Enable-NetQosFlowControl
Enables link level flow control based on the IEEE 802.1p priority.
Syntax
Enable-NetQosFlowControl
[[-Priority] <Byte[]>]
[[-InterfaceAlias] <String>]
[-PassThru]
[-CimSession <CimSession[]>]
[-ThrottleLimit <Int32>]
[-AsJob]
[-WhatIf]
[-Confirm]
[<CommonParameters>] Enable-NetQosFlowControl
[[-Priority] <Byte[]>]
[[-InterfaceIndex] <UInt32>]
[-PassThru]
[-CimSession <CimSession[]>]
[-ThrottleLimit <Int32>]
[-AsJob]
[-WhatIf]
[-Confirm]
[<CommonParameters>] Enable-NetQosFlowControl
-InputObject <CimInstance[]>
[-PassThru]
[-CimSession <CimSession[]>]
[-ThrottleLimit <Int32>]
[-AsJob]
[-WhatIf]
[-Confirm]
[<CommonParameters>] Description
The Enable-NetQosFlowControl cmdlet enables priority-based flow control (PFC) in Windows Server® 2012 and later. PFC is part of the IEEE data center bridging (DCB) standard. If Windows Server 2012 or later is configured to be not willing to accept configurations from a remote device, Windows Server 2012 or later programs DCB capable NICs, which enables PFC at the link level.
For more information about remote device configurations, see the Set-NetQosDcbxSetting cmdlet.
Enabling flow control on both ends of a link reduces the chance of packet loss because of link congestion. Some upper layer protocol even assumes a lossless underlying protocol. In such case, make sure that you enable flow control. PFC makes it possible to enable flow control just for one type of traffic, denoted by the IEEE 802.1p priority. It is very important to have consistent PFC settings on both ends of the link. A mis-matched configuration is equivalent to not having flow control at all.
Examples
Example 1: Enable flow control for traffic by priority
PS C:\> Enable-NetQosFlowControl -Priority 3,6This command enables flow control on traffic tagged with priority 3 and priority 6.
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 |
-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 |
-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 |
-InterfaceAlias
| Type: | String |
| Aliases: | IfAlias |
| Position: | 1 |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-InterfaceIndex
| Type: | UInt32 |
| Aliases: | IfIndex |
| Position: | 1 |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-PassThru
| Type: | SwitchParameter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Priority
| Type: | Byte[] |
| Position: | 0 |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-ThrottleLimit
| 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 |