Resource invalidation in a content delivery network
US8060613B2 · kind B2 · utility
121Cited by
293References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Feb 4, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1012
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A repeater server in a content delivery network (CDN) maintains a list of resources that are no longer valid. When the server gets a request for a resource, it checks whether that resource is on the list, and, if so, it replicates the resource from a content provider's content source such as an origin server. Otherwise the repeater server tries to serve a copy of the requested resource or to obtain a copy from another location in the CDN.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.