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King Arthur would have been just another king if he was content to just sit at home. And Rome would never have been founded if Remus had won the famous battle instead of his brother. From the epic defeat of the Minotaur to the fierce legends of the Inca, battles and quests are the lifeblood of mythology, and this collection thrusts readers right into the heart of some of the best (and bloodiest) adventure stories from around the world.

Tabla de contenidos provista por Syndetics

• Preface(p. xiii)
• Acknowledgments(p. xiv)
• Chapter 1 A Structured Approach to Cisco Troubleshooting(p. 1)
• Introduction(p. 2)
• Troubleshooting Methodology(p. 3)
• The Complexity of Internetworks(p. 3)
• The Problem-Solving Model(p. 4)
• Information and Documentation Checklist(p. 9)
• Cisco Troubleshooting Resources(p. 12)
• Cisco Connection Online(p. 12)
• Technical Assistance Center(p. 12)
• Other Cisco Resources(p. 13)
• Chapter 2 Network Testing, Management, and Analysis(p. 15)
• Introduction(p. 16)
• Physical Layer Test Equipment Cable Testers(p. 16)
• Digital Interface Testing(p. 19)
• Time Domain Reflectometry (TDR)(p. 20)
• Network Management and Why It Is Useful(p. 21)
• SNMP Overview(p. 22)
• SNMP on Cisco Routers and Switches(p. 24)
• Network Monitoring(p. 25)
• Remote Monitoring (RMON)(p. 26)
• Network Analysis(p. 28)
• Protocol Analysis(p. 28)
• Packet Analysis and the Sniffer(p. 29)
• Network Management Packages and Platforms(p. 39)
• CiscoWorks Network Management Software(p. 39)
• CiscoWorks for Switched Internetworks(p. 39)
• Chapter 3 Cisco's Diagnostic Tools(p. 43)
• Introduction(p. 44)
• Router Functionality and Architecture(p. 44)
• The Routing Function(p. 44)
• The Switching Function(p. 45)
• Cisco 7000 Series Router Architecture(p. 45)
• Cisco 7500 Series Router Architecture(p. 47)
• Cisco 4000/2500 Series Architecture(p. 48)
• Process-Switched Packet Flow on a 7000 Series Router(p. 49)
• Fast Switching and Caching Technology(p. 50)
• Fast Switching(p. 51)
• Autonomous Switching(p. 51)
• Silicon Switching(p. 52)
• New Switching Technologies(p. 52)
• Special Route Processor Functions(p. 53)
• Queuing and Buffering on the Cisco 7000(p. 54)
• Buffer Parameters(p. 56)
• Interface Hold Queues(p. 57)
• Interface Buffers(p. 57)
• The show buffers Command(p. 58)
• Queuing and Buffering on the Cisco 4000/2500(p. 59)
• Troubleshooting Commands(p. 59)
• Show Commands(p. 61)
• Debug Commands(p. 86)
• Ping Commands(p. 92)
• The trace Command(p. 101)
• Understanding Cisco Error Messages(p. 105)
• Error Message Format(p. 105)
• Traceback Reports(p. 106)
• Logging of Error Messages and Event Information(p. 106)
• Core Dumps(p. 109)
• Chapter 4 WAN Media I: Troubleshooting Serial Lines and X.25(p. 117)
• Introduction(p. 118)
• Troubleshooting HDLC Serial Links(p. 118)
• The show interface Command(p. 118)
• CSU/DSU Loopback Tests(p. 124)
• The show controllers Command(p. 126)
• The show buffers Command(p. 127)
• The debug serial interface Command(p. 127)
• Modem Connectivity(p. 129)
• The show line Command(p. 130)
• Troubleshooting X.25 Connectivity(p. 132)
• Show Commands(p. 134)
• The debug x25 events Command(p. 139)
• Troubleshooting Dynamic Routing over X.25(p. 144)
• Chapter 5 WAN Media II: Troubleshooting Frame Relay(p. 151)
• Introduction(p. 152)
• Understanding the Basics(p. 152)
• Different Encapsulation Types(p. 152)
• Different LMI Types(p. 153)
• DLCI Mapping(p. 154)
• Subinterfaces in Frame Relay(p. 157)
• Point-to-Point versus Multipoint(p. 157)
• Routing over Frame Relay(p. 159)
