Home>Store

Scaling Networks v6 Companion Guide

eBook (Watermarked)

  • Your Price: $49.87
  • List Price: $58.67
  • Includes EPUB and PDF
  • About eBook Formats

    • This eBook includes the following formats, accessible from yourAccountpage after purchase:

    ePubEPUBThe open industry format known for its reflowable content and usability on supported mobile devices.

    Adobe ReaderPDFThe popular standard, used most often with the freeAdobe® Reader®software.

    This eBook requires no passwords or activation to read. We customize your eBook by discreetly watermarking it with your name, making it uniquely yours.

Add to cart

Also available inother formats.

Register your productto gain access to bonus material or receive a coupon.

Description

  • Copyright 2018
  • Dimensions: 8" x 9-1/8"
  • Pages: 672
  • Edition: 1st
  • eBook (Watermarked)
  • ISBN-10: 0-13-476089-1
  • ISBN-13: 978-0-13-476089-6

Scaling Networks v6 Companion Guideis the official supplemental textbook for the Scaling Networks v6 course in the Cisco Networking Academy CCNA Routing and Switching curriculum.

TheCompanion Guideis designed as a portable desk reference to use anytime, anywhere to reinforce the material from the course and organize your time.

The book’s features help you focus on important concepts to succeed in this course:

·Chapter objectives–Review core concepts by answering the focus questions listed at the beginning of each chapter.

·Key terms–Refer to the lists of networking vocabulary introduced and highlighted in context in each chapter.

·Glossary–Consult the comprehensive Glossary with more than 250 terms.

·Summary of Activities and Labs–Maximize your study time with this complete list of all associated practice exercises at the end of each chapter.

·Check Your Understanding–Evaluate your readiness with the end-of-chapter questions that match the style of questions you see in the online course quizzes. The answer key explains each answer.

How To–Look for this icon to study the steps you need to learn to perform certain tasks.

Interactive Activities–Reinforce your understanding of topics with dozens of exercises from the online course identified throughout the book with this icon.

Videos–Watch the videos embedded within the online course.

Packet Tracer Activities–Explore and visualize networking concepts using Packet Tracer exercises interspersed throughout the chapters and provided in the accompanying Labs & Study Guide book.

Hands-on Labs–Work through all the course labs and additional Class Activities that are included in the course and published in the separate Labs & Study Guide.

Sample Content

Sample Pages

Download the sample pages(includes Chapter 1 thru 3 and Index)

