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:
Dec. 17, 2013
Filed:
Mar. 07, 2013
At&t Intellectual Property I, L.p., Atlanta, GA (US);
Dahai Xu, Livingston, NJ (US);
Robert Doverspike, Tinton Falls, NJ (US);
David Johnson, Madison, NJ (US);
Jennifer Rexford, Princeton, NJ (US);
Martin Suchara, Berkeley, CA (US);
AT&T Intellectual Property I, L.P., Atlanta, GA (US);
Abstract
A resilient load balancing method uses fixed paths and a fixed path-splitting strategy to enable ingress routers to efficiently reroute traffic after a failure. An off-line management system computes a set of fixed paths and a set of splitting ratios for routing demand from ingress routers to egress routers, with sufficient capacity to meet demands under each failure scenario. That data is then used by the ingress router to reroute demand after observing a failure.