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To configure two-to-two VLAN mapping:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view.
• Enter Layer 2 Ethernet interface
view:
interface interface-type
interface-number
• Enter Layer 2 aggregate
interface view:
interface bridge-aggregation
interface-number
N/A
3. Set the link type of the port.
• Configure the port as a trunk
port:
port link-type trunk
• Configure the port as a hybrid
port:
port link-type hybrid
By default, the link type of a
port is
access
.
4. Assign the port to the original
VLANs and the translated
VLANs.
• port trunk permit vlan
vlan-id-list
• port hybrid vlan vlan-id-list
tagged
N/A
5. Configure a two-to-two VLAN
mapping.
vlan mapping tunnel
outer-vlan-id
inner-vlan-id
translated-vlan
outer-vlan-id inner-vlan-id
By default, no VLAN mapping
is configured on an interface.
Displaying and maintaining VLAN mapping
Execute display commands in any view.
Task Command
Display VLAN mapping
information.
display vlan mapping
[
interface
interface-type interface-number ]
VLAN mapping configuration examples
One-to-one and many-to-one VLAN mapping configuration
example
Network requirements
As shown in Figure 52:
• Each household subscribes to PC, VoD, and VoIP services, and obtains the IP address through
DHCP.
• On the home gateways, VLANs 1, 2, and 3 are assigned to PC, VoD, and VoIP traffic,
respectively.
To isolate traffic of the same service type from different households, configure one-to-one VLAN
mappings on the wiring-closet switches. This feature assigns one VLAN to each type of traffic from
each household.
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