08156243 is referenced by 110 patents and cites 261 patents.

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.

Title
Request routing
Application Number
12/59997
Publication Number
8156243 (B2)
Application Date
March 31, 2008
Publication Date
April 10, 2012
Inventor
Swaminathan Sivasubramanian
Seattle
WA, US
Elmore Eugene Pope
Sammamish
WA, US
Bradley E Marshall
Bainbridge Island
WA, US
John Cormie
Seattle
WA, US
David R Richardson
Seattle
WA, US
Agent
Knobbe Martens Olson & Bear
Assignee
Amazon Technologies
NV, US
IPC
G06F 15/173
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