Objectives

Upon completing this lesson, you will be able to successfully configure BGP to influence route selection using prefix-list filters in a customer scenario in which connections to multiple ISPs must be supported. This ability includes being able to meet these objectives:

■ Identify the requirement for prefix-based filters in network implementations where multiple connections between a customer and ISPs exist

■ List the advantages of prefix-lists versus IP access-lists

■ Identify the Cisco IOS command that is required to configure prefix-list filters

■ Describe where you can implement prefix-lists in a BGP network

■ Identify the Cisco IOS commands that are required to apply filtering of inbound or outbound updates with prefix-lists

■ Identify the Cisco IOS commands that are required to modify configured prefix-list filters

■ Identify the Cisco IOS commands that are required to monitor the operation of configured prefix-list filters

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