User's Manual

RAK7240 User Manual V2.1
15
RAK7240
3.2.6
Network Ping Watchdog
Image 11 | Ping Watchdog I n t er f ace
Ping Watchdog monitors the communication quality of network links by constantly pinging
the specified IP address or domain name on the specified uplink network interface. When
network link failures are found, scheduled measures are taken automatically, such as
<restart interface>/<reduce the priority of this uplink network interface>/<restart the device>.
Note: Reducing the priority of an uplink interface only works when the LoRa gateway uses
both the Ethernet uplink link and the LTE cellular network uplink link.
WAN interface represents the Ethernet uplink interface and WWAN represents the LTE
cellular network uplink interface. If Ping watchdog is opened on both uplink network
interfaces at the same time and action is set to Increase Gatway Metric, the two uplink links
form backup links and automatically switch to another link when one link fails. The priority of
the two links is determined by the default gatway metric of their respective network
interfaces. The default gatway metric can be set in Network->WAN Network and
Network->Cellular Network. The lower the gatway metric, the higher the priority of the link.