Delivery of content

摘要

Systems and methods are provided for a pull model for delivery of data such as content metadata among interconnected content delivery networks (CDNi), allowing for accurate metadata information in appropriate edge servers in a large CDNi system. When a request for an asset in a CDN (CDN A) is to be served by another, interconnected CDN (CDN B), a link to the location where the metadata is stored within CDN A can be provided along with the request for CDN B to serve the content to the user. The link can be passed to the appropriate edge device in CDN B, which can retrieve the metadata to set up and support the content session. The encrypted information can also be passed recursively by CDN B to other CDNs with which it is interconnected.

主权项

1. A method comprising:
receiving from a client device, by a first content delivery network (CDN), a first request for a content item, wherein the first request is received over a data network; determining, by a computing device associated with the first CDN, to forward the first request for the content item to a second CDN different from the first CDN; sending a query from the first CDN to the second CDN to obtain a location associated with the content item in the second CDN; after receiving a query response from the second CDN, sending the location of the content item in the second CDN to the client device; receiving at the first CDN, from the second CDN, a request for metadata associated with the content item; and sending the metadata associated with the content item to the second CDN.