Microsoft KB Archive/326563

= SNA Client Sessions Are Unexpectedly Returned to Logon Screen =

Article ID: 326563

Article Last Modified on 2/22/2007

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APPLIES TO


 * Microsoft SNA Server 4.0
 * Microsoft SNA Server 4.0 Service Pack 1
 * Microsoft SNA Server 4.0 Service Pack 2
 * Microsoft SNA Server 4.0 Service Pack 3
 * Microsoft SNA Server 4.0 Service Pack 4
 * Microsoft Host Integration Server 2000 Standard Edition

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This article was previously published under Q326563



SYMPTOMS
When using Rumba for Microsoft Windows 95, Windows 98, Windows 98 Second Edition and Windows NT, or when using Rumba 2000 with Microsoft SNA Client to connect to a SNA Server or Host Integration Server, users are randomly kicked out of their CICS session and returned to the initial MSG10 logon screen.

The problem occurs most frequently when you type rapidly during data entry, and when you scroll through windows.



RESOLUTION
To obtain the most recent version of the PTF to resolve your issue, contact a NetManage Technical Support center:

NetManage - World Wide Support Offices

http://supportweb.netmanage.com/ts_main/office.asp

and reference issue #368452 in your communication.



Trace Statements
When this problem occurs, SNA application or node traces (Climsgx.atf, Nodemsgx.atf) typically show the following statements:  FMI  --- 17:21:31.0691 FMI  48120001->01024902 FMI DATA FMI                     NO ACK reqd Key:1 Seq:282 BCI ECI EBI CEI FMI                     BBIUI EBIUI  Enter sent by Client to SNA Server. FMI FMI   Header  at address 01195118, 1 elements FMI  00050001 640E2C00 0501011A 01002301     <....d.,.......#.> FMI FMI   Element at address 01BF0C80, start 4, end 15 FMI  2C000000 00000390 A07DC87E              <,........}H~    > FMI  --- 17:21:31.0691 FMI  01024902->48120001 FMIST ACKLUA FMI                     Msg key:1 Sequence:179 FMI FMI   Header  at address 01194B34, 0 elements FMI  01050001 60000000 000000B3 01002301     <....`.........#.>

  Host Sends SNA Server End Bracket (EB). DLC  --- 17:21:31.0691 DLC  01020701->05160000 DLC DATA DLC                     DAF:01 OAF:05 ODAI:off Normal DLC                     RQE FMD BC EC DR1 BB CD DLC DLC   Header  at address 01195118, 1 elements DLC  00050100 640F2C00 010500B3 01002301     <....d.,.......#.> DLC DLC   Element at address 01BF0C80, start 10, end 15 DLC  0390A07D C87E                           <...}H~          >

  SNA Server sends Client End Bracket (EB) (sent by host). DLC  --- 17:21:32.0082 DLC  05160000->01020701 DLC DATA DLC                     DAF:05 OAF:01 ODAI:off Normal DLC                     RQE FMD BC EC DR1 EB DLC DLC   Header  at address 01195118, 1 elements DLC  00050100 640F2C00 0501011B 01002301     <....d.,.......#.> DLC DLC   Element at address 01BF0C80, start 10, end 12 DLC  039040                                  <..@             >

  Host sends SNA Server Bid Request. FMI  --- 17:21:32.0082 FMI  01024902->48120001 FMI DATA FMI                     NO ACK reqd Key:284 Seq:283 BCI ECI EBI CEI FMI                     BBIUI EBIUI FMI FMI   Header  at address 01195118, 1 elements FMI  0005011C 640E2C00 0501011B 01002301     <....d.,.......#.> FMI FMI   Element at address 01BF0C80, start 4, end 12 FMI  2C000501 011B0390 40                    <,.......@       > DLC  --- 17:21:32.0097 DLC  05160000->01020701 DLC DATA DLC                     DAF:05 OAF:01 ODAI:off Normal DLC                     BID    RQD DFC FI BC EC DR1 DLC DLC   Header  at address 01195118, 1 elements DLC  00050100 640F2C00 0501011C 01002301     <....d.,.......#.> DLC DLC   Element at address 01BF0C80, start 10, end 13 DLC  4B8000C8                                <K..H            >

</li>  SNA Server sends client Bid Request (sent by host). <pre class="fixed_text">FMI  --- 17:21:32.0097 FMI  01024902->48120001 FMIST CTRL BID   REQ FMI                     ACK required Msg key:284 FMHI BCI ECI RBI FMI FMI   Header  at address 01195118, 1 elements FMI  02011401 E0012C00 0501011C 01002301     <......,.......#.> FMI FMI   Element at address 01BF0C80, start 4, end 13 FMI  2C000501 011C4B80 00C8                  <,.....K..H      >

