# What is Network Performance Monitoring (NPM)?

[Network Performance Monitoring (NPM)](https://www.manageengine.com/network-monitoring/network-performance-monitoring.html?what-is-npm) is the strategic process of scrutinizing, analyzing, and proactively managing the health, performance, and availability of your network infrastructure. By collecting and analyzing real-time data from diverse network devices, NPM tools provide a comprehensive view of your network's operational status, from identifying traffic spikes to detecting potential failures, enabling IT teams to identify potential issues before they impact end-users.

Imagine NPM as a sophisticated traffic management system for your network. Just as sensors and cameras monitor highways to prevent jams and accidents, NPM tools provide the "eyes and ears" needed to ensure smooth network traffic flow.

## Why is network performance monitoring important?

In today's interconnected world, network performance is vital for business success. Downtime, latency, or poor network health can result in revenue loss, reduced productivity, and dissatisfied customers. Network Performance Monitoring (NPM) helps organizations maintain seamless operations by detecting and resolving issues quickly.

Additionally, in regulated industries like finance and healthcare, NPM plays a crucial role in ensuring compliance. It monitors network activity for anomalies, generates detailed audit logs, and provides insights to prevent non-compliance penalties. By offering proactive alerts and comprehensive reporting, NPM supports both operational efficiency and regulatory adherence.

## How does Network Performance Monitoring (NPM) work?

Network performance monitoring tools monitor performance and usage of network by collecting data from network devices such as routers, switches, firewalls, and servers using various technologies:

- [SNMP (Simple Network Management Protocol)](https://www.manageengine.com/network-monitoring/what-is-snmp.html?what-is-SNMP): A standard protocol for collecting and organizing information about managed devices on IP networks.
- **NetFlow**: A network protocol developed by Cisco for collecting IP traffic flow information.
- **Packet Capture**: The process of intercepting and logging traffic passing over a digital network.

### Here’s a breakdown of how NPM works:

1. **Data collection**: Real-time data on traffic patterns, resource utilization, and error rates is gathered from network devices.
2. **Analysis and correlation**: Advanced algorithms, including machine learning (ML) and artificial intelligence (AI), analyze the collected data to identify patterns and anomalies.
3. **Alerting**: Automated alerts are triggered for abnormal network behavior, notifying administrators via dashboards, email, or mobile notifications.
4. [Visualization](https://www.manageengine.com/network-monitoring/tech-topics/what-is-network-visualization.html?what-is-NPM): Customizable dashboards provide graphical representations of network performance, enabling quick issue identification.

For instance, if latency suddenly increases, NPM can correlate it with a spike in bandwidth usage, indicating a possible DDoS attack.

## Key NPM metrics to monitor

Network key performance indicators (KPIs) are measurable metrics used to evaluate the effectiveness and reliability of a network. Monitoring these KPIs helps network managers identify issues, optimize performance, and ensure the network meets service level agreements (SLAs). Common network KPIs include:

- **Bandwidth usage**: Measures the amount of data transmitted across the network. Excessive consumption may signal resource-intensive applications or potential malicious activity.
- **Latency**: Measures how long it takes for data packets to travel from the source to the destination. Increased latency can result in slower application performance.
- [Packet loss](https://www.manageengine.com/network-monitoring/tech-topics/network-packet-loss.html?what-is-NPM): This occurs when data packets fail to reach their destination, which can significantly disrupt video calls or VoIP services, even at low levels.
- **Jitter**: Refers to the inconsistency in packet arrival times, which can disrupt real-time applications like video conferencing.
- **Uptime and downtime**: Tracks how long devices and applications remain operational. High uptime is crucial for critical business services.
- **Throughput**: Monitors the amount of data successfully delivered over a network, reflecting network capacity and speed.

