A Differentiated Service Based Content Distribution Method In Cdn

With the development of Internet applications, there are more and more problems about delay in the Internet. Content distribution network is an overlay network to distributing the content to the edge of Internet to reducing the user perceived delay. This paper focuses on the content distribution problem in the content delivery network. A differentiated service based content distribution algorithm was designed in this paper. Clustering algorithm was used to get pedigree chart of the edge server, and then ant algorithm was used to search for the optimal edge server based on the pedigree chart. The analysis shows that this algorithm combines the clustering method and ant colony algorithm, and it has a good distribution of results.