Request routing
US8156243B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2008 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Jun 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1036
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system, method and computer-readable medium for request routing. A client request processing a resource identifier for requested content transmits a first DNS query to a content delivery network service provider. The content delivery network service provider transmits an alternative resource identifier in response to the client computing device DNS query. The client computing device then issues a second DNS query to the same content delivery network service provider. The content delivery network service provider can then either resolve the second DNS query with an IP address of a cache component or transmit another alternative resource identifier that will resolve to the content delivery network service provider. The process can repeat with the content delivery network service provider's network until a DNS server resolves a DNS query from the client computing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.