Understanding and Troubleshooting Cisco Catalyst 9800 Series Wireless Controllers
暫譯: 理解與故障排除 Cisco Catalyst 9800 系列無線控制器

思科下一代 9800 無線控制器的專業指南

隨著無線網路、應用程式和服務的快速演變，它們變得越來越關鍵，對性能、延遲、部署密度和設備支援的要求也愈加嚴格。思科的先進 Catalyst 9800 無線控制器應對這些挑戰，提供卓越的適應性、安全性、性能、可擴展性和可程式化性。基於現代且安全的 Cisco IOS XE 作業系統，它們對思科意圖導向網路的支援將幫助您持續利用新創新。現在，四位思科專家提供端到端的指導、實用的建議和經過驗證的推薦，幫助您設計、部署和管理 Catalyst 9800 的無線網路。

對於技術決策者而言，本指南提供了對 Catalyst 9800 硬體和軟體的深入理解，與商業價值緊密相連。架構師將找到有關前期網路設計和功能實現的必要細節。網路操作員和其他 IT 專業人員將發現可靠且高效的設置、配置、監控和故障排除的測試工具和方法。無論您的角色是什麼，本指南將幫助您最大化任何 Catalyst 9800 網路的價值，並作為您未來幾年的不可或缺的參考資料。

• 了解 Catalyst 9800 的優勢、能力、角色和架構


• 學習新的 C9800 配置模型，包括關鍵設計考量和最佳實踐


• 在私有和公共雲中部署和配置 C9800


• 系統性地保護 C9800：從 AAA 和 ACL 到惡意偵測和無線入侵防護 (WIPS)


• 在企業環境中建立和優化無縫客戶端漫遊


• 了解 C9800 如何實現關鍵的 RF 概念


• 規劃和實施端到端的 QoS 架構，並設計/部署高可用性和多播等網路服務


• 發現透過 Cisco DNA Spaces 提供的增值無線服務


• 透過 YANG、Python、RESTCONF 和 NETCONF 驅動網路可程式化的靈活性和價值


• 利用開源工具充分發揮模型驅動遙測和可程式化的豐富數據模型


• 逐步了解無線網路故障排除、備份/還原和升級

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.

Simone Arena 是思科企業網路與雲端團隊的首席技術行銷工程師 (TME)，主要專注於企業網路架構以及所有與無線和移動性相關的事務。Simone 目前居住在義大利，是思科的資深員工，自1999年加入思科以來，擔任過多個職位，從最初的軟體工程師，專注於 Catalyst 交換平台，到現場的顧問系統工程師，再到不同團隊的 TME（企業解決方案工程、無線業務單位、企業網路與雲端，現在是網路體驗團隊）。如今，Simone 是 Catalyst Wireless 的首席 TME 架構師，他的時間分配在幫助客戶和合作夥伴設計最符合其需求的解決方案，以及工程和產品管理，努力發展和改進產品和解決方案。Simone 是思科大會的傑出演講者，並在全球各地的思科大會活動中發表演講多年。除了無線和網路，Simone 還有兩個熱情：他的家庭，與他的兩個女兒 Viola 和 Anita；以及佛羅倫薩，世界上最好的足球隊……毫無疑問。在空閒時間，Simone 喜歡聽音樂，特別是透過他的新真空管擴大機（簡直太棒了！）。

Francisco Sedano Crippa，CCIE 編號 14859，於2006年加入思科。在 TAC 支援語音解決方案和作為系統工程師與服務提供商合作的幾年後，他轉向開發部門，專注於路由、數據中心，並在過去的10年中擔任無線控制器開發團隊的技術領導，專注於可服務性、定位服務、可編程性和雲端。他是思科大會的演講者，對 DevOps 和自動化充滿熱情，現在正在設計下一代基於雲的實驗室服務。在不工作的時候，他會在地下室建造一個全尺寸的波音737 模擬器，並享受他的另一個熱情：他的女兒 Scarlett、兒子 Marco 和妻子 Isabel。

Nicolas Darchis，CCIE Wireless 編號 25344，於2007年加入位於比利時的無線和 AAA 思科 TAC 團隊，主要專注於無線網路的故障排除、無線管理工具和安全產品。自2016年以來，Nicolas 一直在布魯塞爾的同一技術支援中心擔任無線技術領導；他將大部分精力轉向改善新產品和即將推出產品的可服務性，以及新的軟體版本。他也是思科無線產品在線文檔的主要貢獻者，並參加了思科支援社群舉辦的許多無線「專家問答」會議。Nicolas 自2009年以來一直是 CCIE Wireless 編號 25344，最近他還獲得了 CWNE 編號 208。

Sudha Katgeri，CCIE 編號 45857，是企業無線服務的技術領導，自2006年以來一直在思科工作。除了支援客戶升級外，Sudha 還與客戶體驗 (CX)、企業網路 (ENB) 升級、工程和產品管理合作，以改善下一代 Catalyst 無線堆疊的產品質量和可服務性。Sudha 擁有無線的 CCIE (#45857)，並且是無線 TAC 創新工具的作者和貢獻者，如無線配置轉換器、CLI 分析器以及 cisco.com 上的幾份文件。