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. 22, 2020
Filed:
Jul. 14, 2017
Nashid Shahriar, Waterloo, CA;
Aimal Khan, Waterloo, CA;
Reaz Ahmed, Waterloo, CA;
Jeebak Mitra, Ottawa, CA;
Shihabur Rahman Chowdhury, Kitchener, CA;
Raouf Boutaba, Waterloo, CA;
Nashid Shahriar, Waterloo, CA;
Aimal Khan, Waterloo, CA;
Reaz Ahmed, Waterloo, CA;
Jeebak Mitra, Ottawa, CA;
Shihabur Rahman Chowdhury, Kitchener, CA;
Raouf Boutaba, Waterloo, CA;
HUAWEI TECHNOLOGIES CANADA CO., LTD., Kanata, CA;
Abstract
Network Virtualization can be used to map a virtual network (VN) on a substrate network (SN) while accounting for possible substrate failures, known as the Survivable Virtual Network Embedding (SVNE) problem. The VN can be equipped with sufficient spare backup capacity to sustain the Quality of Service during substrate failures, and the resulting VN may be equipped accordingly. The present application discloses jointly optimizing spare backup capacity allocation and embedding a VN to provide full bandwidth in the presence of a single substrate link failure. A solution may be formulated as a Quadratic Integer Program that can be further transformed into an Integer Linear Program, or as a heuristic.