TP-Link TD-W8970N User Manual page 26

Note:
Enabling packet level QoS for PVC improves performance for selected classes of applications.
While QoS consumes system resources; therefore the number of PVC(s) will be reduced. Besides
this, it cannot be set for the connection type of CBR and Real-time VBR. If you select the QoS
service, the Quality of Service menu will be added to the Web-based Utility, the detailed
configuration will be described in 4.4.8 Quality of Service.
4.4.1.2 ETH interface
Choose "Advanced Setup" "Layer2 Interface ETH Interface", you can configure ETH WAN
interfaces on the screen below.
Note:
To make sure the ETH port available, you should first choose "Advanced Setup" "LAN Ports" to
enable the Virtual LAN Ports feature.
Add: Click the Add button, and you can add a new interface in the next screen.
ETH port: Select an ETH port to configure as the WAN port.
Select Connection Mode: Choose a connection mode for the port.
Click Apply/Save to save your settings and then you will see the screen similar to Figure 4-6.
TD-W8970N Wireless N ADSL2+ Modem Router User Guide
Figure 4-4
Figure 4-5
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