HP 5120 EI Series User Manual

104
# 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
VLAN Port Role STP State Protection
20 GigabitEthernet1/0/1 ALTE FORWARDING NONE
20 GigabitEthernet1/0/2 ROOT DISCARDING NONE
20 GigabitEthernet1/0/3 ALTE DISCARDING NONE
30 GigabitEthernet1/0/1 ROOT FORWARDING NONE
30 GigabitEthernet1/0/2 ALTE DISCARDING NONE
40 GigabitEthernet1/0/3 ROOT FORWARDING NONE
Based on the output, you can draw the spanning tree mapped to each VLAN, as shown in Figure
31.

HP 5120 EI Series Specifications

General

Brand	HP
Model	5120 EI Series
Category	Switch
Language	English