公开(公告)号：US20150381764A1

公开(公告)日：2015-12-31

申请号：US14848898

申请日：2015-09-09

Applicant: AT&T INTELLECTUAL PROPERTY I.L.P.

Inventor： Han Q. Nguyen ,  Sunil Maloo ,  Douglas M. Nortz

IPC: H04L29/08 ,  H04L12/801 ,  H04L12/26

CPC classification number: H04L67/322 ,  H04L12/18 ,  H04L43/0882 ,  H04L47/15 ,  H04L47/29 ,  H04L61/2069 ,  H04L61/609 ,  H04N21/2408 ,  H04N21/26291 ,  H04N21/632 ,  H04N21/6375 ,  H04N21/6402 ,  H04N21/6405 ,  H04N21/6408 ,  H04N21/64322 ,  H04N21/84

Abstract: 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.

Abstract translation: 内容分发网络包括与通过单播信号提供内容的任播服务器通信的第一服务器，以及经由多播信号提供内容的多播服务器。 第一服务器被配置为接收与内容相关联的源地址的列表，并且从源地址列表中提供包括任播服务器的任播网络协议地址的元数据文件作为响应于内容的内容的因特网协议地址 第一个请求的内容。 当请求内容的客户端设备的数量超过第一阈值时，第一服务器接收到包括多播服务器的组播互联网协议地址的源的更新列表，并且将组播服务器的组播互联网协议地址作为互联网协议地址 的元数据文件中的内容。