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This topic describes defining the properties of different event types.
 Host and service availability
Host down
This event is raised when every service on the host is not responding. You have to decide the way nVision determines the host is down. It can depend on number of minutes it does not respond or number of polls. This event will be monitored on every host that monitors at least one service.
Property
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Description
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Specified number of polls
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Check this option if you want the event to be raised after all host services polls fail a specified number of times (with timeout).
Enter the number of failed polls in the edit box after which the event will be raised and the host status will change to down.
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Specified number of minutes
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Check this option if you want the event to be raised after all host services polls fail during specified number of minutes (with timeout). Please remember that this period is measured since last successful poll. If it will be smaller than the monitoring time, you may get false alerts between every host poll.
Enter the number of minutes in the edit box after which the event will be raised and the host status will change to down.
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Service down
This event is raised when a specific service is not responding. You have to decide the way nVision determines the service is down. It can depend on number of minutes it does not respond or number of polls.
Property
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Description
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Service
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Select the service you want to monitor. This event will be monitored on every host that actually monitors the selected service.
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Specified number of polls
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Check this option if you want the event to be raised after the specified number of service polls fail (with timeout).
Enter the number of failed polls in the edit box after which the event will be raised.
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Specified number of minutes
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Check this option if you want the event to be raised after services polls fail during a specified number of minutes (with timeout). Please remember that this period is measured since the last successful poll. If it will be smaller than the monitoring time, you may get false alerts between every service poll.
Enter the number of minutes in the edit box after which the event will be raised.
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Service performance
Raised when a service experiences unusual slow down or too many requests/packets are lost.
Property
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Description
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Service
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Select the service you want to monitor. This event will be monitored on every host that actually monitors the selected service.
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Check last
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The number of last minutes you would like to be checked.
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Generate event when
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Check at least one of the condition check boxes described below. If you check both then the event will be generated if at least one of the conditions is met.
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Average/Each response time
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Check Average response time if you would like an event to be generated whenever a service experiences any slowdown.
•nVision checks an average value as a default. You can change it to check every value by clicking on the Average label. The label text changes to Each then to indicate that every probe will be checked separately. •Enter the response time threshold in milliseconds. The event will be generated when the response time is higher than this value. •Enter the reset threshold in the next field. Please read the Rising, falling and reset thresholds topic for more information about thresholds. |
Lost packets percentage
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Check Lost packets percentage if you would like an event to be generated when the number of lost requests is too high.
•Enter the threshold value. The event will be generated when the percent of packets lost is higher than this value. •Enter the reset threshold in the next field. |
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Interface down
This event will be generated (started) when any network interface goes down and it will end when the interface status is up again.
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Host status change
Can be generated for any host status change, even when a host changes a status from “Down” to “Up”. This event will be monitored on every host.
Property
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Description
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Generate event when
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Select the status for which you would like an event to be raised. You can have an event raised whenever a host status changes to “Up”, “Warning” or “Down”. Just select the required option.
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New host found
The event will be generated when the new host is found and added to the map.
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 Specific service test
Web page load
With this event you can test your web page load time. This event will be monitored on every host that actually monitors any page load (has such counter defined).
Property
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Description
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Check last
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The number of last minutes you would like to be checked.
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Generate event when
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•nVision checks an average value as a default. You can change it to check every value by clicking on the Average label. The label text changes to Each then to indicate that every probe will be checked separately. •Enter the page load time threshold in milliseconds. The event will be generated when the page load time is higher than this value. |
End event when
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Enter the reset threshold in the next field.
Please read the Rising, falling and reset thresholds topic for more information about thresholds.
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Web page content change rate
Allows preventing accidental changes to your web page content (i.e. changed by hackers). It will be raised whenever the probe discovers that the percent of page content has changed over the threshold. This event will be monitored on every host that actually monitors any page content change (has such counter defined).
Property
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Description
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Check last
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The number of last minutes you would like to be checked.
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Average page content change rate
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•nVision checks an average value as a default. However, you can change it to check every value by clicking on the Average label. The label text changes to Each then to indicate that every probe will be checked separately. •Enter the page load time threshold in milliseconds. The event will be generated when the page load time is higher than this value. |
End event when
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The event will end when the page content returns to the (more) original and the percentage of change drops under the reset threshold.
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POP3 login time
Raised when there is a problem logging to the mail server. This event will be monitored on every host that actually monitors any POP3 login time (has such counter defined).
