Troubleshooting and Maintaining Cisco IP Networks (TSHOOT) Foundation Learning Guide: Foundation learning for the CCNP TSHOOT 642-832 [NOOK Book]

Overview

This is the eBook version of the printed book. If the print book includes a CD-ROM, this content is not included within the eBook version.

Troubleshooting and Maintaining Cisco IP Networks (TSHOOT) Foundation Learning Guide is a Cisco® authorized learning tool for CCNP preparation. As part of the Cisco Press foundation learning series, this book covers how to maintain and monitor complex enterprise networks.

 

The chapters focus on ...

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Troubleshooting and Maintaining Cisco IP Networks (TSHOOT) Foundation Learning Guide: Foundation learning for the CCNP TSHOOT 642-832

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Overview

This is the eBook version of the printed book. If the print book includes a CD-ROM, this content is not included within the eBook version.

Troubleshooting and Maintaining Cisco IP Networks (TSHOOT) Foundation Learning Guide is a Cisco® authorized learning tool for CCNP preparation. As part of the Cisco Press foundation learning series, this book covers how to maintain and monitor complex enterprise networks.

 

The chapters focus on planning tasks, evaluations of designs, performance measurements, configuring and verifying, and correct troubleshooting procedures and documentation tasks. From this book you will learn the foundational topics for critical analysis, planning, verification and documentation, while configuring tasks would have been mastered in the CCNP ROUTE and CCNP SWITCH material. The author walks you through several real-world troubleshooting examples to help you refine your study in the art of troubleshooting.

 

Each chapter opens with the list of topics covered to clearly identify the focus of that chapter. At the end of each chapter, a summary of key concepts for quick study and review questions provide you with an opportunity to assess and reinforce your understanding of the material. Throughout the book, real-world troubleshooting examples serve to illuminate theoretical concepts.

 

Troubleshooting and Maintaining Cisco IP Networks (TSHOOT) Foundation Learning Guide is ideal for certification candidates who are seeking a tool to learn all the topics covered in the CCNP TSHOOT 642-832 exam.

 

  • Serves as the official book for the Cisco Networking Academy CCNP TSHOOT course
  • Provides a thorough presentation on maintenance and troubleshooting techniques for routers and switches in a complex enterprise network
  • Covers troubleshooting wireless, unified communications, and video issues in converged networks
  • Explains how to maintain and troubleshoot network security implementations
  • Uses extensive troubleshooting examples and diagrams to solidify the topic explanations
  • Presents self-assessment review questions, chapter objectives, and summaries to facilitate effective studying

 

This volume is in the Certification Self-Study Series offered by Cisco Press®. Books in this series provide officially developed training solutions to help networking professionals understand technology implementations and prepare for the Cisco Career Certifications examinations.

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Product Details

  • ISBN-13: 9781587141713
  • Publisher: Pearson Education
  • Publication date: 4/9/2010
  • Series: Foundation Learning Guides
  • Sold by: Barnes & Noble
  • Format: eBook
  • Edition number: 1
  • Pages: 552
  • File size: 22 MB
  • Note: This product may take a few minutes to download.

Meet the Author

Amir Ranjbar, CCIE No. 8669, is a Certified Cisco Systems Instructor and an internetworking consultant. Operating under his own corporation, AMIRACAN Inc., Amir offers his training services to Global Knowledge Network, his consulting expertise to a variety of clients (mainly Internet service providers), and his technical writing skills to Cisco Press. Born in Tehran, Iran, Amir immigrated to Canada in 1983 at the age of 16 and completed his Master’s degree in knowledge-based systems (a branch in AI) in 1991. He has been involved in training, consulting, and technical writing for the greater part of his career. Amir Ranjbar can be contacted through his e-mail address aranjbar@amiracan.com.

