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:
Aug. 11, 2009
Filed:
Oct. 31, 2002
Siegfried Luft, Vancouver, CA;
Thomas Meehan, New York, NY (US);
Gerald W. Neufeld, Los Altos, CA (US);
Simon Williams, San Jose, CA (US);
Siegfried Luft, Vancouver, CA;
Thomas Meehan, New York, NY (US);
Gerald W. Neufeld, Los Altos, CA (US);
Simon Williams, San Jose, CA (US);
Redback Networks Inc., San Jose, CA (US);
Abstract
A method and apparatus for mesh based protection of an optical network is described. A method comprises protecting a first set of one or more optical sub-channels with automatic protection switching, utilizing a second and third set of one or more optical sub-channels to transmit traffic in accordance with a mesh process to transmit traffic, and transmitting traffic in the third set of optical sub-channels, which would have been transmitted in the second set of optical sub-channels, in accordance with routes determined by the mesh process in response to an alarm indicating a failure affecting the second set of optical sub-channels.