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Latest post 01-28-2017 3:27 AM by FrancescoV. 1 replies.
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  • 01-27-2017 3:36 AM

    PIM Assert Election and DR role !!

    hi,

     

    refering to this link:

    http://blog.ine.com/2010/03/20/multicast-pim-assert-mechanism/

     

    I do have two routers, they have equal OSPF metric to the source. when I leave everything at default settings, the higher IP address win the assert election and becomes the forwarder

    if I increase the interface pim DR priority on the router which has lower IP address, then it win the assert election and become the forwarder, and the old forwarder get pruned.

     

    is this normal behaviour ?

    then what is the use of higher IP address as part of assert election process !?

     

     

    thanks,

    • Post Points: 20
  • 01-28-2017 3:27 AM In reply to

    Re: PIM Assert Election and DR role !!

    Hi,

    The IP address is only used as a Tie Breaker. The Route Cost is the most important factor in this case, and Prioirity is a chance given to the network administrator to fine tune the configuartion. If everything is left at the default however, a system has to be in place to eventually chose a winner, in this case it is the IP address.

     

    Francesco

     

    • Post Points: 5
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