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Authorized Self-Study Guide Building Scalable Cisco Internetworks (BSCI), Third Edition

by Diane Teare, Catherine Paquet

December 2006

Intermediate to advanced

864 pages

23h 39m

English

Cisco Press

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Dedications
Icons Used in This BookCommand Syntax Conventions
Who Should Read This BookWhat’s New in This EditionObjectives of This BookSummary of ContentsOnline MaterialConfiguration Exercises and Review QuestionsAuthor’s Notes, Key Points, Sidebars, and Cautions
Converged NetworksCisco Intelligent Information NetworkCisco Service-Oriented Network Architecture FrameworkCisco Enterprise ArchitectureCisco Hierarchical Network ModelCisco Enterprise Composite Network ModelRouting and Routing Protocols Within the Enterprise Composite Network ModelSummaryReview Questions
IP Routing OverviewPrinciples of Static RoutingConfiguring a Static RouteConfiguring a Static Default RoutePrinciples of Dynamic RoutingPrinciples of On-Demand RoutingConfiguring ODRCharacteristics of Routing ProtocolsDistance Vector, Link-State, and Hybrid Routing ProtocolsClassful Routing Protocol ConceptsClassful Routing Protocol BehaviorSummarizing Routes in a Discontiguous NetworkThe ip classless CommandClassless Routing Protocol ConceptsRIPv2 and EIGRP Automatic Network-Boundary SummarizationRIPCharacteristics of RIPv1Characteristics of RIPv2RIP Configuration CommandsIP Routing Protocol ComparisonsAdministrative DistanceFloating Static RoutesCriteria for Inserting Routes in the IP Routing TableComparing Routing ProtocolsSummaryConfiguration Exercise: Basic Configuration and Migrating to a Classless Routing ProtocolObjectivesVisual ObjectiveCommand ListTask 1: Setting Up the Edge RoutersTask 2: Setting Up the Internal RoutersTask 3: Exploring Classful RoutingTask 4: Exploring Classless ForwardingTask 5: Optimizing Classless Routes for ScalabilityExercise VerificationReview Questions

