SolarWinds Network Topology Mapper

SolarWinds Network Topology Mapper is one of the few tools in this category built for network mapping specifically rather than mapping as a by-product of monitoring. It performs multi-level discovery to produce an integrated OSI Layer 2 and Layer 3 map with detailed device information, so the diagram shows both physical switch connections and logical routing rather than one or the other.

Discovery runs by scanning IP address ranges or from a defined seed device using industry-standard protocols, and maps refresh without re-scanning the network each time. The output matters as much as the discovery: maps export to Microsoft Visio, PDF and PNG, and exports can be scheduled so documentation stays current. That feeds directly into the compliance use case, since standards such as PCI require up-to-date network diagrams and maintaining those by hand is what most teams are trying to escape. It also doubles as network inventory management. SolarWinds offers a free trial and download; no price is published on the product page.