A METHOD FOR PROVISIONING OPTICAL CONNECTIONS IN AN OPTICAL NETWORK
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United States of America Patent
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app pub date -
Mar 31, 2015
filing date -
Mar 31, 2014
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Abstract
A technique is provided for provisioning optical connections in an optical network. The technique includes providing a plurality of connection demands, selecting working paths and provisioning working optical connections to satisfy all priority demands, selecting protection paths disjoint from the working paths and provisioning protection optical connections to satisfy all priority demands, computing a first virtual transparent topology consisting of a first remaining available capacity of the provisioned optical connections, selecting working paths within the virtual transparent topology and provisioning transparent tunnels satisfying all non-priority demands, selecting working paths and provisioning additional working optical connections to satisfy any remaining non-priority demands, computing a second virtual topology consisting of a second remaining available capacity, and selecting protection paths within the second transparent virtual topology and provisioning transparent tunnels to protect a non-priority demand using the second remaining capacity.
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