Pvst Configuration Example - HP FlexFabric 12900 Series Configuration Manual

3
# Display brief spanning tree information on Device C.
[DeviceC] display stp brief
MST ID
0
0
0
1
1
4
# Display brief spanning tree information on Device D.
[DeviceD] display stp brief
MST ID
0
0
0
3
3
4
Based on the output, you can draw each MSTI mapped to each VLAN, as shown in
Figure 28 MSTIs mapped to different VLANs
C
MSTI 1 mapped to VLAN 10
MSTI 3 mapped to VLAN 30

PVST configuration example

Network requirements
As shown in
D work at the access layer.
Ten-GigabitEthernet1/0/3
Port
Ten-GigabitEthernet1/0/1
Ten-GigabitEthernet1/0/2
Ten-GigabitEthernet1/0/3
Ten-GigabitEthernet1/0/1
Ten-GigabitEthernet1/0/2
Ten-GigabitEthernet1/0/3
Port
Ten-GigabitEthernet1/0/1
Ten-GigabitEthernet1/0/2
Ten-GigabitEthernet1/0/3
Ten-GigabitEthernet1/0/1
Ten-GigabitEthernet1/0/2
Ten-GigabitEthernet1/0/3
A B
A B
Root bridge Normal link
Figure 29, Device A and Device B work at the distribution layer, and Device C and Device
A
C
MSTI 0 mapped to VLAN 20
D C
MSTI 4 mapped to VLAN 40
112
DESI FORWARDING
Role STP State
DESI FORWARDING
ROOT FORWARDING
DESI FORWARDING
ROOT FORWARDING
ALTE DISCARDING
DESI FORWARDING
Role STP State
ROOT FORWARDING
ALTE DISCARDING
ALTE DISCARDING
ROOT FORWARDING
ALTE DISCARDING
ROOT FORWARDING
Figure
B
D
D
Blocked link
NONE
Protection
NONE
NONE
NONE
NONE
NONE
NONE
Protection
NONE
NONE
NONE
NONE
NONE
NONE
28.