METHOD AND NODE FOR OBTAINING THE CONTENT AND CONTENT NETWORK

摘要

The invention provides a method and node for obtaining the content and a content network, belonging to the field of communications. The method includes: receiving a content request, the content request at least includes an identification for the requested content; determining whether the content corresponding to the identification can be obtained from local, if so, obtaining the content corresponding to the identification from local; otherwise, searching a name resolution system according to the identification to obtain the corresponding target node storing the identification, and obtaining the content corresponding to the identification from the target node; wherein the name resolution system includes a multi-level Distributed Hash Table (DHT) and global content resolution structure, the global content resolution structure supports name aggregation and longest matching search. The node includes a content proxy module and content obtaining module. The content network includes a node for obtaining the content and a transmission network. The invention establishes a Content-Oriented Network Architecture (CONA) platform by using the distributed scheme. By introducing the optimization policy, the efficiency of content distribution and security of network are improved, the investment costs of network is saved, and the network can adapt the fast increase of content more easily.