M2M IDG500AM-0T001 User Manual page 62

M2M Cellular Gateway
Configuration Path
Interface Name
Physical Interface
Operation Mode
Line Speed
Configuration Path
Interface Name
WAN Type
Configuration Path
Interface Name
Preferred SIM Card
So, the initial status of two WAN connections using different SIM card is shown in the following
diagram.
Next, Dual SIM Failover process with SIM‐A First scenario is shown in the following diagram. The
steps are:
Pre‐state: System tries to connect to mobile system for an Internet connection by using
connection profile in SIM‐A (for SIM‐A First scenario) after system rebooting. If the
connection is successful, data transfer from Intranet to Internet will be executed in
this WAN connection. Call the connection as SIM‐A connection. But if SIM‐A
connection failed, system will try to connect to mobile system by using connection
profile in SIM‐B. If it is successful, call it as SIM‐B connection. In this way, use SIM‐A
and SIM‐B alternately for a successful WAN connection. At last, assume it is SIM‐m
connection here for a successful connection, m can be 'A' or 'B'.
S 1: When system discovers the SIM‐m connection is failed, system starts the failover process.
S 2: System tries to create another WAN connection by using connection profile in SIM‐n, and
use it for incoming data transmitting mission, where n can be 'A' or 'B'.
Index skipping is used to reserve slots for new function insertion, when required.
[Physical Interface]‐[Interface Configuration (WAN‐1)]
WAN‐1
3G/4G
Always on
50Mbps / 150Mbps
[Internet Setup]‐[Internet Connection Configuration (WAN‐1)]
WAN‐1
3G/4G
[Internet Setup]‐[3G/4G WAN Type Configuration]
WAN‐1
SIM‐A First
Cellular Network #1
Connected and
Data Transferring
Cellular Network #2
Gateway
SIM‐A
SIM‐B
Not Connected
Initial Status
(SIM-A First)
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