123,123

內(nèi)容簡介

本書是在使用Cisco網(wǎng)絡(luò)設(shè)備進行網(wǎng)絡(luò)互連的過程中，解決疑難問題和排除網(wǎng)絡(luò)故障的技術(shù)專著。本書共由5大部分和4個附錄組成，全面介紹了Cisco網(wǎng)絡(luò)設(shè)備各種故障診斷工具的使用方法和各種網(wǎng)絡(luò)互聯(lián)故障的排除方法。主要內(nèi)容包括：故障診斷方法學(xué)、多種流行網(wǎng)絡(luò)協(xié)議介紹、常用的故障排除儀器介紹、Cisco網(wǎng)絡(luò)設(shè)備的尋徑和交換過程、Cisco網(wǎng)絡(luò)管理和故障診斷工具、TCP／IP連通性故障排除。Novell連通性故障排除、AppleTalk連通性故障排除、園區(qū)交換機和VLAN故障排除、幀中繼故障排除以及ISDNBM故障排除等。本書不僅適合從事互連網(wǎng)絡(luò)建設(shè)與管理的工程技術(shù)人員閱讀和參考，也適合為獲得CCNP證書而參加“CiscoIntemetworkTroubleshooting”（CIT）考試的讀者學(xué)習(xí)。基于同名的Cisco培訓(xùn)課程，本書教你如何完成Cisco路由器和交換機的基本硬件維護和故障診斷。如果參加CCNP認證，并準備參加CIT考試，本書是你最佳的選擇。隨著更先進技術(shù)和功能加入到通信基礎(chǔ)結(jié)構(gòu)中，管理和維護網(wǎng)絡(luò)的工作變得越來越難，互連網(wǎng)絡(luò)失敗的花費也越來越高。本書提供了系統(tǒng)的和合理的方法，以保持當’今復(fù)雜網(wǎng)絡(luò)的正常運行。本書主要介紹了：故障診斷的工具和方法，路由選擇和被動路由協(xié)議故障診斷與排除，校園交換和VLAN故障診斷與排除，以及WAN故障診斷與排除?！禖isco互連網(wǎng)絡(luò)故障診斷與排除》提供了有關(guān)TCPAP、NetWareIPX／SPX、AppleTalkLAN和WAN的連網(wǎng)技術(shù)、實踐和故障診斷與排除的從初級到高級的技術(shù)。配置實例示范了故障診斷和排除方面的技巧。問題解決檢查列表和工作表有助于你組織故障診斷和排除的步驟并編制文檔。你還將找到有關(guān)使用Cisco技術(shù)支持的有用信息，章末的問題與練習(xí)有助于你評估對關(guān)鍵概念的理解，從而幫助你顧利通過CCNP認證?！鰩椭鷧⒓覥CNP認證的人員掌握在TCP／IP、NetWareIPX／XPX和AppleTalk壞境中診斷故障的方法?！鰬?yīng)用一個通用的問題解決模型來識別通信和配置錯誤。■學(xué)習(xí)基本的分組結(jié)構(gòu)和Cisco路由器功能，包括路由和交換處理器機制，以及各種級別駐留在路由器中的緩存。■找到合適的診斷命令和工具，以解決Catalyst交換機和VLAN通信，以及朗中繼和ISDNBRIWAN技術(shù)方面的難題。

