Digi Connect WAN Series User Manual page 128

Digi Connect WAN Family web interface
Mobile (Cellular) Settings
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Ethernet Settings
WiFi Settings: These settings apply to device-initiated Remote Manager connections over
mobile/cellular, Ethernet, and Wi-Fi networks. Each network type has these settings:
Remote Manager Connection Keep-Alive settings: These settings control how often to
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send keep-alive packets over the device-initiated connection to Remote Manager, and
whether the Remote Manager-registered device waits before dropping the connection.
Keep-alives for the Remote Manager connection serve three basic purposes:
Keep the Remote Manager connection alive through network infrastructure such as
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routers, NATs and firewalls.
Inform the other (remote) side of the Remote Manager connection that its peer is still
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active.
Test the Remote Manager connection to detect whether it has stopped responding and
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should be abandoned. Recovery actions are taken as configured in other settings.
The Remote Manager-registered device and Remote Manager each perform their own
independent monitoring of the Remote Manager connection state (active, idle and missed
keep-alives). If Remote Manager protocol messages or data other than keep-alives is
exchanged over the Remote Manager connection, the idle timers that trigger keep-alives
are reset, and the consecutive missed keep-alive counts are cleared to zero.
The interval settings are used with the Assume connection is lost after n timeouts setting
to signal when the connection has been lost.
Device Send Interval: Specifies how frequently the device sends a keep-alive packet to
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Remote Manager if the Remote Manager connection is idle. Remote Manager expects to
receive either Remote Manager protocol messages or keep-alive packets from the device
at this interval.
Server Send Interval: Specifies how frequently the Remote Manager-registered device
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sends a keep-alive packet to Remote Manager if the Remote Manager connection is idle.
Remote Manager expects to receive either Remote Manager protocol messages or keep-
alive packets from the Remote Manager-registered device at this interval.
Important
tolerate to reduce the amount of data traffic.
Assume the connection is lost after n timeouts (Wait Count): After the number of
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consecutive expected keep-alives specified by this setting are missed according to the
configured intervals, the connection is considered lost and is closed by the device and
Remote Manager.
Digi Connect WAN Family User Guide
Digi recommends that you set this interval value as long as your application can
Configuration through the web interface
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