EIGRP OverviewEIGRP Capabilities and AttributesUnderlying Processes and TechnologiesEIGRP Terminology and OperationEIGRP TerminologyPopulating EIGRP TablesEIGRP PacketsEIGRP Hello PacketsEIGRP NeighborsNeighbor TableEIGRP ReliabilityInitial Route DiscoveryRoute SelectionEIGRP Metric CalculationEIGRP Metric Calculation ExampleRouting Table and EIGRP DUALAdvertised Distance and Feasible DistanceSuccessor and Feasible SuccessorDUAL ExampleConfiguring and Verifying EIGRPBasic EIGRP ConfigurationBasic EIGRP Configuration ExampleEIGRP Configuration Example Using the Wildcard MaskConfiguring the ip default-network Command for EIGRPRoute SummarizationConfiguring Manual Route SummarizationEIGRP Load BalancingEIGRP and WAN LinksEIGRP Link UtilizationExamples of EIGRP on WANsConfiguring EIGRP AuthenticationRouter AuthenticationEIGRP MD5 AuthenticationConfiguring MD5 AuthenticationMD5 Authentication Configuration ExampleVerifying MD5 AuthenticationTroubleshooting MD5 AuthenticationExample of Successful MD5 AuthenticationExample of Troubleshooting MD5 Authentication ProblemsUsing EIGRP in an Enterprise NetworkEIGRP ScalabilityEIGRP Route SummarizationEIGRP Queries and Stuck-in-ActivePreventing SIA ConnectionsEIGRP Query RangeLimiting the EIGRP Query RangeLimiting Query Range with SummarizationLimiting Query Range Using a StubGraceful ShutdownVerifying EIGRP Operationshow ip route and show ip route eigrp for EIGRP Examplesshow ip protocols Exampleshow ip eigrp interfaces Exampleshow ip eigrp topology Exampleshow ip eigrp traffic Exampledebug eigrp packets Examplesdebug ip eigrp ExamplesSummaryReferencesConfiguration Exercise: Configuring and Tuning EIGRPExercise ObjectivesVisual ObjectiveCommand ListTask 1: Configuring Basic EIGRPTask 2: Configuring EIGRP SummarizationTask 3: Configuring the EIGRP StubTask 4: Configuring an EIGRP Default RouteExercise VerificationReview Questions
OSPF Protocol OverviewLink-State Routing ProtocolsOSPF Area StructureOSPF AreasArea TerminologyOSPF AdjacenciesOSPF Metric CalculationLink-State Data StructuresOSPF PacketsEstablishing OSPF Neighbor Adjacencies: HelloExchange Process and OSPF Neighbor Adjacency StatesMaintaining Routing InformationOSPF Link-State Sequence NumbersConfiguring Basic OSPF RoutingSingle-Area OSPF Configuration ExampleMultiarea OSPF Configuration ExampleVerifying OSPF OperationsThe show ip route ospf CommandThe show ip ospf interface CommandThe show ip ospf neighbor CommandThe debug ip ospf events CommandOSPF Router IDLoopback InterfacesOSPF router-id CommandVerifying the OSPF Router IDOSPF Network TypesTypes of OSPF NetworksAdjacency Behavior for a Point-to-Point LinkAdjacency Behavior for a Broadcast NetworkElecting a DR and BDRSetting Priority for the DR ElectionAdjacency Behavior for a Nonbroadcast Multiaccess NetworkDR Election in an NBMA TopologyOSPF over Frame Relay Configuration OptionsOSPF over NBMA Topology Modes of OperationSelecting the OSPF Network Type for NBMA NetworksOSPF Broadcast Mode ConfigurationOSPF Nonbroadcast Mode ConfigurationOSPF Configuration in Point-to-Multipoint ModeCisco Point-to-Multipoint Nonbroadcast ModeUsing Subinterfaces in OSPF over Frame Relay ConfigurationPoint-to-Point SubinterfacesMultipoint SubinterfacesOSPF Mode SummaryDisplaying OSPF Adjacency ActivitySummaryReferencesConfiguration Exercise: Configuring and Examining OSPF in a Single AreaExercise ObjectiveVisual ObjectiveCommand ListTask 1: Cleaning UpTask 2: Configuring Single-Area OSPF Within Your PodTask 3: Configuring a Stable OSPF Router IDTask 4: Observing the OSPF ProcessTask 5: Observing OSPF DR and BDR ElectionsExercise VerificationReview Questions
Types of OSPF Routers and LSAsTypes of OSPF RoutersOSPF LSA TypesLSA Type 1: Router LSALSA Type 2: Network LSALSA Type 3: Summary LSALSA Type 4: Summary LSALSA Type 5: External LSAInterpreting the OSPF LSDB and Routing TableOSPF LSDBOSPF Routing Table and Types of RoutesCalculating the Costs of E1 and E2 RoutesConfiguring OSPF LSDB Overload ProtectionChanging the Cost MetricOSPF Route SummarizationConfiguring OSPF Route Summarization on an ABRConfiguring OSPF Route Summarization on an ASBRRoute Summarization Configuration Example at an ABRRoute Summarization Configuration Example at an ASBRCreating a Default Route in OSPFThe default-information originate CommandOSPF