Dasan V5808 - Tunnel Port; Trunk Port; Network-Network Interface (NNI) Port; User Network Interface (UNI) Port

UMN:CLI User Manual
V5808
268
Preamble Destination Source 802.1Q VLAN Tag Type/Length LLC Data FCS
TPID 8100 Priority Canonical 12-bit identifier
VLAN Ethernet Frame
Preamble Destination Source 802.1Q VLAN Tag Type/Length LLC Data FCSVLAN Tag
TPID 8100/9100 Priority Canonical 12-bit identifier TPID 8100 Priority Canonical 12-bit identifier
Ethernet Frame using 802.1Q Tunneling
Fig. 8.4 QinQ Frame
Port which connected with Service Provider is Uplink port (internal), and which connected
with customer is Access port (external).
Tunnel Port
By tunnel port we mean a LAN port that is configured to offer 802.1Q-tunneling support. A
tunnel port is always connected to the end customer, and the input traffic to a tunnel port
is always 802.1Q tagged traffic.
The different customer VLANs existing in the traffic to a tunnel port shall be preserved
when the traffic is carried across the network
Trunk Port
By trunk port we mean a LAN port that is configured to operate as an inter-switch link/port,
able of carrying double-tagged traffic. A trunk port is always connected to another trunk
port on a different switch. Switching shall be performed between trunk ports and tunnels
ports and between different trunk ports.
Network-Network Interface (NNI) Port
NNI port has multiple SVLANs associated. Only frames tagged with those SVLAN are
forwarded on that port.
User Network Interface (UNI) Port
UNI port has an associated QinQ table that maps CVLANs with SVLANs.Configuring
UNI/NNI Port
To configure the UNI/NNI port, use the following command.
Command
Mode
Description
vlan dot1q-tunnel enable PORTS
Bridge
Enables QinQ port and configures an UNI port.
PORTS: qinq port to be enabled
vlan dot1q-tunnel disable
PORTS
Disables QinQ port.(default)
PORTS: qinq port to be disabled