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

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Cover......Page 1
Table of Contents......Page 9
Introduction......Page 17
Applying Maintenance Methodologies......Page 20
Maintenance Models and Methodologies......Page 21
Determining Procedures and Tools to Support Maintenance Models......Page 23
Maintenance Processes and Procedures......Page 24
Network Maintenance Task Identification......Page 25
Scheduling Maintenance......Page 26
Establishing Network Documentation Procedures......Page 27
Establishing Effective Communication......Page 28
Planning for Disaster Recovery......Page 29
Network Monitoring and Performance Measurement......Page 30
Fundamental Tools, Applications, and Resources......Page 31
Configuration and Documentation Tools......Page 34
Logging Services......Page 35
Network Monitoring and Performance Measurement Tools......Page 36
Implementing Backup and Restore Services......Page 37
Disaster Recovery Tools......Page 41
Summary......Page 42
Review Questions......Page 46
Troubleshooting Methodologies......Page 50
Troubleshooting Principles......Page 51
Structured Troubleshooting Approaches......Page 53
Top-Down Troubleshooting Method......Page 54
Follow-the-Path Troubleshooting Method......Page 55
Spot-the-Differences Troubleshooting Method......Page 56
Move-the-Problem Troubleshooting Method......Page 57
Troubleshooting Example: Methodologies......Page 58
The Troubleshooting Process......Page 60
Defining the Problem......Page 61
Gathering and Analyzing Information......Page 62
Eliminating Possible Problem Causes......Page 64
An Example on Elimination and Assumptions......Page 65
Solving the Problem......Page 66
Troubleshooting and Network Maintenance......Page 69
Documentation......Page 70
Creating a Baseline......Page 72
Communication and Change Control......Page 73
Change Control......Page 75
Summary......Page 76
Review Questions......Page 78
Using Cisco IOS Software for Maintenance and Troubleshooting......Page 82
Collecting and Filtering Information Using Cisco IOS show Commands......Page 83
Testing Network Connectivity Using ping and Telnet......Page 88
Debug ip packet [access-list-number][detail]......Page 92
Diagnosing Hardware Issues Using Cisco IOS Commands......Page 93
Checking CPU Utilization......Page 94
Checking Memory Utilization......Page 96
Checking Interfaces......Page 97
Categories of Troubleshooting Tools......Page 100
Using Traffic-Capturing Tools......Page 102
SPAN and RSPAN......Page 103
Gathering Information with SNMP......Page 106
Gathering Information with NetFlow......Page 107
Enabling Network Event Notification......Page 110
Summary......Page 113
Review Questions......Page 116
Troubleshooting VLANs......Page 122
LAN Switch Operation......Page 123
Verifying Layer 2 Forwarding......Page 128
Troubleshooting Spanning Tree......Page 130
Spanning-Tree Operation......Page 131
Electing a Root Port......Page 132
Electing Designated Ports......Page 134
Ports Going into Blocking, or Learning, and Forwarding State......Page 135
Analyzing the Spanning-Tree Topology......Page 136
Spanning-Tree Failures......Page 138
EtherChannel Operation......Page 139
Troubleshooting Example: Switch Replacement Gone Bad......Page 140
Troubleshooting Switched Virtual Interfaces and Inter-VLAN Routing......Page 145
Inter-VLAN Routing and Multilayer Switching......Page 146
Switched Virtual Interfaces and Routed Ports......Page 148
Using First-Hop Redundancy......Page 150
Verifying FHRP Operation......Page 153
Alternatives to HSRP......Page 157
Summary......Page 158
Review Questions......Page 161
Troubleshooting Network Layer Connectivity......Page 168
Routing and Routing Data Structures......Page 169
Using IOS Commands to Verify Routing Functions......Page 173
EIGRP Routing Review......Page 175
Monitoring EIGRP......Page 178
Troubleshooting Example: Routing Problem in an EIGRP Network......Page 179
Troubleshooting OSPF......Page 184
OSPF Data Structures......Page 185
OSPF Information Flow Within an Area......Page 189
OSPF Information Flow Between Areas......Page 190
Cisco IOS OSPF Commands......Page 191
Troubleshooting Example: Routing Problem in an OSPF Network......Page 193
Route Injection and Redistribution Process......Page 198
Verifying and Troubleshooting Route Propagation......Page 200
Troubleshooting Example: Redistribution from OSPF to EIGRP......Page 202
BGP Route Processing and Data Structures......Page 206
BGP Routing Information Flow......Page 208
Cisco IOS BGP Commands......Page 209
Troubleshooting Example: Routing Problem in a BGP Network......Page 210
Summary......Page 216
Review Questions......Page 221
Identify Common IPv4 Addressing Service Issues......Page 230
NAT/PAT Operation......Page 231
Troubleshooting Common NAT/PAT Issues......Page 234
Troubleshooting Example: NAT/PAT Problem Caused by a Routing Issue......Page 236
Troubleshooting Example: NAT Problem Caused by an Inaccurate Access List......Page 239
Reviewing DHCP Operation......Page 245
Common DHCP Troubleshooting Issues......Page 246
DHCP Troubleshooting Tips and Commands......Page 250
