KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Article: Q317805
Product(s): Microsoft SNA Server
Version(s): 
Operating System(s): 
Keyword(s): kbtool Kbhostintegserv2000
Last Modified: 15-MAY-2002

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

- Microsoft Host Integration Server 2000 
-------------------------------------------------------------------------------

SUMMARY
=======

Starting with Host Integration Server 2000, Host Integration Server 2000 clients
close their sponsor connections after five minutes and rely upon a "On Demand"
(dynamic) sponsor connection. SNA clients before Host Integration Server 2000
used "persistent" sponsor connection.

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

After a Host Integration Server 2000 client establishes a sponsor connection to
either an SNA server or Host Integration Server computer, the sponsor connection
is closed after 5 minutes. This change was implemented because the client does
not require a sponsor connection (by using port 1478) on a constant basis.

This has no effect on application sessions that communicate with the SNA/Host
Integration Server computer by using port 1477. The only circumstances where
this does not apply are:

- If an invokable Transaction Program (TP) is running on the client.

- If SNA Manager is running on an administrative client.

- If the SNA LU6.2 Resync TP service is running on an administrative client.

Under the preceding conditions, the client uses a persistent sponsor connection.
After the On Demand sponsor connection is closed, it will only be re-opened by
the SNABase when it needs to send an RPC request (for example, to locate which
servers support the requested SNA/Host Integration Server resource). During this
time, the client updates its Service Table (ST) whenever the connection is
reopened, but then closes again after the five-minute timeout expires. There is
no way to turn off the use of the On Demand sponsor connection.

REFERENCES
==========

For additional information about sponsor connections, click the article number
below to view the article in the Microsoft Knowledge Base:

  Q160849 How the SNA Server Client Chooses a Sponsor SNA Server

Additional query words: his

======================================================================
Keywords          : kbtool Kbhostintegserv2000 
Technology        : kbAudDeveloper kbHostIntegServ2000
Version           : :
Issue type        : kbinfo

=============================================================================

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.

Q317805: Sponsor Connection Changes in Host Integration Server 2000