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Msvm_InternalEthernetPort class

Hyper-V

Represents an internal Ethernet port (network adapter). This type of Ethernet port gives virtual machines (VMs) access to the virtualization server running the networking software. The internal network adapters allow the VMs network traffic to be routed or filtered before leaving the physical system.

The following syntax is simplified Managed Object Format (MOF) code, and it includes all of the inherited properties.

Syntax

class Msvm_InternalEthernetPort : CIM_EthernetPort
{
  string   Caption = "Ethernet Port";
  string   Description = "Microsoft Internal Ethernet Port";
  string   ElementName;
  datetime InstallDate;
  string   Name;
  uint16   OperationalStatus[] = 2;
  string   StatusDescriptions[] = { "OK" };
  string   Status;
  uint16   HealthState = 5;
  uint16   EnabledState = 5;
  string   OtherEnabledState;
  uint16   RequestedState = 12;
  uint16   EnabledDefault = 2;
  datetime TimeOfLastStateChange;
  string   SystemCreationClassName;
  string   SystemName;
  string   CreationClassName = "Msvm_InternalEthernetPort";
  string   DeviceID = "Microsoft:GUID\device-specific data";
  boolean  PowerManagementSupported;
  uint16   PowerManagementCapabilities[];
  uint16   Availability;
  uint16   StatusInfo;
  uint32   LastErrorCode;
  string   ErrorDescription;
  boolean  ErrorCleared;
  string   OtherIdentifyingInfo[];
  uint64   PowerOnHours;
  uint16   TotalPowerOnHours;
  string   IdentifyingDescriptions[];
  uint16   AdditionalAvailability[] = 6;
  uint64   MaxQuiesceTime;
  uint16   LocationIndicator;
  uint64   MaxSpeed = 1000000000;
  uint64   RequestedSpeed = 1000000000;
  uint16   UsageRestriction = ;
  string   OtherPortType;
  uint64   Speed;
  string   OtherNetworkPortType;
  uint16   PortNumber;
  uint16   LinkTechnology = 2;
  string   OtherLinkTechnology;
  string   PermanentAddress;
  boolean  FullDuplex = TRUE;
  boolean  AutoSense = True;
  uint64   SupportedMaximumTransmissionUnit = 1500;
  uint64   ActiveMaximumTransmissionUnit = 1500;
  uint16   PortType;
  string   NetworkAddresses[];
  uint32   MaxDataSize = ;
  uint16   Capabilities[];
  string   CapabilityDescriptions[];
  uint16   EnabledCapabilities[];
  string   OtherEnabledCapabilities[];
};

Members

The Msvm_InternalEthernetPort class has these types of members:

Methods

The Msvm_InternalEthernetPort class has these methods.

MethodDescription
EnableDevice

This method is not supported.

OnlineDevice

This method is not supported.

QuiesceDevice

This method is not supported.

RequestStateChange

This method is not supported.

Reset

This method is not supported.

RestoreProperties

This method is not supported.

SaveProperties

This method is not supported.

SetPowerState

This method is not supported.

 

Properties

The Msvm_InternalEthernetPort class has these properties.

ActiveMaximumTransmissionUnit
Data type: uint64
Access type: Read-only

The active or negotiated maximum transmission unit (MTU) that can be supported. This property is inherited from CIM_NetworkPort and is always set to 1500.

AdditionalAvailability
Data type: uint16 array
Access type: Read-only

Any additional availability and status of the device, beyond that specified in the Availability property. This property is inherited from CIM_LogicalDevice and is always set to 6 (Not Applicable).

AutoSense
Data type: boolean
Access type: Read-only

Indicates whether the network port is capable of automatically determining the speed or other communications characteristics of the attached network media. This property is inherited from CIM_NetworkPort and is always set to True.

Availability
Data type: uint16
Access type: Read-only

The primary availability and status of the device. This property is inherited from CIM_LogicalDevice and is not used.

