基于命名数据网络的路由转发策略研究

Research on the Routing and Forwarding Strategy Based on Named Data Network

随着互联网技术不断发展,提升内容获取,移动性支持和面向内容的安全能力等多种需求不断提出,以内容为中心的网络已被广泛研究,其中命名数据网络(NDN)是最典型的体系架构之一。转发机制是NDN的核心问题,讨论NDN体系架构下SmartFlooding、Best-Route和Flooding这三种转发策略的特点,通过仿真实验对比分析,得出三种转发策略在网络延时、拥塞控制及重传转发方面的性能差别,研究结论有助于帮助用户根据传输要求做转发决策。

With the continuous development of Internet technology,various requirements such as improving content acquisition,mobility support and content-oriented security capabilities are constantly being proposed.Content-centric networks have been widely studied,including Named Data Networking(NDN)is one of the most typical architectures.The forwarding mechanism is the core problem of NDN.This paper mainly discusses the characteristics of the three forwarding strategies of SmartFlooding,Best-Route and Flooding under the NDN architecture.Through simulation experiments,three forwarding strategies are obtained in network delay and congestion control.The performance difference in retransmission and forwarding,the research conclusions help to help users make forwarding decisions according to transmission requirements.