Operation Manual – MSTP
H3C S3100-52P Ethernet Switch
Chapter 1 MSTP Configuration
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Note:
z
The rapid transition feature can be enabled on only root ports or alternate ports.
z
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
, the upper part is the service provider network, and the lower
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.
Network
Network A
Network B
Customer networks
Service provider network
Packet input/output
device
Packet input/output
device
Figure 1-9
VLAN-VPN tunnel network hierarchy
1.9.2 Configuring VLAN-VPN tunnel
Follow these steps to configure VLAN-VPN tunnel:
