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Forum Replies

  1. bgp log-neighbor-changes
    This command simply causes a message to displayed to the console or in the event log that a status has changed with one of your established BGP neighbors. This is very useful for an administrator to know.

    no synchronization
    This can be considered a legacy command now, because in modern IOS the “no synchronization” is on by default. The explanation of this is a bit long. Your best bet is to review the synchronization lesson.

    In a nutshell, the purpose for Synchronization rule was back when many internal routers didn’t have the CPU and

    ... Continue reading in our forum

  2. Hi Rene,
    I really appreciate your nice explanation. I love the way you explained the things. I have one confusion in below statement.
    "When two EBGP routers that are directly connected do not form a working BGP neighbor adjacency there could be a number of things that are wrong:

    _Layer 2 down preventing us from reaching the other side._
    _Layer 3 issue: wrong IP address on one of the routers._
    _Access-list blocking TCP port 179 (BGP)._
    _Wrong IP address configured for BGP neighbor router."

    What do you mean by layer 2 down preventing us from reaching the other si

    ... Continue reading in our forum

  3. Hello sachin

    BGP is very specific in what it advertises. it will only advertise what is in the routing table exactly as it is stated in the routing table including prefix.

    If you want to use BGP to advertise a default route for outbound traffic, there are several ways to do this:

    **network 0.0.0.0 command** - this will inject the default route into BGP only if this same default route is currently present in the routing table.

    **redistribution from another routing protocol** will also inject the default route into BGP, again, only if it is currently in the rout

    ... Continue reading in our forum

  4. I was reading through this and then got to the trouble section on BGP Summarization. I had never really thought about it before as I have not had to configure it in the real world though I am sure I have came across it but was no problems with it so did not take any notice.

    I studied CCNP Switch and Route and I don’t ever remember coming across summarization for BGP. I then did a DDG (DuckDuckGo my google replacement search engine) search on a line of code you had in there called aggregate-address.

    Now normally when I thought about aggregate I thought about

    ... Continue reading in our forum

  5. Thank you for replying Rene.
    I understand how time consuming this could be to make videos for great topics.
    Your website has a lot of good contents.
    The videos are easy to follow and allow me to follow your labs.
    Reading the content can be challenging and that is why I sent my last comment.
    Great work on all your topic but the videos are what brought me here in the first place.

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