This operation allows an NMS to request all of the GTPs (on the ManagedElement) that contain one or more TPs at the specified layer rates.
If there are no GTPs that match the layer constraints, an empty list is returned.

Operation Exceptions:
1. NOT_IMPLEMENTED - Raised when EMS does not support this operation.
2. INTERNAL_ERROR - Raised in case of non-specific EMS internal failure.
3. INVALID_INPUT - Raised when the layerRateList contains undefined rates.
4. NE_COMM_LOSS - Raised when communication to managed element is lost.
