IoT usage is set to explode: Billions of things will be connected to the Internet by 2020. Emerging support applications require huge amounts of bandwidth at low latency, and the underlying network infrastructure must offer the flexibility to cope with increasingly dynamic traffic flows. This is driving the need for a solution that can provide dense aggregation across high-capacity coherent optical connections to reduce footprint and power requirements, increase fiber utilization, and provide scalable programmability of existing fiber assets.