how to add sflow device in prtg

if you are trying to receive sFlow data from two different devices, make sure you entering the sender IP in the senor settings so that PRTG can differ the flos.

You can use our free sFlow tester to verify that flows are reaching your PRTG installation.

https://www.paessler.com/tools/sflowtester

be aware that at the moment only sFlow version 5 is supported.

i have enter sender ip in the sensor setting, but still no change. prtg still cannot capture sflow from 2nd device

any results with the sflow tester?

i have try sflow tester, but after i press start button always show warning dialogue box "Socket konnte nicht gebuden werden. Adresse und Port werden bereits verwendet".

you have to pause your sFlow sensors first so that the port is no longer blocked by PRTG and can be used by the Tester.

this is capture from sFlow sensor

https://drive.google.com/file/d/0B7mZI_2fpdbSb0VxbFhKZE9ZZms/edit?usp=sharing

If, on your second device, you set up the sflow packets to be sent to another port, then set up a second sensor for that port, do you see any data that way? Do you see it on the tester if you don't in PRTG?

To help PRTG distinguish which sflow data is coming from which device, it may be beneficial to have the two devices send to different ports.

i have change sflow port in device configuration and prtg sflow configuration, but nothing happen, prtg still cannot captur flow packet. any another idea to solve this issue?

Did you try to use the tester to see if there are packets coming from the device? Again, make sure to pause the PRTG sensor before using the tester.