H3C Technologies H3C S10500 Series Switches User Manual
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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 30 Spanning trees mapped to different VLANs
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