Patent ID: 8909736
Filing Date: 2014-12-09
Classification: H04L,H04N

Abstract:
1. A method comprising: generating, by a content delivery network exchange, an aggregate content delivery network referral table from first and second network address prefixes and first and second content identifiers, wherein one or more entries of the aggregate content delivery network referral table each comprises a composite key of a network address prefix from the first and second network address prefixes and a content identifier from the first and second content identifiers, wherein the first network address prefixes and first content identifiers refer to a first secondary content delivery network for a primary content delivery network, and wherein the second network address prefixes and second content identifiers refer to a second secondary content delivery network for the primary content delivery network; sending, from the content delivery network exchange to the primary content delivery network, the aggregate content delivery network referral table to cause the primary content delivery network to direct content requests that match any of the entries of the aggregate content delivery network referral table to the content delivery network exchange; receiving, by the content delivery network exchange from the primary content delivery network, a content request originated by an end user device; redirecting, by the content delivery network exchange, the content request to the first secondary content delivery network when a network address of the end user device matches one of the first network address prefixes and a content identifier for the content request matches one of the first content identifiers; and redirecting, by the content delivery network exchange, the content request to the second secondary content delivery network when the network address of the end user device matches one of the second network address prefixes and the content identifier for the content request matches one of the second content identifiers.