RepoSync: Combined action-based and data-based synchronization model in Named Data Network

Named Data Networking (NDN) is proposed to embrace the increasing demands of data-sharing and content dissemination. This paper proposes a distributed synchronization model, RepoSync, to provide accurate and efficient content synchronization. RepoSync adopts a combination of action-based and data-based synchronization, where actions are used to record the modifications of datasets, so as to instruct the sync process. Moreover, snapshot is introduced as data-based synchronization to provide the copy of dataset, handling the synchronization of large scale modifications. Simulations reveal that RepoSync can provide a promising performance of synchronization under various network conditions.