Possible Data Corruption w/ SNA Windows 95 Client Using TCP/IP (157218)
The information in this article applies to:
- Microsoft SNA Server 2.11
- Microsoft SNA Server 2.11 SP1
This article was previously published under Q157218 SYMPTOMS
When you transfer a large amount of data using the Microsoft SNA Server
Windows 95 client configured to use TCP/IP sockets to communicate with the
server, some data bytes (15-20 bytes) may be corrupt when passed to the
Win32 application. No APPC or CPIC errors will occur, though some data
bytes received by the application may be corrupt.
This problem has been observed in the following configuration:
- SNA Server Windows 95 client software (from 2.11.sp1) configured to
use TCP/IP sockets.
- Using a 32-bit Windows application that reads or receives large
messages and simultaneously sends data.
Applications that have encountered data corruption include:
- IBM Client Access/95, after retrieving a PTF download from the AS/400,
which is unable to run due to random DLL errors when starting.
- Win32 APPC/CPIC database applications that receive large data
messages. Part of the received data may be corrupt (or include
"garbage" characters).
CAUSE
The SNA Server Windows 95 TCP/IP client transport was not properly
receiving large TCP/IP data messages for a Win32 application, when the same
application was simultaneously trying to send data. In one case, data
corruption occurred.
STATUS
Microsoft has confirmed this to be a problem in the Microsoft SNA Server
Windows 95 client included in SNA Server 2.11 Service Pack 1.
This problem was corrected in the latest Microsoft SNA Server 2.11 U.S.
Service Pack. For information on obtaining the service pack, query on the
following word in the Microsoft Knowledge Base (without the spaces):
| Modification Type: | Major | Last Reviewed: | 11/4/2003 |
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| Keywords: | kb3rdparty kbbug kbfix kbprogramming KB157218 |
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