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IV48669: NO ADJUSTS TCP_KEEPIDLE TO A NEGATIVE VALUE 14/02/20 PTF PECHANGE

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APAR status

  • Closed as program error.

Error description

  • When tcp_keepcnt has been set to a large value, setting
tcp_keepidle may cause AIX to adjust tcp_keepidle to a negative
value, causing TCP keepalives work incorrectly or not at all.

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED:
* Systems running the 6100-07 Technology Level with the
* bos.net.tcp.client fileset at the 6.1.7.16 through 6.1.7.19
* levels.
****************************************************************
* PROBLEM DESCRIPTION:
* When tcp_keepcnt has been set to a large value, setting
* tcp_keepidle may cause AIX to adjust tcp_keepidle to a negativ
* value, causing TCP keepalives work incorrectly or not at all.
****************************************************************
* RECOMMENDATION:
* Install APAR IV48669.
****************************************************************

    



Problem conclusion


    

  • Network option initialization routines were added to prevent
the TCP keepalive variables from being set to values that cause
TCP keepalives to malfunction.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV48669
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    YesPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2013-09-13
    • 

  • Closed date
    2013-09-13
    • 

  • Last modified date
    2014-02-20
    • 





    

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

    
IV43961
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX 610 STD EDI
    • 

  • Fixed component ID
    5765G6200
    • 



Applicable component levels


    

  • R610  PSY  U859243
       UP14/02/17  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

              [{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSMV87","label":"AIX 6.1 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSMVAX","label":"AIX Express Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSAUMY","label":"IBM AIX Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11Q","label":"AIX 6.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            20 February 2014
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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