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    CCIP BGP (642-661) Quick Learning Modules

    By Raiy Wong | October 11, 2009

    The following Quick Learning Modules are focused on a specific lesson or topic from the current BGP curriculum.

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    Introducing BGP Confederations

    This QLM describes the function of confederations in a BGP environment. After completing this lesson, you should be able to:

    · Describe iBGP full-mesh requirements when using a transit AS.

    · Explain how to use BGP confederations to split an autonomous system into a series of smaller autonomous systems.

    · Describe autonomous system path propagation in BGP confederations.

    · Explain autonomous system path attribute processing in an autonomous system that contains BGP confederations.

    · Explain the properties of intraconfederation eBGP sessions.

    Watch Now

    Introducing Route Reflectors

    Upon completing this lesson, you should be able to:

    · Describe the function of route reflectors in a BGP environment:

    · Explain the need for BGP route reflectors in BGP transit backbones

    · Explain how route reflectors modify traditional IBGP split-horizon rules

    · Explain the benefits of deploying redundant route reflectors

    · Explain how route reflector clusters prevent loops in the deployment of route reflectors in redundant configurations

    · Describe additional route reflector mechanisms designed to prevent routing loops

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    Understanding BGP Path Attributes

    Upon completing this module, you should be able to do the following:

    · List BGP path attributes and the functionality of each attribute

    · Describe the concept of BGP path attributes

    · Explain the difference between mandatory and discretionary well-known BGP attributes

    · Explain the difference between nontransitive and transitive optional BGP attributes

    · Describe the functionality of the AS-path attribute

    · Describe the functionality of the next-hop attribute

    Watch Now

             

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