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Understanding and Troubleshooting Cisco Catalyst 9800 Series Wireless Controllers

Understanding and Troubleshooting Cisco Catalyst 9800 Series Wireless Controllers

          
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About the Book

The definitive professional's guide to the Cisco next-gen 9800 wireless controllers As wireless networks, applications, and services rapidly evolve, they grow increasingly business critical, with steeper requirements for performance, latency, deployment density, and device support. The advanced Catalyst 9800 wireless controllers from Cisco meet these challenges, delivering exceptional adaptability, security, performance, scalability, and programmability. Based on the modern and secure Cisco IOS XE operating system, their support for Cisco intent-based networking will help you continually leverage new innovation. Now, four Cisco experts offer end-to-end guidance, practical tips, and proven recommendations for designing, deploying, and managing wireless networks with the Catalyst 9800. For technical decision makers, this guide delivers a deep understanding of Catalyst 9800 hardware and software, tightly linked to business value. Architects will find essential details for both upfront network design and feature implementation. Network operators and other IT professionals will discover tested tools and methods for reliable and efficient setup, configuration, monitoring, and troubleshooting. Whatever your role, this guide will help you maximize the value of any Catalyst 9800 network, and serve as your indispensable reference for years to come. Understand Catalyst 9800 benefits, capabilities, roles, and architecture Learn the new C9800 Configuration Model, with key design considerations and best practices Deploy and configure the C9800 in private and public clouds Systematically secure the C9800: from AAA and ACLs to rogue detection and wireless intrusion prevention (WIPS) Establish and optimize seamless client roaming in enterprise environments Learn how the C9800 implements key RF concepts Plan and implement an end-to-end architecture for QoS, and design/ deploy for high availability and network services like multicast Discover value-added wireless services available through Cisco DNA Spaces Drive agility and value via network programmability with YANG, Python, RESTCONF, and NETCONF Make the most out of the rich data models of Model-Driven Telemetry and Programmability using open-source tools Walk through wireless network troubleshooting, backup/restore, and upgrades

Table of Contents:
    Introduction xxvii Chapter 1 Cisco C9800 Series 1     Why Cisco C9800? 2     The Role of the Wireless Controller in a Cloud Era 7     Managing the Cisco C9800 10     Cisco Next-Generation Wireless Stack 22     Summary 23     References 23 Chapter 2 Hardware and Software Architecture of the C9800 25     General CAPWAP Split MAC Architecture 25     The Controller Control Plane Architecture Elasticity 27     Wireless Client State Machine 31     One Dataplane to Rule Them All (or Three at the Maximum) 35     Hardware Overview 38     Summary 42 Chapter 3 C9800 Configuration Model 43     C9800 New Configuration Model 43     Cisco C9800 Series Profile and Tag Considerations 48     Summary 64     References 64 Chapter 4 C9800 Deployment and Installation 65     C9800 Deployment Models 65     Setting Up Your First Catalyst Wireless Network 79     Summary 87     References 87 Chapter 5 Security 89     Network Security Fundamentals 89     Wireless Security Fundamentals 116     Securing the Air 128     Securing Your Access Points 148     Securing Your Wireless Controller 151     Encrypted Traffic Analytics 154     Cisco Umbrella 155     Cisco Secure Development Lifecycle (CSDL) 157     Summary 157     References 157 Chapter 6 Mobility and Client Roaming 159     802.11 Roaming 160     Types of Client Roaming 181     C9800 to AireOS Inter-Release Controller Mobility (IRCM) 191     Summary 192     References 193 Chapter 7 RF Deployment and Guidelines 195     Radio Resources Management (RRM) Concepts and Components 195     Challenging RF Environments 199     Radio Resources Management (RRM) 203     DCA 211     RF Profiles 215     Spectrum Intelligence and CleanAir 219     Advanced RF Features 224     Airtime Fairness (ATF) 228     Dynamic Frequency Selection (DFS) 232     Flexible Radio Assignment (FRA) 235     Wireless Intrusion Prevention System (WIPS) and Rogue Detection 238     Summary 246     References 246 Chapter 8 Multicast and Multicast Domain Name System (mDNS) 247     Wireless Multicast 250     Media Stream Feature 263     mDNS 272     Summary 283     References 283 Chapter 9 Quality of Service (QoS) 285     Wi-Fi Quality of Service (QoS) 286     Wi-Fi (802.11) QoS Fundamentals 287     Implementing Wireless QoS on the C9800 300     Designing and Deploying Catalyst C9800 QoS 304     Best Practices 320     Summary 322     References 322 Chapter 10 C9800 High Availability 323     SSO Redundancy 324     HA Teardown 349     SSO Deployment: Impact on Features 350     N+1 Redundancy 352     N+1 vs. SSO High Availability 357     HA in EWC-AP Deployment 358     HA in EWC-SW Deployment 359     Summary 359     References 360 Chapter 11 Cisco DNA Spaces Integration and IoT 361     Value-Added Wireless Services 361     Connected Mobile Experiences (CMX) 372     Cisco DNA Spaces 372     Specific Service Examples 379     Summary 392     References 392 Chapter 12 Network Programmability 393     What Is Network Programmability? 393     Why Is Network Programmability Needed? 393     Is Network Programmability a New Concept? 396     Orchestration of the Entire Network 396     Configuration Repeatability 396     Idempotency 397     Imperative vs. Declarative Models 397     Infrastructure as Code (IaC) 400     Network Programmability in the C9800 401     Data Models 402     YANG Data Models 403     Encoding Formats 406     Protocols 408     Tools to Examine YANG Models 412     How to Examine Data Using NETCONF and YANG Suite 419     How to Examine Data Using RESTCONF and POSTMAN 421     Python and Network Programmability 429     Summary 436     References 436 Chapter 13 Model-Driven Telemetry 437     What Is Model-Driven Telemetry? 437     How to Enable Model-Driven Telemetry 438     Operational Data and KPIs 441     Polling vs. Subscribing 447     Telemetry Streams 448     How to Identify Subtrees in YANG Models 449     Dial-out vs. Dial-in 450     Tools 460     Summary 467     References 467 Chapter 14 Cisco DNA Center/Assurance Integration 469     Introduction 469     Managing the C9800 with Cisco DNA Center 472     Summary 492     References 492 Chapter 15 Backing Up, Restoring, and Upgrading Your C9800 493     Saving and Restoring the Configuration for Disaster Recovery 493     Running IOS-XE in Install or Bundle Mode 500     Upgrading (and Downgrading) the Controller Safely 501     Summary 506     References 506 Chapter 16 Troubleshooting 507     Control Plane Tracing 509     Embedded Packet Capture (EPC) 525     Packet Tracer 531     Troubleshooting Dashboard 536     Other On-the-Box Tools on the C9800 GUI 540     Offline Tools for the C9800 545     Health and KPI Monitoring 548     Summary 577     References 578 Appendix A Setting Up a Development Environment 579 9780137492329, TOC, 5/27/2022


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Product Details
  • ISBN-13: 9780137492466
  • Publisher: Pearson Education (US)
  • Publisher Imprint: Cisco Press
  • Language: English
  • ISBN-10: 0137492464
  • Publisher Date: 28 Jul 2022
  • Binding: Digital download
  • No of Pages: 656


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