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Disable-NetAdapterSriov

Disable-NetAdapterSriov

msft_netadaptersriov.cdxml

Synopsis

Disables Single-Root I/O Virtualization (SR-IOV) on the network adapter.

Syntax

Disable-NetAdapterSriov [-Name] [-AsJob] [-CimSession] [-IncludeHidden] [-NoRestart] [-PassThru] [-ThrottleLimit] [-Confirm] [-WhatIf] [<CommonParameters>]

Disable-NetAdapterSriov [-AsJob] [-CimSession] [-NoRestart] [-PassThru] [-ThrottleLimit] [-InputObject] [-Confirm] [-WhatIf] [<CommonParameters>]

Disable-NetAdapterSriov [-AsJob] [-CimSession] [-IncludeHidden] [-NoRestart] [-PassThru] [-ThrottleLimit] [-InterfaceDescription] [-Confirm] [-WhatIf] [<CommonParameters>]

Detailed Description

The Disable-NetAdapterSriov cmdlet disables Single-Root I/O Virtualization (SR-IOV) on the network adapter. SR-IOV enables network traffic to bypass the software switch layer of the Hyper-V virtualization stack. As a result, the I/O overhead in the software emulation layer is reduced and can achieve network performance that is nearly the same performance as in non-virtualized environments.

This cmdlet prevents the adapter from using SR-IOV until enabled again. While SR-IOV is disabled, Windows Server® 2012 and later will not attempt to allocate a virtual function (VF) to a virtual machine (VM). If VFs from this network adapter are allocated to any VM, then the VFs are revoked and each VM interface reverted to the synthetic network path.

Parameters

-AsJob <SwitchParameter>

Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete. The cmdlet immediately returns an object that represents the job and then displays the command prompt. You can continue to work in the session while the job completes. To manage the job, use the *-Job cmdlets. To get the job results, use the Receive-Job cmdlet. For more information about Windows PowerShell® background jobs, see about_Jobs.

Aliases

None

Required?

false

Position

named

Default value

None

Accept pipeline input?

false

Accept wildcard characters?

false

-CimSession <CimSession[]>

Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.

Aliases

None

Required?

false

Position

named

Default value

None

Accept pipeline input?

false

Accept wildcard characters?

false

-IncludeHidden <SwitchParameter>

Specifies both visible and hidden network adapters should be included. By default only visible network adapters are included. If a wildcard character is used in identifying a network adapter and this parameter has been specified, then the wildcard string is matched against both hidden and visible network adapters.

Aliases

None

Required?

false

Position

named

Default value

None

Accept pipeline input?

false

Accept wildcard characters?

false

-InputObject <CimInstance[]>

Specifies the input to this cmdlet. You can use this parameter, or you can pipe the input to this cmdlet.

Aliases

None

Required?

true

Position

named

Default value

None

Accept pipeline input?

true (ByValue)

Accept wildcard characters?

false

-InterfaceDescription <String[]>

Specifies the network adapter interface description. For a physical network adapter this is typically the name of the vendor of the network adapter followed by a part number and description, such as Contoso 12345 Gigabit Network Device.

Aliases

ifDesc

Required?

true

Position

named

Default value

None

Accept pipeline input?

true (ByPropertyName)

Accept wildcard characters?

true

-Name <String[]>

Specifies the name of the network adapter.

Aliases

ifAlias, InterfaceAlias

Required?

true

Position

1

Default value

None

Accept pipeline input?

true (ByPropertyName)

Accept wildcard characters?

true

-NoRestart <SwitchParameter>

Specifies that the network adapter is not restarted as part of running this cmdlet. Note: Many advanced properties require restarting the network adapter before the new settings take effect.

Aliases

None

Required?

false

Position

named

Default value

None

Accept pipeline input?

false

Accept wildcard characters?

false

-PassThru <SwitchParameter>

Returns an object representing the item with which you are working. By default, this cmdlet does not generate any output.

Aliases

None

Required?

false

Position

named

Default value

None

Accept pipeline input?

false

Accept wildcard characters?

false

-ThrottleLimit <Int32>

Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0 is entered, then Windows PowerShell® calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.

Aliases

None

Required?

false

Position

named

Default value

None

Accept pipeline input?

false

Accept wildcard characters?

false

-Confirm <SwitchParameter>

Prompts you for confirmation before running the cmdlet.

Aliases

None

Required?

false

Position

named

Default value

false

Accept pipeline input?

false

Accept wildcard characters?

false

-WhatIf <SwitchParameter>

Shows what would happen if the cmdlet runs. The cmdlet is not run.

Aliases

None

Required?

false

Position

named

Default value

false

Accept pipeline input?

false

Accept wildcard characters?

false

Input Type

Microsoft.Management.Infrastructure.CimInstance#ROOT/StandardCimv2/MSFT_NetAdapterSriovSettingData[]

Return Type

Microsoft.Management.Infrastructure.CimInstance#ROOT/StandardCimv2/MSFT_NetAdapterSriovSettingData

Notes

None

Examples

EXAMPLE 1

This example disables SR-IOV on the network adapter named Ethernet 1 and restarts the network adapter.

PS C:\> Disable-NetAdapterSriov -Name "Ethernet 1"

EXAMPLE 2

This example gets a network adapter named Ethernet 3, and disables the network adapter before restarting the network adapter.

PS C:\>$netAdapter3 = Get-NetAdapter –Name "Ethernet 3"
Disable-NetAdapterSriov –InputObject $netAdapter3

A version of the cmdlet that uses the pipeline to select the network adapter named Ethernet 3 and pipes that object into this cmdlet.
PS C:\> Get-NetAdapter –Name "Ethernet 3" | Disable-NetAdapterSriov

EXAMPLE 3

This example disables SR-IOV on the network adapter named Ethernet 1 without restarting the network adapter.

PS C:\> Disable-NetAdapterSriov -Name "Ethernet 2" -NoRestart

Online Version
Enable-NetAdapterSriov
Get-NetAdapter
Get-NetAdapterSriov
Get-NetAdapterSriovVf
Get-NetAdapterSriov