The information in this article applies to:
SUMMARY
If an SLI_OPEN follows immediately after an SLI_CLOSE statement the SSCP
Welcome message screen may appear twice under some certain timing
conditions.
Q137482 LUA Program Receives Host Sign-On Screen Twice and then HangsHowever, with this update applied, this problem can still occur under certain timing conditions described in this article. An Additional Update Is AvailableAnother update to SNA Server 2.11 now supports the ability to put a small configurable delay between the SLI_CLOSE completion and issuing the new SLI_OPEN statement. Microsoft has updated the following file to include this feature:<snaroot>\system\WINRUI32.DLLThis update is for Win32 clients only and is implemented in the WIN32 RUI Interface and exported as a new registry value. Implementing the UpdateTo set this delay you have to obtain the update and add the new registry value INITDELAY under the HKEY_LOCAL_MACHINE subtree under the following subkey:
Use the following information when adding the new value:
This variable sets an optional delay in seconds in processing RUI_INIT
requests. If you do not specify an entry for data, there is no delay. If
you configure a value greater than 10, then a value of 10 is used.
MORE INFORMATIONWhen an LUA session is closed and immediately reopened, the SNA Server may resend the host SSCP welcome message twice to the LUA application. The following diagram explains what is happening:
When the host receives the first NOTIFY it sends a logon screen. At the
same time, the node is sending the second NOTIFY. In this case by the time
that the logon screen reaches the node, the node has passed on the second
NOTIFY to the link service. In that situation the node is not able to
determine whether the logon screen was sent due to the first NOTIFY, or the
second NOTIFY, and so it passes it up to the application. Shortly
thereafter, the second logon screen arrives, and the node also passes that
up to the application.
This is because the underlying SSCP-LU session on which the NOTIFYs and the logon screens flow is not brought down when the SLI session is brought down and a new SLI session is started. Therefore, the node cannot tell that a particular message on the SSCP-LU session is associated with the SLI session which has been terminated. STATUSThis feature is included in the latest U.S. Service Pack for SNA Server for Windows NT, version 2.11. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces): S E R V P A C KThis feature is also included in SNA Server versions 3.0 (all Service Packs) and 4.0. Additional query words: prodsna SLI
Keywords : kbnetwork kbprg ntnetserv kbbug2.11 sna211 |
Last Reviewed: September 30, 1999 © 2000 Microsoft Corporation. All rights reserved. Terms of Use. |