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Troubleshooting and Maintaining Cisco IP Networks (TSHOOT) Foundation Learning Guide: (CCNP TSHOOT 300-135)

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  • Description
  • Sample Content
  • Updates
  • Copyright 2015
  • Dimensions: 7-3/8" x 9-1/8"
  • Pages: 496
  • Edition: 1st
  • eBook (Watermarked)
  • ISBN-10: 0-13-396589-9
  • ISBN-13: 978-0-13-396589-6

Troubleshooting and Maintaining Cisco IP Networks (TSHOOT) Foundation Learning Guide is a Cisco authorized, self-paced learning tool for CCNP preparation. This book educates network professionals on how to maintain and monitor network performance, troubleshoot multi protocol system networks, and troubleshoot Cisco device hardening issues.

As part of the Cisco Press Self-Study series, Troubleshooting and Maintaining Cisco IP Networks (TSHOOT) Foundation Learning Guide provides early and comprehensive foundation learning for the xxxx exam. This revision to the popular Foundation Learning Guide format for Advanced Switching at the Professional level is fully updated to include complete coverage of the new xxxx course.

Table of Contents

Chapter 1 Troubleshooting Methods 1

Troubleshooting Principles 1

Structured Troubleshooting Approaches 4

    The Top-Down Troubleshooting Approach 6

    The Bottom-Up Troubleshooting Approach 7

    The Divide-and-Conquer Troubleshooting Approach 8

    The Follow-the-Path Troubleshooting Approach 9

    The Compare-Configurations Troubleshooting Approach 10

    The Swap-Components Troubleshooting Approach 11

Troubleshooting Example Using Six Different Approaches 12

Summary 13

Review Questions 14

Chapter 2 Structured Troubleshooting 15

Troubleshooting Method and Procedure 16

    Defining the Problem 17

    Gathering Information 18

    Analyzing the Information 20

    Eliminating Potential Causes 21

    Proposing a Hypothesis (Likely Cause of the Problem) 21

    Testing and Verifying Validity of the Proposed Hypothesis 23

    Solving the Problem and Documenting the Work 24

Troubleshooting Example Based on the Structured Method and Procedures 25

Summary 26

Review Questions 27

Chapter 3 Network Maintenance Tasks and Best Practices 29

Structured Network Maintenance 29

Network Maintenance Processes and Procedures 31

    Common Maintenance Tasks 32

    Network Maintenance Planning 33

        Scheduling Maintenance 33

        Formalizing Change-Control Procedures 34

        Establishing Network Documentation Procedures 34

        Establishing Effective Communication 35

        Defining Templates/Procedures/Conventions (Standardization) 36

        Planning for Disaster Recovery 36

Network Maintenance Services and Tools 37

    Network Time Services 39

    Logging Services 40

    Performing Backup and Restore 42

Integrating Troubleshooting into the Network Maintenance Process 47

    Network Documentation and Baseline 48

    Communication 50

    Change Control 53

Summary 54

Review Questions 57

Chapter 4 Basic Switching and Routing Process and Effective IOS Troubleshooting Commands 61

Basic Layer 2 Switching Process 61

    Ethernet Frame Forwarding (Layer 2 Data Plane) 62

    Layer 2 Switching Verification 67

Basic Layer 3 Routing Process 69

    IP Packet Forwarding (Layer 3 Data Plane) 70

    Using IOS Commands to Verify IP Packet Forwarding 73

Selective Information Gathering Using IOS show Commands, debug Commands, Ping, and Telnet 76

