About MRTG...

Introduction
MRTG is wonderful tool. You can use it to monitor traffic on your router or leased server located at remote IDC. Since it is written in Perl and some code in C language, it is portable and high performance tool.
What is MRTG?
As explained in official mrtg(1) man page "The Multi Router Traffic Grapher (MRTG) is a tool to monitor the traffic load on network-links. MRTG generates HTML pages containing GIF images which provide a LIVE visual representation of this traffic." Here is public view of my own site. Please note following discussion based upon Red Hat Linux Enterprise version 3 update 2 and RHEL v4.0.
What is SNPM and why should I care?SNMP is Simple Network Management Protocol. It is use to manage IP network devices such as servers, routers, switches etc. Administrator can find or manage network performance, solve problem or even optimize it further. For more information on official UNIX/Linux SNMP please see UCD-SNMP/NET-SNMP Tutorials and an excellent resource at Snmplink.org
AssumptionsThese installation instructions assume you have:


Linux distribution
You would like to perform MRTG and snmp binary installation using rpm. If you are looking for source installation then visit author's web site here. This page has an excellent information (systematically) to install it from source.
Required RPMs
mrtg
snmp
snmp-utils