Table of Contents

Introduction xx

Chapter 1LAN Design 1

Objectives 1

关键词1

Introduction (1.0.1.1) 3

Campus Wired LAN Designs (1.1) 4

Cisco Validated Designs (1.1.1) 4

The Need to Scale the Network (1.1.1.1) 4

Hierarchical Design Model (1.1.1.2) 6

Expanding the Network (1.1.2) 8

Design for Scalability (1.1.2.1) 8

Planning for Redundancy (1.1.2.2) 10

Failure Domains (1.1.2.3) 11

Increasing Bandwidth (1.1.2.4) 13

Expanding the Access Layer (1.1.2.5) 14

Fine-tuning Routing Protocols (1.1.2.6) 15

Selecting Network Devices (1.2) 17

Switch Hardware (1.2.1) 17

Switch Platforms (1.2.1.1) 17

Port Density (1.2.1.2) 21

为warding Rates (1.2.1.3) 22

Power over Ethernet (1.2.1.4) 23

Multilayer Switching (1.2.1.5) 24

Router Hardware (1.2.2) 26

Router Requirements (1.2.2.1) 26

Cisco Routers (1.2.2.2) 27

Router Hardware (1.2.2.3) 28

Managing Devices (1.2.3) 29

Managing IOS Files and Licensing (1.2.3.1) 30

In-Band versus Out-of-Band Management (1.2.3.2) 30

Basic Router CLI Commands (1.2.3.3) 31

Basic Router Show Commands (1.2.3.4) 34

Basic Switch CLI Commands (1.2.3.5) 38

Basic Switch Show Commands (1.2.3.6) 40

Summary (1.3) 43

Practice 44

Check Your Understanding Questions 45

Chapter 2Scaling VLANs 47

Objectives 47

Key Terms 47

Introduction (2.0.1.1) 48

VTP, Extended VLANs, and DTP (2.1) 48

VTP Concepts and Operation (2.1.1) 49

VTP Overview (2.1.1.1) 49

VTP Modes (2.1.1.2) 50

VTP Advertisements (2.1.1.3) 52

VTP Versions (2.1.1.4) 53

Default VTP Configuration (2.1.1.5) 53

VTP Caveats (2.1.1.6) 55

VTP Configuration (2.1.2) 57

VTP Configuration Overview (2.1.2.1) 57

Step 1–Configure the VTP Server (2.1.2.2) 58

Step 2–Configure the VTP Domain Name and Password (2.1.2.3) 59

Step 3–Configure the VTP Clients (2.1.2.4) 60

Step 4–Configure VLANs on the VTP Server (2.1.2.5) 60

Step 5–Verify That the VTP Clients Have Received the New VLAN Information (2.1.2.6) 62

