Top 12 Network Monitoring Tools in 2026: Complete Comparison & Reviews

Modern infrastructure is no longer a stack of routers, switches, and racks sitting in a single data center. Most teams now run a mix of Kubernetes clusters, virtual machines, managed cloud services, and SaaS dependencies spread across regions and providers. Knowing which device is up is not the same as knowing whether your application is healthy.

That shift is why network monitoring in 2026 looks very different from a decade ago. Traditional SNMP-based tools still have a place, but cloud-native teams need service-aware visibility, automatic topology discovery, and tight correlation with logs, metrics, and traces. The right tool can cut hours off incident response, surface cost leaks, and replace the architecture diagrams that are always getting outdated that nobody wants to maintain.

This guide compares the 12 best network monitoring tools available in 2026. For each one, you will find the features that matter, honest pros and cons, real pricing, and the kind of team it fits best.

What is Network Monitoring?

Network monitoring is the continuous practice of collecting data about network devices, traffic, and connections to detect performance issues, outages, and security events before they affect users. The data can come from many sources: SNMP polling for device health, NetFlow or sFlow for traffic analysis, packet captures for deep inspection, eBPF for kernel-level connection visibility, and synthetic probes for path validation.

The category has expanded beyond LAN and WAN. In 2026, network monitoring also covers:

• Pod-to-pod and node-to-node traffic inside Kubernetes clusters
• East-west traffic between microservices
• Cross-region and cross-cloud connectivity costs
• Connections to managed databases, message queues, and SaaS APIs
• Suspicious outbound traffic that might signal a compromise

Good network monitoring helps teams answer questions like: which services are talking to which databases right now, where is traffic getting slow, which connections are eating our cloud egress budget, and what process on which host opened that unexpected outbound connection.

What to Look for in a Network Monitoring Tool

Before comparing tools, here are the criteria that matter most in 2026.

Topology Discovery and Visualization

A good tool draws the map for you. Static Visio diagrams go stale the moment someone deploys a new service. Look for automatic discovery and a real-time topology view that updates as your infrastructure changes.

Kubernetes and Cloud-Native Support

Containerized workloads are short-lived and dynamic. Tools designed for static IP-based device lists struggle here. Native Kubernetes support, pod-aware identity, and service detection are now table stakes for any team running clusters.

Protocol Visibility

Knowing that two hosts exchanged 500 MB tells you less than knowing that an application server made 12,000 PostgreSQL queries to a specific database. Tools that detect protocols (HTTP, PostgreSQL, MongoDB, Kafka, Redis, and others) give you context, not just byte counts.

Auto-Detection of Services

Manually labeling every host and process does not scale. The best tools recognize databases, caches, message queues, web servers, and runtimes automatically based on process names, container images, network signatures, and orchestrator metadata.

Correlation with Logs, Metrics, and Traces

A network alert in isolation is not very useful. Tools that let you pivot from a network connection to the related logs, application metrics, or distributed traces dramatically reduce time to root cause.

Alerting and Thresholds

Alerts that fire on every minor blip get ignored. Look for tools that support tunable thresholds, baseline-aware anomaly detection, and clear escalation paths.

Pricing Transparency

Network monitoring is one of the categories where cost surprises are most common, especially with consumption-based pricing on flow data or device counts. Predictable, published pricing matters more than free tiers that turn into bill shock at scale.

The 12 Best Network Monitoring Tools in 2026

1. Sematext Network Map

Best for: Cloud-native teams that want eBPF-powered service and infrastructure visibility inside a full observability platform

 

Sematext Network Map gives you a real-time, visual representation of your entire infrastructure topology. Using eBPF-powered network insights collected by the Sematext Agent, you can see how services, pods, containers, and processes communicate across Kubernetes clusters and standalone hosts without configuring anything beyond installing the agent.

Instead of polling devices and inferring relationships, Network Map shows the actual connections happening right now. When something breaks, you can immediately see which services are affected and trace the problem to its source. Two complementary views, Services View and Infrastructure View (see details in the docs), let you flip between application-level dependency analysis and Kubernetes infrastructure drill-down.

