Huawei Quidway S8500 Series Command Manual page 866

Command Manual – STP
Quidway S8500 Series Routing Switches
Parameter
None
Description
Use the vlan-vpn tunnel command to enable bridge protocol data unit (BPDU) Tunnel
on the switch.
Use the undo vlan-vpn tunnel command to disable BPDU Tunnel on the switch.
BPDU Tunnel enables geographically segmented user network to transmit BPDU
packets transparently over the specified VLAN VPN on the operator's network. This
allows the user network to participate in a uniform spanning tree calculation while
maintaining a separate spanning tree from the operator network.
By default, BPDU Tunnel is disabled.
Caution:
To enable BPDU Tunnel on a switch, you must first enable STP on it. Otherwise, the
client network BPDU will not be processed by the CPU when entering the switch,
nor MAC address replacement or transparent transmission will be implemented.
To enable BPDU Tunnel on a port, you must configure the port as access and the
intermediate carrier network as trunk.
You cannot enable BPDU Tunnel on a port on which DOT1X, GVRP, STP or NTDP
is enabled.
Example
# Enable BPDU Tunnel on the switch.
<Quidway>system-view
System View: return to User View with Ctrl+Z.
[Quidway] vlan-vpn tunnel
Chapter 3 BPDU Tunnel Configuration Commands
Huawei Technologies Proprietary
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