1. A method for monitoring communication over a network with a network monitoring device (NMD) that performs actions, comprising: providing a plurality of ranked positions in a user-interface to display one or more visualizations of network traffic, wherein a rank for each of the ranked positions is based on one or more of measurement information or one or more heuristics for the network traffic; displaying the one or more visualizations in the user-interface based on layout information that includes geometry information for each of the ranked positions, wherein the one or more visualizations are associated with one or more metrics for the network traffic; and when one or more portions of the measurement information change and exceed one or more defined threshold values, modifying the display of the ranked positions for the one or more visualizations to reflect a new rank for the ranked positions based on the change to the one or more portions of the measurement information.