Can PRTG do NetFlow?
PRTG lets you monitor your bandwidth use, server, CPU, traffic analysis, website, cloud services, and much more. And can be used as a professional NetFlow Analyzer software, as well.
How do I change the interval in PRTG?
Adjusting Scanning Intervals In the PRTG web interface, go to Setup | System Administration | Monitoring (“System & Website” in previous versions), Scanning Intervals section. Click in the list, and add your desired scanning intervals.
What is unusual sensor in PRTG?
It means that PRTG calculates “1 hour interval average”, based on the data obtained on last four Wednesdays, between 9:00 and 10:00 AM, and if traffic is higher than that average, sensor will show “unusual” warning.
What is NetFlow timeout?
Set active timeout to 1 minute: “ip flow-cache timeout active” is the time interval NetFlow records are exported for long lived flows (e.g. large FTP transfer). 1 minute is recommended and configuration is in minutes in IOS and seconds in MLS and NX-OS.
Is PRTG free?
PRTG 100 is available for both personal and commercial use for free, but is limited to monitoring 100 sensors. If you want to monitor more sensors, you need one of the Commercial Editions. The commercial licenses start at 500 sensors and go up to an unlimited number of sensors. Please consider the system requirements.
Does PRTG support changing scanning intervals?
From the PRTG main menu, select Sensors | By Type and select for example all Ping sensors. Scroll to Inherit Scanning Interval, select the Scanning Interval checkbox, and set the desired value to modify the scanning interval settings for all selected sensors. Click OK to save your settings.
What is scanning interval in PRTG?
A scanning interval in PRTG is the amount of time between two sensor scans. Certain sensors have fixed scanning intervals which you can’t adjust. There are also sensors that have a fixed minimum scanning interval for performance reasons. You cannot run these sensors in shorter intervals than this minimum interval.
How do I clear NetFlow cache?
clear ip flow stats
- To clear the NetFlow switching statistics, use the clear ip flow stats EXEC command.
- clear ip flow stats.
- The show ip cache flow command displays the NetFlow switching statistics. Use the clear ip flow stats command to clear the NetFlow switching statistics.
- show ip cache.
What happens if there is no active flow timeout?
Without the active flow timeout, PRTG would already have completed data processing for the preceding 59 minutes. PRTG would store and display the 1-GB data transfer as a whole after 60 minutes, the end of the transmission, because it cannot retroactively change any data.
When does PRTG show the end of transmission?
PRTG would store and display the 1-GB data transfer as a whole after 60 minutes, the end of the transmission, because it cannot retroactively change any data. For example, this is exactly what happens when monitoring the Cisco ASA, because the ASA does not support active flow timeout.
How to use firebox NetFlow with PRTG?
In the Receive NetFlow Packets on UDP Port text box, type 8885. Select one or more local IP addresses for Receive NetFlow Packets on IP Address. In the Active Flow Timeout text box, type a value. PRTG recommends a value that is 1 minute greater than the Active Flow Timeout value you configured on the Firebox.
What’s the maximum timeout for a NetFlow sensor?
Enter a time span in minutes after which the sensor must receive new flow data. If the timeout elapses and the sensor receives no new data during this time, it shows the Unknown status. Enter an integer value. The maximum timeout is 60 minutes. We recommend that you set the timeout one minute longer than the timeout in the hardware router device.