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End-to-End DSL Architectures by Wayne C. Vermillion

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Chapter 6. Cisco IOS Configurations

This chapter presents the configurations of the four basic TCP/IP architectures for DSL that were described in Chapter 3, “TCP/IP Over ATM.” These include three architectures based on RFC 2684 (which made obsolete RFC 1483): Integrated Routing and Bridging (IRB), Routed Bridge Encapsulation (RBE), and Point-to-Point Protocol over ATM (PPPoA). Additionally, both Chapter 3 and this chapter explain Point-to-Point Protocol over Ethernet (PPPoE, RFC 2516). Virtual Private Networks (VPNs) are also described in this chapter, but they are configured beyond the actual DSL network.

In DSL networking, PPPoE is the most popular, although exact market shares of these architectures have not been defined. IRB was the first ...

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