Technical Tip: FortiLink Topology display issue observed on the FortiGate GUI after FortiSwitch upgrade to v7.4.7 (or later) or v7.6.2 (or later)

[csharma85]

Description	This article describes an issue with FortiGate GUI displaying incorrect FortiLink Topology.
Scope	FortiGate, FortiSwitch.
Solution	This issue impacts FortiGates running any version of FortiOS that are managing one or more FortiSwitch units operating on FortiSwitch v7.4.7 (or later) or v7.6.2 (or later). The issue happens when any managed switch has more than five trunk members; the Topology view on the FortiGate may display incorrectly. However, this visual issue does not affect data traffic. This is a reported issue that will be fixed in v7.4.9, v7.6.4, and v8.0.0. (Bug ID #1174647). Workaround: Downgrade FortiSwitch to v7.6.1 or v7.4.6. Limit the total number of trunk member ports to five or fewer on the affected switch. Change the FortiLink management mode to HTTPS on the affected switch.