This example shows a hierarchical network tree mapping IoEd-Net connections, branching from TCP and UDP protocols down to specific local and remote IP addresses. It renders an SVG that visualizes the network topology using a static, hardcoded hierarchical data structure. The layout is computed with `d3.hierarchy` and `d3.tree()`, with curved links drawn via `d3.linkHorizontal()` and nodes as colored circles—red for the root, orange for protocols, and steelblue for IPs—accompanied by text labels.