Fast Ethernet : dawn of a new network / Howard W. Johnson.

CONTENIDO
Chapter 1
ETHERNET 1
HOW ETHERNET GOT ITS NAME 1
EARLY DEVELOPMENT 3
Before Local Area Networks 3
The Ethernet Architecture 6
The Ethernet Control System 7
Commercial Development 11
STANDARDS 13
Who Published the Ethernet Standard 14
How the IEEE Works with Other Standards Bodies 16
Where Fast Ethernet Fits in the Picture 20
EVOLUTION 20
Thick Coax (Original Recipe) 22
Cheapernet 25
StarLAN and Hierarchical Wiring 27
10BASE-T Gets the Formula Right 29
Centralized Management 32
Bandwidth: The Need for More 33
ORIGIN OF FAST ETHERNET 36
Chapter 2
FAST ETHERNET 41
OVERVIEW 42
CSMA/CD 42
Basic Topology 43
Cables Supported 44
Use of External Transceiver 46
New Protocol Sublayers 49
Advanced Capabilities 50
PRODUCTS 53
Adapter Architecture 55
Repeater Architecture (Shared Architecture) 57
Switch Architecture 62
APPLICATION OF FAST ETHERNET 69
Implementing a Mixed 10/100 Mb/s Network 70
Implementing a Pure 100 Mb/s Network 75
NETWORK PERFORMANCE 81
Finding the Bottlenecks Is Hard 81
Characterizing a Network 83
Characterizing Part of a Network 84
Real Network Performance 89
Chapter 3
DETAILED GUIDE TO FAST ETHERNET 95
ORGANIZATION OF THE FAST ETHERNET STANDARD 96
CHANGES TO PREVIOUS CLAUSES 98
Changes Required by Auto-Negotiation 99
Changes to Timing Parameters of CSMA/CD MAC 99
Changes to Definitions, Abbreviations and References 99
100BASE-T INTRODUCTION (CLAUSE 21) 101
OSI Reference Model 101
Organization of T4 and X Clauses 105
Material Common to All Clauses 106
MEDIA INDEPENDENT INTERFACE (CLAUSE 22) 106
MB: New Features 107
MB: Options 108
MB: Applications 110
MB: Management Features 112
100BASE-T4 TRANSCEIVER (CLAUSE 23) 115
100BASE-T4: Distinguishing Features 116
100BASE-T4: Other Features 120
100BASE-T4: Frame Structure and Encapsulation 122
100BASE-T4: Options 124
100BASE-T4: Features Not Needed 125
100BASE-T4: Cables and Connectors 125
100BASE-T4: Exceptions to ISO 11801 Wiring Practice 128
100BASE-T4: Signal Levels, Comparison to 10BASE-T 129
100BASE-T4: Safety 129
100BASE-T4: Contusion with Telephone Wiring 130
100BASE-T4: 120-Q Wiring 131
100BASE-X TRANSCEIVER (CLAUSE 24) 133
100BASE-X: Relation to ANSI FDDI Standards 133
100BASE-X: Distinguishing Features 135
100BASE-X: Other Features 139
100BASE-X: Frame Structure and Encapsulation 141
100BASE-X: Options 142
100BASE-X: Features Not Needed 144
TX PMD (CLAUSE 25) 146
100BASE-TX: Cables and Connectors 146
100BASE-TX: Exceptions to ANSI TP-PMD 148
100BASE-TX: Signal Levels, Comparison to 10BASE-T 149
100BASE-TX: Safety 149
100BASE-TX: Confusion with Telephone Wiring 150
FX PMD (CLAUSE 26) 151
100BASE-FX: Cables and Connectors 152
100BASE-FX: Exceptions to ANSI Fiber-PMD 155
100BASE-FX: Signal Levels 155
100BASE-FX: Distances 155
100BASE-FX: Environmental Specifications 156
100BASE-FX: Use of Single-Mode Fiber 157
REPEATERS (CLAUSE 27) 158
100BASE-T Repeater: Distinguishing Features 161
100BASE-T Repeater: Other Features 167
100BASE-T Repeater: Options 169
AUTO-NEGOTIATION (CLAUSE 28) 170
Auto-Negotiation: Distinguishing Features 171
Auto-Negotiation: Other Features 173
Auto-Negotiation: Options 174
TOPOLOGY (CLAUSE 29) 176
Basic Model 1 Topologies (Single Collision Domain) 178
Bit Budget Calculation Method (Single Collision Domain) 179
Simplified Constraint System (Single Collision Domain) 185
Answers to Questions 186
MANAGEMENT (CLAUSE 80) 189
Purpose of Network Management 189
Structure of Network Management Applications 189
Fast Ethernet Network Management Features 191
Protocols for Network Management 192
Chapter 4
GENERIC CABLING 197
GENERIC WIRING ARCHITECTURE 199
HORIZONTAL CABLING 206
PREFERRED CABLE COMBINATIONS 208
CROSSOVER WIRING 209
ANSWERS TO FREQUENTLY ASKED QUESTIONS 211
Planning an Installation 211
About T4 215
About TX 218
About FX 220
Chapter 5
THE FUTURE OF FAST ETHERNET 225
SWITCHING 226
FULL-DUPLEX ETHERNET 230
MULTIMEDIA 232
FLOW CONTROL 237
Full Duplex 238
Link-Level Flow Control 238
Bandwidth Allocation 239
Binary Logarithmic Arbitration Method 241
Priority Access Control Enabled 242
LINK TRANSMISSION TECHNOLOGY 243
ISO-ETHERNET 244
WIDE AREA NETWORKING 246
Chapter 6
COMPETING NETWORKS 253
FDDI 254
FDDI Overview 254
FDDI Strong Points 255
FDDI Weak Points 256
ATM 257
ATM Overview 258
ATM Strong Points 260
ATM Weak Points 261
DPAM 261
DPAM Overview 262
DPAM Strong Points 263
DPAM Weak Points 264
FIBER CHANNEL 266
FAST ETHERNET 266
Fast Ethernet Overview 267
Fast Ethernet Strong Points 268
Fast Ethernet Weak Points 269
SUMMARY OF HIGH-SPEED LANS 270
Chapter 7
COLLISION DOMAINS: EXTRA FOR EXPERTS 273
WHAT IS A COLLISION DOMAIN? 273
HOW MAC TIMING WORKS 274
WHY THE DIAMETER OF A COLLISION DOMAIN MATTERS 276
Chapter 8
REFERENCE MATERIALS 281
BOOKS ABOUT ETHERNET 281
BOOKS ABOUT OTHER HIGH-SPEED LANS 282
GENERAL BOOKS ABOUT LAN TECHNOLOGY 282
TERMS AND ACRONYMS USED IN THIS BOOK 284
ORDERING ETHERNET DOCUMENTS 291
SOURCES 292
STANDARDS CLOSELY RELATED TO FAST ETHERNET 296
CLAUSES OF IEEE STD 802.3 296
RECENT SUPPLEMENTS TO IEEE STD 802.3 297
INDEX 299