07581009 is referenced by 114 patents and cites 146 patents.

A global server load balancing (GSLB) switch serves as a proxy to an authoritative DNS communicates with numerous site switches which are coupled to host servers serving specific applications. The GSLB switch receives from site switches operational information regarding host servers within the site switches neighborhood. When a client program requests a resolution of a host name, the GSLB switch, acting as a proxy of an authoritative DNS, returns one or more ordered IP addresses for the host name. The IP addresses are ordered using metrics that include the information collected from the site switches. In one instance, the GSLB switch places the address that is deemed “best” at the top of the list.

Title
Global server load balancing
Application Number
11/741480
Publication Number
7581009 (B1)
Application Date
April 27, 2007
Publication Date
August 25, 2009
Inventor
Rajkumar Ramniranjan Jalan
Saratoga
CA, US
David Chun Ying Cheung
Cupertino
CA, US
Ivy Pei Shan Hsu
Pleasanton
CA, US
Agent
Townsend and Townsend and Crew
Assignee
Foundry Networks
CA, US
IPC
G06F 15/173
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