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Performance Problems May Occur If a Process Uses the Same Endpoint for Both TCP and UDP

This article was previously published under Q258100
This article has been archived. It is offered "as is" and will no longer be updated.
When a program uses both User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) to bind to the same endpoint (the same port and TCP/IP address), performance problems can occur under load. Note that this problem usually occurs with servers that are receiving thousands of items per minute.

This problem has not been reported in a production environment.
This problem can occur if a TCP socket is listening on the same port as a UDP socket.
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 theMicrosoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
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 2.

Article ID: 258100 - Last Review: 10/20/2013 18:36:15 - Revision: 3.2

Microsoft Windows 2000 Server, Microsoft Windows 2000 Advanced Server, Microsoft Windows 2000 Professional Edition

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