转发引擎是路由器最为关键的功能部件，服务可定义的转发模型是路由器功能可扩展的核心内容，也是互联网提供可扩展服务的基石。然而，现有路由器转发引擎却相对封闭，难以灵活扩展。例如，分布式路由器中每块线卡都配置有独享的固化转发引擎，难以实施转发资源共享或新型转发服务的部署。而且，封闭的转发结构还极大地影响着路由器绿色节能机制的实施。本项目围绕服务可定义的共享转发模型和新型绿色节能机制展开研究。主要研究工作包括：1）研究新型转发服务的描述方法及实现机制，构建服务可定义的转发模型；2）基于转发资源层次结构，设计共享、可控的一体化转发资源管理平台；3）以宿主转发单元服务为基础，研究转发表的分解存储机制；4）利用网络流量预测模型，研究基于共享转发单元结构的转发引擎绿色节能机制；5）研究面向新型转发模型及节能机制的实验模型及验证环境。

Forwarding Engine (FE) is the most important function component of router, while customized FE model is the core of router scalability and the basis of Internet service scalability. However, FE in existing router is too closed to scale flexibly. For example, every single line-card in distributed routing system owns an exclusive and fixed FE, which compromises forwarding resource sharing or novel forwarding service deployment. Besides, such closed structure also greatly affects the implementation of energy-saving mechanism. Focused on shared FE model with customizable service and novel energy-saving mechanism, this project mainly researches: 1) the description method and implementation mechanism of novel forwarding services as well as how to build a forwarding model with customizable service; 2) how to design a shared, controllable and integrated forwarding resource platform based on hierarchical resources; 3) the decomposed storage mechanism of forwarding-table based on host forwarding unit service; 4) FE energy-saving mechanism based on shared forwarding unit with Internet traffic forecast model; 5) experimental model and verification environment towards novel FE and energy-saving mechanism.