• Split Horizon(p. 159)
• Issues Created by the Nonbroadcast Medium(p. 160)
• Frame Relay Show Commands(p. 160)
• The show interface Command(p. 160)
• The show frame-relay Imi command(p. 162)
• The show frame-relay pvc Command(p. 162)
• The show frame-relay map Command(p. 164)
• Frame-Relay Debug Commands(p. 165)
• The debug frame-relay Imi Command(p. 165)
• The debug frame-relay events Command(p. 165)
• The debug frame-relay packet Command(p. 168)
• Congestion Control and Traffic Shaping(p. 168)
• Discard Eligible Lists(p. 170)
• Broadcast Queuing(p. 173)
• DLCI Prioritization(p. 175)
• Frame-Relay Troubleshooting Scenarios(p. 176)
• Scenario 1 Parameter Mismatches(p. 176)
• Scenario 2 Multipoint and Inverse ARP(p. 192)
• Scenario 3 Routing over Frame Relay(p. 200)
• Chapter 6 Troubleshooting ISDN Connectivity(p. 211)
• Introduction(p. 212)
• ISDN Configuration Issues(p. 212)
• ISDN Switch Type(p. 212)
• Service Profile Identifiers (SPIDs)(p. 213)
• Dialer Map Statements(p. 214)
• Dialer Lists(p. 216)
• PPP and Multilink PPP(p. 218)
• Using ISDN for Backup(p. 220)
• ISDN-Related Routing Problems(p. 222)
• ISDN Sample Configuration(p. 223)
• ISDN Show Commands(p. 225)
• Show Interface--D-Channel(p. 225)
• Show Interface--B-Channels(p. 226)
• The show ISDN status Command(p. 228)
• The show dialer Command(p. 229)
• The show isdn memory Command(p. 231)
• ISDN Debug Commands(p. 231)
• The debug isdn q921 Command(p. 232)
• The debug isdn q931 Command(p. 233)
• The debug isdn events Command(p. 235)
• The debug dialer Command(p. 235)
• The debug ppp authentication Command(p. 239)
• The debug ppp negotiation Command(p. 241)
• ISDN Troubleshooting Summary(p. 245)
• Chapter 7 IP I: Static, RIP, IGRP, EIGRP(p. 249)
• Introduction(p. 250)
• TCP/IP Diagnostic Commands(p. 250)
• Ping and Trace Commands(p. 250)
• Ping Commands(p. 250)
• Trace Commands(p. 254)
• Show Commands(p. 258)
• Debug Commands(p. 258)
• Fault Resolution TCP/IP(p. 260)
• LAN Connectivity Problems(p. 261)
• Designating IP Addresses(p. 262)
• ARP(p. 263)
• IP Name Resolution(p. 264)
• WAN Connectivity Issues(p. 267)
• The Default Gateway(p. 267)
• Static and Dynamic Routing(p. 268)
• Proxy ARP(p. 268)
• IP Access Lists(p. 269)
• Standard Access Lists(p. 269)
• Extended Access Lists(p. 271)
• Internet Control Message Protocol(p. 275)
• Troubleshooting RIP(p. 278)
• RIP--the Old and the New(p. 278)
• Show Commands(p. 280)
• Debug Commands(p. 283)
• Troubleshooting Scenarios for RIP--Part I(p. 285)
• Troubleshooting Scenarios for RIP--Part II(p. 287)
• Troubleshooting IGRP(p. 296)
• Show Commands(p. 297)
• Debug Commands(p. 300)
• Troubleshooting Scenarios for IGRP(p. 300)
• Troubleshooting IP EIGRP(p. 311)
• EIGRP Characteristics(p. 311)
• IP EIGRP Show Commands(p. 318)
• Debugging IP EIGRP(p. 323)
• Troubleshooting Scenarios for EIGRP(p. 326)
• Chapter 8 IP II: Troubleshooting OSPF and BGP(p. 341)
• Introduction(p. 342)
• Troubleshooting OSPF(p. 342)
• OSPF Characteristics(p. 342)
• Neighbor and Adjacency Formation(p. 342)
• OSPF Network Types(p. 344)
• Rules for OSPF Areas(p. 349)
• Route Summarization(p. 350)
• OSPF Demand Circuit(p. 351)
• OSPF Show Commands(p. 352)
• Debugging OSPF(p. 358)
• Troubleshooting Scenarios for OSPF(p. 360)
• Troubleshooting BGP(p. 381)
• BGP Characteristics(p. 382)
• Neighbor Formation(p. 382)
• External BGP(p. 384)
• Internal BGP(p. 385)
• The network Command(p. 387)
• BGP Attributes(p. 389)
• Synchronization(p. 392)
• BGP Route Selection(p. 392)
• BGP Show Commands(p. 393)
• Debugging BGP(p. 395)
• Troubleshooting Scenarios for BGP(p. 397)