</li>  Client sends +RSP to Host's Bid Request. <pre class="fixed_text">FMI  --- 17:21:32.0097 FMI  48120001->01024902 FMIST CTRL BID   ACK FMI                     Msg key:284 FMHI BCI ECI RBI FMI FMI   Header  at address 01195118, 1 elements FMI  02021401 E0012C00 0501011C 01002301     <......,.......#.> FMI FMI   Element at address 01BF0C80, start 4, end 13 FMI  2C000000 011CCB80 00C8                  <,........H      > FMI  --- 17:21:32.0097 FMI  01024902->48120001 FMIST CTRL BID   ACKLUA FMI                     Msg key:284 FMHI BCI ECI FMI FMI   Header  at address 01195118, 0 elements FMI  02051401 E0000000 0000011C 01002301     <..............#.> </li>  SNA Server sends client's +RSP to host. <pre class="fixed_text">DLC  --- 17:21:32.0097 DLC  01020701->05160000 DLC DATA DLC                     DAF:01 OAF:05 ODAI:off Normal DLC                     BID    +RSP DFC FI BC EC DR1 DLC DLC   Header  at address 01194B34, 1 elements DLC  01051C01 00012C00 0105011C 01002301     <......,.......#.> DLC DLC   Element at address 01BEF48C, start 10, end 13 DLC  CB8000C8                                <...H            >

</li>  Client sends SNA Server Enter Key with data.

This causes the Bracket Violation to occur. Rumba Client already agreed with a +RSP host's BID req. <pre class="fixed_text">FMI  --- 17:21:32.0113 FMI  48120001->01024902 FMI DATA FMI                     NO ACK reqd Key:5121 Seq:284 FMHI BCI ECI FMI                     EBIUI FMI FMI   Header  at address 01195118, 1 elements FMI  00051401 E0020000 0000011C 01002301     <..............#.> FMI FMI   Element at address 01BEF48C, start 4, end 15 FMI  2C000000 00000390 A07DC87E              <,........}H~    > FMI  --- 17:21:32.0113 FMI  01024902->48120001 FMIST RSRC FMI                     Credit:1 FMI FMI   Header  at address 01194B34, 0 elements FMI  04050001 00012C00 0105011C 0100B500     <......,.........>

</li>  SNA Server sends Negative Acknowledgement (NACK-2) to client. <pre class="fixed_text">FMI  --- 17:21:32.0113 FMI  01024902->48120001 FMIST NACK-2 FMI                     Msg key:5121 Fail: NONCRIT  Err1:2003 FMI                     Err2:0000 FMI FMI   Header  at address 01195118, 0 elements FMI  01041401 E0002003 00000114 01002301     <...... .......#.>

</li>  Host sends SNA Server Begin Bracket (BB) and End Bracket (EB). <pre class="fixed_text">DLC  --- 17:21:32.0425 DLC  05160000->01020701 DLC DATA DLC                     DAF:05 OAF:01 ODAI:off Normal DLC                     RQE FMD BC EC DR1 BB EB DLC DLC   Header  at address 01195118, 1 elements DLC  01051C01 00012C00 0501011D 01002301     <......,.......#.> DLC DLC   Element at address 01BEF48C, start 10, end 12 DLC  0390C0                                  <... > DLC  --- 17:21:32.0425 DLC  01020701->05160000 DLCST RSRC DLC                     Credit:4 DLC DLC   Header  at address 01194B34, 0 elements DLC  04050004 00012C00 0105011C 0100B500     <......,.........>

</li>  SNA Server sends Begin Bracket (BB) and End Bracket (EB) to Client. <pre class="fixed_text">FMI  --- 17:21:32.0425 FMI  01024902->48120001 FMI DATA FMI                     NO ACK reqd Key:286 Seq:285 BCI ECI BBI EBI FMI                     CEI BBIUI EBIUI FMI FMI   Header  at address 01195118, 1 elements FMI  0005011E 6C0E2C00 0501011D 01002301     <....l.,.......#.> FMI FMI   Element at address 01BEF48C, start 4, end 12 FMI  2C000501 011D0390 C0                    <,........ >

</li>  Host sends BID to SNA Server. <pre class="fixed_text">DLC  --- 17:21:32.0425 DLC  05160000->01020701 DLC DATA DLC                     DAF:05 OAF:01 ODAI:off Normal DLC                     BID    RQD DFC FI BC EC DR1 DLC DLC   Header  at address 01195118, 1 elements DLC  04050004 00012C00 0501011E 01002301     <......,.......#.> DLC DLC   Element at address 01BEF48C, start 10, end 13 DLC  4B8000C8                                <K..H            > FMI  --- 17:21:32.0441 FMI  48120001->01024902 FMIST RSRC FMI                     Credit:1 FMI FMI   Header  at address 01195014, 0 elements FMI  04050001 6C0E2C00 0501011D 01002301     <....l.,.......#.>

