H3C Technologies H3C S5560 Series Switches User Manual
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# Configure VLAN 100 as the PVID of GigabitEthernet 1/0/1.
[PE1-GigabitEthernet1/0/1] port trunk pvid vlan 100
# Enable QinQ on GigabitEthernet 1/0/1.
[PE2-GigabitEthernet1/0/1] qinq enable
# Configure GigabitEthernet 1/0/1 to transparently transmit frames from VLAN 3000.
[PE2-GigabitEthernet1/0/1] qinq transparent-vlan 3000
[PE2-GigabitEthernet1/0/1] quit
# Configure GigabitEthernet 1/0/2 as a trunk port, and assign it to VLANs 100 and 3000.
[PE2] interface gigabitethernet 1/0/2
[PE2-GigabitEthernet1/0/2] port link-type trunk
[PE2-GigabitEthernet1/0/2] port trunk permit vlan 100 3000
3.
Configure the devices between PE 1 and PE 2:
# Set the MTU to a minimum of 1504 bytes for each port on the path of QinQ frames. (Details not
shown.)
# Configure all the ports on the forwarding path to allow frames from VLANs 100 and 3000 to
pass through without removing the VLAN tag. (Details not shown.)