Extended VLANs (2.1.3) 63

VLAN Ranges on Catalyst Switches (2.1.3.1) 63

Creating a VLAN (2.1.3.2) 65

Assigning Ports to VLANs (2.1.3.3) 66

Verifying VLAN Information (2.1.3.4) 67

Configuring Extended VLANs (2.1.3.5) 69

Dynamic Trunking Protocol (2.1.4) 71

Introduction to DTP (2.1.4.1) 71

Negotiated Interface Modes (2.1.4.2) 72

Troubleshoot Multi-VLAN Issues (2.2) 75

Inter-VLAN Configuration Issues (2.2.1) 75

Deleting VLANs (2.2.1.1) 75

Switch Port Issues (2.2.1.2) 77

Verify Switch Configuration (2.2.1.3) 79

Interface Issues (2.2.1.4) 81

Verify Routing Configuration (2.2.1.5) 82

IP Addressing Issues (2.2.2) 83

Errors with IP Addresses and Subnet Masks (2.2.2.1) 83

Verifying IP Address and Subnet Mask Configuration Issues (2.2.2.2) 85

VTP and DTP Issues (2.2.3) 88

Troubleshoot VTP Issues (2.2.3.1) 88

Troubleshoot DTP Issues (2.2.3.2) 89

Layer 3 Switching (2.3) 89

Layer 3 Switching Operation and Configuration (2.3.1) 90

Introduction to Layer 3 Switching (2.3.1.1) 90

Inter-VLAN Routing with Switch Virtual Interfaces (2.3.1.2) 91

Inter-VLAN Routing with Switch Virtual Interfaces (Con’t.) (2.3.1.3) 92

Inter-VLAN Routing with Routed Ports (2.3.1.4) 94

Troubleshoot Layer 3 Switching (2.3.2) 95

Layer 3 Switch Configuration Issues (2.3.2.1) 95

Example: Troubleshooting Layer 3 Switching (2.3.2.2) 96

Summary (2.4) 99

Practice 99

Check Your Understanding Questions 100

Chapter 3STP 105

Objectives 105

关键词105

Introduction (3.0.1.1) 107

Spanning Tree Concepts (3.1) 108

Purpose of Spanning Tree (3.1.1) 108

Redundancy at OSI Layers 1 and 2 (3.1.1.1) 108

Issues with Layer 1 Redundancy: MAC Database Instability (3.1.1.2) 109

Issues with Layer 1 Redundancy: Broadcast Storms (3.1.1.3) 111

Issues with Layer 1 Redundancy: Duplicate Unicast Frames (3.1.1.4) 113

STP Operation (3.1.2) 114

Spanning Tree Algorithm: Introduction (3.1.2.1) 114

Spanning Tree Algorithm: Port Roles (3.1.2.2) 117

Spanning Tree Algorithm: Root Bridge (3.1.2.3) 119

Spanning Tree Algorithm: Root Path Cost (3.1.2.4) 121

Port Role Decisions for RSTP (3.1.2.5) 124

Designated and Alternate Ports (3.1.2.6) 127

802.1D BPDU Frame Format (3.1.2.7) 128

802.1D BPDU Propagation and Process (3.1.2.8) 131

Extended System ID (3.1.2.9) 136

Varieties of Spanning Tree Protocols (3.2) 140

Overview (3.2.1) 140

Types of Spanning Tree Protocols (3.2.1.1) 140

Characteristics of the Spanning Tree Protocols (3.2.1.2) 141

PVST+ (3.2.2) 143

Overview of PVST+ (3.2.2.1) 143

Port States and PVST+ Operation (3.2.2.2) 144

Extended System ID and PVST+ Operation (3.2.2.3) 146

Rapid PVST+ (3.2.3) 148

Overview of Rapid PVST+ (3.2.3.1) 148

RSTP BPDUs (3.2.3.2) 149

Edge Ports (3.2.3.3) 150

Link Types (3.2.3.4) 152

Spanning Tree Configuration (3.3) 153

PVST+ Configuration (3.3.1) 153

Catalyst 2960 Default Configuration (3.3.1.1) 153

Configuring and Verifying the Bridge ID (3.3.1.2) 154

PortFast and BPDU Guard (3.3.1.3) 156

PVST+ Load Balancing (3.3.1.4) 158

Rapid PVST+ Configuration (3.3.2) 160

Spanning Tree Mode (3.3.2.1) 161

STP Configuration Issues (3.3.3) 163

Analyzing the STP Topology (3.3.3.1) 164

Expected Topology versus Actual Topology (3.3.3.2) 164

Overview of Spanning Tree Status (3.3.3.3) 165

Spanning Tree Failure Consequences (3.3.3.4) 166

Repairing a Spanning Tree Problem (3.3.3.5) 169

Switch Stacking and Chassis Aggregation (3.3.4) 169

Switch Stacking Concepts (3.3.4.1) 169

Spanning Tree and Switch Stacks (3.3.4.2) 170

Summary (3.4) 173

Practice 174

Check Your Understanding Questions 174

Chapter 4EtherChannel and HSRP 179

Objectives 179

关键词179

Introduction (4.0.1.1) 180

Link Aggregation Concepts (4.1) 181

Link Aggregation (4.1.1) 181

Introduction to Link Aggregation (4.1.1.1) 181

Advantages of EtherChannel (4.1.1.2) 182

EtherChannel Operation (4.1.2) 183

Implementation Restrictions (4.1.2.1) 183

