Traffic Sentinel

At a glance

• Editor score
  6.7 / 10
• Pricing
  Pricing on request
• Best for
  Traffic visibility with topology analysis
• Free plan
  No
• Application monitoring
  Yes
• Facts checked
  21 Sep 2026

• Where it wins

  • Real-time visibility with drill-downs, thresholds, alarms, and Top-N views
  • Automated Layer 2 and Layer 3 topology discovery and mapping
  • Application dependency mapping plus historical and scheduled reporting

• Where it doesn't

  • Pricing is quote-based and requires contacting sales
  • Deployment is delivered as a web application on Linux systems
  • No permanent free plan is offered

Our verdict on Traffic Sentinel

Traffic Sentinel is a network traffic monitoring and analysis application from InMon for large, complex networks. It is designed for teams that need visibility across switch ports, servers, storage, communications performance, and other network devices. The product combines real-time traffic views with drill-down analysis, traffic profiling, host location, end-host discovery, thresholds, alarms, and Top-N visualizations. It runs as a web-based application installed on Linux virtual machines or standalone servers.

Its strongest differentiator is the breadth of analysis around network structure and application behavior. Automated Layer 2 and Layer 3 topology discovery and mapping can show how network elements relate, while application dependency mapping and application performance analysis extend monitoring beyond bandwidth alone. The product also supports historical traffic, server, and cluster reporting, along with customizable interactive and scheduled reports. Data collection includes sFlow, IPFIX, Cisco NetFlow, Juniper j-flow, and SNMP, with category support for application monitoring, bandwidth alerts, and SNMP monitoring.

Pricing is quote-based, and the product does not offer a permanent free plan. InMon advertises a free evaluation, while the evaluation duration is not specified. Traffic Sentinel suits organizations that need network-wide traffic analysis, topology discovery, and application-performance context in one system, particularly where monitoring spans many switch ports and servers. It is less suitable for teams seeking self-service pricing, a permanent free tier, or a deployment option outside its web and Linux model. Buyers should also assess the available integration interfaces and web-based queries against their existing operational tools before choosing it.

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Traffic Sentinel pricing

Traffic Sentinel fact sheet

Alternatives to Traffic Sentinel

• ntopngA broad self-hosted toolkit for real-time, historical, and infrastructure visibility.9.4
• ManageEngine NetFlow AnalyzerA broad flow-monitoring suite for enterprise networks, with free and scalable paid editions.9.2
• Progress FlowmonA broad hybrid monitoring platform for teams needing flow, topology, performance and security analysis.9.0

See all Traffic Sentinel alternatives →

Featured on iTechGuides

Traffic Sentinel is listed in our Bandwidth Monitoring Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update