Appendix C - The NEs of type FO
Introduction
The FOXMAN-UN BP topological representation allows the user to use equipment and network of a third party equipment provider. A generic topological network element is created by the user and referred to as a Network Element (NE) of type «Foreign Object» (FO). An NE of type FO may have a Termination or Transport function for Circuits.
An example of the usage for an NE of type FO in a Transport configuration is a SDH transport network as shown below.
Passing the third party network
The user has two possible ways to model this network topology:
• A single NE of type FO is used to represent the whole third party network as shown in Figure Passing one NE of type FO:
Figure 94: Passing one NE of type FO
• The NE of type FO is used to represent each edge third party equipment of the SDH network; in this example two such NEs as shown in Figure Defining the edges by two NEs of type FO:
Figure 95: Defining the edges by two NEs of type FO