Special Area TypesConfiguring Stub AreasConfiguring Totally Stubby AreasInterpreting Routing Tables in Different Types of OSPF AreasConfiguring NSSAsVerifying All Area TypesOSPF Virtual LinksConfiguring OSPF Virtual LinksVerifying OSPF Virtual Link OperationConfiguring OSPF AuthenticationTypes of AuthenticationConfiguring Simple Password AuthenticationSimple Password Authentication ExampleVerifying Simple Password AuthenticationTroubleshooting Simple Password AuthenticationSuccessful Simple Password Authentication ExampleExample: Troubleshooting Simple Password Authentication ProblemsConfiguring MD5 AuthenticationMD5 Authentication ExampleVerifying MD5 AuthenticationTroubleshooting MD5 AuthenticationSuccessful MD5 Authentication ExampleExample: Troubleshooting MD5 Authentication ProblemsSummaryReferencesConfiguration Exercise 5-1: Configuring OSPF for Multiple Areas and Frame Relay NonbroadcastObjectivesVisual ObjectiveCommand ListTask: Using the Nonbroadcast Network Type over Frame RelayExercise VerificationConfiguration Exercise 5-2: Configuring OSPF for Multiple Areas and Frame Relay Point to Multipoint and Point to PointObjectivesVisual ObjectiveCommand ListTask 1: Cleaning UpTask 2: Configuring OSPF over Frame Relay Using the Point-to-Multipoint OSPF Network TypeTask 3: Configuring OSPF over Frame Relay Using the Point-to-Point OSPF Network TypeExercise VerificationConfiguration Exercise 5-3: Tuning OSPFObjectivesVisual ObjectiveCommand ListTask 1: Examining the OSPF DatabaseTask 2: Configure OSPF Route SummarizationTask 3: Configure an OSPF Stub AreaExercise VerificationReview Questions
Introducing IS-IS and Integrated IS-IS RoutingIS-IS RoutingIS-IS Routing LevelsIS-IS RoutersIntegrated IS-IS RoutingIntegrated IS-IS Design PrinciplesIssues with Integrated IS-ISThe ES-IS ProtocolOSI Routing LevelsLevel 0 (L0) RoutingIS-IS L1 RoutingIS-IS L2 RoutingLevel 3 (L3) RoutingComparing IS-IS to OSPFIS-IS HistorySimilarities Between IS-IS and OSPFDifferences Between Integrated IS-IS and OSPFArea DesignAdvantages of Integrated IS-ISAdvantages of OSPFSummary of Differences Between OSPF and Integrated IS-ISIS-IS Routing OperationNSAP AddressesIntegrated IS-IS NSAP Address StructureIS-IS Area AddressesIS-IS System IDNET AddressesIS-IS Router OperationIntra-Area and Interarea Addressing and RoutingIS-IS Routing ExamplesRoute LeakingOSI and IS-IS PDUsOSI PDUsIS-IS PDUsIS-IS LSPsLSP Sequence NumberLSP Remaining LifetimeLSP TLVsImplementing IS-IS in Different Network TypesImplementing IS-IS in Nonbroadcast Multiaccess (NBMA) NetworksImplementing IS-IS in Broadcast NetworksPseudonode and DISLSPs and IIHsL1 and L2 LSPsL1 and L2 IIHsSummary of Differences Between Broadcast and Point-to-Point ModesLink-State Database SynchronizationLSP FloodingLSDB SynchronizationLSDB Synchronization on a LAN ExampleLSDB Synchronization on Point-to-Point Links ExampleLAN AdjacenciesWAN AdjacenciesConfiguring Integrated IS-ISIntegrated IS-IS in a CLNS EnvironmentBuilding an OSI Routing TableBuilding an IP Routing TableIntegrated IS-IS ConfigurationStep 1: Define the Area and AddressingStep 2: Enable IS-IS on the RouterStep 3: Configure the NETStep 4: Enable Integrated IS-IS on InterfacesSimple Integrated IS-IS ExampleOptimizing IS-ISChanging the IS-IS Router LevelChanging the IS-IS Interface LevelChanging the IS-IS MetricTuning IS-IS ExampleConfiguring IP Route Summarization in IS-ISVerifying IS-IS Configuration and StructuresVerifying IS-IS ConfigurationVerifying CLNS IS-IS StructuresTroubleshooting Commands: CLNSTroubleshooting Commands: CLNS and IS-ISOSI Intra-Area and Interarea Routing ExampleLevel 1 and Level 2 Topology TableThe CLNS ProtocolCLNS NeighborsCLNS InterfaceSummaryConfiguration Exercise: Configuring Integrated IS-IS in Multiple AreasObjectivesVisual ObjectiveCommand ListTask 1: Cleaning Up and PreparingTask 2: Configuring Integrated IS-IS in Multiple AreasExercise VerificationReview Questions
