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[SwitchD] interface gigabitethernet 1/0/1
[SwitchD-GigabitEthernet1/0/1] port link-type trunk
[SwitchD-GigabitEthernet1/0/1] port trunk permit vlan 501 502 503
Two-to-two VLAN mapping configuration example
Network requirements
As shown in Figure 65, two VPN A users, Site 1 and Site 2, are in VLAN 10 and VLAN 30, respectively.
SP 1 assigns VLAN 100 for VPN A, and SP 2 assigns VLAN 200 for VPN A.
Configure QinQ and two-to-two VLAN mappings to enable the two sites to communicate across networks
SP 1 and SP 2.
Figure 65 Network diagram for the two-to-two VLAN mapping application
Configuration procedure
1. Configuring PE 1
# Configure QinQ function on GigabitEthernet 1/0/1 to add outer VLAN tag 100 to the traffic tagged
with VLAN 10.
<PE1> system-view
[PE1] interface gigabitethernet 1/0/1
[PE1-GigabitEthernet1/0/1] port access vlan 100
[PE1-GigabitEthernet1/0/1] qinq enable
[PE1-GigabitEthernet1/0/1] quit
# Configure the uplink port GigabitEthernet 1/0/2 to permit frames of VLAN 100 to pass through.
[PE1] interface gigabitethernet 1/0/2
[PE1-GigabitEthernet1/0/2] port link-type trunk
[PE1-GigabitEthernet1/0/2] port trunk permit vlan 100
2. Configuring PE 2
# Set port GigabitEthernet 1/0/1 as a trunk port, and assign it to VLAN 100.
<PE2> system-view
[PE2] interface gigabitethernet 1/0/1
[PE2-GigabitEthernet1/0/1] port link-type trunk
[PE2-GigabitEthernet1/0/1] port trunk permit vlan 100
[PE2-GigabitEthernet1/0/1] quit
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