    Filtering and Redirecting show Command’s Output 76

    Testing Network Connectivity Using Ping and Telnet 81

    Collecting Real-Time Information Using Cisco IOS debug Commands 85

    Diagnosing Hardware Issues Using Cisco IOS Commands 86

        Checking CPU Utilization 87

        Checking Memory Utilization 88

        Checking Interfaces 89

Summary 92

Review Questions 94

Chapter 5 Using Specialized Maintenance and Troubleshooting Tools 99

Categories of Troubleshooting Tools 100

Traffic-Capturing Features and Tools 101

    SPAN 102

    RSPAN 103

Information Gathering with SNMP 105

Information Gathering with NetFlow 107

Network Event Notification 109

Summary 113

Review Questions 114

Chapter 6 Troubleshooting Case Study: SECHNIK Networking 117

SECHNIK Networking Trouble Ticket 1 118

    Troubleshooting PC1’s Connectivity Problem 118

        Gathering Information 119

        Analyzing Information, Eliminating Causes, and Gathering Further Information 119

        Proposing Hypotheses 121

        Testing the Hypotheses and Solving the Problem 121

        Troubleshooting Ethernet Trunks 122

    Troubleshooting PC2’s Connectivity Problem 123

        Gathering Information 124

        Proposing a Hypothesis, Testing the Hypothesis, and Solving the Problem 126

        Troubleshooting NAT 127

    Troubleshooting PC3’s Connectivity Problem 128

        Gathering Information 129

        Eliminating Possibilities, Proposing a Hypothesis, and Testing the Hypothesis 129

        Troubleshooting Network Device Interfaces 130

    Troubleshooting PC4’s IPv6 Connectivity Problem 131

        Gathering Information 131

        Eliminating Possibilities, Proposing a Hypothesis, and Testing the Hypothesis 132

        Troubleshooting IPv6 Address Assignment on Clients 133

SECHNIK Networking Trouble Ticket 2 134

    Troubleshooting PC1’s Internet Connectivity Problem 134

        Gathering Information 135

        Proposing a Hypothesis, Testing the Hypothesis, and Solving the Problem 137

        Troubleshooting Network Layer Connectivity 138

    Troubleshooting PC2’s SSH Connectivity Problem 141

        Verifying and Defining the Problem 141

        Gathering Information 142

        Proposing a Hypothesis and Testing the Hypothesis 143

        TCP Three-Way Handshake 145

    Troubleshooting PC4’s DHCP Address Problem 146

        Verifying and Defining the Problem 146

        Gathering Information 147

        Proposing a Hypothesis, Testing a Hypothesis, and Solving the Problem 148

        Troubleshooting Error-Disabled Ports 151

SECHNIK Networking Trouble Ticket 3 152

    Troubleshooting PC1 and PC2’s Internet Connectivity Issues 153

        Verifying and Defining the Problem 153

        Gathering Information 153

        Proposing a Hypothesis and Testing the Hypothesis 157

        Solving the Problem 159

        Troubleshooting DHCP 160

        The passive-interface Command 161

    Troubleshooting PC3’s Internet Connectivity Issues 162

        Verifying and Defining the Problem 162

        Gathering Information 162

        Proposing a Hypothesis and Testing the Hypothesis 164

        Solving the Problem 165

        IPv6 Review 166

Summary 166

Review Questions 169

Chapter 7 Troubleshooting Case Study: TINC Garbage Disposal 173

TINC Garbage Disposal Trouble Ticket 1 174

    Troubleshooting Lack of Backup Internet Connectivity Through GW2 174

        Information Gathering 176

        Analyzing Information, Eliminating Possibilities, and Proposing a Hypothesis 178

        Proposing a Hypothesis, Testing the Hypothesis, and Solving the Problem 178

        Troubleshooting BGP Neighbor Relationships 181

        Troubleshooting PC1’s Connectivity Problem 182

        Gathering Information 182

        Analyzing Information and Gathering Further Information 183

        Proposing a Hypothesis, Testing the Hypothesis, and Solving the Problem 184

        Troubleshooting Port Security 186

    Troubleshooting PC2’s Connectivity Problem 187

        Gathering Information 188

        Eliminating Possibilities, Proposing a Hypothesis, and Testing the Hypothesis 190

        Solving the Problem 191

        Troubleshooting VLANs 192

TINC Garbage Disposal Trouble Ticket 2 193

    Troubleshooting GW1’s OSPF Neighbor Relation Problem with Router R1 194

        Verifying the Problem 194

        Gathering Information 194

        Analyzing Information, Eliminating Possibilities, and Proposing a Hypothesis 199

        Testing the Hypothesis and Solving the Problem 199

        Troubleshooting OSPF Adjacency 201

    Troubleshooting Secure Shell Version 2 Access to Router R2 from PC4 202

        Verifying the Problem 202

        Gathering Information 203

        Proposing a Hypothesis and Testing the Hypothesis 204

        Solving the Problem 205

        Troubleshooting SSH and Telnet 206

    Troubleshooting Duplicate Address Problem Discovered Through R1 and R2’s Log Messages 207