Using Multiple IP Routing ProtocolsConsiderations When Migrating to Another Routing ProtocolPlanning and Implementing a New IP Address AllocationConfiguring a Secondary IP AddressMigrating to a New Routing ProtocolRedistribution OverviewRedistribution Implementation ConsiderationsSelecting the Best RouteAdministrative DistanceSeed MetricsDefault Seed MetricsRedistribution TechniquesConfiguring RedistributionThe redistribute Command for RIPThe redistribute Command for OSPFThe redistribute Command for EIGRPThe redistribute Command for IS-ISThe default-metric CommandThe passive-interface CommandRoute Redistribution ExampleControlling Routing Update TrafficStatic and Default RoutesUsing Distribute Lists to Control Routing UpdatesDistribute List ProcessingConfiguring Distribute ListsIP Route Filtering with Distribution List Configuration ExampleControlling Redistribution with Distribute ListsUsing Route Maps to Control Routing UpdatesRoute Map ApplicationsUnderstanding Route MapsConfiguring Route MapsUsing Route Maps with RedistributionRoute Maps to Avoid Route FeedbackUsing Administrative Distance to Influence the Route-Selection ProcessSelecting Routes with Administrative DistanceModifying Administrative DistanceAn Example of Redistribution Using Administrative DistanceVerifying Redistribution OperationConfiguring DHCPDHCP OverviewDHCP OperationDHCP BindingsAttribute InheritanceDHCP Options and SuboptionsConfiguring a DHCP ServerPreparing for DHCP ConfigurationDHCP Server Configuration TasksDHCP Server Configuration CommandsDHCP Server ExampleDHCP Server Options Import ExampleConfiguring a DHCP Relay AgentIP Helper AddressesDHCP Relay Agent Configuration TasksDHCP Relay Agent Configuration CommandsConfiguring a DHCP ClientVerifying DHCPSummaryConfiguration Exercise 7-1: Configuring Basic RedistributionExercise ObjectivesVisual ObjectiveCommand ListTask 1: Cleaning UpTask 2: Setting Up the Routing ProtocolsTask 3: Configuring Basic RedistributionTask 4: Filtering Routing UpdatesExercise VerificationConfiguration Exercise 7-2: Tuning Basic RedistributionObjectivesVisual ObjectiveCommand ListTask 1: Tuning Basic Redistribution with Route MapsTask 2: Filtering Routing UpdatesExercise VerificationReview Questions
BGP Terminology, Concepts, and OperationAutonomous SystemsBGP Use Between Autonomous SystemsComparison with Other Scalable Routing ProtocolsUsing BGP in an Enterprise NetworkBGP Multihoming OptionsMultihoming with Default Routes from All ProvidersMultihoming with Default Routes and Partial Table from All ProvidersMultihoming with Full Routes from All ProvidersBGP Path Vector CharacteristicsWhen to Use BGPWhen Not to Use BGPBGP CharacteristicsBGP Neighbor RelationshipsExternal BGP NeighborsInternal BGP NeighborsIBGP on All Routers in a Transit PathIBGP in a Transit ASIBGP in a Nontransit ASBGP Partial-Mesh and Full-Mesh ExamplesTCP and Full MeshRouting Issues if BGP Not on in All Routers in a Transit PathBGP SynchronizationBGP TablesBGP Message TypesBGP AttributesWell-Known AttributesOptional AttributesDefined BGP AttributesThe AS-Path AttributeThe Next-Hop AttributeThe Origin AttributeThe Local Preference AttributeThe Community AttributeThe MED AttributeThe Weight Attribute (Cisco Only)The Route Selection Decision ProcessConfiguring BGPPeer GroupsEntering BGP Configuration ModeDefining BGP Neighbors and Activating BGP SessionsShutting Down a BGP NeighborDefining the Source IP AddressEBGP MultihopChanging the Next-Hop AttributeDefining the Networks That BGP AdvertisesBGP Neighbor AuthenticationConfiguring BGP SynchronizationResetting BGP SessionsHard Reset of BGP SessionsSoft Reset of BGP Sessions OutboundSoft Reset of BGP Sessions InboundInbound Soft Reset Using Stored InformationRoute Refresh: Dynamic Inbound Soft ResetBGP Configuration ExamplesBasic BGP ExamplePeer Group ExampleIBGP and EBGP ExampleVerifying and Troubleshooting BGPshow ip bgp Command Output Exampleshow ip bgp rib-failure Command Output Exampleshow ip bgp summary Command Output Exampledebug ip bgp updates Command Output ExampleUnderstanding and Troubleshooting BGP Neighbor StatesIdle State TroubleshootingActive State TroubleshootingEstablished StateBasic BGP Path Manipulation Using Route MapsBGP Path ManipulationThe Path-Selection Decision Process with a Multihomed ConnectionSetting Local PreferenceChanging Local Preference for All RoutesLocal Preference ExampleChanging Local Preference Using Route MapsSetting the MED with Route MapsChanging the MED for All RoutesChanging the MED Using Route MapsConfiguring WeightImplementing BGP in an Enterprise NetworkSummaryReferencesConfiguration Exercise 8-1: Configuring Multihome BGPObjectivesVisual ObjectiveCommand ListTask 1: Cleaning UpTask 2: Configuring BGPExercise VerificationConfiguration Exercise 8-2: Configuring Full-Mesh IBGPObjectivesVisual ObjectiveCommand ListTask: Configuring Full-Mesh IBGPExercise VerificationConfiguration Exercise 8-3: BGP Path Manipulation Using MED and Local Preference with Route MapsObjectivesVisual ObjectiveCommand ListTask: Using MED and Local Preference with Route Maps for BGP Path ManipulationExercise VerificationReview Questions
