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IV69979: FC 5287 ADAPTER SENDING LLDP MULTICAST CAUSES NETWORK FAILURE APPLIES TO AIX 6100-08

A fix is available

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APAR status

  • Closed as program error.

Error description

  • FC 5287 network adapter by default sends LLDP multicast
    packet.
    If an etherchannel is configured using this adapter
    without
    custom MAC address, network communication thru this
    etherchannel
    stop working after etherchannel failover to the backup
    adapter
    occurs. The reason is that the primary adapter keep
    sending LLDP
    multicast packet containing its MAC address while the
    backup
    adapter also uses the primary MAC address after failover
    and
    this confuses the network switch since they sees the same
    valid
    MAC address from two port (primary and backup) at the
    same time.
    

Local fix

  • Disable LLDP function of the network switch.
    

Problem summary

  • FC 5287 network adapter by default sends LLDP multicast
    packet. If an etherchannel is configured using this adapter
    without custom MAC address, network communication thru this
    etherchannel stop working after etherchannel failover to the
    backup adapter occurs.
    

Problem conclusion

  • ODM attribute introduced to enable or disable LLDP on need
    basis.
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV69979
    6100-09 - use AIX APAR IV75625
    7100-02 - use AIX APAR IV63948
    7100-04 - use AIX APAR IV75635
    

APAR Information

  • APAR number

    IV69979

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2015-02-26

  • Closed date

    2015-02-26

  • Last modified date

    2016-02-24

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

    IV63948

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

    U870208

Fix information

  • Fixed component name

    AIX 610 STD EDI

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U870208

       UP15/09/18 I 1000



Document information

More support for: AIX Standard Edition

Software version: 610

Operating system(s): AIX

Reference #: IV69979

Modified date: 24 February 2016