| Name | Data Type | Default Value | Qualifiers |
| Name | Data Type | Value |
| LinkSpeeds | uint64[] | |
| Description | string | This array property specifies the link speed to be used for the some of the Ethernet NIC tests. If no link speeds are specified, then the default set of link speeds as defined by the vendor will be used. |
| ModelCorrespondence | string | CIM_EthernetNICDiagnosticServiceCapabilities.LinkSpeedsSupported |
| PUnit | string | bit / second * 10^6 |
| LoopbackLayers | uint16[] | |
| Description | string | This array property is used by a client for the Internal Loopback test to specify the layer to test. If no value is specified by the client, then the vendor-defined default value will be used. |
| ModelCorrespondence | string | CIM_EthernetNICDiagnosticSettingData.OtherLoopbackLayer, CIM_EthernetNICDiagnosticServiceCapabilities.LoopbackLayersSupported |
| ValueMap | string | 0, 1, 2, 3 |
| Values | string | Unknown, Other, PHY Layer, MAC Layer |
| OtherLoopbackLayers | string[] | |
| Description | string | A string that describes the Ethernet NIC Layer to test when the LoopbackLayer property is set to 1 ("Other"). This property must be set to null when LoopbackLayer is any value other than 1. |
| ModelCorrespondence | string | CIM_EthernetNICDiagnosticServiceCapabilities.OtherLoopbackLayersSupported, CIM_EthernetNICDiagnosticServiceCapabilities.OtherLoopbackLayers |
| PacketSizes | uint16[] | |
| Description | string | This array property specifies the packet sizes to be used for the some of the Ethernet NIC tests. If no packet sizes are specified, then the default set of packet sizes as defined by the vendor will be used. |
| ModelCorrespondence | string | CIM_EthernetNICDiagnosticCapabilities.PacketSizesSupported |
| PUnit | string | Byte |