Alarm Correlation and Ticketing for Open Reconfigurable Optical Add/Drop Multiplexer Networks

A reconfigurable optical add/drop multiplexer (“ROADM”) controller comprising:

• a processor;
• and
• a memory comprising instructions that, when executed by the processor, cause the processor to perform operations comprising
• creating, based upon data associated with a plurality of ROADM network elements operating in a ROADM network, a graph of the plurality of ROADM network elements, wherein creating the graph of the plurality of ROADM network elements comprises creating, by the ROADM controller, based upon the data associated with the plurality of ROADM network elements operating in the ROADM network, a horizontal dimension of the graph, wherein the horizontal dimension of the graph represents supporting relationships between a supported logical circuit, path, or link and an ordered list of supporting ports, interfaces, logical connections, and links,
• retrieving a plurality of alarms from at least a portion the plurality of ROADM network elements,
• associating the plurality of alarms with at least the portion of the plurality of ROADM network elements,
• associating a direction of each alarm of the plurality of alarms with a corresponding service direction,
• eliminating any alarms of the plurality of alarms with a time stamp outside of a same time window, and
• determining that any remaining alarms of the plurality of alarms are associated with a root cause of a failure within the ROADM network.

A computer-readable storage medium comprising computer-executable instructions that, when executed by a processor of a reconfigurable optical add/drop multiplexer (“ROADM”) controller, cause the processor to perform operations comprising:

• creating, based upon data associated with a plurality of ROADM network elements operating in a ROADM network, a graph of the plurality of ROADM network elements, wherein creating the graph of the plurality of ROADM network elements comprises creating, by the ROADM controller, based upon the data associated with the plurality of ROADM network elements operating in the ROADM network, a horizontal dimension of the graph, wherein the horizontal dimension of the graph represents supporting relationships between a supported logical circuit, path, or link and an ordered list of supporting ports, interfaces, logical connections, and links;
• retrieving a plurality of alarms from at least a portion the plurality of ROADM network elements;
• associating the plurality of alarms with at least the portion of the plurality of ROADM network elements;
• associating a direction of each alarm of the plurality of alarms with a corresponding service direction;
• eliminating any alarms of the plurality of alarms with a time stamp outside of a same time window;
• and
• determining that any remaining alarms of the plurality of alarms are associated with a root cause of a failure within the ROADM network.