R3303-HP HSR6800 Routers Layer 2 - LAN Switching Configuration Guide

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Figure 65 Application scenario of one-to-one and many-to-one VLAN mapping
To further sub-classify each type of traffic by customer, perform one-to-one VLAN mapping on the
building devices, assigning a separate VLAN for each type of traffic from each customer. The required
total number of VLANs in the network can be very large. To prevent the maximum number of VLANs from
being exceeded on the distribution layer device, perform many-to-one VLAN mapping on the campus
device to assign the same type of traffic from different customers to the same VLAN.
Application scenario of one-to-two and two-to-two VLAN
mapping
Figure 66 shows a typical application scenario in which two remote sites of VPN A, Site 1 and Site 2,
must communicate across two SP networks, SP 1 and SP 2.
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