Introduction xxii
CHAPTER 1 Introduction to Computer Networks 2
Chapter Outline 3
Objectives 3
Key Terms 3
1-1 Introduction 5
1-2 Network Topologies 7
Section 1-2 Review 11
Test Your Knowledge 11
1-3 The OSI Model 12
Section 1-3 Review 14
Test Your Knowledge 15
1-4 The Ethernet LAN 16
IP Addressing 20
Section 1-4 Review 22
Test Your Knowledge 23
1-5 Home Networking 24
Securing a Home Network 33
IP Addressing in a Home Network 34
Section 1-5 Review 36
Test Your Knowledge 37
1-6 Assembling an Office LAN 38
Section 1-6 Review 43
Test Your Knowledge 43
1-7 Testing and Troubleshooting a LAN 44
Section 1-7 Review 47
Test Your Knowledge 47
Summary 48
Questions and Problems 48
Certification Questions 56
CHAPTER 2 Physical Layer Cabling: Twisted-Pair 60
Chapter Outline 61
Objectives 61
Key Terms 61
2-1 Introduction 63
2-2 Structured Cabling 64
Horizontal Cabling 67
Section 2-2 Review 70
Test Your Knowledge 70
2-3 Unshielded Twisted-Pair Cable 71
Shielded Twisted-Pair Cable 74
Section 2-3 Review 75
Test Your Knowledge 75
2-4 Terminating CAT6/5e/5 UTP Cables 76
Computer Communication 78
Straight-through and Crossover Patch Cables 80
Section 2-4 Review 87
Test Your Knowledge 88
2-5 Cable Testing and Certification 89
Section 2-5 Review 93
Test Your Knowledge 93
2-6 10 Gigabit Ethernet over Copper 94
Overview 94
Alien Crosstalk 95
Signal Transmission 96
Section 2-6 Review 97
Test Your Knowledge 97
2-7 Troubleshooting Cabling Systems 98
Installation 98
Cable Stretching 99
Cable Failing to Meet Manufacturer Specifications 99
CAT5e Cable Test Examples 100
Section 2-7 Review 106
Test Your Knowledge 106
Summary 107
Questions and Problems 107
Certification Questions 115
CHAPTER 3 Physical Layer Cabling: Fiber Optics 118
Chapter Outline 119
Objectives 119
Key Terms 119
3-1 Introduction 120
3-2 The Nature of Light 123
Graded-Index Fiber 127
Single-Mode Fibers 127
Section 3-2 Review 128
Test Your Knowledge 129
3-3 Fiber Attenuation and Dispersion 129
Attenuation 129
Dispersion 131
Dispersion Compensation 132
Section 3-3 Review 133
Test Your Knowledge 133
3-4 Optical Components 134
Intermediate Components 135
Detectors 136
Fiber Connectorization 138
Section 3-4 Review 139
Test Your Knowledge 140
3-5 Optical Networking 140
Defining Optical Networking 141
Building Distribution 143
Campus Distribution 147
Section 3-5 Review 150
Test Your Knowledge 150
3-6 Safety 151
Section 3-6 Review 152
Test Your Knowledge 152
Summary 153
Questions and Problems 153
Certification Questions 156
CHAPTER 4 Wireless Networking 158
Chapter Outline 159
Objectives 159
Key Terms 159
4-1 Introduction 160
4-2 The IEEE 802.11 Wireless LAN Standard 161
Section 4-2 Review 169
Test Your Knowledge 170
4-3 802.11 Wireless Networking 170
Section 4-3 Review 180
Test Your Knowledge 181
4-4 Bluetooth, WiMAX, RFID, and Mobile Communications 181
Bluetooth 181
WiMAX 184
Radio Frequency Identification 185
Mobile (Cellular) Communications 188
Section 4-4 Review 189
Test Your Knowledge 189
4-5 Configuring a Point-to-Multipoint Wireless LAN: A Case Study 190
Step 1. Conducting an Antenna Site Survey 191
Step 2. Establishing a Point-to-Point Wireless Link to the Home Network 191
Steps 3 and 4. Configuring the Multipoint Distribution and Conducting an RF Site Survey 192
Step 5. Configuring the Remote Installations 194
Section 4-5 Review 195
Test Your Knowledge 195
Summary 196
Questions and Problems 196
Critical Thinking 200
Certification Questions 201
CHAPTER 5 Interconnecting the LANs 204
Chapter Outline 205
Objectives 205
Key Terms 205
5-1 Introduction 206
5-2 The Network Bridge 207
Section 5-2 Review 212
Test Your Knowledge 213
5-3 The Network Switch 213
Hub and Switch Comparison 216
Managed Switches 218
Multilayer Switches 223
Section 5-3 Review 224
Test Your Knowledge 224
5-4 The Router 225
The Router Interface: Cisco 2800 Series 226
Section 5-4 Review 229
Test Your Knowledge 230
5-5 Interconnecting LANs with the Router 230
Gateway Address 233
Network Segments 233
Section 5-5 Review 233
Test Your Knowledge 234
5-6 Configuring the Network Interface: Auto-negotiation 234
Auto-negotiation Steps 235
Full-Duplex/Half-Duplex 235
Section 5-6 Review 237
Test Your Knowledge 237
5-7 The Console Port Connection 238
Configuring the HyperTerminal Software (Windows) 240
Configuring the ZTerm Serial Communications Software (Mac) 242
