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distributed vs centralized bfd juniper

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  • 1.  distributed vs centralized bfd juniper

    Posted 08-15-2016 02:28

    1* how can I quickly check whether this is a distributed or centralized bfd running in Junos?


    2* please provide the show commands as well with exact match for both.


    3* what is the role of these commands "pfe> show ppm ***" & "re> show ppm" ?



  • 2.  RE: distributed vs centralized bfd juniper
    Best Answer

    Posted 08-15-2016 03:32



    From http://www.juniper.net/documentation/en_US/junos15.1/topics/concept/bfd-distributed.html :

    "To determine if a BFD peer is running distributed BFD, run the show bfd sessions extensive command and look for Remote is control-plane independent in the command output."

    This might be different on vMX though.


    You can also verify if BFD is running on the PFE or routing engine with show ppm command:

    RE> show ppm transmissions detail protocol bfd

    Distributed: TRUE v/s Distributed: FALSE


    On pfe show ppm can be used for statistics display on the pfe:

    show ppm statistics protocol bfd

    Hope this helps.




  • 3.  RE: distributed vs centralized bfd juniper

    Posted 07-25-2018 12:56

    does this really  mean the bfd  is running inline/in hardware:  look for Remote is control-plane independent in the command output."  That would seem  to say  that  the remote side session of offloaded and the cbit is set.