Patent ID: 8924508

Claim:
A method comprising: receiving, with a content delivery network interconnection (CDNI) device of a content serving entity, a prefix advertisement that indicates a content delivery network that provides content delivery reachability to a network address prefix, wherein the prefix advertisement includes an on-net attribute field that indicates the content delivery network is on-net for the network address prefix and is administered by a provider that also administers an autonomous system that provides network reachability to the network address prefix; receiving, with the CDNI device, a content request that includes a request for content and specifies a network address of an end user device to receive the content, wherein the network address is within a range defined by the network address prefix; determining, with the CDNI device and based on the on-net attribute field of the prefix advertisement, the content delivery network is on-net for the network address of the end user device; with the CDNI device and in response to determining the content delivery network is on-net for the network address of the end user device, selecting the content delivery network to serve the content request; and redirecting the content request from the CDNI device to the content delivery network.