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:
Mar. 03, 2009
Filed:
Apr. 02, 2004
Zbigniew M. Dziong, Atlantic Highlands, NJ (US);
Muhammad A. Qureshi, Irvine, CA (US);
Yung-terng Wang, Marlboro, NJ (US);
Zbigniew M. Dziong, Atlantic Highlands, NJ (US);
Muhammad A. Qureshi, Irvine, CA (US);
Yung-Terng Wang, Marlboro, NJ (US);
Alcatel-Lucent USA Inc., Murray Hill, NJ (US);
Abstract
A protected communication network utilizes a link-based recovery strategy that includes methods for calculating and distributing link-protection parameters and calculating primary and link-detour paths based on these parameters. These link-protection parameters support the computation of more-optimal link-detour paths and a corresponding increase in sharing of network resources between disjoint failures. A joint-optimization mechanism can be employed that considers both the cost of link-detour paths as well as the cost of links in candidate primary paths in the selection of a primary path for a demand. Information for the joint optimization is preferably distributed using link-state advertisements.