Troubleshooting Tip: Unable to delete SD-WAN Interface

Description

This article describes an error received when a user tries to delete the SD-WAN interface.

Scope

FortiManager and FortiGate.

Solution

The function Where Used is not displayed where the interface is being used.

To find exactly where the interface is, need to go through the features of SD-WAN itself, which is Performance SLA, Neighbor, and SD-WAN Rules.

Especially in Performance SLA, where it does not display the interface.

It is also possible to remove it from CLI as follows:

config system sdwan

    config health-check

        edit Google_DNS

            unset members

            next

        next

end

After removing all the interfaces in related features, then it is possible to delete the interface.

If receiving an error when confirming the changes:

It is possible to delete the interface from the FortiGate.

Related article:
Technical Tip: How to remove an interface from SD-WAN zone via CLI