A Network Architect's Guide to 5g
暫譯: 網路架構師的5G指南

隨著5G改變了行動使用和服務，網路專業人員需要顯著地演進他們的傳輸網路架構，以達到更高的複雜性並與無線網路進行更強的整合，並促進向雲原生5G行動核心的過渡。然而，直到現在，大多數5G指南都將重點放在射頻/無線和行動核心的創新上，而不是其對數據網路的影響。《網路架構師的5G指南》填補了這一空白，為網路架構師、設計師和工程師提供設計和規劃自己5G網路所需的基本知識。

作者基於與全球服務提供商和企業網路的數十年經驗，闡明了建立5G能力網路所需的新興網路技術，例如分段路由、網路切片、時間和同步、邊緣計算、分散式數據中心、與公共雲的整合等。他們解釋了5G如何模糊行動核心、無線接入和傳輸之間的界限，以及隨著開放和虛擬化無線接入網路（RAN）的採用，傳統基站組成的變化，導致向行動xHaul的過渡。每一章都在前面的內容基礎上進行擴展，最終呈現出完整5G網路設計的「大局觀」。

- 了解行動技術在各代演進過程中，導致5G基礎概念和原則的演變。
- 探索5G對無線接入網路（RAN）、行動核心、行動傳輸的變化，以及它們之間更緊密整合的需求。
- 使用分段路由設計簡化的、具SDN能力的網路，並啟用5G的網路切片。
- 重新思考傳輸設計，以整合遠端邊緣、邊緣和基於公共雲的數據中心，增強集中式數據中心以支持分散式對等和多接入邊緣計算。
- 提供指導以滿足前傳、中傳和回傳架構各方面的標準和要求，例如傳輸協議評估、延遲考量、路由設計、QoS建模、網路設備選擇等。
- 通過結合行動通信原則與先進的傳輸技術，打造一個凝聚的5G網路架構。

Syed Farrukh Hassan has been designing and deploying networks for over 20 years. In his current role as principal telecommunications architect at Red Hat, Syed provides consultancy services to global 5G customers. Prior to that, Syed worked as a senior solutions architect in the Cisco professional and consulting services organization, providing guidance, strategy, and planning support to various Internet, cloud, and mobile service providers in their adoption of innovating networking technologies and transformation of their networks to new architectures. Syed co-authored one of the first books on NFV and SDN, has been a regular speaker in public forums and conferences, and is recognized as a Cisco Live Distinguished Speaker. Syed is a double CCIE in Service Provider and Data Center technologies (#21617), Google Certified Professional Cloud Networking Engineer, and Certified Kubernetes Administrator (CKA). He holds a bachelor's degree in engineering from NED University (Pakistan) and a master's degree in engineering from the University of Florida, Gainesville (USA).

Alexander Orel has more than 20 years of experience in designing, deploying, and supporting largescale transport networks for major Internet and mobile service providers. He has worked as a lead network engineer and senior network designer in various system integration companies and Internet service providers. Alexander spent a significant part of his career as a solutions architect in the Customer Experience New Product team at Cisco Systems, where he specialized in IOS XR-based platforms, NFV technologies, Segment Routing, application-driven networks, EVPN, and other bleeding-edge technologies. Recently, Alexander joined the Global Networking team at Google, where he continues to apply and expand his knowledge of large-scale networks. Alexander has a master's degree in applied mathematics and physics from Moscow Institute of Physics and Technology and holds CCIE certification #10391 in R&S and DC. Alexander has been a frequent presenter at various technology conferences such as Cisco Live and Cisco Connect and was recognized as a Cisco Live Distinguished Speaker.

