Virtual Networks

The first chapter of this title concerns virtualizationtechniques that allow sharing computational resources basically,slicing 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, delete,migrate, 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 describes,in 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. Contents 1. Virtualization, Luís 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. DaFonseca. 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 UniversidadeFederal do Rio de Janeiro in Brazil, where he has worked since1978. His research interests include mobile communications,security, 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.