Capabilities
Data type: uint16 array
Access type: Read-only

Capabilities of the Ethernet port. For example, the device might support AlertOnLan, WakeOnLan, Load Balancing, or FailOver. If failover or load balancing capabilities are listed, a CIM_SpareGroup (failover) or CIM_ExtraCapacityGroup (load balancing) should also be defined to completely describe the capability. This property is inherited from CIM_EthernetPort.

Unknown (0)
Other (1)
AlertOnLan (2)
WakeOnLan (3)
FailOver (4)
LoadBalancing (5)
CapabilityDescriptions
Data type: string array
Access type: Read-only

An array of free-form strings that provides more detailed explanations for any of the Ethernet port features that are indicated in the Capabilities array. Note, each entry of this array is related to the entry in the Capabilities array that is located at the same index. This property is inherited from CIM_EthernetPort.

Caption
Data type: string
Access type: Read-only

A short textual description (one- line string) of the object. This property is inherited from CIM_ManagedElement and is always set to "Ethernet Port".

CreationClassName
Data type: string
Access type: Read-only

The name of the class or the subclass used in the creation of an instance. When used with the other key properties of this class, this property allows all instances of this class and its subclasses to be uniquely identified. This property is inherited from CIM_LogicalDevice and is always set to "Msvm_InternalEthernetPort".

Description
Data type: string
Access type: Read-only

A textual description of the object. This property is inherited from CIM_ManagedElement and is always set to "Microsoft Internal Ethernet Port".

DeviceID
Data type: string
Access type: Read-only

An address or other identifying information used to uniquely name the logical device. This property is inherited from CIM_LogicalDevice and is always set to "Microsoft:GUID\device-specific data".

ElementName
Data type: string
Access type: Read/write

A user-friendly name for the object. This property allows each instance to define a user-friendly name in addition to its key properties, identity data, and description information. This property is inherited from CIM_ManagedElement and is generated based on the NIC present in the host.

EnabledCapabilities
Data type: uint16 array
Access type: Read-only

Specifies which capabilities are enabled from the list of all supported ones, which are defined in the Capabilities array. This property is inherited from CIM_EthernetPort.

Unknown (0)
Other (1)
AlertOnLan (2)
WakeOnLan (3)
FailOver (4)
LoadBalancing (5)
EnabledDefault
Data type: uint16
Access type: Read-only

An administrator's default or startup configuration for the enabled state of an element. This property is inherited from CIM_EnabledLogicalElement and is always set to 2 (Enabled).

EnabledState
Data type: uint16
Access type: Read-only

The enabled and disabled states of an element. This property is inherited from CIM_EnabledLogicalElement and is always set to 5 (Not Applicable).

ErrorCleared
Data type: boolean
Access type: Read-only

Indicates whether the error reported in the LastErrorCode property is now cleared. This property is inherited from CIM_LogicalDevice and is not used.

ErrorDescription
Data type: string
Access type: Read-only

A free-form string that provides more information about the error recorded in the LastErrorCode property, and information on any corrective actions that may be taken. This property is inherited from CIM_LogicalDevice property and is not used.

FullDuplex
Data type: boolean
Access type: Read-only

Indicates whether the port is operating in full duplex mode. This property is inherited from CIM_NetworkPort and is always set to TRUE.

HealthState
Data type: uint16
Access type: Read-only

The current health of the element. This attribute expresses the health of this element but not necessarily that of its subcomponents. This property is inherited from CIM_ManagedSystemElement and is always set to 5 (OK).

IdentifyingDescriptions
Data type: string array
Access type: Read-only

An array of free-form strings that provide explanations and details behind the entries in the OtherIdentifyingInfo property array. Note that each entry of this array is related to the entry in the OtherIdentifyingInfo property array that is located at the same index. This property is inherited from CIM_LogicalDevice and is not used.

InstallDate
Data type: datetime
Access type: Read-only

A datetime value that indicates when the object was installed. Lack of a value does not indicate that the object is not installed. This property is inherited from CIM_ManagedSystemElement.

