| APPLICATION | -- |
| CHASSIS | -- |
| FABRIC_MODULE | -- |
| FAN_MODULE | -- |
| LINE_CARD | -- |
| MOTHERBOARD | -- |
| OTHER | -- |
| POWER_SUPPLY | -- |
| RACK | A rack unit in a multi-rack device (e.g. IOS-XR "Rack 0"). Distinguished from CHASSIS to represent the physical rack enclosure separately from the logical chassis. This part type is only present on Cisco IOS-XR devices. |
| ROUTING_ENGINE | -- |
| STACK | -- |
| STACK_MODULE | Stacking modules are additional parts that, when attached to stackable switches, allow them to stack with each other and offer flexible, unified management. Currently only supported for Cisco devices. |
| STACK_PORT | -- |
| STACK_SWITCH | -- |
| SUPERVISOR | -- |
| TRANSCEIVER | -- |
| UNMODELED_BACKUP_DEVICE | The device part for which we don't have enough information to model it. For example on Velocloud we collect from the controller, which doesn't give any visibility into the backup device of an HA pair. All endpoints that return data about the devices it manages omits the backup device except for its serial number. |