LI76722: CCLXOTD TERMINATES WHEN CONNECTION LIST LCGN COMMAND IS ISSUED

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APAR status

  • Closed as program error.

Error description

  • Running XOT on CCL, customer:
    Added LUs to some physical lines
    Recycled CCL and CCLXOTD to pick up the changes
    Entered command to verify changes: CONNECTION LIST LCGN
    ---
    The result of this was message CCZT207E and the XOT daemon
    went down.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users configuring a large number of      *
    *                 VCs for a port for LCGN mode.                *
    ****************************************************************
    * PROBLEM DESCRIPTION: CONNECTION LIST LCGN command causes     *
    *                      CCLXOTD daemon to shut down.  Message   *
    *                      CCZT207E appeared in                    *
    *                      the process.                            *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    After adding LUs to some physical lines, CCL and CCLXOTD are
    recycled to pick up the changes.   When the command
    CONNECTION LIST LCGN was subsequently issued, CCLXOTD went
    down.
    
    When a large number of VCs is configured for a port for LCGN
    mode, the communication between cclxotd and cclxotm fails
    when processing the cclxotm command CONNECTION LIST LCGN.
    This is because size of a packet sent by the cclxotd process
    to cclxotm is too large for the receiver to handle.
    

Problem conclusion

  • The cclxotd module was modified to send multiple smaller
    monitoring data packets to the cclxotm module rather than one
    large packet.
    

Temporary fix

Comments

APAR Information

  • APAR number

    LI76722

  • Reported component name

    X25 OVER IP FOR

  • Reported component ID

    5724O4300

  • Reported release

    120

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-04-12

  • Closed date

    2012-05-31

  • Last modified date

    2012-05-31

  • 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

    X25 OVER IP FOR

  • Fixed component ID

    5724O4300

Applicable component levels

  • R120 PSY

       UP



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Document information


More support for:

IBM X.25 Over TCP/IP for Communication Controller for Linux
All

Software version:

120

Reference #:

LI76722

Modified date:

2012-05-31

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