On U2000 select the NE Exporer and then choose from the Function Tree -> Ethernet Interface
On the Basic Attibutes you need to select the Port - Encapsulation - Working mode suited for your service
Note that for L2 Attributes, we have tag identifier which indicate the type of packet:
Tag Aware : the port transparently transmits the packets with a VLAN ID(tagged packets) and discards the packets without a VLAN ID. Defaault VLAN ID and VLAN Priority are unavailable.
Access: the port attacheds the default VLAN ID to thr packets witout a VLAN ID an discad the packets with a VLAN ID
Hybrid: permit Access and Tag aware to transmit packets.
This field is unavailabe if Encapsulation Type in General Attributes is set to QinQ. In our case we used QinQ Type Domain as 8100
QinQ is a Layer 2 tunnel protocol based on IEEE 802.1q encapsulation. The QinQ technology encapsulates a private virtual local area network (VLAN) tag into a carrier VLAN tag. Therefore, the packets with two layers of VLAN tags can be transmitted on the backbone network of a carrier. In this manner, QinQ provides Layer 2 virtual private network (VPN) tunnels
The interconnect end interface settings is established at physical port attributes
