Saved costs: there was no need to replace the legacy network infrastructure, as it was integrated with the new SDN solution.
Operational simplicity: the traffic forwarding across a heterogeneous data plane existing in the client's environment could be controlled by a single SDN control plane (a custom ONOS implementation).
Reduced risks: a well-suited delivery process allowed for efficient interactions with the client, incremental delivery, and efficient testing.
Identified the NBI (northbound interface) protocols supported by:
Implemented the missing adapters.
Analysed the traffic patterns in the client's intra DC network.
Designed all the traffic-related forwarding schemes and the relevant SDN control logic.
Enhanced ONOS with:
Defined the test suite and actively supported the client during the test campaign.