DOCUMENT:Q182637 15-MAR-2000 [sna] TITLE :SNA Server Notifies Windows NT Clients of All Invokable TPs PRODUCT :Microsoft SNA Server PROD/VER:WINDOWS:3.0,3.0 SP1,3.0 SP2,3.0 SP3,4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft SNA Server, versions 3.0, 3.0 SP1, 3.0 SP2, 3.0 SP3, 4.0 ------------------------------------------------------------------------------- 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 this to be 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 Additional query words: ====================================================================== Keywords : Technology : kbAudDeveloper kbSNAServSearch kbSNAServ300 kbSNAServ400 kbSNAServ300SP3 kbSNAServ300SP1 kbSNAServ300SP2 Version : WINDOWS:3.0,3.0 SP1,3.0 SP2,3.0 SP3,4.0 Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2000.