Understanding and Troubleshooting Cisco Catalyst 9800 Series Wireless Controllers

Name: Understanding and Troubleshooting Cisco Catalyst 9800 Series Wireless Controllers
Brand: Cisco Press
Price: 56.49 EUR
Availability: OnlineOnly

Simone Arena Nicolas Darchis Francisco Crippa Sudha Katgeri(Autor*in)

Cisco Press

1. Auflage

Erschienen am 28. Juli 2022

656 Seiten

E-Book

ePUB mit Wasserzeichen-DRM

Systemvoraussetzungen

978-0-13-749252-7 (ISBN)

56,49 €inkl. 7% MwSt.

Systemvoraussetzungen

für ePUB mit Wasserzeichen-DRM

E-Book Einzellizenz

Als Download verfügbar

Beschreibung

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

Weitere Details

Weitere Ausgaben

Personen

Simone Arena is a principal technical marketing engineer (TME) within the Cisco Enterprise Networking & Cloud group and is primarily focused on enterprise network architecture and on all things related to wireless and mobility. Simone is based in Italy and is a Cisco veteran, having joined Cisco in 1999. Throughout the years, Simone has covered multiple roles at Cisco, starting as a software engineer working with Catalyst switching platforms, to consulting system engineer in the field, to TME within different teams (Enterprise Solution Engineering, Wireless Business Unit, Enterprise Networking and Cloud, and now Networking Experiences Group). Today Simone is the lead TME architect for Catalyst Wireless, and his time is split between helping customers and partners design the best solution that fits their needs and engineering and product management, trying to evolve and improve the products and solutions. Simone is a Distinguished Speaker at Cisco Live and has spoken at Cisco Live events all over the world for several years. Besides wireless and networking, Simone has two passions: his family, with his two daughters Viola and Anita; and Fiorentina, the best soccer team in the world...no question. In his spare time, Simone enjoys listening to music, especially through his new tube amplifier (simply awesome!). Francisco Sedano Crippa, CCIE No. 14859, joined Cisco in 2006. After some years at TAC supporting voice solutions and as a system engineer working with service providers, he moved to the development side, where he worked on routing, datacenter and, during the past 10 years, as a technical leader on the Wireless Controller development team, focused in serviceability, location services, programmability, and cloud. He's a Cisco Live speaker and is passionate about DevOps and automation, and he is now working on architecting next-generation cloud-based lab services. When not working, he spends his time building a full-size Boeing 737 simulator in his basement and enjoying his other passion: his daughter, Scarlett, and son, Marco, and his wife, Isabel. Nicolas Darchis, CCIE Wireless No. 25344, joined the Wireless and AAA Cisco TAC team in Belgium in 2007, where his main focus was troubleshooting wireless networks, wireless management tools, and security products. Since 2016, Nicolas has been working as a technical leader for wireless at the same technical assistance center in Brussels; he has shifted a big part of his focus to improving product serviceability of new and upcoming products, as well as new software releases. He is also a major contributor to online documentation of Cisco wireless products and has participated in many of the wireless "Ask the Expert" sessions run by the Cisco support community. Nicolas has been a CCIE Wireless No. 25344 since 2009 and, more recently, he has achieved CWNE No. 208. Sudha Katgeri, CCIE No. 45857, is a technical leader in services for Enterprise Wireless and has been with Cisco since 2006. Besides supporting customer escalations, Sudha collaborates with Customer Experience (CX), Enterprise Networking (ENB) Escalation, Engineering, and Product Management to improve product quality and serviceability in the next-generation Catalyst wireless stack. Sudha has a CCIE in Wireless (#45857) and is an author and contributor to Wireless TAC Innovation Tools like Wireless Config Converter, CLI Analyzer, and several documents on cisco.com.

Inhalt

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

Systemvoraussetzungen

Als PDF speichern Als Link merken