Windows Server 2003 may send PGM NAK packets to the original packet sender instead of to the PGM router (872786)


The information in this article applies to:

  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Datacenter Edition
  • Microsoft Windows Server 2003, Enterprise Edition
  • Microsoft Windows Server 2003, Standard Edition
  • Microsoft Windows Server 2003, Web Edition

SYMPTOMS

When network IP packets are dropped by a Pragmatic General Multicast (PGM) router, the computer that receives the packet is expected to send negative acknowledgement (NAK) packets to the PGM router. The NAK packets request the dropped packets. However, a Microsoft Windows Server 2003-based receiving computer may send the NAK packets to the original packet sender instead of to the PGM router.

Note The Microsoft Message Queueing (MSMQ) 3.0 multicast is based on the PGM transport protocol.

RESOLUTION

This problem was fixed in Windows Server 2003 Service Pack 1 (SP1).

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows Server 2003 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

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.

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 2003, x86-based versions
File nameFile versionFile sizeDateTimePlatform
Rmcast.sys5.2.3790.193106,49619-Jul-200418:35x86
Windows Server 2003, Itanium-based versions
File nameFile versionFile sizeDateTimePlatform
Rmcast.sys5.2.3790.193312,83219-Jul-200410:43IA-64

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates


Technical support for Windows x64 editions

Your hardware manufacturer provides technical support and assistance for Microsoft Windows x64 editions. Your hardware manufacturer provides support because a Windows x64 edition was included with your hardware. Your hardware manufacturer might have customized the Windows x64 edition installation with unique components. Unique components might include specific device drivers or might include optional settings to maximize the performance of the hardware. Microsoft will provide reasonable-effort assistance if you need technical help with your Windows x64 edition. However, you might have to contact your manufacturer directly. Your manufacturer is best qualified to support the software that your manufacturer installed on the hardware.

For product information about Microsoft Windows XP Professional x64 Edition, visit the following Microsoft Web site:

http://www.microsoft.com/windowsxp/64bit/default.mspx

For product information about Microsoft Windows Server 2003 x64 editions, visit the following Microsoft Web site:

http://www.microsoft.com/windowsserver2003/64bit/x64/default.mspx

MORE INFORMATION

For more information about Reliable Multicast Programming and the PGM protocol, visit the following Microsoft Web site:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/reliable_multicast_programming__pgm_.asp

Modification Type:MajorLast Reviewed:7/24/2006
Keywords:kbWinServ2003preSP2fix kbBug kbHotfixServer kbQFE kbExpertiseAdvanced KB872786 kbAudITPRO
©2004 Microsoft Corporation. All rights reserved.