Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• VM/VTAM does not currently support four digit channel unit
  addresses. VM59440 identified a publication change to document
  this limitation for VM/VTAM.  However, if a user codes a four
  digit address the definition does not fail - instead they see
  sense code 081C0008 at CTCA activation.  The sense code used
  and the fact that it is seen at activation time does not help
  at all in identifying the problem as the four digit definition.
  Either function needs to be added to support four digit channel
  unit addresses or they should be failed at definition time.
  ADDITIONAL SYMPTOMS:
  IST363I  CONFIG nodename NODES AND SUBNODES SET UNAVAILABLE -
  INVALID VALUE
  IST323I LABEL = name - MACRO TYPE = LINE - KEYWORD = ADDRESS
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All attempting to use 4-digit channel unit   *
  *                 addresses with VM/VTAM 4.2.                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: A channel attached major node contains  *
  *                      a definition with a channel unit        *
  *                      address having 4 digits.  When the      *
  *                      channel is activated it fails with      *
  *                      sense code 081C0008.                    *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  VM/VTAM allows you to define a 4-digit address for a channel to
  channel connection, but when that connection is activated it
  fails with sense code 081C0008 because the leading digit is
  truncated.
  

Problem conclusion

• Although VM supports 4-digit channel unit addresses, VM/VTAM
  does not.  This APAR fails a 4-digit address at definition time
  rather than waiting for activation.
  
  As part of investigating this APAR an evaluation was made of the
  effort required to modify VM/VTAM to add 4-digit CUA support.
  The effort was deemed too extensive to implement in this APAR,
  but the evaluation is documented in requirement VTA2076800 for
  future reference.  (The requirement has been investigated
  and the decision was made not to implement it.)
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UV59892 DY44960

Modules/Macros

• ISTNOCVA ISTSDCLN ISTSDCPU
  

Fix information

• Fixed component name

  VTAM V4 VM/ESA

• Fixed component ID

  565401001

Applicable component levels

• R420 PSY UV59892

     UP97/02/13 P 9702

Fix is available

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Product categories:

Software

Networking

Enterprise Connectivity

VTAM for VSE/ESA and VM/ESA

All

Software version:

420

Reference #:

VM60846

IBM Group:

Software Group

Modified date:

2009-08-24