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New-NetQosTrafficClass

Windows Server 2012 R2 and Windows 8.1

Updated: October 17, 2013

Applies To: Windows 8.1, Windows PowerShell 4.0, Windows Server 2012 R2

New-NetQosTrafficClass

Creates a new traffic class.

Syntax

Parameter Set: cim:CreateInstance0
New-NetQosTrafficClass [-Name] <String> [-Algorithm] <Algorithm> [-Priority] <Byte[]> [-AsJob] [-BandwidthPercentage <Byte> ] [-CimSession <CimSession[]> ] [-ThrottleLimit <Int32> ] [-Confirm] [-WhatIf] [ <CommonParameters>]




Detailed Description

This New-NetQosTrafficClass cmdlet creates a new traffic class. Traffic class is specified in the enhanced transmission selection (ETS) specification in the IEEE data center bridging (DCB) standard. In creating a traffic class, the user specifies which types of traffic, differentiated by the IEEE 802.1p priority, are mapped to the traffic class, what transmission algorithm it uses, and how much bandwidth it gets. If Windows Server® 2012 or later is set to be not willing to accept DCB configurations from a remote device, then Windows Server 2012 or later will program DCB capable network adapters to add this new traffic class.

For more information on remote device configurations, see the Set-NetQosDcbxSetting cmdlet.

There is a default traffic class created by Windows Server 2012 or later. All 8 priorities are mapped to this default traffic class, which selects ETS as its transmission algorithm and has all of the total bandwidth. Users cannot delete the default traffic class. Since a traffic class must have at least one type of traffic mapped to it and there are 8 or less types of such traffic, which is limited by IEEE 802.1p, only 7 additional traffic classes can be created.

In reality, a network adapter that supports DCB may support less than 8 traffic classes. If there are more traffic classes configured in Windows Server 2012 or later than what a network adapter can support, then Windows Server 2012 or later will not send the configurations to the network adapter.

Parameters

-Algorithm<Algorithm>

Specifies the transmission selection algorithm to assign to the traffic class. The acceptable values for this parameter are: ETS or Strict
ETS refers to IEEE 802.1Qaz Enhanced Transmission Selection. Strict refers to Strict Priority scheduling. Both of the algorithms are specified in the IEEE 802.1Q standard.


Aliases

tsa

Required?

true

Position?

2

Default Value

ets

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-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.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-BandwidthPercentage<Byte>

Specifies the percent of total bandwidth to assign to the traffic class.


Aliases

Bandwidth,bw

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

Session

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Name<String>

Specifies the name of the traffic class.


Aliases

none

Required?

true

Position?

1

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Priority<Byte[]>

Specifies the IEEE 802.1p priority values. One priority can be mapped to only one traffic class whereas multiple priorities can be mapped to the same traffic class.


Aliases

p,pri

Required?

true

Position?

3

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

Prompts you for confirmation before running the cmdlet.


Required?

false

Position?

named

Default Value

false

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-WhatIf

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


Required?

false

Position?

named

Default Value

false

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

<CommonParameters>

This cmdlet supports the common parameters: -Verbose, -Debug, -ErrorAction, -ErrorVariable, -OutBuffer, and -OutVariable. For more information, see    about_CommonParameters.

Inputs

The input type is the type of the objects that you can pipe to the cmdlet.

  • None

Outputs

The output type is the type of the objects that the cmdlet emits.

  • Microsoft.Management.Infrastructure.CimInstance#ROOT/StandardCimv2/MSFT_NetQosTrafficClassSettingData

    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.
    The MSFT_NetQosTrafficClassSettingData object contains a network traffic class.


Examples

EXAMPLE 1

Create a traffic class for traffic tagged with the 802.1p value of 3. This traffic class, named as SMB, has 60 percent of the entire bandwidth.


PS C:\> New-NetQosTrafficClass –Name "SMB" -Priority 3 -Algorithm ETS -BandwidthPercentage 60
Name                      Algorithm Bandwidth(%) Priority 
----                      --------- ------------ -------- 
SMB                       ETS       60           3 

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