作者簡介

暫缺《Cisco互連網(wǎng)絡(luò)故障診斷與排除：英文版》作者簡介

圖書目錄

Part 1 : Troubleshooting Tools and Methodology
Chapter 1 Troubleshooting Methodology 4
      Using a Systematic Troubleshooting Method 5
      The Complexity of Intemetworks 6
      The Problem-Solving Model 8
      Step 1 : Define the Ptoblem IO
      Step 2: Gadler the Facts 12
      Step 3: Consider tlle Possibilities l 2
      Step 4: Create an Action Plan 14
      Step 5: Implement the Action Plan 15
      Step 6: Observe the Results of the Action Plan 16
      Step 7: Repeat the Problem-Solving Process 16
      Step 8: Resolve the Ptoblem 18
      Pteparing Yourself to Troubleshoot 18
      Summary 20
      Chapter l Test 21
Chapter 2 Protocol Characteristics Overview 24
      Basic Ptotocol Characteristics 25
      Connection-Oriented Services 26
      Connectionless Services 27
      Sanlple Connection Sequences 28
      Detailed Ptotocol Characteristics 33
      Connection-Oriented Versus Connectionless Ptotocols 35
      OSI Layer 2 Characteristics 39
      OSI Layers 3 to 7 Characteristics-Routed Protocols and Routing Ptotocols 92
      Summary 145
      Chapter 2 Test 146
Chapter a Cisco Routing and Switching Processes 150
      Rooting 151
      Switching 15 3
      Basic Switching Paths 154
      Sample Packet Flow 159
      Switching Features That Affect Perfornlance 162
      Ptocess Switching 164
      System Buffering and Queuing 165
      Input and Output Queues 167
      Interface Buffers 168
      Summary 169
      Chapter 3 Test 170
Chapter 4 General Troubleshooting Tools 172
      Low-End Cable Test Equipment 173
      High-End Cable Testers 175
      Digital Interface Testing Tools 176
      Network Monitors 177
      hotocol Analyzers 178
      Network Maltagement Systems 180
      Simulation and Modeling Tools 182
      Summary 182
      Chapter 4 Test 183
Chapter 5 Cisco Management and Diagnostic Tools 186
      Cisco Maxlagement Tools 187
      CiscoWorks 187
      The Netsys Network Management Suites 190
      TraflicDirector Remote Monitoring Sofiware 192
      The VlanDirector Switch Management Application 194
      WAN Manager 195
      Cisco Diagnostic Commands 196
      show Commands 198
      debug Commands 221
      ping and uace Commands 229
      The cdp Command 240
      Core Dumps 252
      Summary 253
      Chapter 5 Test 254
Chapter 6 Troubleshooting Sample Exercises 256
      Exercise 1: A Token Ring Network 257
      Exercise 2: The Sydney Router 259
      Exercise 3: The Brussels Router 262
      Sunlmary 270
Pan II: Routing and Routed Protocol Troubleshooting
Chapter 7 Troubleshooting TCP/IP Connectivity 274
      TCP/IP Router Diagnostic Tools 275
      The TCP/IP ping Command 275
      The TCP/IP trace Command 280
      TCP/m show Commands 282
      TCP/TP debug Commands 294
      Problem Isolation in TCP/P Networks 302
      Symptom: Users Can Access Some Hosts but Not OdTers 303
      Symptom: Users Cannot Connect When One Redundant Path Is Down 305
      Troubleshooting IP Intemetworking with Windows NT 306
      Browsing Problems 307
      TCP/IP Symptoms and Problems 308
      TCP/IP Problems and Action Plans 309
      pinging Your Loopback and Local IP Addresses 313
      pinging Your Cisco Router 313
      pinging the DNS Server, Default Gateway, and
      pinging the Remote Target IP Address 314
      The tracert Tool 314
      Checking the Routing Table on a Windows NT System 315
      Clearing the Windows NT System
      DNS Configuration 316
      The HOSTS File 317
      The LMHOSTS File 317
      .
      Winsock Proxy hoblems 3 17
      Summary 3 18
      Chapter 7 Test 319
Chapter 8 Troubleshooting Novell Connectivity 322
      Novell NetWare Router Diagnostic Tools 323
      The IPX ping Command 323
      The IPX sllow Commands 324
      The IPX debug Commands 338
      Problem Isolation in NetWare Networks 345
      NetWare Symptoms and Problems 347
      Troubleshooting Encapsulation Mismatches 348
      NetWare Problems and Action Plans 349
      Summary 352
      Chapter 8 Test 353
Chapter 9 Troubleshooting AppleTalk Connectivity 356
      AppleTalk Router Diagnostic Commands 357
      AppleTalk show Commands 357
      NBP Testing 374
      AppleTalk debug Commands 376
      Problem Isolation in AppleTalk Networks 385
      AppleTalk Symptoms and Ptoblems 386
      AppleTalk hoblems and Action Plans 388
      AppleTalk Intemetworking Configuration Tips 392
