This chapter from Broadband Network Architectures: Designing and Deploying Triple-Play Services describes the range of DSL types in common use among carriers today, from the 8 Mbps speeds of ADSL, to ADSL2+, to the 100 Mbps speeds of VDSL2.
Read the rest of Chapter 6 in this PDF: Evolutions in Last Mile Broadband Access
About the book: Service providers are increasingly focused on delivering triple-play bundles that incorporate Internet, video, and VoIP services–as well as multi-play bundles containing even more advanced services. Broadband Network Architectures is the first comprehensive guide to designing, implementing, and managing the networks that make triple-play services possible.
Hellberg, Greene, and Boyes present their field-tested industry best practices and objectively evaluate the tradeoffs associated with key up-front architectural decisions that balance the complexities of bundled services and sophisticated traffic policies. Broadband Network Architectures not only documents what is possible on this rapidly changing field of networking, but it also details how to divide Internet access into these more sophisticated services with specialized Quality of Service handling.
Excerpted from Broadband Network Architectures: Designing and Deploying Triple-Play Services by Chris Hellberg, Dylan Greene and Truman Boyes. (ISBN: 0-13-230057-5).
Copyright © 2007, Pearson Education. All rights reserved.
