System and method for dynamically adapting network delivery modes of content

摘要

A content distribution network includes a first server in communication with an anycast server that provides content via a unicast signal, and with a multicast server that provides the content via a multicast signal. The first server is configured to receive a list of source addresses associated with the content, and to provide a metadata file including an anycast Internet protocol address of the anycast server from the list of source addresses as an Internet protocol address of the content in response to a first request for the content. When the number of client devices requesting the content exceeds a first threshold, the first server receives an updated list of sources including a multicast Internet protocol address of a multicast server, and provides the multicast Internet protocol address of the multicast server as the Internet protocol address of the content in the metadata file.

主权项

1. A content distribution network comprising:
a first server in communication with an anycast server that provides content via a unicast signal, and in communication with a multicast server that provides the content via a multicast signal, wherein the first server executes instructions to perform operations, the operations comprising:
receiving a list of source addresses associated with the content;providing a metadata file including an anycast internet protocol address of the anycast server from the list of source addresses as an internet protocol address of the content in response to a first request for the content;monitoring a number of client devices requesting the content and a rate of requests for the content;when the number of client devices requesting the content exceeds a first threshold; receiving an updated list of sources including a multicast internet protocol address of a multicast server, providing the anycast internet protocol address of the anycast server as the internet protocol address of a first set of blocks of the content in the metadata file, and providing the multicast internet protocol address of the multicast server as the internet protocol address of a remaining set of blocks of the content in the metadata file;receiving a request for an updated metadata file when a time-to-live period of the metadata file has expired; andproviding the updated metadata file including the updated list of sources after the time-to-live period of the metadata file has expired.