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manasac
Staff
Staff
September 11, 2026

Technical Tip: How to generate an event when an FGFM tunnel remains down beyond a specified duration

  • September 11, 2026
  • 0 replies
  • 64 views

Description


This article describes how to configure an event handler for an event when an FGFM tunnel remains down beyond a specified duration and send a notification.


Scope


FortiAnalyzer.


Solution


Create a mail server from System Settings -> Advanced -> Mail server, as explained here: Mail Server.


Create a notification profile from Incidents & Event -> Event Handlers -> Notification Profiles as explained here: Creating notification profiles.


Go to Incident & Events -> Event Handlers and create a new event handler. Name a handler, for example, FortiGate FGFM Tunnel Fluctuation.


Select Correlation as the Event Handler type, and set Threshold Duration to 30m (30 minutes as an example).


Correlation sequence -> Select '+' to add a new rule -> Name: FGFMTunnelDown. Configure all the details below in the rule and select OK to save the config.


Define event conditions. Do not edit the settings in this config

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Add another rule with Name: FGFMTunnelUp. Configure all the details below in the rule and select OK to save the config.

Define Event Conditions. Do not edit the setting on this config.

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The above configuration indicates that the event should be generated if the FGFM tunnel does not come up after 30 minutes. Specify the duration based on the requirement.


Correlation criteria: Configure the correlation criteria to ensure that the FGFM tunnel down and FGFM tunnel up events belong to the same FortiGate device before the correlation event is generated.

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Map the notification profile created earlier under Handler Settings. Use a customised notification message if preferred; enter the desired message in the Use Custom Message field.


Enable the newly created event handler.

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