Networking Explained (eBook)

William M. Hancock PhD CISSP CISM, Michael Gallo (Autoren)

eBook Download: PDF

2001 | 2. Auflage
656 Seiten
Elsevier Science (Verlag)
9780080512594 (ISBN)

Infos

Networking Explained 2E offers a comprehensive overview of computer networking, with new chapters and sections to cover the latest developments in the field, including voice and data wireless networking, multimedia networking, and network convergence.

Gallo and Hancock provide a sophisticated introduction to their subject in a clear, readable format. These two top networking experts answer hundreds of questions about hardware, software, standards, and future directions in network technology.

Wireless networks
Convergence of voice and data
Multimedia networking

Inhalt

Front Cover 1
Networking Explained 2
Copyright Page 5
Contents 8
Preface 14
Chapter 1. Fundamental Concepts of Computer Networks and Networking 18
Concepts and Related Issues of Computer Networking 19
Definition and Components of Computer Networks 20
Network Protocols 22
Network Media 23
Applications Versus Application Protocols 23
Interoperability 26
Internet, internet (Internetwork), Intranet, Extranet 26
LAN, MAN, WAN, PAN, GAN, SAN 27
Decentralized Versus Centralized Versus Distributed Systems 31
Client/Server, Peer-to-Peer, Servent, and WWW Network Models 32
Network Appliances 37
Serial and Parallel Communications 38
Synchronous, Asynchronous, and Isochronous Communications 39
Simplex, Half-Duplex, and Full-Duplex Communications 41
Network Standards 42
Chapter 2. Network Topologies, Architectures, and the OSI Model 48
Concept of Network Topologies 48
Point-to-Point Networks: Star, Loop, Tree 49
Broadcast Networks: Bus, Ring, Satellite 52
Multidrop Networks 55
Circuit- and Packet-Switched Networks 55
Network Architectures 59
The OSI Model 59
Connection-Oriented and Connectionless Services 65
The TCP/IP Model 67
Chapter 3. The Internet and TCP/IP 72
Definition of the Internet 73
Internet History 73
The Current Commodity Internet 79
Other Internet Initiatives: vBNS/vBNS+, Internet2, Next Generation Internet 81
Internet Administration, Governance, and Standards 83
History of TCP/IP 85
TCP/IP Application Layer Protocols: SMTP, MIME, POP, IMAP, TELNET, FTP, and HTTP 88
TCP/IP Transport Layer Protocols: UDP and TCP 118
TCP/IP Network Layer Protocol: IP 130
IPv4 Addresses and Subnetting 135
IP Address Assignments 140
IP Name Resolution 143
IPv6 146
Internet Services, Resources, and Security 154
Chapter 4. Physical Layer Concepts 156
Physical Layer Issues 156
Analog Versus Digital Communications 159
Bandwidth Versus Throughput and Data Rate Versus Baud Rate 164
Noise 165
Shannon’s Limit 166
Multiplexers and Multiplexing Strategies 167
Switching Strategies 172
Physical and Electrical Characteristics of Wire 173
UTP, STP, and IBM Cable 178
Coaxial Cable 181
Fiber-Optic Cable 183
Wireless Media 187
Satellite Communications 193
Chapter 5. Data Link Layer Concepts and IEEE Standards 198
Data Link Layer Overview and IEEE’s Framing Prespective 198
Framing 201
Ethernet/802.3 Frames 202
Flow Control and Flow Control Protocols 204
Error Control 213
MAC Sublayer 219
Random Access and Token Passing Protocols 221
Data Prioritization and Quality of Service (QoS) 225
Chapter 6. Network Hardware Components (Layers 1 and 2) 230
Connectors 230
Transceivers 233
Repeaters 236
Media Converters 239
Network Interface and PC Cards 239
Bridges 243
Switches 248
Chapter 7. WANS, Internetworking, and Network Layer Concepts and Components 254
The Concept of Internetworking 254
WAN Circuits 258
SONET 265
Layer 3 Concepts and Issues 267
Router Protocols and Routing Algorithms 269
Routing Versus Switching 285
Virtual Private Networks (VPNs) 288
Multiprotocol Label Switching (MPLS) 300
Chapter 8. Ethernet, Ethernet, and More Ethernet 304
History of Ethernet 304
Ethernet Versus IEEE 802.3 305
The Initial IEEE 802.3 Protocol: 10 Mbps Ethernet 307
