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Informationen zum Autor Igor Faynberg Bell Labs Fellow, CTO of Stargazers Consulting, and Adjunct Professor of Computer Science at Stevens Hui-Lan Lu Bell Labs Fellow at Alcatel-Lucent Dor Skuler Serial entrepreneur, Founder and CEO of Intuition Robotics, formerly SVP Alcatel-Lucent, Founder and General Manager of CloudBand Business Unit Klappentext Cloud Computing: Business Trends and Technologies provides a broad introduction to Cloud computing technologies and their applications to IT and telecommunications businesses (i.e., the network function virtualization, NFV). To this end, the book is expected to serve as a textbook in a graduate course on Cloud computing. The book examines the business cases and then concentrates on the technologies necessary for supporting them. In the process, the book addresses the principles of - as well as the known problems with - the underlying technologies, such as virtualization, data communications, network and operations management, security and identity management. It introduces, through open-source case studies (based on OpenStack), an extensive illustration of lifecycle management. The book also looks at the existing and emerging standards, demonstrating their respective relation to each topic. Overall, this is an authoritative textbook on this emerging and still-developing discipline, which -Guides the reader through basic concepts, to current practices, to state-of-the-art applications. -Considers technical standards bodies involved in Cloud computing standardization. -Is written by innovation experts in operating systems and data communications, each with over 20 years' experience in business, research, and teaching. Zusammenfassung Cloud Computing: Business Trends and Technologies provides a broad introduction to Cloud computing technologies and their applications to IT and telecommunications businesses (i.e. ! the network function virtualization! NFV). To this end! the book is expected to serve as a textbook in a graduate course on Cloud computing. Inhaltsverzeichnis About the Authors ix Acknowledgments xi 1 Introduction 1 References 6 2 The Business of Cloud Computing 7 2.1 IT Industry Transformation through Virtualization and Cloud 7 2.2 The Business Model Around Cloud 13 2.2.1 Cloud Providers 14 2.2.2 Software and Service Vendors 15 2.3 Taking Cloud to the Network Operators 15 References 18 3 CPU Virtualization 19 3.1 Motivation and History 20 3.2 A Computer Architecture Primer 21 3.2.1 CPU, Memory, and I/O 21 3.2.2 How the CPU Works 23 3.2.3 In-program Control Transfer: Jumps and Procedure Calls 25 3.2.4 Interrupts and Exceptions-the CPU Loop Refined 28 3.2.5 Multi-processing and its Requirements-The Need for an Operating System 34 3.2.6 Virtual Memory-Segmentation and Paging 38 3.2.7 Options in Handling Privileged Instructions and the Final Approximation of the CPU Loop 42 3.2.8 More on Operating Systems 44 3.3 Virtualization and Hypervisors 48 3.3.1 Model, Requirements, and Issues 49 3.3.2 The x86 Processor and Virtualization 52 3.3.3 Dealing with a Non-virtualizable CPU 55 3.3.4 I/O Virtualization 57 3.3.5 Hypervisor Examples 60 3.3.6 Security 65 References 69 4 Data Networks-The Nervous System of the Cloud 71 4.1 The OSI Reference Model 74 4.1.1 Host-to-Host Communications 74 4.1.2 Interlayer Communications 76 4.1.3 Functional Description of Layers 79 4.2 The Internet Protocol Suite 85 4.2.1 IP-The Glue of the Internet 87 4.2.2 The Internet Hourglass 98 4.3 Quality of Service in IP Networks 102 4.3.1 Pac...