LastErrorCode
Data type: uint32
Access type: Read-only

The last error code reported by the logical device. This property is inherited from CIM_LogicalDevice and is not used.

LinkTechnology
Data type: uint16
Access type: Read-only

The types of links. When set to 1 ("Other"), the related property OtherLinkTechnology contains a string description of the type of link. This property is inherited from CIM_NetworkPort and is always set to 2 (Ethernet).

LocationIndicator
Data type: uint16
Access type: Read-only

The state of an indicator that is part of a device. This property is inherited from CIM_LogicalDevice but it is not used.

MaxDataSize
Data type: uint32
Access type: Read-only

The maximum size of the INFO (non-MAC) field that will be received or transmitted. This property is inherited from CIM_EthernetPort and is always set to 1500.

MaxQuiesceTime
Data type: uint64
Access type: Read-only

This property is inherited from CIM_LogicalDevice and is not used.

MaxSpeed
Data type: uint64
Access type: Read-only

The maximum bandwidth of the port, in bits per second. This property is inherited from CIM_LogicalPort and is always set to 1000000000.

Name
Data type: string
Access type: Read-only

The label by which the object is known. When subclassed, this property can be overridden to be a key property. This property is inherited from CIM_ManagedSystemElement.

NetworkAddresses
Data type: string array
Access type: Read-only

The Ethernet/802.3 MAC addresses formatted as twelve hexadecimal digits (for example, "010203040506"), with each pair representing one of the six octets of the MAC address in "canonical" bit order (the Group address bit is found in the low order bit of the first character of the string.) This property is inherited from CIM_EthernetPort.

OperationalStatus
Data type: uint16 array
Access type: Read-only

The current statuses of the element. This property is inherited from CIM_ManagedSystemElement and is always set to 2 (OK).

OtherEnabledCapabilities
Data type: string array
Access type: Read-only

An array of free-form strings that provides more detailed explanations for any of the enabled capabilities that are specified as 1 (Other). This property is inherited from CIM_EthernetPort.

OtherEnabledState
Data type: string
Access type: Read-only

A string that describes the enabled or disabled state of the element when the EnabledState property is set to 1 (Other.) This property must be set to null when the EnabledState property is any value other than 1. This property is inherited from CIM_EnabledLogicalElement and is not used.

OtherIdentifyingInfo
Data type: string array
Access type: Read-only

Any data, in addition to device ID information, that could be used to identify a logical device. For example, you could use this property to hold the operating system's user-friendly name for the device. This property is inherited from CIM_LogicalDevice and is not used.

OtherLinkTechnology
Data type: string
Access type: Read-only

A string value that describes the LinkTechnology property when it is set to 1 (Other). This property is inherited from CIM_NetworkPort but is not used.

OtherNetworkPortType
Data type: string
Access type: Read-only

This property is deprecated. Use the PortType property. This property is inherited from CIM_NetworkPort.

Deprecated description: The type of module, when the PortType property is set to 1 (Other.)

OtherPortType
Data type: string
Access type: Read-only

The type of module, when the PortType property is set to 1 (Other). This property is inherited from CIM_LogicalPort and is always set to NULL.

PermanentAddress
Data type: string
Access type: Read-only

The network address that is hardcoded into a port. This address can be changed using a firmware upgrade or a software configuration. When this change is made, the field should be updated at the same time. This should be left blank if no hardcoded address exists for the network adapter. This property is inherited from CIM_NetworkPort.

PortNumber
Data type: uint16
Access type: Read-only

Network ports are often numbered relative to either a logical module or a network element. This value is 1 for emulated NICs, 0 for all others. This property is inherited from CIM_NetworkPort.

PortType
Data type: uint16
Access type: Read-only

The specific mode that is currently enabled for the port. When set to 1 (Other), the related property OtherPortType contains a string description of the type of port. This property is inherited from CIM_EthernetPort.

