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IJ34668: ROCE ADAPTER SENDING LLDP MULTICAST CAUSES NETWORK FAILURE APPLIES TO AIX 7200-05

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APAR status

  • Closed as program error.

Error description

  • If etherchannel is configured in NIB Mode on top of Mellanox
adapters, then during primary to backup port fail over time we
may face poor network performance. This is because the failed
primary port also send LLDP packets to the switch and hence the
switch get confused on the port failure.

Local fix

  • 



Problem summary


    

  • If etherchannel is configured in NIB Mode on top of Mellanox
adapters, then during primary to backup port fail over time we
may face poor network performance. This is because the failed
primary port also send LLDP packets to the switch and hence the
switch get confused on the port failure.

    



Problem conclusion


    

  • Enabled users to regulate LLDP sending behavior of adapter.

    



Temporary fix


    

  • 



Comments


    

  • 7200-05 - use AIX APAR IJ34668

    



APAR Information




    

  • APAR number
    IJ34668
    • 

  • Reported component name
    AIX V7.2
    • 

  • Reported component ID
    5765CD200
    • 

  • Reported release
    720
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2021-08-23
    • 

  • Closed date
    2021-08-23
    • 

  • Last modified date
    2021-10-03
    • 





    

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

    • 

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

    
U890352
    

    • 



Fix information


    

  • Fixed component name
    AIX V7.2
    • 

  • Fixed component ID
    5765CD200
    • 



Applicable component levels


    

  • R720  PSY  U890352
       UP21/09/08  I  1000
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSVEF8"},"Platform":[{"code":"PF053","label":"Power Systems"}],"Version":"720","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            04 October 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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