Understanding and Troubleshooting Cisco Catalyst 9800 Series Wireless Controllers
- Length: 656 pages
- Edition: 1
- Language: English
- Publisher: Cisco Press
- Publication Date: 2022-08-06
- ISBN-10: 0137492324
- ISBN-13: 9780137492329
- Sales Rank: #489752 (See Top 100 Books)
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
Cover Page About This eBook Title Page Copyright Page Pearson’s Commitment to Diversity, Equity, and Inclusion About the Authors About the Technical Reviewers Dedications Acknowledgments Contents at a Glance Contents Reader Services Icons Used in This Book Command Syntax Conventions Introduction Goals and Methods Who Should Read This Book? How This Book Is Organized Book Structure Chapter 1. Cisco C9800 Series Why Cisco C9800? The Role of the Wireless Controller in a Cloud Era Managing the Cisco C9800 Cisco Next-Generation Wireless Stack Summary References Chapter 2. Hardware and Software Architecture of the C9800 General CAPWAP Split MAC Architecture The Controller Control Plane Architecture Elasticity Wireless Client State Machine One Dataplane to Rule Them All (or Three at the Maximum) Hardware Overview Summary Chapter 3. C9800 Configuration Model C9800 New Configuration Model Cisco C9800 Series Profile and Tag Considerations Summary References Chapter 4. C9800 Deployment and Installation C9800 Deployment Models Setting Up Your First Catalyst Wireless Network Summary References Chapter 5. Security Network Security Fundamentals Wireless Security Fundamentals Securing the Air Securing Your Access Points Securing Your Wireless Controller Encrypted Traffic Analytics Cisco Umbrella Cisco Secure Development Lifecycle (CSDL) Summary References Chapter 6. Mobility and Client Roaming 802.11 Roaming Types of Client Roaming C9800 to AireOS Inter-Release Controller Mobility (IRCM) Summary References Chapter 7. RF Deployment and Guidelines Radio Resources Management (RRM) Concepts and Components Challenging RF Environments Radio Resources Management (RRM) DCA RF Profiles Spectrum Intelligence and CleanAir Advanced RF Features Airtime Fairness (ATF) Dynamic Frequency Selection (DFS) Flexible Radio Assignment (FRA) Wireless Intrusion Prevention System (WIPS) and Rogue Detection Summary References Chapter 8. Multicast and Multicast Domain Name System (mDNS) Wireless Multicast Media Stream Feature mDNS Summary References Chapter 9. Quality of Service (QoS) Wi-Fi Quality of Service (QoS) Wi-Fi (802.11) QoS Fundamentals Implementing Wireless QoS on the C9800 Designing and Deploying Catalyst C9800 QoS Best Practices Summary References Chapter 10. C9800 High Availability SSO Redundancy HA Teardown SSO Deployment: Impact on Features N+1 Redundancy N+1 vs. SSO High Availability HA in EWC-AP Deployment HA in EWC-SW Deployment Summary References Chapter 11. Cisco DNA Spaces Integration and IoT Value-Added Wireless Services Connected Mobile Experiences (CMX) Cisco DNA Spaces Specific Service Examples Summary References Chapter 12. Network Programmability What Is Network Programmability? Why Is Network Programmability Needed? Is Network Programmability a New Concept? Orchestration of the Entire Network Configuration Repeatability Idempotency Imperative vs. Declarative Models Infrastructure as Code (IaC) Network Programmability in the C9800 Data Models YANG Data Models Encoding Formats Protocols Tools to Examine YANG Models How to Examine Data Using NETCONF and YANG Suite How to Examine Data Using RESTCONF and POSTMAN Python and Network Programmability Summary References Chapter 13. Model-Driven Telemetry What Is Model-Driven Telemetry? How to Enable Model-Driven Telemetry Operational Data and KPIs Polling vs. Subscribing Telemetry Streams How to Identify Subtrees in YANG Models Dial-out vs. Dial-in Tools Summary References Chapter 14. Cisco DNA Center/Assurance Integration Introduction Managing the C9800 with Cisco DNA Center Summary References Chapter 15. Backing Up, Restoring, and Upgrading Your C9800 Saving and Restoring the Configuration for Disaster Recovery Running IOS-XE in Install or Bundle Mode Upgrading (and Downgrading) the Controller Safely Summary References Chapter 16. Troubleshooting Control Plane Tracing Embedded Packet Capture (EPC) Packet Tracer Troubleshooting Dashboard Other On-the-Box Tools on the C9800 GUI Offline Tools for the C9800 Health and KPI Monitoring Summary References Appendix A. Setting Up a Development Environment Setting Up Your Development Environment Index Code Snippets
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