User guide

3-30
Cisco Transport Manager Release 9.2 GateWay/CORBA User Guide and Programmer Manual
OL-20937-01
Chapter 3 Using CTM GateWay/CORBA Interfaces
3.3.9 createTopologicalLinkWithYCableProtection
Description
This interface enables an NMS to create a Y-cable topological link manually between two managed
elements. A Y-cable link is a bidirectional link with one PTP source and two PTP destinations. Because
of the limitation in TMF for topological links that have one PTP source and one PTP destination, CTM
reports two topological links for a Y-cable link. These two topological links have the same
nativeEMSName. See 2.2.5.8 Topological Link, page 2-36 for the naming convention for the Y-cable
topological link object name. The destination of the Y-cable link must be on a DWDM card on an
ONS 15454 SONET/SDH or on an ONS 155xx NE.
CTM generates two object creation event notifications when a new Y-cable topological link is created.
The topological link returned by this method is one leg of the Y-cable.
Parameters
CTM support for MTLCreateData_T structure is as follows:
• string userLabel
– Supported. The value of this field is assigned to the nativeEMSName of the newly created
topological link.
• boolean forceUniqueness
– CTM guarantees the uniqueness of topological link names.
• string owner
– Not supported.
• globaldefs::ConnectionDirection_T direction
– Supports only CD_BI for bidirectional links.
• transmissionParameters::LayerRate_T rate. Supported layer rates are:
– LR_Physical_2_5_Gigabit_ITU
– LR_Physical_10_Gigabit_ITU
– LR_DSR_OC3_STM1
– LR_DSR_OC12_STM4
– LR_DSR_OC48_STM16
– LR_DSR_OC192_STM64
• globaldefs::NamingAttributesList_T aEndTPs
– Supported. It contains only one PTP.
Name Type Input/Output Description
createData topologicalLink:MTLCreateData_T In Data structure containing details for creating a
new Y-cable topological link.
topologicalLink topologicalLink::TopologicalLink_T Out One leg of the created Y-cable topological link
information.