NeTS: Small: Collaborative Research: Design and Provisioning for Inter-Datacenter Multigranular Flexible Optical Networks

对云计算服务的需求不断增长，大型云计算中心也在不断发展以满足这一需求。随着对数据和数据分析需求的增长，提供商正在转向地理分布的数据中心，为客户提供对信息和计算能力的极低延迟访问。这导致了高容量、高度变化的数据中心间网络流量，必须通过光纤网络可靠且经济高效地容纳这些流量。 敏捷和灵活的光网络的最新进展，使灵活的光网络（FONs）的一个有前途的候选人，以满足这些动态和异构的连接需求。该项目的目标是为数据中心间的FONs开发网络设计和配置策略，以支持广泛的数据流量。为了应对网络容量的持续指数增长，该项目包括考虑一种新颖、灵活、具有成本效益的光学技术，该技术引入了一种将大流量需求捆绑在一起的方法，因为它们通过网络路由。 该项目的成果将为教育注入前沿研究，并使信息在互联网中心之间更有效和更具成本效益地分发。该研究项目解决了多粒度灵活光网络设计和运营中的挑战性问题。这些挑战要求制定新的战略，以最大限度地利用宝贵的网络资源。将开发用于网络设计和资源配置的新算法，并将伴随着复杂的数学模型和性能量化的边界分析。本课题的具体研究目标是：1.探索多粒度FONs设计空间，评估性能和复杂性权衡，平衡性能与复杂性或成本。2.在多粒度FONs中设计提供带宽请求的算法。通过在数据中心间网络中联合分配计算和通信资源，设计可扩展且灵活的虚拟网络（VN）请求配置算法。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

There is an ever-increasing demand for cloud computing services, and large-scale datacenters are constantly evolving to meet this demand. As the need for data and data analytics grows, providers are turning to geo-distributed datacenters to provide customers very low latency access to information and computational capability. This results in high capacity, highly-varying inter-datacenter network traffic that must be reliably and cost-effectively accommodated by fiber optic networks. Recent advances in agile and flexible optical networking have made Flexible Optical Networks (FONs) a promising candidate for meeting these dynamic and heterogeneous connection demands. The goal of this project is to develop network design and provisioning strategies for inter-datacenter FONs that can support a wide range of data traffic flow. To address the continued exponential growth in network capacity, the project includes consideration of a novel, flexible, cost-effective optical technology, which introduces a way of bundling large traffic demands together as they get routed through the network. The results of the project will inject leading-edge research into education, and enable more efficient and cost-effective distribution of information between datacenters.The research project addresses challenging problems in the design and operation of multigranular flexible optical networks. The challenges demand the development of new strategies to maximize the utilization of precious network resources. Novel algorithms for network design and resource provisioning will be developed, and will be accompanied by sophisticated mathematical models and bound analysis for performance quantification. The specific research objectives of this project are to: 1. Explore the multigranular FONs design space and evaluate performance and complexity trade-offs, balancing performance against complexity or cost.2. Design algorithms for provisioning bandwidth requests in multigranular FONs.3. Design scalable and flexible algorithms on provisioning virtual network (VN) requests by jointly allocating compute and communication resources in inter-datacenter networks.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.