ProSoft Technology RLXIC-EH User Manual Page 45

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Configuring your RLXIC-EV RLXIC-EV Intelligent Cellular
User Manual RadioLinx® Intelligent Cellular Ethernet Gateway for Verizon
ProSoft Technology, Inc. Page 45 of 104
March 10, 2010
5.6.1 Keep Alive
Keepalive is used to test the connection to the cellular network by pinging an IP
address after a specified period of inactivity. Keepalive is only recommended for
users who have a remote terminated device that infrequently communicates to
the network or if you have experienced issues over time where the device can no
longer be reached remotely.
When Keepalive pings the IP address, an acknowledgment indicates there is an
active connection to the network. If the RLXIC-EV does not receive a response
from the IP address, it will make additional attempts according to a backoff
algorithm before determining the Internet connection is not functioning properly. If
it determines the connection is not functioning, the device will then attempt to
reconnect to the carrier to reestablish IP connectivity.
Data usage using Keepalive
Keepalive is an optional feature. If you frequently pass data with your device, you
most likely do not need to have Keepalive enabled. When using Keepalive, be
aware that a ping moves approximately 66 bytes of data over the network and is
billable by the carrier. The following *IPPING settings will incur approximate
monthly data usage in addition to any other data usage:
*IPPING Estimated Usage
15 minutes 400k / month
30 minutes 200k / month
60 minutes 100k / month
120 minutes 50k / month
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