powershell – Windows Server 2012 R2和TCP慢启动和Hyper-v主机

发布时间：2020-12-14 00:01:36 所属栏目：Windows 来源：网络整理

导读：我需要更改TCP InitialCongestionWindow的默认值我看了这个文件： https://www.iispeed.com/blog/windows-server-2012-and-tcp-slow-start 我在我们的hyper-v托管虚拟服务器2012 R2上尝试了它. PS C:Set-NetTCPSetting -SettingName Custom -InitialConges

我需要更改TCP InitialCongestionWindow的默认值

我看了这个文件：
https://www.iispeed.com/blog/windows-server-2012-and-tcp-slow-start

我在我们的hyper-v托管虚拟服务器2012 R2上尝试了它.

PS C:&;Set-NetTCPSetting -SettingName Custom -InitialCongestionWindow 10 -CongestionProvider CTCP

我收到了错误：

Set-NetTCPSetting : No MSFT_NetTCPSetting objects found with property 'SettingName' equal to 'Custom'.  Verify the valu
e of the property and retry.
At line:1 char:1
+ Set-NetTCPSetting -SettingName Custom -InitialCongestionWindow 10 -CongestionPro ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Custom:String) [Set-NetTCPSetting],CimJobException
    + FullyQualifiedErrorId : CmdletizationQuery_NotFound_SettingName,Set-NetTCPSetting

问题是如何才能完成IISspeed文档所说的内容？如果我在Hyper-v机器上更改此功能我是否还需要在hypers-v主机上更改此功能以实际上有所不同？

我是否应该对SSL端口443进行相同的更改？

我运行了这个命令：

PS C:UsersAdministrator> Get-NetTCPSetting


SettingName                   : Automatic
MinRto(ms)                    :
InitialCongestionWindow(MSS)  :
CongestionProvider            :
CwndRestart                   :
DelayedAckTimeout(ms)         :
DelayedAckFrequency           :
MemoryPressureProtection      :
AutoTuningLevelLocal          :
AutoTuningLevelGroupPolicy    :
AutoTuningLevelEffective      :
EcnCapability                 :
Timestamps                    :
InitialRto(ms)                :
ScalingHeuristics             :
DynamicPortRangeStartPort     :
DynamicPortRangeNumberOfPorts :
AutomaticUseCustom            :
NonSackRttResiliency          :
ForceWS                       :
MaxSynRetransmissions         :

SettingName                   : InternetCustom
MinRto(ms)                    : 300
InitialCongestionWindow(MSS)  : 4
CongestionProvider            : CTCP
CwndRestart                   : False
DelayedAckTimeout(ms)         : 50
DelayedAckFrequency           : 2
MemoryPressureProtection      : Enabled
AutoTuningLevelLocal          : Normal
AutoTuningLevelGroupPolicy    : NotConfigured
AutoTuningLevelEffective      : Local
EcnCapability                 : Enabled
Timestamps                    : Disabled
InitialRto(ms)                : 3000
ScalingHeuristics             : Disabled
DynamicPortRangeStartPort     : 49152
DynamicPortRangeNumberOfPorts : 16384
AutomaticUseCustom            : Disabled
NonSackRttResiliency          : Disabled
ForceWS                       : Disabled
MaxSynRetransmissions         : 2

SettingName                   : DatacenterCustom
MinRto(ms)                    : 20
InitialCongestionWindow(MSS)  : 4
CongestionProvider            : DCTCP
CwndRestart                   : True
DelayedAckTimeout(ms)         : 10
DelayedAckFrequency           : 2
MemoryPressureProtection      : Enabled
AutoTuningLevelLocal          : Normal
AutoTuningLevelGroupPolicy    : NotConfigured
AutoTuningLevelEffective      : Local
EcnCapability                 : Enabled
Timestamps                    : Disabled
InitialRto(ms)                : 3000
ScalingHeuristics             : Disabled
DynamicPortRangeStartPort     : 49152
DynamicPortRangeNumberOfPorts : 16384
AutomaticUseCustom            : Disabled
NonSackRttResiliency          : Disabled
ForceWS                       : Disabled
MaxSynRetransmissions         : 2

SettingName                   : Compat
MinRto(ms)                    : 300
InitialCongestionWindow(MSS)  : 2
CongestionProvider            : Default
CwndRestart                   : False
DelayedAckTimeout(ms)         : 200
DelayedAckFrequency           : 2
MemoryPressureProtection      : Enabled
AutoTuningLevelLocal          : Normal
AutoTuningLevelGroupPolicy    : NotConfigured
AutoTuningLevelEffective      : Local
EcnCapability                 : Enabled
Timestamps                    : Disabled
InitialRto(ms)                : 3000
ScalingHeuristics             : Disabled
DynamicPortRangeStartPort     : 49152
DynamicPortRangeNumberOfPorts : 16384
AutomaticUseCustom            : Disabled
NonSackRttResiliency          : Disabled
ForceWS                       : Disabled
MaxSynRetransmissions         : 2

SettingName                   : Datacenter
MinRto(ms)                    : 20
InitialCongestionWindow(MSS)  : 4
CongestionProvider            : DCTCP
CwndRestart                   : True
DelayedAckTimeout(ms)         : 10
DelayedAckFrequency           : 2
MemoryPressureProtection      : Enabled
AutoTuningLevelLocal          : Normal
AutoTuningLevelGroupPolicy    : NotConfigured
AutoTuningLevelEffective      : Local
EcnCapability                 : Enabled
Timestamps                    : Disabled
InitialRto(ms)                : 3000
ScalingHeuristics             : Disabled
DynamicPortRangeStartPort     : 49152
DynamicPortRangeNumberOfPorts : 16384
AutomaticUseCustom            : Disabled
NonSackRttResiliency          : Disabled
ForceWS                       : Disabled
MaxSynRetransmissions         : 2

SettingName                   : Internet
MinRto(ms)                    : 300
InitialCongestionWindow(MSS)  : 4
CongestionProvider            : CTCP
CwndRestart                   : False
DelayedAckTimeout(ms)         : 50
DelayedAckFrequency           : 2
MemoryPressureProtection      : Enabled
AutoTuningLevelLocal          : Normal
AutoTuningLevelGroupPolicy    : NotConfigured
AutoTuningLevelEffective      : Local
EcnCapability                 : Enabled
Timestamps                    : Disabled
InitialRto(ms)                : 3000
ScalingHeuristics             : Disabled
DynamicPortRangeStartPort     : 49152
DynamicPortRangeNumberOfPorts : 16384
AutomaticUseCustom            : Disabled
NonSackRttResiliency          : Disabled
ForceWS                       : Disabled
MaxSynRetransmissions         : 2

您需要首先创建传输过滤器,它将TCP设置指定为NetTcpSetting对象,如下例所示.

New-NetTransportFilter -SettingName Custom -LocalPortStart 80 -LocalPortEnd 80 -RemotePortStart 0 -RemotePortEnd 65535

当您要修改设置时,将使用Set-NetTCPSetting命令行开关.因此,为什么您收到有关未找到的自定义对象的错误.创建传输过滤器后,您的原始命令可以修改设置.

Set-NetTCPSetting -SettingName Custom -InitialCongestionWindow 10 -CongestionProvider CTCP

（编辑：李大同）

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