NR: Resilient Internet Routing Framework

本项目的目的是研究一些互联网路由漏洞，特别是在边界网关协议（BGP）领域，并提出一个弹性路由框架。本研究开发了模型、度量和算法，并通过真实轨迹和场景验证了结果，以实现可靠的IBGP （Internal 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、人为维护错误以及资源可用性变化导致不同路由器、链路和IGP（内部网关协议）路径的可靠性变化。此外，IBGP目前采用集群和路由反射拓扑结构，不同的反射器和客户端配置对IBGP运行的可靠性有不同的影响。因此，重要的是将IBGP会话部署在更可靠的IGP路径上，并将反射器放置在可靠的路由器上，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，以及开发能够处理全球Internet路由异构的QoS表示是至关重要的。该项目将开发如何在路线升级和链路维修期间有效管理资源可用性的方法。最后，本文引入了一种新的可信度模型和轻量级认证，以提高路由器对不良路由广告和行为不端的邻居的免疫力。

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.