Proactive Management in Networks and Program Performance

The goal of this manuscript is to simulate a company’s network intending to lower its costs with Wide Area Network (WAN) circuits due to short-term upgrades and also implement a monitoring platform to provide a closer monitoring of its network resources such as servers, services, routers, switches, and WAN circuits so that to enable the network administrator to react in a proactive manner. The network design to be described will be homogeneously composed of Cisco router and switch equipment, which will be simulated using a freeware tool called GNS3. The monitoring platform will be based on the integration of two monitoring tools Nagios and Cacti. The combination of both monitoring tools offers high performance and reliability at a low cost for the company.