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IJ01263: ETHERCHANNEL NIB MODE COMMUNICATION FAILURE ON BACKUP ADAPTER APPLIES TO AIX 7200-02

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

  • **************************************************************
    * USERS AFFECTED:
    * Systems running the AIX 7200-02 Technology Level
    * with devices.common.IBM.ethernet.rte at 7.2.2.0.
      **************************************************************
    * ERROR DESCRIPTION:
    * On AIX 7.2 TL2, with an EtherChannel device configured in
    * Network Interface Backup (NIB) mode, if there is an issue
    * with the primary adapter which causes the etherchannel
    * to failover to the backup adapter, network communication may
    * fail even over the backup adapter, causing a total loss of
    * network communication on the LPAR.
    *
    * This happens because after failover to the backup adapter,
    * the EtherChannel may use the MAC address of the backup
    * adapter rather than continuing to use the MAC address of the
    * primary adapter.
    *
    * To avoid this problem, the fix can be applied, or as a
    * workaround, configure the EtherChannel attribute alt_addr
    * and modify use_alt_addr to "yes".
      **************************************************************
    * RECOMMENDATION:
    * Install APAR IJ01263.
    * Prior to fix availability, an interim fix is available from
    * either
    * ftp://aix.software.ibm.com/aix/ifixes/ij01263/
    * https://aix.software.ibm.com/aix/ifixes/ij01263/
    * The ifix can be installed using Live Update (LU).
    * If LU is not used, installation of the ifix requires a
    * reboot.
      **************************************************************
    

Local fix

Problem summary

  • Network outage after failover occurs, that is backup adapter is
    active.
    

Problem conclusion

  • Make primary adapter's mac address be Etherchannel's mac
    address
    

Temporary fix

  •   *********
      * HIPER *
      *********
    

Comments

APAR Information

  • APAR number

    IJ01263

  • Reported component name

    AIX V7.2

  • Reported component ID

    5765CD200

  • Reported release

    720

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    YesHIPER

  • Submitted date

    2017-11-03

  • Closed date

    2017-11-03

  • Last modified date

    2018-09-21

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

    IJ01237

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

Fix information

  • Fixed component name

    AIX V7.2

  • Fixed component ID

    5765CD200

Applicable component levels

  • R720 PSY U876238

       UP18/03/05 I 1000 Ž

PTF to Fileset Mapping

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSVEF8","label":"AIX 7.2 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11S","label":"AIX 7.2 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
21 September 2018