组建Cisco多层交换网络:英文版

组建Cisco多层交换网络:英文版
作 者: Karen Webb
出版社: 人民邮电出版社
丛编项: Cisco职业认证培训系列
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: 企业 互连网络 英文
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作者简介

暂缺《组建Cisco多层交换网络:英文版》作者简介

内容简介

本书不但指导读者如何利用第2层设备(如交换机)和第3层设备(如路由器)来组建企业园区网,还进一步教给读者在园区网组建好之后如何优化路由、如何确保网络的可用性以及如何为多点广播应用做准备。本书内容全面,读者通过学习书中深层的案例分析和配置示例,可以完成以下的工作:·选择并连接能够实现园区网连通性的Cisco产品;·通过冗余链路和虚拟缺省路由器来确保网络的可用性;·启用多层交换以帮助进行线速数据传输;·通过实施Cisco热备份路由器协议(HSRP)来确保路由的可靠性;·实施网络服务以获得在多点广播组中的成员身份;·通过实施网络访问规则来控制网络流量。本书适用于要为企业实施多层交换网络的网络管理员。同时,本书也是对"组建Cisco多层交换网络(BCMSN)"课程的有益补充,可以帮助读者顺利通过CCNP或CCDP认证过程中的相应认证考试

图书目录

Table of Contents

Chapter 1 Overview of a Campus Network 3

Campus Network Overview 4

Traditional Campus Networks 4

Canent Calnpus Networks 8

The Emerging Canlpus Network 11

Emerging Campus Structure 11

Switching Technologies 13

Basic Layer Terminology 13

Layer 2 Switchlng 14

Benefits of Routing 16

Layer 3 Switching 18

Layer 4 Switching 19

Multilayer Switching 20

The Hierarchical Model 20

The Access Layer 21

The Disuibution Layer 21

The Core Layer 22

Choosing a Cisco Product 22

The Building Block Approach 24

The Switch Block 25

The Core Block 28

Campus Network Availability Example 35

Summary 39

Review Questions 40

Written Exercises: Overview of a Campus Network 41

Task 1: Describing Layer 2, 3, and 4 and Multilayer Switching Functions 41

Task 2: Identifying the Switch Layer Solution for a Given Network

Requirement 42

Task 3 : Given a Set of User Requirements, Identify the Cooect Cisco Product

Solution 43

Task 1 Answers: Describing Layer 2, 3, and 4 and Multilayer Switching

Functions 44

Task 2 Answers: Identifying the Switch Layer Solution for a Given Network

Requirement 45

Task 3 Answers: Given a Set of User Requirements, Identify the Conect Cisco

Ptoduct Solution 46

Chapter 2 Connecting the Switch Block 49

Introduction to Connecting the Switch Block 49

Cable Media Types 50

Ethernet 50

Fast Ethemet 51

Gigabit Ethemet 54

Example of Subscribing Links 56

Cabling Switch Block Devices 60

Connecting to the Console Port on an IOS Command-Based Switch 61

Connecting to the Console Port on a Catalyst 5000 Series Switch 62

Connecting to an Ethemet Port 62

Configuring Connectivity within the Switch Block 63

Limiting Switch Access Using Passwords 64

Uniquely Defming the Switch 66

Configuring Switch Remote Accessibility 67

Uniquely Identifying Pons 68

Defining Link Speed 69

Maximizing Data Transmission 69

Verifying Connectivity 71

Summary 72

Review Questions 73

Case Study: Connecting the Switch Block 73

Scenario 73

Command List 75

Task 1 : Conagure the Access Layer Connection to the PC 77

Task 2: Configure the Connections Between the Access Layer Switches and the

Distribution Layer Switches 79

Task 3 : Configure the Connections from the Distribution Layer Switches to the

Core Layer Switches 82

Chapter 3 Defining Common Workgroups with VLANs 87

VLANs 87

Defming VLAN Boundaries 90

Establishing VLAN Memberships 93

Configuring VLANs 94

Verifying VLAN Configuration 95

VLAN Identification 96

Link Types 96

VLAN Frame Identification Methods 99

Trunk Negotiation 104

Configuring a Trunk Link 104

VLAN Trunking Protocol 106

Adding a Switch to an Existing Domain 109

VTP Advenisements 110

VTP Configuration Tasks and Guidelines 112

VTP Pruning 115

Summary 118

Review Questions 118

Case Study: Defining Common Workgroups 118

Scenario 119

Command List 120

Task 1 : Configure the Access Layer Devices widl VTP Domain, VLANs, and

Trunlcs 121

Task 2: Configuriog the Distribution Layer Switches with VTP Domain and

Trunks 125

Chapter 4 Managing Redundant Links 131

Overview of Transparent Bridging 131

Inuoduction to the Spanning-Tree Ptotocol 134

Bridge Protocol Data Units 135

Electing a Root Bridge 137

