Microsoft KB Archive/237744

= NBF Performance May Be Slow =

Article ID: 237744

Article Last Modified on 2/23/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition

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This article was previously published under Q237744



SYMPTOMS
When two Windows 2000-based computers create a NetBIOS Frame protocol (NBF) session with each other, there may be some cases in which data is sent twice. This causes a delay.



CAUSE
Programs that use an NBF session to send traffic between hosts set up a receive buffer on the client to cache data received in the session. When a data frame that exceeds the receive buffer is received, and there is no pending RECEIVE packet for that session, a RECEIVE_OUTSTANDING packet is sent to the sending node when a NO_RECEIVE packet should be sent. This results in extra data transmissions taking place.



RESOLUTION
The packet behavior does not cause the session to stop working; it only causes a retransmission of data in some cases.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Additional query words: netbeui

Keywords: kbenv kbnetwork kbprb KB237744

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