ZyXEL Communications MES-2110 - Manual (Page 48)

Chapter 4 Tutorials
MES-2110 User’s Guide
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4.7 Frame Tagging
In this tutorial, shows you how to configure ports 1 and 2 on the switch to tag
incoming frames with the service provider’s VID of 37 (ports are connected to
customer A network) and how to set the priority for ports 1 and 2 to 3.
The scenario is that both A and B are Service Provider’s Network (SPN) customers
with VPN tunnels between their head offices and branch offices respectively. Both
have an identical VLAN tag for their VLAN group. The service provider can
separate these two VLANs within its network by adding tag 37 to distinguish
customer A and tag 48 to distinguish customer B at edge device x and then
stripping those tags at edge device y as the data frames leave the network.
Figure 15 Frame Tagging Example