This disclosure describes techniques that include receiving underlay flow data from a network having an underlay network and one or more overlay network, storing information identifying, for each underlay data flow, an overlay network, displaying, within a display, a topological map of at least a portion of the underlay network, highlighting a data path through the displayed topological map, the highlighted data path extending through the underlay network from the underlay network source of the respective underlay data flow to the underlay network destination of the respective underlay data flow; receiving a request for metrics associated with the highlighted data path, wherein receiving a request includes receiving, via a graphical user interface, an indication selecting at least a portion of the highlighted data path; and displaying, proximate to the highlighted data path, metrics associated with data traffic through the selected portion of the highlighted data path.