Cloud Networking and Resilience - Designing Scalable, Fault-Tolerant, and Highly-Available Cloud Network Architectures

Cloud Networking and Resilience is a focused, practical guide to designing cloud infrastructure that stays robust, scalable, and always available—even when things go wrong. While most cloud books offer broad overviews, this book zeroes in on the networking layer, providing a detailed roadmap for building resilient cloud networks that can withstand outages, adapt to failures, and support mission-critical applications.

The book starts by explaining key concepts such as resilience, availability, and disaster recovery, helping readers understand the unique role each plays in modern cloud architecture. From there, it explores the technical backbone of cloud networking, including virtualization, software-defined networking (SDN), and DNS fundamentals. Dedicated chapters walk through real-world strategies for DNS failover, BGP optimization, Anycast routing, and multi-region architectures—equipping readers with tools to minimize downtime and performance degradation. A standout aspect of this book is its layer-by-layer approach to resilience, aligned with the OSI model—from physical connectivity to application-level failovers. It also dives into cutting-edge traffic engineering and cell-based architectures to enhance scalability and isolate faults. Later chapters introduce CI/CD practices like blue/green deployments and automated rollbacks, showing how resilience can be baked into deployment pipelines.

Whether you're a cloud architect, DevOps professional, or network engineer, this book offers the knowledge and best practices you need to build fault-tolerant cloud environments. With case studies, emerging trends like AIOps, and a forward-looking take on sustainability and edge computing, this is an essential guide for building the next generation of resilient cloud systems.

 

What you will learn:

• Design cloud networks that are resilient by default to reduce outages and service disruptions 


• Apply DNS failover and multi-cloud strategies to ensure continuous availability


• Optimize traffic routing using BGP and other techniques for efficient global performance


• Follow best practices for building distributed networks engineered for high availability and fault tolererance

Who this book is for:

This book is for cloud architects, network engineers, and DevOps teams. It’s especially useful for those working on multi-cloud, hybrid deployments, and disaster recovery planning. Ideal for anyone focused on traffic engineering, high availability, and business continuity in the cloud.

List of contents

Chapter 1. What is Resilience in Resilience in the Cloud era.- Chapter 2. Fundamentals of Cloud Networking and Network Topologies.- Chapter 3. DNS Fundamentals.- Chapter 4. Resilient DNS Architectures and Techniques.- Chapter 5. Implementing Resilience Throughout the OSI Model with AWS Examples.- Chapter 6. Building Network Isolation with Cell-Based Architectures, Availability Zones and Regions.- Chapter 7. Traffic Engineering for Cloud Resilience and Performance.- Chapter 8. Operational Resilience and Disaster Recovery.- Chapter 9. The Next Decade of Cloud Resilience.

About the author

Cristian Critelli
 is a cloud networking and resilience specialist with deep expertise in network engineering, multi-region architectures, and traffic engineering. As the EMEA Lead for Networking and Resilience at Amazon Web Services (AWS), he helps enterprises and partners design and operate scalable, highly available, and fault-tolerant cloud solutions. With a background in network engineering, cloud networking, and reliability, Cristian has authored technical blogs, white papers, and enablement material used by cloud professionals worldwide. He holds over 57 certifications across AWS, CISCO, Microsoft, Riverbed, and Wireshark, and is a recognized technical speaker, industry expert and advocate for resilient, failure-tolerant cloud architectures.

Summary

Cloud Networking and Resilience is a focused, practical guide to designing cloud infrastructure that stays robust, scalable, and always available—even when things go wrong. While most cloud books offer broad overviews, this book zeroes in on the networking layer, providing a detailed roadmap for building resilient cloud networks that can withstand outages, adapt to failures, and support mission-critical applications.
The book starts by explaining key concepts such as resilience, availability, and disaster recovery, helping readers understand the unique role each plays in modern cloud architecture. From there, it explores the technical backbone of cloud networking, including virtualization, software-defined networking (SDN), and DNS fundamentals. Dedicated chapters walk through real-world strategies for DNS failover, BGP optimization, Anycast routing, and multi-region architectures—equipping readers with tools to minimize downtime and performance degradation. A standout aspect of this book is its layer-by-layer approach to resilience, aligned with the OSI model—from physical connectivity to application-level failovers. It also dives into cutting-edge traffic engineering and cell-based architectures to enhance scalability and isolate faults. Later chapters introduce CI/CD practices like blue/green deployments and automated rollbacks, showing how resilience can be baked into deployment pipelines.
Whether you're a cloud architect, DevOps professional, or network engineer, this book offers the knowledge and best practices you need to build fault-tolerant cloud environments. With case studies, emerging trends like AIOps, and a forward-looking take on sustainability and edge computing, this is an essential guide for building the next generation of resilient cloud systems.
 
What you will learn:

• Design cloud networks that are resilient by default to reduce outages and service disruptions 
• Apply DNS failover and multi-cloud strategies to ensure continuous availability
• Optimize traffic routing using BGP and other techniques for efficient global performance
• Follow best practices for building distributed networks engineered for high availability and fault tolererance

Who this book is for:
This book is for cloud architects, network engineers, and DevOps teams. It’s especially useful for those working on multi-cloud, hybrid deployments, and disaster recovery planning. Ideal for anyone focused on traffic engineering, high availability, and business continuity in the cloud.

Product details

• Authors: Cristian Critelli
• Publisher: Springer EN
• Languages: English
• Product format: Paperback / Softback
• Release: 17.06.2026
• EAN: 9798868824357
• ISBN: 979-8-8688-2435-7
• Illustrations: Approx. 350 p.
• Subjects: Natural sciences, medicine, IT, technology > IT, data processing > Data communication, networks; Software Engineering, Cloud Computing, Disaster Recovery, Cloud Networking, Distributed Networks, BGP (Border Gateway Protocol) Routing in the Cloud