DHCP Troubleshooting Example: Problems After a Security Audit......Page 252
DHCP Troubleshooting Example: Duplicate Client IP Addresses......Page 257
DHCP Troubleshooting Example: Relay Agent Issue......Page 259
IPv6 Routing......Page 262
Troubleshooting IPv6 Issues......Page 263
IPv6 Troubleshooting Example: Stateless Autoconfiguration Issue......Page 265
IPv6 Troubleshooting Example: Redistribution Issue......Page 272
IPv6 Troubleshooting Example: OSPFv3 Configuration Errors......Page 280
IPv6 Troubleshooting Example: OSPFv3 over 6to4 Tunnel......Page 289
Summary......Page 295
Review Questions......Page 298
Troubleshooting Network Applications Services......Page 302
Network Application Services......Page 303
NetFlow......Page 305
Cisco IP SLA......Page 308
NBAR......Page 311
SLB......Page 312
QoS and AutoQoS......Page 313
Common IP SLA Issues......Page 315
Troubleshooting Example: Network Application Services Problem......Page 316
NetFlow Troubleshooting Example......Page 317
IP SLA Troubleshooting Example......Page 320
AutoQoS Troubleshooting Example......Page 323
Identifying Performance Issues on Switches......Page 327
Troubleshooting Switch Interface Performance Problems......Page 329
Switch Port/Interface Issues......Page 333
Troubleshooting Example: Duplex Problem......Page 334
Auto-MDIX......Page 336
Troubleshooting TCAM Problems......Page 337
Control Plane: Troubleshooting High CPU Load on Switches......Page 341
DHCP Issues......Page 344
Spanning-Tree Issues......Page 345
Switch Performance Troubleshooting Example: Speed and Duplex Settings......Page 346
Switch Performance Troubleshooting Example: Excessive Broadcasts......Page 351
Switch Performance Troubleshooting Example: Excessive Security......Page 355
Troubleshooting Performance Issues on Routers......Page 362
Troubleshooting High CPU Usage Issues on Routers......Page 363
Troubleshooting Switching Paths......Page 366
Fast Switching......Page 367
Cisco Express Forwarding......Page 368
Troubleshooting Process and Fast Switching......Page 369
Troubleshooting CEF......Page 370
IOS Tools to Analyze Packet Forwarding......Page 373
Troubleshooting Router Memory Issues......Page 376
BGP Memory Use......Page 379
Summary......Page 380
Review Questions......Page 384
Troubleshooting Converged Networks to Support Wireless Operations......Page 390
Common Wireless Integration Issues......Page 391
WLAN Connectivity Troubleshooting Example: Misconfigured Trunk......Page 393
WLAN Connectivity Troubleshooting Example: Duplex and Trust Issues......Page 397
WLAN Connectivity Troubleshooting Example: LWAPP Denied by New Security Implementations......Page 401
WLAN Connectivity Troubleshooting Example: DHCP Issues......Page 404
Common Unified Communications Integration Issues......Page 409
Unified Communications Troubleshooting Example: Port Security and Voice VLAN Issues......Page 414
Unified Communications Troubleshooting Example: Invalid Marking of VoIP Packets......Page 418
Unified Communications Troubleshooting Example: ACL and Trunk Issues......Page 424
Common Video-Integration Issues......Page 429
Video-Integration Troubleshooting Example: Performance Issues Due to STP Topology......Page 435
Video-Integration Troubleshooting Example: IP Multicast Configuration Error......Page 445
Summary......Page 450
Review Questions......Page 452
Troubleshooting Secure Networks......Page 454
Troubleshooting Challenges in Secured Networks......Page 455
Security Features Review......Page 456
The Management Plane......Page 457
Securing the Management Plane......Page 459
Troubleshooting Security Implementations in the Management Plane......Page 461
Troubleshooting Control Plane Security......Page 466
Troubleshooting Security Implementations in the Control Plane......Page 467
Securing the Data Plane Using IOS Stateful Packet Inspection......Page 468
Securing the Data Plane Using the Zone-Based Policy Firewall......Page 471
Other Methods of Securing the Data Plane......Page 473
Troubleshooting Security Implementations in the Data Plane......Page 474
Branch Office and Remote Worker Connectivity......Page 475
Identifying Issues with Branch Office and Remote Worker Connectivity......Page 476
Branch Office/Remote Worker Troubleshooting Example: Address Translation Error......Page 479
Branch Office/Remote Worker Troubleshooting Example: Crypto Map ACL Error......Page 482
Branch Office/Remote Worker Troubleshooting Example: GRE Configuration Error......Page 486
Branch Office/Remote Worker Troubleshooting Example: Recursive Routing Problem......Page 490
Branch Office/Remote Worker Troubleshooting Example: ACL Denies IPsec Protocols......Page 495
Summary......Page 497
Review Questions......Page 499
Review of Key Maintenance and Troubleshooting Concepts and Tools......Page 504
Applying Maintenance and Troubleshooting Concepts and Tools......Page 507
Summary......Page 510
Appendix A: Answer to Review Questions......Page 512
A......Page 520
C......Page 522
D......Page 527
E......Page 529
F......Page 530
H......Page 531
I......Page 532
M......Page 534
N......Page 536
P......Page 537
R......Page 540
S......Page 542
T......Page 546
U......Page 548
V......Page 549
Z......Page 550