What is SNMPv3?

SNMP stands for Simple Network Management Protocol can be defined as version 1 (v1), version 2 (v2c) or version 3 (v3). SNMP Is a UDP (Use Datagram-based Protocol) for monitoring and managing IT networks and services. SNMP can be used to collect status information about compatible IP-connected devices and change configuration requests. The protocol uses the Manager-Agent principle. The Manager collects and process data, and the Agent reacts to messages from the manager and provides status reports. SNMP is designed for managing many network devices at a time including uninterruptible power supplies (UPS), storage devices, battery monitoring systems and communications links.

SNMPv2c is virtually identical to SNMPv1 but adds support for 64 bit counters. SNMPv3 provides enhanced security over SNMPv2C by adding the User-based Security Model (USM) for message security and the View-based Access Control Model (VACM) for access control to the framework architecture.