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We present on the design and operational aspects of our open line system approach for overcoming cost, capacity and flexibility limitations with traditional systems. Dramatic growth of datacenter traffic was supported by separation of the terminal equipment from the optical layer allowing the introduction of multi-vendor, best-of-breed coherent terminal equipment.
•Enable flexibility on Ethernet interface: Custom rates Efficient LAG Match transport bandwidth Unbounded MLG Channelization Increase interface reliability Break Ethernet and transport roadmap marriage •Ready to be adopted on 100GE interface Faster Ethernet rates added in future versions.
We describe a model-based approach for building a transport SDN platform that uses operator-defined data models to build common APIs for managing multi-vendor optical networks consisting of terminal devices and line systems.
High order digital coherent modulation schemes and adaptive modulation techniques allow flexible rate DWDM line transmission to maximize the transmission capacity of an optical path. We show that FlexE on the client side enables low cost DCI transport devices to take advantage of flexible rate line transmission without the need to incorporate scalable grooming fabrics in the transport device.
We provide an overview of the underlying drivers for capacity growth and discuss technologies and emerging management models (e.g., SDN) to actualize and manage this capacity in terrestrial long haul and subsea links.
Mega data centers and their interconnection networks have drawn great attention in recent years because of the rapid public adoption of cloud-based services. The unprecedented amount of data that needs to be communicated between data centers imposes new requirements and challenges to inter-data-center optical networks. In this article, we discuss the traffic growth trends and capacity demands of Google??s...
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