The information in this article applies to:
SYMPTOMSLUA applications that transmit application messages with the RH's Queued Response Indicator (QRI) flag set may stop responding when communicating to a client application through SNA server. When you step through and trace the problem, the LUA application may show a message being correctly received with the QR flag = 1 in the RH header. In the response, the QR flag is set to 1 prior to calling the SNA RUI libraries, but when it is transmitted to the host, the QR flag = 0. CAUSEThe LUA library provided with SNA Server was not designed to use the Queued Response Indicator (QRI) field. The "SNA Server LUA Programmer's Guide" contains the following design specification for the RUI libraries: lua_rh: Returned parameter. Contains the SNA request/response header (RH) of the message sent or received. For the RH for RUI_WRITE, all fields except the queued-response indicator (lua_rh.qri) and pacing indicator (lua_rh.pi) are used. MORE INFORMATION
In a response header for a normal-flow RU, the queued response indicator
(QRI) denotes whether the response is to be enqueued in TC queues (QRI=QR),
or whether it is to bypass these queues (QRI=[ASCII 172]QR). In a request header for
a normal-flow RU, it indicates what the setting of the QRI should be on the
response, if any, to this request (that is, the values on the request and
response are the same).
In the fix referenced above, SNA Server RUI libraries and SNA server
service components were changed to ensure the correct setting for the QRI
bit flows over SNA messages exchanged between clients and the host.
STATUS
Microsoft has confirmed this to be a problem in SNA Server versions 2.0,
2.1, 2.11 SP2, 3.0 and 3.0 SP1.
S E R V P A C KA supported fix for SNA Server version 2.1, 2.1, and 2.11 is now available, but has not been fully regression-tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next Service Pack that contains this fix. Contact Microsoft Technical Support for more information. Additional query words:
Keywords : kbnetwork snalua snaprog snaserverservice kbfix3.00.sp2 |
Last Reviewed: November 24, 1999 © 2000 Microsoft Corporation. All rights reserved. Terms of Use. |