Yeastar P-Series Software Edition SNMP Overview

Simple Network Management Protocol (SNMP) is a standardized protocol for monitoring and managing network devices. By connecting Yeastar P-Series Software Edition to a Network Management System (NMS) through SNMP, network administrator can query PBX information and monitor PBX on NMS.

Requirements

The version of Yeastar P-Series Software Edition is 83.22.0.138 or later.

SNMP components

An SNMP system consists of 4 key components:

  • Manager: A centralized system used to monitor the SNMP network, also known as Network Management System (NMS).
  • Managed device: An SNMP-enabled network entity that is managed by the SNMP manager. These are usually routers, switches, servers, etc.
  • Agent: A network-management software module that runs on each managed device. It maintains device data, responds to requests from the NMS, and returns data to the NMS.
  • MIB (Management Information Base): An information base that defines and stores information about the properties of a managed device. The manageable features of the device is called managed objects (also called objects or variables).

We provide a typology to help you understand the connection and interaction of these SNMP components.

As the typology shows, each managed device contains an SNMP agent, an MIB, and multiple managed objects. When the NMS sends a request, the agent retrieves or updates variables in the MIB and returns the result to the NMS. In addition, when a trap event related to the MIB is triggered, the managed device proactively sends a trap message to the NMS to report the event.

Supported SNMP version

Yeastar P-Series Software Edition supports SNMPv3, which has all the functions of SNMPv1 and SNMPv2c. In addition, SNMPv3 provides secure access to devices by authenticating and encrypting data packets over the network.

Supported SNMP operation

Yeastar P-Series Software Edition supports SNMP for network management with the following operations:
  • SNMP Get/Walk: NMS retrieves information from network entities, either as individual MIB objects or as a set of related objects within a MIB tree.
  • SNMP Trap: Network entities proactively send unsolicited trap messages to NMS when a critical event occurs.