NR: Resilient Internet Routing Framework

本项目的目标是研究Internet的一些路由漏洞，特别是边界网关协议(BGP)域中的漏洞，并提出一个弹性的路由框架。本研究开发了模型、度量和算法，并用真实的踪迹和场景验证了结果，以实现可靠的IBGP(内部BGP)反射拓扑设计、网络可用性评估和路由生存性。路由器和链路故障、人为维护中的错误以及资源可用性的变化导致不同路由器、链路和IGP(内部网关协议)路径上的可靠性差异。此外，IBGP目前采用集群和路由反射拓扑结构，其中不同的反射器和客户端配置在IBGP运行中具有不同的可靠性。因此，重要的是在更可靠的IGP路径上部署IBGP会话，并在可靠的路由器上放置反射器，以避免反射器故障和客户端隔离。在网络可用性方面，将资源可用性作为动态信息来处理和管理，以及开发一种能够处理全球互联网路由中的异构性的服务质量表示是至关重要的。该项目将开发如何在路线升级和链路修复期间有效管理资源可用性的方法。最后，本项目引入了一种新的可信性模型和轻量级认证，以提高路由器对不良路由通告和不良邻居行为的免疫力。

The objective of this Project is to study some of the Internet routing vulnerabilities, especially in the Border Gateway Protocol (BGP) domain, and propose a resilient routing framework. This research develops models, metrics and algorithms as well as validates the results with real traces and scenarios to achieve the reliable IBGP (Internal BGP) reflection topology design, network availability assessment, and routing survivability. Router and link failures, errors in human maintenance, and changes in resource availability lead to reliability variations on different routers, links and IGP (Interior Gateway Protocol) paths. Furthermore, IBGP is organized currently using clusters and route reflection topology, where different reflector and clients configurations have different reliability in IBGP operation. It is therefore important to deploy IBGP sessions on IGP paths that are more reliable, as well as place reflectors on reliable routers to avoid reflector failures and client isolations. In terms of network availability it is of crucial importance to address and manage resource availability as dynamic information, as well as to develop a QoS representation that can handle heterogeneity in global Internet routing. This project will develop methods of how to efficiently manage resource availability during route upgrading and link repairs. Finally, this project introduces a new trustworthiness model and light-weighted authentication to increase routers immunity to bad route advertising and misbehaving neighbors.