        Verifying the Problem 207

        Gathering Information 207

        Analyzing the Information and Proposing a Hypothesis 210

        Testing the Hypothesis and Solving the Problem 210

        Troubleshooting HSRP 211

TINC Garbage Disposal Trouble Ticket 3 212

    Troubleshooting Sporadic Internet Connectivity Problem Experienced by Users of PC1 and PC2 212

        Verifying and Defining the Problem 213

        Gathering Information 213

        Analyzing Information and Proposing a Hypothesis 215

        Testing the Hypothesis and Solving the Problem 217

        Troubleshooting Erroneous Routing Information 218

    Troubleshooting Multiple Masters within a VRRP 220

        Verifying and Defining the Problem 220

        Gathering Information 221

        Analyzing the Information and Proposing a Hypothesis 222

        Testing the Hypothesis, and Solving the Problem 222

        Troubleshooting VRRP 224

    Troubleshooting EtherChannel Between ASW4 and ASW3 224

        Verifying the Problem 224

        Defining the Problem 225

        Gathering Information 225

        Proposing a Hypothesis and Testing the Hypothesis 227

        Solving the Problem 228

        Troubleshooting EtherChannel 229

TINC Garbage Disposal Trouble Ticket 4 231

    Troubleshooting Inconsistent and Sporadic Internet Connectivity Problem Experienced By Users of PC1 and PC2 231

        Verifying and Defining the Problem 232

        Gathering Information 233

        Analyzing Information and Proposing a Hypothesis 235

        Testing the Hypotheses 235

        Solving the Problem 239

        Troubleshooting FHRPs 241

    Troubleshooting Sporadic Loss of Connectivity on PC4 242

        Verifying the Problem and Making a Troubleshooting Plan 242

        Gathering Information 242

        Analyzing the Information and Gathering Further Information 244

        Proposing a Hypothesis and Testing the Hypothesis 245

        Solving the Problem 246

        The Cisco IOS DHCP Snooping Feature 248

        Cisco Technical Assistance Center 248

    Troubleshooting SSH Connection from PC4 to Router GW2 249

        Verifying the Problem and Making a Troubleshooting Plan 249

        Gathering Information 250

        Proposing a Hypothesis and Testing the Hypothesis 251

        Solving the Problem 252

Summary 252

Review Questions 255

Chapter 8 Troubleshooting Case Study: PILE Forensic Accounting 257

PILE Forensic Accounting Trouble Ticket 1 258

    Troubleshooting PILE’s Branch Connectivity to HQ and the Internet 258

        Verifying and Defining the Problem 258

        Gathering Information 260

        Analyzing Information 264

        Proposing a Hypothesis and Testing the Hypothesis 264

        Solving the Problem 265

        Troubleshooting EIGRP Adjacency 266

    Troubleshooting PILE’s Secondary Internet Connection Through ISP2 267

        Verifying and Defining the Problem 267

        Gathering Information 268

        Analyzing Information and Proposing a Hypothesis 270

        Testing the Hypothesis 271

        Solving the Problem 273

PILE Forensic Accounting Trouble Ticket 2 274

    Troubleshooting Telnet Problem: From PC3 to BR 274

        Gathering Information 275

    Troubleshooting PILE Network’s Internet Access Problem 275

        Verifying and Defining the Problem 276

        Gathering Information 276

        Analyzing Information, Eliminating Causes, and Gathering Further Information 278

        Proposing and Testing a Hypothesis 280

        Solving the Problem 281

        Troubleshooting BGP 281

    Troubleshooting PILE Network’s NTP Problem 282

        Verifying the Problem 283

        Gathering Information 283

        Analyzing the Gathered Information and Gathering Further Information 284

        Proposing a Hypothesis and Testing the Hypothesis 285

        Solving the Problem 286

        Troubleshooting NTP 286

PILE Forensic Accounting Trouble Ticket 3 287

    Troubleshooting PC3’s Lack of Internet Connectivity After the Disaster Recovery 287

