The FOXMAN-UN NP supports modeling of TDM Trails, Circuits and Sub Network Connection SNC bearers at Section, Path and Circuit layers as defined in ITU-T recommendation G.805.

ITU-T G.805 provides a terminology for the abstraction of a transport network from a functional point of view. The FOXMAN-UN NP utilizes the benefits provided by the ITU-T G.805 recommendation and simplifies them to some extent.

An understanding of this terminology is required since it is widely utilized by the user interface.