Key Features:

• eBPF-based connection capture: Kernel-level visibility into every connection, no port mirroring or packet capture required. Next to zero overhead.
• Two views, one map: Services View for application dependencies, Infrastructure View for cluster, node, pod, container, and process drill-down
• Automatic service detection: Over 100 service types recognized out of the box, including PostgreSQL, MySQL, MongoDB, Redis, Kafka, RabbitMQ, Elasticsearch, Nginx, HAProxy, Envoy, and more
• Protocol-aware connections: Detects HTTP, PostgreSQL, MongoDB, Kafka, Redis, and dozens of other protocols with traffic volume per connection
• Key metrics: network latency, round trip time (RTT), packet loss, retransmissions, CPU, memory, disk I/O, HTTP latency, HTTP response codes, etc.
• Custom thresholds: Configurable warning and critical levels for CPU, memory, network I/O, and disk I/O so the map highlights what matters in your environment
• Color-coded health: Green, yellow, and red service cards and connection lines make problems visible at a glance
• Kubernetes-native: Cluster to node to pod to container to process navigation with namespace, deployment, and workload context
• Standalone host support: Works equally well for VMs and bare-metal servers, not just containers
• Filtering and search: Quickly focus on a namespace, service type, host, or specific service when the topology gets dense
• Unified observability: Pivot from network connections to logs, metrics, traces, and synthetic checks in the same UI

Pros:

• Truly cloud-native and Kubernetes-first, designed for dynamic infrastructure rather than retrofitted onto SNMP foundations
• eBPF means no application code changes, no sidecars, and no instrumentation work, and next to zero overhead
• Service detection works automatically for the technologies most teams actually run
• Integrated with the rest of the Sematext platform, so traces, logs, and metrics live next to your topology
• Significantly cheaper than the major enterprise observability platforms
• Useful for discovering unknown dependencies, suspicious connections, data exfiltration patterns, and cross-region cost leakage
• Replaces stale architecture diagrams with a live picture of what is actually running

Cons:

• Newer product compared to legacy NMS incumbents, less brand recognition among traditional network teams
• Focuses on host, container, and service visibility rather than deep packet inspection or SNMP-style switch and router polling

Pricing: Starts at $1.68 per host per month. Network Map scales with your Sematext Infrastructure Monitoring plan and retention. 14-day free trial, no credit card required.

Best For: DevOps and SRE teams running Kubernetes or hybrid cloud infrastructure who want service-aware network visibility tightly integrated with logs, metrics, and traces. Teams that find traditional NMS tools too device-centric and modern APM platforms too expensive.

Get started with Sematext Network Map or check out Network Map docs.

2. Datadog Network Monitoring

Best for: Enterprises already on Datadog who want network visibility inside the same platform

Datadog offers two related products: Network Performance Monitoring (NPM) for host-to-host and pod-to-pod traffic analysis, and Cloud Network Monitoring for cloud provider flow logs and load balancer telemetry. Both plug into the Datadog platform alongside APM, logs, and infrastructure monitoring.

Key Features:

• Host and Kubernetes pod-level traffic analysis via the Datadog Agent
• VPC flow log analysis for AWS, Azure, and GCP
• DNS monitoring with query-level visibility
• Cloud load balancer and gateway telemetry
• Integration with Datadog APM, logs, and infrastructure metrics

Pros:

• Strong if you already use Datadog for everything else
• Detailed flow analysis with rich filtering
• AI-assisted anomaly detection through Watchdog

Cons:

• Each Datadog product is billed separately, and bills add up quickly at scale
• “Bill shock” is a recurring complaint from customers
• Network products require agent and integrations setup separately from core APM

Pricing: Network Performance Monitoring starts at $5 per host per month. Cloud Network Monitoring is priced per analyzed flow. Costs scale with hosts, flows, and retention.

Best For: Mid-size to large enterprises already standardized on Datadog who can absorb the platform-wide cost.

3. Dynatrace

Best for: Large enterprises wanting AI-driven full-stack observability with network context

Dynatrace covers network visibility as part of its broader Davis AI observability platform. The OneAgent captures process-level network connections alongside code-level traces and infrastructure metrics.

Key Features:

• OneAgent captures host, process, and connection-level data automatically
• Smartscape topology view combining services, processes, and infrastructure
• Davis AI for root cause analysis across signals
• Multi-cloud and Kubernetes coverage
• Strong support for traditional enterprise workloads like SAP and mainframe

Pros:

• Truly automatic instrumentation with minimal manual configuration
• AI correlation across network, traces, logs, and metrics
• Strong enterprise governance and compliance features

Cons:

• Premium pricing, often the highest in the market
• OneAgent has a significant resource footprint compared to lightweight collectors
• Steep learning curve across the many Dynatrace apps and modules

Pricing: Custom pricing through sales. Typically positioned at the high end of the enterprise observability market.