• Redistribution Revisited(p. 419)
• Manipulating Route Metrics(p. 420)
• Applying Distribute Lists(p. 421)
• The Power of Route Maps(p. 425)
• Chapter 9 Troubleshooting Novell Connectivity(p. 435)
• Introduction(p. 436)
• Novell Client-Server Connection Sequence(p. 436)
• Novell Router Diagnostic Tools(p. 438)
• Ping(p. 438)
• Show Commands(p. 439)
• Debug Commands(p. 445)
• IPX Encapsulation Mismatches(p. 452)
• SAP, Route, and Access Filtering(p. 457)
• SAP Filtering(p. 457)
• Manipulating GNS Responses(p. 458)
• Route Filters(p. 461)
• IPX Access Filters(p. 462)
• Client-Server Remote Connectivity(p. 465)
• SAP Bandwidth Consumption(p. 467)
• IPX EIGRP(p. 468)
• Diagnostic Tools for IPX EIGRP(p. 469)
• EIGRP Distribute Lists(p. 472)
• NetBIOS over IPX(p. 473)
• IPX in the Wide-Area Network(p. 474)
• IPX over Frame Relay(p. 474)
• IPX over ISDN(p. 475)
• More IPX Troubleshooting Scenarios(p. 482)
• Chapter 10 Troubleshooting AppleTalk Connectivity(p. 497)
• Introduction(p. 498)
• AppleTalk Client-Server Connection Sequence(p. 498)
• AppleTalk Router Diagnostic Tools(p. 500)
• Ping Commands(p. 500)
• NBP Test Commands(p. 501)
• Show Commands(p. 502)
• Debug Commands(p. 507)
• Troubleshooting AppleTalk in the LAN(p. 512)
• AppleTalk Phase I and Phase II(p. 512)
• AppleTalk Filtering and Access Control(p. 514)
• Troubleshooting AppleTalk in the WAN(p. 516)
• AppleTalk over Frame Relay(p. 516)
• AppleTalk over ISDN(p. 520)
• AppleTalk EIGRP(p. 521)
• Tunneling in IP(p. 523)
• AppleTalk Troubleshooting Scenarios(p. 527)
• Chapter 11 Troubleshooting IBM Internetworking(p. 545)
• Introduction(p. 546)
• Remote Source-Route Bridging (RSRB)(p. 547)
• Traffic Control with RSRB(p. 547)
• RSRB Troubleshooting Tools(p. 552)
• LNM Commands(p. 558)
• SRB Debugging(p. 561)
• NetBios in an SRB Environment(p. 562)
• NetBios and Bandwidth Consumption(p. 562)
• SRB Troubleshooting Scenarios(p. 564)
• Data-Link Switching(p. 570)
• A Word about RIF Termination(p. 571)
• DLSW over Frame Relay(p. 572)
• DLSW and Ethernet(p. 572)
• Explorer and Traffic Filtering(p. 573)
• Advanced Features with DLSW(p. 574)
• Cisco Diagnostic Tools for DLSW(p. 578)
• DLSW Troubleshooting Scenarios(p. 587)
• Chapter 12 Troubleshooting Switched Ethernet(p. 601)
• Introduction(p. 602)
• Troubleshooting Tools on the Catalyst 5000/5500(p. 603)
• The ping Command(p. 603)
• Cisco Discovery Protocol (CDP)(p. 604)
• Show and Clear Commands(p. 605)
• Logging(p. 619)
• SPAN Analyzer Port(p. 620)
• SNMP on the Catalyst 5000(p. 623)
• Problems with VLANs(p. 624)
• The Default VLAN(p. 625)
• Trunking(p. 628)
• Inter-VLAN Communication(p. 630)
• Resolving IP-Related Problems(p. 632)
• IP Switch Configuration(p. 632)
• Routing and the RSM Module(p. 636)
• Issues with Spanning-Tree Protocol(p. 638)
• Configuring the Spanning-Tree Parameters(p. 638)
• The Portfast Option(p. 645)
• High-Bandwidth Features(p. 646)
• Full-Duplex Transmission(p. 646)
• Fast Etherchannel and Gigabit Etherchannel(p. 647)
• Switch Security(p. 651)
• Port Security(p. 651)
• Telnet Restrictions(p. 651)
• More Switched Ethernet Troubleshooting Scenarios(p. 652)
• Problem Definition(p. 652)
• Chapter 13 Laboratory Exercises(p. 663)
• Introduction(p. 664)
• Exercise 1 Router Disaster Recovery(p. 664)
• Exercise 2 IGRP/EIGRP Routing Problem Scenario(p. 665)
• Exercise 3 RIP/OSPF Routing Problems(p. 673)
• Exercise 4 BGP Routing Problem Scenario(p. 679)
• Exercise 5 DLSW+ Fault Scenarios(p. 684)
• Exercise 6 IPX RIP/EIGRP Fault Scenario(p. 689)
• Appendix Answers to Chapter Review Questions(p. 695)
• Index(p. 709)