Yeastar Central Management SNMP Overview

Simple Network Management Protocol (SNMP) is a standardized protocol for monitoring and managing network devices. By connecting Yeastar Central Management to a Network Management System (NMS) through SNMP, network administrator can query information of YCM server, Cluster servers, P-Series Cloud PBXs, as well as to receive and monitor alerts from the PBXs on NMS.

Requirements

  • Yeastar Central Management：Version 87.14.0.31 or later.
  • P-Series Cloud PBX: Version 84.15.0.22 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 devices: 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 data on the managed device, responds to requests from the NMS, and returns data to the NMS.
  • MIB (Management Information Base): An information base that contains definitions and information about the properties of a managed device. The manageable features of the device is called managed objects (or just objects or variables).

We provide a typology to help you understand the connection and interaction of each SNMP component.

As the typology shows, each managed device contains an SNMP agent process, an MIB, and multiple managed objects. Upon receiving requests from NMS, the agent queries or modifies variables in the MIB, and returns operation result to the NMS; In addition, when the managed device triggers a trap event regarding the MIB, it will send trap messages to NMS.

Supported SNMP version

Yeastar Central Management 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 Central Management supports the following SNMP operations:
  • SNMP Get: Allow network administrator to collect data from the managed device.
  • SNMP Trap: The managed device proactively sends unsolicited trap messages to notify NMS that an urgent and significant event has occurred on the managed device.