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:
May. 22, 2012
Filed:
Dec. 19, 2007
Jean Philippe Vasseur, Dunstable, MA (US);
Ornan Gerstal, Los Altos, CA (US);
Gabriele Maria Galimberti, Masciago, IT;
Giovanni Martinelli, Lombardia, IT;
Jean Philippe Vasseur, Dunstable, MA (US);
Ornan Gerstal, Los Altos, CA (US);
Gabriele Maria Galimberti, Masciago, IT;
Giovanni Martinelli, Lombardia, IT;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Methods and apparatus for efficiently utilizing an optical control plane distinct from an electronic control plane to facilitate the setup of paths in a dense wave division multiplexing network are disclosed. According to one aspect of the present invention, a method includes receiving a probe arranged determine the optical feasibility of a first path, and determining a probability of success associated with the probe. The probability of success indicates a likelihood that the probe will be successfully routed on the first path to the destination, and is associated with a particular wavelength. A second path on which to route the probe is dynamically identified if the probability indicates a low likelihood of successful routing on the first path. Finally, the method includes determining if a notification associated with the probe has been received, and altering the probability of success based on the notification if the notification has been received.