Gridless optical routing and spectrum assignment
AssigneeCiena Corporation
InventorsAnurag PRAKASH, Dominic RICHENS, Seemant BISHT, Mohit CHHILLAR
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Abstract
A method implemented by a processing device for gridless optical routing and spectrum assignment on links in an optical network includes, responsive to one or more new channel requests, performing a path computation utilizing frequency markers to determine feasibility of the one or more new channel requests, wherein the optical spectrum is represented as a real line with the frequency markers indicative of used optical spectrum; allocating the one or more new channel requests based on the path computation and allocation criteria; and responsive to allocating the one or more new channel requests, updating the associated frequency markers on the real line.
Claims20
A method implemented by a processing device for gridless optical routing and spectrum assignment on links in an optical network, the method comprising:
- responsive to one or more new channel requests, performing a path computation utilizing frequency markers to determine feasibility of the one or more new channel requests, wherein the optical spectrum is represented as a real line with the frequency markers indicative of used optical spectrum;
- allocating the one or more new channel requests based on the path computation and allocation criteria;
- and
- responsive to allocating the one or more new channel requests, updating the associated frequency markers on the real line.
An apparatus for gridless optical routing and spectrum assignment on links in an optical network, the apparatus comprising:
- circuitry adapted to perform a path computation utilizing frequency markers to determine feasibility of the one or more new channel requests responsive to one or more new channel requests, wherein the optical spectrum is represented as a real line with the frequency markers indicative of used optical spectrum;
- circuitry adapted to allocate the one or more new channel requests based on the path computation and allocation criteria;
- and
- circuitry adapted to update the associated frequency markers on the real line responsive to allocation of the one or more new channel requests.
A processing device adapted for gridless optical routing and spectrum assignment on links in an optical network, the processing device comprising:
- a processor;
- and
- memory storing instructions that, when executed, cause the processor to
- responsive to one or more new channel requests, perform a path computation utilizing frequency markers to determine feasibility of the one or more new channel requests, wherein the optical spectrum is represented as a real line with the frequency markers indicative of used optical spectrum,
- allocate the one or more new channel requests based on the path computation and allocation criteria, and
- responsive to allocation of the one or more new channel requests, update the associated frequency markers on the real line.
Dependencies are inferred from the claim text.