While discovering network infrastructure devices, a switch appears in the inventory topology with a question...

In FortiNAC-F, theInventory topologyuses specific icons to represent the status and model of discovered network infrastructure. When a switch or other network device is discovered via SNMP, FortiNAC-F retrieves itsSystem ObjectID (sysObjectID)to identify the specific make and model. This OID is then compared against the internal database of supported device mappings.

Aquestion mark (?)icon appearing on a discovered switch indicates that while the discovery process successfully communicated with the device (meaning SNMP credentials were correct), theSNMP ObjectID is not recognizedor mapped in the current version of FortiNAC-F. This essentially means the device is "unsupported" by the current software out-of-the-box. Because the OID is unknown, FortiNAC-F does not know which CLI or SNMP command set to use for critical functions like L2 polling (host visibility) or VLAN switching (enforcement). To resolve this, an administrator can manually "Set Device Mapping" to a similar existing model or a "Generic SNMP Device" if only basic L3 visibility is required.

"Discovered devices displaying a'?' iconindicate the currently running version does not have a mapping for that device'sSystem OID(device is not supported). Device mappings are used to manage the device by performing functions such as L2/L3 Polling, Reading, and Switching VLANs." —Fortinet Technical Tip: Options for devices unable to be modeled in Inventory.