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US 11,695,472 B2Granted
Partial survivability for multi-carrier and multi-module optical interfaces
AssigneeCiena Corporation
InventorsTrevor John Ibach, Rahim Amarsi, Sebastien Gareau
Life of this patent
Estimating the term…
Abstract
Systems and methods include determining which services in a single Optical Transport Unit Cn (OTUCn) that is transmitted in an optical network via a plurality of optical carriers are affected by failed one or more optical carriers of the plurality of optical carriers; continuing to operate the single OTUCn with unaffected one or more optical carriers of the plurality of optical carriers; and adjusting some or all of the services from the failed one or more optical carriers to the unaffected one or more optical carriers.
Claims20
A method comprising:
- determining which services in a single Optical Transport Unit Cn (OTUCn) that is transmitted in an optical network via a plurality of optical carriers are affected by failed one or more optical carriers of the plurality of optical carriers;
- continuing to operate the single OTUCn with unaffected one or more optical carriers of the plurality of optical carriers, wherein the uneffected one or more optical carriers are on a same set of one or more links in the optical network as the failed one or more optical carriers;
- and
- adjusted some or all of the services from the failed one or more optical carriers to the unaffected one ore more optical carriers including adjusting at least one service already on the unaffected one or more optical carriers.
1 more element
A network element comprising:
- one or more ports forming a plurality of optical carriers (Optical Tributary Signal (OTSi)) that transport a single Optical Transport Unit Cn (OTUCn) in a network;
- and
- circuitry communicatively coupled to the one or more ports and configured to
- responsive to a determination of which services in a single Optical Transport Unit Cn (OTUCn) that is transmitted via the plurality of optical carriers are affected by a failure of one or more optical carriers of the plurality of optical carriers, cause continued operation of the single OTUCn with unaffected one or more optical carriers of the plurality of optical carriers, wherein the uneffected one or more optical carriers are on a same of one or more links in the network as the failed one or more optical carriers, and
- cause adjustment of some or all of the services from the failed one or more optical carriers to the unaffected one or more optical carriers including adjustment of at least one service already on the unaffected one or more optical carriers.
2 more elements
Dependencies are inferred from the claim text.