Phase 0 – proprietary NMSs Phase 1 – abstract service management from device management Phase 2 – replace some devices with white-boxes Phase 3 – end-to-end open automation Submitted 1 May 2017 - 17:07, last modified 1 May 2017 - 19:04 Phase 0 – proprietary NMSs Phase 1 – abstract service management from device management Phase 2 – replace some devices with white-boxes Phase 3 – end-to-end open automation ‹ Target architecture for SDN transport up Phase 0 – proprietary NMSs ›