Troubleshooting virtual clustering

Troubleshooting virtual clustering

Troubleshooting virtual clusters is similar to troubleshooting any cluster (see FGCP configuration examples and troubleshooting on page 1354). This section describes a few testing and troubleshooting techniques for virtual clustering.


To test the VDOM partitioning configuration

You can do the following to confirm that traffic for different VDOMs will be distributed among both FortiGate units in the virtual cluster. These steps assume the cluster is otherwise operating correctly.

1. Log into the web-based manager or CLI using the IP addresses of interfaces in each VDOM.

Confirm that you have logged into the FortiGate unit that should be processing traffic for that VDOM by checking the HTML title displayed by your web browser or the CLI prompt. Both of these should include the host name of the cluster unit that you have logged into. Also on the system Dashboard, the System Information widget displays the serial number of the FortiGate unit that you logged into. From the CLI the get system status command displays the status of the cluster unit that you logged into.

2. To verify that the correct cluster unit is processing traffic for a VDOM:

  • Add security policies to the VDOM that allow communication between the interfaces in the VDOM.
  • Optionally enable traffic logging and other monitoring for that VDOM and these security policies.
  • Start communication sessions that pass traffic through the VDOM.
  • Log into the web-based manager and go to System > HA > View HA Statistics. Verify that the statistics display shows more active sessions, total packets, network utilization, and total bytes for the unit that should be processing all traffic for the VDOM.
  • Optionally check traffic logging and the Top Sessions Widget for the FortiGate unit that should be processing traffic for that VDOM to verify that the traffic is being processed by this FortiGate unit.


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About Mike

Michael Pruett, CISSP has a wide range of cyber-security and network engineering expertise. The plethora of vendors that resell hardware but have zero engineering knowledge resulting in the wrong hardware or configuration being deployed is a major pet peeve of Michael's. This site was started in an effort to spread information while providing the option of quality consulting services at a much lower price than Fortinet Professional Services. Owns PacketLlama.Com (Fortinet Hardware Sales) and Office Of The CISO, LLC (Cybersecurity consulting firm).

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