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Failover & Failback
WAN Port Service Detection Policy
WAN1:
Select
EWAN
or
4G/LTE
for WAN1 (The main WAN).
WAN2:
Select the
4G/LTE
for WAN2 as backup port if you select
EWAN
as WAN1.
Keep Backup Interface Connected:
Select if to keep backup WAN interface connected to the
internet. When select
By Signal Strength
,
please set the next minimum RSRP/RSSI.
Minimum RSRP / RSSI:
Set a minimum requirement for RSRP(Reference Signal Receiving Power)
and RSSI(Received Signal Strength Indicator) for initiating automatic WAN failback or failover
procedures.
Connectivity Decision & Probe Cycle:
Set a number of times and time in seconds to determine
when to switch to the backup link (WAN2) when primary link (WAN1) fails and vise versa.
Example, Auto failover takes place after straight
3
consecutive failures in every
30
seconds meaning
all traffic will hand over to backup link (WAN2) after primary link fails to response in total of 90 seconds,
30 seconds for 3 consecutive failures.
Note:
Failover and Failback follow the same
Connectivity Decision & Probe Cycle
rule to failover
from WAN1 to WAN2 or fallback from WAN2 to WAN1.
Failover/Fallback Rule Decisions:
Probe By Ping:
Enable Ping to the gateway or an IP address.
Gateway:
Internal system will wait for responses to the pings from the gateway of the WAN.
Host:
Internal system will wait for responses to the pings from a fixed IP address.
Probe by Signal Strength:
Enable to measure the LTE signal strength
Minimum RSRP / RSSI:
Set a minimum requirement for RSRP and RSSI for initiating
automatic WAN failback or failover procedures.
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