Section 5-7 Review 244
Test Your Knowledge 244
Summary 245
Questions and Problems 245
Critical Thinking 250
Certification Questions 251
CHAPTER 6 TCP/IP 254
Chapter Outline 255
Objectives 255
Key Terms 255
6-1 Introduction 256
6-2 The TCP/IP Layers 257
The Application Layer 258
The Transport Layer 260
The Internet Layer 264
The Network Interface Layer 266
Section 6-2 Review 267
Test Your Knowledge 267
6-3 Number Conversion 268
Binary-to-Decimal Conversion 268
Decimal-to-Binary Conversion 270
Hexadecimal Numbers 271
Section 6-3 Review 274
Test Your Knowledge 274
6-4 IPv4 Addressing 274
Section 6-4 Review 278
Test Your Knowledge 278
6-5 Subnet Masks 278
Section 6-5 Review 285
Test Your Knowledge 286
6-6 CIDR Blocks 286
Section 6-6 Review 289
Test Your Knowledge 289
6-7 IPv6 Addressing 290
IPv6 CIDR 294
Section 6-7 Review 295
Test Your Knowledge 295
Summary 296
Questions and Problems 296
Critical Thinking 305
Certification Questions 306
CHAPTER 7 Introduction to Switch Configuration 310
Chapter Outline 311
Objectives 311
Key Terms 311
7-1 Introduction 312
7-2 Introduction to VLANs 313
Virtual LANs 313
Section 7-2 Review 315
Test Your Knowledge 315
7-3 Introduction to Switch Configuration 316
Hostname 316
Enable Secret 317
Setting the Line Console Passwords 317
Static VLAN Configuration 319
Networking Challenge: Switch Configuration 323
Section 7-3 Review 323
Test Your Knowledge 324
7-4 Spanning-Tree Protocol 324
Section 7-4 Review 326
Test Your Knowledge 327
7-5 Network Management 327
Configuring SNMP 328
Section 7-5 Review 331
Test Your Knowledge 331
7-6 Power over Ethernet 332
Section 7-6 Review 334
Test Your Knowledge 335
7-7 Switch Security 335
Switch Port Security 337
STP Special Features 338
Section 7-7 Review 340
Test Your Knowledge 340
Summary 341
Questions and Problems 341
Critical Thinking 348
Certification Questions 348
CHAPTER 8 Introduction to Router Configuration 352
Chapter Outline 353
Objectives 353
Key Terms 353
8-1 Introduction 354
8-2 Router Fundamentals 355
Layer 3 Networks 356
Section 8-2 Review 362
Test Your Knowledge 362
>) 363
The User EXEC Mode 363
Router Configuration Challenge: User EXEC Mode 366
Section 8-3 Review 368
Test Your Knowledge 369
8-4 The Router's Privileged EXEC Mode (Router#) 369
Hostname 371
Enable Secret 371
Setting the Line Console Passwords 372
FastEthernet Interface Configuration 373
Serial Interface Configuration 374
Router Configuration Challenge: Privileged EXEC Mode 376
Section 8-4 Review 378
Test Your Knowledge 379
Summary 380
Questions and Problems 380
Critical Thinking 385
Certification Questions 387
CHAPTER 9 Routing Protocols 390
Chapter Outline 391
Objectives 391
Key Terms 391
9-1 Introduction 392
9-2 Static Routing 393
Gateway of Last Resort 400
Configuring Static Routes 400
Networking Challenge: Static Routes 403
Section 9-2 Review 404
Test Your Knowledge 404
9-3 Dynamic Routing Protocols 405
Section 9-3 Review 406
Test Your Knowledge 407
9-4 Distance Vector Protocols 407
Section 9-4 Review 410
Test Your Knowledge 410
9-5 Configuring RIP and RIPv2 410
Configuring Routes with RIP 412
Configuring Routes with RIPv2 417
Networking Challenge: RIPv2 418
Section 9-5 Review 419
Test Your Knowledge 420
9-6 Link State Protocols 420
Section 9-6 Review 423
Test Your Knowledge 423
9-7 Configuring the Open Shortest Path First (OSPF) Routing Protocol 424
Networking Challenge: OSPF 429
Section 9-7 Review 430
Test Your Knowledge 430
9-8 Advanced Distance Vector Protocol: Configuring Enhanced Interior Gateway
Routing Protocol (EIGRP) 430
Configuring Routes with EIGRP 431
Networking Challenge: EIGRP 436
Section 9-8 Review 437
Test Your Knowledge 437
9-9 IPv6 Routing 438
IPv6 Static Routing 438
RIP for IPv6 438
OSPF for IPv6 439
EIGRP for IPv6 440
Section 9-9 Review 440
Test Your Knowledge 440
Summary 442
Questions and Problems 442
Critical Thinking 455
Certification Questions 456
CHAPTER 10 Internet Technologies: Out to the Internet 458
Chapter Outline 459
Objectives 459
Key Terms 459
10-1 Introduction 461
10-2 The Line Connection 463
Data Channels 464
Point of Presence 465
Section 10-2 Review 468
Test Your Knowledge 468
10-3 Remote Access 468
Analog Modem Technologies 469
Cable Modems 470
xDSL Modems 470
Remote Access Server 472
Section 10-3 Review 475
Test Your Knowledge 475
10-4 Metro Ethernet/Carrier Ethernet 476
Ethernet Service...