H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 113)

13-6
[ProviderC] interface GigabitEthernet 0/0/4
[ProviderC-GigabitEthernet0/0/4] port access vlan 2
[ProviderC-GigabitEthernet0/0/4] stp disable
[ProviderC-GigabitEthernet0/0/4] undo ntdp enable
[ProviderC-GigabitEthernet0/0/4] bpdu-tunnel dot1q enable
[ProviderC-GigabitEthernet0/0/4] bpdu-tunnel dot1q stp
When STP works stably on the customer network, if Customer A acts as the root bridge, the ports of
Customer C and Customer D connected with Provider C can receive BPDUs from Customer A. Since
BPDU isolation is enabled on Customer B, the port that connects Customer B to Provider B cannot
receive BPDUs from Customer A.