Intoduction
For Operation and Maintenace technicans it is important to get a graphical view of the network to perform their tasks - e.g. fault analysis. Therefore. a topology view showing all the involved entities and their associations, connections and end-to-end services should be created.
An abstract topology is defined by nodes and the associations between the nodes, the edges.
In O-RAN case the topology nodes are O-RAN components and functions such as Near-real-time-RAN-Intelligent-Controller, O-CU-UP, O-CU-CP, O-DU, and O-RUs → Component topology.
The components are connected to each other via the different interfaces (A1, E2, E1, F1, O1, X2, ...) and their termination points. Such connections are represented by topology-edges.
Topology in general and especially RAN topologies are quite huge and may contain millions of nodes and edges. It might be beneficial to create different topology views and different representation types (e.g. graph, table) of the same network.