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US 9,806,939 B2Granted
Method and apparatus for linear protection switching
AssigneeElectronics and Telecommunications Research Institute
InventorsDae Ub Kim, Jeong Dong Ryoo, Tae Sik Cheung
Life of this patent
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Abstract
Provided is a linear protection switching method of a node, wherein the method includes selecting a local request based on a priority of at least one local request, determining a global request based on a priority between the selected local request and a remote message, and performing a state transition based on the global request.
Claims20
A linear protection switching method of a node, the method comprising:
- determining a local request having a highest priority among at least one local request;
- determining a global request based on a priority between the determined local request and a remote message;
- and
- performing a state transition based on the global request,
- wherein when the new local request request and the remote message request different protection actions despite the new local request and the remote message having equal priorities, the remote message is determined to be the global request.
2 more elements
A linear protection switching method of a node, the method comprising:
- selecting a local request based on a priority of at least one local request;
- determining a global request based on a priority between the selected local request and a remote message;
- and
- performing a state transition based on the global request,
- wherein, when the node is in a remote state in which the global request is determined by the remote message and a new local request occurs, and the new local request and the remote message request different protection actions despite the new local request and the remote message having equal priorities, the remote message is determined to be the global request.
2 more elements
A linear protection switching method of a node, the method comprising:
- selecting a local request based on a priority of at least one local request;
- determining a global request based on a priority between the selected local request and a remote message;
- and
- performing a state transition based on the global request,
- wherein, when the selected local request is ignored due to the remote message, the determining of the global request comprises informing a local request logic that the selected local request is cancelled.
2 more elements
Dependencies are inferred from the claim text.