Forum Replies

  1. Hi Shaun,

    For CCNP ROUTE this will be enough. They expect you to have an “idea” what MPLS is about but you don’t have to configure anything. If you want to learn what MPLS VPN is about, just follow all the lessons in this overview:

    It will explain all the MPLS VPN scenarios.


  2. Hi Praveen,

    These are different topics with different solutions. First of all, keep in mind that VPN is often used to talk about encryption / authentication / security but this is not always the case. Even a VLAN could be considered a VPN, it’s “virtual” and a “private network”.

    Let me give you a quick overview in a nutshell:

    • MPLS VPN: we use this for connectivity. service providers offer MPLS for remote connectivity. For details, check the MPLS material. The "VPN" part of MPLS is that we use VRFs to separate customer routing information and we create unique V
    ... Continue reading in our forum

  3. Hi @kayoutoure

    It might help to think about this the other way around, let’s say we don’t use MPLS but BGP on all P and PE routers. This means that:

    * The P routers have to do a lookup in their routing tables for every destination.
    * The P routers have to know about every destination…this means you’ll have to redistribute customer information into BGP.
    * iBGP has to be a full mesh so if you add another P router in your network, you’ll have to establish neighbor adjacencies with all other iBGP routers. You can make your life a bit easier with route reflectors an

    ... Continue reading in our forum

  4. Hello Zaman

    MPLS functions on many vendors’ equipment as it is an open method of data-carrying. Cisco chooses to implement MPLS in combination with CEF because of their similarities in functions and the efficiency this introduces. Essentially, CEF functionality complements MPLS.

    MPLS is like CEF because it generates a table with mappings from incoming labels to outgoing labels and next

    ... Continue reading in our forum

78 more replies! Ask a question or join the discussion by visiting our Community Forum