BGP Route Refresh and Soft Reconfiguration Inbound

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  • čas přidán 10. 07. 2020
  • In this video I explain Route Refresh and Soft Reconfiguration and show how it is used in BGP networks.
  • Věda a technologie

Komentáře • 6

  • @jennifertrudel285
    @jennifertrudel285 Před 10 měsíci

    This is a solid explanation of the risks ty. Im decomming our 6513s and wasnt sure what I might impode adding the soft- inbound config

  • @db_tracer9149
    @db_tracer9149 Před rokem

    I just want to thank you for these short and straight to the point videos! You have great teaching skills - very clear to understand...and you have a good microphone as well :)

  • @roidaniel10
    @roidaniel10 Před 3 lety

    Great video! Thank you for the useful information!

  • @enriquegabriel7708
    @enriquegabriel7708 Před rokem

    Nice video!

  • @marvinyang1157
    @marvinyang1157 Před 2 lety +1

    I think Adj-RIB-In is not get created because of soft-reconfiguration inbound, it is used in normal BGP process as well, just without soft reconfiguration, BGP will clean up this table to save memory.
    Also more info about using it for testing purposes. If you do show bgp ipv4 unicast neighbors advertised-routes will show you routes in Adj-RIB-In. If you do show bgp ipv4 unicast neighbors routes will show you routes in Loc-RIB, that is after inbound policy/filter has run against Adj-RIB-In.

    • @goncalocontente192
      @goncalocontente192 Před 2 lety

      I do not entirely agree with you. Yes, the adj-RIB-in is not created because of the soft-reconfiguration inbound command, this command only instructs the router to save that information in memory, which you can then view it with the received routes command. If you do not configure your neighbour with the soft-reconfiguration inbound command you cannot view the received routes, in fact if you try to run the received routes command the router will tell you, sorry my friend i cannot show you the routes. Simply because most probably they are not stored in memory, most certainly after applying the POLICY IN they are just flushed. So this command was introduced to allow you to make changes to your inbound policy without having to tear down your TCP sessions. This command comes at a cost of additional memory for storing updates.
      The advertised-routes command shows you the adj-RIB-OUT, this table shows you the routes that have been selected and will be advertised to your peer after applying the POLICY OUT.