CCNP TSHOOT 642-832 Official Certification Guide (Official Cert Guide)

Cover......Page 1
Contents......Page 8
Foreword......Page 18
Introduction......Page 19
 “Do I Know This Already?” Quiz......Page 30
  Proactive Versus Reactive Network Maintenance......Page 34
  Adapting a Well-Known Network Maintenance Model......Page 35
 Identifying Common Maintenance Procedures......Page 36
  Benefits of Scheduled Maintenance......Page 37
  Managing Network Changes......Page 38
  Maintaining Network Documentation......Page 39
  Restoring Operation After Failure......Page 40
  Basic Network Maintenance Tools......Page 41
  Network Documentation Tools......Page 48
  Monitoring and Measuring Tools......Page 49
  Definition of Key Terms......Page 50
  Command Reference to Check Your Memory......Page 51
 “Do I Know This Already?” Quiz......Page 54
  Defining Troubleshooting......Page 58
  The Value of a Structured Troubleshooting Approach......Page 60
  The Top-Down Method......Page 61
 Practice Exercise: Selecting a Troubleshooting Approach......Page 65
 Using Troubleshooting Procedures......Page 66
  Examine Collected Information......Page 67
  Eliminate Potential Causes......Page 68
  Verify Hypothesis......Page 69
  The Relationship Between Maintenance and Troubleshooting Tasks......Page 70
  Maintaining Current Network Documentation......Page 71
  Communicating Throughout the Troubleshooting Process......Page 72
  Change Management......Page 73
  Command Reference to Check Your Memory......Page 75
 “Do I Know This Already?” Quiz......Page 78
  Filtering the Output of show Commands......Page 80
  Troubleshooting Connectivity......Page 85
  Troubleshooting Hardware......Page 87
 Specialized Diagnostic Tools......Page 88
 Performing Packet Captures......Page 89
 Creating a Baseline with SNMP and NetFlow......Page 93
  NetFlow......Page 94
  Providing Notifications for Network Events......Page 97
  Review All the Key Topics......Page 100
  Command Reference to Check Your Memory......Page 101
 “Do I Know This Already?” Quiz......Page 106
  Reviewing Layer 2 Switching......Page 108
  Layer 2 Troubleshooting Techniques......Page 115
 Spanning Tree Protocol Troubleshooting......Page 117
  Reviewing STP Operation......Page 118
  Collecting Information About an STP Topology......Page 120
  STP Troubleshooting Issues......Page 121
  Troubleshooting EtherChannel......Page 123
  Trouble Ticket #1......Page 124
  Suggested Solution......Page 128
  Define Key Terms......Page 130
  Command Reference to Check Your Memory......Page 131
 “Do I Know This Already?” Quiz......Page 134
  Contrasting Layer 3 Switches with Routers......Page 137
  Control Plane and Data Plane Troubleshooting......Page 138
  Comparing Routed Switch Ports and Switched Virtual Interfaces......Page 140
 Router Redundancy Troubleshooting......Page 142
  HSRP......Page 143
  HSRP Verification and Troubleshooting......Page 144
  VRRP......Page 147
  Troubleshooting VRRP and GLBP......Page 148
  Cisco Catalyst Switch Troubleshooting Targets......Page 149
  TCAM Troubleshooting......Page 154
  High CPU Utilization Level Troubleshooting......Page 156
  Trouble Ticket #2......Page 157
  Suggested Solution......Page 161
  Complete Tables and Lists from Memory......Page 162
  Command Reference to Check Your Memory......Page 163
 “Do I Know This Already?” Quiz......Page 166
  Basic Routing Processes......Page 168
  Troubleshooting Basic Routing......Page 171
 EIGRP Troubleshooting......Page 176
  Data Structures of IP Routing Protocols......Page 177
  EIGRP Operation......Page 179
  EIGRP Troubleshooting Commands......Page 181
  Trouble Ticket #3......Page 185
  Suggested Solution......Page 188
  Command Reference to Check Your Memory......Page 190
 “Do I Know This Already?” Quiz......Page 194
  OSPF Data Structures......Page 197
  OSPF Operation......Page 198
  OSPF Troubleshooting Commands......Page 205
  Trouble Ticket #4......Page 213
 Route Redistribution Troubleshooting......Page 231
  Route Redistribution Overview......Page 232
  Route Redistribution Troubleshooting Targets......Page 233
 Trouble Ticket: Route Redistribution with EIGRP and OSPF......Page 236
  Trouble Ticket #5......Page 237
  Suggested Solution......Page 244
  Complete Tables and Lists from Memory......Page 248
  Command Reference to Check Your Memory......Page 249
 “Do I Know This Already?” Quiz......Page 252
  BGP Data Structures......Page 254
  BGP Troubleshooting Commands......Page 257
  Trouble Ticket #6......Page 263
  Suggested Solution......Page 269
  Excessive CPU Utilization......Page 272
 Cisco IOS Commands Used for Troubleshooting High Processor Utilization......Page 273
 Operation of Process Switching......Page 278
