Msvm_SwitchPort class

Article
05/31/2018

Represents a port on the switch.

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

Syntax

[Dynamic, Provider("VmmsWmiInstanceAndMethodProvider"), AMENDMENT]
class Msvm_SwitchPort : CIM_SwitchPort
{
  string   Caption = "Switch Port";
  string   ElementName;
  datetime InstallDate;
  uint16   HealthState = 5;
  string   OtherEnabledState;
  uint16   RequestedState = 12;
  string   SystemCreationClassName = "Msvm_VirtualSwitch";
  string   SystemName;
  string   CreationClassName = "Msvm_SwitchPort";
  string   Description = "Microsoft Virtual Switch Port";
  uint16   OperationalStatus[] = 2;
  uint16   EnabledState = 5;
  datetime TimeOfLastStateChange;
  uint16   ProtocolType;
  uint16   ProtocolIFType = 1;
  uint16   PortNumber;
  String   StatusDescriptions[] = "OK";
  uint16   EnabledDefault = 2;
  String   Name;
  String   NameFormat;
  String   OtherTypeDescription = "Virtual Ethernet";
  boolean  BroadcastResetSupported = FALSE;
  string   ScopeOfResidence;
  string   Status;
  uint32   VMQOffloadWeight = 100;
  string   AllowedIPv6Addresses[];
  string   AllowedIPv4Addresses[];
  boolean  PreventIPSpoofing;
  uint32   ChimneyOffloadWeight = 0;
  uint32   VMQOffloadUsage;
  uint32   ChimneyOffloadUsage;
  uint32   VMQOffloadLimit;
  uint32   ChimneyOffloadLimit;
  boolean  AllowMacSpoofing;
};

Members

The Msvm_SwitchPort class has these types of members:

Methods
Properties

Methods

The Msvm_SwitchPort class has these methods.

Method	Description
BroadcastReset	This method is not supported.
RequestStateChange	This method is not supported.

Properties

The Msvm_SwitchPort class has these properties.

AllowedIPv4Addresses

Data type: string array
Access type: Read/write

The list of IPv4 addresses which are valid in ARP and neighbor Discovery packets.

Each address in the list must point a text string of an IPv4 address in dotted-decimal notation as in "192.168.16.0", an example of an IPv4 address in dotted-decimalnotation.

AllowedIPv6Addresses

Data type: string array
Access type: Read/write

The list of IPv6 addresses which are valid in ARP and neighbor Discovery packets.The basic string representation consists of 8 hexadecimal numbers separated by colons.A string of consecutive zero numbers may be replaced with a double-colon.There can only be one double-colon in the string representation of the IPv6 address.The last 32 bits may be represented in IPv4-style dotted-octet notationif the address is a IPv4-compatible address.

AllowMacSpoofing

Data type: boolean
Access type: Read/write

Indicates whether the port will allow MAC spoofing.

Value	Meaning
TRUE	The port will allow MAC addresses to be spoofed. All valid unicast MAC address values are allowed except those of ports with the AllowMacSpoofing property set to FALSE.
FALSE	The port will allow only MAC addresses configured within Hyper-V management to be used.

Windows Server 2008: The AllowMacSpoofing property is not supported until Windows Server 2008 R2.

BroadcastResetSupported

Data type: boolean
Access type: Read-only
Qualifiers: Experimental, MappingStrings ("FC-SWAPI.INCITS-T11|SWAPI_PORT_CONFIG_CAPS_T.PortForceLipSupported"), ModelCorrespondence ("CIM_ProtocolEndpoint.BroadcastReset")

Indicates whether the instrumentation supports the BroadcastReset method. This property is inherited from CIM_SwitchPort and is always set to FALSE.

Caption

Data type: string
Access type: Read-only
Qualifiers: MaxLen (64)

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

ChimneyOffloadLimit

Data type: uint32
Access type: Read/write

The current TCP Chimney Offloading resources limit on this port. The limit is the maximum usage of TCP Chimney Offloading resources on the port.

Windows Server 2008: The ChimneyOffloadLimit property is not supported until Windows Server 2008 R2.