Forming an Association with the Root Bridge 137

Spanning-Tree Pon States 139

Spanning-Tree Timers 140

Handling Topology Changes in Sp

Spanning Tree Example 143

Enabling Spanning Tree 144

Virtual LANs alld Spanning Tree 147

Per-VLAN Spanning Tree 147

Common Sp

Per-VLAN Spanning Tree Plus 149

Scaling SP

Establishing the Root Bridge 151

Determining the Best Loop-Free Path to the Root 153

Modifying Spanning-Tree Timers 158

EtherChannel 159

Configuring UplinkFast 165

Configuring BackboneFast 168

Summary 170

Review Questions 170

Case Study: Managing Redundant Links 171

Scenario 171

Command List 173

Task 1 : Verify Operation of the Spanning-Tree Protocol 174

Task 2 : Configure the

Task 3 : Configure Fast EtherChannel 178

Task 4: Conagure PortFast and UplinkFast 182

Chapter 5 Inter-VLAN Routing 187

Inter-VLAN Routing Issues and Solutions 187

Isolated Broadcast Domains 188

Finding the Route 189

Supponing Multiple VLAN Traffic 189

Distribution Layer Topology 192

Extemal Route Processors 192

Intemal Route Ptocessors 193

Configuring Inter-VLAN Routing 196

Loading alld Accessing dle Route Processor 197

Enabling an m Routing Ptotocol 198

Configuring an Interface 199

Defining the Default Gateway 203

Testing dle Link 204

Summary 205

Review Questions 206

Case Study: Inter-VLAN Routing 206

Scenario 206

Command List 208

Task I : Perform Basic Router Setup 210

Task 2: Configure Routing on the Route Switch Module 211

Task 3: Verify IP Addresses and Establish a Default Gateway for the

Workstation 213

Chapter 6 Improving IP Routing PeHormance with Multilayer Switching 217

Multilayer Switching Fundamentals 217

Hardware and SoRware Requirements 219

MLS Components 219

How MLS Works 220

Conmmands That Disable MLS 226

Configuring the Multilayer Switch Route hocessor 227

Globally Enabling MLS on the Route Processor 227

Assigning an MLS Interface to a

Enabling MLS on an Interface 229

Creating a Null Domain 230

Assigning an MLS Management Interface 230

Assigning a VLAN m to an Interface on an Extemal Router 231

Verifying the Configuration 232

Applying Flow Masks 233

Destination-m Flow Mask 234

Source-Destination-m Flow Mask 234

IP-Flow Mask 235

Output Access Lists and Flow Masks 235

Input Access Lists and Flow Masks 237

Configuring the Multilayer Switch Switching Engine 238

Enabling IVIIJS on the Switch 238

Aging Out Cache EnRies on dle Switch 239

Managing ShoH-Lived Flows 239

Adding Extemal Router MLS IDs 240

Verifying the Configuration 242

MLS Topology Examples 244

Topology Example 244

Topology Changes and Routing Impacts 245

Topology Quiz 246

Other Layer 3 Switching Technologies 247

Summary 248

Review Questions 248

Case Study: Improving m Routing Perfonnance with Multilayer Switching 249

Scenario 249

Command List 251

Task 1: Configure the Distribution Layer Route Processor to Participate in

Multilayer Switching 252

Task 2: Configure the Distribution Layer Switching Engine to Participate in

Multilayer Switching 254

Task 3: Verify MLS Flow Cache 256

Chapter 7 Configuring HSRP for Fault-Tolerant Routing 259

HSRP Overview 259

Routing Issues in a Redundant Network 260

Solution to Routing Issues: Hot Standby Routing Ptotocol 263

HSRP Group Members 263

HSRP Operations 266

Locating the Virtual Router MAC Address 267

HSRP Messages 269

HSRP States 270

Configuring HSRP 272

Assigning HSRP Standby Ptiority 273

Configuring HSRP Standby heempt 274

Configuring HSRP Over Tnlnk Links 275

Conaguring Hello Message Timers 276

HSRP Interface Tracking 276

Displaying the Status of HSRP 278

S ummary 280

Review Questions 280

Case Study 281

Scenario 281

Command List 282

Task 1: Configure HSRP 282

Task 2: Ensure the Role of the Active Router by Assigning a Pteempt Status 285

Chapter 8 Multicast Overview 287

InRoduction to Multicasting 287

