Content delivery network referral
US9756124B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2016 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Feb 1, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/63
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In general, techniques are described for managing content request referrals by keying content requests to a composite key data structure that maps end-user address prefixes and content identifiers to content delivery network servers of downstream CDNs. In one example, a CDN exchange includes a communication module to receive first network prefixes and first content identifiers from a first secondary content delivery network and to receive second network prefixes and second content identifiers from a second secondary content delivery network. A request router of the CDN exchange redirects the content request to the first secondary content delivery network or to the second secondary content delivery network according to a network address of the end user device and a content identifier for the content request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.