Microsoft KB Archive/309151

= Incoming SDLC PU Passthrough Connection Fails =

Article ID: 309151

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 Q309151



SYMPTOMS
When an incoming SDLC PU Passthrough connection uses a Format 1 XID, the passthrough connection fails to activate. This behavior occurs even though traces show that the XID is passed to the upstream system and a response is received. No Set Normal Response Mode (SNRM) command is sent from the Microsoft SNA Server 4.0 or Microsoft Host Integration Server 2000 system.



CAUSE
This behavior occurs because SNA Server 4.0 and Host Integration Server 2000 incorrectly treat the incoming Format 1 XID as a Format 3 XID, which causes the server to assume the secondary link station role, even though it should take the primary link station role.



SNA Server 4.0
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Microsoft SNA Server version 4.0 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English-language version of this fix should have the following file attributes or later:

NOTE: Because of file dependencies, the most recent fix that contains the preceding files may also contain additional files.

Host Integration Server 2000
To resolve this problem, obtain the latest service pack for Host Integration Server 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

328152 How to Obtain the Latest Host Integration Server 2000 Service Pack



SNA Server 4.0
Microsoft has confirmed that this is a problem in SNA Server 4.0.

Host Integration Server 2000
Microsoft has confirmed that this is a problem in Host Integration Server 2000. This problem was first corrected in Host Integration Server 2000 Service Pack 1.



MORE INFORMATION
For more information about XID commands, please refer to Chapter 2 of the IBM SNA Formats Guide (IBM doc #GA27-3136).

Additional query words: HIS 2000

Keywords: kbbug kbfix kbhostintegserv2000presp1fix kbhostintegserv2000sp1fix kbsna400sp4fix KB309151

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