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Detailed Information

This module presents the basic concepts and terminology of BGP. You learn the basic Cisco IOS Software BGP commands and configure basic BGP settings on a Cisco simulated router network, creating BGP loop-free interdomain routing between autonomous systems (ASs) in three Configuration Labs.

Objectives:

At the end of this tutorial, you will be able to:

• Identify and explain basic BGP concepts, attributes, and terminology.
• Describe how BGP forms peers (neighbors).
• Differentiate between eBGP and iBGP, and how they each enable BGP routing.
• Explain why using loopback interfaces to define a neighbor is common for iBGP but not for eBGP.
• Illustrate the difference between eBGP multihop and eBGP multihop (load balancing).
• Describe the purpose and use of neighbor templates.
• Recognize that route maps are a method used to control and modify routing information.
• Identify and describe the functions of match and set commands.
• Demonstrate the network command and how it controls what networks are originated by a router.
• Design an alternative way of advertising networks with Interior Gateway Protocol (IGP) redistributed into BGP, using the redistribute command.
• Construct static routes as a way of redistributing networks.
• Explain the principles of the BGP decision algorithm.
• List and define how BGP selcts a path.

Labs(3):

• External BGP (eBGP)
• iBGP and Synchronization
• Load Balancing and Loopback Interfaces