Accessing the WAN, CCNA exploration companion guide
Auteurs : VACHON Bob, GRAZIANI Rick
Chapter 1 Introduction to WANs 1
Objectives 1
Key Terms 1
Introducing Wide-Area Networks (WANs) 3
What Is a WAN? 3
Why Are WANs Necessary? 5
The Evolving Enterprise 5
Businesses and Their Networks 5
Small Office (Single LAN) 6
Campus (Multiple LANs) 6
Branch (WAN) 8
Distributed (Global) 9
The Evolving Network Model 11
The Hierarchical Design Model 11
The Enterprise Architecture 13
WAN Technology Concepts 17
WAN Technology Overview 17
WAN Physical Layer Concepts 18
WAN Data Link Layer Concepts 23
WAN Switching Concepts 26
WAN Connection Options 29
WAN Link Connection Options 29
Dedicated Connection Link Options 31
Circuit-Switched Connection Options 32
Packet-Switched Connection Options 35
Internet Connection Options 38
Choosing a WAN Link Connection 44
Summary 48
Labs 49
Check Your Understanding 50
Challenge Questions and Activities 54
Chapter 2 PPP 55
Objectives 55
Key Terms 55
Introducing Serial Communications 56
How Does Serial Communication Work? 56
Serial Communication Standards 59
TDM 61
Demarcation Point 66
Data Terminal Equipment and Data Communications Equipment 67
HDLC Encapsulation 72
Configuring HDLC Encapsulation 75
Troubleshooting Serial Interfaces 76
PPP Concepts 83
Introducing PPP 83
PPP Layered Architecture 84
PPP Frame Structure 87
Establishing a PPP Session 88
Establishing a Link with LCP 89
NCP Explained 95
PPP Configuration Options 97
PPP Configuration Commands 98
Verifying a Serial PPP Encapsulation Configuration 101
Troubleshooting PPP Encapsulation 102
PPP Authentication Protocols 108
Password Authentication Protocol 109
Challenge Handshake Authentication Protocol (CHAP) 110
PPP Encapsulation and Authentication Process 112
Configuring PPP with Authentication 115
Troubleshooting a PPP Configuration with Authentication 118
Summary 120
Labs 120
Check Your Understanding 122
Challenge Questions and Activities 126
Chapter 3 Frame Relay 127
Objectives 127
Key Terms 127
Introduction 128
Basic Frame Relay Concepts 128
Introducing Frame Relay 128
Virtual Circuits 134
Frame Relay Encapsulation 140
Frame Relay Topologies 141
Frame Relay Address Mapping 145
Configuring Frame Relay 152
Enabling Frame Relay Encapsulation 153
Configuring Static Frame Relay Maps 156
Advanced Frame Relay Concepts 159
Solving Reachability Issues 159
Frame Relay Subinterfaces 161
Paying for Frame Relay 162
Frame Relay Flow Control 166
Configuring Advanced Frame Relay...
Date de parution : 05-2008
Ouvrage de 704 p.