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Table of contents
Remerciements
Abstract
Resume en Langue Francaise
Contents
List of Figures
List of Tables
Acronyms
1 Introduction
1.1 Server Virtualization
1.1.1 Virtualization: historical facts
1.1.2 Hypervisor or Virtual Machine Monitor Architecture
Hosted Mode
Native Mode
1.2 The Dawn of Cloud Networking
1.2.1 Software Dened Networking
1.2.2 Network Functions Virtualization
2 Related Work
2.1 Data Center Fabrics
2.1.1 Topologies
2.1.2 Ethernet Switching
Enhancements to IEEE 802.1D
Ethernet Carrier Grade
Toward Ethernet Routing
Cloud Network Overlay Protocols
2.2 Data Center Network Optimization
2.2.1 Virtual Network Embedding
2.2.2 Virtual Machine Placement
2.2.3 Trac Engineering
Explicit routing
2.2.4 Trac Fairness
3 Virtual Machine Placement
3.1 Introduction
3.2 Optimization Problem
Enabling multipath capabilities
Enabling virtual bridging
3.3 Heuristic approach
3.3.1 Reformulation of the optimization problem
3.3.2 Matching Problem
3.3.3 Steps of the repeated matching heuristic
3.3.4 Time complexity
3.4 Simulation results
3.4.1 Trac model
3.4.2 Energy eciency considerations
Optimization goal sensibility with respect to multi-path forwarding features
Optimization goal sensibility with respect to virtual-bridging features
3.4.3 Trac engineering considerations
Optimization goal sensibility with respect to multipath forwarding features
Optimization goal sensibility with respect to virtual-bridging features
3.5 Summary
4 Trac Fairness of Data Center Fabrics
4.1 Introduction
4.2 Problem Formulation
4.2.1 Linear approximation of the objective
4.2.2 On weights wd
4.3 Performance evaluation
4.3.1 Study cases
4.3.2 Results
Throughput allocation
Trac distribution
Path Diversity
4.4 Summary
5 Virtual Network Function Placement and Routing
5.1 Introduction
5.2 Background
5.3 Network Model
5.3.1 Problem Statement
5.3.2 Mathematical Formulation
5.3.3 Multi-objective math-heuristic resolution
5.3.4 Possible modeling renements and customization
5.4 Results
5.4.1 TE vs. TE-NFV objectives sensibility
5.4.2 Sensibility to the latency bound
5.4.3 Buerized vs buerless VNF switching mode
5.5 Summary
6 Conclusion and Perspectives
Publications
I Appendix
.1 Matching cost matrix computation
References