Unicast TraHic 288

Broadcast Traffic 290

Multicast Traffic 291

IP Multicast Characteristics 292

Addressing in an IP Multicast Environment 292

IP Multicast Address Suucture 293

Mapping MAC Addresses to m Multicast Addresses 294

Managing Multicast TraHic in a Canlpus Network 295

Subscribing and Maintaining Groups 296

IGMPv1 297

IGMPv2 299

Handling Multicast Traffc in a Switch 305

Routing Multicast Traffic 306

Distribution Trees 307

Managing the Scope of Delivery 310

Multicast Routing Protocols 312

Dense Mode Routing Protocols 313

Sparse Mode Routing Ptotocols 316

Summary 317

Review Questions 318

Written Exercises : Multicasting Overview 318

Task 1 : Transnlission Characteristics 319

Task 2 : Reconcile Multicast IP Addresses to Ethemet Addresses 319

Task 3 : The Functional Differences Between IG

Task 4 : The Setup Ptocedure in Which Routers and Switches Facilitate Multicast

Traffic 323

Task 1 Answers: Transmission Characteristics 323

Task 2 Answers: Reconcile Multicast m Addresses to Edlemet Addresses 324

Task 3 Answers: The Functional Differences Between IG

Task 4 Answers: The Setup Procedure in Which Routers and Switches Facilitate

Multicast Traffic 325

Chapter 9 Configuring IP Multicast 327

Planning for Multicasting 327

End-to-End IP Multicasting 329

Configuring m Multicast Routing 330

Enabling Multicasting 331

Configuring Multicast Interfaces 331

Verifying Pnvl Configuration 3 34

Selecting a Designated Router 335

Displaying a PDvl Neighbor 336

Configuring a Rendezvous Point 337

Defining the Scope of Delivery 341

Verining Molticast Configmation 342

Enhancing the Route Ptocessor 343

Joining a Multicast Group 343

Manipulating the IGMP Version 344

Enabling CGlvIP 345

Enabling CGMP on the Router 345

Enabling CGMP on the Switch 346

Enabling CGMP Leave 347

Verifying CGMP Configuration 348

Summary 349

Review Questions 350

Case Study: Configuring IP Multicast 351

Scenario 351

Command List 352

Task 1 : Configure the Primary Disuibution Router to Forward Multicast Traffic

Using the PIM DM Ptotocol 353

Task 2: Configure Multicast Traffic Using PIM SM 358

Task 3 : Enable ccFvm 359

Chapter 10 Controlling Access to the Campus Network 365

Defmition of an Access Policy 365

Applying Policies in a Hierarchical Model 366

Managing Network Devices 368

Physical Security 3 68

Assigning Passwords 368

Controlling Session Timeouts 370

Ptivilege IJeveIS 371

Banner Messages 373

Controning Vinual Terminal kccess 373

Controning

Access Layer Policy 376

Port Security 376

Disuibution Layer Policy 378

Controlling Infonnation with Filters 378

Filtering Routing Update Traffic 3 82

Core Layer Policy 3 85

Summary 3 85

Review Questions 386

Appendix A Answers to Review Questions 389

Chapter 1 Answers to Review Questions 389

Chapter 2 Answers to Review Questions 391

Chapter 3 Answers to Review Questions 392

Chapter 4 Answers to Review Questions 393

Chapter 5 Answers to Review Questions 394

Chapter 6 Answers to Review Quesdons 396

Chapter 7 Answers to Review Questions 397

Chapter 8 Answers to Review Questions 399

Chapter 9 Answers to Review Questions 400

Chapter IO Answers to Review Questions 401

Appendix B Switching Architectures and Functional Descriptions 405

Switching Terms and Defmitions 405

B ackplane 405

Local Switching 405

Oversubscription 406

Nonblocking 406

Queuing 406

Switching Decisions 406

Switching Fabric 407

Switching Components 407

Congestion Management 407

Switching Implementations 410

Central Switching Decision 411

Distributed Switching Decision 411

Multilayer Switching 411

Cisco Express Forwarding 412

Cisco Express Forwarding Modes 413

Catalyst 4000 Series Family 415

Catalyst 5000 Series Family 416

Catalyst 6000 Series Falnily 417

Catalyst 8500 Series Family 418

Index 420