The Simple network management protocol is one of the main protocols that is used for the monitoring and management of a variety of network components. It is also used extensively for the monitoring of all the network elements that characterize a specific network. This includes the devices and the information exchanged between the devices. It is for this reason that three quarters of the network elements on the market have SNMP agents bundled with them. In order for communication between the agents and network management system to take place, the devices must be configured and enabled by following a certain procedure. Any simple network managed protocol consists of the following features highlighted in the passage.
The SNMP manager
Every simple network management protocol comes with a manager. In some cases, this can also be referred to as the management system. This management system is designed to communicate with all connected devices in the network. The manager is responsible for querying agents, getting responses from any agents connected to the network, come up with the configuration settings of variables in agents and acknowledge agent events that are asynchronous.
Managed devices
This is simply a SNMP element that requires a specific form of monitoring as well as management for it to run smoothly. The manager is able to manage any device that requires constant monitoring. Devices such as this are unable to operate independently without a certain form of management and monitoring. Major examples of managed devices are routers, servers, switches and printers.
SNMP agents
A program that comes within a network element is commonly referred to as the SNMP agent. Once the agent has been enabled by the manager, it is able to collect information from the database of a device and avail it to the management system of the protocol. This information can then be used by the manager to analyze the various aspects of the device in question. The manager queries for the management data base of a device before it can receive it from an agent. A number of events can be monitored by the manager because of the agent’s operations. An SNMP Agent Simulator also comes with replicas of these agent features.
The management information database
This is the database that describes the parameters of all the managed devices. The management information database is also called the management information base or MIB for short. This is the database that is used by the manager to request the agent to avail certain information through messages called SNMP get/set/traps. In order for the information that has been availed to the manager to be used successfully, it has to be translated by the MIB. The manager only asks for the parameters defined by the MIB to enable it to manage devices and the network as a whole.
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