Introduction to MulticastMulticast Versus UnicastMulticast ApplicationsAdvantages of MulticastDisadvantages of MulticastMulticast IP AddressesLayer 2 Multicast AddressesLearning About Multicast SessionsIGMP and CGMPIGMP Version 1 (IGMPv1)IGMP Version 2 (IGMPv2)IGMPv2: Joining a GroupIGMPv2: Leaving a GroupIGMP Version 3 (IGMPv3)IGMPv3: Joining a GroupIGMPv3: OperationDetermining Which IGMP Version Is RunningMulticast with Layer 2 SwitchesCGMPIGMP SnoopingPIM Routing ProtocolPIM TerminologyDistribution TreesReverse Path ForwardingPIM ModesMulticast Distribution TreesSource Distribution TreesShared Distribution TreesMulticast Distribution Tree NotationPIM-DMPIM-SMPIM Sparse-Dense ModeIP Multicast Configuration and VerificationConfiguring PIM-SM and PIM Sparse-Dense ModeConfiguring a Router to Be a Member of a Group or a Statically Connected MemberVerifying IP MulticastInspecting the IP Multicast Routing TablePIM Interfaces and NeighborsChecking RP InformationVerifying IGMP GroupsVerifying IGMP SnoopingSummaryReferencesConfiguration Exercise: Configuring Multicast RoutingObjectivesVisual ObjectiveCommand ListTask 1: Cleaning UpTask 2: Enable IP Multicast RoutingTask 3: Configure PIM Sparse-Dense Mode on All InterfacesExercise VerificationReview Questions
Introducing IPv6Features of IPv6IPv6 Address SpaceThe Need for Larger Address SpaceIPv6 AddressingIPv6 Packet HeaderExtension HeadersMTU DiscoveryIPv6 Address RepresentationIPv6 Address TypesInterface Identifiers in IPv6 AddressesIPv6 Global Unicast AddressesIPv6 Link-Local Unicast AddressesIPv6 Anycast AddressesIPv6 Multicast AddressesStateless AutoconfigurationIPv6 MobilityIPv6 Configuration and Using OSPF and Other Routing Protocols for IPv6IPv6 Routing ProtocolsStatic RoutingRIPngOSPFv3IS-IS for IPv6EIGRP for IPv6MP-BGP4OSPFv3 Compared to OSPFv2Similarities Between OSPFv2 and OSPFv3Differences Between OSPFv2 and OSPFv3OSPF LSA Types for IPv6IPv6 ConfigurationOSPFv3 ConfigurationVerifying IPv6 and OSPFv3clear ipv6 ospf Commandshow ipv6 route Commandshow ipv6 interface Commandshow ipv6 ospf interface Commandshow ipv6 ospf Commandshow ipv6 ospf neighbor Commandshow ipv6 ospf database CommandTransitioning IPv4 to IPv6Dual StackTunnelingManually Configured TunnelsOther Tunneling Mechanisms6-to-4 TunnelingTranslation MechanismsSummaryReferencesConfiguration Exercise 10-1: Configuring IPv6 Addresses and OSPF for IPv6 RoutingObjectivesVisual ObjectiveCommand ListTask 1: Cleaning UpTask 2: Configuring IPv6Task 3: Enable IPv6 OSPFExercise VerificationConfiguration Exercise 10-2: Configuring an IPv6 TunnelObjectivesVisual ObjectiveCommand ListTask: Configuring the Tunnel InterfaceExercise VerificationReview Questions
Chapter 1Chapter 2Chapter 3Chapter 4Chapter 5Chapter 6Chapter 7Chapter 8Chapter 9Chapter 10
Configuration Exercise Equipment RequirementsTFTP Server SetupMulticast Traffic GeneratorConfiguration Exercise Setup DiagramConfiguration Exercise Equipment WiringBackbone Router ConfigurationsBBR1 ConfigurationBBR2 ConfigurationFrame_Switch Configuration
IPv4 Addresses and Subnetting Job AidDecimal-to-Binary Conversion ChartIPv4 Addressing ReviewConverting IP Addresses Between Decimal and BinaryDetermining an IP Address ClassPrivate AddressesExtending an IP Classful Address Using Subnet MasksCalculating a Subnet MaskCalculating the Networks for a Subnet MaskUsing Prefixes to Represent a Subnet MaskIPv4 Access ListsIP Access List OverviewIP Standard Access ListsWildcard MasksAccess List Configuration TasksIP Standard Access List ConfigurationImplicit Wildcard MasksConfiguration PrinciplesStandard Access List ExampleLocation of Standard Access ListsIP Extended Access ListsExtended Access List ProcessingExtended IP Access List ConfigurationExtended Access List ExamplesLocation of Extended Access ListsRestricting Virtual Terminal AccessHow to