Host Interface Watchdog - Sierra Wireless AirLink RV50 Series User Manual

Field
Mode
Interval
Rev 1 Dec. 17
Description
Indicates the initial mode for the AirLink gateway
Options are:
MASTER
•
BACKUP (default)
•
Note: Designating a device as "Master" in this field does not make it the primary route for
data unless it is also given a higher priority number than the VRRP Backup device. See
Priority.
If the AirLink gateway is acting as VRRP Master, it advertises its Master status at the
interval (in seconds) configured in this field. Options are:
1–65535 seconds (Default value is 1.)
•

Host Interface Watchdog

The Host Interface Watchdog provides a way for you to ensure that the LAN
connection is alive. You can use this feature to monitor:
• A host connected to the LAN via an Ethernet or USB connection
When the Host Interface Watchdog is enabled, ALEOS sends a ping to the
connected device at configured intervals. You can disable Force Keepalive to only
send a ping when there is no traffic on the LAN interface. (See
Keepalive on page 136.)
If there is no response to the ping, the LAN interface is reset.
Note: The network interface is automatically determined from the IP address and the LAN
configuration.
After the interface comes back up, ALEOS sends another ping to the connected
device. If there is still no response to this ping, the AirLink gateway reboots. After
a reboot caused by the LAN Interface Watchdog, ALEOS waits an hour before
attempting pings to prevent repeated frequent reboots.
Note: DUN (PPP) is not supported. If the IP address for the host is on a DUN network, the
feature is disabled.
Note: The feature is not disabled when the interface uses Public Mode, but it cannot
monitor the host interface unless the mobile network provides a static IP.
135
LAN Configuration
Force LAN
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