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[FineConnection web site]Error control (EC) is a very powerful feature that helps you quickly locate a problem, prevents superfluous Alerting and incorrect interpretation of a problem. EC tries to find the root-cause of a device that doesn’t respond to status requests anymore.
To be more precise, the above means that if a "No response" event occurs for a device, EC tries to find out whether the event is caused by a definite failure of the device itself OR by another device experiencing problems in the chain of devices (network paths) between the station running Monitor one (the "ThisStation" object on the map) and the device!
EC uses the information provided by the network map (connections and device types) to find out which device causes a "No response" event. It is therefore extremely important to set up your network maps as accurately/factually as possible. If a device "A" is physically connected to device "B", draw a link between them on your network map accordingly!
Without EC
By a failure of "Switch 10", four servers get the "No response" status. If Alerting by email is enabled, the network manager receives 5 email alerts (from which 4 are superfluous and incorrect!).
With Error control
Only "Switch 10" gets the "No response" status. The servers all get the "Unknown" status (blue tick). The network manager only receives one alert email.