Successful Bandwidth Management at Carnegie Mellon

Presentation Resource Page

Summary

This presentation was given by Peter Hill and Kevin Miller at the Internet2 Joints Techs Meeting in Lawrence, KS on August 5, 2003. The powerpoint slides are available, as is the web-ified version.

Resources

Argus network flow capture/archival system
Packeteer vs. NetEnforcer Device Review
Sample top talkers files from before and after contacting top talkers
NetReg, our IP/DNS management system

Local Development

topt

The topt utility analyzes Argus log files. In our case, the argus log files are rotated every 5 minutes and 'topt' runs once the file is archived. The output is data summarized by IP address. This data can then be quickly queried/sorted and provides a good glimpse at current network conditions, providing "top talkers" data.

Note: Using the beta version of the argus clients (currently argus-clients-2.0.6.beta.41) is needed; certain options from 2.0.5 were changed.

argus-bytecounts

This utility aggregates individual topt files over an entire day and sends mail about the top N hosts. See the sample topt.conf file for an example of the argus-bytecounts configuration.