Patent ID: 9172489
Filing Date: 2015-10-27
Classification: H04J,H04L,H04Q

Abstract:
1. A method in which a first digital network element discovers a second digital network element, a plurality of optical signals being communicated between the first digital network element and the second digital network element, each of the plurality of optical signals having a corresponding one of a plurality of wavelengths, the plurality of wavelengths being divided into groups of wavelengths, each of the groups of wavelengths being a corresponding one of a plurality of optical channel groups, the method comprising: transmitting, on a first optical service channel from the first digital network element to the second digital network element, a first local advertisement including first information identifying a number of the plurality of optical channel groups carried on a physical link extending from the first digital network element to the second digital network element; receiving the first local advertisement at the second digital network element; processing the first local advertisement at the second digital network element; and transmitting a second local advertisement including second information from the second digital network element to the first digital network element on a second optical service channel, the second information indicating that the second digital network element is configured to receive said at least one of the plurality of optical channel groups.