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Microsoft KB Archive/107122

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Knowledge Base

SDLC Link Failure Due to Invalid XIDs

Article ID: 107122

Article Last Modified on 3/8/2005


  • Microsoft SNA Server 2.0
  • Microsoft SNA Server 3.0
  • Microsoft SNA Server 2.11 Service Pack 1
  • Microsoft SNA Server 2.11 Service Pack 2
  • Microsoft SNA Server 3.0 Service Pack 4
  • Microsoft SNA Server 4.0
  • Microsoft SNA Server 3.0 Service Pack 2
  • Microsoft SNA Server 3.0 Service Pack 3
  • Microsoft SNA Server 4.0

This article was previously published under Q107122


If an invalid XID or an XID already in use is detected by the host when a dial-up (switched) SDLC connection is being established, the following error will be recorded in the Event Log under Application. The Event Detail will report the source SNA IBM SDLC Link. The description might read like this:

Event: 182
Connection failure, code=11
Cause Data = 3601 3401 3302 f035
Link Role = 00
Remote Node Type = 00


Cause data is a list of the failure causes from the Failure subvector in the alert. Link role and remote node type are as described in the Link Connections Subsystem Configuration Data subvector in the alert. A connection failure can be due to a station outage, rather than a link outage. If it is due to a station outage--which can be recognized by outage code values of X'80' or higher--then message #183 will also be logged.

If this occurs and there are no other configuration issues that could be causing the link service to fail, this is more than likely the cause of the failure.

The SNA Server Reference Guide (Connection failure, code=11) corresponds to "Data Set Ready (DSR) failure". This occurs when the host drops the link when the Local Node ID (XID) sent by SNA Server is not recognized or not is use.


Change the XID to a known XID, or an XID that is confirmed not to be in use. You can do this by doing the following:

  1. From SNA Server Admin, select the link service you want to change.
  2. Choose Services, and then choose Properties.
  3. In the Connection Properties dialog box, choose Setup.
  4. Change the Local Node ID by choosing the OK button, and then choosing the OK button again.
  5. Save this configuration, and then restart SNA Server.

Additional query words: prodsna

Keywords: kbnetwork KB107122