【摘要】 针对命名数据网络在网络规模增大时存在FIB的表项数目庞大、节点的负载(内存等指标)和开销过大等路由可扩展性问题,提出一种基于名称分类的路由可扩展性改进方案。通过将数据名称根据流行度分为流行(全局)与不流行(非全局),以及生产者主动发布两种不同形式的名称公告包,使得不同流行度的兴趣包分散处理。引入非全局路由名称集中点,分担全局名称集中点的压力。实验结果表明,该方案在中间路由器处理的兴趣包数目、兴趣包的处理时延上存在优化效果,提升了网络的路由可扩展性。更多还原

【Abstract】 An improved routing scalability scheme based on name classification was proposed to solve the problem of routing scalability such as the huge number of FIB entries,the load of nodes(memory and other indicators)and the excessive cost of the named data networking when the network scale increases.Data names were divided into popular(global)and unpopular(nonglobal)according to popularity,and two different forms of name announcement packets were published by producers proactively,so that interest packets of different popularity were distributed.Non-global routing name concentration points were introduced to share the pressure of global name concentration points.Simulation results show that an optimized effect of the scheme is presented on the number of interest packets processed by the intermediate router and the processing delay of the interest packets,so that the routing scalability of the network is improved.更多还原