Introduction to WANs
ISBN: 1-58676-116-1 (WB37.0)
Copyright 2001
Course Includes
Book
Online Course
CD-ROM
Instructor Materials
Summary
In this course you will learn the technologies used to move voice and data across long distances, and
discover important new technologies such as ATM that integrate voice, data and video communications.
Basic concepts of how information is transported over a wide area network (WAN), from physical layer to
application layer, and how these technologies work is also reviewed.
Companion Web Site
TThis textbook is supported by a Web site at http://www.westnetinc.com. This companion site provides
supplemental materials and tools for both students and instructors that are integrated closely with the
content of the textbook. The instructor resources linked to the site provide customizable resources for
flexible redelivery and course management, including:
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PowerPoint presentations for each subject by unit, lesson, and activity
Sample syllabi
Hands-on labs and exercises
Activities and homework assignments
Customizable quizzes
Online Instructor's Guide to student textbook
Online Course Access
Online courses contain multimedia content to bring the textbook presentations alive-including animations
and streaming audio and video with links to additional Web-based resources. Each online course includes
the free use of a proprietary learning management system (LMS) that includes:
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Customizable syllabus
Test engine
Grade book
E-mail communication management
Private "message boards" for individual classes
Course calendar
Online courses can also be easily adapted to
additional LMSs, including Blackboard, WebCT,
eCollege, eEducation and others.
Companion CD-ROM
The CD-ROM is a dual-platform version of the online
course and comes packaged with the textbook to
allow the student to study anytime, anywhere.
Related Titles by WestNet
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Introduction to Networking
Introduction to Local Area Networks
Introduction to TCP/IP
Internetworking Devices
Go to http://www.westnetinc.com and
view entire course catalog.
Introduction to Wide Area Networks
Fundamentals of WANs
Classification of Networks
Local Area Networks
Campus Networks
Metropolitan Area Networks
Wide Area Networks
Voice Network Technology
Development of the Telecommunications Network
Analog Technology and Network Connectivity
Reduction of Trunk Lines
Early Telephones
Frequency-Division Multiplexing
Duplexing
Private Branch Exchanges
Computer Signals Over the Voice Network
Analog and Digital Signals
Modems
Integration of Voice and Data Services
Analog to Digital Conversion
Digitizing Voice Conversations
Digital Network Infrastructure
Time-Division Multiplexing
Telecom Network Organization and Structure
Long-Distance Voice Carriers
Packet Carriers
Tariffs
WAN Concepts and Components
Physical and Logical Circuits
Physical Circuits and Virtual Circuits
Permanent Virtual Circuits and Switched Virtual Circuits
Information Transfer over Switched Virtual Circuits
Connecting to WAN Circuits
Data Communications Equipment and Data Terminal Equipment
DTE-to-DCE Protocols
Connecting to Analog Networks
Analog Modems
Modulation: Amplitude, Frequency, and Phase
Modem Signals and Protocols
Interfaces: UART and RS-232
Modem Compatibility
Synchronous vs. Asynchronous Communication
Data Compression and Error Control
Connecting to Digital Networks
DTE/Channel Service Unit Interface
Subrate Facilities
Dataphone Digital Service
Microwave Communication
Microwave Transmission Characteristics
Microwave Equipment
Satellite Communication
Satellite Orbits and Transmission Characteristics
Linking to a Satellite
Satellite Equipment
Satellite Frequency Ranges
Bandwidth
Satellite Protocols
Physical Layer WAN Protocols
Summary of Data Rates
Point-to-Point Links
Dial-Up and Leased Lines
Digital Data Service (DDS)
Data Rates and Associated Applications
Bandwidth
Switched-56
Very Small Aperture Terminals (VSAT)
Satellite Applications
T-Carriers and E-Carriers
T1, FT1, and T3
Circuit Costs
Asymmetric Digital Subscriber Line (ADSL)
Digital Subscriber Lines and Internet Access
Other Options for Local High-Speed Internet Access
Cable Modems
Cable Modem Operation
ADSL or Cable Modem? The Subscriber's Perspective
Synchronous Optical Network (SONET)
Protocol Architecture
Frame Format
Network Elements
Data Link Layer WAN Protocols
Overview
Data Link Layer Protocols
Circuit Switching and Packet Switching
High Level Data Link Control (HDLC)
HDLC Operation and Framing
Serial Line Internet Protocol (SLIP) and Point to
Point Protocol (PPP)
SLIP and Compressed SLIP
Point-to-Point Protocol
End to End Connectivity
Connecting to the Internet
Higher Layer WAN Protocols
Integrated Services Digital Network (ISDN)
Concepts and Services
Protocols
Customer Premise Equipment
Reference Points
ISDN Implementation and Applications
Basic Network Connectivity
Internetworking of Remote Offices
Dial-on-Demand Remote Networking
Network Redundancy and Overflow
Frame Relay
Concepts and Services
Protocols
Permanent and Virtual Circuits
Frame Format and Addressing
Interconnecting LANs Using Frame Relay
Frame Relay Implementation
End User Access to Frame Relay Networks
Frame Relay vs. Private Line Networking
Public Frame Relay Services
Bandwidth on Demand
Conditional Bursting
Carrier Choice
Frame Relay Network Design and Requirements
Asynchronous Transfer Mode (ATM
Transfer Mode Concepts
Connection-Oriented Mode
Fixed-Length Cells
Header Details
B-ISDN and ATM
ATM Protocol Architecture
ATM Implementation
Virtual Paths and Channels
ATM Devices and Networks
ATM Communication
ATM Over SONET
ATM LAN/WAN Solutions
Introduction to Wide Area Networks
WAN Solutions
Voice over Alternative Technologies
History, Market Drivers, and Trends
Voice Over the Internet
Voice Over Frame Relay
Voice Over ATM
Virtual Private Networks
Selection of WAN Services
WAN Strategies
T-Carrier WANs
Trends in Private Line Networking
Private vs. Public Systems
Private Lines vs. Frame Relay
A Sample Wide Area Network
Role of the Network in the Organization
Primary Applications Used by the Organization
General Connectivity Strategy
Overall WAN/LAN Topologies
Future Growth Plans and Migration Strategies