The STRONGEST and MAINS projects jointly demonstrated an innovative control plane architecture, based on a GMPLS/H-PCE approach, in the workshop “Control Plane architectures for new optical switching technologies” that was held in Amsterdam , in context of ECOC 2012. The experiment demonstrated automated service provisioning between two subwavelegth domains located at Nextworks (Pisa) through MPLS/WSON domains located at CNIT (Pisa), CTTC (Barcelona) and NSN (Munich).