Internet域间路由系统：问题与挑战

作为Internet的核心基础设施，基于BGP协议的域问路由系统目前在扩展性、端到端性能、安全性与可信性等方面存在问题。由于部署的厂域性、AS的自治性以及ISP之间交互的复杂性、域间路由行为的动态性，使得人们对域间路由系统的结构和行为规律尚未充分理解，缺乏全面有效的解决方案，大规模的系统的网络实验难以开展。理想的域问路由系统及其支撑的Internet在性能上应具有快速恢复和全局优化的能力，在安全上应具有自主防范和协同控制能力，在运营上应具有自主配置和协同管理能力。

Internet Inter-Domain Routing System: Issues and Challenges

As the critical infrastructure of the Internet, the Inter-Domain Routing （IDR） system based on Border Gateway Protocol （BGP） is suffering from problems in scalability, end-to-end performance, security and trustability. The IDR routing behaviors and structures have not been understood thoroughly due to its wide deployment, autonomy of Autonomous System （AS）, complexity of interactions between Internet Service Providers （ISPs） and dynamics of running behaviors. A comprehensive and efficient solution is not available, and it is hard to conduct large scale network experiments to deal with the intricate IDR issues. An ideal IDR and the Internet based on it are expected to have fast recovery and global optimization ability in performance, self-defense and collaborative control power in security, and self-configuration and cooperative management in operations.