Microsoft KB Archive/182637

= SNA Server Notifies Windows NT Clients of All Invokable TPs =

Article ID: 182637

Article Last Modified on 5/17/2005

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APPLIES TO


 * Microsoft SNA Server 3.0 Service Pack 4
 * Microsoft SNA Server 4.0
 * Microsoft SNA Server 3.0 Service Pack 2
 * Microsoft SNA Server 3.0 Service Pack 3
 * Microsoft SNA Server 4.0

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This article was previously published under Q182637



SYMPTOMS
SNA Server notifies all SNA Server Windows NT clients of all invokable transaction programs (TPs) registered in the SNA dubdomain, even though the SNA Windows NT clients ignore these entries. This problem may cause no observable symptoms. However, it can cause excessive network traffic between SNA Windows NT clients and SNA Server computers if a large number of invokable TPs are registered within an SNA Server subdomain. This excessive traffic may lead to LAN connectivity problems between SNA Server Windows NT clients and the SNA Server computer.



CAUSE
Each SNA Server keeps track of all invokable transaction programs (TPs) registered on all servers and clients within the SNA Server subdomain. When SNA Server receives an FMH-5 attach message for a specific TP name, SNA Server routes the request to the appropriate server or client computer. Although SNA Server needs to advertise all registered invokable TPs to all other SNA Server computers in the subdomain, it also advertises these entries to all attached SNA Server Windows NT clients, which ignore this information.



STATUS
Microsoft has confirmed that this is a problem in SNA Server versions 3.0,3.0 SP1, 3.0 SP2, 3.0 SP3 and 4.0. This problem was corrected in the latest SNA Server version 4.0 U.S. Service Pack. For information on obtaining this Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Keywords: kbbug kbfix KB182637

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