</li>  SNA Server sends BID Request to Client (sent by Host). <pre class="fixed_text">FMI  --- 17:21:32.0441 FMI  01024902->48120001 FMIST CTRL BID   REQ FMI                     ACK required Msg key:286 FMHI BCI ECI RBI FMI FMI   Header  at address 01195118, 1 elements FMI  02011401 E0012C00 0501011E 01002301     <......,.......#.> FMI FMI   Element at address 01BEF48C, start 4, end 13 FMI  2C000501 011E4B80 00C8                  <,.....K..H      >

</li>  Client sends -RSP to SNA Server regarding Begin Bracket (BB) and End Bracket (EB) request (sent by host) with a Negative Acknowlegement (Nack-1) error message and 0813 sense code. Client believes it still has the bracket to send data. <pre class="fixed_text">FMI  --- 17:21:32.0441 FMI  48120001->01024902 FMIST NACK-1 FMI                     Msg key:1 Sense1:2C00 Sense2:0105 FMI                     Sequence:285 FMI FMI   Header  at address 01195014, 1 elements FMI  01030001 00012C00 0105011D 0100B500     <......,.........> FMI FMI   Element at address 01BF0C80, start 4, end 16 FMI  2C000000 011D8790 00081300 01           <,.....g...... > FMI  --- 17:21:32.0441 FMI  01024902->48120001 FMIST ACKLUA FMI                     Msg key:1 Sequence:285 FMI FMI   Header  at address 01195014, 0 elements FMI  01050001 60000000 0000011D 0100B500     <....`...........>

</li>  SNA Server sends -RSP regarding Being Bracket (BB) and End Bracket (EB) to host (sent by Client). <pre class="fixed_text">DLC  --- 17:21:32.0441 DLC  01020701->05160000 DLC DATA DLC                     DAF:01 OAF:05 ODAI:off Normal DLC                     -RSP FMD SD BC EC DR1 PI DLC DLC   Header  at address 01195118, 1 elements DLC  02010100 00012C00 0105011D 01002301     <......,.......#.> DLC DLC   Element at address 01BEF48C, start 10, end 16 DLC  87910008 130001                         <gj..... >

</li>  Client sends -RSP to Host's Bid request to SNA Server. <pre class="fixed_text">FMI  --- 17:21:32.0441 FMI  48120001->01024902 FMIST CTRL BID   NAK1 FMI                     Sense1:2C00 Sense2:0501 Msg key:286 FMHI BCI FMI                     ECI RBI FMI FMI   Header  at address 01195014, 1 elements FMI  02031401 E0012C00 0501011E 01002301     <......,.......#.> FMI FMI   Element at address 01BEF48C, start 4, end 17 FMI  2C000000 011ECF90 00081300 01C8         <,............H  > FMI  --- 17:21:32.0441 FMI  01024902->48120001 FMIST CTRL BID   ACKLUA FMI                     Msg key:286 FMHI BCI ECI FMI FMI   Header  at address 01195014, 0 elements FMI  02051401 E0000000 0000011E 01002301     <..............#.>

</li>  SNA Server sends -RSP to Host's bid req to host (from client). <pre class="fixed_text">DLC  --- 17:21:32.0441 DLC  01020701->05160000 DLC DATA DLC                     DAF:01 OAF:05 ODAI:off Normal DLC                     BID    -RSP DFC FI SD BC EC DR1 DLC DLC   Header  at address 01195118, 1 elements DLC  02011E01 00012C00 0105011E 0100B500     <......,.........> DLC DLC   Element at address 01BF0C80, start 10, end 17 DLC  CF900008 130001C8                       <.......H        > DLC  --- 17:21:32.0535 DLC  05160000->01020701 DLCST RSRC DLC                     Credit:4 DLC DLC   Header  at address 01194B34, 0 elements DLC  04010004 00012C00 0105011D 01002301     <......,.......#.>

</li>  Unbind sent to SNA Server from Host. <pre class="fixed_text">DLC  --- 17:21:32.0722 DLC  05160000->01020701 DLC DATA DLC                     DAF:05 OAF:01 ODAI:off Exp. DLC                      UNBIND RQD SC  FI BC EC DR1 DLC DLC   Header  at address 01194B34, 1 elements DLC  02011E01 00012D00 0501E251 01002301     <......-...SQ..#.> DLC DLC   Element at address 01BF0C80, start 10, end 14 DLC  6B800032 01                             <k..2. >

</li>  Close PLU sent by SNA Server to Client (originally sent by host). <pre class="fixed_text">FMI  --- 17:21:32.0722 FMI  01024902->48120001 CLOSE PLU  REQUEST FMI                     Normal FMI FMI   Header  at address 01194B34, 1 elements FMI  01020100 E00E0000 0000E251 01002301     <..........SQ..#.> FMI FMI   Element at address 01BF0C80, start 4, end 14 FMI  2D000501 E2516B80 003201                <-...SQk..2. >

</li></ul>

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Additional query words: bounce bounced kick reject random HIS 2000

Keywords: kbinfo KB326563

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