SNA Server DLC Outage Codes Should be Logged in Hex. (135354)


The information in this article applies to:

  • Microsoft SNA Server 2.0, when used with:
    • the operating system: Microsoft Windows NT
  • Microsoft SNA Server 2.1, when used with:
    • the operating system: Microsoft Windows NT
  • Microsoft SNA Server 2.11, when used with:
    • the operating system: Microsoft Windows NT
This article was previously published under Q135354

SYMPTOMS

When an SNA Server connection failure occurs, SNA Server logs Event 23 in the Windows NT application event log and indicates the error code returned by the SNA Server link service in the Qualifier field. For example:
Event ID: 23
Source: SNA Server
Description: Connection <connection> using Link Service <link> failed
Qualifier = 00xx
The "xx" value in the Qualifier field indicates the "outage code", which is logged in hex format, such as "00AE". The meaning of these hex-formatted outage codes are documented in the SNA Server Reference Guide under Event 23, as well as in the SNA Server Device Interface Specification in Section 3.4.

When enabling SNA Server Data Link Control (DLC) tracing using the SNATRACE program (on either the SNA Server service, or a link service), the <snaroot>\traces\NODEMSG?.TRC message trace file will also log the outage code. However, the outage code logged in the DLC message trace is logged in decimal, which can cause confusion. For example: 
   | DLC  ---------------------------------------------- 14:15:37.37
   | DLC  05160000->01020100 DLCST OUTG
   | DLC                     Outage:174 UPTYPE:0 UPCNTR:0 COUNT:0
   | DLC
   | DLC  ---- Header  at address 00CF478C, 0 elements ----
   | DLC  18110000 00000000 00000000 0100C600     <..............F.>
In the above case, the outage code of 174 decimal is equivalent to 0xAE hex.

CAUSE

SNA Server DLC message tracing logs outage codes in decimal.

RESOLUTION

When interpreting an SNA Server DLC message trace outage message, the outage code should be converted to hex in order to locate the proper error listed in the SNA Server Reference Guide.

Microsoft has updated the file SNATRCSN.DLL to correct this problem.

STATUS

Microsoft has confirmed this to be a problem in SNA Server for Windows NT. This problem was corrected in the latest SNA Server for Windows NT, 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):

S E R V P A C K

Modification Type:MajorLast Reviewed:12/5/2003
Keywords:kbbug kbfix KB135354
©2003 Microsoft Corporation. All rights reserved.