CAREER: Decoupling Policy from Mechanism in Internet Routing

这项研究是关于将转发策略与互联网中的路由发现分离，允许用户从可能的许多AS间路径中进行选择，并使互联网服务提供商能够更有效地管理其流量的端到端行为。研究人员正在探索将路径请求、负责的资源主体和授权代理捆绑在一起的所谓网络能力的概念。网络功能构成了Platypus的基础，这是一种松散源路由协议，由多个互联网服务提供商授权构建可独立验证和动态核算的备用AS间路由。这项拟议的研究有可能显著提高互联网的性能、可靠性和健壮性。网络功能消除了在互联网中部署复杂的路由策略的许多障碍，使网络运营商能够明确授权第三方以负责任、安全和高效的方式影响网络的路由决策。该项目的主要成果将是实施Platypus，并展示其在表达和仲裁相互竞争的网络服务提供商路由政策方面的有效性。特别是，这项研究将表明，功能既可以表示现有的ISP路由策略，也可以表示BGP不支持的更复杂的附加策略。Platypus的实施将免费提供，并部署在PlanetLab和Internet-2试验台上。

This research is on separating forwarding policy from route discovery in the Internet, allowing users to select among possibly many inter-AS paths available to them and enabling ISPs to more effectively manage the end-to-end behavior of their traffic. The researcher is exploring the concept of the so-called network capability that binds together a path request, an accountable resource principal, and an authorizing agent. Network capabilities form the basis of Platypus, a loose source routing protocol that composes authorizations from multiple ISPs to construct alternative inter-AS routes that can be independently validated and accounted for on the fly. The proposed research has the potential to significantly improve the performance, reliability, and robustness of the Internet. Network capabilities remove many of the obstacles to deploying sophisticated routing policies in the Internet, enabling network operators to explicitly authorize third parties to affect the network's routing decisions in an accountable, secure, and efficient fashion. The major result of this project will be an implementation of Platypus and a demonstration of its effectiveness in expressing and arbitrating amongst competing ISP routing policies. In particular, this research will show that capabilities can express both existing ISP routing policies and additional, more complex policies not supported by BGP. The Platypus implementation will be made freely available and deployed on the PlanetLab and Internet-2 test-beds.