Configuring BPDU Transparent Transmission 143
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■ BPDU tunneling must be enabled globally before the BPDU tunnel 
configuration for a port can take effect.
■ The BPDU tunneling feature is incompatible with the GVRP feature, so these 
two features cannot be enabled at the same time. For introduction to GVRP, 
refer to “Introduction to GVRP” on page 109.
■ The BPDU tunneling feature is incompatible with the NTDP feature, so these 
two features cannot be enabled at the same time. If you want to enable BPDU 
tunneling on a port, use the undo ntdp enable command to disable NTDP 
first. For introduction to NTDP, refer to “Cluster Management Overview” on 
page 905.
Configuring BPDU 
Transparent 
Transmission
Perform the following tasks to configure BPDU transparent transmission:
Enable BPDU tunneling globally bpdu-tunnel dot1q enable Optional
Enabled by default 
Enter 
Ethernet 
port view or 
port group 
view 
Enter Ethernet 
port view 
interface interface-type 
interface-number 
Required
Use either command.
Configurations made in 
Ethernet port view will take 
effect on the current port 
only; configurations made in 
port group view will take 
effect on all ports in the port 
group. 
Enter port group 
view 
port-group { manual 
port-group-name | 
aggregation agg-id }
Enable BPDU tunneling for the 
port(s)
bpdu-tunnel dot1q enable Required
Disabled by default
To do… Use the command…  Remarks 
To do… Use the command…  Remarks 
Enter system view system-view - 
Enable BPDU tunneling globally bpdu-tunnel dot1q enable Optional
Enabled by default 
Enter 
Ethernet 
port view or 
port group 
view 
Enter Ethernet 
port view 
interface interface-type 
interface-number 
Required
Use either command.
Configurations made in 
Ethernet port view will take 
effect on the current port 
only; configurations made in 
port group view will take 
effect on all ports in the port 
group. 
Enter port group 
view 
port-group { manual 
port-group-name | 
aggregation agg-id }
Enable BPDU tunneling on the 
port(s)
bpdu-tunnel dot1q enable Required
Disabled by default 
Disable STP on the port(s) stp disable Required
Enabled by default 
Enable BPDU tunneling for STP 
on the port(s)
bpdu-tunnel dot1q stp Required
Disabled by default