TP-Link TL-R470T User Manual page 68

On this page, you can configure the Link Backup function based on actual need to reduce the traffic
burden of WAN port and improve the network efficiency.
Choose the menu Advanced→Load Balance→Link Backup to load the following page.
The following items are displayed on this screen:
General
WAN Ports:
WAN Config:
Mode:
Figure 4-33 Link Backup
Displays all the WAN ports in use. You can drag the light-blue WAN button to
primary and backup WAN list. The color of WAN button changing to gray
indicates that the WAN port is already in the primary and backup WAN list.
The WAN port in the secondary WAN list will share the traffic for the WAN in
the primary WAN list under the specified condition. The primary WAN list can
contain one or more WAN ports, while the backup WAN list contains only one
WAN port.
You can select Timing or Failover.
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