Port Aggregation Protocol (4.1.2.2) 185

Link Aggregation Control Protocol (4.1.2.3) 186

Link Aggregation Configuration (4.2) 188

Configuring EtherChannel (4.2.1) 188

Configuration Guidelines (4.2.1.1) 188

Configuring Interfaces (4.2.1.2) 189

Verifying and Troubleshooting EtherChannel (4.2.2) 191

Verifying EtherChannel (4.2.2.1) 191

Troubleshooting EtherChannel (4.2.2.2) 194

First Hop Redundancy Protocols (4.3) 198

Concept of First Hop Redundancy Protocols (4.3.1) 198

Default Gateway Limitations (4.3.1.1) 198

Router Redundancy (4.3.1.2) 199

Steps for Router Failover (4.3.1.3) 200

First Hop Redundancy Protocols (4.3.1.5) 201

HSRP Operations (4.3.2) 202

HSRP Overview (4.3.2.1) 203

HSRP Versions (4.3.2.2) 204

HSRP Priority and Preemption (4.3.2.3) 204

HSRP States and Timers (4.3.2.4) 205

HSRP Configuration (4.3.3) 206

HSRP Configuration Commands (4.3.3.1) 206

HSRP Sample Configuration (4.3.3.2) 207

HSRP Verification (4.3.3.3) 208

HSRP Troubleshooting (4.3.4) 209

HSRP Failure (4.3.4.1) 209

HSRP Debug Commands (4.3.4.2) 210

Common HSRP Configuration Issues (4.3.4.3) 213

Summary (4.4) 214

Practice 215

Check Your Understanding Questions 216

Chapter 5Dynamic Routing 219

Objectives 219

Key Terms 219

Introduction (5.0.1.1) 221

Dynamic Routing Protocols (5.1) 222

Types of Routing Protocols (5.1.1) 222

Classifying Routing Protocols (5.1.1.1) 222

IGP and EGP Routing Protocols (5.1.1.2) 224

Distance Vector Routing Protocols (5.1.1.3) 226

Link-State Routing Protocols (5.1.1.4) 226

Classful Routing Protocols (5.1.1.5) 228

Classless Routing Protocols (5.1.1.6) 231

Routing Protocol Characteristics (5.1.1.7) 233

Routing Protocol Metrics (5.1.1.8) 234

Distance Vector Dynamic Routing (5.2) 236

Distance Vector Fundamentals (5.2.1) 236

Dynamic Routing Protocol Operation (5.2.1.1) 236

Cold Start (5.2.1.2) 237

Network Discovery (5.2.1.3) 238

Exchanging the Routing Information (5.2.1.4) 239

实现融合(5.2.1.5)241

Distance Vector Routing Protocol Operation (5.2.2) 242

Distance Vector Technologies (5.2.2.1) 242

Distance Vector Algorithm (5.2.2.2) 242

Types of Distance Vector Routing Protocols (5.2.3) 245

Routing Information Protocol (5.2.3.1) 245

Enhanced Interior-Gateway Routing Protocol (5.2.3.2) 246

Link-State Dynamic Routing (5.3) 248

Link-State Routing Protocol Operation (5.3.1) 248

Shortest Path First Protocols (5.3.1.1) 248

Dijkstra’s Algorithm (5.3.1.2) 248

SPF Example (5.3.1.3) 249

Link-State Updates (5.3.2) 251

Link-State Routing Process (5.3.2.1) 251

Link and Link-State (5.3.2.2) 252

Say Hello (5.3.2.3) 256

Building the Link-State Packet (5.3.2.4) 257

Flooding the LSP (5.3.2.5) 258

Building the Link-State Database (5.3.2.6) 259

Building the SPF Tree (5.3.2.7) 260

Adding OSPF Routes to the Routing Table (5.3.2.8) 264

Link-State Routing Protocol Benefits (5.3.3) 264

Why Use Link-State Protocols? (5.3.3.1) 264

Disadvantages of Link-State Protocols (5.3.3.2) 265

Protocols That Use Link-State (5.3.3.3) 267

Summary (5.4) 268

Practice 269

Check Your Understanding Questions 269

Chapter 6EIGRP 273

Objectives 273

Key Terms 273

Introduction (6.0.1.1) 274

EIGRP Characteristics (6.1) 274

EIGRP Basic Features (6.1.1) 274

Features of EIGRP (6.1.1.1) 274

Protocol Dependent Modules (6.1.1.2) 276

Reliable Transport Protocol (6.1.1.3) 278

Authentication (6.1.1.4) 279

EIGRP Packet Types (6.1.2) 279

EIGRP Packet Types (6.1.2.1) 279

EIGRP Hello Packets (6.1.2.2) 280

EIGRP Update and Acknowledgment Packets (6.1.2.3) 281

EIGRP Query and Reply Packets (6.1.2.4) 283

EIGRP Messages (6.1.3) 284

Encapsulating EIGRP Messages (6.1.3.1) 284

EIGRP Packet Header and TLV (6.1.3.2) 285

Implement EIGRP for IPv4 (6.2) 289

Configure EIGRP with IPv4 (6.2.1) 289

EIGRP Network Topology (6.2.1.1) 289

Autonomous System Numbers (6.2.1.2) 291

The router eigrp Command (6.2.1.3) 292

