Cisco ROUTE 2.0: BGP Path Manipulation, Control, and BGP in the IPv6 Environment

Anyone wishing to obtain real-world routing knowledge, and those that are considering CCNP and CCIP certification. This learning path’s discussion of routing could also benefit early CCIE Routing and Switching candidates. Students completing the ROUTE 2.0 learning path should have a solid foundation in routing fundamentals, Cisco IOS basics, and Cisco routing basics. Attending the ICND1 and ICND2 classes or having the CCNA certification will fulfill these expectations.


Expected Duration
151 minutes

BGP can be used to perform PBR. To manipulate the best paths that are chosen by BGP, you need to understand the different attributes that BGP uses and how BGP selects the best path that is based on these attributes. Where multiple paths exist between your network and ISP, you need to filter certain information during the exchange of BGP updates to influence the route selection or to enforce an administrative policy. To meet this requirement, you must use filters. The primary filtering tools include route maps and prefix lists. Also, an AS path list is a useful tool for influencing inbound BGP traffic. When BGP filtering is configured, it is important that you understand how you can force information propagation. The global Internet routing infrastructure is largely built using BGP. The IPv6 Internet continues to use BGP, which has undergone modifications to support it. This extended BGP protocol, called MP-BGP, is capable of carrying a rich set of routing protocols, including IPv4 and IPv6, over a transport protocol, such as IPv4 or IPv6. This course describes the configuration of BGP path selection process using BGP attributes. How to configure various BGP filtering mechanisms to control routing updates is also explained. Lastly how to configure BGP in an IPv6 environment is detailed.


Using BGP Attributes and Path Selection Process

  • start the course
  • describe how BGP selects a routing path
  • describe the route selection process
  • describe the BGP weight attribute
  • recognize how the BGP weight attribute can be manipulated for a neighbor
  • recognize how the BGP weight attribute can be manipulated with route maps
  • configure the BGP weight attribute
  • describe the BGP local preference attribute for path selection and path manipulation
  • configure the local preference
  • describe the BGP AS path attribute
  • describe AS path prepending
  • describe the BGP MED attribute

Controlling BGP Routing Updates

  • describe the need for filtering BGP routing updates
  • identify how prefix lists can filter BGP routing updates
  • describe how AS path access list are used to filter BGP routing updates
  • describe the use of route maps to manipulate BGP routing updates
  • configure route maps to manipulate BGP routing updates
  • identify the order of filtering mechanisms processing routing updates
  • describe the ways to trigger BGP routing updates
  • describe BGP peer groups
  • configure a BGP peer group

Implementing BGP for IPv6 Internet Connectivity

  • describe how the BGP extension, MP-BGP, supports IPv6
  • describe how IPv6 BGP routes are exchanged over an IPv4 TCP session
  • set the next hop address for IPv6 routes exchanged over IPv4 sessions
  • describe the advantage of separate neighborships in a multi-protocol environment
  • compare single and dual BGP transport
  • describe BGP IPv6 filtering mechanisms
  • describe BGP IPv6 path selection using local preference

Practice:Configuring Path Manipulation and Control

  • implement BGP manipulation and update control





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