SNMP

SNMP monitors network devices by reading metrics and receiving traps/alerts.

Updated: 2026-03-05

Definition

Simple Network Management Protocol (SNMP) is used to monitor network devices (interfaces, CPU, memory).

Managers poll agents for data; devices can also send traps/informs to the manager.

Key points

Monitoring and metrics collection
Prefer SNMPv3 for security (auth + encryption)
Traps are device-initiated alerts

Common mistakes

Using SNMPv2c with default community strings.
Exposing SNMP to untrusted networks.

Related exams

CompTIA Network+ (N10-009)

Free Network+ N10-009 mini test. Continue in the app for offline packs and detailed explanations.

Cisco CCNA (200-301)

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CompTIA Security+ (SY0-701)

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Related terms

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