Unknown (0)
Other (1)
//50 Copper 10BaseT (50)
10-100BaseT (51)
100BaseT (52)
1000BaseT (53)
2500BaseT (54)
10GBaseT (55)
10GBase-CX4 (56)
//100 Fiber 100Base-FX (100)
100Base-SX (101)
1000Base-SX (102)
1000Base-LX (103)
1000Base-CX (104)
10GBase-SR (105)
10GBase-SW (106)
10GBase-LX4 (107)
10GBase-LR (108)
10GBase-LW (109)
10GBase-ER (110)
10GBase-EW (111)
Vendor Reserved (16000–65535)
PowerManagementCapabilities
Data type: uint16 array
Access type: Read-only

The power management capabilities of the device. This property is inherited from CIM_LogicalDevice and is not used.

PowerManagementSupported
Data type: boolean
Access type: Read-only

Indicates whether the device can be power managed. This property is inherited from CIM_LogicalDevice and is not used.

PowerOnHours
Data type: uint64
Access type: Read-only

The number of consecutive hours that this device has been powered, since its last power cycle. This property is inherited from CIM_LogicalDevice and is not used.

RequestedSpeed
Data type: uint64
Access type: Read-only

The requested bandwidth of the port, in bits per second. The actual bandwidth is reported in the Speed property. This property is inherited from CIM_LogicalPort and is always set to 1000000000.

RequestedState
Data type: uint16
Access type: Read-only

The last requested or desired state for the management service. When the EnabledState property is set to 5 (Not Applicable), then this property has no meaning. This property is inherited from CIM_EnabledLogicalElement and is always set to 12 (Not Applicable).

Speed
Data type: uint64
Access type: Read-only
Qualifiers: Override, Units ("Bits per Second")

The current bandwidth of the port in bits per second. For ports that vary in bandwidth or for those where no accurate estimation can be made, this property should contain the nominal bandwidth. This property is inherited from CIM_NetworkPort.

Status
Data type: string
Access type: Read-only

This property is inherited from CIM_ManagedSystemElement but it is not used.

StatusDescriptions
Data type: string array
Access type: Read-only

Strings that describe the various OperationalStatus array values. Note that entries in this array are correlated with those at the same array index in OperationalStatus. This property is inherited from CIM_ManagedSystemElement and is always set to "OK".

StatusInfo
Data type: uint16
Access type: Read-only

The state of the logical device. This property is inherited from CIM_LogicalDevice and is not used.

SupportedMaximumTransmissionUnit
Data type: uint64
Access type: Read-only

The maximum transmission unit (MTU) that can be supported. This property is inherited from CIM_NetworkPort and is always set to 1500.

SystemCreationClassName
Data type: string
Access type: Read-only

This property is inherited from CIM_LogicalDevice but it is not supported

SystemName
Data type: string
Access type: Read-only

The virtual machine ID in GUID form. This property is inherited from CIM_LogicalDevice.

TimeOfLastStateChange
Data type: datetime
Access type: Read-only

The date or time when the EnabledState property of the element last changed. If the state of the element has not changed and this property is populated, then it must be set to a 0 interval value. If a state change was requested, but rejected or not yet processed, the property must not be updated. This property is inherited from CIM_EnabledLogicalElement and is not used.

TotalPowerOnHours
Data type: uint16
Access type: Read-only

The total number of hours that this device has been powered. This property is inherited from CIM_LogicalDevice and is not used.

UsageRestriction
Data type: uint16
Access type: Read-only

In some circumstances, a logical port might be identifiable as a front end or back end port. If there is no restriction on the use of the port, then the value should be set to 4 ("Not Restricted"). This property is inherited from CIM_LogicalPort and is always set to 4 (Not Restricted).

Remarks

Access to the Msvm_InternalEthernetPort class might be restricted by UAC Filtering. For more information, see User Account Control and WMI.

Examples

See Querying Networking Objects.

Requirements

Minimum supported client

None supported

Minimum supported server

Windows Server 2008

End of client support

None supported

End of server support

Windows Server 2012

Namespace

Root\Virtualization

MOF

WindowsVirtualization.mof

See also

CIM_EthernetPort
Networking Classes

 

 

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