Interpreting an FMH-5 Attach for Independent LU 6.2

 Last reviewed: November 6, 1997
Article ID: Q169575
The information in this article applies to:
  • Microsoft SNA Server, versions 2.0, 2.1, 2.11, and 3.0

SUMMARY

An FMH-5 Attach is used to carry a request for conversation to be established between two transaction programs. The following is an example Attach message in a PVI (Peer Verb Interface) trace. This is the first SNA message that flows to the remote system for conversation startup: 

   PVI    ---------------------------------------------- 12:05:05.65
   PVI    751F0001->0302E453 LU 6.2   
   PVI                       MSGID:SWAT   MSGTYP:PRFLS  Sense1:0004
   PVI                       Sense2:0000 
   PVI    
   PVI    ---- Header  at address 8297B0F8, 1 elements ----
   PVI    0B050004 00000800 E1000000 0100C500     <..............E.>
   PVI    
   PVI    ---- Element at address 829935BC, start 13, end 237 ----
   PVI    430502FF 1803D000 400430F0 F0F50F04     <C.......@.0005..>
   PVI    02C1D4C9 09017B30 09E53983 81E71A11     <.AMI..{0.V9caX..>
   PVI    C2C9D6D5 C5E3C6D9 4BE2D5C1 C4E5F0F2     <BIONETFRKSNADV02>
   PVI    F124280E 0D1E0500 01000800 00000000     <1$(.............>
   PVI    0002FF00 9E12F500 9A12E200 9612A020     <......5...S.o.. >
   PVI    00051001 00000023 D7C3F2F3 F9F9E2F1     <.......#PC2399S1>
   PVI    4040F3F1 F7F9F0F0 F0F24040 40404080     <@@31790002@@@@@.>
   PVI    00000000 00000000 00000026 C4C6C1C2     <...........&DFAB>
   PVI    40F6F9F7 40F2F9F7 40404040 40404040     <@697@297@@@@@@@@>
   PVI    40404040 40404040 4040C140 00000000     <@@@@@@@@@@A@....>
   PVI    00000000 00000000 00000000 00000000     <................>
   PVI    00000000 00000000 00000000 00000000     <................>
   PVI    00000000 00000000 00000000 00000000     <................>
   PVI    00000000 00000000 00000000 00000000     <................>
         PVI    00                                      <.               >
The following is the above FMH-5 Attach broken out using the IBM SNA Format Guide: 

   43 - Length

   05 - FMH type

   02FF - Command code: ATTACH

   18 - Security indicators:  Password substitute present, PIP data present

   03 - Length of fixed length parameters (always 3)

   D00040 - Half duplex basic conversation, confirm sync level

   Transaction Program Name field:
      04 - Length
      30F0F0F5 - TP Name
   
   Access Security Information field:
   0F - Length
      0402C1D4C9 - User ID field "AMI"
      09017B3009E5398381E7 - Password field

   Logical-Unit-of-Work Identifier Field:
   1A11 C2C9D6D5 C5E3C6D9 4BE2D5C1 C4E5F0F2
   F124  280E0D1E  050001
Conversation Correlator Field: 
   00 - length field
   0800 00000000 0002FF - Attach sequence number
Pip Data (Pip data format can be found in IBM's "AS/400 5250 Display Station Pass-Through: Interface Specification" document. There is no order number for this manual. Byte 18 determines whether Pip Data is present.): 

   009E12F5 - GDS header for PIP data
   009A12E2 - GDS Header for PIP subfield
   009612A0  - GDS Header for pass-through data
      2000 - Pass through operation flags (start-up record - no diagnostics included)
   Start-up record:
   0510 - Reported System ID  - ??? (AS/400 is 0560)
   0100 - Reported Release Level
      0000 - Fixed portion flags field
      Source Device information:
         23 length field
         D7C3F2F3 F9F9E2F1 4040  <Reserved>#PC2399S1
         F3F1 F7F9 Source device type "3179"
         F0F0 F0F2 Source device model "0002"
         4040 4040 Keyboard type
         408000000000 00000000 0000 Reserved
      Dynamic configuration data:
         0026 C4
         C6C1C240 Subfield flags  
         F6F9F7 Keyboard ID
         40F2F9F740 Reserved
         40404040  Char set / code page
         4040404040404040 WSC type /model
         4040404040C14000 Actual device type / model

Additional query words:
Keywords : prodsna snaappc snabase snacpic kbnetwork
Version : 2.0 2.1 2.11 3.0
Platform : WINDOWS

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Last reviewed: November 6, 1997
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.