Network virtualization algorithm engine

互联网最初是作为创新的温床。它的主要设计目标之一是允许研究人员尝试新的和颠覆性的想法。但是，在此过程中，它惊人的成功和受欢迎程度使得这个非常重要的目标被边缘化了。由于多个利益相关者的存在，往往有相互冲突的目标，对现有互联网的重大改变几乎是不可能的。网络虚拟化最近被提出作为防止这种僵化的一种手段。其主要思想是在单个物理网络上容纳多个逻辑（虚拟）网络。虚拟网络的所有者可以自由地部署任何通信协议或服务。通过允许多个异构网络在共享的物理网络上共存，网络虚拟化的目标是提供灵活性、多样性、安全性和可管理性。然而，这是有代价的。需要解决几个新的挑战。为此目的，最近的研究充其量只能被描述为试图修复当前Internet的一些现有的、大多数是互不相关的问题，而不是协调一致地构建一个完整的网络虚拟化环境（NVE）。在这个项目中，我们重点关注对NVE实例化和运行至关重要的三个方面，i)可扩展性，ii)故障恢复能力和iii)多层生产网络中的虚拟网络管理。与我们的工业伙伴华为合作，在这些研究途径上取得进展，可能对未来互联网的设计原则和管理范式产生持久的影响。

The Internet started out as a breeding ground for innovation. One of its main design goals was to allow researchers to try out new and disruptive ideas. But, along the way, its amazing success and popularity has caused this very important objective to be sidelined. Due to the existence of multiple stakeholders, often with conflicting goals, major alterations to the existing Internet are next to impossible. Network virtualization has recently been propounded as a means to fend off this ossification. The main idea is to accommodate multiple logical (virtual) networks on a single physical network. The owner of a virtual network is free to deploy any communication protocol or service. By allowing multiple heterogeneous networks to cohabit on a shared physical one, the goal of network virtualization is to provide flexibility, diversity, security and manageability. However, this comes at a cost. Several new challenges need to be addressed. Recent research, to this end, can at best be described as attempts to fix some existing, and mostly disjoint, problems of the current Internet, rather than a coordinated effort to build a complete Network Virtualization Environment (NVE). In this project, we focus on three aspects that are of central importance to the instantiation and operation of an NVE, i) scalability, ii) failure resilience and iii) virtual networks management in a multi-layer production network. Advances in these research avenues in collaboration with our industrial partner Huawei could have a lasting impact on the design principles and management paradigms of the future Internet.