Cisco局域网交换技术:英文版

Cisco局域网交换技术:英文版
作 者: Kennedy Clark Kevin Hamilton
出版社: 人民邮电出版社
丛编项: CCIE职业发展系列
版权说明: 本书为公共版权或经版权方授权,请支持正版图书
标 签: Cisco
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作者简介

暂缺《Cisco局域网交换技术:英文版》作者简介

内容简介

■掌握像高速局域网技术、局域网分段。桥接。Catalyst命令行环境和VLAN等方面的关键基础主题。■利用有效的CiscoCatalyst设计,配置和疑难解析技术来改进校园网的性能。■从覆盖面很广的生成树协议中获益,其中包括解决常见生成树问题的宝贵信息。■掌握中继的概念和应用,包括ISL、802.10、LANE和MPOA。■理解何时以及如何利用Layer3交换技术来取得最大效益。■理解Catalyst6000系列中的Layer2和Layer3交换配置,其中涵盖了功能强大的MSFCNativeIOSMode。本书综合了在现代校园网中设计、利用和部署局域网交换设备及技术的最佳方法。本书分为六个部分,通过提供一系列已经证实的设计模型、实际实现解决方案和疑难解析策略,使我们了解了基本的交换概念范围之外的很多东西。第一部分讨论了重要的基础性问题,为后面的章节打下了基础。这一部分内容包括快速和吉比特以太网、路由选择和交换的比较、Layer2交换技术的类型、Catalyst命令行环境以及VLAN等。第二部分详细讨论了巳发布的生成树协议,其中包括常见问题、疑难解析以及像PortFast、UplinkFast、BackboneFast和PVST+这样的改进技术。第三部分讨论了中继线连接中的关键问题以及用来在校园网中承载多个VLAN的链路。所有的章节都专门讨论LANE和MPOA的问题。第四部分提供了像Layer3交换技术、VTP、CGMP和IGMP这样的高级特性。第五部分则讲述了实际的校园网设计以及实现过程中遇到的问题,你可以从该部分中局域网交换技术专家的建议中获益。最后一部分讨论了Catalyst6000/6500交换机系列中的问题,其中包括Layer3交换技术中功能强大的NativeIOSMode。本书的结构有利于读者加强对书中概念的理解,帮助读者准备CCIE考试。除了对高级交换技术问题的讨论,本书还包含了一些案例研究,以突出实际环境中的设计、实现和管理问题,同时还在每章的结尾给出了复习题和练习。

