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Figure 8-1 Three Stages of Network Convergence

Figure 8-2 WAN Technical Principles Are Motivated by Business Principles

Figure 8-3 Packetizing and Multiplexing: A Parcel Shipping Analogy

Figure 8-4 Frequency Division Multiplexing

Figure 8-5 Time Division Multiplexing

Figure 8-6 STDMs Make Efficient Use of Composite Bandwidth

Figure 8-7 STDMs Seem to Offer Something for Nothing

Figure 8-8 Major Components of a Wide Area Network Architecture

Figure 8-9 Circuit Switching vs. Packet Switching

Figure 8-10 Datagram Delivery on a Packet-Switched Network

Figure 8-11 Connection-Oriented vs. Connectionless Packet Switched Networks

Figure 8-12 ISDN Architecture

Figure 8-13 Narrowband ISDN Architecture Information

Figure 8-14 ISDN Technology

Figure 8-16 ADSL Technology Implementation

Figure 8-17 Cable Modem Installation

Figure 8-18 T-1 Frame Layout

Figure 8-19 Superframes and Extended Superframes

Figure 8-20 Digital Service Hierarchy and CCITT Standards

Figure 8-21 T-1 Technology Implementation

Figure 8-22 Optical Carrier Levels

Figure 8-23 SONET Framing

Figure 8-25 Section, Line, and Path Overhead in a SONET Frame

Figure 8-26 SONET UPSR Topology

Figure 8-27 SONET BLSR Topology

Figure 8-28 X.25 and the OSI Model

Figure 8-29 X.25 Data-Link Layer Protocol: HDLC

Figure 8-31 X.25 Technology Implementation

Figure 8-32 Switched Network Services Hierarchy

Figure 8-33 Point-to-Point vs. End-to-End Error Correction

Figure 8-34 Frame Relay Frame Layout

Figure 8-35 Multiple PVCs per Access Line

Figure 8-36 ATM UNI Protocol Model

Figure 8-40 CBR, VBR, and ABR Bandwidth Management for ATM

Figure 8-41 Implementation of ATM Technology