ChimneyOffloadUsage

Data type: uint32
Access type: Read/write

The current TCP Chimney Offloading usage on this port. The usage is the amount of TCP Chimney Offloading resources in use on the port.

Windows Server 2008: The ChimneyOffloadUsage property is not supported until Windows Server 2008 R2.

ChimneyOffloadWeight

Data type: uint32
Access type: Read/write

The weight assigned to this port for TCP Chimney Offloading. The weight is the relative importance when assigning TCP Chimney Offloading resources. Setting the ChimneyOffloadWeight property to 0 disables TCP Chimney Offloading on the port. The default is 0.

Windows Server 2008: The ChimneyOffloadWeight property is not supported until Windows Server 2008 R2.

CreationClassName

Data type: string
Access type: Read-only
Qualifiers: Key, MaxLen (256)

The name of the class or the subclass used in the creation of an instance. This property is inherited from CIM_ServiceAccessPoint and is always set to "Msvm_SwitchPort".

Description

Data type: string
Access type: Read-only
Qualifiers: MappingStrings ("MIB.IETF|IF-MIB.ifDescr")

A textual description of the object. This property is inherited from CIM_ProtocolEndpoint and is always set to "Microsoft Virtual Switch Port".

ElementName

Data type: string
Access type: Read-only

A user-friendly name for the object. This property is inherited from CIM_ManagedElement.

EnabledDefault

Data type: uint16
Access type: Read/write

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
Qualifiers: MappingStrings ("MIB.IETF|IF-MIB.ifAdminStatus")

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

Not Applicable (5)

The element does not support being enabled or disabled.

HealthState

Data type: uint16
Access type: Read-only

The current health of the element. This property is inherited from CIM_ManagedSystemElement and is always set to 5 (OK).

OK (5)

The element is fully functional and operates within normal operational parameters and without error.

InstallDate

Data type: datetime
Access type: Read-only
Qualifiers: MappingStrings ("MIF.DMTF|ComponentID|001.5")

A datetime value that indicates when the object was installed. This property is inherited from CIM_ManagedSystemElement and is not used.

Name

Data type: String
Access type: Read-only
Qualifiers: MaxLen (256)

A string that identifies this protocol endpoint with either a port or an interface on a device. This property is inherited from CIM_ProtocolEndpoint.

NameFormat

Data type: String
Access type: Read-only
Qualifiers: MaxLen (256)

The naming heuristic that is selected to ensure that the value of the Name property is unique. This property is inherited from CIM_ProtocolEndpoint and is not used.

OperationalStatus

Data type: uint16 array
Access type: Read-only
Qualifiers: MappingStrings ("MIB.IETF|IF-MIB.ifOperStatus")

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

OK (2)

Full functionality without errors.

OtherEnabledState

Data type: string
Access type: Read-only
Qualifiers: ModelCorrespondence ("CIM_EnabledLogicalElement.EnabledState")

The enabled or disabled state of the element when the EnabledState property is set to 1 ("Other"). This property is inherited from CIM_EnabledLogicalElement and is not used.

OtherTypeDescription

Data type: String
Access type: Read-only
Qualifiers: MaxLen (64), ModelCorrespondence ("CIM_ProtocolEndpoint.ProtocolType", "CIM_ProtocolEndpoint.ProtocolIFType")

A string that describes the type of protocol endpoint when the Type property of this class (or any of its subclasses) is set to 1 ("Other"). This property is inherited from CIM_ProtocolEndpoint and is always set to "Virtual Ethernet".

PortNumber

Data type: uint16
Access type: Read-only
Qualifiers: MappingStrings ("MIB.IETF|BRIDGE-MIB.dot1dPort")

The numeric identifier for a switch port. This property is inherited from CIM_SwitchPort but it is not used.

PreventIPSpoofing

Data type: boolean
Access type: Read/write

Indicates whether the IP spoofing prevention is enabled on the port.

TRUE: IP Spoofing checks will be enabled on ARP and Neighbor Discoverypackets. Router Advertisements and Router redirects will be blocked from the port

FALSE: No IP spoofing checks will be performed.