Best For: Large enterprises with complex hybrid environments and the budget for a premium AI-powered observability platform.

4. Kentik

Best for: Network teams running large hybrid, multi-cloud, and internet-facing infrastructure

Kentik focuses on what it calls network intelligence: deep traffic analysis, BGP and internet path visibility, and AI-assisted investigation for hybrid and multi-cloud networks. It is particularly strong for service providers, SaaS companies, and large enterprises with significant cloud and internet exposure.

Key Features:

• NetFlow, sFlow, IPFIX, VPC flow logs, and synthetic test ingestion
• BGP and internet performance visibility
• Kentik AI Advisor and Cause Analysis for guided troubleshooting
• DDoS detection and mitigation analytics
• Hybrid and multi-cloud topology

Pros:

• Industry-leading depth for traffic analytics and internet path visibility
• Strong for cloud egress cost analysis
• AI-assisted investigation reduces time on complex incidents

Cons:

• Pricing aimed at mid-market and enterprise, not small teams
• Steeper learning curve than general-purpose monitoring tools
• Focused on NetOps workflows more than application-level observability

Pricing: Custom pricing through sales. Aimed at enterprise budgets.

Best For: Mid-market and enterprise NetOps and SRE teams managing complex hybrid and internet-connected networks.

5. Cisco ThousandEyes

Best for: Teams that need path visibility across the public internet and SaaS providers

ThousandEyes monitors network paths from your users and applications to wherever they need to go: SaaS apps, cloud regions, third-party APIs, and your own services. It is the go-to tool for understanding ISP, CDN, and public internet performance.

Key Features:

• Synthetic agents on user devices, in cloud regions, and on enterprise networks
• Hop-by-hop path visualization across the internet
• BGP route monitoring and outage detection
• SaaS application performance tests (Microsoft 365, Salesforce, Zoom, and similar)
• Internet outage detection and notifications

Pros:

• Best-in-class for public internet and SaaS path visibility
• Wide global agent network
• Strong correlation between user experience and underlying network paths

Cons:

• Does not cover host or pod-level traffic inside your infrastructure
• Pricing scales quickly with agent counts and test frequency
• Less useful as a standalone tool, usually has to be paired with another monitoring platform

Pricing: Subscription-based, priced per agent and per test. Custom quotes through sales.

Best For: Enterprises with significant SaaS, hybrid work, and internet-facing service dependencies that need to prove whether the problem is them, their ISP, or a SaaS provider.

6. SolarWinds Network Performance Monitor

Best for: Traditional enterprise IT teams managing on-premises networks

SolarWinds Network Performance Monitor is one of the longest-running enterprise NPM products. It excels at SNMP-based monitoring of routers, switches, firewalls, wireless access points, and other traditional network gear.

Key Features:

• SNMP v1, v2c, and v3 polling with deep multi-vendor support
• Automated Layer 2 and Layer 3 topology mapping
• NetPath for hop-by-hop path analysis
• Wireless network monitoring and heat maps
• Integration with the broader SolarWinds Observability portfolio

Pros:

• Deep coverage for traditional network gear from Cisco, Juniper, Aruba, Fortinet, and many others
• Mature alerting and reporting features
• Familiar to most network engineers

Cons:

• Built for static network device inventories rather than dynamic cloud-native workloads
• Self-hosted deployment requires Windows Server infrastructure
• Modernization toward SaaS has been gradual

Pricing: Starts around $1,995 for SolarWinds NPM perpetual license. SaaS pricing through SolarWinds Observability is consumption-based.

Best For: Enterprise NetOps teams managing campus, branch, or data center networks where SNMP and traditional NPM workflows dominate.

7. Auvik

Best for: MSPs and IT teams managing many distributed sites

Auvik is a cloud-based network monitoring platform aimed primarily at managed service providers and multi-site IT teams. Its automated topology mapping and per-site collector model make it easy to onboard new networks quickly.

