Operation Manual – VLAN VPN
Quidway S3900 Series Ethernet Switches-Release 1510 Chapter 2 BPDU Tunnel Configuration
Huawei Technologies Proprietary
2-3
2.2.1 Configuration Prerequisites
One or more protocols among LACP, NDP, CDP, and VTP operate properly on the
devices.
2.2.2 Configuring BPDU Tunnel
Table 2-1 Configure BPDU Tunnel
Operation Command Description
Enter system view
system-view
—
Enable the function in
system view
bpdu-tunnel uplink
interface-list
Enter
Ethernet
port view
interface interface-type
interface-number
Enable
the
BPDU
Tunnel
function
for a
port
Enable
the
function
in
Ethernet
port view
Enable the
BPDU
Tunnel
function
bpdu-tunnel uplink
You can enable
the BPDU
Tunnel in
system view or
in Ethernet
view.
By default, NDP
is enabled
globally.
Enable the BPDU Tunnel function
for the packets of a specific protocol
bpdu-tunnel { lacp | ndp |
cdp | vtp }
Required
Note:
The BPDU Tunnel is unavailable to all the ports of a device if the device has the fabric
function enabled on one of its ports.
2.3 BPDU Tunnel Configuration Example
I. Network requirements
z Customer1 and Customer2 are access devices operating in a user network.
z Provider1 and Provider2 are access devices operating in the operator’s network.
z Customer1 and Provider1, Customer2 and Provider2 are interconnected through
their trunk ports, as shown in
Figure 2-4.
z NDP is enabled on the Ethernet1/0/1 port shown in the Figure 2-4. The BPDU
Tunnel function is enabled for NDP packets on the Ethernet1/0/2 and
Ethernet1/0/3 port shown in the
Figure 2-4.