RAKwireless RAK7249 Configuration Manual page 10

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WAN interface represents the Ethernet uplink interface and WWAN represents the LTE
cellular network uplink interface.
For example if Ping Watchdog is enabled for both uplink interfaces at the same time and the
response to degradation of the link quality is set as Increase Gateway Metric the two uplink
interfaces work as backups for each other. In the event of significant degradation on one,
the Gateway switches to the other.
The Gateway Metric determines the priority of interfaces. The default value can be adjusted
in the Network menu for the corresponding interface. The lower the Gateway metric, the
higher the priority of the link.
Figure 8 | Ping Watchdog Interface Configuration
RAK LoRaWAN Industrial Gateway Configuration Guide
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