EIGRP Router ID (6.2.1.4) 293

Configuring the EIGRP Router ID (6.2.1.5) 295

The network Command (6.2.1.6) 296

The network Command and Wildcard Mask (6.2.1.7) 298

Passive Interface (6.2.1.8) 300

Verify EIGRP with IPv4 (6.2.2) 302

Verifying EIGRP: Examining Neighbors (6.2.2.1) 302

Verifying EIGRP: show ip protocols Command (6.2.2.2) 304

Verifying EIGRP: Examine the IPv4 Routing Table (6.2.2.3) 306

EIGRP Operation (6.3) 309

EIGRP Initial Route Discovery (6.3.1) 309

EIGRP Neighbor Adjacency (6.3.1.1) 310

EIGRP Topology Table (6.3.1.2) 311

EIGRP Convergence (6.3.1.3) 312

EIGRP Metrics (6.3.2) 313

EIGRP Composite Metric (6.3.2.1) 313

Examining Interface Metric Values (6.3.2.2) 315

Bandwidth Metric (6.3.2.3) 316

Delay Metric (6.3.2.4) 319

How to Calculate the EIGRP Metric (6.3.2.5) 320

Calculating the EIGRP Metric (6.3.2.6) 321

DUAL and the Topology Table (6.3.3) 323

DUAL Concepts (6.3.3.1) 323

Introduction to DUAL (6.3.3.2) 324

Successor and Feasible Distance (6.3.3.3) 324

Feasible Successors, Feasibility Condition, and

Reported Distance (6.3.3.4) 326

Topology Table: show ip eigrp topology Command (6.3.3.5) 328

Topology Table: show ip eigrp topology Command (Cont.) (6.3.3.6) 329

Topology Table: No Feasible Successor (6.3.3.7) 332

DUAL and Convergence (6.3.4) 334

DUAL Finite State Machine (FSM) (6.3.4.1) 334

DUAL: Feasible Successor (6.3.4.2) 335

DUAL: No Feasible Successor (6.3.4.3) 338

Implement EIGRP for IPv6 (6.4) 341

EIGRP for IPv6 (6.4.1) 341

EIGRP for IPv6 (6.4.1.1) 341

Compare EIGRP for IPv4 and IPv6 (6.4.1.2) 342

IPv6 Link-local Addresses (6.4.1.3) 344

Configure EIGRP for IPv6 (6.4.2) 345

EIGRP for IPv6 Network Topology (6.4.2.1) 345

Configuring IPv6 Link-local Addresses (6.4.2.2) 347

Configuring the EIGRP for IPv6 Routing Process (6.4.2.3) 349

The ipv6 eigrp Interface Command (6.4.2.4) 350

Verifying EIGRP for IPv6 (6.4.3) 352

IPv6 Neighbor Table (6.4.3.1) 352

The show ip protocols Command (6.4.3.2) 354

The EIGRP for IPv6 Routing Table (6.4.3.3) 355

Summary (6.5) 358

Practice 359

Check Your Understanding Questions 360

Chapter 7EIGRP调优365和故障排除

目标365

Key Terms 365

Introduction (7.0.1.1) 366

Tune EIGRP (7.1) 366

Automatic Summarization (7.1.1) 366

Network Topology (7.1.1.1) 367

EIGRP Automatic Summarization (7.1.1.2) 369

Configuring EIGRP Automatic Summarization (7.1.1.3) 371

Verifying Auto-Summary: show ip protocols (7.1.1.4) 372

Verifying Auto-Summary: Topology Table (7.1.1.5) 375

Verifying Auto-Summary: Routing Table (7.1.1.6) 376

Summary Route (7.1.1.7) 378

Summary Route (Cont.) (7.1.1.8) 379

Default Route Propagation (7.1.2) 380

Propagating a Default Static Route (7.1.2.1) 380

Verifying the Propagated Default Route (7.1.2.2) 382

EIGRP for IPv6: Default Route (7.1.2.3) 383

微调EIGRPInterfaces (7.1.3) 384

EIGRP Bandwidth Utilization (7.1.3.1) 385

Hello and Hold Timers (7.1.3.2) 386

Load Balancing IPv4 (7.1.3.3) 388

Load Balancing IPv6 (7.1.3.4) 390

Troubleshoot EIGRP (7.2) 392

Components of Troubleshooting EIGRP (7.2.1) 392

Basic EIGRP Troubleshooting Commands (7.2.1.1) 392

Components (7.2.1.2) 394

Troubleshoot EIGRP Neighbor Issues (7.2.2) 397

Layer 3 Connectivity (7.2.2.1) 397

EIGRP Parameters (7.2.2.2) 398

EIGRP Interfaces (7.2.2.3) 399

Troubleshoot EIGRP Routing Table Issues (7.2.3) 401

Passive Interface (7.2.3.1) 401

Missing Network Statement (7.2.3.2) 403

Autosummarization (7.2.3.3) 405

Summary (7.3) 410

Practice 411

Check Your Understanding Questions 412

Chapter 8Single-Area OSPF 415

Objectives 415

Key Terms 415

Introduction (8.0.1.1) 416

OSPF Characteristics (8.1) 416

Open Shortest Path First (8.1.1) 416

Evolution of OSPF (8.1.1.1) 417

Features of OSPF (8.1.1.2) 418

Components of OSPF (8.1.1.3) 419

Link-State Operation (8.1.1.4) 420

Single-Area and Multiarea OSPF (8.1.1.5) 424

OSPF Messages (8.1.2) 426

