the Cooperative Association for Internet Data Analysis (CAIDA) at the University of California's San Diego Supercomputer Center (SDSC) is hosting a two-day workshop, September 29-30, 1999, focusing on two tools: cflowd and arts++ (www.caida.org/Tools/cflowd and www.caida.org/Tools/arts++) - Daniel McRobb author RRDtool (www.caida.org/Tools/RRDtool) - Tobi Oetiker, author cflowd and arts++ are tools for collection, storage and analysis of flow-export data from Cisco netflow output. they facilitate collection and analysis of router-based data by network engineers in support of capacity planning, trends analysis, and characterization of traffic workloads. (note btw new cflowd release today: cflowd-2-1-a2; corresponding arts++ release: arts++-1-1-a1. http://www.caida.org/archives/cflowd/0377.html) RRDtool is a time-series, data-storage and visualization tool that assists in managing data collections. it is a system to store and display time-series data, e.g. network bandwidth, machine-room temperature, server load average. RRDtool stores data in a compact manner and includes utilities for graphical presentation of synthesized data. note there won't be any cflowd stuff at nanog.montreal, but tobi should be doing an RRDtool overview. fwiw. the workshop is open to network operators responsible for monitoring and/or managing WAN networks. attendance is limited and will be on a first-come basis. details available at http://iec.caida.org/workshop/9909/. if you have any questions, please contact Theresa Ott <theresa@caida.org> 858/822-0956. k