SABRE
™
RANGER 5000 User Guide
© 2017 Addvalue Innovation Pte Ltd. All rights reserved.
48
11.3.4.7 IP Watchdog
IP Watchdog is a fail-safe feature that enables the SABRE
™
RANGER 5000 to keep the IP
connection alive. This can prevent the loss of IP connection due to unexpected causes and help
the terminal to acquire the IP connection again.
There are two types of watchdog mechanism:
1.
Periodic Reboot
The reboot is based on the pre-configured time period regardless of the connection status.
2.
Ping based Watchdog
After all the pre-configured IP addresses failed to ping, the terminal will perform system reboot
automatically. The Ping based Watchdog can only be activated when it is set in Multi-user router
mode with active PDP context. User can define 3 sets of IP addresses. Based on the time intervals
and numbers of tries, the terminal can verify whether the connection is still available.
As long as
the terminal is able to ping any of the IP addresses, the watchdog will not trigger a system
reboot.
NOTE:
In Single-user Router mode, the terminal will automatically disable Ping based Watchdog feature
.
Navigate to
Menu > Settings > Terminal Settings> IP Watchdog
to enable the IP Watchdog
feature.
Periodic Reboot
i. Select
Enabled
to enable the Periodic Reboot feature.
ii. Select
Disabled
if you do not need the feature.
iii. Enter the duration for the terminal to trigger a periodic reboot.
iv. Click
Apply
for the new configuration to take effect
Ping based Watchdog
i. Select
Enabled
to enable the Ping based Reboot.
ii. Select
Disabled
if you do not need the feature.
iii. Enter the IP addresses with the number of retries (from 0 to 255).
iv. Enter the test intervals (from 5 to 1440) minutes
v. Click Update for the new configuration to take effect
vi. Tick “No ping request if IP traffic is detected within the ping interval” to save the data usage.
Figure 61
