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Q282461: DEACTIVATE_SESSION Returns Parameter_Check If No Sessions Active

Article: Q282461
Product(s): Microsoft SNA Server
Version(s): 4.0 SP2,4.0 SP3,4.0 SP4
Operating System(s): 
Keyword(s): kbDSupport kbsna400sp2 kbsna400sp3 kbhis2000fix kbsna400sp4
Last Modified: 16-MAY-2002

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The information in this article applies to:

- Microsoft SNA Server, versions 4.0 SP2, 4.0 SP3, 4.0 SP4 
- Microsoft Host Integration Server 2000 
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SUMMARY
=======

The DEACTIVATE_SESSION verb requests SNA Server or Host Integration Server (HIS)
2000 to deactivate a particular Advanced Program-to-Program Communications
(APPC) session between the local APPC Logical Unit (LU) and a specified partner
APPC LU, or all active sessions on a particular mode. To indicate that all of
the active sessions for a specified partner APPC LU and APPC mode should be
deactivated, the session_id parameter should be set to 8 binary zeros (00000000)
in the DEACTIVATE_SESSION verb.

If an APPC application issues a DEACTIVATE_SESSION verb to deactivate all of the
active sessions when there are no active sessions, the verb completes with the
following error message:

  Primary Return Code: AP_PARAMETER_CHECK
  Secondary Return Code: AP_INVALID_SESSION_ID

This behavior is by design because the session_id is invalid if there are no
active sessions to deactivate.

Other SNA platforms don't return an error when a DEACTIVATE_SESSION verb is
issued under the same scenario; the other SNA platforms return a primary return
code of OK in this situation.

This behavior of SNA Server has been modified so that the DEACTIVATE_SESSION verb
returns with a primary return code of OK when it tries to deactivate all active
sessions for a given partner LU/mode even if there are no active sessions at the
time.

Please refer to the APPC Programmer's Guide in the SNA Server 4.0 Service Pack 2
(SP2) (or later) or Host Integration Server 2000 Software Development Kit (SDK)
for more information on the DEACTIVATE_SESSION verb.

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

A supported feature that modifies the product's default behavior is now
available from Microsoft, but it is only intended to modify the behavior
described in this article and should be applied only to systems having a
specific need for it. This feature may receive additional testing at a later
time, to further ensure product quality. Therefore, if you are not severely
affected by the lack of this feature, Microsoft recommends that you wait for the
next Microsoft SNA Server version 4.0 service pack that contains this feature.

To obtain this feature immediately, contact Microsoft Product Support Services.
For a complete list of Microsoft Product Support Services phone numbers and
information on support costs, please go to the following address on the World
Wide Web:

  http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

The English version of this feature should have the following file attributes or
later:

+-------------------------------------+
| File name    | Date       | Time    | 
+-------------------------------------+
| Snaservr.exe | 12/18/2000 | 09:00AM | 
+-------------------------------------+

NOTE: Because of file dependencies, the most recent fix that contains the above
files may also contain additional files.




Additional query words: Snaservr

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Keywords          : kbDSupport kbsna400sp2 kbsna400sp3 kbhis2000fix kbsna400sp4 
Technology        : kbAudDeveloper kbSNAServSearch kbHostIntegServ2000 kbSNAServ400SP2 kbSNAServ400SP3 kbSNAServ400SP4
Version           : :4.0 SP2,4.0 SP3,4.0 SP4
Issue type        : kbinfo

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