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3com S7906E Manuel De Montage

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VLAN Mapping Configuration 
When configuring VLAN mapping, go to these sections for information you are interested in: 
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VLAN Mapping Overview 
VLAN mapping maps the customer VLANs (CVLANs) to service-provider VLANs (SVLANs). Types of 
VLAN mapping include: 
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One-to-one VLAN mapping that maps the CVLAN ID in the VLAN tag to the SVLAN ID.  
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Many-to-one VLAN mapping that maps the CVLAN IDs in the VLAN tags of traffic of more than two 
VLANs to the same SVLAN ID.  
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One-to-two VLAN mapping that maps traffic with the inner VLAN ID to the inner VLAN ID and the 
SVLAN ID.  
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Two-to-two VLAN mapping that maps traffic with outer and inner VLAN IDs to the service-provider 
outer and the inner VLAN IDs.  
 
 
Only SC, SD, and EB boards support these four types of VLAN mappings. The SA and EA boards 
support only one-to-one VLAN mapping. For detailed information on board types, refer to the 3Com 
S7900E Family Getting Started Guide.  
 
The following sections present the scenario to which these VLAN mapping types apply.  
One-to-One VLAN Mapping and Many-to-One VLAN Mapping 
One-to-one VLAN mapping and many-to-one VLAN mapping are mainly applied in networking 
environments as shown in 
. In such a network, different VLANs are used to transmit data for 
different services (PC, VoD, and VoIP for example) of a home user.