| 摘要 |
A method for provisioning optical connections in an optical network (118), the method comprises:
- providing a plurality of connection demands,
- selecting working paths (6) and provisioning working optical connections for satisfying all priority demands,
- selecting protection paths (7) disjoint from the working paths and provisioning protection optical connections for satisfying all priority demands,
- computing a first virtual transparent topology consisting of a first remaining available capacity (14) of the provisioned optical connections,
- selecting working paths within the virtual transparent topology and provisioning transparent tunnels (14) satisfying all non-priority demands,
- selecting working paths and provisioning additional working optical connections for satisfying any remaining non-priority demands,
- computing a second virtual topology consisting of a second remaining available capacity, and
- selecting protection paths within the second transparent virtual topology and provisioning transparent tunnels (104) for protecting a non-priority demand using the second remaining capacity. |
