Overview
Network monitoring is essential for maintaining high availability and performance. It involves collecting data from network devices and analyzing it to identify trends, detect anomalies, and troubleshoot issues.
Key Metrics Monitored
- Uptime/Availability: Is the device or service reachable?
- Bandwidth Usage: How much traffic is flowing through a link?
- Error Rates: Are packets being dropped or corrupted?
- Latency/Jitter: How fast is data traveling across the network?
- Device Health: CPU usage, memory usage, and temperature of routers and switches.
Common Protocols
- SNMP: The traditional standard for network monitoring.
- Syslog: For collecting log messages from devices.
- Streaming Telemetry: A modern, push-based approach for real-time monitoring.