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

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Chapter 1. DSL Primer

This chapter introduces the basic technologies associated with the Digital Subscriber Line (DSL) system. There are several types of DSL, such as asymmetric DSL (ADSL) and symmetric DSL (SDSL). You will see the term xDSL used in this book and throughout the industry to stand for these different types. This chapter also provides an overview of xDSL equipment. For you to best understand xDSL architectures and the specific commands to configure those architectures, you should have a basic understanding of Asynchronous Transfer Mode (ATM). ATM is discussed sufficiently for xDSL in Appendix B, “ATM Overview,” which you might want to review before going into the details later in this book, starting with references in this chapter. ...

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