Key Features:

• Cloud-managed with lightweight on-premises collectors per site
• Automatic Layer 1, 2, and 3 topology discovery and visualization
• TrafficInsights for NetFlow, sFlow, J-Flow, and IPFIX analysis
• Configuration backup and change tracking
• Multi-tenant architecture for MSPs

Pros:

• Fast time to value, sites usually online within an hour
• Excellent automated topology maps that update in real time
• Multi-tenant model purpose-built for MSPs
• Configuration management and syslog included

Cons:

• Per-billable-device pricing can get expensive at scale
• Less depth than Kentik or SolarWinds NPM for deep traffic analytics
• Not designed for application-level or container-level visibility

Pricing: Per-billable-device pricing through sales. Free trial available.

Best For: MSPs and IT teams managing dozens or hundreds of distributed sites where rapid onboarding matters.

8. Paessler PRTG Network Monitor

Best for: Small and mid-size organizations that prefer sensor-based, all-in-one monitoring

PRTG is a long-established Windows-based monitoring tool that uses a sensor model: each metric, port, or check is a sensor, and you pay for the total number of sensors. It covers networks, servers, applications, and IoT devices through SNMP, WMI, NetFlow, and HTTP probes.

Key Features:

• 250+ pre-built sensor types for network devices, servers, and applications
• SNMP, WMI, NetFlow, sFlow, J-Flow, and IPFIX support
• Maps, dashboards, and reporting included
• On-premises and PRTG Hosted options
• Free tier up to 100 sensors

Pros:

• Easy to install and configure on Windows
• Broad sensor catalog covers network and infrastructure in one tool
• Free tier is genuinely useful for small environments
• Strong fit for SMB and mid-market IT generalists

Cons:

• Sensor-based licensing gets complex and expensive as environments grow
• Windows-centric architecture (probes can be on Linux but the core is Windows-only)
• Less suitable for dynamic Kubernetes workloads

Pricing: Perpetual licenses from around $2,149 for 500 sensors. PRTG Hosted available as SaaS. Free up to 100 sensors.

Best For: Small and mid-size organizations running mixed Windows and Linux infrastructure that want a single tool for network and server monitoring.

9. ManageEngine OpManager

Best for: IT teams that want broad multi-vendor monitoring at a moderate price

OpManager is part of the ManageEngine portfolio. It provides SNMP, WMI, CLI, and Telnet-based monitoring with extensive multi-vendor support and offers both subscription and perpetual licensing.

Key Features:

• 200+ pre-built device templates across Cisco, Juniper, HP, Dell, Fortinet, and others
• Network Configuration Manager add-on for backup and compliance
• Workflow automation for routine remediation
• NetFlow Analyzer add-on for traffic analysis
• On-premises deployment with broad OS support

Pros:

• Significantly cheaper than SolarWinds NPM with comparable feature depth
• Perpetual licensing option for teams that prefer capital over operating expenses
• Strong multi-vendor coverage out of the box

Cons:

• Interface feels dated compared to modern SaaS tools
• Add-on modules increase the total cost
• Self-hosted only, no fully managed SaaS option

Pricing: Starts around $245 per year for 25 devices. Perpetual licenses available. NetFlow Analyzer and Network Configuration Manager priced separately.

Best For: Mid-market IT teams wanting broad on-premises network and server monitoring at a moderate price.

10. LogicMonitor

Best for: Hybrid infrastructure teams wanting SaaS-based monitoring across networks, servers, and cloud

LogicMonitor is a SaaS infrastructure monitoring platform that covers network devices, servers, cloud resources, and containers from a single console. The Edwin AI engine adds anomaly detection and event correlation across signals.

Key Features:

• 3,000+ integrations and modules across networks, servers, and cloud
• Cloud-managed with on-premises collectors
• Edwin AI for anomaly detection and alert correlation
• Per-device licensing rather than per-sensor or per-interface
• Topology mapping and synthetic checks

Pros:

• One of the broadest integration libraries in the market
• Predictable per-device pricing
• Strong fit for hybrid environments mixing data center and cloud

Cons:

• Enterprise pricing, not aimed at small teams
• Less focused on application-level or service-level visibility than Datadog or Dynatrace
• Some users report complex initial setup for advanced features

Pricing: Custom pricing through sales. Aimed at mid-market and enterprise.

Best For: Mid-market and enterprise IT teams managing hybrid infrastructure that want a single SaaS tool for networks, servers, and cloud.

11. Zabbix

Best for: Teams wanting a free, open-source enterprise-grade monitoring platform

Zabbix is one of the most widely deployed open-source monitoring tools. It supports SNMP, agent-based, agentless, and API-based monitoring for networks, servers, applications, and cloud services. The project has been actively developed for over two decades.

