SNMP Based Network Monitoring System Supporting Real-Time Visualization Of Network

Abstract

SNMP is the widely used network Monitoring Protocol. Being a defacto standard with its data collection and serving methods, collating with Round Robin Database helps Network Monitoring System is capable to graph populated information like bandwidth, traffic, memory utilization and CPU utilization of network devices. Routers, Switches, Servers and Workstations are the basic components of a network. SNMP based Network monitoring system intends to get snapshots of resource utilization such as link utilization, traffic class utilization on these network devices. When conducting network testing the statistics so obtained helps in visualization of network. Our interactive Network Monitoring System also shows real-time status of critical switches. Being extensive for Network Administrator it has modules like Network Map, Graphing, Statistics and Alarms. The system is built on an application framework designed to build an extensive Web Application for Network Administrator's use. Instead of passing commands from his desktop or by doing SSH, he can monitor his network ubiquitously using the Web-application built on the framework designed. He can get information about devices which are critical in real-time so as to take necessary steps aforetime. The user of Network Monitoring system gets an appropriate user interface through which selections of what to monitor can be made on-demand, and real-time traffic graphs can be displayed automatically. With discovery of hosts in the subnets and alerts of critical machine or application going down through email and SMS. This thesis describes how to design such a SNMP based Network monitoring systems, supporting real-time visualization of network with the graphing of network metrices. All these just using low cost tools in the framework along with Net-SNMP and RRD .