Network specific routing and wavelength assignment for optical communications networks

摘要

To facilitate routing and wavelength assignment (RWA) in an optical communications network having a given topology of associated nodes and links, a set of system characteristics associated with operating the optical communications network may be determined. Different sets of values may be selected for one or more parameters of an RWA algorithm defined for operating a set of services on the optical communications network, and associated sets of routes and wavelengths that may be assigned to the set of services via the RWA algorithm in accordance with the different sets of values and the set of system characteristics may be determined. The different sets of routes and wavelengths may be compared based on one or more fitness criteria and thereby selected between. A path computation engine of the optical communications network may then be provisioned with the selected set of values for the one or more parameters.

主权项

1. A method for facilitating routing and wavelength assignment in an optical communications network having a given topology of associated nodes and links, the method comprising:
determining a set of system characteristics associated with operating the optical communications network based on the topology of associated nodes and links; selecting a first set of values for one or more parameters of a routing and wavelength assignment algorithm defined for operating a set of services on the optical communications network; determining a first set of routes and wavelengths assigned to the set of services via the assignment algorithm in accordance with the first set of values and the set of system characteristics; selecting a second set of values for the one or more parameters of the routing and wavelength assignment algorithm; determining a second set of routes and wavelengths assigned to the set of services via the assignment algorithm based on the second set of values and the set of system characteristics; comparing the first set of routes and wavelengths assigned to the set of services to the second set of routes and wavelengths assigned to the set of services based on one or more fitness criteria; selecting between the first and second sets of values based on the comparison; and provisioning a path computation engine of the optical communications network with the selected set of values for the one or more parameters to facilitate performing run-time routing and wavelength assignment operations by the path computation engine.