A data storage method for differentiated notification based on node interface storage information in ndn/ccn

Abstract

The invention relates to a data storage method based on a node interface storage information differentiation announcement in NDN / CCN (Named Data Networking / Content Centric Networking), and belongs to the technical field of internet communication. According to the method, data are stored on a node which is most beneficial to a user request by utilizing a request frequency value and a request frequency standard deviation of the data in different time periods; meanwhile, in the method, the node periodically annunciates stored data information to neighbor nodes, so that the hit rate of a data request in a network is improved, data requests of a user to a server side are reduced, and then the access pressure of a data server is lightened; because the request situations of the same data at different nodes are different, if the data information stored on the node is annunciated to all neighbor nodes, the announcement information of the data are not targeted; meanwhile, bloated information is caused; according to a strategy, the data information stored on the node is annunciated selectively aiming at different interfaces, so that the network performance is improved, and meanwhile, the consumption of network resources is reduced.

Description

technical field [0001] The invention belongs to the technical field of Internet communication, and relates to a data storage method for storing information differentiated announcements based on node interfaces in NDN / CCN. Background technique [0002] With the development of the Internet, the traditional network architecture based on TCP / IP has developed rapidly. However, due to the different historical environment in which the traditional network was originally designed, the functions it has are also quite different from the needs of current users for the Internet. With the development of society, the network has been widely used, but also exposed more and more problems. This has attracted the attention of scholars and experts to the updated network architecture. The new generation of network architecture is currently divided into two groups, one is the "reformed group", these experts and scholars believe that the new generation of network architecture should be improved ...

AI Technical Summary

Problems solved by technology

However, the information notification method in MPC is poorly targeted and cannot achieve accurate data information notification

However, the data storage strategy proposed by Cui X D et al., that is, where the data is stored is too complicated, and it cannot reflect the request status of the data on the network nodes in real time.

Since different network interfaces are connected to different links, that is, the users served by different network nodes will be quite different, and the requests for data between users are inherently different. The request status of the interface will be quite different. Therefore, when the node chooses to notify the neighbor nodes, it should select the notification information for the specific interface, instead of selecting data from the perspective of the node, so that the interface is treated equally. Cannot really achieve effective data storage information notification

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