Huawei Quidway S3900 Series - Chapter 2 BPDU Tunnel Configuration Commands; BPDU Tunnel Configuration Commands; Vlan-Vpn Tunnel

Command Manual – MSTP
Quidway S3900 Series Ethernet Switches-Release 1510 Chapter 2 BPDU Tunnel Configuration Commands
Huawei Technologies Proprietary
2-1
Chapter 2 BPDU Tunnel Configuration Commands
2.1 BPDU Tunnel Configuration Commands
2.1.1 vlan-vpn tunnel
Syntax
vlan-vpn tunnel
undo vlan-vpn tunnel
View
System view
Parameter
None
Description
Use the vlan-vpn tunnel command to enable the BPDU Tunnel function for a switch.
Use the undo vlan-vpn tunnel command to disable the BPDU Tunnel function.
The BPDU Tunnel function enables BPDUs to be transparently transmitted between
geographically dispersed user networks through specified VLAN VPNs in operator’s
networks, through which spanning trees can be generated across these user networks
and are independent of those of the operator’s network.
By default, the BPDU Tunnel function is disabled.
 Note:
z The BPDU Tunnel function can only be enabled on devices with STP employed.
z The BPDU Tunnel function can only be enabled on access ports.
z To enable the BPDU Tunnel function, make sure the links between operator’s
networks are trunk links.
z If a fabric port exists on a switch, you cannot enable the VLAN-VPN function for any
port of the switch.
z As the VLAN-VPN function is unavailable on ports with 802.1x, GVRP, GMRP, STP,
or NTDP employed, the BPDU Tunnel function is not applicable to these ports.