ONOS Type Item Nodal Control Multiple southbound driver with minimum additional implementation Transaction & rollback of node configuration Configuration synchronization between controller and device Network Control Network topology model of multiple layer and technology (WDM, ROADM, Ethernet, LSP, PW, Protection, ...) Transaction & rollback of network configuration across multiple nodes End-End path provisioning with automatic path computation within a single network Multi-domain Network Control End-End path provisioning with automatic path computation across multi-domain networks Transaction & rollback of multi-domain network configuration Impact analysis across multiple layers and domains Protection modeling Layered Intent Monitoring/Alarm Handling Open-IF Expansion Expected to be developed Transaction & rollback