SYSTEM AND METHOD FOR SHARED MESH RESTORATION IN OPTICAL NETWORKS
First Claim
1. A method for shared mesh restoration, comprising:
- configuring a switch to allow sharing of a plurality of backup line cards across a plurality of node degrees associated with a reconfigurable optical add/drop multiplexer (ROADM), the switch communicatively coupled to the ROADM; and
configuring a number of backup line cards coupled to the switch, the number of backup line cards based on;
for each of a plurality of network failures associated with each of the plurality of node degrees of the ROADM, determining a number of active backup lightpaths;
for all of the plurality of node degrees of the ROADM and for each of the plurality of network failures, identifying which node degree and failure has the largest number of active backup lightpaths; and
determining the number of backup line cards to configure based on the identified largest number of active backup lightpaths.
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Accused Products
Abstract
A method for shared mesh restoration includes configuring a switch to allow sharing of a plurality of backup line cards across a plurality of node degrees associated with a reconfigurable optical add/drop multiplexer (ROADM). The switch is communicatively coupled to the ROADM. The method further includes configuring a number of backup line cards coupled to the switch. The number of backup line cards is based on determining a number of active backup lightpaths for each of a plurality of network failures associated with each of the plurality of node degrees of the ROADM, identifying which node degree and failure has the largest number of active backup lightpaths for all of the plurality of node degrees of the ROADM and for each of the plurality of network failures, and determining the number of backup line cards to configure based on the identified largest number of active backup lightpaths.
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Citations
18 Claims
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1. A method for shared mesh restoration, comprising:
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configuring a switch to allow sharing of a plurality of backup line cards across a plurality of node degrees associated with a reconfigurable optical add/drop multiplexer (ROADM), the switch communicatively coupled to the ROADM; and configuring a number of backup line cards coupled to the switch, the number of backup line cards based on; for each of a plurality of network failures associated with each of the plurality of node degrees of the ROADM, determining a number of active backup lightpaths; for all of the plurality of node degrees of the ROADM and for each of the plurality of network failures, identifying which node degree and failure has the largest number of active backup lightpaths; and determining the number of backup line cards to configure based on the identified largest number of active backup lightpaths. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A network node for shared mesh restoration, comprising:
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a switch communicatively coupled to a reconfigurable optical add/drop multiplexer (ROADM), the ROADM associated with a plurality of node degrees; a plurality of backup line cards coupled to the switch; the network node configured to; configure the switch to allow sharing of the plurality of backup line cards across the plurality of node degrees associated with the ROADM; configure a number of backup line cards based on; for each of a plurality of network failures associated with each of the plurality of node degrees of the ROADM, determine a number of active backup lightpaths; for all of the plurality of node degrees of the ROADM and for each of the plurality of network failures, identify which node degree and failure has the largest number of active backup lightpaths; and determine the number of backup line cards to configure based on the identified largest number of active backup lightpaths. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A non-transitory computer-readable storage medium comprising logic for shared mesh restoration, the logic when executed by a processor operable to:
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configure a switch to allow sharing of a plurality of backup line cards across a plurality of node degrees associated with a reconfigurable optical add/drop multiplexer (ROADM), the switch communicatively coupled to the ROADM; and configure a number of backup line cards coupled to the switch, the number of backup line cards based on; for each of a plurality of network failures associated with each of the plurality of node degrees of the ROADM, determine a number of active backup lightpaths; for all of the plurality of node degrees of the ROADM and for each of the plurality of network failures, identify which node degree and failure has the largest number of active backup lightpaths; and determine the number of backup line cards to configure based on the identified largest number of active backup lightpaths. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification