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US 12,609,766 B2Granted
FlexO/ZR subrating and partial survivability
AssigneeCiena Corporation
InventorSebastien Gareau
Life of this patent
Estimating the term…
Abstract
An optical interface includes circuitry configured to operate the optical interface at a first rate, subsequent to a requirement to subrate the optical interface to a second rate, determine which services are affected, signal a partial failure for the one or more affected services, and operate the optical interface at a second rate that is less than the first rate. The optical interface can be a Flexible Optical (FlexO) or ZR interface.
Claims20
A coherent optical modem comprising:
- an optical interface configured to operate at a plurality of rates;
- circuitry configured to
- interface a plurality of services over the optical interface, and
- responsive to a requirement to adjust the optical interface between the plurality of rates, wherein the requirement is for any of (i) to improve margins on a current path, (ii) to support an alternative optical protection path from the current path, or (iii) the one or more services being unequipped, determine which of the plurality of services are mapped to slices or instances of the optical interface that will be unavailable after adjustment, and signal a partial failure for only the one or more affected services while maintaining operation of non-affected services of the plurality of services.
1 more element
A method of operating a coherent optical modem comprising steps of:
- operating an optical interface that is configured to operate at a plurality of rates;
- interfacing a plurality of services over the optical interface;
- and
- responsive to a requirement to adjust the optical interface between the plurality of rates, wherein the requirement is for any of (i) to improve margins on a current path, (ii) to support an alternative optical protection path from the current path, or (iii) the one or more services being unequipped, determining which of the plurality of services are mapped to slices or instances of the optical interface that will be unavailable after adjustment, and signaling a partial failure for only the one or more affected services while maintaining operation of non-affected services of the plurality of services.
1 more element
Dependencies are inferred from the claim text.