        Verifying the Problem 288

        Gathering Information (First Run) 288

        Analyzing Information, Proposing, and Testing the First Hypothesis 289

        Proposing and Testing the Second Hypothesis 290

        Gathering Further Information (Second Run) 292

        Proposing and Testing the Third Hypothesis 293

        Solving the Problem 294

        Disaster Recovery Best Practices 294

        Troubleshooting Inter-VLAN Routing 296

    Troubleshooting PC4’s Problem Accessing Cisco.com 297

        Verify the Problem and Select an Approach 297

        Gather Information and Analyze the Information 298

        Proposing and Testing a Hypothesis 299

        Solve the Problem 299

        Troubleshooting DNS 300

        Remote Device Management Notes 301

PILE Forensic Accounting Trouble Ticket 4 302

    Troubleshooting Branch Site Internet Connectivity Problem After EIGRP Reconfiguration 302

        Verifying the Problem 302

        Gathering Information 303

        Gathering Further Information and Analyzing Information 303

        Proposing a Hypothesis and Testing the Hypothesis 305

        Solving the Problem 307

        The EIGRP Stub Configuration 308

        The New EIGRP Named Configuration 309

    Troubleshooting Management Access to ASW2 310

        Verifying the Problem 310

        Gathering Information 310

        Proposing a Hypothesis and Testing the Hypothesis 311

        Solving the Problem 312

        Providing a Default Route on Layer 2 And Multilayer Devices 313

PILE Forensic Accounting Trouble Ticket 5 313

    Troubleshooting the Redundant Internet Access Path Through the New HQ0 Edge Router 314

