30, and 40.
[DeviceD] stp enable
[DeviceD] stp vlan 20 30 40 enable
6. Verification
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
VLAN Port Role STP State Protection
10 GigabitEthernet1/0/1 DESI DISCARDING NONE
10 GigabitEthernet1/0/3 DESI FORWARDING NONE
20 GigabitEthernet1/0/1 DESI FORWARDING NONE
20 GigabitEthernet1/0/2 DESI FORWARDING NONE
20 GigabitEthernet1/0/3 DESI FORWARDING NONE
30 GigabitEthernet1/0/2 DESI FORWARDING NONE
30 GigabitEthernet1/0/3 ROOT FORWARDING NONE
# Display brief spanning tree information on Device B.
[DeviceB] display stp brief
VLAN Port Role STP State Protection
10 GigabitEthernet1/0/2 DESI FORWARDING NONE
10 GigabitEthernet1/0/3 ROOT FORWARDING NONE
20 GigabitEthernet1/0/1 DESI FORWARDING NONE
20 GigabitEthernet1/0/2 DESI FORWARDING NONE
20 GigabitEthernet1/0/3 ROOT FORWARDING NONE
30 GigabitEthernet1/0/1 DESI FORWARDING NONE
30 GigabitEthernet1/0/3 DESI FORWARDING NONE
# Display brief spanning tree information on Device C.
[DeviceC] display stp brief
VLAN Port Role STP State Protection
10 GigabitEthernet1/0/1 ROOT FORWARDING NONE
10 GigabitEthernet1/0/2 ALTE FORWARDING NONE
20 GigabitEthernet1/0/1 ROOT FORWARDING NONE
20 GigabitEthernet1/0/2 ALTE FORWARDING NONE
20 GigabitEthernet1/0/3 DESI DISCARDING NONE
40 GigabitEthernet1/0/3 DESI FORWARDING NONE
# Display brief spanning tree information on Device D.
[DeviceD] display stp brief