| 摘要 |
A network ( 10 ), such as a computer network, is disclosed. The network ( 10 ) has a plurality of nodes ( 20; 120 ) and includes a first node ( 30, 130 ) for storing pieces of a digital object and having a storage ( 40, 50; 140, 150 ). A plurality of connections are present between the first node ( 30, 130 ) and the plurality of nodes ( 20; 120 ). The first node ( 30, 130 ) has a requester for requesting one or more pieces of the digital object, a transmitter for transferring one or more pieces of the digital object to at least one further node among the plurality of nodes ( 20; 120 ), a receiver for receiving content availability messages from at least some of the plurality of nodes, and a sender for sending a limited content availability message to at least one further node ( 20; 120 ) among the plurality of nodes ( 20, 120 ). The limited content availability message indicates a subset but not all of the pieces of the digital object available through the first node ( 30; 130 ).
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