A MARL Approach to Employ Intelligent Traffic Steering in SD-WAN. - Luca Giacometti; Ivano Cerrato; Hongyu Lu; Francesco Lucrezia; Luca Oliva; Tommaso Scordo; Keerthikumaran Selvamuthukumaran; Giacomo Sguotti; Sebastian Troia; Giacomo Verticale (CSCN, 2025)