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:
Jan. 09, 2018
Filed:
Apr. 29, 2015
Nec Laboratories America, Inc., Princeton, NJ (US);
Ankitkumar Patel, Monmouth Junction, NJ (US);
Philip Nan Ji, Cranbury, NJ (US);
Ting Wang, West Windsor, NJ (US);
NEC Corporation, Tokyo, JP;
Abstract
Methods and systems for embedding VI demands in a software-defined network include mapping virtual nodes over physical nodes in a network topology. An auxiliary graph including virtual links between physical nodes that have a residual capacity sufficient to meet a virtual infrastructure demand is constructed. Virtual links over physical links are mapped to maximize use of existing optical channels and to minimize switching of a virtual link between a wavelength division multiplexing layer and an IP layer. New optical channels with a maximum spectral efficiency are established. A set of potential solutions for embedding a set of virtual infrastructure demands is determined. A solution is selected from the set of potential solutions that maximizes a weighted average of spectrum needed to support the set of virtual infrastructure demands and a cost of provisioning the virtual infrastructure demands.