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PH66742: CICSPlex SM Coexistence with 6.3 CMAS regions

A fix is available

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Co-existence and Compatibility for CICSPlex SM regions
    interacting with CICSPlex SM 6.3 agents.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICSPlex SM Users.                       *
    ****************************************************************
    * PROBLEM DESCRIPTION: Compatibility and co-existence updates  *
    *                      required for operation of previous      *
    *                      CICSPlex SM releases with 6.3 CPSM      *
    *                      agents. This allows compatibility       *
    *                      with ATTLSAWARE support for IPIC.       *
    ****************************************************************
    * RECOMMENDATION: The PTF(s) addressing this APAR should be    *
    *                 applied to all CPSM CICS regions (CMAS,LMAS  *
    *                 and WUI regions) and these restarted. This   *
    *                 can be performed in any order.               *
    ****************************************************************
    Due to changes in resource definitions included in 6.3,
    co-existence changes are required to be applied at earlier
    releases, to ensure compatibility when 6.3 CMAS and MAS agents
    are also active within a CICSplex.
    
    CICS TS 6.3 adds support for ATTLSAWARE for IPIC connections
    TCPIPSERVICE and IPCONN definitions (TCPDEF and IPCONDEF). This
    has included introducing SSL(ATTLSAWARE) for IPIC. To allow
    these definitions to be installed on earlier releases a change
    is required to allow co-existence for these definitions.
    
    This encompasses the following:
    - IPCONDEF definitions with SSL(ATTLSAWARE)
    - TCPDEF definitions with PROTOCOL(IPIC) and SSL(ATTLSAWARE)
    - IPCONN resources installed with SSL(ATTLSAWARE)
    

Problem conclusion

  • Changes have been made to ensure correct co-existence with
    6.3 release MAS and CMAS agents. This allows previous releases
    to display and query the new SSL(ATTLSAWARE) value for these
    definitions and resources.
    
    Change have been made to allow 6.3 IPCONDEF and TCPDEF
    definitions to be installed into previous release CPSM agents,
    with the SSL attribute being altered to SSL(NO) when installed.
    
    This results in resources installed in this release with:
    - IPCONDEF resources installed with SSL(ATTLSAWARE) are
    installed as a IPCONN with SSL(NO).
    - TCPDEF resources installed with PROTOCOL(IPIC) and
    SSL(ATTLSAWARE) are installed as a TCPIPService with SSL(NO).
    
    When these 6.3 definitions with SSL(ATTLSAWARE) are installed
    in an applicable pre-6.3 LMAS region they are installed with
    SSL(NO). As a result if the remote partner requires a TLS/SSL
    connection, the connections will be rejected and these will
    not operate correctly.
    
    Keywords: CIC0603C/K  IBM.Coexistence.CICS.V6R3
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH66742

  • Reported component name

    CICS TS Z/OS V5

  • Reported component ID

    5655Y0400

  • Reported release

    20M

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2025-05-28

  • Closed date

    2025-09-19

  • Last modified date

    2025-10-02

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

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

    PH66743 UO04981 UO04982 UO04983 UO04984

Modules/Macros

  • DFJ@H531 DFJ@H532 DFJ@H533 DFJ@H583 EYU0BNC9 EYU0BNCG EYUA0167
    EYUA3836 EYUC0167 EYUC3836 EYUE0167 EYUE3836 EYUL0167 EYUL3836
    EYUP0167 EYUP3836 EYUT0167 EYUT3836 EYUY0167 EYUY3836
    

Fix information

  • Fixed component name

    CICS TS Z/OS V5

  • Fixed component ID

    5655Y0400

Applicable component levels

  • R200 PSY UO04983

       UP25/09/24 P F509

  • R20M PSY UO04984

       UP25/09/24 P F509

  • R300 PSY UO04981

       UP25/09/23 P F509

  • R30M PSY UO04982

       UP25/09/23 P F509

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

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Document Information

Modified date:
02 October 2025