The first chapter of this title concerns virtualization techniques that allow sharing computational resources basically, slicing a real computational environment into virtual computational environments that are isolated from one another. The Xen and OpenFlow virtualization platforms are then presented in Chapter 2 and a performance analysis of both is provided. This chapter also defines the primitives that the network virtualization infrastructure must provide for allowing the piloting plane to manage virtual network elements. Following this, interfaces for system management of the two platforms are proposed in Chapter 3. To control and manage virtual network elements, five primitives that the network virtualization infrastructure must provide are defined: instantiate, delete, migrate, monitor and set. The book then moves on to survey existing control algorithms for virtual networking. It also describes the main challenges for packet forwarding using Xen as a virtualization tool and describes, in more detail, a proposal for local control of virtual networks. Within each physical node, this proposal guarantees the service level acquired by each virtual network, even in the presence of misbehaving virtual networks. Contents 1. Virtualization, Lu s Henrique M.K. Costa. 2. Virtual Network Interfaces, Miguel Elias M. Campista. 3. Performance Improvement and Control of Virtual Network Elements, Igor M. Moraes. 4. State of the Art in Context-Aware Technologies, Edmundo R.M. Madeira and Guy Pujolle. 5. Providing Isolation and Quality-of-Service to Virtual Networks, Miguel Elias M. Campista. 6. Piloting System, Edmundo R.M. Madeira and Nelson Luis S. Da Fonseca. 7. Management and Control: The Situated View, Otto Carlos M.B. Duarte. 8. System Architecture Design, Otto Carlos M.B. Duarte. About the Authors Otto Carlos M.B. Duarte is Full Professor at Universidade Federal do Rio de Janeiro in Brazil, where he has worked since 1978. His research interests include mobile communications, security, multicast, and QoS guarantees. Guy Pujolle is currently Professor at University Pierre and Marie Curie (Paris VI) in France and a member of the Scientific Advisory Board of Orange/France Telecom Group. He has published widely in the area of computer systems modeling and performance, queuing theory, high-speed networks, intelligence in networking, wireless networks, and Post-IP networks, including 19 influential texts and monographs in these areas.

The first chapter of this title concerns virtualizationtechniques that allow sharing computational resources basicallyslicing a real computational environment into virtual computationalenvironments that are isolated from one another.The Xen and OpenFlow virtualization platforms are then presented inChapter 2 and a performance analysis of both is provided. Thischapter also defines the primitives that the network virtualizationinfrastructure must provide for allowing the piloting plane tomanage virtual network elements.Following this, interfaces for system management of the twoplatforms are proposed in Chapter 3. To control and manage virtualnetwork elements, five primitives that the network virtualizationinfrastructure must provide are defined: instantiate, deletemigrate, monitor and set.The book then moves on to survey existing control algorithms forvirtual networking. It also describes the main challenges forpacket forwarding using Xen as a virtualization tool and describesin more detail, a proposal for local control of virtual networks.Within each physical node, this proposal guarantees the servicelevel acquired by each virtual network, even in the presence ofmisbehaving virtual networks.Contents1. Virtualization, Luís Henrique M.K. Costa.2. Virtual Network Interfaces, Miguel Elias M. Campista.3. Performance Improvement and Control of Virtual Network ElementsIgor M. Moraes.4. State of the Art in Context-Aware Technologies, Edmundo R.M.Madeira and Guy Pujolle.5. Providing Isolation and Quality-of-Service to Virtual NetworksMiguel Elias M. Campista.6. Piloting System, Edmundo R.M. Madeira and Nelson Luis S. DaFonseca.7. Management and Control: The Situated View, Otto Carlos M.B.Duarte.8. System Architecture Design, Otto Carlos M.B. Duarte.About the AuthorsOtto Carlos M.B. Duarte is Full Professor at UniversidadeFederal do Rio de Janeiro in Brazil, where he has worked since1978. His research interests include mobile communicationssecurity, multicast, and QoS guarantees.Guy Pujolle is currently Professor at University Pierre and MarieCurie (Paris VI) in France and a member of the Scientific AdvisoryBoard of Orange/France Telecom Group. He has published widely inthe area of computer systems modeling and performance, queuingtheory, high-speed networks, intelligence in networking, wirelessnetworks, and Post-IP networks, including 19 influential texts andmonographs in these areas.

List of Acronyms xiPreface xvOtto Carlos M.B. DUARTE and Guy PUJOLLEChapter 1. Virtualization 1Luís Henrique M.K. COSTA1.1. Virtualization techniques 41.2. Virtualization tools 71.3. Scenario and methodology 151.4. Performance evaluation 191.5. Summary 371.6. Bibliography 38Chapter 2. Virtual Network Interfaces 39Miguel Elias M. CAMPISTA2.1. Virtual networks: isolation, performance and trends 412.2. Xen prototype 682.3. OpenFlow prototype 752.4. Summary 802.5. Bibliography 80Chapter 3. Performance Improvement and Control of VirtualNetwork Elements 83Igor M. MORAES3.1. Xen-based prototype 853.2. OpenFlow-based prototype 963.3. Summary 1063.4. Bibliography 107Chapter 4. State of the Art in Context-AwareTechnologies 109Edmundo R.M. MADEIRA and Guy PUJOLLE4.1. Autonomic systems 1104.2. Piloting with multi-agent systems 1134.3. Options to build the autonomic platform 1174.4. Context-aware technology for network control 1274.5. Summary 1394.6. Acknowledgments 1414.7. Bibliography 141Chapter 5. Providing Isolation and Quality-of-Service toVirtual Networks 145Miguel Elias M. CAMPISTA5.1. Background on control and management of virtualnetworks 1465.2. Challenges in packet forwarding using Xen 1495.3. Controlling Domain 0 shared resources 1515.4. Summary 1595.5. Bibliography 159Chapter 6. Piloting System 163Edmundo R.M. MADEIRA and Nelson LUIS S. DA FONSECA6.1. Autonomic Piloting Systems 1646.2. Piloting plane functions and requirements 1716.3. Preliminary piloting plane design 1726.4. The piloting agents 1896.5. Testbed 1926.6. The multi-agent APS 1976.7. Results 2006.8. Multi-agent system for self-management of virtualnetworks 2026.9. Summary 2106.10. Bibliography 212Chapter 7. Management and Control: The Situated View217Otto Carlos M.B. DUARTE7.1. The dynamic SLA controller 2187.2. Update prediction mechanism for localinformation 2317.3. Summary 2467.4. Bibliography 247Chapter 8. System Architecture Design 251Otto Carlos M.B. DUARTE8.1. Overall architecture design 2538.2. A hybrid Xen and OpenFlow system architecturedesign 2758.3. Summary 2878.4. Bibliography 289List of Authors 293Index 295