Designing Networks and Services for the Cloud

From the contents:
Introduction xix
Part I Building Blocks for Offering Network Services in the Cloud
Chapter 1 Virtualization 1
Virtualization Basics 1
One to Many 2
Many to One 2
Virtualization: A Brief History 3
Server Virtualization 3
Drivers for Server Virtualization 4
Approaches to Server Virtualization 5
Components of Server Virtualization 6
CPU Virtualization 6
Memory Virtualization 7
I/O Virtualization 8
Benefits and Risks of Server Virtualization 11
Network Virtualization 12
Drivers for Network Virtualization 12
Logical Segmentation: One to Many 14
Path Isolation 14
Access Control 17
Sharing Network Services 17
Network Consolidation: Many to One 18
Software Defined Networking 19
Virtualization-Aware Networks 20
Benefits and Risks of Network Virtualization 21
Storage Virtualization 22
Drivers for Storage Virtualization 22
How Storage Virtualization Works 22
Common Implementations of Storage Virtualization 23
Array-Based Storage Virtualization 23
Network-Based Storage Virtualization 23
Benefits and Risks of Storage Virtualization 24
Summary 25
Review Questions 25
References 26
Chapter 2 Arrival of the Cloud 29
Phases of Virtualization 29
Virtualization Enables the Cloud 31
What Exactly Is Cloud Computing? 32
A Little History 34
Trends Driving the Growth of Cloud Computing 35
Impact of the Cloud 37
Spur Innovation and Entrepreneurship Globally 38
Collect and Analyze Big Data 39
Cloud Challenges 41
Security 41
Compliance 42
SLA: Reliability and Performance 42
Interoperability 43
Summary 44
Review Questions 45
References 45
Chapter 3 Cloud Taxonomy and Service Management 47
Cloud Service Models 47
Software-as-a-Service 48
SaaS Stack 49
PaaS 50
PaaS Components 52
IaaS 53
IaaS Components 54
Comparing IaaS, PaaS, and SaaS 55
Scope and Control 55
Evolution 56
Deployment Models for the Cloud 56
Public Cloud 57
Private Cloud 57
Hybrid Cloud 57
Community Clouds 59
Open

Huseni Saboowala is engaged at Cisco as a senior technical leader in the areas of Software Defined Networking, Cloud, and Unified Communications. He currently focuses on evangelizing the role of the network and network services in accelerating the adoption of cloud services by enterprises. His proposals have won Cisco-wide recognition and awards, and he continues to cultivate business-driven innovations that further enrich application-network interactions. Within Cisco SRG, he leads the architecture and deployment of a custom private cloud, driving his concept to reality across several groups. He has filed patents and spoken on Cloud and UC to large audiences on several occasions. Before joining Cisco, Huseni held several positions, including at Nortel, TTI (acquired by Sonus Networks), and dynamicsoft (acquired by Cisco). Over the past 18 years, his activities have ranged from solution architecture, design, validation, and deployment to leadership of global teams, innovation coaching, and developing technology strategies. He holds a Bachelor's degree in Electronics Engineering from the University of Bombay, and a Master's degree in Software Engineering from Kansas State University. Muhammad Abid is an innovator who is currently working as a senior product manager in the Services and Routing Group at Cisco. He is engaged in developing the next generation of platforms and innovative technologies that will support data center interconnect and software defined network (SDN) frameworks and play a key role in enabling cloud-based services and applications. Prior to this, he was focused on architecting solutions and driving technology roadmaps across multiple business units for unified communications, collaboration, and threat defense. Before joining Cisco, Muhammad held several positions, including at T-Systems, Padcom, Telcordia, and Latham & Watkins. Over the past 18 years, he has been involved in building innovative products and designing and architecting