This demonstration of a 100 Gbps DWDM system, with equipment from the Padtec company, presents the link between Unicamp (State University of Campinas) and CCE-USP (Electronic Computer Center of the University of São Paulo), using fibers of the Kyatera network, of approximately 130 km. This is the first 100G link, using 100% Brazilian equipment, in education and research networks in Brazil.