Failover Advanced Settings - E-Lins H820QO Series User Manual

available, using the high priority interface as WAN port.
If back to high priotrity is unchecked, even if the high priority interface is available, router will keep
current interface as WAN port, it won't switch to high priority interface.
Primary/Secondary/Third: interface which can be treat as WAN port. There are 4 options,
Wired-WAN, Wifi_client, Cell_mobile, and None.
 Current interface: show working interface,
 Host 1 to ping / Host 2 to ping: It is external IP address or domain name for checking the
connection is available.
 Ping timeout: If ping packet is sent, the response packet is not received before timeout, then
this ping is failed.
 Max retries: If the ping is failed, the failed counter will add one. If the failed counter is bigger or
equal to the Max retries, then system will say this interface is unavailable.
If the ping is succeeding, failed counter will be reset to 0 at anytime.
 Interval between ping: The time between twice ping. The unit is second.

3.5.3.2 Failover Advanced settings

 Cell Standby: choose Cell status(connect, disconnect, or radio off) when cell acts as backup
interface.
 SMS Alarm: if need to send SMS alarm when working interface switchover.
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H820QO User Manual
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