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Continuous monitoring of networks to detect outages, performance issues and security incidents.
Network monitoring is the continuous observation of network devices, links and traffic to detect faults, measure performance, and ensure availability. It combines metric collection, alerting and visualization to support troubleshooting and capacity planning. Effective monitoring enables SLA verification, incident response and trend-based optimization.
Proportion of lost packets over a link; important for service quality.
Time taken for packets to travel round-trip; indicator of delays.
Percentage utilization of a network interface over time.
An ISP monitors backbone links and peering points with active and passive checks to secure SLAs.
An enterprise uses NetFlow/IPFIX to detect lateral attacker movement and integrate with SIEM.
A data center aggregates interface and switch metrics to plan hardware upgrades proactively.
Inventory: record devices, interfaces and KPIs.
Connect data sources: configure SNMP, flow, exporters.
Define storage and retention; plan metric aggregations.
Implement dashboards and alerts, fine-tune thresholds.
Introduce regular review cycles and test playbooks.