HP 3100 Series Configuration Manual page 104

[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
Configure Device D:
5.
# 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
Verify the configurations:
6.
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
10 Ethernet1/0/1
10 Ethernet1/0/3
20 Ethernet1/0/1
20 Ethernet1/0/2
20 Ethernet1/0/3
30 Ethernet1/0/2
30 Ethernet1/0/3
# Display brief spanning tree information on Device B.
[DeviceB] display stp brief
VLAN Port
10 Ethernet1/0/2
10 Ethernet1/0/3
20 Ethernet1/0/1
20 Ethernet1/0/2
20 Ethernet1/0/3
30 Ethernet1/0/1
30 Ethernet1/0/3
# Display brief spanning tree information on Device C.
[DeviceC] display stp brief
VLAN Port
10 Ethernet1/0/1
10 Ethernet1/0/2
20 Ethernet1/0/1
20 Ethernet1/0/2
20 Ethernet1/0/3
40 Ethernet1/0/3
# Display brief spanning tree information on Device D.
[DeviceD] display stp brief
VLAN Port
20 Ethernet1/0/1
20 Ethernet1/0/2
Role STP State
DESI DISCARDING
DESI FORWARDING
DESI FORWARDING
DESI FORWARDING
DESI FORWARDING
DESI FORWARDING
ROOT FORWARDING
Role STP State
DESI FORWARDING
ROOT FORWARDING
DESI FORWARDING
DESI FORWARDING
ROOT FORWARDING
DESI FORWARDING
DESI FORWARDING
Role STP State
ROOT FORWARDING
ALTE FORWARDING
ROOT FORWARDING
ALTE FORWARDING
DESI DISCARDING
DESI FORWARDING
Role STP State
ALTE FORWARDING
ROOT DISCARDING
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Protection
NONE
NONE
NONE
NONE
NONE
NONE
NONE
Protection
NONE
NONE
NONE
NONE
NONE
NONE
NONE
Protection
NONE
NONE
NONE
NONE
NONE
NONE
Protection
NONE
NONE