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Table of Contents

Introduction xvi

Chapter 1 Planning Maintenance for Complex Networks 1

Applying Maintenance Methodologies 1

Maintenance Models and Methodologies 2

Determining Procedures and Tools to Support Maintenance Models 4

Maintenance Processes and Procedures 5

Network Maintenance Task Identification 6

Network Maintenance Planning 7

Scheduling Maintenance 7

Formalizing Change-Control Procedures 8

Establishing Network Documentation Procedures 8

Establishing Effective Communication 9

Defining Templates/Procedures/Conventions (Standardization) 10

Planning for Disaster Recovery 10

Network Monitoring and Performance Measurement 11

Network Maintenance Tools, Applications, and Resources 12

Fundamental Tools, Applications, and Resources 12

Configuration and Documentation Tools 15

Logging Services 16

Network Monitoring and Performance Measurement Tools 17

Implementing Backup and Restore Services 18

Disaster Recovery Tools 22

Summary 23

Review Questions 27

Chapter 2 Troubleshooting Processes for Complex Enterprise Networks 31

Troubleshooting Methodologies 31

Troubleshooting Principles 32

Structured Troubleshooting Approaches 34

Top-Down Troubleshooting Method 35

Bottom-Up Troubleshooting Method 36

Follow-the-Path Troubleshooting Method 36

Spot-the-Differences Troubleshooting Method 37

Move-the-Problem Troubleshooting Method 38

Troubleshooting Example: Methodologies 39

Implementing Troubleshooting Procedures 41

The Troubleshooting Process 41

Defining the Problem 42

Gathering and Analyzing Information 43

Eliminating Possible Problem Causes 45

Formulating/Testing a Hypothesis 46

An Example on Elimination and Assumptions 46

Solving the Problem 47

Integrating Troubleshooting into the Network Maintenance Process 50

Troubleshooting and Network Maintenance 50

Documentation 51

Creating a Baseline 53

Communication and Change Control 54

Change Control 56

Summary 57

Review Questions 59

Chapter 3 Using Maintenance and Troubleshooting Tools and Applications 63

Using Cisco IOS Software for Maintenance and Troubleshooting 63

Collecting and Filtering Information Using Cisco IOS show Commands 64

Testing Network Connectivity Using ping and Telnet 69

Collecting Real-time Information Using Cisco IOS debug Commands 73

debug ip packet [access-list-number][detail] 73

debug ip rip 74

Diagnosing Hardware Issues Using Cisco IOS Commands 74

Checking CPU Utilization 75

Checking Memory Utilization 77

Checking Interfaces 78

Using Specialized Maintenance and Troubleshooting Tools 81

Categories of Troubleshooting Tools 81

Using Traffic-Capturing Tools 83

SPAN and RSPAN 84

Gathering Information with SNMP 87

Gathering Information with NetFlow 88

Enabling Network Event Notification 91

Summary 94

Review Questions 97

Chapter 4 Maintaining and Troubleshooting Campus Switched Solutions 103

Troubleshooting VLANs 103

LAN Switch Operation 104

Verifying Layer 2 Forwarding 109

Troubleshooting Spanning Tree 111

Spanning-Tree Operation 112

Electing a Root Bridge 113

Electing a Root Port 113

Electing Designated Ports 115

Ports Going into Blocking, or Learning, and Forwarding State 116

Analyzing the Spanning-Tree Topology 117

Spanning-Tree Failures 119

EtherChannel Operation 120

Troubleshooting Example: Switch Replacement Gone Bad 121

Troubleshooting Switched Virtual Interfaces and Inter-VLAN Routing 126

Inter-VLAN Routing and Multilayer Switching 127

Switched Virtual Interfaces and Routed Ports 129

Troubleshooting First-Hop Redundancy Protocols 131

Using First-Hop Redundancy 131

Verifying FHRP Operation 134

Alternatives to HSRP 138

Summary 139

Review Questions 142

Chapter 5 Maintaining and Troubleshooting Routing Solutions 149

Troubleshooting Network Layer Connectivity 149

Routing and Routing Data Structures 150

Using IOS Commands to Verify Routing Functions 154

Troubleshooting EIGRP 156

EIGRP Routing Review 156

Monitoring EIGRP 159

Troubleshooting Example: Routing Problem in an EIGRP

Network 160

Troubleshooting OSPF 165

OSPF Data Structures 166

OSPF Information Flow Within an Area 170

OSPF Information Flow Between Areas 171

Cisco IOS OSPF Commands 172

Troubleshooting Example: Routing Problem in an OSPF Network 174

Troubleshooting Route Redistribution 179

Route Injection and Redistribution Process 179

Verifying and Troubleshooting Route Propagation 181

Troubleshooting Example: Redistribution from OSPF to EIGRP 183

Troubleshooting BGP 187

BGP Route Processing and Data Structures 187

BGP Routing Information Flow 189

Cisco IOS BGP Commands 190

Troubleshooting Example: Routing Problem in a BGP Network 191

Summary 197

Review Questions 202

Chapter 6 Troubleshooting Addressing Services 211

Identify Common IPv4 Addressing Service Issues 211

NAT/PAT Operation 212

Troubleshooting Common NAT/PAT Issues 215

Troubleshooting Example: NAT/PAT Problem Caused by a

Routing Issue 217

Troubleshooting Example: NAT Problem Caused by an Inaccurate

Access List 220

Reviewing DHCP Operation 226

Common DHCP Troubleshooting Issues 227

DHCP Troubleshooting Tips and Commands 231

