Cisco SCA BB SNMP Real Time Monitoring User Guide
OL-12491-01 1-1
SNMP-based monitoring tools, such as MRTG, allow network administrators to monitor the
activity and health of network devices in real time. Cisco SCA BB includes an SNMP-based real-
time monitoring solution, which is implemented using MRTG and a Round Robin Database
(RRDTool).
The SCA BB Real-Time Monitoring Configuration Utility (rtmcmd) is a command-line utility
(CLU) for automating the production of the files required by the MRTG tool.
This chapter contains the following sections:
What are MRTG and RRDTool? 1-1
Components of SNMP RTM with MRTG and RRDTool 1-2
Pre-defined SCA BB Real-Time Monitoring Reports 1-3
SCA BB Real-Time Monitoring Setup 1-5

What are MRTG and RRDTool?

The Multi Router Traffic Grapher (MRTG) is a tool that monitors the traffic load on network links
by monitoring specified SNMP counters. It generates HTML pages containing images that
provide real-time visual representation of this traffic, allowing the user to see traffic load on a
network over time in graphical form. The SCE platform running the SCA BB application provides
numerous SNMP counters that can be used to produce reports.
Round Robin Database Tool (RRDTool) stores and displays time-series data. The data is stored in
a round-robin database so that the system storage footprint remains constant over time. This tool
is used in conjunction with MRTG to produce higher-quality graphics.

References

Refer to the following links for MRTG and RRDTool documentation and download:
MRTG web page: http://www.mrtg.org/ (http://www.mrtg.org/)
RRDTool web page: http://www.rrdtool.org/ (http://www.rrdtool.org/)
CHAPTER 1
Overview