高性能路由器中的并行包转发机制研究  

Parallel Packet Forwarding for High End Routers

作　　者：李胜磊[1] 张德运[1] 刘刚[1] 

机构地区：[1]西安交通大学网络研究所,西安710049

出　　处：《计算机科学》2003年第2期72-74,共3页Computer Science

基　　金：陕西省重大技术创新项目基金

摘　　要：1 引言 Internet的快速发展对网络带宽的要求越来越高,由于光纤技术的进步,尤其是DWDM技术在骨干网络上的应用,光纤能够承载的容量也越来越大。然而,根据摩尔定律,计算能力的增加是每18个月增加一倍,因此,传统的路由器就逐渐成为网络的瓶颈。而且,多媒体以及实时通信技术对服务质量也提出了严格的要求,这又增加了路由器的开销。总之。The invention and evolution of the Dense Wavelength Division Multiplexing (DWDM) technology have brought a breakthrough to high-speed networks,and it has put a lot of pressure on research in the area of IP routers. Besides,with up-coming Quality of Service requirements raised by a wide range of communication intensive,the next-generation IP routers should be QoS-capable. In this paper,we propose a architecture called the Parallel QoS-capable IP Router (PQIR). We address one key design issue in our architecture - the distribution of IP packets to multiple independent routing agents so that the workload at routing agents is balanced and the packet ordering is preserved. We introduce the Enhanced Hash-based Distributing Scheme (EHDS)as the solution. Simulations are carried out to study the effectiveness of EHDS. The results show that EHDS does meet our design goals very well.

关 键 词：高性能路由器 并行包转发机制 交换机 集群技术 INTERNET 

分 类 号：TN915.05[电子电信—通信与信息系统] TP393.4[电子电信—信息与通信工程]