Abstract: Named data network (NDN) is a novel network architecture centered on content data. Existing routing strategies in NDN are inefficient due to neglecting the cache information in NDN nodes. This paper proposes a neighbor cache explore routing (NCE) strategy to fully use the cache information in the NDN routing strategy making, and designs the corresponding packet format and routing algorithm. The simulation results show that NCE strategy decreases the redundant traffics while improving the network performance, the effectiveness of NCE strategy is proved during the simulation.

Key words: named data network (NDN), routing strategy, neighbor cache explore routing strategy

摘要： 命名数据网络（named data network，NDN）是一种以数据为中心的新型网络体系结构。现有NDN网络路由策略未能充分利用路由结点缓存导致转发效率不高。为了在路由决策中充分利用NDN网络中的缓存，提出了一种邻居缓存路由（neighbor cache explore routing，NCE）策略，将路由结点缓存因素引入到路由决策中，并设计了相应的报文格式及路由选择算法。模拟实验结果表明，邻居缓存路由策略在减少网络冗余流量的同时提高了整体网络的性能，验证了NCE策略在NDN网络中的有效性。

关键词: 命名数据网络（NDN）, 路由策略, 邻居缓存路由策略