Disable-NetAdapterChecksumOffload

Disables the selected checksum offloads on the network adapter.

Syntax

Disable-NetAdapterChecksumOffload
       [-Name] <String[]>
       [-AsJob]
       [-CimSession <CimSession[]>]
       [-IncludeHidden]
       [-IpIPv4]
       [-NoRestart]
       [-PassThru]
       [-TcpIPv4]
       [-TcpIPv6]
       [-ThrottleLimit <Int32>]
       [-UdpIPv4]
       [-UdpIPv6]
       [-Confirm]
       [-WhatIf]
Disable-NetAdapterChecksumOffload
       [-AsJob]
       [-CimSession <CimSession[]>]
       [-IpIPv4]
       [-NoRestart]
       [-PassThru]
       [-TcpIPv4]
       [-TcpIPv6]
       [-ThrottleLimit <Int32>]
       [-UdpIPv4]
       [-UdpIPv6]
       -InputObject <CimInstance[]>
       [-Confirm]
       [-WhatIf]
Disable-NetAdapterChecksumOffload
       [-AsJob]
       [-CimSession <CimSession[]>]
       [-IncludeHidden]
       [-IpIPv4]
       [-NoRestart]
       [-PassThru]
       [-TcpIPv4]
       [-TcpIPv6]
       [-ThrottleLimit <Int32>]
       [-UdpIPv4]
       [-UdpIPv6]
       -InterfaceDescription <String[]>
       [-Confirm]
       [-WhatIf]

Description

The Disable-NetAdapterChecksumOffload cmdlet disables the selected checksum offloads on the network adapter. When specified, IPv4, TCPv4, and TCPv6 checksums can be disabled. If none of these parameters are passed into this cmdlet, then by default all of the checksums for this adapter are disabled. Physical network adapters have various checksum offloads in which the checksum calculations occur in the network adapter and not in the main processor. This reduces processor utilization and can increase network throughput. This cmdlet disables the various checksum offload settings, including IPv4, TCPv4, TCPv6, UDPv4, and UDPv6. Note: Disabling checksum offload will also disable other stateless offloading including Receive Side Scaling (RSS), Receive Segment Coalescing (RSC) and Large Send Offload (LSO).

Examples

EXAMPLE 1

PS C:\>Disable-NetAdapterChecksumOffload -Name * -TcpIPv6

This example disables TCP/IPv6 checksum offload on all network adapters and restarts the network adapters.

Required Parameters

-InputObject

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

Type:CimInstance[]
Position:Named
Default value:None
Accept pipeline input:True (ByValue)
Accept wildcard characters:False
-InterfaceDescription

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.

Type:String[]
Aliases:ifDesc
Position:Named
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:True
-Name

Specifies the name of the network adapter.

Type:String[]
Aliases:ifAlias, InterfaceAlias
Position:1
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:True

Optional Parameters

-AsJob

ps_cimcommon_asjob

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-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-CimSessionhttp://go.microsoft.com/fwlink/p/?LinkId=227967 or Get-CimSessionhttp://go.microsoft.com/fwlink/p/?LinkId=227966 cmdlet. The default is the current session on the local computer.

Type:CimSession[]
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-Confirm

Prompts you for confirmation before running the cmdlet.

Type:SwitchParameter
Position:Named
Default value:False
Accept pipeline input:False
Accept wildcard characters:False
-IncludeHidden

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.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-IpIPv4

Specifies that IPv4 checksum offloading is Disabled.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-NoRestart

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.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-PassThru

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

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-TcpIPv4

Specifies that TCP IPv4 checksum offloading is Disabled.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-TcpIPv6

Specifies that TCP IPv6 checksum offloading is Disabled.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-ThrottleLimit

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.

Type:Int32
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-UdpIPv4

Specifies that UDP IPv4 checksum offloading is Disabled.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-UdpIPv6

Specifies that UDP IPv6 checksum offloading is Disabled.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-WhatIf

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

Type:SwitchParameter
Position:Named
Default value:False
Accept pipeline input:False
Accept wildcard characters:False

Inputs

Microsoft.Management.Infrastructure.CimInstance#ROOT/StandardCimv2/MSFT_NetAdapter ChecksumOffloadSettingData[]

The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects. The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.

Outputs

Microsoft.Management.Infrastructure.CimInstance#ROOT/StandardCimv2/MSFT_NetAdapter ChecksumOffloadSettingData

The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects. The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.