Encapsulating OSPF Messages (8.1.2.1) 426

Types of OSPF Packets (8.1.2.2) 428

Hello Packet (8.1.2.3) 428

Hello Packet Intervals (8.1.2.4) 430

Link-State Updates (8.1.2.5) 430

OSPF Operation (8.1.3) 431

OSPF Operational States (8.1.3.1) 432

Establish Neighbor Adjacencies (8.1.3.2) 433

OSPF DR and BDR (8.1.3.3) 435

Synchronizing OSPF Databases (8.1.3.4) 438

Single-Area OSPFv2 (8.2) 440

OSPF Router ID (8.2.1) 441

OSPF Network Topology (8.2.1.1) 441

Router OSPF Configuration Mode (8.2.1.2) 442

Router IDs (8.2.1.3) 442

Configuring an OSPF Router ID (8.2.1.4) 444

Modifying a Router ID (8.2.1.5) 445

Using a Loopback Interface as the Router ID (8.2.1.6) 447

Configure Single-Area OSPFv2 (8.2.2) 448

Enabling OSPF on Interfaces (8.2.2.1) 448

Wildcard Mask (8.2.2.2) 448

The network Command (8.2.2.3) 449

Passive Interface (8.2.2.4) 450

Configuring Passive Interfaces (8.2.2.5) 451

OSPF Cost (8.2.3) 453

OSPF Metric = Cost (8.2.3.1) 454

OSPF Accumulates Costs (8.2.3.2) 455

Adjusting the Reference Bandwidth (8.2.3.3) 456

Default Interface Bandwidths (8.2.3.4) 460

Adjusting the Interface Bandwidth (8.2.3.5) 462

Manually Setting the OSPF Cost (8.2.3.6) 463

Verify OSPF (8.2.4) 464

Verify OSPF Neighbors (8.2.4.1) 465

Verify OSPF Protocol Settings (8.2.4.2) 466

Verify OSPF Process Information (8.2.4.3) 466

Verify OSPF Interface Settings (8.2.4.4) 468

Single-Area OSPFv3 (8.3) 469

OSPFv2 vs. OSPFv3 (8.3.1) 469

OSPFv3 (8.3.1.1) 469

Similarities Between OSPFv2 to OSPFv3 (8.3.1.2) 471

Differences Between OSPFv2 and OSPFv3 (8.3.1.3) 471

Link-Local Addresses (8.3.1.4) 472

Configuring OSPFv3 (8.3.2) 473

OSPFv3 Network Topology (8.3.2.1) 473

Link-Local Addresses (8.3.2.2) 475

Assigning Link-Local Addresses (8.3.2.3) 476

Configuring the OSPFv3 Router ID (8.3.2.4) 477

Modifying an OSPFv3 Router ID (8.3.2.5) 479

Enabling OSPFv3 on Interfaces (8.3.2.6) 481

Verify OSPFv3 (8.3.3) 481

Verify OSPFv3 Neighbors (8.3.3.1) 482

Verify OSPFv3 Protocol Settings (8.3.3.2) 483

Verify OSPFv3 Interfaces (8.3.3.3) 483

Verify the IPv6 Routing Table (8.3.3.4) 484

Summary (8.4) 486

Practice 487

Check Your Understanding Questions 488

Chapter 9Multiarea OSPF 493

Objectives 493

Key Terms 493

Introduction (9.0.1.1) 494

Multiarea OSPF Operation (9.1) 494

Why Multiarea OSPF? (9.1.1) 494

Single-Area OSPF (9.1.1.1) 494

Multiarea OSPF (9.1.1.2) 495

OSPF Two-Layer Area Hierarchy (9.1.1.3) 498

Types of OSPF Routers (9.1.1.4) 499

Multiarea OSPF LSA Operation (9.1.2) 501

OSPF LSA Types (9.1.2.1) 502

OSPF LSA Type 1 (9.1.2.2) 502

OSPF LSA Type 2 (9.1.2.3) 503

OSPF LSA Type 3 (9.1.2.4) 504

OSPF LSA Type 4 (9.1.2.5) 505

OSPF LSA Type 5 (9.1.2.6) 506

OSPF Routing Table and Types of Routes (9.1.3) 506

OSPF Routing Table Entries (9.1.3.1) 507

OSPF Route Calculation (9.1.3.2) 508

Configuring Multiarea OSPF (9.2) 509

Configuring Multiarea OSPF (9.2.1) 510

Implementing Multiarea OSPF (9.2.1.1) 510

Configuring Multiarea OSPFv2 (9.2.1.2) 511

Configuring Multiarea OSPFv3 (9.2.1.3) 513

Verifying Multiarea OSPF (9.2.2) 515

Verifying Multiarea OSPFv2 (9.2.2.1) 515

Verify General Multiarea OSPFv2 Settings (9.2.2.2) 515

Verify the OSPFv2 Routes (9.2.2.3) 516

Verify the Multiarea OSPFv2 LSDB (9.2.2.4) 517

Verify Multiarea OSPFv3 (9.2.2.5) 518

Summary (9.3) 522

Practice 523

Check Your Understanding Questions 524

Chapter 10OSPF Tuning and Troubleshooting 527

Objectives 527

Key Terms 527

Introduction (10.0.1.1) 528

Advanced Single-Area OSPF Configurations (10.1) 528

OSPF in Multiaccess Networks (10.1.1) 528

OSPF Network Types (10.1.1.1) 528

Challenges in Multiaccess Networks (10.1.1.2) 531

OSPF Designated Router (10.1.1.3) 533

Verifying DR/BDR Roles (10.1.1.4) 535

Verifying DR/BDR Adjacencies (10.1.1.5) 538

Default DR/BDR Election Process (10.1.1.6) 540

DR/BDR Election Process (10.1.1.7) 541

