Design of global hierarchical routing architecture on future IPv6 Internet

Due to the growth of Internet, the autonomous system (AS) is increasing rapidly. The large number of ASes brings the problem of routing to BGP. Instability of routing is increased, and the routing efficiency is lowered. In addition, the current Internet operation efficiency can not afford the growing rate; its backbone architecture might have congested traffic and create traffic bottlenecks. These are the important challenges which need to be overcome. A routing architecture to overcome the challenges is proposed. To avoid the routing problems due to the increase of ASes, a hierarchical structure is designed. To improve the operation efficiency, the gaterouter is suggested, which could largely decrease the hop number in the route to provide high-performance operation. In addition the global hierarchical routing architecture distributes the traffic of the original routing bottleneck of backbone-based Internet. Moreover it avoids the influence of single network device malfunction from disconnecting the Internet; the other transmitted traffic through the network does not share the local network bandwidth. Furthermore, the architecture closely combines with the IPv6 protocol standard as a hierarchically structural network; it provides the current and future network requirements with both scalability and efficiency