The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2008
Filed:
Sep. 26, 2000
Ivy Pei-shan Hsu, Danville, CA (US);
David Chun Ying Cheung, San Jose, CA (US);
Rajkumar Ramniranjan Jalan, Fremont, CA (US);
Ivy Pei-Shan Hsu, Danville, CA (US);
David Chun Ying Cheung, San Jose, CA (US);
Rajkumar Ramniranjan Jalan, Fremont, CA (US);
Foundry Networks, Inc., Santa Clara, CA (US);
Abstract
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.