- Billion ADSL2+ Wireless Router User's Manual

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Main Port: User can select either “ADSL” or “3G” mode.
Failover / Failback: Set Enable to trigger ADSL / 3G failover / failback function ready.
Note: If 3G is set for main port, then there can be no option for failover/failback.
Backup Port: It links to backup port configuration page. It is necessary to configure it
when Failover/Failback be set.
Connectivity Decision: Set how many times of probing failed to switch backup port.
Failover Probe Cycle: Set the time duration for the Failover Probe Cycle to determine
when the router will switch to the backup connection (backup port) once the main
connection (main port) fails.
Note: The time set is for each probe cycle, but the decision to change to the backup
port is determined by Probe Cycle duration multiplied by connection Decision amount
(e.g. From the image above it will be 60 seconds multiplied by 5 consecutive fails).
Failback Probe Cycle: Set the time duration for the Failback Probe Cycle to
determine when the router will switch back to the main connection (main port) from the
backup connection (backup port) once the main connection is communicating again.
Note: The time set is for each probe cycle, but the decision to change to the backup
port is determined by Probe Cycle duration multiplied by Connection Decision amount
(e.g. From the image above it will be 60 seconds multiplied by 5 consecutive fails).
Detect Rule: