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Support Information:
Considerations for Using Scalable Networking Pack (SNP)
– Supplement –
Published: September 29, 2014
Enabling SNP
You can enable SNP by the following methods. Those differ depending on the operating systems. To enable
these features, you must change the network adapter settings to "enabled" according to the
operating system settings.
[Important]
The methods include how to change the registry, but changing the registry incorrectly may cause a
critical problem. Pay enough attention when you edit the registry. NEC recommends preparing some
countermeasures for possible troubles such as making a backup of the registry before editing it just in
case. Please note that all manipulation of the registry must be done at your own risk.
Windows Server 2003 Family
SNP is enabled by editing the registry.
[Applicable Operating Systems]
Windows Server 2003
Windows Server 2003 R2
Windows Storage Server 2003
Windows Storage Server 2003 R2
[Procedure]
Open the Registry Editor and set the following registry values to "1." If the
registries cannot be found, create them and set the values to "1" in like manner.
SNP is enabled by editing a registry and executing the netsh command.
[Applicable Operating Systems]
Windows Server 2008
Windows Vista
Windows Storage 2008 R2
Windows 7
[Procedure]
Open the Registry Editor and set the following registry value to "1." If the registry
cannot be found, create it and set the value to "1" in like manner.
Apply the hotfix provided in [Article ID: 967224] (*1) before executing the netsh command. (This
is not required for Windows Server 2008 R2 and Windows 7.)
Open the Command Prompt and set the following settings using the netsh command.
netsh int tcp set global chimney=enabled netsh int tcp set global rss=enabled
Restart the operating system.
Windows Server 2012 / Windows Server 2016 Family
SNP is enabled by executing the netsh command.
[Applicable Operating Systems]
Windows Server 2012
Windows 8
Windows Server 2012 R2
Windows 8.1
Windows Server 2016
Windows 10
[Procedure]
Open the Command Prompt and execute the netsh command as follows.
netsh int tcp set global rss=enabled netsh int tcp set global chimney=enabled
Restart the operating system.
(*1)About Hotfix provided in [Article ID:
967224]
Executing the netsh command on Windows Server 2008 or Window Vista can cause the issue shown in
[Article ID: 967224]. As the netsh command is used for disabling/enabling SNP, apply the hotfix
provided in [Article ID: 967224] beforehand.
As for Windows Vista, the hotfix is applicable to Service Pack1 and later. If any service pack
has not been applied to the operating system, apply Service Pack1 before installing the hotfix.
The product name for this hotfix is shown as "Windows Vista," but it is also
applicable to Windows Server 2008.
As the issue shown in [Article ID: 967224] does not occur on Windows Server 2008 R2 or Windows
7, the hotfix is not needed for these operating systems.
[Article ID: 967224]
Some TCP/IP parameters in the registry are changed to incorrect values when you use the netsh command to
change TCP/IP global parameters on a computer that is running Windows Server 2008 or Windows Vista.
https://support.microsoft.com/kb/967224
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