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Metro Ethernet by Sam Halabi

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Chapter 4. Hybrid L2 and L3 IP/MPLS Networks

This chapter covers the following topics:

In Chapter 3, “Metro Ethernet Services,” you reviewed the issues that can be created by an L2-only Ethernet model. This chapter first focuses on describing a pure L3VPN implementation and its applicability to metro Ethernet. This gives you enough information to compare L3VPNs and L2VPNs relative to metro Ethernet applications. The chapter then delves into the topics of deploying L2 Ethernet services over a hybrid L2 Ethernet and L3 IP/MPLS network. Some of the basic scalability issues to be considered include restrictions on the number of customers because of ...

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