Abstract: The method is for the transfer of data of a message subdivided in fragments from a first intermediary electronic processing unit (43) to a second intermediary electronic processing unit (45); before the transfer, the first unit (43) receives the data encapsulated in the payload of data packets of the TCP type from a sender electronic processing unit (41) and decapsulates them; after the transfer, the second unit (45) encapsulates data in the payload of data packets of the TCP type and transmits them to a recipient electronic processing unit (47); the transfer takes place by means of data packets of the UDP type; the first unit (43) also inserts in the payload (32) of UDP packets; a first data field (C1) containing an identifier of a connection between the sender unit (41) and the recipient unit (47), a second data field (C2) containing an identifier of the message to be transferred, and a third data field (C3) containing a number that identifies the position of a fragment within the message to be transferred.

Abstract: An edge server of a content delivery network includes an electronic communication unit adapted to be connected to a telematic network and a processing electronic unit adapted to process data packages received and to be transmitted by the electronic communication unit; the processing electronic unit having a first storage sub-unit suitable adapted to store contents and a second storage sub-unit adapted to store configuration information related to a home point of presence of the edge server; the electronic processing unit is programmed to deal with content requests, so that in response to a request for a content if it is, in whole or in part, locally possessed, sends the content and otherwise determines a server address by performing a calculation on a name of the content taking into account configuration information, and causes a request related to the content to be sent to the server address.