3Com 4510G Configuration Manual page 178

Make sure that the devices in the service provider network have been configured to allow QinQ
packets to pass through.
1) Configuration on Provider A
Configure GigabitEthernet 1/0/1
# Configure VLAN 10 as the default VLAN of GigabitEthernet 1/0/1.
<ProviderA> system-view
[ProviderA] interface gigabitethernet 1/0/1
[ProviderA-GigabitEthernet1/0/1] port access vlan 10
# Enable basic QinQ on GigabitEthernet 1/0/1.
[ProviderA-GigabitEthernet1/0/1] qinq enable
[ProviderA-GigabitEthernet1/0/1] quit
Configure GigabitEthernet 1/0/2
# Configure GigabitEthernet 1/0/2 as a hybrid port and configure VLAN 50 as the default VLAN of the
port.
[ProviderA] interface gigabitethernet 1/0/2
[ProviderA-GigabitEthernet1/0/2] port link-type hybrid
[ProviderA-GigabitEthernet1/0/2] port hybrid pvid vlan 50
[ProviderA-GigabitEthernet1/0/2] port hybrid vlan 50 untagged
# Enable basic QinQ on GigabitEthernet 1/0/2.
[ProviderA-GigabitEthernet1/0/2] qinq enable
[ProviderA-GigabitEthernet1/0/2] quit
Configure GigabitEthernet 1/0/3
# Configure GigabitEthernet 1/0/3 as a trunk port to permit frames of VLAN 10 and 50 to pass through.
[ProviderA] interface gigabitethernet 1/0/3
[ProviderA-GigabitEthernet1/0/3] port link-type trunk
[ProviderA-GigabitEthernet1/0/3] port trunk permit vlan 10 50
# Set the TPID value in the outer tag to 0x8200.
[ProviderA-GigabitEthernet1/0/3] quit
[ProviderA] qinq ethernet-type 8200
2) Configuration on Provider B
Configure GigabitEthernet 1/0/1
# Configure VLAN 50 as the default VLAN of GigabitEthernet 1/0/1.
<ProviderB> system-view
[ProviderB] interface gigabitethernet 1/0/1
[ProviderB-GigabitEthernet1/0/1] port access vlan 50
# Enable basic QinQ on GigabitEthernet 1/0/1.
[ProviderB-GigabitEthernet1/0/1] qinq enable
[ProviderB-GigabitEthernet1/0/1] quit
Configure GigabitEthernet 1/0/2
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