Network monitoring is the process of continuous monitoring of a computer network for slow or failing components.When any trouble occurs on the network, the monitoring system gives quick alert to the network administrator.
Particular software tools are used for the network monitoring task, and it can access the routers, firewalls, client and server. The efficiency and accuracy of computers are also analyzed by using network monitoring systems.
Network Monitoring Advantages:
- Optimal performance
- Offers high level security
- Detects and reports failure of system or network connection.
- Checks whether the host is responding to the requests.
- Speed and flexibility
Technologies used for Network Monitoring
- Simple Network Management Protocol (SNMP)
- Microsoft Computer Browser Service
Simple Network Management Protocol is used for getting information from various devices such as servers, printers, hubs, switches, and routers in a network. SNMP is mostly used in LANs. We know that, it is always disgusting to manage thousands of nodes all together. In that case, SNMP can help to control network nodes from a management host. To attain the benefits of SNMP, SNMP agent software has to be installed on the network device. SNMP is modelled in such a way that it can be utilized in many number of devices, so that the managed nodes will be less affected and the transport requirements will be minimized.
Microsoft Computer Browser Service
The Microsoft Computer Browser Service is responsible for collecting and gathering information about computers in a network. Here, the OS assigns tasks to specific PCs on the network to offer browse services. Any networked PC which can collect, maintain, and distribute a browse list can work as a browser server. Computers that are assigned as browse servers co-ordinate and work together to provide a centralized browse list that contains a detailed list of all known domains, workgroups, and the file servers in the domain to which the PC belongs. The advantage of Computer Browser Service is that it enables users to browse easily and effortlessly for available domains, work groups, servers, and resources.
Network Monitoring Tools
It’s a PHP/MySQL/SNMP-based network monitoring tool, and focusses on servers like Linux, UNIX, Cisco, Juniper, Brocade, Foundry, HP etc.
Zabbix is a very powerfulnetwork monitoring tool, and provides agent-less monitoring, collects nearly any kind of data, and can monitor up to 10,000 devices. Commercial support is also available for this outstanding open source tool.
Nagios is considered as the king of open source network monitoring system.It is not the easiest tool to set up and configure, but unbelievably strong tool, It’s possible to set up email, SMS, and printing alerts using this tool!
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