Nets-NBD: Intelligent routing control systems: panacea or imminent disaster?

最近，网络行业和互联网研究界都对智能路由控制(IRC)系统表现出了浓厚的兴趣。IRC系统有两种类型：路由覆盖和智能多宿主。首先，IRC系统执行负载敏感的路由，允许基于测量的候选路径的性能动态改变路径。其次，使用IRC系统，可以通过不同路径将不同类别的流量路由到同一目的地。第三，IRC系统为边缘网络提供了选择通向公共目的地的路径的灵活性。本项目从关键的角度研究IRC系统，既考察了它们改善网络路由和应用性能的潜力，也考察了此类系统可能以不稳定和冲突的路由激励的形式引入互联网的风险。该项目的主要研究任务是：研究路由覆盖和智能多宿主，比较两种体系结构的优缺点；确定IRC系统设计和运行中的关键问题；设计IRC系统稳定和高效运行的算法和机制；通过在PlanetLab和其他测试平台上的真实模拟和大范围实验来评估先前的结果。该项目的最终结果将是一套连贯的IRC系统设计和算法，兼顾性能和稳定性，不仅关注个体参与者的激励，而且关注整个互联网的整体效用。该项目可以对IRC系统的设计和部署产生重大影响。该项目的成果将通过研究出版物以及与IRC系统制造商和网络运营商的直接沟通来传播。

Recently, both the networking industry and Internet research communities have shown significant interest in ``Intelligent Routing Control'' (IRC) systems. There are two types of IRC systems: routing overlays and intelligent multihoming. First, IRC systems perform load-sensitive routing, allowing dynamic path changes based on the measured performance of candidate paths. Second, with IRC systems it becomes possible to route different classes of traffic to the same destination through different paths. Third, IRC systems give edge networks the flexibility to choose their path to common destinations.This project investigates IRC systems from a critical perspective, examining both their potential to improve network routing and application performance, but also the risk that such systems may introduce in the Internet in the form of instability and conflicting routing incentives. The project's main research tasks are to: investigate both routing overlays and intelligent multihoming and compare the pros and cons of the two architectures; identify the key issues in the design and operation of IRC systems; design algorithms and mechanisms for the stable and efficient operation of IRC Systems; evaluate the previous results through realistic simulations and wide-scale experiments over Planetlab and other testbeds.The final outcome of this project will be a coherent set of designs and algorithms for IRC systems, considering both performance and stability, and focusing not only on the incentives of individual players but also on the global utility of the Internet as a whole. The project can have a significant impact on the design and deployment of IRC systems. The project's results will be disseminated through research publications, and through direct communication with manufacturers of IRC systems and network operators.