IBM Support

IT29612: MQ .NET client sends incorrectly aligned protocol flow

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APAR status

  • Closed as program error.

Error description

  • MQ .NET managed client sending a userid and password to a queue
    manager can result in an unaligned protocol flow being
    received. In this situation, a failure data capture (FDC) record
    is generated with this info:
    
    RM680010 rriBadDataReceived rrcE_PROTOCOL_ERROR
    
    AMQ9504E: A protocol error was detected for channel
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users using a fully managed .NET MQ client sending MQCSP
    credentials over a multiplexed client channel are potentially
    affected.
    
    
    Platforms affected:
    Windows
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    The size of the protocol flow used to send MQCSP username and
    password data over a network connection varies according to the
    credentials used. The MQ protocol requires that padding is used
    in some circumstances. The MQ .NET client did not correctly
    perform this padding.
    

Problem conclusion

  • The routine to calculate the size of the transmission segment to
    send MQCSP data is corrected.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v8.0       8.0.0.14
    v9.0 LTS   9.0.0.9
    v9.1 CD    9.1.5
    v9.1 LTS   9.1.0.4
    
    The latest available maintenance can be obtained from
    'WebSphere MQ Recommended Fixes'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
    
    If the maintenance level is not yet available information on
    its planned availability can be found in 'WebSphere MQ
    Planned Maintenance Release Dates'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT29612

  • Reported component name

    IBM MQ BASE MP

  • Reported component ID

    5724H7251

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-07-11

  • Closed date

    2019-10-28

  • Last modified date

    2019-10-28

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

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

Fix information

  • Fixed component name

    IBM MQ BASE MP

  • Fixed component ID

    5724H7251

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0.0.0","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
28 October 2019