ProtocolIFType

Data type: uint16
Access type: Read-only
Qualifiers: MappingStrings ("MIB.IETF|IF-MIB.ifType"), ModelCorrespondence ("CIM_ProtocolEndpoint.OtherTypeDescription")

The IANA ifType MIB. This property is inherited from CIM_ProtocolEndpoint and is always set to 1 (Other).

ProtocolType

Data type: uint16
Access type: Read-only
Qualifiers: Deprecated ("CIM_ProtocolEndpoint.ProtocolIFType"), ModelCorrespondence ("CIM_ProtocolEndpoint.OtherTypeDescription")

Information to categorize and classify different instances of this class. This property is inherited from CIM_ProtocolEndpoint and is not used.

RequestedState

Data type: uint16
Access type: Read-only
Qualifiers: ModelCorrespondence ("CIM_EnabledLogicalElement.EnabledState")

The last requested or desired state for the management service. This property is inherited from CIM_EnabledLogicalElement and is always set to 12 (Not Applicable).

Not Applicable (12)

Indicates that this instance does not support the RequestedState property.

ScopeOfResidence

Data type: string
Access type: Read/write

The AzMan scope for the switch service. This scope will be used when performing access checks for the switch service.

Status

Data type: string
Access type: Read-only
Qualifiers: Override (Status)

The current status of the object. Operational and non-operational status can be defined. Operational status can include "OK", "Degraded", and "Pred Fail". "Pred Fail" indicates whether an element is functioning properly, but is predicting a failure (for example, a SMART-enabled hard disk drive).

Non-operational status can include "Error", "Starting", "Stopping", and "Service". "Service" can apply during disk mirror-resilvering, reloading a user permissions list, or other administrative work. Not all such work is online, but the managed element is neither "OK" nor in one of the other states.

This property is inherited from CIM_ManagedSystemElement

StatusDescriptions

Data type: String array
Access type: Read-only
Qualifiers: ArrayType ("Indexed"), ModelCorrespondence ("CIM_ManagedSystemElement.OperationalStatus")

Strings that describe the various OperationalStatus array values. This property is inherited from CIM_ManagedSystemElement and is always set to "OK".

SystemCreationClassName

Data type: string
Access type: Read-only
Qualifiers: Key, Propagated ("CIM_System.CreationClassName"), MaxLen (256)

The creation class name of the scoping system. This property is inherited from CIM_ServiceAccessPoint and is always set to "Msvm_VirtualSwitch".

SystemName

Data type: string
Access type: Read-only
Qualifiers: Key, Propagated ("CIM_System.Name"), MaxLen (256)

The system name of the scoping system. This property is inherited from CIM_ServiceAccessPoint.

TimeOfLastStateChange

Data type: datetime
Access type: Read-only
Qualifiers: MappingStrings ("MIB.IETF|IF-MIB.ifLastChange")

The date or time when the enabled state of the element last changed. This property is inherited from CIM_ProtocolEndpoint and is not used.

VMQOffloadLimit

Data type: uint32
Access type: Read/write

The current VMQ offloading limit on this port. The limit is the maximum usage of VMQ offloading resources on the port.

Windows Server 2008: The VMQOffloadLimit property is not supported until Windows Server 2008 R2.

VMQOffloadUsage

Data type: uint32
Access type: Read/write

The current VMQ offloading usage on this port. The usage is the amount of VMQ resources in use on the port.

Windows Server 2008: The VMQOffloadUsage property is not supported until Windows Server 2008 R2.

VMQOffloadWeight

Data type: uint32
Access type: Read/write

The weight assigned to this port for virtual machine queue (VMQ) offloading. The weight is the relative importance when assigning VMQ resources. Setting the VMQOffloadWeight property to 0 disables VMQ on the port. The default is 100.

Value	Meaning
0	Disables VMQ on the port.
100	Default value.

Windows Server 2008: The VMQOffloadWeight property is not supported until Windows Server 2008 R2.

Remarks

Access to the Msvm_SwitchPort 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 R2
Namespace	Root\Virtualization
MOF	WindowsVirtualization.mof