Field Trial of Programmable L3 VPN Service Deployment Using SDN-Based Multi-domain Service Provisioning over IP/Optical Networks - Samier Barguil; Víctor López; Cristyan Manta-Caro; Arturo Mayoral Lopez-de-Lerma; Óscar González de Dios; Edward Echeverry; Juan Pedro Fernández-Palacios; Janne Karvonen; Jutta Kemppainen; Natalia Maya; Ricard Vilalta (IEEE Netw., 2021)