32nd Brazilian Symposium on
Computer Networks and Distributed Systems

Florianopolis - Brazil, May 5-9, 2014
Short Course 1: Network Function Virtualization: Perspectivas, Realidades e Desafios.

Authors: Raphael Rosa (UNICAMP), Marcos Siqueira (UNICAMP), Emerson Barea (UFSCar), Cesar Marcondes (UFSCar), Christian Rothenberg (UNICAMP)

Date and Time: May 5, 2014 (Monday), 8:30am to 12:00pm


Approximately a year after its conception, the Network Function Virtualization (NFV) concept has been shown prominent in telecom operators scenario. It brings the opportunity to innovate communication networks on an unimaginable time scale, the concept brought together currently about 150 members in a group of industry specifications (Industry Specification Group - ISG) within the European Telecommunication Standards Institute (ETSI). The rapid evolution of the concept comes from numerous isolated use cases of telecommunications operators, which were driven to jointly develop new concepts and standards that today constitute the core of NFV. A number of factors brought good reasons for this cause, such as operating costs and energy, time to implement and deploy new technologies to market, scalable and dynamic management of network services and availability of shared network resources through services and different platforms. Complementary to the promise of Software Defined Networks (SDN) to automate the orchestration and network configuration, NFV proposes automate the deployment and control of network
functions, which will run on platforms with virtualized servers. In this context, challenges become inherent in this NFV proposal, which address topics such as interoperability of network platforms, performance tradeoffs, security and resilience. This short course aims to: introduce the concepts and principles of NFV; elucidate the different perspectives that guide its development today, focusing on the ETSI and its working groups, addressing the challenges inherent in its creation and emancipation in the telecommunications operators; raise research topics and works until now published on the subject as well as their main references, and finally, present a demonstration of the network function virtualization technology. Through these objectives, we show both an overview of the state of the art of NFV, and how progress has been made in research since its inception. Afterwards, we will raise a discussion focused on trends in current lines of research around the topic covered in this short course, raising questions that might be addressed in future research by undergraduate and postgraduate, as well as IT professionals.