Property
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Description
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Check last
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The number of last minutes you would like to be checked.
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Average POP3 login time
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•nVision checks an average value as a default. You can change it to check every value by clicking on the Average label. The label text changes to Each then to indicate that every probe will be checked separately. •Enter the POP3 login time threshold in milliseconds. The event will be generated when the page load time is higher than this value. |
End event when
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Enter the reset threshold in the next field.
Please read the Rising, falling and reset thresholds topic for more information about thresholds.
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Send mail time
Checks for any problems while sending an e-mail message. This event will be monitored on every host that actually monitors any send mail time (has such counter defined).
Property
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Description
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Check last
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The number of last minutes you would like to be checked.
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Average send mail time
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•nVision checks an average value as a default. You can change it to check every value by clicking on the Average label. The label text changes to Each then to indicate that every probe will be checked separately. •Enter the POP3 login time threshold in milliseconds. The event will be generated when the page load time is higher than this value. |
End event when
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Enter the reset threshold in the next field.
Please read the Rising, falling and reset thresholds topic for more information about thresholds.
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 Counters
SNMP threshold
Property
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Description
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Counter
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Select the SNMP counter to be checked.
Please remember that such counter will be checked only on hosts which actually monitor such counter. So to have the event properly working you have to setup such counter on every host.
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Check last
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The number of last minutes you would like to be checked.
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Average value
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•nVision checks an average value as a default. You can change it to check every value by clicking on the Average label. The label text changes to Each then to indicate that every probe will be checked separately. •Enter the POP3 login time threshold in milliseconds. The event will be generated when the page load time is higher than this value. |
End event when
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Enter the reset threshold in the next field.
Please read the Rising, falling and reset thresholds topic for more information about thresholds.
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Note
•Please note that setting long time periods to check may slow the program down. If the counter is polled very often then many probes are collected and checking all of them consumes CPU. Do not set this period to more than 10 minutes for hosts that are polled more often than every 10 seconds. |
Windows threshold
Property
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Description
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Counter
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Select Windows counter to be checked.
Please remember that such counter will be checked only on hosts which actually monitor such counter. So to have the event properly working you have to setup such counter on every host
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Check last
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The number of last minutes you would like to be checked.
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Average value
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•nVision checks an average value as a default. You can change it to check every value by clicking on the Average label. The label text changes to Each then to indicate that every probe will be checked separately. •Enter the POP3 login time threshold in milliseconds. The event will be generated when the page load time is higher than this value. |
End event when
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Enter the reset threshold in the next field.
Please read the Rising, falling and reset thresholds topic for more information about thresholds.
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Note
•Please note that setting long time periods to check may slow the program down. If the counter is polled very often then many probes are collected and checking all of them consumes CPU. Do not set this period to more than 10 minutes for hosts that are polled more often than every 10 seconds. |
 Windows
Windows service status change
Property
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Description
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Generate event when
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Select the appropriate option when this event should be generated: when the service stops, pauses and/or starts.
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All services
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Select to generate this event for all Windows services.
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Selected services
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Select this option to monitor only one specific Windows service.
Click the green plus icon and select the services to be monitored.
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New entry in Windows Event Log
This event will be generated when a new Windows Event Log entry meets the filter.
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 Other
Change on switch ports
Property
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Description
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Generate event when
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The event is generated if a device is connected, disconnected or its port has changed.
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Only for new devices connected to the switch
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Select to generate this event for new devices only.
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SNMP trap
Property
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Description
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MIB filter
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Event will be triggered if the device sends a SNMP trap related to any OID or only to the selected OID.
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Time schedule
Property
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Description
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Time schedule
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The event is generated on specific days and at specific time as defined by the administrator.
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SysLog Message
Property
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Description
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SysLog Message
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The event is generated when the host sends SysLog message containing keywords specified in the filter set on configuration.
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Agent status
Property
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Description
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Agent status
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The event is generated if Agent is not connected for a specific number of days.
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 DataGuard
Mobile device connected or disconnected
Property
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Description
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Generate event when
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The event is generated if a device is connected or disconnected.
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Generate this event for specified devices type
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Select the types of devices for which the event is generated.
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File operation on mobile device
Property
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Description
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Generate event when
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The event is generated if a file is created, deleted, renamed or written to existing file.
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Specify additional conditions for the event
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Provide a file mask if necessary.
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Generate this event for specified devices type
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Select the types of devices for which the event is generated.
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