Network monitoring to check the status of devices, services, ports, protocols and analysing traffic

The term network monitoring describes the use of a system that constantly monitors a computer network for slow or failing components and that notifies the network administrator (via email, SMS or other alarms) in case of outages. It is a subset of the functions involved in network management. While an intrusion detection system monitors a network for threats from the outside, a network monitoring system monitors the network for problems caused by overloaded and/or crashed servers, network connections or other devices. The goal of this paper is to examine the effects of a logical firewall on networks provided for public research institutes measured by performance indicators like web and application usage, traffic analysis and security parameters.