https://www.paessler.com/Download_PRTG/30_Day_Trial
广告Check bandwidth consumption, network traffic, error messages of all your routers with PRTG. PRTG uses SNMP, Packet Sniffer and NetFlow/sflow/jFlow. Predefined or custom sensors.
Types: PRTG Network Monitor, PRTG Enterprise Monitor, PRTG Hosted Monitor