Abstract: A method for providing media contents for a plurality of addressable nodes in a data network, said media contents comprising at least one media file. For each media file to be provided, a decentralized structure managed via a first node is formed so the respective media file is divided into a plurality of sections and an identity value is allocated to the sections, the first node(s) respectively responsible for a sub-interval and for a sub-quantity of sections from the respective media file. In a respective first node, a number of second nodes and corresponding addresses are deposited, the second node(s) specified for providing said sections according to said sub-interval, for which the respective first node is responsible. A receiving node retrieves the addresses of second nodes having sections of said media file by a request to said first node, and downloads the sections from said retrieved addressed second nodes.

Abstract: A Network capable entity, having an estimator for estimating a superpeer number of required superpeers in a hierarchical peer-to-peer network, the number depending on an actual network situation, and for estimating an existing superpeer number of actually existing superpeers in the hierarchical peer-to-peer network, and a controller for promoting a different networking capable entity to become a superpeer in case the superpeer number is greater than the existing superpeer number.