## Benefits of using an NPM tool

Implementing an NPM solution provides several advantages, including:

- **Proactive issue detection**: NPM identifies issues before users notice them, reducing downtime and minimizing impact.
- **Enhanced user experience**: With NPM tool, maintain optimal application performance by ensuring low latency and consistent bandwidth.
- **Resource optimization**: Utilize network performance monitoring (NPM) to analyze traffic patterns, allocate bandwidth efficiently, and avoid unnecessary infrastructure costs.
- **Reduced downtime**: Quickly troubleshoot issues with NPM's accurate diagnostic data, minimizing mean time to resolution (MTTR).
- **Data-driven decision making**: Use actionable insights from NPM reports to plan for network expansions and optimize performance.
- **Compliance and security**: Track network activity for compliance reporting and detect unusual behaviors that may indicate cyber threats.

## How to choose a right network performance monitoring tool

Choosing the right NPM tool depends on your organization’s size, network complexity, and monitoring needs. You can consider these factors:

- **Comprehensive monitoring**: Select a NPM tool that provides end-to-end visibility across all devices, applications, and cloud services.
- **Real-time alerts**: Make sure the tool provides real-time alerts for critical issues with adjustable thresholds.
- **Scalability**: Choose a NPM solution that can grow with your network infrastructure, accommodating additional devices and locations.
- **Customizable dashboards**: Opt for dashboards that present data visually, making it easier to interpret insights.
- **Integration capabilities**: Ensure compatibility with third-party applications like ticketing systems, collaboration platforms, and security tools.
- **AI and ML capabilities**: AI-powered tools offer predictive analytics and intelligent anomaly detection.

## Explaining why choose OpManager as your NPM tool with a use case

**Use case**: Ensuring seamless E-Commerce operations

Imagine an e-commerce company running a major promotional sale. The marketing team expects a 5x traffic spike, putting the network infrastructure under stress.

- **Real-time monitoring**: OpManager's NPM monitor continuously tracks bandwidth, latency, and application response time.
- **Automated alerts**: As soon as the traffic surge causes bandwidth saturation, OpManager triggers an alert.
- **Root cause diagnosis**: The IT team uses OpManager’s [detailed reports](https://www.manageengine.com/network-monitoring/network-performance-reporting.html?what-is-NPM) to identify that a specific network segment is facing congestion.
- **Instant resolution**: With [OpManager’s automation capabilities](https://www.manageengine.com/network-monitoring/network-automation.html?what-is-NPM), the system reroutes traffic using available bandwidth from less busy links.
- **Performance reports**: Post-sale, OpManager's NPM system generates detailed reports for analysis, helping the team optimize network performance for future campaigns.

With OpManager's NPM tool, the e-commerce company ensures uninterrupted service, maximizes sales opportunities, and keeps customers happy. Its proactive monitoring and automation features eliminate downtime, ensuring smooth business operations.

In summary, network performance monitoring serves as the eyes and ears of your network, keeping systems running smoothly, users happy, and businesses operational. With the right NPM solution, you can detect and resolve network issues before they escalate, ensuring long-term success.

## FAQs on Network Performance Monitoring

### What is a network performance monitor?

A Network Performance Monitor (NPM) is a tool or software solution that tracks, analyzes, and reports on the performance of your network. It gathers data from network devices like routers, servers, and data centers to monitor key metrics such as bandwidth usage, latency, packet loss, and uptime. With real-time insights, NPM helps IT teams quickly detect and resolve issues, optimize network performance, and ensure a seamless user experience.

### How do you assess network performance?

Network performance is assessed by keeping track of metrics such as bandwidth usage, latency, jitter, packet loss, and uptime. With real-time data collection and analysis, NPM tools deliver actionable insights through detailed reports. By identifying anomalies and diagnosing the root cause, IT teams can ensure the network runs smoothly and efficiently.

### What is KPI for network performance?

Network Performance Indicators (KPIs) are measurable values used to evaluate how well a network is functioning. Monitoring these KPIs helps network managers proactively identify issues, optimize performance, and ensure service level agreements (SLAs) are met. Key KPIs include latency, packet loss, jitter, bandwidth utilization, and uptime — each providing insights into different aspects of network health and user experience.

### What is Cloud Network Performance Monitoring?

Cloud NPM is crucial for monitoring performance in cloud environments like AWS, Azure, and Google Cloud. Tools must monitor cloud-specific metrics and integrate with cloud services.