 Operation of Cisco Express Forwarding......Page 279
 Troubleshooting Packet Switching Modes......Page 281
 Common Memory Troubleshooting Targets......Page 285
 Excessive BGP Memory Use......Page 288
  Complete Tables and Lists from Memory......Page 289
  Command Reference to Check Your Memory......Page 290
 “Do I Know This Already?” Quiz......Page 294
  Securing the Management Plane......Page 297
  Securing the Control Plane......Page 299
  Securing the Data Plane......Page 304
  Troubleshooting Network Security Issues......Page 307
  Configuring and Troubleshooting the Cisco IOS Firewall Feature......Page 308
  Configuring and Troubleshooting AAA......Page 312
 Trouble Ticket: Cisco IOS Security......Page 315
  Trouble Ticket #7......Page 316
  Issue #1: Forgotten Enable Secret Password......Page 318
  Issue #2: An exec-timeout Parameter Set Too Low......Page 319
  Issue #3: ACL Misconfiguration......Page 320
  Define Key Terms......Page 322
  Command Reference to Check Your Memory......Page 323
 “Do I Know This Already?” Quiz......Page 326
  Sample NAT Topology......Page 329
  Potential NAT Troubleshooting Issues......Page 331
  Order of Operations for an Interface......Page 332
  NAT Troubleshooting Syntax......Page 333
  Basic DHCP Operation......Page 336
  DHCP Configurations......Page 337
  Potential DHCP Troubleshooting Issues......Page 340
  DHCP Troubleshooting Syntax......Page 341
  Trouble Ticket #8......Page 344
  Complete Tables and Lists from Memory......Page 349
  Command Reference to Check Your Memory......Page 350
 “Do I Know This Already?” Quiz......Page 354
  Overview of IP Telephony......Page 357
  Design Considerations for Voice Networks......Page 358
  Cisco IP Phone Boot-Up Process......Page 361
  Common Voice Troubleshooting Issues......Page 362
  Overview of Quality of Service......Page 363
 Video Troubleshooting......Page 373
  Introduction to IP-Based Video......Page 374
  Design Considerations for Video......Page 375
  Multicasting......Page 376
  Common Video Troubleshooting Issues......Page 384
  Trouble Ticket #9......Page 386
  Trouble Ticket #10......Page 390
  Define Key Terms......Page 396
  Command Reference to Check Your Memory......Page 397
 “Do I Know This Already?” Quiz......Page 400
  IPv6 Address Types......Page 403
  IPv6 Address Format......Page 405
  Configuring IPv6 Support......Page 406
  Tunneling IPv6 Through an IPv4 Tunnel......Page 407
  Configuring OSPFv3......Page 409
  Troubleshooting OSPFv3......Page 411
  Trouble Ticket #11......Page 412
  Viewing Baseline Information......Page 413
  Troubleshoot and Resolve the Identified OSPFv3 Adjacency Issue......Page 418
  RIPng Configuration Commands......Page 426
  Troubleshooting RIPng......Page 428
  Viewing Baseline Information......Page 429
  Troubleshoot and Resolve the Identified RIPng Issue......Page 435
  Review All Key Topics......Page 441
  Command Reference to Check Your Memory......Page 442
Chapter 13 Advanced Services Troubleshooting......Page 446
 “Do I Know This Already?” Quiz......Page 447
 Application Network Services Troubleshooting......Page 449
  Application Optimization......Page 450
  NetFlow......Page 451
  IP SLAs......Page 453
  Network-Based Application Recognition......Page 456
  QoS......Page 458
 Wireless Troubleshooting Targets......Page 461
  Introducing the Cisco Unified Wireless Network......Page 462
  Wired Network Issues Impacting Wireless Networks......Page 464
  Review All the Key Topics......Page 467
  Command Reference to Check Your Memory......Page 468
 “Do I Know This Already?” Quiz......Page 472
 Remote Office Troubleshooting......Page 475
  VPN Types......Page 476
  Troubleshooting VPN Issues......Page 481
  Troubleshooting Complex Networks......Page 490
  Case Study Review......Page 491
  Command Reference to Check Your Memory......Page 497
 Exam Engine and Questions on the CD......Page 500
  Activate and Download the Practice Exam......Page 501
 The Cisco CCNP Prep Center......Page 502
  Choosing Study or Simulation Mode......Page 503
  Passing Scores for the TSHOOT Exam......Page 504
Appendix A: Answers to the “Do I Know This Already?” Quizzes......Page 506
 A......Page 510
 B......Page 511
 C......Page 512
 D......Page 513
 E......Page 514
 H......Page 515
 I......Page 516
 M......Page 517
 N......Page 518
 O......Page 519
 R......Page 520
 S......Page 521
 V......Page 522
 Z......Page 523
 B......Page 524
 C......Page 525
 D......Page 526
 F......Page 527
 I......Page 528
 M......Page 529
 O......Page 530
 R......Page 531
 S......Page 533
 T......Page 534
 W-X-Y-Z......Page 535
 Appendix B: Memory Tables......Page 542
 Appendix C: Memory Tables Answer Key......Page 578