The 25th International Conference on Optical Network Design and Modelling (ONDM 2021) has been organised by the Chalmers University of Technology from the 28th of June to the 1st of July 2021. ONDM 2021 addresses cutting-edge research in established areas of optical networking and their adoption in support of a wide variety of new services and applications. TeraFlow is organising a 2-hour workshop with the tittle: “Micro-service based autonomic traffic control in 5G and beyond”.