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CCNP and CCIE Enterprise Core ENCOR 350-401 Official Cert Guide, 2nd Edition

by Brad Edgeworth, Ramiro Garza Rios, David Hucaby, Jason Gooley

October 2023

Beginner to intermediate

1120 pages

37h 15m

English

Cisco Press

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Goals and MethodsWho Should Read This Book?Strategies for Exam PreparationThe Companion Website for Online Content Review
“Do I Know This Already?” QuizFoundation TopicsNetwork Device CommunicationForwarding ArchitecturesExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your MemoryReferences in This Chapter
“Do I Know This Already?” QuizFoundation TopicsSpanning Tree Protocol FundamentalsRapid Spanning Tree ProtocolExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your Memory
“Do I Know This Already?” QuizFoundation TopicsSTP Topology TuningAdditional STP Protection MechanismsExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your Memory
“Do I Know This Already?” QuizFoundation TopicsMultiple Spanning Tree ProtocolExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your Memory
“Do I Know This Already?” QuizFoundation TopicsVLAN Trunking ProtocolDynamic Trunking ProtocolEtherChannel BundleExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your Memory
“Do I Know This Already?” QuizFoundation TopicsRouting Protocol OverviewPath SelectionStatic RoutingPolicy-based RoutingVirtual Routing and ForwardingExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your Memory
“Do I Know This Already?” QuizFoundation TopicsEIGRP FundamentalsPath Metric CalculationFailure Detection and TimersRoute SummarizationExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsReferences in This Chapter
“Do I Know This Already?” QuizFoundation TopicsOSPF FundamentalsOSPF ConfigurationDefault Route AdvertisementCommon OSPF OptimizationsExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your MemoryReferences in This Chapter
“Do I Know This Already?” QuizFoundation TopicsAreasLink-State AdvertisementsDiscontiguous NetworksOSPF Path SelectionSummarization of RoutesRoute FilteringExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your MemoryReferences in This Chapter
“Do I Know This Already?” QuizFoundation TopicsOSPFv3 FundamentalsOSPFv3 ConfigurationIPv4 Support in OSPFv3Exam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your MemoryReferences in This Chapter
“Do I Know This Already?” QuizFoundation TopicsBGP FundamentalsBasic BGP ConfigurationIPv4 Route SummarizationMultiprotocol BGP for IPv6Exam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your MemoryReferences in This Chapter
“Do I Know This Already?” QuizFoundation TopicsBGP MultihomingConditional MatchingRoute MapsBGP Route Filtering and ManipulationBGP CommunitiesUnderstanding BGP Path SelectionExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your MemoryReferences in This Chapter
“Do I Know This Already?” QuizFoundation TopicsMulticast FundamentalsMulticast AddressingInternet Group Management ProtocolProtocol Independent MulticastRendezvous PointsExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsReferences in This Chapter
“Do I Know This Already?” QuizFoundation TopicsThe Need for QoSQoS ModelsModular QoS CLIClassification and MarkingPolicing and ShapingCongestion Management and AvoidanceExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your MemoryReferences in This Chapter
“Do I Know This Already?” QuizFoundation TopicsTime SynchronizationPrecision Time Protocol (PTP)First-Hop Redundancy ProtocolNetwork Address TranslationExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your Memory
“Do I Know This Already?” QuizFoundation TopicsGeneric Routing Encapsulation (GRE) TunnelsIPsec FundamentalsCisco Locator/ID Separation Protocol (LISP)Virtual Extensible Local Area Network (VXLAN)Exam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your Memory
“Do I Know This Already?” QuizFoundation TopicsUnderstanding Basic Wireless TheoryCarrying Data Over an RF SignalExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key Terms
“Do I Know This Already?” QuizFoundation TopicsWireless Deployment ModelsPairing Lightweight APs and WLCsSegmenting Wireless ConfigurationsLeveraging Antennas for Wireless CoverageExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key Terms
“Do I Know This Already?” QuizFoundation TopicsRoaming OverviewIntercontroller RoamingLocating Devices in a Wireless NetworkExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key Terms
“Do I Know This Already?” QuizFoundation TopicsOpen AuthenticationAuthenticating with Pre-Shared KeyAuthenticating with EAPAuthenticating with WebAuthExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key Terms
“Do I Know This Already?” QuizFoundation TopicsTroubleshooting Client Connectivity from the WLCTroubleshooting Connectivity Problems at the APExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key Terms
“Do I Know This Already?” QuizFoundation TopicsHierarchical LAN Design ModelHigh Availability Network DesignEnterprise Network Architecture OptionsExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key Terms
“Do I Know This Already?” QuizFoundation TopicsSoftware-Defined Access (SD-Access)Software-Defined WAN (SD-WAN)Exam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key Terms
“Do I Know This Already?” QuizFoundation TopicsNetwork Diagnostic ToolsDebuggingNetFlow and Flexible NetFlowSwitched Port Analyzer (SPAN) TechnologiesIP SLACisco DNA Center AssuranceExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key Terms
“Do I Know This Already?” QuizFoundation TopicsNetwork Security Design for Threat DefenseNext-Generation Endpoint SecurityNetwork Access Control (NAC)Exam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key Terms
“Do I Know This Already?” QuizFoundation TopicsAccess Control Lists (ACLs)Terminal Lines and Password ProtectionAuthentication, Authorization, and Accounting (AAA)Zone-Based Firewall (ZBFW)Control Plane Policing (CoPP)Device HardeningExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsUse the Command Reference to Check Your Memory
“Do I Know This Already?” QuizFoundation TopicsServer VirtualizationNetwork Functions VirtualizationExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key Terms
“Do I Know This Already?” QuizFoundation TopicsCommand-Line InterfaceApplication Programming InterfaceData Models and Supporting ProtocolsCisco DevNetGitHubBasic Python Components and ScriptsExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key TermsReferences in This Chapter
“Do I Know This Already?” QuizFoundation TopicsEmbedded Event ManagerAgent-Based Automation ToolsAgentless Automation ToolsExam Preparation TasksReview All Key TopicsComplete Tables and Lists from MemoryDefine Key Terms
Getting ReadyTools for Final PreparationSuggested Plan for Final Review/StudySummary
The Purpose of This ChapterNews About the Next Exam ReleaseUpdated Technical Content

Content preview from CCNP and CCIE Enterprise Core ENCOR 350-401 Official Cert Guide, 2nd Edition

Chapter 3 Advanced STP Tuning

This chapter covers the following subjects:

STP Topology Tuning: This section explains some of the options for modifying the root bridge location or moving blocking ports to designated ports.
Additional STP Protection Mechanisms: This section examines protection mechanisms such as root guard, BPDU guard, and STP loop guard.

This chapter reviews techniques for configuring a switch to be guaranteed as the root bridge or as a backup root bridge for a Layer 2 topology. In addition, this chapter explains features that prevent other switches from unintentionally taking over the root bridge role. The chapter also explains other common features that are used in Cisco’s enterprise campus validated design guides.