KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q132401: 5250 Printer LU Hangs When Client-Server LAN Session is Lost

Article: Q132401
Product(s): Microsoft SNA Server
Version(s): WINDOWS:2.0,2.1
Operating System(s): 
Keyword(s): 
Last Modified: 13-JUN-2001

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft SNA Server, versions 2.0, 2.1, on platform(s):
   - the operating system: Microsoft Windows NT 
-------------------------------------------------------------------------------


SYMPTOMS
========

If you are using a third party 5250 print emulation product over SNA Server and
the print emulator is stopped, or the client-server LAN session is lost, the
AS/400 printer LU session is not cleaned up properly. As a result, 5250 print
emulation product cannot reconnect to the AS/400 printing device.

CAUSE
=====

When the 5250 print emulator is stopped, a Deallocate(ABEND) negative response
is generated. If the LU6.2 session is in a receive state, the response cannot be
sent (according to LU6.2 protocol).

RESOLUTION
==========

To correct this problem in SNA Server version 2.1, install the SNA Server 2.1
SNA Server service update (NODEUP.ZIP) located on the following electronic
services:

- On the Internet, the file is located on the Microsoft anonymous ftp server
  (ftp.microsoft.com). To download NODEUP.ZIP, change to the following
  directory:

  \bussys\winnt\sna-unsup-ed\fixes\nodeup

  The NODEUP.ZIP file must be uncompressed using PKZIP 2.04g or later, using the
  following command:

  pkunzip -d nodeup.zip

A README file is included and describes how to install the update.

There is no update available for SNA Server 2.0.

STATUS
======

Microsoft has confirmed this to be a problem in the Microsoft products that are
listed at the beginning of this article.
This problem was corrected in SNA Server 2.11.

MORE INFORMATION
================

If the application ends or the SNA Server client-server LAN session is lost, SNA
Server (with the SNA Server 2.1 SNA Server service update installed) treats this
condition as though the transaction program (TP) issued a TP_ENDED(HARD). The
session unbinds immediately instead of trying to deallocate the conversation.

Additional query words: prodsna 2.00 2.10 5250 printer unbound

======================================================================
Keywords          :  
Technology        : kbAudDeveloper kbSNAServSearch
Version           : WINDOWS:2.0,2.1
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.