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Implementing ADSL, 1st edition

  • David Ginsburg

Published by Addison-Wesley Professional (August 19th 1999) - Copyright © 2000

1st edition

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Overview

A practical, service-oriented guide to large-scale ADSL implementation.

From service architecture to applications, standards to business case, Implementing ADSL delivers a complete, up-to-date analysis of what it takes to deploy ADSL. Written by a leading authority in the field, this book will be equally valuable for implementers and decision-makers in both service provider and enterprise IT organizations.

The author begins with a detailed look at the business drivers and financial models associated with ADSL implementation. Learn how to estimate ADSL service demand, revenue, capital, and ongoing expenses over the short and long-term; then review the current status of ADSL, G.Lite, and other xDSL technologies, cable modems, and other alternatives.

Next, Ginsburg introduces the ADSL service architecture, outlining an end-to-end service model from the physical layer to the network layer, and addressing crucial issues such as Quality of Service (QoS), security, and IP multicasting. Understand ADSL's physical infrastructure, including splitters and other premises equipment; DSLAMs and other central office equipment; aggregation, access, and core networks; digital loop carriers; gateways; caching solutions; and other key elements.

The author also reviews a wide range of ADSL services, including end-to-end ATM virtual circuits, PPP connections, bridging, routing, voice, video, and portals. You'll find seven detailed implementation scenarios, complete with diagrams and configuration listings based on actual deployments:

  • Residential and corporate Internet access
  • Telecommuting
  • Portals and media distribution
  • Internet wholesaling
  • Corporate intranets and extranets
  • Voice over IP
  • Video streaming

Whether you are a network manager, architect, administrator, or engineer, Implementing ADSL brings together crucial information and insight for making the best possible decisions about today's most important access technology.



0201657600B04062001

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

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