Microsoft KB Archive/318374

= Quality of Service (QoS) Parameter Ignored in ATM Multipoint Connections =

Article ID: 318374

Article Last Modified on 10/30/2006

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server

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This article was previously published under Q318374



SYMPTOMS
If you try to configure a Constant Bit Rate (CBR) or Variable Bit Rate (VBR) Asynchronous Transfer Mode (ATM) multipoint link, all outgoing multipoint communications from the Windows 2000 Server computer ignore the Quality of Service (QoS) parameters, and instead connect with a best effort configuration.



CAUSE
This behavior occurs because of an error in the Windows code, which causes the Windows outgoing multipoint calls (the WSAJoinLeaf function) to ignore the configured QoS parameters.



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

The English-language version of this fix should have the following file attributes or later:   Date         Time   Version        Size    File name -  22-Mar-2002  03:02  5.0.2195.5201  10,000  Wshatm.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 3.

Additional query words: kbNetworking

Keywords: kbbug kbfix kbwin2000presp3fix kbqfe kbwin2000sp3fix kbnetwork kbhotfixserver KB318374

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