Introduction

Describing key monitoring layers and their role

Effective monitoring is the cornerstone of maintaining a healthy and efficient infrastructure in network management. The concept of monitoring can be visualized as a pyramid, with each layer building on the previous one to create a comprehensive strategy.

Observability

At the foundation lies observability, which involves collecting monitored data and events. This layer is crucial because unobserved information is lost, and extensive data collection is essential for thorough analysis. Observability means gathering detailed insights about the system's behavior without immediately assessing or acting upon it.

Monitoring/Alerting

The second layer is monitoring, which begins with alerting. This is commonly misunderstood; alerts are not merely notifications, but events the monitoring system observes and can act upon. These alerts, particularly those categorized as warnings or informational, provide a detailed picture of network behavior over time. They are vital for automation and triggering corrective actions, helping to maintain network stability and performance.

Notifications

At the pinnacle of the pyramid is the notification layer. Notifications should include only critical alerts for parts of the network infrastructure that require immediate action. This distinction is significant, as many users mistakenly disable monitoring rather than just notifications, analogous to "cutting off the leg because the toe hurts."

Understanding and implementing this pyramid approach ensures a robust, effective monitoring system that enables proactive management and swift issue resolution.