      Summary 393
      Chapter 9 Test 394
Pan III: Campus Switch and VLAN Troubleshooting
Chapter 10 Diagnosing and Correcting Catalyst Problems 398
      Catalyst Series Overview 399
      Catalyst 5000 Intemal Architecture 401
      Catalyst Switching Technology 404
      Spanning-Tree Review 406
      VLAN Fralne Tagging with ISL 408
      Catalyst 5000"Troubleshooting Tools 415
      Troubleshooting Catalyst Switch LEDs 41 8
      Catalyst 5000 Switch Diagnostic Tools: ping 421
      CDP 421
      SPAN 423
      Catalyst Commands 425
      show Conlmands for System Senings 426
      show Commands for Switch Conffguration 430
      Problem Isolation in Catalyst Networks 437
      Catalyst Symptoms and Ptoblems 438
      Sunlmary 439
      Chapter IO Test 440
Chapter 11 Troubleshooting VLANs on Routers and Switches 442
      VLANs on Routed aJld Switched Networks 444
      VLAN Switching, Translation, and Routing 445
      The Router's Layer 2 Translation Function 447
      Cisco IOS Fast Ethemet Troubleshooting 447
      VLAN Troubleshooting Issues 450
      VLAN Design Issues 450
      Router Functionality in a Switched Network 451
      CDP 452
      Using Telnet to a Switch on a Different Subnet 452
      Router VLAN show Commands 453
      The show vlan Command 454
      The show span Command 455
      Router VLAN debug Commands 457
      The debug vlan packet Command 457
      The debug span Command 458
      Problem Isolation in Router/Switch VLAN Networks 460
      Troubleshooting Example: Dropped Packets and Loops 460
      Router VLAN Symptoms and Ptoblems 462
      Summary 463
      Chapter 11 Test 464
      .
      Pan IV: WAN Troubleshooting
      Chapter 1 2 Diagnosing and Correcting Frame Relay Problems 468
      Troubleshooting Frame Relay 469
      Frame Relay Frame Fonnat 471
      Problem Isolation in Frame Relay WANs 471
      Overview of Troubleshooting Con2mands 474
      WAN and Frame Relay Diagnostic Tools 475
      The Frame Relay show Commands 475
      The Frame Relay debug Commands 480
      Frame Relay Loopback Tests 485
      Summary 485
      Chapter 12 Test 486
Chapter 13 Diagnosing and Correcting ISDN BRI Problems 488
      Problem Isolation in ISDN BRI Networks 489
      Overview of Troubleshooting Commands 493
      ISDN BRI Diagnostic Tools 493
      ISDN BRI show Commands 493
      ISDN BRI debug Commands 505
      Sunlmary 525
      Chapter 13 Test 526
Pan V: Appendixes
Appendix A Chapter Test Answer Key 530
      Chapter 1: "Troubleshooting Methodology" 531
      Chapter 2: "Ptotocol Characteristics Overview" 532
      Chapter 3: "Cisco Routing and Switching Processes" 533
      Chapter 4: "General Troubleshooting Tools" 534
      Chapter 5: "Cisco Management and Diagnostic Tools" 534
      Chapter 6: "froubleshooting Sample Exercises" 535
      Exercise 1: Token Ring Network 535
      Exercise 2: Sydney Network 536
      Exercise 3: Brussels Network 536
      Chapter 7: "Troubleshooting TCPnP Connectivity" 537
      Chapter 8: "Troubleshooting Novell Connectivity" 538
      Chapter 9: "Troubleshooting AppleTalk Connectivity" 538
      Chapter 10: "Diagnosing and Correcting Catalyst hoblems" 539
      Chapter 11: "Troubleshooting VLANs on Routers and Switches" 539
      Chapter 12: "Diagnosing and Comecting Frallle Relay hoblems" 540
      Chapter 13: "Diagnosing and Conecting ISDN BRI Problems" 540
Appendix B Cisco Suppon Functions 542
      Using CCO to Prevent Problems 545
      Cisco Documentation 546
      Cisco Ptess 547
      CCO MarketPlace 547
      CCO Software Center 548
      Using CCO to Correct Problems 548
      Cisco's Bug Toolkit n 549
      CCO Troubleshooting Engine 549
      CCO Stack Decoder 550
      CCO Open Forum 550
      TAC 551
      CCO Training Infonnation 553
      Summary 553
Appendix C References and Recommended Reading 554
      Books and Periodicals 555
      Technical Publications and Standards 557
Appendix D Problem-Solving Checklist and Worksheet 562
      Troubleshooting Checklist 563
      Troubleshooting Worksheet 564
Index 570

作　者：	(美)Laura Chappell，(美)Dan Farkas編著
出版社：	人民郵電出版社
叢編項：	Cisco職業(yè)認證培訓(xùn)系列
標　簽：	互連網(wǎng)絡(luò) 故障診斷英文

ISBN：	9787115111807	出版時間：	2003-01-01	包裝：	精裝
開本：	23cm	頁數(shù)：	604	字數(shù)：

Cisco互連網(wǎng)絡(luò)故障診斷與排除：英文版

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內(nèi)容簡介

作者簡介

圖書目錄

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