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Detailed Information

This module provides information on BGP4 CIDR. You learn how to apply filtering, route maps, peer groups, and more in seven lab exercises using a complex simulated network.

Objectives:

After completing this module, you will be able to:

• Identify and explain the main enhancement of BGP4 classless interdomain routing (CIDR )
• Describe aggregate addresses
• Choose the appropriate address aggregate commands
• Differentiate between the various types of filtering (route, path, and community)
• Explain the purpose of route filtering
• Illustrate the function of path filtering
• Describe what is involved in creating an AS-regular expression
• Recognize the benefit of community filtering
• Demonstrate how the neighbor command can be used in conjunction with route maps to perform either filtering or parameter setting on incoming and outgoing updates
• Identify how the as-path prepend command is used with route maps to manipulate the path information in order to manipulate the BGP decision process
• Explain how the BGP backdoor command is used
• Evaluate the effectiveness of a BGP peer group
• State the purpose of BGP confederation
• Explain how route reflectors solve the explosion of internal BGP (iBGP ) peering within an AS
• List and define the technique of route-flap dampening and how it minimizes the instability caused by route flapping and oscillation over the network

Labs(8):

• Aggregate Address
• Network Mask
• AS-PATH and Prefix Filtering
• BGP Backdoor
• iBGP Peer Groups
• eBGP Peer Groups
• BGP Confederation
• BGP Route Reflectors