Windows 3.x Client Returns One Local APPC LU Using Display Verb (185604)

SYMPTOMS

In an SNA Server subdomain that contains multiple SNA Server computers, a 16-bit APPC application that uses the DISPLAY function to retrieve the list of APPC LUs may not get a complete list of all the available APPC LUs in the subdomain. The APPC application shows only the available APPC LUs from one of the SNA Server computers in the subdomain. If there is only one SNA Server in the subdomain, the DISPLAY function appears to function correctly.

Although this was reported when using the 16-bit ODBC Driver for DB/2 included with SNA Server, other 16-bit APPC applications that use the DISPLAY function to retrieve the list of available APPC LUs may also experience the problem.

CAUSE

The APPC application must issue the DISPLAY function once for every SNA Server computer in the subdomain to retrieve all of the available APPC's LUs. The problem occurs because the 16-bit DMOD always sends the DISPLAY function request to the same SNA Server computer. This occurs because the 16-bit DMOD ignores the SNA Server name that the application specified in the DISPLAY function.

STATUS

Microsoft has confirmed this to be a problem in SNA Server versions 3.0, 3.0 SP1, 3.0 SP2, and 3.0 SP3. We are researching this problem in versions 3.0, 3.0 SP1, 3.0 SP2, and 3.0 SP3 and will post new information here in the Microsoft Knowledge Base as it becomes available.

Microsoft has confirmed this to be a problem in SNA Server version 4.0. This problem has been corrected in the latest U.S. Service Pack for SNA Server version 4.0. 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 K