Warning: Modifying the configuration of any of the VoIP Active Script Performance monitors is not recommended; doing so prevents the VoIP setup utility from detecting pre-existing VoIP configuration.
For more information on the Active Script Performance Monitor, see Scripting Performance Monitors.
This script performance monitor has a context object used to poll for specific information about the device in context.
We have provided several code samples to help you in creating useful Active Script Performance Monitors for your devices.
To add a new Active Script performance monitor:
Note: Though the maximum timeout allowed is 60 seconds, you are highly discouraged from using a timeout longer than the default of 10 seconds. You are encouraged to use the shortest timeout possible.
Note: The use of reference variables in the Active Script performance monitor is optional. If you do use them, you must use Context.GetReferenceVariable,
for reference variables to be polled and their data graphed. Reference variables simplify your scripting code and enable you to write scripts efficiently, without having to use a list of device properties, as with the Script Action and Script Active Monitor. They manage the underlying SNMP or WMI mechanisms you would normally have manage to access SNMP or WMI counters on a remote device.
By using the Context.GetReferenceVariable
(variable name), you only need to specify the name of a pre-defined variable. WhatsUp Gold uses device credentials and connects to the target device using SNMP or WMI to retrieve the requested information. This information is stored in a variable that you can use later in your script. For more information, see Using the context object with performance monitors.
Note: The first time that you poll a WMI reference variable that requires two polls in order to calculate an average (such as "Processor\% Processor Time"), it returns "Null."
Having problems with your WMI monitor returning false negatives?
To edit an existing Active Script performance monitor:
Note: Though the maximum timeout allowed is 60 seconds, you are highly discouraged from using a timeout longer than the default of 10 seconds. You are encouraged to use the shortest timeout possible.
Note: The use of reference variables in the Active Script performance monitor is optional. If you do use them, you must use Context.GetReferenceVariable,
for reference variables to be polled and their data graphed. Reference variables simplify your scripting code and enable you to write scripts efficiently, without having to use a list of device properties, as with the Script Action and Script Active Monitor. They manage the underlying SNMP or WMI mechanisms you would normally have to manage in order to access SNMP or WMI counters on a remote device.
By using the Context.GetReferenceVariable
(variable name), you only need to specify the name of a pre-defined variable. WhatsUp Gold uses device credentials and connects to the target device using SNMP or WMI to retrieve the requested information. This information is stored in a variable that you can use later in your script. For more information, see Using the context object with performance monitors.