10-Mbps Ethernet Performance Issues: Network Diameter and Collision Domain 310
Partitioning, Switched Ethernet, and Virtual LANs 320
100 Mbps Ethernet: Fast Ethernet and 100VG-AnyLAN 330
1 Gigabit Ethernet 340
10 Gigabit Ethernet 349
IsoEthernet 352
Chapter 9. Token Ring 354
Definition and Operation 354
Frame Formats 359
Priority Scheduling 359
Monitor Stations 361
Physical Layer Issues 361
Token Ring Versus Token Bus 362
Advantages and Disadvantages of Token Ring Networks 363
Switched, Dedicated, and Full-Duplex Token Ring 363
High-Speed Token Ring 365
Token Ring’s Future 366
Chapter 10. Fiber Distributed Data Interface (FDDI) 368
General Information 368
Physical Layer Issues 370
Data Link Layer Issues 373
Operation and Configuration Issues 374
FDDI and Ethernet/802.3 378
FDDI and ATM 380
CDDI 380
Future of FDDI 381
Chapter 11. Integrated Services Digital Network (ISDN) 382
History of ISDN 382
General Overview and Components 385
Channel Types 389
BRIs, PRIs, and SPIDs 390
Line Sets and Feature Sets 392
ISDN Protocols 395
AO/DI and B-ISDN 397
Alternative Implementation Strategies 398
Chapter 12. Frame Relay 400
Frame Relay Overview 400
Frame Relay’s Physical Layer: Virtual Circuits and Committed Interface Rates (CIRs) 401
Technical Aspects and Operation of Frame Relay 411
Frame Relay’s Data Link Layer 412
Voice Over Frame Relay 419
Frame Relay Versus ATM, SMDS, and Gigabit Ethernet 420
Frame Relay in the News 421
Chapter 13. Switched Multimegabit Data Service (SMDS) 424
SMDS Overview 424
SMDS and Local and Inter-Exchange Carriers 425
The DQDB and SMDS Protocols 427
SMDS Addressing 433
SMDS Applications 435
SMDS Versus Frame Relay and ATM 435
Current Status and Future of SMDS 437
Chapter 14. Asynchronous Transfer Mode (ATM) 440
Definition and History of ATM 440
General Concepts and Operation of ATM 441
ATM Interfaces and the Anchorage Accord 443
ATM Components and Addressing 446
ATM Cells, Switches, and Virtual Connections 447
ATM Adaptation Layer (AAL) 452
Data Types Insights 454
ATM Versus Gigabit Ethernet 455
ATM in LAN Environments 456
ATM, Frame Relay, and SONET 458
Chapter 15. Dialup and Home Networking 460
Dialup Networking Concepts and Issues 460
Modem Concepts: Analog and 56K Modems 463
xDSL Connections 469
Cable Modem Connections 475
Home-Based Internet Connections 479
Home-Based LANs: Concepts and Issues 483
Chapter 16. Network Security Issues 488
Network Security Overview 488
Threat Assessment and Risk Analysis 489
Social Engineering, Denial of Service, and Applications 494
Network Security Preparations and Measures 497
Firewalls 500
Cryptography and Encryption: DES, AES, RSA, PGP 507
Authentication: Digital Certificates, Smart Cards, and Kerberos 518
Internet Security and Virtual Private Networks (VPNs) 520
Chapter 17. Network Convergence 522
Network Convergence Overview 522
Impact of Convergence on Network Media 526
Network Convergence and Multimedia 533
Impact of Convergence on Businesses 538
Network Convergence at Home 544
Network Convergence and Voice over IP (VoIP) 545
Chapter 18. Wireless Networking 554
Wireless Communications Overview and History 554
Wireless Data Transmission Methods 556
Cellular Telephone Networks 557
Paging Networks 567
Wireless Data Networks 569
Bluetooth Concepts Versus Wireless LANs 575
Advantages and Disadvantages of Wireless Communications 576
The Future of Wireless Communications 577
Appendix A: Vendor Ethernet/802.3 Prefixes 580
Appendix B: Using Parity for Single-Bit Error Correction 582
Appendix C: Guidelines for Installing UTP Cable 584
Appendix D: Network Design and Analysis Guidelines Network Politics
Appendix E: X.25 592
Glossary 598
Bibliography 648
Index 670

Produkt-Details

• Erscheint lt. Verlag: 17.12.2001
• Sprache: englisch
• Themenwelt: Sachbuch/Ratgeber
• Themenwelt: Mathematik / Informatik ► Informatik ► Grafik / Design
• Themenwelt: Mathematik / Informatik ► Informatik ► Netzwerke
• ISBN-13: 9780080512594 / 9780080512594