Table of Contents

( Chapters conclude with a Summary and/or Endnotes.)

1. ADSL History and Requirements.


Growth of the Internet.



Role of Service Providers.



Competition Among Service Providers.



The Business Case for ADSL.



Analysis of an ADSL Business Case.



The DSLs.



HDSL.



IDSL.



SDSL.



VDSL.



ADSL History and Standardization.



ADSL Forum.



Universal ADSL Working Group (UAWG).



ATM Forum.



Internet Engineering Task Force (IETF).



International Telecommunications Union (ITU).



American National Standards Institute (ANSI).



European Telecommunications Standardization Institute (ETSI).



ADSL Deployment.



United States ILECs and the JPC.



Global Deployment.



Tariffs.



2. Architecture.


The ADSL Layer.



ADSL Standardization History.



Technology.



Performance of CAP and DMT.



Interference within CAP and DMT.



ADSL and ISDN.



ATM and ADSL.



Basic Concepts and Background.



Physical Layer.



ATM Layer.



ATM Adaptation.



Connection Types and Signaling.



Routing—The Network-Network Interface.



ATM Addressing Plans.



Traffic Management.



Frame—An Alternative.



Data Encapsulations.



Bridging.



Classical IP.



LANE and MPOA.



Point-to-Point Protocol (PPP) over ATM.



Native ATM Services.



The Network and Transport Layers.



The Internet Protocol.



Routing IP Packets.



IP Multicasting.



Quality of Service.



Security (IPSec).



Network Address Translation.



The Dynamic Host Configuration Protocol.



The Domain Name System.



Tunneling.



The Transmission Control Protocol and the User Datagram Protocol.



3. ADSL Infrastructure.


The New Internet Infrastrucure.



The Customer Premises.



Terminal Equipment.



Premises Distribution Network.



ATU-R (ATU-NT).



POTS Splitters.



Central Office Equipment.



MDFs and Splitters.



DSLAM (ATU-C or ATU-LT).



Aggregation.



Access and Core Networks.



ATM Access and Core Networks.



Packet-Based Core and Access Networks.



Digital Loop Carrier Systems and the Full Service Access Network.



ISP/Corporate Gateways.



Content, Caching, and Gateways.



Web Caching.



Video Servers.



Push Servers.



VoIP Gateways.



Management and Provisioning.



Telecommunications Management Network.



Management Protocols.



Element Layer Management—G.997.1 and the ADSL Line MIB.



Network Layer Management.



Subscriber Provisioning.



Authorization and Directory Services.



Regulatory Considerations.



United States and Telecommunications Deregulation.



European Regulatory Environment.



Pacific Rim and Other Regulatory Environments.



4. Services.


End-to-End ATM Virtual Circuit Connections.



Advantages and Disadvantages to ATM.



PVCs.



SVCs Switched Virtual Circuits.



PPP Point-to-Point Protocol.



PPP Termination.



Policy Routing.



ISP Contexts.



L2TP - Layer Two Tunneling Protocol.



Multiprotocol Label Switching (MPLS).



IP Security (IPSec) Tunnels.



Multi-Destination Support.



Extending PPP to the Desktop.



L2TP to the Desktop.



PPP Proxy.



Bridging.



RFC-1483.



Subscriber Bridging and Bridge Groups.



Half Bridging.



Routing.



Voice.



Video.



Portals.



5. ADSL Implementation Examples.


Internet Access: Residential and Corporate.



Review of DSL Deployment.



ILEC Preparation.



CPE Installation and Configuration.



DSLAM Installation and Configuration.



Service Aggregator Installation and Configuration.



The Last Hundred Meters: PPP over Ethernet (PPPoE).



Beyond Aggregation.



DiffServ Marking.



Anti-Spoofing.



Firewalling.



Combining Policies into Tariffed Services.



Internet Wholesaling.



Subscriber Service Gateway Configuration.



ISP OSPF Configuration.



Portals.



Corporate Intranet Access: PPP/L2TP Tunneling.



LAC Configuration.



Subscriber Configuration.



LNS Configuration.



Corporate Extranet Connectivity: VPRNs.



IP VPN Requirements.



VPRN Deployment.



Service Aggregator Configuration.



PSTN Bypass: VoIP.



Entertainment: Video Streaming.



Performance Testing.



6. Alternatives to ADSL.


Integrated Digital Subscriber Line (IDSL).



Symmetric Digital Subscriber Line (SDSL).



High-Speed Digital Subscriber Line (HDSL).



Very High Speed Digital Subscriber.



Line (VDSL).



Other DSLs.



Cable Modems.



POTS/ISDN Dial-Up Options.



T1, Wireless, and Satellite Services.



Wireless Technologies.



Rural Subscriber Issues.



Endnotes.



Index. 0201657600T04062001

About the Author

David Ginsburg is currently vice president of Marketing and Product Management for Allegro Networks, a Silicon Valley startup that is building the first multi-router system. Prior to joining Allegro, he was a vice president of Marketing at Nortel Networks. He went to Nortel via its acquisition of Shasta Networks, where he was a founding member of Shasta's marketing team that defined the industry's first broadband-services strategy. Before joining Shasta, Dave was with Cisco Systems as product manager for their DSL aggregator platform. Earlier roles at Cisco included WAN and LAN consulting engineering for key customers, at which time he was responsible for LAN switching, as well as ATM standardization and deployment. Dave is the author of two other books in the field of networking, both of which are available from Addison-Wesley.

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