Kashif Islam is a 20+ year veteran in the IT industry and has architected several complex, large-scale networks for some of the largest wireline and mobile service providers across the world. He is currently a Principal Telecommunication Architect in Red Hat's consulting organization and is tasked with helping service providers transform their existing mobile infrastructure into next-generation, cloud-native 5G networks. Prior to his work with Red Hat, Kashif was a senior solutions architect at Cisco Systems. During his tenure at Cisco, he devised strategies and provided technical leadership to service providers in modernizing and transforming their existing mobile backhaul networks into xHaul to support Cloud RAN architectures and new 5G services. Kashif is a Distinguished Speaker at industry events such as Cisco Live, Society of Cable and Telecommunication Engineers (SCTE), and others. He has also co-authored Open RAN (O-RAN) Alliance's xHaul Packet Switched Network Architecture Specification. Kashif is a double CCIE (#14300) and holds a Bachelor of Computer Engineering from Sir Syed University of Engineering and Technology in Karachi, Pakistan, as well as a Master of Engineering in Internetworking from Dalhousie University, Canada. Kashif lives in Raleigh, North Carolina, with his family and, when not working, enjoys hiking in the Blue Ridge mountains.

Syed Farrukh Hassan 在網路設計和部署方面擁有超過 20 年的經驗。目前，他擔任 Red Hat 的首席電信架構師，為全球 5G 客戶提供諮詢服務。在此之前，Syed 曾在 Cisco 的專業和諮詢服務組織擔任高級解決方案架構師，為各種互聯網、雲端和行動服務提供商提供指導、策略和規劃支持，協助他們採用創新的網路技術並將其網路轉型為新架構。Syed 共同撰寫了關於 NFV 和 SDN 的第一本書之一，並在公共論壇和會議中定期發言，並被認可為 Cisco Live 傑出演講者。Syed 是服務提供者和數據中心技術的雙重 CCIE (#21617)、Google 認證專業雲端網路工程師，以及認證 Kubernetes 管理員 (CKA)。他擁有巴基斯坦 NED 大學的工程學學士學位，以及美國佛羅里達州蓋恩斯維爾大學的工程學碩士學位。

Alexander Orel 在為主要互聯網和行動服務提供商設計、部署和支持大規模傳輸網路方面擁有超過 20 年的經驗。他曾在各種系統整合公司和互聯網服務提供商擔任首席網路工程師和高級網路設計師。Alexander 在 Cisco 系統的客戶體驗新產品團隊擔任解決方案架構師，專注於基於 IOS XR 的平台、NFV 技術、區段路由、應用驅動網路、EVPN 及其他尖端技術，並在職業生涯中花費了相當一部分時間。最近，Alexander 加入了 Google 的全球網路團隊，繼續應用和擴展他在大規模網路方面的知識。Alexander 擁有莫斯科物理技術學院的應用數學和物理碩士學位，並持有 R&S 和 DC 的 CCIE 認證 #10391。Alexander 在各種技術會議上，如 Cisco Live 和 Cisco Connect，經常擔任演講者，並被認可為 Cisco Live 傑出演講者。

Kashif Islam 是 IT 行業的資深專家，擁有超過 20 年的經驗，為全球一些最大的有線和行動服務提供商架構了多個複雜的大規模網路。他目前是 Red Hat 諮詢組織的首席電信架構師，負責協助服務提供商將其現有的行動基礎設施轉型為下一代雲原生 5G 網路。在加入 Red Hat 之前，Kashif 是 Cisco 系統的高級解決方案架構師。在 Cisco 任職期間，他為服務提供商制定策略並提供技術領導，協助他們現代化和轉型其現有的行動回程網路為 xHaul，以支持 Cloud RAN 架構和新的 5G 服務。Kashif 是行業活動的傑出演講者，如 Cisco Live、電纜和電信工程師協會 (SCTE) 等。他還共同撰寫了 Open RAN (O-RAN) 聯盟的 xHaul 封包交換網路架構規範。Kashif 是雙重 CCIE (#14300)，並擁有巴基斯坦卡拉奇的 Sir Syed 工程與技術大學的計算機工程學士學位，以及加拿大達爾豪斯大學的網路工程碩士學位。Kashif 與家人居住在北卡羅來納州的羅利，閒暇時喜歡在藍嶺山脈健行。