book

Understanding and Troubleshooting Cisco Catalyst 9800 Series Wireless Controllers

by Nicolas Darchis, Simone Arena, Francisco Sedano Crippa, Sudha Katgeri

July 2022

Intermediate to advanced

656 pages

19h 56m

English

Cisco Press

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Goals and MethodsWho Should Read This Book?How This Book Is OrganizedBook Structure
Why Cisco C9800?The Role of the Wireless Controller in a Cloud EraManaging the Cisco C9800Cisco Next-Generation Wireless StackSummaryReferences
General CAPWAP Split MAC ArchitectureThe Controller Control Plane Architecture ElasticityWireless Client State MachineOne Dataplane to Rule Them All (or Three at the Maximum)Hardware OverviewSummary
C9800 New Configuration ModelCisco C9800 Series Profile and Tag ConsiderationsSummaryReferences
C9800 Deployment ModelsSetting Up Your First Catalyst Wireless NetworkSummaryReferences
Network Security FundamentalsWireless Security FundamentalsSecuring the AirSecuring Your Access PointsSecuring Your Wireless ControllerEncrypted Traffic AnalyticsCisco UmbrellaCisco Secure Development Lifecycle (CSDL)SummaryReferences
802.11 RoamingTypes of Client RoamingC9800 to AireOS Inter-Release Controller Mobility (IRCM)SummaryReferences
Radio Resources Management (RRM) Concepts and ComponentsChallenging RF EnvironmentsRadio Resources Management (RRM)DCARF ProfilesSpectrum Intelligence and CleanAirAdvanced RF FeaturesAirtime Fairness (ATF)Dynamic Frequency Selection (DFS)Flexible Radio Assignment (FRA)Wireless Intrusion Prevention System (WIPS) and Rogue DetectionSummaryReferences
Wireless MulticastMedia Stream FeaturemDNSSummaryReferences
Wi-Fi Quality of Service (QoS)Wi-Fi (802.11) QoS FundamentalsImplementing Wireless QoS on the C9800Designing and Deploying Catalyst C9800 QoSBest PracticesSummaryReferences
SSO RedundancyHA TeardownSSO Deployment: Impact on FeaturesN+1 RedundancyN+1 vs. SSO High AvailabilityHA in EWC-AP DeploymentHA in EWC-SW DeploymentSummaryReferences
Value-Added Wireless ServicesConnected Mobile Experiences (CMX)Cisco DNA SpacesSpecific Service ExamplesSummaryReferences
What Is Network Programmability?Why Is Network Programmability Needed?Is Network Programmability a New Concept?Orchestration of the Entire NetworkConfiguration RepeatabilityIdempotencyImperative vs. Declarative ModelsInfrastructure as Code (IaC)Network Programmability in the C9800Data ModelsYANG Data ModelsEncoding FormatsProtocolsTools to Examine YANG ModelsHow to Examine Data Using NETCONF and YANG SuiteHow to Examine Data Using RESTCONF and POSTMANPython and Network ProgrammabilitySummaryReferences
What Is Model-Driven Telemetry?How to Enable Model-Driven TelemetryOperational Data and KPIsPolling vs. SubscribingTelemetry StreamsHow to Identify Subtrees in YANG ModelsDial-out vs. Dial-inToolsSummaryReferences
IntroductionManaging the C9800 with Cisco DNA CenterSummaryReferences
Saving and Restoring the Configuration for Disaster RecoveryRunning IOS-XE in Install or Bundle ModeUpgrading (and Downgrading) the Controller SafelySummaryReferences
Control Plane TracingEmbedded Packet Capture (EPC)Packet TracerTroubleshooting DashboardOther On-the-Box Tools on the C9800 GUIOffline Tools for the C9800Health and KPI MonitoringSummaryReferences
Setting Up Your Development Environment