        Verifying and Defining the Problem 314

        Gathering Information 315

        Proposing a Hypothesis and Testing the Hypothesis 318

        Solving the Problem 319

        Troubleshooting BGP Route Selection 321

    Troubleshooting Unauthorized Telnet Access 322

        Verifying the Problem 322

        Gathering Information 322

        Gathering Further Information and Analysis Information 323

        Proposing a Hypothesis and Testing the Hypothesis 324

        Solving the Problem 325

        Securing the Management Plane 325

Summary 326

Review Questions 329

Chapter 9 Troubleshooting Case Study: Bank of POLONA 333

Bank of POLONA Trouble Ticket 1 334

    Troubleshooting PC3’s Lack of Connectivity to SRV2 335

        Verifying the Problem 335

        Gathering Information 336

        Analyzing Information and Proposing a Hypothesis, and Testing the Hypothesis 338

        Solving the Problem 339

        Troubleshooting Redistribution 339

    Troubleshooting VRRP with Interface Tracking 340

        Verifying the Problem 340

        Gathering Information 341

        Analyzing the Information 342

        Proposing and Testing a Hypothesis 342

        Solving the Problem 343

        FHRP Tracking Options 344

    Troubleshooting IP SLA Test Not Starting 345

        Verifying the Problem 345

        Gathering Information 346

        Proposing and Testing a Hypothesis 347

        Solving the Problem 348

        Troubleshooting IP SLA 349

Bank of POLONA Trouble Ticket 2 349

    Troubleshooting Summarization Problem on BR3 350

        Verifying the Problem 350

        Gathering Information 350

        Analyzing Information 351

        Proposing and Testing a Hypothesis 351

        Solving the Problem 352

        Troubleshooting EIGRP Summarization 353

    Troubleshooting PC0’s IPv6 Internet Connectivity 353

        Verifying the Problem 353

        Gathering Information 354

        Analyzing Information 356

        Proposing and Testing a Hypothesis 356

        Solving the Problem 357

        Troubleshooting RIPng 357

    Troubleshooting Branch 3’s IPv6 Internet Connectivity 358

        Verifying the Problem 358

        Gathering Information 359

        Analyzing Information 361

        Proposing and Testing a Hypothesis 361

        Solving the Problem 362

        Troubleshooting Access Control Lists 362

Bank of POLONA Trouble Ticket 3 364

    Troubleshooting Branch 1’s IP Connectivity to the Headquarters 364

        Verifying the Problem 364

        Gathering Information 365

        Proposing and Testing a Hypothesis 366

        Gathering Further Information 367

        Proposing and Testing Another Hypothesis 367

        Solving the Problem 368

        Troubleshooting GRE Tunnels 368

    Troubleshooting Branch 3’s Route Summarization 369

        Verifying the Problem and Choosing an Approach 369

        Gathering Information 370

        Analyzing the Information and Proposing a Hypothesis 373

        Testing the Hypothesis and Solving the Problem 373

        OSPF Summarization Tips and Commands 374

    Troubleshooting AAA Authentication on the Branch 1 Router 375

        Verifying the Problem and Choosing an Approach 375

        Gathering Information 375

        Proposing a Hypothesis 376

        Testing the Hypothesis and Solving the Problem 376

        Troubleshooting AAA 377

Bank of POLONA Trouble Ticket 4 378

    Troubleshooting PC0’s Connectivity to IPv6 Internet 378

        Verifying the Problem and Choosing an Approach 378

        Gathering Information 379

        Analyzing the Information and Proposing and Testing a Hypothesis 381

        Gathering Further Information 382

        Analyzing Information and Proposing and Testing Another Hypothesis 383

        Solving the Problem 384

        Troubleshooting OSPF for IPv6 385

    Troubleshooting the Dysfunctional Totally Stubby Branch Areas 386

        Verifying the Problem and Choosing an Approach 386

        Gathering Information 387

        Analyzing Information 389

        Proposing and Testing a Hypothesis 389

        Solving the Problem 390

        OSPF Stub Areas 391

Summary 391

Review Questions 394

Chapter 10 Troubleshooting Case Study: RADULKO Transport 397

RADULKO Transport Trouble Ticket 1 398

    Mitigating Unauthorized Switches Added by Employees 398

        Gathering Information 399

        Analyzing Information 400

        Proposing a Hypothesis and Solving the Problem 400

        Troubleshooting Spanning Tree Protocol 401

    Troubleshooting Policy-Based Routing 403

        Verifying and Defining the Problem 404

        Gathering Information 404

        Analyzing the Information 405

        Proposing and Testing a Hypothesis 405

        Solving the Problem 406

        Troubleshooting PBR 407

    Troubleshooting Neighbor Discovery 407

        Verifying and Defining the Problem 408

        Gathering Information 408

        Proposing and Testing a Hypothesis 409

        Solving the Problem 409

        Troubleshooting CDP and LLDP 410

RADULKO Transport Trouble Ticket 2 411

    Troubleshooting VLANs and PCs Connectivity Problems 411

        Verifying the Problem 412

        Gathering Information 412

        Analyzing the Information 413

        Proposing and Testing a Hypothesis 413

        Solving the Problem 414

    Troubleshooting VTP 415

    Troubleshooting Branch Router’s IPv6 Problems 416

        Verifying the Problem 416

        Gathering Information 417

        Proposing and Testing a Hypothesis 418

        Solving the Problem 418

        Troubleshooting EIGRP for IPv6 419

    Troubleshooting MP-BGP Session Problem 420

        Verifying the Problem 420

        Gathering Information 420

        Analyzing the Information and Proposing a Hypothesis 421

        Solving the Problem 422

        Troubleshooting MP-BGP 423

RADULKO Transport Trouble Ticket 3 424

    Troubleshooting PC1’s Problem Accessing the SRV Server at the Distribution Center 424

        Verifying and Defining the Problem 424

        Gathering Information 425

        Analyzing Information 428

        Proposing and Testing a Hypothesis 428

        Solving the Problem 429

        Troubleshooting the OSPFv3 Address Families Feature 429

    Troubleshooting OSPFv3 Authentication 430

        Verifying the Problem 430

        Gathering Information 431

        Analyzing Information 432

        Proposing and Testing a Hypothesis 432

        Solving the Problem 433

RADULKO Transport Trouble Ticket 4 433

    Troubleshooting Undesired External OSPF Routes in DST’s Routing Table 434

        Verifying and Defining the Problem 434

        Gathering Information 435

        Analyzing Information 436

        Proposing and Testing a Hypothesis 437

        Solving the Problem 439

Troubleshooting PCs IPv6 Internet Access 440

        Verifying the Problem 440

        Gathering Information 440

        Analyzing Information 442

        Proposing and Testing a Hypothesis 443

        Solving the Problem 444

Summary 444

Review Questions 448

Appendix A Answers to Review Questions 451

9781587204555   TOC   11/26/2014

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