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:
May. 30, 2017
Filed:
Oct. 02, 2015
At&t Intellectual Property I, L.p., Atlanta, GA (US);
Mario A. Santoro, Colts Neck, NJ (US);
Herani Brotman, Colts Neck, NJ (US);
Alan L. Glasser, Manalapan, NJ (US);
James Miros, Little Silver, NJ (US);
Oliver Spatscheck, Randolph, NJ (US);
Jacobus E. Van der Merwe, Salt Lake City, UT (US);
AT&T INTELLECTUAL PROPERTY I, L.P., Atlanta, GA (US);
Abstract
A system including first and second servers, a domain server, and a route controller is disclosed. The first and second servers are configured to respond to an anycast address and to first and second unicast addresses respectively. The route controller is configured to determine whether the first cache server is non-overloaded, overloaded, or offline, and may instruct the domain name server to provide to provide the second unicast address when the status is overloaded or offline. Routing of the anycast address may be modified so as to direct a content request sent to the anycast address to the second cache server when the status is offline. The domain name server may receive a request for a cache server address and provide the anycast address to the requestor when the status is non-overloaded, and provide the second unicast address when the status is offline or overloaded.