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MPLS Fundamentals by Luc De Ghein - CCIE No. 1897

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Summary

Although this chapter could have covered more about CEF, this book is about MPLS, not CEF. You did learn the basics of CEF so that you understand how it is used in the context of MPLS. You also learned the differences among process switching, fast switching, and CEF switching. You should understand the functioning of CEF and its two main components: the adjacency table and the CEF table. You discovered how CEF performs equal cost load balancing and unequal cost load balancing on IP packets. Finally, you found out why CEF is needed for MPLS and how load balancing of labeled packets is performed.

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