Oreneta is a platform for realtime network analysis. It provides tools for the measurement of quality of service (QoS) between two points of a network. It is designed to work in passive mode, so it will not change the contents of what it examines. IPv4 and IPv6 are supported, for analysis and control. It also serves as flow monitor in LAN enviroments, so you can see what is happening in your network at this very moment. Oreneta is released under the GNU/GPL license.
Oreneta has two main components: the meters and the analyzer:
Meters are synchronized by NTP protocol. Additional accuracy can be obtained with the utilization of GPS clocks (and Linux PPS kit) The analyzer doesn't need any kind of clock synchronization, because it looks at the timestamps of the captured packets.
This is a sample schema of Oreneta scenario:
Common flows automatically recognized by Analyzer
Average packets per second (PPS)
Inter-packet Dealy (delay between two consecutive packets)
One Way Delay with maximun and minimun values
Snapshot flows (from a PS2 videogame)
Throughput from snapshot flows
Packet size from snapshot flows