Key Features:

• SNMP, IPMI, JMX, ODBC, agent, and agentless monitoring
• Network discovery and topology maps
• Flexible templating and macros
• Notifications across many channels
• Distributed proxy architecture for large environments

Pros:

• Completely free and open-source under AGPL
• Mature, production-proven at very large scale
• Active community and commercial support available
• Flexible enough to cover networks, servers, and applications

Cons:

• Requires operational expertise to deploy, scale, and maintain
• UI feels less polished than commercial SaaS tools
• Initial configuration can be time-consuming

Pricing: Free. Commercial support and training available through Zabbix LLC.

Best For: Teams with the operational capacity to run their own monitoring infrastructure and that want full control without licensing costs.

12. Cilium Hubble

Best for: Kubernetes teams wanting open-source eBPF-native network observability

Cilium Hubble is the observability layer for Cilium, the CNCF-graduated eBPF-based networking and security project. It provides flow-level visibility, service maps, and policy enforcement insights for Kubernetes clusters.

Key Features:

• eBPF-based flow capture without sidecars
• L3, L4, and L7 visibility including HTTP, gRPC, Kafka, and DNS
• Service map visualization
• Network policy verification and dropped-flow analysis
• Integration with Prometheus and Grafana

Pros:

• Completely free and open-source under Apache 2.0
• Native eBPF approach with low overhead
• Strong for Kubernetes security and network policy use cases
• Tight integration with Cilium CNI

Cons:

• Requires Cilium as the CNI plugin, which is a significant architectural choice
• Operational expertise needed to deploy and scale Hubble
• Less suited for standalone hosts, VMs, or non-Kubernetes workloads

Pricing: Free. Commercial support through Isovalent (now part of Cisco).

Best For: Kubernetes-native teams that have adopted or are willing to adopt Cilium as their CNI and want deep eBPF-based flow observability without commercial licensing.

Network Monitoring Tools Comparison Table

Tool	Deployment	Kubernetes	Telemetry	Pricing	Best For
Sematext Network Map	SaaS	Native	eBPF, agent metrics	Per host	Cloud-native teams wanting service-aware visibility
Datadog Network Monitoring	SaaS	Yes	Agent flows, VPC flow logs	Per host + per flow	Enterprises already on Datadog
Dynatrace	SaaS or managed	Yes	OneAgent	Custom	Large enterprises wanting AI-driven observability
Kentik	SaaS	Yes	NetFlow, sFlow, VPC flows, BGP	Custom	NetOps in hybrid and multicloud
Cisco ThousandEyes	SaaS	Limited	Synthetic agents, BGP	Per agent	Internet and SaaS path visibility
SolarWinds NPM	Self-hosted or SaaS	Limited	SNMP, NetPath	License + maintenance	Traditional enterprise NetOps
Auvik	SaaS	Limited	SNMP, NetFlow	Per device	MSPs and multi-site IT
Paessler PRTG	Self-hosted or SaaS	Limited	SNMP, WMI, NetFlow	Per sensor	SMB and mid-market generalists
ManageEngine OpManager	Self-hosted	Limited	SNMP, WMI, NetFlow	Per device	Mid-market multi-vendor
LogicMonitor	SaaS	Yes	Agent, SNMP, cloud APIs	Per device	Hybrid infrastructure teams
Zabbix	Self-hosted	Yes	Agent, SNMP, IPMI	Free	Open-source enterprise
Cilium Hubble	Self-hosted	Native	eBPF	Free	Kubernetes-native eBPF

How to Choose the Right Network Monitoring Tool

Start With Your Stack

A team running mostly Cisco switches and on-premises servers has a very different set of needs from a team running Kubernetes on EKS. SNMP-based tools like SolarWinds, ManageEngine, and PRTG remain the right answer for traditional network gear. For Kubernetes and dynamic cloud workloads, eBPF-based tools like Sematext Network Map and Cilium Hubble give you visibility that legacy NMS products cannot match.

Decide Whether You Want a Standalone or Integrated Tool

Network monitoring used to be a separate tool maintained by a separate team. That model still works for some organizations, but most modern teams benefit from network visibility that lives next to logs, metrics, and traces. Sematext, Datadog, Dynatrace, and LogicMonitor all let you correlate network signals with application data. Standalone specialists like Kentik and ThousandEyes go deeper in their niche, often paired with a broader observability platform.

