There are also active users at sites around the world, for example in This is especially so in Australia and New Zealand, but NeTraMet is widely used to collect usage data for Internet Service Requirements at sites using NeTraMet, and have been testedĮxtensively in successive versions of NeTraMet. These changes have been prompted by operational Structures for the Packet Matching Engine), and computed attributes Since the first release the Traffic Meter MIB has been both Users to produce simple plots from NeMaC's flow data files (fd_filterĪnd fd_extract) and to monitor - in real time - the flows at a remote The NeTraMet distributionĪlso includes several rudimentary Analysis Applications, allowing Of which may be using its own rule set, and having its flow dataĬollected at its own specified intervals. Meter Reader capable of managing an arbitrary number of meters, each The NeTraMetĭistribution files include NeMaC, which is a combined Manager and So as to make it available to Meter Readers. Stores the measured flow data in memory, and provides an SNMP agent NeTraMet is a computer program which implements the Traffic Meter, So as to produce whatever reports are required. ANALYSIS APPLICATIONS, which process the data from meter readers MANAGERS, which configure meters and control meter readers, and METER READERS, which read data from meters and store it for later METERS, which are attached to the network at the points where The Traffic Flow Architecture document describes four components: RFC 2123 Traffic Flow Measurement March 1997 1.1 NeTraMet structure and development Traffic flow measurement experience gained through three years (RTFM) was chartered to move the Traffic Flow MeasurementĪrchitecture on to the IETF standards track. It is difficult to estimate the number of sites,īut there is an active NeTraMet mailing list, which had about 130Įarly in 1996 the Realtime Traffic Flow Measurement Working Group NeTraMet is now in production use at many sitesĪround the world. Since then I haveĬontinued working on NeTraMet, producing new releases two or three Released as free software in October 1993. This version was called NeTraMet (the Network Traffic Meter), and was System, this time using hash tables to index the flow information. I moved on to develop a production-quality Performed well, but it made no attempt to recover memory from oldįlows, and the overheads in managing the balanced trees proved to be Reported at the Washington IETF in November 1992. IETF, where I was delighted to find that the Group had produced aĭetailed architecture for measuring network traffic and were waitingĭuring 1992 I produced a prototype measurement system, using balancedīinary trees to store information about traffic flows. The Internet Accounting Working Group's session at the San Diego 31Įarly in 1992 my University needed to develop a system for recovering 29Ħ Using NeTraMet in a measurement system 31Ħ.1 Examples of NeTraMet in production use. 28 4.3 Terminating and restarting meter reading. RFC 2123 Traffic Flow Measurement March 1997Ĥ.1 Sample flow data file. 17 3.2 Specifying flow direction, using computed attributes. 10 2.3.6 Observing meter reader activity. 8 2.3.3 Testing groups of rule addresses. Manager and meter reader), considers the writing of meter rule setsĪnd gives some guidance on setting up a traffic flow measurementġ.1 NeTraMet structure and development. Implementation of NeTraMet (a traffic meter) and NeMaC (a combined This memo records experiences in implementing and using the Trafficįlow Measurement Architecture and Meter MIB. This memoĭoes not specify an Internet standard of any kind. This memo provides information for the Internet community. Traffic Flow Measurement: Experiences with NeTraMet Request for Comments: 2123 The University of Auckland RFC 2123: Traffic Flow Measurement: Experiences with NeTraMet
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