Song Yang received the B.S. degree in software engineering and the M.S. degree in computer science from Dalian University of Technology, China, in 2008 and 2010, respectively, and the Ph.D. degree from Delft University of Technology, The Netherlands, in 2015. From August 2015 to August 2017, he worked as postdoc researcher for the EU FP7 Marie Curie Actions CleanSky Project in Gesellschaft fur wissenschaftliche Datenverarbeitung mbH Goettingen (GWDG), Goettingen, Germany. He is currently an associate professor at School of Computer Science and Technology in Beijing Institute of Technology, China. His research interests focus data communication networks, cloud/edge computing and network function virtualization.Nan He received her B.E. degree in Computer and Information from Hefei University of Technology, China in 2016 and received her M.S. degree from Jilin University, China in 2019. Currently she is a Ph.D. student in the School of Computer Scienceand Technology, Beijing Institute of Technology. Her research interests include network function virtualization and network resource optimization management based on reinforcement learning.Fan Li received the PhD degree in computer science from the University of North Carolina at Charlotte in 2008, MEng degree in electrical engineering from the University of Delaware in 2004, MEng and BEng degrees in communications and information system from Huazhong University of Science and Technology, China in 2001 and 1998, respectively. She is currently a professor at School of Computer Science and Technology in Beijing Institute of Technology, China. Her current research focuses on wireless networks, ad hoc and sensor networks, and mobile computing. Xiaoming Fu received his Ph.D. in computer science from Tsinghua University, Beijing, China in 2000. He was then a research staff at the Technical University Berlin until joining the University of Goettingen, Germany in 2002, where he has been a professor in computer science and heading the Computer Networks Group since 2007. Prof. Fu's research interests include network architectures, protocols, and applications. He is currently an editorial board member of IEEE Network, IEEE Transactions on Network and Service Management, and has served on the organization or program committees of leading conferences such as INFOCOM, ICNP, ICDCS, MOBICOM, MOBIHOC, CoNEXT, ICN and COSN. He is an IEEE Fellow, an ACM Distinguished Member, a fellow of IET and member of the Academia Europaea.

• Chapter 1 An Introduction to NFV.- Chapter 2 Resource Allocation Problems Formulation and Analysis in NFV.- Chapter 3 Delay-Aware and Availability-Aware VNF placement and routing.- Chapter 4 VNF placement and routing in edge clouds.- Chapter 5 Traffic Routing in Stochastic NFV Networks.- Chapter 6 Online Virtual Network Function Control Across Geo-Distributed Datacenters.- Chapter 7 Deep Reinforcement Learning for NFV.- Chapter 8 Future Work and Summarization.

Song Yang received the B.S. degree in software engineering and the M.S. degree in computer science from Dalian University of Technology, China, in 2008 and 2010, respectively, and the Ph.D. degree from Delft University of Technology, The Netherlands, in 2015. From August 2015 to August 2017, he worked as postdoc researcher for the EU FP7 Marie Curie Actions CleanSky Project in Gesellschaft fur wissenschaftliche Datenverarbeitung mbH Goettingen (GWDG), Goettingen, Germany. He is currently an associate professor at School of Computer Science and Technology in Beijing Institute of Technology, China. His research interests focus data communication networks, cloud/edge computing and network function virtualization.Nan He received her B.E. degree in Computer and Information from Hefei University of Technology, China in 2016 and received her M.S. degree from Jilin University, China in 2019. Currently she is a Ph.D. student in the School of Computer Scienceand Technology, Beijing Institute of Technology. Her research interests include network function virtualization and network resource optimization management based on reinforcement learning.Fan Li received the PhD degree in computer science from the University of North Carolina at Charlotte in 2008, MEng degree in electrical engineering from the University of Delaware in 2004, MEng and BEng degrees in communications and information system from Huazhong University of Science and Technology, China in 2001 and 1998, respectively. She is currently a professor at School of Computer Science and Technology in Beijing Institute of Technology, China. Her current research focuses on wireless networks, ad hoc and sensor networks, and mobile computing. Xiaoming Fu received his Ph.D. in computer science from Tsinghua University, Beijing, China in 2000. He was then a research staff at the Technical University Berlin until joining the University of Goettingen, Germany in 2002, where he has been a professor in computer science and heading the Computer Networks Group since 2007. Prof. Fu's research interests include network architectures, protocols, and applications. He is currently an editorial board member of IEEE Network, IEEE Transactions on Network and Service Management, and has served on the organization or program committees of leading conferences such as INFOCOM, ICNP, ICDCS, MOBICOM, MOBIHOC, CoNEXT, ICN and COSN. He is an IEEE Fellow, an ACM Distinguished Member, a fellow of IET and member of the Academia Europaea.

