UM-00006 v1.1
www.netcommwireless.com
NTC-8000 – M2M Multi-Port Network Gateway
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WLAN Failover Backup
The WLAN Failover Backup feature of the NTC-8000-01 is designed to provide a backup mobile broadband internet connection in
case the primary WLAN connection should fail.
Figure 12 - WLAN Failover Settings:
CONNECTION OPTION
DESCRIPTION
WLAN Only
The failover function is completely disabled and the gateway always uses the WLAN connection only. The
Mobile Broadband (MBB) connection will not be used.
MBB Only
The WLAN failover is completely disabled and the gateway always uses a Mobile Broadband (MBB)
connection only.
MBB Failover if WLAN Link down
The gateway uses a WLAN connection as the primary connection and a Mobile Broadband (MBB)
connection as a backup connection. When the WLAN connection is down the gateway will start using the
MBB connection.
MBB Failover with Ping
The gateway uses a WLAN connection as the primary connection and a Mobile Broadband (MBB)
connection as a backup connection. When the server(s) entered below does not respond to the
configured ping requests, the gateway will start using the MBB connection.
The NTC-8000-01 sends ping requests to the specified Destination and Second Address to verify
whether the internet connection is online and functioning. The Fail Count specifies how many successive
ping attempts can fail before the NTC-8000-01 fails over to the Mobile Broadband Internet WAN
connection while the Success Count specifies how many ping attempts must succeed in order to reset
the Fail counter.
To use this feature you will need both a WLAN and MBB connection.
The Periodic PING Timer is the time between ping requests to the first and second destination addresses
and must be an integer between 3 and 65535 seconds. The Periodic PING Accelerated Timer is the time
between pings to the first and second destination addresses after the gateway gets 3 consecutive ping
failures. Fail Count and Success Count must be an integer between 1 and 65535 seconds.
Table 16 - WLAN Failover Settings
When the Mobile Broadband (MBB) connection is set to Always On the MBB connection will always be online as a backup
connection even through the gateway may not be using it when the WLAN connection is available. This allows the gateway to
failover quickly to the existing MBB connection.
When the Mobile Broadband (MBB) connection is set to Dial when required the gateway will only dial the MBB connection when the
WLAN connection fails. The gateway will also automatically disconnect the MBB connection once the WLAN connection is restored