Model Your Cost at Scale

Pricing models vary widely. Per-sensor models like PRTG can balloon as you add checks. Per-device models like Auvik and LogicMonitor are predictable but can become expensive as device counts grow. Per-host models like Sematext and Datadog scale with infrastructure size. Always run a quick projection for your expected scale rather than going by starter-tier pricing.

Test Before You Buy

Most commercial tools offer free trials. Open-source tools cost only your time. Pick two or three candidates that fit your environment and run them on a real workload for a week or two. You will learn more from a short pilot than from any vendor demo.

Do Not Forget About People

A tool nobody uses is worse than no tool at all. Whatever you choose, make sure your on-call engineers find the UI usable, the alerts trustworthy, and the data easy to share across teams.

Conclusion

Network monitoring in 2026 is no longer a single category. Some teams need deep SNMP visibility for traditional gear. Others need eBPF-based service maps for Kubernetes. Many need both, plus correlation with logs, metrics, and traces.

For cloud-native and hybrid teams, Sematext Network Map stands out as the most pragmatic choice in 2026. It gives you eBPF-powered service and infrastructure visibility, automatic detection of over 100 service types, Kubernetes-native drill-down, and integration with logs, metrics, traces, and synthetic monitoring in one platform. All of that comes at a fraction of the cost of the major enterprise observability incumbents.

If your environment is dominated by traditional network gear, SolarWinds, ManageEngine, and Auvik remain solid choices. If you need internet and SaaS path visibility, ThousandEyes is hard to beat. If you want fully open-source, Zabbix covers the broad case and Cilium Hubble covers the Kubernetes-native case.

Whatever you choose, prioritize tools that fit how your infrastructure actually works today, not how it worked five years ago.

Ready to see your infrastructure as it really is? Try Sematext Network Map free for 14 days, no credit card required.

FAQ

What is the difference between network monitoring and observability?

Network monitoring focuses on the health and behavior of network infrastructure: devices, interfaces, traffic, paths, and connections. Observability is a broader practice that combines logs, metrics, traces, and topology to understand the health of the entire system, including applications. Modern tools like Sematext, Datadog, and Dynatrace blur the line by treating network visibility as one signal among many.

Do I need separate network monitoring if I already have APM?

APM tells you what your application code is doing. Network monitoring tells you what is happening at the network connection and infrastructure level. The two are complementary. A slow database query shows up in APM. A flaky network path, a saturated link, or a rogue process making outbound calls shows up in network monitoring, but not in APM. Most teams benefit from both, ideally on the same platform.

What is eBPF and why does it matter for network monitoring?

eBPF (extended Berkeley Packet Filter) is a Linux kernel technology that lets tools safely run sandboxed programs inside the kernel to observe events such as network connections, system calls, and packet processing. For network monitoring, eBPF allows tools to capture connection-level data with very low overhead and without modifying applications. Tools like Sematext Network Map and Cilium Hubble use eBPF to build accurate, real-time topology views without sidecars, port mirroring, or packet captures.

Can network monitoring tools work with Kubernetes?

Yes, but with very different levels of effectiveness. Tools designed for static device inventories struggle with the dynamic nature of pods and containers. eBPF-based and Kubernetes-aware tools like Sematext Network Map, Cilium Hubble, Datadog NPM, and Dynatrace are built for this environment. Traditional SNMP-focused tools can still monitor the underlying nodes, but they will not give you pod-level or service-level visibility.

What are the best free or open-source network monitoring tools in 2026?

Zabbix remains the most widely deployed open-source choice for general infrastructure and network monitoring. Nagios and Icinga are still in active use for traditional environments. LibreNMS and OpenNMS are strong for SNMP-heavy networks. For Kubernetes-native, eBPF-based observability, Cilium Hubble is the leading open-source option. All of these are free to use but require operational expertise to deploy and scale.

How much do network monitoring tools cost?

Pricing varies enormously. Open-source tools are free but carry operational cost. Per-device tools like Auvik and OpManager typically range from a few dollars to tens of dollars per device per month. Per-host tools like Sematext Network Map start around $1.68 per host per month. Per-sensor tools like PRTG depend on how many checks you configure. Enterprise platforms like Datadog, Dynatrace, Kentik, and LogicMonitor are usually priced through sales and can run from tens of thousands to hundreds of thousands of dollars per year depending on scale.

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