How-To: Create Accurate Network Maps with SolarWinds Network Topology Mapper

Use Cases: 7 Real-World Ways to Leverage SolarWinds Network Topology Mapper for Network Management

SolarWinds Network Topology Mapper (NTM) automates discovery and mapping of network devices, giving network teams clear visualizations and up-to-date topology data. Below are seven practical, real-world use cases that show how NTM saves time, reduces errors, and improves network decision-making.

1. Baseline Discovery and Documentation

• What it does: Automatically discovers devices, interfaces, VLANs, subnets, and connections; generates printable topology maps and exportable documentation.
• Why it helps: Creates a reliable network baseline for audits, change control, and onboarding.
• How to use: Run a full network discovery on initial deployment, export diagrams to PDF/Visio, and store as configuration documentation.

2. Change Management and Impact Analysis

• What it does: Keeps maps current by scheduling recurring scans and detecting topology changes.
• Why it helps: Identifies devices or links added/removed and highlights configuration drifts that could impact services.
• How to use: Schedule daily/weekly scans, review detected changes before planned upgrades, and use maps to assess downstream dependencies.

3. Troubleshooting and Root-Cause Isolation

• What it does: Visualizes link states and device relationships so teams can quickly locate failed segments or misconfigurations.
• Why it helps: Reduces mean time to repair (MTTR) by giving a clear picture of where failures propagate.
• How to use: When an outage occurs, open the topology focused on the affected subnet or VLAN to trace upstream/downstream devices and isolate the fault.

4. Capacity Planning and Network Growth

• What it does: Shows device counts, interconnects, and VLAN/subnet layouts to reveal congested segments or underused paths.
• Why it helps: Informs decisions about where to add bandwidth, switches, or redesign topology to improve performance and scalability.
• How to use: Combine topology exports with performance data from monitoring tools to plan upgrades and re-architectures.

5. Security and Compliance Audits

• What it does: Maps access-layer devices, firewall placements, VLAN segmentation, and discovery of unauthorized devices.
• Why it helps: Helps verify segmentation policies, locate rogue devices, and produce evidence for compliance audits.
• How to use: Run periodic scans focused on access networks, flag unknown MAC/IPs, and export diagrams showing segmentation boundaries.

6. Migration and Merger Planning

• What it does: Produces a complete picture of both source and target networks for migrations, mergers, or cloud on-boarding.
• Why it helps: Reduces migration risk by identifying dependencies, overlapping IP spaces, and critical interconnects that must be preserved or readdressed.
• How to use: Map both environments, annotate critical links and services, and use the maps to build step-by-step cutover plans.

7. Integration with Network Management Workflows

• What it does: Exports to Visio and other formats and integrates with inventory and helpdesk systems to tie topology to tickets and asset records.
• Why it helps: Streamlines operations by linking topology context to incident tickets, configuration management databases (CMDBs), and runbooks.
• How to use: Configure NTM exports to feed your CMDB or attach topology snapshots to service tickets for faster, context-rich incident response.

Quick Best Practices

• Schedule regular scans to keep maps current.
• Export snapshots before major changes or upgrades.
• Combine topology maps with performance/security tools for richer analysis.
• Use filters and layers to focus on segments (VLANs, subnets, geographies).

These seven use cases show how SolarWinds Network Topology Mapper becomes a central tool for documentation, troubleshooting, planning, security, and integrations—turning raw device data into actionable network intelligence.