This Recommendation provides a unified management information model for both connection- oriented and connectionless networks. The information model is based on the unified functional architecture of transport network specified in [ITU-T G.800]. It is the scope of this Recommendation to define the following: the entities representing the abstraction of resources in unified connection-oriented and connectionless transport networks; the attributes of these entities; and the relationship among these entities, including the entities at the same layer and at different layers.