Configuring VLANs
A VLAN created on a QinQ mixed VLAN mode device can be either a regular VLAN (C-VLAN) or a tunnel VLAN (S-VLAN). C-VLANs have no mapping/relation to the S-VLANs on the device.
VLANs created on a QinQ S-VLAN mode device can be S-VLANs only. S-VLANs provide QinQ tunneling of customer frames and behave like a port-based/s-tagged interface.