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:
Nov. 29, 2016
Filed:
Jun. 03, 2014
Piyush Sharma, Gurgaon, IN;
Waseem Reyaz Khan, Gurgaon, IN;
Ramanjit Walia, Gurgaon, IN;
Darek Skalecki, Ottawa, CA;
Gerard Swinkels, Ottawa, CA;
Piyush Sharma, Gurgaon, IN;
Waseem Reyaz Khan, Gurgaon, IN;
Ramanjit Walia, Gurgaon, IN;
Darek Skalecki, Ottawa, CA;
Gerard Swinkels, Ottawa, CA;
Ciena Corporation, Hanover, MD (US);
Abstract
A method in a network utilizing a distributed connection-oriented control plane includes signaling a first path for a first connection from a first source node; storing call information for the first connection at any intermediate nodes in the first path; signaling a second path for a second connection from a second source node; checking at any intermediate nodes in the second path if there is absolute route diversity between the first connection and the second connection responsive to a requirement therein; and responsive to detecting a diversity violation at an intermediate node of the any intermediate nodes in the second path, signaling a crankback to the second source node with the call information for the first connection included therein; and recomputing the second path exclusive of the first path based on the call information responsive to receiving the crankback. A network and node are also described.