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Set-NetAdapterRss

Sets the RSS properties on a network adapter.

Syntax

Set-NetAdapterRss
   [-Name] <String[]>
   [-IncludeHidden]
   [-NumberOfReceiveQueues <UInt32>]
   [-Profile <Profile>]
   [-BaseProcessorGroup <UInt16>]
   [-BaseProcessorNumber <Byte>]
   [-MaxProcessorGroup <UInt16>]
   [-MaxProcessorNumber <Byte>]
   [-MaxProcessors <UInt32>]
   [-NumaNode <UInt16>]
   [-Enabled <Boolean>]
   [-NoRestart]
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-PassThru]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-NetAdapterRss
   -InterfaceDescription <String[]>
   [-IncludeHidden]
   [-NumberOfReceiveQueues <UInt32>]
   [-Profile <Profile>]
   [-BaseProcessorGroup <UInt16>]
   [-BaseProcessorNumber <Byte>]
   [-MaxProcessorGroup <UInt16>]
   [-MaxProcessorNumber <Byte>]
   [-MaxProcessors <UInt32>]
   [-NumaNode <UInt16>]
   [-Enabled <Boolean>]
   [-NoRestart]
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-PassThru]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]
Set-NetAdapterRss
   -InputObject <CimInstance[]>
   [-NumberOfReceiveQueues <UInt32>]
   [-Profile <Profile>]
   [-BaseProcessorGroup <UInt16>]
   [-BaseProcessorNumber <Byte>]
   [-MaxProcessorGroup <UInt16>]
   [-MaxProcessorNumber <Byte>]
   [-MaxProcessors <UInt32>]
   [-NumaNode <UInt16>]
   [-Enabled <Boolean>]
   [-NoRestart]
   [-CimSession <CimSession[]>]
   [-ThrottleLimit <Int32>]
   [-AsJob]
   [-PassThru]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]

Description

The Set-NetAdapterRss cmdlet sets the receive side scaling (RSS) properties on a network adapter. RSS is a scalability technology that distributes the receive network traffic among multiple processors by hashing the header of the incoming packet. If RSS is disabled, network traffic is processed on a single processor core. This may impact network performance as the processor utilization increases. Many properties can be configured using the parameters to optimize the performance of RSS. The selection of the processors to use for RSS is an important aspect of load balancing. Most of the parameters for this cmdlet help to determine the processors used by RSS. A thorough understanding of RSS is recommended before modifying individual parameters. Selecting the correct profile should be sufficient in most scenarios.

Examples

Example 1: Set an RSS profile for a NUMA server without dynamic load balancing

PS C:\> Set-NetAdapterRss -Name "Ethernet" -Profile NUMAStatic

This command sets an RSS profile for a NUMA server without dynamic load balancing on the network adapter named Ethernet.

Parameters

-AsJob

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.

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

-BaseProcessorGroup

Specifies the base processor group of a non-uniform memory access (NUMA) node. This impacts the processor array used by RSS. This parameter is the lowest group number of any processors that appear in the processor array.

Type:UInt16
Aliases:BaseG
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-BaseProcessorNumber

Specifies the base processor number of a NUMA node. This parameter is the lowest processor number of any processors from the BaseProcessorGroup parameter that appear in the processor array. This allows for partitioning processors across network adapters.

Type:Byte
Aliases:BaseN
Position:Named
Default value:None
Required:False
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-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.

Type:CimSession[]
Aliases:Session
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Confirm

Prompts you for confirmation before running the cmdlet.

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

-Enabled

Indicates whether RSS on an interface is enabled.

Type:Boolean
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-IncludeHidden

Indicates that the cmdlet includes both visible and hidden network adapters in the operation. 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
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-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
Required:True
Accept pipeline input:True
Accept wildcard characters:False

-InterfaceDescription

Specifies an array of network adapter interface descriptions. 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, InstanceID
Position:Named
Default value:None
Required:True
Accept pipeline input:True
Accept wildcard characters:False

-MaxProcessorGroup

Specifies the maximum processor group of a NUMA node. This parameter is the highest group number of any processors that appear in the processor array for this network adapter.

Type:UInt16
Aliases:MaxG
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-MaxProcessorNumber

Specifies the maximum processor number of a NUMA node. This parameter is the highest processor number of any processors from the MaxProcessorGroup parameter that appear in the processor array for this network adapter.

Type:Byte
Aliases:MaxN
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-MaxProcessors

Specifies the maximum number of processors to be used concurrently by RSS from the processor array for load balancing network transmissions from a single network adapter.

Type:UInt32
Aliases:Max
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Name

Specifies an array of network adapter names.

Type:String[]
Aliases:ifAlias, InterfaceAlias
Position:0
Default value:None
Required:True
Accept pipeline input:True
Accept wildcard characters:False

-NoRestart

Indicates that the cmdlet does not restart the network adapter after completing the operation. Many advanced properties require restarting the network adapter before the new settings take effect.

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

-NumaNode

Specifies the NUMA node affinity for a network adapter. This ensures that a given network transmission is load balanced by RSS within the NUMA node. This affects the memory allocation and also impacts the preference and ordering of the processors in the processor array. It does not affect the set of processors contained in the array, but it may impact the subset of the array that RSS actually uses.

Type:UInt16
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-NumberOfReceiveQueues

Specifies the number of receive queues per network adapter that is to be used by the interface

Type:UInt32
Position:Named
Default value:None
Required:False
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
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Profile

Specifies the RSS profile.

The acceptable values for this parameter are:

  • Closest: Behavior is consistent with the behavior of Windows Server® 2008 R2.
  • ClosestStatic: No dynamic load balancing, such as distributing but not load balancing at runtime.
  • NUMA: Assigns RSS processors in a round robin basis across every NUMA node to enable applications that are running on NUMA servers to scale well.
  • NUMAStatic: Default behavior. RSS processor selection is the same as for NUMA scalability without dynamic load balancing.
  • Conservative: RSS uses as few processors as possible to sustain the load. This option helps reduce the number of interrupts.
Type:Profile
Accepted values:Closest, ClosestStatic, NUMA, NUMAStatic, Conservative
Position:Named
Default value:None
Required:False
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
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-WhatIf

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

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

Inputs

CimInstance[]

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

CimInstance

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.