• Chapter 1 An Introduction to NFV.- Chapter 2 Resource Allocation Problems Formulation and Analysis in NFV.- Chapter 3 Delay-Aware and Availability-Aware VNF placement and routing.- Chapter 4 VNF placement and routing in edge clouds.- Chapter 5 Traffic Routing in Stochastic NFV Networks.- Chapter 6 Online Virtual Network Function Control Across Geo-Distributed Datacenters.- Chapter 7 Deep Reinforcement Learning for NFV.- Chapter 8 Future Work and Summarization.

Song Yang received the B.S. degree in software engineering and the M.S. degree in computer science from Dalian University of Technology, China, in 2008 and 2010, respectively, and the Ph.D. degree from Delft University of Technology, The Netherlands, in 2015. From August 2015 to August 2017, he worked as postdoc researcher for the EU FP7 Marie Curie Actions CleanSky Project in Gesellschaft fur wissenschaftliche Datenverarbeitung mbH Goettingen (GWDG), Goettingen, Germany. He is currently an associate professor at School of Computer Science and Technology in Beijing Institute of Technology, China. His research interests focus data communication networks, cloud/edge computing and network function virtualization.Nan He received her B.E. degree in Computer and Information from Hefei University of Technology, China in 2016 and received her M.S. degree from Jilin University, China in 2019. Currently she is a Ph.D. student in the School of Computer Scienceand Technology, Beijing Institute of Technology. Her research interests include network function virtualization and network resource optimization management based on reinforcement learning.Fan Li received the PhD degree in computer science from the University of North Carolina at Charlotte in 2008, MEng degree in electrical engineering from the University of Delaware in 2004, MEng and BEng degrees in communications and information system from Huazhong University of Science and Technology, China in 2001 and 1998, respectively. She is currently a professor at School of Computer Science and Technology in Beijing Institute of Technology, China. Her current research focuses on wireless networks, ad hoc and sensor networks, and mobile computing. Xiaoming Fu received his Ph.D. in computer science from Tsinghua University, Beijing, China in 2000. He was then a research staff at the Technical University Berlin until joining the University of Goettingen, Germany in 2002, where he has been a professor in computer science and heading the Computer Networks Group since 2007. Prof. Fu's research interests include network architectures, protocols, and applications. He is currently an editorial board member of IEEE Network, IEEE Transactions on Network and Service Management, and has served on the organization or program committees of leading conferences such as INFOCOM, ICNP, ICDCS, MOBICOM, MOBIHOC, CoNEXT, ICN and COSN. He is an IEEE Fellow, an ACM Distinguished Member, a fellow of IET and member of the Academia Europaea.

• Chapter 1 An Introduction to NFV.- Chapter 2 Resource Allocation Problems Formulation and Analysis in NFV.- Chapter 3 Delay-Aware and Availability-Aware VNF placement and routing.- Chapter 4 VNF placement and routing in edge clouds.- Chapter 5 Traffic Routing in Stochastic NFV Networks.- Chapter 6 Online Virtual Network Function Control Across Geo-Distributed Datacenters.- Chapter 7 Deep Reinforcement Learning for NFV.- Chapter 8 Future Work and Summarization.