Network controller, optical transmission system, and method for determining failure
AssigneeFujitsu Limited
InventorSATORU OKANO
Life of this patent
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Abstract
There is provided a network controller configured to control a node, the network controller including a memory, and a processor coupled to the memory and the processor configured to acquire a signal quality of an optical signal transmitted on an optical transmission line to which the node is coupled, acquire transmission characteristics of the node or the optical transmission line, correct the acquired signal quality, based on the acquired transmission characteristics, and detect a variation of the corrected signal quality.
Claims20
A network controller configured to control a node, the network controller comprising:
- a memory;
- and
- a processor coupled to the memory and the processor configured to:
- acquire a signal quality of an optical signal transmitted on an optical transmission line to which the node is coupled;
- acquire transmission characteristics of the node or the optical transmission line;
- correct the acquired signal quality, based on the acquired transmission characteristics;
- and
- detect a variation of the corrected signal quality.
An optical transmission system comprising:
- a plurality of nodes coupled each other by an optical transmission line and configured to include a monitor to monitor transmission characteristics of the optical transmission line;
- a network controller configured to include:
- a memory;
- and
- a processor coupled to the memory and the processor configured to:
- acquire a signal quality of an optical signal transmitted on an optical transmission line to which the node is coupled;
- acquire transmission characteristics of the node or the optical transmission line;
- correct the acquired signal quality, based on the acquired transmission characteristics;
- and
- detect a variation of the corrected signal quality.
A method for determining a failure, the method comprising:
- acquiring a signal quality of an optical signal transmitted on an optical transmission line to which the node is coupled;
- acquiring transmission characteristics of the node or the optical transmission line;
- correcting the acquired signal quality, based on the acquired transmission characteristics;
- and
- detecting a variation of the corrected signal quality, by a processor.
Dependencies are inferred from the claim text.