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IV56506: ACTIVE DGD ON MULTIPLE ROUTES TO SAME GATEWAY CAUSES PERF ISSUE APPLIES TO AIX 7100-04

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APAR status

  • Closed as program error.

Error description

  • When there are many routes using the same gateway and if
Active DGD is enabled on all of them, this would cause
that many ICMP packets to go out to the gateway (one per
route with Active DGD flag).
This can cause performance issues on the router.

Local fix

  • 



Problem summary


    

  • Active DGD on multiple routes to same gateway through same
interface causes performance issue on the router.

When there are many routes using the same gateway and if
Active DGD is enabled on all of them, this would cause
that many ICMP packets to go out to the gateway (one per
route with Active DGD flag).
This can cause performance issues on the router.

    



Problem conclusion


    

  • Code is modified to not to send unnecessary ICMP ping requests
to the gateway when mulitple routes are configured with
same gateway and same interface.

    



Temporary fix


    

  • 



Comments


    

  • 6100-09 - use AIX APAR IV56454
6100-09 - use AIX APAR IV56454
6100-09 - use AIX APAR IV56454
7100-03 - use AIX APAR IV56490
7100-04 - use AIX APAR IV56506

    



APAR Information




    

  • APAR number
    IV56506
    • 

  • Reported component name
    AIX V7.1
    • 

  • Reported component ID
    5765H4000
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2014-03-10
    • 

  • Closed date
    2014-03-10
    • 

  • Last modified date
    2016-05-10
    • 





    

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

    
IV51814
    

    • 

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

    
U871162
    

    • 



Fix information


    

  • Fixed component name
    AIX V7.1
    • 

  • Fixed component ID
    5765H4000
    • 



Applicable component levels


    

  • R710  PSY  U871162
       UP15/11/22  I  1000
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            10 May 2016
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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