关键词: 命名数据网络, 分布式处理, 数据查询, 区分服务, 标签

Abstract: In Named Data Networking（NDN）, there is a great challenge for discovering and collecting the needful information from massive and distributed data, which needs to orchestrate complex routing and distributed processing components and adapt to network capabilities. Therefore, the paper proposes a differentiated service mechanism for NDN-based data query by following the design principle of the differentiated service in the current network. Inspired by the labeling idea of the MPLS protocol, the personalized and complex data query requirements are converted into multiple labels and their combination, which includes the interest forwarding labels and data returning labels. In the forwarding and response phase, the different processing actions of interest and response are determined by the individual labels and their combination. The NDN-based differentiated service system structure and the implementation process are proposed for personalized data query and accommodating network capabilities. Finally, the security of the labels and application scenarios of the differentiated service mechanism are discussed.

Key words: named data networking, distributed processing, data query, differentiated service, label