HP FlexFabric 12900 Series Configuration Manual page 123

20 Ten-GigabitEthernet1/0/1
20 Ten-GigabitEthernet1/0/2
20 Ten-GigabitEthernet1/0/3
40 Ten-GigabitEthernet1/0/3
# Display brief spanning tree information on Device D.
[DeviceD] display stp brief
VLAN ID Port
20 Ten-GigabitEthernet1/0/1
20 Ten-GigabitEthernet1/0/2
20 Ten-GigabitEthernet1/0/3
30 Ten-GigabitEthernet1/0/1
30 Ten-GigabitEthernet1/0/2
40 Ten-GigabitEthernet1/0/3
Based on the output, you can draw a topology for each VLAN spanning tree, as shown in
Figure 30 VLAN spanning tree topologies
ROOT
ALTE
DESI
DESI
Role
ALTE
ROOT
ALTE
ROOT
ALTE
ROOT
115
FORWARDING NONE
DISCARDING NONE
FORWARDING NONE
FORWARDING NONE
STP State Protection
DISCARDING NONE
FORWARDING NONE
DISCARDING NONE
FORWARDING NONE
DISCARDING NONE
FORWARDING NONE
Figure 30.