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

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.
 
 
 
 
 

Sommario

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

Info autore

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 [e-mail].

 

Riassunto

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.

Dettagli sul prodotto

• Autori: Amir Ranjbar
• Editore: Macmillan Technical Publishing
• Lingue: Inglese
• Formato: Copertina rigida
• Pubblicazione: 22.12.2010
• EAN: 9781587058769
• ISBN: 978-1-58705-876-9
• Pagine: 552
• Dimensioni: 187 mm x 230 mm x 34 mm
• Peso: 1148 g
• Illustrazioni: w. figs.
• Serie: Cisco Press; Cisco Press
• Categoria: Scienze naturali, medicina, informatica, tecnica > Informatica, EDP > Comunicazione dati, reti