DHCP Troubleshooting Example: Problems After a Security Audit 233

DHCP Troubleshooting Example: Duplicate Client IP Addresses 238

DHCP Troubleshooting Example: Relay Agent Issue 240

Identify Common IPv6 Routing Issues 243

IPv6 Routing 243

Troubleshooting IPv6 Issues 244

IPv6 Troubleshooting Example: Stateless Autoconfiguration Issue 246

IPv6 Troubleshooting Example: Redistribution Issue 253

IPv6 Troubleshooting Example: OSPFv3 Configuration Errors 261

IPv6 Troubleshooting Example: OSPFv3 over 6to4 Tunnel 270

Summary 276

Review Questions 279

Chapter 7 Troubleshooting Network Performance Issues 283

Troubleshooting Network Applications Services 283

Network Application Services 284

NetFlow 286

Cisco IP SLA 289

NBAR 292

SLB 293

QoS and AutoQoS 294

Common Issues with Network Application Services 296

Common NetFlow Issues 296

Common IP SLA Issues 296

Common NBAR Issues 297

Common AutoQoS Issues 297

Troubleshooting Example: Network Application Services Problem 297

NetFlow Troubleshooting Example 298

IP SLA Troubleshooting Example 301

AutoQoS Troubleshooting Example 304

Troubleshooting Performance Issues on Switches 308

Identifying Performance Issues on Switches 308

Troubleshooting Switch Interface Performance Problems 310

Switch Port/Interface Issues 314

Troubleshooting Example: Duplex Problem 315

Auto-MDIX 317

The Forwarding Hardware 318

Troubleshooting TCAM Problems 318

Control Plane: Troubleshooting High CPU Load on Switches 322

DHCP Issues 325

Spanning-Tree Issues 326

HSRP 327

Switch Performance Troubleshooting Example:

Speed and Duplex Settings 327

Switch Performance Troubleshooting Example: Excessive Broadcasts 332

Switch Performance Troubleshooting Example: Excessive Security 336

Troubleshooting Performance Issues on Routers 343

Troubleshooting High CPU Usage Issues on Routers 344

Troubleshooting Switching Paths 347

Process Switching 348

Fast Switching 348

Cisco Express Forwarding 349

Troubleshooting Process and Fast Switching 350

Troubleshooting CEF 351

IOS Tools to Analyze Packet Forwarding 354

Troubleshooting Router Memory Issues 357

BGP Memory Use 360

Summary 361

Review Questions 365

Chapter 8 Troubleshooting Converged Networks 371

Troubleshooting Converged Networks to Support Wireless Operations 371

Common Wireless Integration Issues 372

WLAN Connectivity Troubleshooting Example: Misconfigured Trunk 374

WLAN Connectivity Troubleshooting Example: Duplex and Trust Issues 378

WLAN Connectivity Troubleshooting Example: LWAPP Denied by New

Security Implementations 382

WLAN Connectivity Troubleshooting Example: DHCP Issues 385

Troubleshooting Unified Communications Issues in a Converged Network 390

Common Unified Communications Integration Issues 390

Unified Communications Troubleshooting Example: Port Security and

Voice VLAN Issues 395

Unified Communications Troubleshooting Example: Invalid Marking of

VoIP Packets 399

Unified Communications Troubleshooting Example: ACL and

Trunk Issues 405

Troubleshooting Video Issues in a Converged Network 410

Common Video-Integration Issues 410

Video-Integration Troubleshooting Example: Performance Issues Due to

STP Topology 416

Video-Integration Troubleshooting Example: IP Multicast

Configuration Error 426

Summary 431

Review Questions 433

Chapter 9 Maintaining and Troubleshooting Network Security

Implementations 435

Troubleshooting Secure Networks 435

Troubleshooting Challenges in Secured Networks 436

Security Features Review 437

Troubleshooting Management Plane Security 438

The Management Plane 438

Securing the Management Plane 440

Troubleshooting Security Implementations in the Management Plane 442

Troubleshooting Control Plane Security 447

Securing the Control Plane 448

Troubleshooting Security Implementations in the Control Plane 448

Troubleshooting Data Plane Security 449

Securing The Data Plane 449

Securing the Data Plane Using IOS Stateful Packet Inspection 449

Securing the Data Plane Using the Zone-Based Policy Firewall 452

Other Methods of Securing the Data Plane 454

Troubleshooting Security Implementations in the Data Plane 455

Troubleshooting Branch Office and Remote Worker Connectivity 456

Branch Office and Remote Worker Connectivity 456

Identifying Issues with Branch Office and Remote Worker Connectivity 457

Branch Office/Remote Worker Troubleshooting Example: Address

Translation Error 460

Branch Office/Remote Worker Troubleshooting Example:

Crypto Map ACL Error 463

Branch Office/Remote Worker Troubleshooting Example: GRE

Configuration Error 467

Branch Office/Remote Worker Troubleshooting Example: Recursive

Routing Problem 471

Branch Office/Remote Worker Troubleshooting Example: ACL Denies

IPsec Protocols 476

Summary 478

Review Questions 480

Chapter 10 Review and Preparation for Troubleshooting Complex Enterprise

Networks 485

Review of Key Maintenance and Troubleshooting Concepts and Tools 485

Applying Maintenance and Troubleshooting Concepts and Tools 488

Summary 491

Appendix A Answer to Review Questions 493

Index 501

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