图书目录

Part 1 Foundational Issues 3

Chapter 1 Desktop Technologies 5

Legacy Ethernet 5

LAN Frames 10

Fast Ethernet 14

Gigabit Ethernet 24

Token Ring 29

Summary 3 2

Review Questions 32

Chapter 2 Segmenting LANs 95

Why Segment LANs? 35

Segmenting LANs with Repeaters 37

Segmenting LANs with Bridges 42

Segmenting LANs with Routers 46

Segmenting LANs with Switches 48

Summary 50

Review Questions 51

Chapter 3 Bridging Technologies 55

Transparent Bridging 55

Switching Modes 60

Token Ring Bridging 64

Token Ring Switching 73

Ethernet or Token Ring? 77

Migrating Token Ring to Ethernet 78

Summary 79

Review Questions 79

Chapter 4 Configuring the Catalyst 83

Catalyst 5000/6000 CLI Syntax Conventions 84

Catalyst 5000 Configuration Methods 84

Using the Catalyst 5000/6000 Command-Line Interface 89

Catalyst Password Ptotection 100

Catalyst Configuration File Management 102

Catalyst Image File Management 104

Redundant Supervisor Modules 106

Configuring Other Catalysts 108

Review Questions 110

Chapter 5 VLANs 113

What Is a VLAN? 113

VLAN Types 116

802. 1 Q: VLANs and Vendor Interoperability 121

Justifying the Need for VLANs 123

Moving Users in VLANs 128

Catalyst VLAN Conaguration 136

VMPS and Dynamic VLANs: Advanced Administration 144

Protocol Filtering 152

Review Questions 153

Part II Spanning Tree 157

Chapter 6 Understanding Spanning Tree 159

What Is Spanning Tree and Why Use Spanning Tree? 160

Two Key Spanning-Tree Ptotocol Concepts 164

Four-Step STP Decision Sequence 166

Three Steps of Initial STP Convergence 167

Five STP States 174

Three STP Timers 176

Mastering the show spantree Command 179

Two Types of BPDUs 183

Topology Change Process 187

Using Spanning Tree in Real-World Networks 192

Deterministic Root Bridge Placement 195

AII of This Per VLAN! 198

Exercises 199

Chapter 7 Advanced Spanning Tree 205

Typical Campus Design: A Baseline Network 205

STP Behavior in the Baseline Network: A Spanning Tree Review 208

Spanning Tree Load Balancing 220

Fast STP Convergence 249

Useful STP Display Commands 274

Per-VLAN Spanning Tree Plus 280

Disabling STP 287

Tips and Tricks: Mastering STP 289

Exercises 293

Pan III Trunking 299

Chapter 8 Trunking Technologies and Applications 901

Why Trunks? 301

Ethernet Trunks 306

FDDI Trunks and 802. 10 Encapsulation 326

ATM Trunks 330

Trunk Options 336

Review Questions 342

Chapter 9 Trunking with LAN Emulation 945

A Brief ATM Tutorial 346

LANZ: Theory of Operation 363

Configuration Concepts 387

Configuration Syntax 390

A Complete LANZ Network 396

Testing the LANB Configuration 398

Advanced LANS Issues and Features 402

Exercises 410

Chapter 10 Trunking with Multiprotocol Over ATM 415

Why Two ATM Modes? 415

MPOA Components and Model 418

MPOA Configuration 429

Sample MPOA Configuration 438

Troubleshooting an MPOA Network 441

Ensuring the ELANs Are Functional between the Source and the Destination 442

Review Questions 446

Pan IV Advanced Features 449

Chapter 11 Layer 3 Switching 451

Layer 3 Switching Terminology 451

The Imponance of Routing 453

Router-on-a-Stick 454

The RSM 462

When to Use the RSM 467

MLS 467

Switching Routers 502

MLS versus 8500s 506

Catalyst 6000 Layer 3 Switching 512

HSRP 513

Integration between Routing and Bridging 521

Review Questions 535

Chapter 12 VLAN Trunking Protocol 597

Understanding VTP 538

VTP Modes 544

The Working Mechanics of VTP 549

Configming VTP Mode 559

VTP Pruning: Advanced Traffic Management 567

Review Questions 570

Chapter 13 Multicast and Broadcast Services 573

CGMP/IGMP: Advanced Traffic Management 573

IGMP Snooping: Advanced Traffic Management 594

Broadcast Suppression: Advanced Traffic Management 594

Review Qaestions 598

Part V Real-World Campus Deelgn and Implementation 681

Chapter 14 Campus Design Models 609

Changing Traffic Patterns 603

Campus Design Terminology 606

Key Requirements of Campus Designs 613

Advantages of Rooting 614

Campus Design Models 616

General Recommendation: Multilayer Model 624

Switching Router (8500) MDFs 626

Exercises 639

Chapter 15 Campus Design Implementation 649

VLANs 643

Spanning Tree 660

Load Balancing 674

Routing/Layer 3 Switching 678

ATM 681

Campus Migrations 686

Server Farms 687

Additional Campus Design Recommendations 692

Review Questions 697

Chapter 16 Troubleshooting 699

Troubleshooting Philosophies 699

Catalyst Troubleshooting Tools 707

Logging 715

Chapter 17 Case Studies: Implementing Switches 717

The Design Scenario 718

Should the Flat Earth Model Be Used? 721

Design 1: Using MLS to Blend Layer 2 and Layer 3 Processing 725

Design 2: Maximizing Layer 3 with Catalyst 8500 Switching Routers 774

Summary 803

Pan V Catalyst 6000 Technology

Chapter 18 Layer 3 Switching and the Catalyst 6000/6500s 805

Catalyst 6000 Layer 2 Characteristics 805

MSM Layer 3 Switcking 806

MSFC Hybrid Mode Layer 3 Switching 812

MSFC Native IOS Mode Layer 3 Switching 820

Native IOS Mode Configuration 829

Useful Native IOS Mode Commands 836

Review Questions 839

Pan VI Appendix 841

Appendix A Answers to End of Chapter Exercises 843

Index 892