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:
Feb. 01, 2011
Filed:
Aug. 14, 2007
Kenneth R. Owens, St. Louis, MO (US);
Srinivas V. Makam, Naperville, IL (US);
Changcheng Huang, Lisle, IL (US);
Vishal Sharma, San Jose, CA (US);
Kenneth R. Owens, St. Louis, MO (US);
Srinivas V. Makam, Naperville, IL (US);
Changcheng Huang, Lisle, IL (US);
Vishal Sharma, San Jose, CA (US);
Tellabs Operations, Inc., Naperville, IL (US);
Abstract
Recovery time upon the failure of a link or switching system in an asynchronous data network can be minimized if downstream data switches provide upstream messages indicating to upstream switching system that the downstream traffic arrived in tact and was properly handled. Upon this loss or failure of the upstream status message to an upstream switching system, an upstream switching system can reroute data traffic around a failed link or failed switch with a minimal amount of lost data. The upstream status message is conveyed from a downstream switching system to an upstream switching system via a reverse notification tree data pathway.