Configuring Vlan-Vpn Tunnel; Introduction - H3C S3100-52P Operation Manual

Operation Manual – MSTP
H3C S3100-52P Ethernet Switch
Note:
The rapid transition feature can be enabled on only root ports or alternate ports.
If you configure the rapid transition feature on a designated port, the feature does
not take effect on the port.

1.9 Configuring VLAN-VPN Tunnel

1.9.1 Introduction

The VLAN-VPN Tunnel function enables STP packets to be transparently transmitted
between geographically dispersed customer networks through specified VLAN VPNs in
service provider networks, through which spanning trees can be generated across
these customer networks and are independent of those of the service provider network.
As shown in
part comprises the customer networks. The service provider network comprises packet
input/output devices, and the customer network has networks A and B. On the service
provider network, configure the arriving STP packets at the input device to have MAC
addresses in a special format, and reconvert them back to their original formats at the
output device. This is how transparent transmission is implemented over the service
provider network.
Packet input/output
device
Network A
Figure 1-9 VLAN-VPN tunnel network hierarchy
1.9.2 Configuring VLAN-VPN tunnel
Follow these steps to configure VLAN-VPN tunnel:
Figure 1-9, the upper part is the service provider network, and the lower
Service provider network
Network
Customer networks
Packet input/output
device
Network B
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Chapter 1 MSTP Configuration