You have a computer that runs Windows Server
2008.
A network adapter that supports receive-side scaling (RSS)
is installed on the computer.
You enable receive-side scaling on the network
adapter.
In this scenario, receive-side scaling may be disabled
unexpectedly. Additionally, some TCP connections may be reset.
If you
use the netsh int tcp show global command to query for the receive-side
scaling status, you receive output that indicates that receive-side
scaling is disabled. This
output resembles the following:
Querying active state...
TCP Global Parameters
----------------------------------------------
Receive-Side Scaling State : disabled
Chimney Offload State : enabled
Receive Window Auto-Tuning Level : highlyrestricted
Add-On Congestion Control Provider : none
ECN Capability : disabled
RFC 1323 Timestamps : disabled
Notes
Receive-side scaling helps improve
network processing on computers that have multiple processors and high-speed
network adapters. Therefore,
this problem usually
may be seen
on computers that have 10-gigabit network adapters.
When
this problem occurs, you lose the increase
in network bandwidth that
results
from
receive-side scaling.
Important Windows Vista and Windows Server 2008 hotfixes are
included in the same packages. However, only one of these products may be
listed on the “Hotfix Request” page. To request the hotfix package that applies
to both Windows Vista and Windows Server 2008, just select the product that is
listed on the page.
A supported hotfix is
available from Microsoft. However, this hotfix is intended to correct only the
problem that is described in this article. Apply this hotfix only to systems
that are experiencing the problem described in this article. This hotfix might
receive additional testing. Therefore, if you are not severely affected by this
problem, we recommend that you wait for the next software update that contains
this hotfix.
If the hotfix is available for download, there is a
"Hotfix download available" section at the top of this Knowledge Base article.
If this section does not appear, contact Microsoft Customer Service and Support
to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required,
you might have to create a separate service request. The usual support costs
will apply to additional support questions and issues that do not qualify for
this specific hotfix. For a complete list of Microsoft Customer Service and
Support telephone numbers or to create a separate service request, visit the
following Microsoft Web site:
Note The "Hotfix download available" form displays the languages for
which the hotfix is available. If you do not see your language, it is because a
hotfix is not available for that language.
Prerequisites
No prerequisites are required.
Restart requirement
You must restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File information
The English version of this hotfix has the file
attributes (or later file attributes) that are listed in the following table.
The dates and times for these files are listed in Coordinated Universal Time
(UTC). When you view the file information, it is converted to local time. To
find the difference between UTC and local time, use the Time
Zone tab in the Date and Time item in Control
Panel.
Windows Server 2008 file information notes
The files that apply to a specific product, milestone (RTM,
SPn), and service branch (LDR, GDR) can be identified by examining the file
version numbers as shown in the following table.
Collapse this tableExpand this table
Version
Product
Milestone
Service branch
6.0.6000.16xxx
Windows
Vista
RTM
GDR
6.0.6000.20xxx
Windows
Vista
RTM
LDR
6.0.6001.18xxx
Windows Vista SP1 and
Windows Server 2008 SP1
SP1
GDR
6.0.6001.22xxx
Windows Vista SP1 and
Windows Server 2008 SP1
SP1
LDR
Service Pack 1 is integrated into Windows Server 2008.
The MANIFEST files (.manifest) and MUM files (.mum)
installed for each environment are listed separately. MUM and MANIFEST files, and
the associated security catalog (.cat) files, are critical to maintaining the
state of the updated component. The security catalog files (attributes not
listed) are signed with a Microsoft digital signature.
For all supported 32-bit versions of Windows Server 2008
Collapse this tableExpand this table
File name
File version
File
size
Date
Time
Platform
Netio.sys
6.0.6001.22302
221,448
05-Nov-2008
07:06
x86
Bfe.dll
6.0.6001.22302
328,704
04-Nov-2008
06:35
x86
Fwpkclnt.sys
6.0.6001.22302
99,592
05-Nov-2008
07:04
x86
Fwpuclnt.dll
6.0.6001.22302
595,456
04-Nov-2008
06:35
x86
Ikeext.dll
6.0.6001.22302
438,272
04-Nov-2008
06:35
x86
Wfp.mof
Not
Applicable
814
18-Dec-2007
21:11
Not
Applicable
Wfp.tmf
Not
Applicable
175,508
04-Nov-2008
04:31
Not
Applicable
Tcpip.sys
6.0.6001.22302
890,120
05-Nov-2008
07:10
x86
For all supported 64-bit versions of Windows Server 2008
Collapse this tableExpand this table
File name
File version
File
size
Date
Time
Platform
Netio.sys
6.0.6001.22302
343,816
05-Nov-2008
07:35
x64
Bfe.dll
6.0.6001.22302
458,240
04-Nov-2008
07:01
x64
Fwpkclnt.sys
6.0.6001.22302
166,664
05-Nov-2008
07:35
x64
Fwpuclnt.dll
6.0.6001.22302
779,776
04-Nov-2008
07:01
x64
Ikeext.dll
6.0.6001.22302
454,656
04-Nov-2008
07:01
x64
Wfp.mof
Not
Applicable
814
18-Dec-2007
21:10
Not
Applicable
Wfp.tmf
Not
Applicable
174,680
04-Nov-2008
05:02
Not
Applicable
Tcpip.sys
6.0.6001.22302
1,411,336
05-Nov-2008
07:40
x64
Fwpuclnt.dll
6.0.6001.22302
595,456
04-Nov-2008
06:35
x86
Wfp.mof
Not
Applicable
814
18-Dec-2007
21:11
Not
Applicable
For all supported Itanium-based versions of Windows Server 2008
For more information about receive-side scaling, refer to the "RSS_Server2008.docx" document. To download this document, visit the following Microsoft Web
site:
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