Control and Management for Next Generation Networks

当今互联网的结构造成了若干限制：它无法发挥无线通信等新兴技术的潜力;它不能提供任何可用性和可靠性保证;它本质上是不安全的;在当前互联网中，查明问题的根源极为困难;对等互联的经济激励措施不易管理和创造;并且为了跟上增长的需求，它需要越来越多的功率，并且随着时间的推移变得更加昂贵。最近，人们对互联网的白板设计产生了极大的兴趣，以解决这些问题。一个很有前途的想法是使用软件定义网络（SDN），这引起了学术界和工业界的广泛关注。切换到软件定义的网络带来了一些挑战，并创造了许多机会。集中式控制器的存在，具有整个网络的全局视图，以及创建新应用程序和协议的简单性，是我们可以用来提供新服务，协议和功能的奢侈品，这些在今天的互联网中非常困难。全局优化的流量工程、拥塞控制、访问控制和基于身份的安全性只是其中的几种可能性。另一方面，依赖集中控制带来了各种可扩展性，可靠性和潜在的安全挑战，我们需要解决。本项目的目的是（i）设计和实现新的工具，和方法，为下一代网络提供高度可扩展和可靠的控制和管理框架;（ii）为家庭和企业软件定义网络设计和开发高级网络管理框架;以及（iii）创建利用软件定义网络中可用的全局网络视图的全局优化协议。

The structure of today's Internet imposes several limitations: it cannot deliver the potential of emerging technologies such as wireless communications; it does not provide any guarantees on availability and reliability; it is intrinsically unsecure; identifying the root causes of problems is extremely difficult in the current Internet; economic incentives for peering are not easy to manage, and create; and in order to keep up with the growing demands, it needs more and more power, and becomes more costly over time. Recently, there has been a tremendous amount of interest in a clean slate design for the Internet to address these problems. One promising idea is to use Software-Defined Networks (SDNs) that has attracted a lot of attention both from academia and industry. Switching to software-defined networks poses several challenges and creates many opportunities. The existence of a centralized controller that has a global view of the entire network, and the simplicity of creating new applications and protocols are luxuries that we can use to provide new services, protocols, and functionalities that are prohibitively difficult in today's Internet. Globally optimized traffic engineering, congestion control, access control, and identity-based security are only a few of such possibilities. On the other hand, relying on a centralized control brings about various scalability, reliability, and potentially security challenges, that we need to address.This project aims at (i) design and implementation of new tools, and methods for a highly scalable and reliable control and management framework for next generation networks; (ii) design and development of a high level network management framework for home and enterprise software-defined networks; and (iii) creating globally optimized protocols that take advantage of the global network view available in software-defined networks.