US 10,237,011 B2 · Methods and apparatus for pre-programming layer-0 service turn up speeds for photonic service provisioning or restoration

Abstract

Pre-programming Layer-0 optical protection path restoration speeds is provided based on available path margin. Higher layer routers and switches can be made aware of the expected Layer-0 restoration time, and their switch time can be programmed accordingly. The proposed method can provide users an option to program a restoration speed for a specific photonic service on a per restoration path basis. The method can highlight which services will potentially be impacted by the selected restoration speed on that path. The user can proceed with the selected speed for restoring high priority layer-0 services even if that means the fast restoring event can potentially impact other low priority services already in-service on the restoration path.

Claims20

Dependent claims

A method of estimating photonic service capacity change speed along an optical transport path in an optical network, the method comprising:

determining first available margins of all existing first services actively provisioned along the optical transport path according to a then present optical loading condition along the optical transport path;
readjusting each first available margin by a first additional margin penalty each first active service would incur when the photonic service capacity would be changed along the optical transport path;
obtaining a path margin from the readjusted first available margins;
determining a maximum path allowable power offset from the path margin;
and
indicating photonic controller settings which would generate less than the maximum path allowable power offset for all first active services along the transport path during the photonic service capacity change for network planning a non-service affecting photonic service capacity change.

3 more elements

A control plane server for estimating photonic service capacity change speed in an optical network, for each photonic service capacity change the control plane server being configured to:

determine available margins of all existing services actively provisioned along an optical transport path according to a then present optical loading condition along the optical transport path;
readjust each available margin by an additional margin penalty each active service would incur when the photonic service capacity would be changed along the optical transport path;
obtain a path margin from the readjusted available margins;
determine a maximum path allowable power offset from the path margin;
and
indicate photonic controller settings which would generate less than the maximum path allowable power offset for all active services along the transport path during the photonic service capacity change for network planning a non-service affecting photonic service capacity change.

3 more elements

Dependencies are inferred from the claim text.

Methods and apparatus for pre-programming layer-0 service turn up speeds for photonic service provisioning or restoration

Life of this patent

Methods and apparatus for pre-programming layer-0 service turn up speeds for photonic service provisioning or restoration

Life of this patent

Abstract

Claims20