Control vty AccessVirtual Terminal Line Access ConfigurationVerifying Access List ConfigurationIP Address PlanningBenefits of an Optimized IP Addressing PlanScalable Network Addressing ExampleNonscalable Network AddressingUpdate SizeUnsummarized Internetwork Topology ChangesSummarized Network Topology ChangesHierarchical Addressing Using Variable-Length Subnet MasksNetwork MaskUse of the Network MaskNetwork Mask ExampleImplementing VLSM in a Scalable NetworkVLSM Calculation ExampleLAN AddressesSerial Line AddressesSummary of Addresses Used in the VLSM ExampleAnother VLSM ExampleRoute SummarizationRoute Summarization OverviewRoute Summarization Calculation ExampleSummarizing Addresses in a VLSM-Designed NetworkRoute Summarization ImplementationRoute Summarization Operation in Cisco RoutersRoute Summarization in IP Routing ProtocolsClassless Interdomain RoutingCIDR Example
Introduction to Policy-Based RoutingConfiguring Policy-Based RoutingPolicy-Based Routing match CommandsPolicy-Based Routing set CommandsConfiguring Policy-Based Routing on an InterfaceVerifying Policy-Based RoutingPolicy-Based Routing ExamplesUsing Policy-Based Routing When Connecting Two ISPsUsing Policy-Based Routing Based on Source Address
BGP Route SummarizationCIDR and Aggregate AddressesNetwork Boundary SummarizationBGP Route Summarization Using the network CommandCautions When Using the network Command for SummarizationCreating a Summary Address in the BGP Table Using the aggregate-address CommandRedistribution with IGPsAdvertising Networks into BGPAdvertising from BGP into an IGPISP: No Redistribution from BGP into IGP Is RequiredNon-ISP: Redistribution from BGP into IGP Might Be RequiredPolicy Control and Prefix ListsPrefix List CharacteristicsFiltering with Prefix ListsConfiguring Prefix ListsPrefix List Sequence NumbersPrefix List ExampleVerifying Prefix ListsVerifying Prefix Lists ExampleCommunitiesCommunity AttributeSetting and Sending the Communities ConfigurationUsing the Communities ConfigurationRoute ReflectorsRoute Reflector BenefitsRoute Reflector TerminologyRoute Reflector DesignRoute Reflector Design ExampleRoute Reflector OperationRoute Reflector Migration TipsRoute Reflector ConfigurationRoute Reflector ExampleVerifying Route Reflectors
General CommandsComparison of Configuration File CommandsGeneral Configuration CommandsGeneral Interface Configuration CommandsGeneral IP CommandsIP Configuration CommandsWAN Configuration CommandsCLNS Configuration Commands
Characteristics of the OSI LayersProtocolsOSI Model and Communication Between SystemsInteraction Between OSI Model LayersOSI Layer ServicesOSI Model Layers and Information ExchangeInformation Exchange ProcessOSI Model’s Physical LayerOSI Model’s Data Link LayerOSI Model’s Network LayerOSI Model’s Transport LayerOSI Model’s Session LayerOSI Model’s Presentation LayerOSI Model’s Application LayerInformation Formats

Content preview from Authorized Self-Study Guide Building Scalable Cisco Internetworks (BSCI), Third Edition

Chapter 4. Configuring the Open Shortest Path First Protocol

This chapter introduces the Open Shortest Path First (OSPF) protocol. It covers the following topics:

This chapter examines the Open Shortest Path First (OSPF) routing protocol, which is one of the most commonly used interior gateway protocols in IP networking. OSPF is an open-standard protocol based primarily on Requests For Comments (RFC) 2328. OSPF is a fairly complex protocol made up of several protocol handshakes, database advertisements, and packet types. This chapter also describes basic configuration of OSPF, in both single and multiple areas, and explores OSPF configuration over specific network ...

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Authorized Self-Study Guide Designing for Cisco Internetwork Solutions (DESGN), Second Edition

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Authorized Self-Study Guide Building Scalable Cisco Internetworks (BSCI), Third Edition

by Diane Teare, Catherine Paquet

Chapter 4. Configuring the Open Shortest Path First Protocol

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Chapter 4. Configuring the Open Shortest Path First Protocol

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Publisher Resources

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.