NeTS: EAGER: Software-Defined Networking in Hybrid Networked Environments

互联网惊人的成功和增长也可能导致其逐渐“僵化”，阻碍其发展和适应新服务和应用的能力。为了解决这一问题，软件定义网络(SDN)被提出作为一种对网络进行编程的方法，使部署新协议和新应用以及调整网络性能变得更容易。到目前为止，SDN技术在很大程度上是针对基于基础设施的网络。然而，随着自组织、无基础设施的网络变得更加普遍和无处不在，它们将成为未来互联网不可或缺的一部分，使各种应用成为可能，如车载通信、社区服务、医疗服务、应急响应、环境监测等。受这种未来互联网愿景的激励，该项目将开发混合SDN，或H-SDN，这将使SDN在未来的互联网中能够实现SDN，该互联网由基于基础设施的网络和非基础设施网络组成。为了实现这一目标，目前的SDN方法，如OpenFlow，本质上是集中化的，将得到增强，以便它们可以在基础设施较少的分散网络环境中运行。该项目的主要成果是基本的H-SDN原型。随后，我们计划(1)继续发展H-SDN和(2)利用H-SDN在混合网络中开发高效和灵活的内容交付服务。Broader影响：通过发展H-SDN，这项研究可能会产生相当广泛的影响，因为它将使高效的内容交付在未来的互联网。随着内容和计算转移到云端，高效的内容交付对内容和服务提供商以及终端用户都至关重要。该项目对该项目也有很强的教育作用，包括两个伙伴机构之间初级研究人员和研究生的交流和共同监督。

The Internet's astounding success and growth can also lead to its gradual `ossification', hampering its ability to evolve and accommodate new services and applications. To address this problem, Software-Defined Networking (SDN) has been proposed as a way to 'program' networks and make it easier to deploy new protocols and new applications, as well as tune network performance. To-date, SDN techniques have, for the most part, targeted infrastructure-based networks. However, as self-organizing, infrastructure-less networks become more prevalent and ubiquitous, they will become integral parts of the Internets of the future, enabling a variety of applications such as vehicular communications, community services, healthcare delivery, emergency response, environmental monitoring, to name a few.Motivated by this vision of the internet of the future, this project will develop Hybrid-SDN, or H-SDN, which will enable SDN in future internets consisting of infrastructure-based and infrastructure-less networks. To accomplish this goal, current SDN approaches, e.g., OpenFlow, which are inherently centralized, will be augmented so that they can operate in infrastructure-less, decentralized networked environments. The main deliverable of this project is the basic H-SDN prototype. Subsequently, we plan to (1) continue the H-SDN development and (2) develop efficient and flexible content delivery services in hybrid networks using H-SDN.Broader Impact: By developing H-SDN, this research will likely have considerable broader impact as it will enable efficient content delivery in future internets. With content and computation moving to the cloud, efficient content delivery will be critical for content-- and service providers, as well as end users. This project also has a strong education component to this project including an exchange and co-supervision of junior researchers and graduate students between the two partner institutions.