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This project deliverable summarizes the technical discussions and presents the slides and additional decisions and technical information concerning the SFI2 Project Workshop realized in Uberlândia, Minas Gerais. The SFI2 project (https://sites.google.com/view/sfi2/home) workshop presentations and technical discussions occurred at the Federal University of Uberlândia (UFU) on April 12th - 13th 2023., {"references":["G. N. Dias, J. F. Rezende, L N. Ciuffo, I. Machado, Flavio Silva, Tereza C. de Brito, F. Redigolo, Joberto S. B. Martins, Leobino Sampaio, and Antonio Abelem. SFI2 - Slicing Future Internet Infrastructures project. In Proceedings of the The Global Experimentation for Future Internet, pages 1–3, Coimbra, Portugal, November 2019.","Joberto S B Martins, Tereza C. Carvalho, Flavio Silva, and Rodrigo Moreira. SFI2 Network Slicing Reference Architecture. Technical Report TR03/2022, Universidade de São Paulo - USP, 2022.","Rodrigo Moreira, Joberto S. B. Martins, Tereza C. M. B. Carvalho, and Flávio de Oliveira Silva. On Enhancing Network Slicing Life-Cycle Through an AI-Native Orchestration Architecture. In Leonard Barolli, editor, Advanced Information Networking and Applications, Lecture Notes in Networks and Systems, pages 124–136, Cham, 2023. Springer International Publishing.","Joberto S B Martins. Communication Slice Allocation for Network Slicing - Position Points, volume 24 of JSMNet Networking and Technical Review. 2023."]}

Network Slicing (NS) is an essential technique extensively used in 5G networks computing strategies, mobile edge computing, mobile cloud computing, and verticals like the Internet of Vehicles and industrial IoT, among others. NS is foreseen as one of the leading enablers for 6G futuristic and highly demanding applications since it allows the optimization and customization of scarce and disputed resources among dynamic, demanding clients with highly distinct application requirements. Various standardization organizations, like 3GPP's proposal for new generation networks and state-of-the-art 5G/6G research projects, are proposing new NS architectures. However, new NS architectures have to deal with an extensive range of requirements that inherently result in having NS architecture proposals typically fulfilling the needs of specific sets of domains with commonalities. The Slicing Future Internet Infrastructures (SFI2) architecture proposal explores the gap resulting from the diversity of NS architectures target domains by proposing a new NS reference architecture with a defined focus on integrating experimental networks and enhancing the NS architecture with Machine Learning (ML) native optimizations, energy-efficient slicing, and slicing-tailored security functionalities. The SFI2 architectural main contribution includes the utilization of the slice-as-a-service paradigm for end-to-end orchestration of resources across multi-domains and multi-technology experimental networks. In addition, the SFI2 reference architecture instantiations will enhance the multi-domain and multi-technology integrated experimental network deployment with native ML optimization, energy-efficient aware slicing, and slicing-tailored security functionalities for the practical domain., Comment: 10 pages, 11 figures

The future Internet and computer networks scenario requires a dynamic, on-demand, easily manageable, intelligent, and flexible network capable of supporting the different requirements of current and future applications. For attaining this objective, the research community is turning to the networks of the future involving initiatives such as the Next Generation Internet (NGI) in Europe and Tomorrow’s Internet Project in the United States, in addition to several other actions such as the next generation of mobile telecommunications networks for 2030, 6G. In Brazil, projects such as FIBRE [1], FIWARE [2], FUTEBOL [3], 5GINFIRE[2], NECOS [4], CloudNEXT, and SFI2 [5] [6], carried out in collaborations between Europe and Brazil, create conditions to experiment with different scenarios of networks and applications with a focus on the future. This SFI2 Workshop aims to discuss, exchange research ideas and propose directions and solutions toward the utilization of network slicing (NS) as a new paradigm capable to support future Internet evolution. SFI2 will focus on experimental network integration as a guidance direction for these discussions and proposals., {"references":["Antonio Abelem, Michael Stanton, Iara Machado, Marcos Salvador, Luiz Magalhaes, Natalia Fernandes, Sand Correa, Kleber Cardoso, Cesar Marcondes, Joberto Martins, Jose Monteiro, Tereza Carvalho, and José Rezende. FIT@ BR - A Future Internet Testbed in Brazil. In Proceedings of the APAN – Network Research Workshop, pages 1–8, 2013.","Aloizio P. Silva, Christos Tranoris, Spyros Denazis, Susana Sargento, João Pereira, Miguel Luís, Rodrigo Moreira, Flávio Silva, Ivan Vidal, Borja Nogales, Reza Nejabati, and Dimitra Simeonidou. 5GInfire: An End-to-End Open5G Vertical Network Function Ecosystem. Ad Hoc Networks, 93:101895, October 2019.","Cristiano Both, Rafael Guimaraes, Frank Slyne, Juliano Wickboldt, Magnos Martinello, Cristina Dominicini, Rafael Martins, Yi Zhang, Diego Cardoso, Rodolfo Villaca, Isabella Ceravolo, Reza Nejabati, Johann Marquez-Barja, Marco Ruffini, and Luiz DaSilva. FUTEBOL Control Framework: Enabling Experimentation in Convergent Optical, Wireless, and Cloud Infrastructures. IEEE Communications Magazine, 57(10):56–62, October 2019.","Stuart Clayman, Augusto Neto, Fábio Verdi, Sand Correa, Silvio Sampaio, Ilias Sakelariou, Lefteris Mamatas, Rafael Pasquini, Kleber Cardoso, Francesco Tusa, Christian Rothenberg, and Joan Serrat. The NECOS Approach to End-to-End Cloud-Network Slicing as a Service. IEEE Communications Magazine, 59(3):91–97, March 2021. Conference Name: IEEE Communications Magazine.","Gustavo Neves Dias, José Ferreira Rezende, Leandro Neumann Ciuffo, Iara Machado, Flavio de Oliveira Silva, Tereza Cristina de Brito, Fernando Frota Redigolo, Joberto S. B. Martins, Leobino N. Sampaio, and Antonio Jorge Gomes Abelem. SFI2 - Slicing Future Internet Infrastructures project. In Proceedings of the The Global Experimentation for Future Internet (GEFI), pages 1–3, Coimbra, Portugal, November 2019.","Flávio de Oliveira Silva, Tereza Cristina Carvalho, Joberto S. B. Martins, Cristiano Bonato Both, and Daniel Fernandes Macedo. Slicing Future Internet Infrastructures Round Table. Technical Report TR01/2021, Universidade de São Paulo (USP), São Paulo, Brazil, 2021."]}