The OSPF Priority (10.1.1.8) 544

Changing the OSPF Priority (10.1.1.9) 544

Default Route Propagation (10.1.2) 547

Propagating a Default Static Route in OSPFv2 (10.1.2.1) 547

Verifying the Propagated IPv4 Default Route (10.1.2.2) 549

Propagating a Default Static Route in OSPFv3 (10.1.2.3) 551

Verifying the Propagated IPv6 Default Route (10.1.2.4) 552

Fine-tuning OSPF Interfaces (10.1.3) 554

OSPF Hello and Dead Intervals (10.1.3.1) 554

Modifying OSPFv2 Intervals (10.1.3.2) 555

Modifying OSPFv3 Intervals (10.1.3.3) 557

Troubleshooting Single-Area OSPF Implementations (10.2) 560

Components of Troubleshooting Single-Area OSPF (10.2.1) 560

Overview (10.2.1.1) 560

OSPF States (10.2.1.2) 560

OSPF Troubleshooting Commands (10.2.1.3) 562

Components of Troubleshooting OSPF (10.2.1.4) 566

Troubleshoot Single-Area OSPFv2 Routing Issues (10.2.2) 569

Troubleshooting Neighbor Issues (10.2.2.1) 569

故障排除(10.2 OSPFv2路由表的问题。2.2) 573

Troubleshoot Single-Area OSPFv3 Routing Issues (10.2.3) 576

OSPFv3 Troubleshooting Commands (10.2.3.1) 576

Troubleshooting OSPFv3 (10.2.3.2) 580

Troubleshooting Multiarea OSPFv2 and OSPFv3 (10.2.4) 582

Multiarea OSPF Troubleshooting Skills (10.2.4.1) 582

Multiarea OSPF Troubleshooting Data Structures (10.2.4.2) 583

Summary (10.3) 585

Practice 587

Check Your Understanding Questions 587

Appendix AAnswers to the Review Questions 591

Glossary603

9781587134340 TOC 7/18/2017

Updates

Submit Errata

更多的信息

InformIT Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from InformIT and its family of brands. I can unsubscribe at any time.

Overview


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information


To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

为inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

通过我们的在线订单和购买放置store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.

Surveys

Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.

Newsletters

If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simplyemailinformation@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

我们定期与用户沟通公关ovide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through ourContact Us form.

Other Collection and Use of Information


Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.

Security


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.

Children


This site is not directed to children under the age of 13.

Marketing


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

皮尔森可能会提供个人信息结合起来d party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information


If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on theAccount page. If a user no longer desires our service and desires to delete his or her account, please contact us atcustomer-service@informit.comand we will process the deletion of a user's account.

Choice/Opt-out


Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive:www.e-skidka.com/u.aspx.

Sale of Personal Information


Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information toNevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents


California residents should read ourSupplemental privacy statement for California residentsin conjunction with this Privacy Notice. TheSupplemental privacy statement for California residentsexplains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure


Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.

Links


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact


Pleasecontact usabout this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice


We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020


Other Things You Might Like

IT Essentials Companion Guide v8

IT Essentials Companion Guide v8

IT Essentials Companion Guide v8

IT Essentials Companion Guide v8

IT Essentials Labs and Study Guide Version 8

IT Essentials Labs and Study Guide Version 8