Differences Between "Bytes Sent/Sec" and "Bytes Received/Sec" Counters

Symptoms

When you measure the performance of the computers in your environment, you might find that the "Bytes Sent/sec" counter for the Network Interface object is off by a magnitude of 8 to 10 from the "Bytes Received/sec" counter when the same amount of data is exchanged in both directions.

There are other counters that measure network throughput, such as the "Bytes Transmitted/sec" and "Bytes Received/sec" Server object counters. These should be in the same range as the Network Interface counters.


Currently, this problem has only been seen in a mixed Fast Ethernet and Gigabit Ethernet environment.

Cause

Some network adapter drivers do not set all of the fields in the packet information correctly. In this case, a member of this structure does not have the right information; therefore, incorrect results are reported by Address Resolution Protocol (ARP). With this hotfix, ARP uses a field that is required to have the correct information.

Resolution

To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack

Windows 2000

The English version of this fix should have the following file attributes or later:


Date Time Version Size File name
---------------------------------------------------------
12/05/2000 06:51a 5.0.2195.2778 123,184 Afd.sys
12/05/2000 06:51a 5.0.2195.2779 107,280 Msafd.dll
12/05/2000 06:51a 5.0.2195.2785 323,088 Tcpip.sys
12/05/2000 06:51a 5.0.2195.2772 16,240 Tdi.sys
12/05/2000 06:51a 5.0.2195.2104 17,680 Wshtcpip.dll

Windows NT 4.0

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:


Date Time Version Size File name Platform
---------------------------------------------------------------
07/31/2000 05:05p 4.0.1381.7086 174,640 Tcpip.sys Intel
07/31/2000 05:04p 4.0.1381.7086 308,688 Tcpip.sys Alpha

Status

Windows 2000

Microsoft has confirmed that this is a problem in Windows 2000. This problem was first corrected in Windows 2000 Service Pack 2.

Windows NT 4.0

Microsoft has confirmed that this is a problem in Windows NT 4.0.

More Information

For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes
Eigenschaften

Artikelnummer: 269738 – Letzte Überarbeitung: 20.02.2007 – Revision: 1

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