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  • Content created by Rene Molenaar (CCIE #41726)


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Forum Replies

  1. system says:

    Hi Rene,

    I really enjoyed the presentation of your book called how to master ccna. This is the kind of presentation im looking for but most of these books out there have too much detail. Do you have a book for CCENT or atleast can you recommend a similar book for CCENT?


  2. Your discussion on BGP synchronization is excellent. Really explains the topic. Many Thanks

  3. Hi Navid,

    Glad to hear you like it.

    I don’t have anything on Enhanced Route Refresh at the moment. I’ll add it to my list, might be nice for the future.


  4. Hi Xin,

    Using the clear ip bgp in command is a nice way to manually request a route refresh from your neighbor.

    Once you do this, you can see it in the debug that R2 is requesting R1 for a refresh:

    BGP: sending REFRESH_REQ(5) for afi/safi: 1/1


  5. Hi Rene,

    In summary …

    HARD RESET : It will tear down TCP session as well as BGP session.Establishing new BGP session, will send Route refresh request to neighbor and learn all prefix again also network interuption will occured.

    Soft Reconfiguration : Need More Memory due to store RAW Prefix in seperate table. No network interuption and will not send any Route refresh request.

    Route Refresh : This is the most suitable method.No network interuption , no extra memory needed.Just send a Route refresh request.

    Please correct me if I am wrong with my understanding .Thx


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