Towards an overlay network architecture

自组织覆盖网络已经成为大规模部署网络服务的一个强大的新范例，但这项技术的全部潜力仍然在很大程度上未被开发。这个项目将推进最先进的自组织虚拟覆盖网络，并表明自组织网络的设计原则可以演变 为未来通信网络和服务的新协议架构绘制蓝图。我们将为完全基于自组织覆盖网络原理的网络架构开发算法和协议。使用分析方法，模拟和测试平台实现的测量，我们将提供新的见解的能力和自组织网络的局限性。 在这个项目中解决的一个关键挑战是算法和协议的发展，可以保持一个连接的覆盖图中存在的多个异构基板网络。为了表明，自组织网络可以提供高延迟和吞吐量的性能在较低层的系统架构，我们提出了一个“覆盖交换机”的发展与硬件支持自组织覆盖网络协议。 我们将探索使覆盖网络能够扩展到数百万个节点的算法。 此外，我们将设计和评估算法的覆盖网络，从而有效地利用网络资源。

Self-organizing overlay networks have emerged as a powerful new paradigm for deploying network services on a large scale, yet the full potential of this technology remains largely unexplored. This project will advance the state-of-the-art of self-organizing virtual overlay networks and show that design principles for self-organizing networks can be evolved into a blueprint for a new protocol architecture for future communication networks and services. We will develop algorithms and protocols for a network architecture that is entirely based on the principles of self-organizing overlay networks. Using analytical methods, simulation, and measurements of testbed implementations we will provide new insights into the capabilities and limitations of self-organizing networks. A key challenge addressed in this project is the development of algorithms and protocols that can maintain a connected overlay graph in the presence of multiple heterogeneous substrate networks. To show that self-organizing networks can deliver high delay and throughput performance at the lower layers of the system architecture, we propose the development of an `overlay switch' with hardware support for self-organizing overlay network protocols. We will explore algorithms that enable overlay networks to scale to millions of nodes. In addition, we will devise and evaluate algorithms for overlay networks that result in an efficient use of network resources.